Version 20 released Friday, August 24, 2007
Pantry, command-line nutrient analysis.
Version 20, released Friday, August 24, 2007.
Copyright 2007 Omari Norman.
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
Pantry's "built-in" XML validator is a modified version of xmlproc. xmlproc is Copyright 1998-2000 by Lars Marius Garshol, Oslo, Norway.
All Rights Reserved
Permission to use, copy, modify, and distribute this software and its documentation for any purpose and without fee is hereby granted, provided that the above copyright notice appear in all copies and that modified copies are clearly marked as such.
LARS MARIUS GARSHOL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL LARS MARIUS GARSHOL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
Table of Contents
--print option--add
and --edit; deleting with the
--delete optionList of Examples
--print traits--print units--print nutsnuts
reportsunits
reportsblank
report--exact-match
optionfacts nutrient list
with 100 grams of bananassum
report--nutrient-list
option with the sum
reportmaster file?qty may be a fraction or mixed
number--group option--sort option--auto-order with only
the date trait
changedmeasures
report--refuse
option.pantryrc.xml
file.pantryrc.xml with
search path specified.pantryrc.xml.pantryrc.xml with
new nutrient list.pantryrc.xml with
sort-order element--by-nut
option--by-nut with Total
Fat--by-nut with
--c-unit--by-nut option-K optionapple
returns 163 resultspaste
reportpantry.xml file with
blank pantry elementpantry.xml with
food elementnutrients
elementpantry.xml
file.recipe
elementingredientsrecipe reportrecipe report with
other cool stuffTable of Contents
As you can see, this user manual is of some length. Right now you are probably wondering what Pantry does, whether it is right for you, and how it compares to similar programs.
Pantry is a command-line oriented nutrient analysis program. That's right, command-line oriented. What's more, Pantry is a true command-line program: there are no menus, there are no prompts. Instead, you simply type commands from your shell prompt, and Pantry does what you ask it to do, displaying results if you have asked it to do that. Thus, Pantry is different from other programs which run in a text-based terminal but which also present the user with menus; Wikipedia calls such programs text-user interface programs.
In addition to using Pantry from your shell prompt, you also interact with it through XML files. Using XML, you can edit Pantry's configuration file. You can also add nutrient information for custom foods (though Pantry includes nutrient information for over 7,000 foods to get you started) and recipes using XML.
Pantry's true command-line interface gives it many advantages. Because Pantry works from your shell prompt, you can easily combine it with other text-processing tools. You can also easily write scripts incorporating Pantry, in ways that even I cannot anticipate. This is the strength of the Unix "toolbox" way of using a computer.
In addition, nothing beats the speed of a command-line program for something you use frequently and are familiar with. If you are using a nutrient-analysis program to track your daily food intake, you will appreciate how quickly you can use Pantry for this purpose. Indeed, I developed Pantry due to my frustration with current tools because it was very tedious to use them to quickly tally a day's food intake.
Because Pantry runs from a text console, you can easily set it up on one computer that has an SSH server running. You may then access your nutrient data from any computer that has an SSH client.
The biggest disadvantage of using Pantry is the same as its biggest advantage: its command-line interface. Graphical user interface programs attempt to be self-documenting: just sit down, click on some buttons, and hopefully you can figure things out. With Pantry, on the other hand, you will absolutely have to read this manual to figure out how it works, and you will need some practice before you are comfortable with Pantry. In this way, Pantry resembles other command-line oriented Unix programs. As with other Unix programs, once you learn Pantry, you will love its speed and efficiency--but you will have to spend some time learning.
Similarly, because of its command-line interface, you will find that you are most efficient with Pantry if you know your way around a Unix shell prompt. For example, you will find that you can use Pantry more quickly if you know how to use your shell's features to manipulate your command history. Such knowledge is useful for any Unix command-line program, not just Pantry; however, building up this knowledge takes some time.
Pantry has no tools to graphically visualize your food intake. I might eventually add such features using Gnuplot or something similar.
A final disadvantage of using Pantry is that it is still new. I am still tweaking it, making changes, adding features, and improving the documentation. But perhaps this is not such a disadvantage: software that improves is nice. If you have any features that you would like, ask!
I know I like to check out many possible programs before settling on one to learn to use--and I always like trying new programs too. Here are some possible alternatives to Pantry that you might take a look at:
This is probably the leading nutrient analysis program for Unix. It has a text user interface and is very mature. NUT website.
The best GUI program for nutrient analysis that I have ever seen. It does more than nutrient analysis, too--for example it can track your exercise too. (Pantry will never do anything other than nutrients.) Crosstrainer only runs on Windows though, and I have not used Windows in quite awhile. Crosstrainer is also somewhat expensive. Crosstrainer website.
This website has great tools, and neat graphical features. Using it as a food diary is somewhat cumbersome, however. nutritiondata.com website.
This is the best food diary website that I have found. Fitday website.
For help using Pantry, join the Pantry users email
list. Signup info is here.
You can also report bugs by sending an email to <pantry-users@lists.sourceforge.net>.
You don't have to subscribe to the list to send emails
to it (but of course you have to subscribe to get
replies!)
Table of Contents
This section will tell you how to install Pantry on Linux. Pantry is written in Python, a cross-platform language. Therefore, it should run on any Unix-like operating system, including any of the BSDs and Mac OS X. However, I don't know anything about the BSDs or OS X, so I can't give you instructions for those. However, Pantry is distributed using the Python distutils, which is a standard way to distribute Python software, so if you familiarize yourself with distutils you should be able to install Pantry on any Unix-like operating system.[1]
I'll assume you're comfortable using command-line tools--if you weren't, you probably wouldn't be attempting to use a command-line nutrient analysis program. The following sections will tell you step by step how to install Pantry.
Warning for experienced users: Pantry (and most Python programs) do not use the GNU configure and build system--that is, ./configure; make; make install will not work, so read the directions below.
Unpack the Pantry distribution file using tar -xzf pantry-*.tar.gz. Change to the newly made directory with cd pantry-*/.
Become root, and issue python setup.py install. That's it!
Optional: install manual page. The Pantry
installer only installs the Panty source code
and two very short scripts used to start Pantry.
It does not install the man page. In the Pantry
distribution, you will find a file
docs/pantry.1. Copy this to
a location where your other locally installed
section 1 manpages are--on my system, that is
usr/local/share/man/man1/.
You will also find the manpage in Appendix A, Reference pages.
The installer only installs the Python source code and two trivial launcher scripts. It does not install documentation or many other handy files that are in the Pantry distribution. So you will want to keep handy the directory where you unpacked the Pantry tarball. We'll use some of those files later on.
Speaking of documentation, you will find this manual in
many formats (including PDF, plain text, and the XML
source code) in the docs/
directory.
The installer might tell you your version of Python is too old. Pantry requires at least Python 2.4.[2] If your Python is too old, use your distribution's package manager to install a newer one.
If you want to install Pantry as a non-root user, you'll want to read the Python distutils manual, which explains various options for the setup.py script.
Also, I should warn you that Python's distutils has no way to uninstall what it installs. If you want to easily remove Pantry, users of most distributions should look into using CheckInstall. Gentooists can easily write an ebuild for Pantry using the distutils eclass.
The Pantry User Guide, the document that you are
reading right now, is available in several formats in
the Pantry distribution in the directory named
docs. There you will find one
gigantic HTML file and a plain-text version as well. You
will also find an HTML version that has been "chunked"
into smaller files in the
docs/html-chunk directory. Finally,
you will also find a PDF version in US Letter-sized
paper. Unfortunately, right now I do not know how to
make a good PDF in A4 paper, so US Letter is all you
will find.
There are many examples sprinkled throughout the
text. In these examples, your shell prompt is indicated
with $. Many of the
lines we will be entering in the examples are quite
long. When you type them into your computer, you can
just enter them on one line. However, this would look
bad in the printed documentation, so we use the
backslash to continue lines across line breaks. The
beginning of each continued line is indicated with a
>. Don't enter the
> if you are
entering the lines at your computer.
Some of the examples are too wide to fit on the PDF pages, so they got cut off. I don't know how to fix this, but you can always look at the HTML versio to see examples that are not cut off.
[1] Pantry may also be run on Windows, though this is not tested at this point and the documentation is Unix-centric. Frankly I doubt many Windows users would be interested in running Pantry in a Windows environment; Windows is pretty hostile to the command line. Maybe running it in Cygwin wouldn't be so bad though.
[2] Pantry uses at least one Python module, subprocess, that is new in Python 2.4.
Table of Contents
--print option--add
and --edit; deleting with the
--delete optionThe core program of Pantry is named, appropriately enough, pantry. In this section you'll learn how pantry works. But first you'll need to understand the way Pantry was designed--that is, the Pantry Paradigm.
The basic unit of Pantry is the food. Foods are grouped together and stored on your computer in files. There are four different kinds of files that store foods, but the most important kind is simply called a Pantry native file.[3] Pantry can store thousands of foods in a single Pantry native file, yet Pantry will be able to locate and search for foods very quickly.
Pantry comes with a Pantry native file named
master that contains 7,294 foods.
These foods come from the
U.S. Department of Agriculture's National Nutrient
Databse for Standard Reference, release 19.
A big thank-you goes to these folks for producing this
database--without it Pantry would never have been
written.[4]
Every food has several traits.
Later on you will learn how you can set a food's traits;
foods in the master file already
have their traits set. The traits are:
Food traits
name
The name of this food, such as
Bananas, raw.
date
The date on which you ate this food. This is a string; no special date formatting rules apply to it.
meal
The meal in which you ate this food
(Breakfast
Lunch,
midnight snack,
etc--whatever you wish)
group
Useful for grouping foods together. You can use familiar food groups (such as Dairy, Poultry, etc.) or you might group foods together if you eat them together (for instance you might have a group "Cereal and Milk" in which you place those two foods.) We'll learn more about how you can use groups later.
In the master file, each
food's group attribute
is already set to one of twenty-four food
groups, such as Fruits and fruit
juices or
Snacks.
qty
How much of this food you ate. Pantry
records this internally as a string; Pantry
internally converts it to a number as
necessary to perform calculations. You can
therefore set the qty
trait to a string that will convert to an
integer or to a floating-point number. This
can be a number or a fraction, such as
1/3. It can even be a
mixed number, such as 1
1/3. You can set
qty equal to zero, but
this does not delete the food--later we will
discuss how to delete foods. You can even
use negative numbers, though I do not know
why you would want to do such a thing.
unit
A description of the amount of this food you
ate. The units that you can pick from vary
for different foods. We will use the term
available units to
refer to the units that you can pick from
for a particular food. Every food has at
least three available units:
oz,
g, and
lb. The other
available units vary by food. For example,
the food in the master
file named Bananas,
raw has several other units
available, including Cup,
mashed; large
(8" to 8-7/8"
long), and extra
small (less than 6"
long).
When you keep track of which foods you eat,
you'll set the quantity and unit to whatever
makes sense: for instance, if you eat some
Bananas, raw, you can
set the quantity to 2
and the unit to large (8" to
8-7/8" long). Remember,
you can use any number for quantity you
want, including floating point numbers, but
you can set the unit only to what is
available for that particular food.
pctRefuse
The percent of this food that is waste.
For example, with an apple, the core is
refuse; for a chicken drumstick, the bone is
refuse. Many foods have no refuse; in that
case, this trait will be set equal to an
empty string or to zero. As with
the qty trait, Pantry
internally keeps this as a string,
converting it to a number as needed.
refDesc
A description of the refuse, such as
Core or
Bone.
comment
Whatever notes you may wish to add.
order
Any string. As we will see later,
pantry can sort reports
however you like; using the
order trait, you can sort
foods into any arbitrary order.
All Pantry traits are strings. This includes the date
trait. Thus, you can set the date trait for a food to
2007-05-06,
05-06,
Tuesday, or even Who
cares? if you wish. You may also set
this trait, and all traits except
unit and qty,
Only the qty and
unit traits must be set to a
non-zero-length value.
Pantry works by copying foods from one file to another.
This makes the pantry command mostly
a glorified copier. pantry starts by
examining all the foods in each file that you specify.
If you do not specify any search
options, then all foods in the each file
you specify are copied to a temporary place that we will
call the buffer. Otherwise, if
you specify any search options, then
only the foods whose traits match
all of the search options will be
copied to the buffer. Any food not matching the
search options you specify is ignored.
pantry then modifies the traits of
the foods in the buffer using any change
options you specified.
pantry can then send the buffer to a
report (which prints the foods to standard output) and
add the buffer to other files. All this is best
understood with examples.
Because Pantry works by copying and changing foods from
food files, you'll first need a food file with
interesting foods in it. The Pantry distribution
contains a file named master. It
contains over 7,000 foods, which should be enough to get
you started. Copy this file to a convenient place (I'd
suggest ~/pantry/master unless you
have a better idea) because you'll be using it often and
you might even want to change it. Change to the
directory that contains your copy and we'll get started!
Like many Unix commands, the synopsis of the pantry command takes zero or more arguments and zero or more options, that is: pantry [OPTIONS] [FILE ...] . FILE specifies the file you wish to search for foods. pantry will search using OPTIONS that you may specify. OPTIONS also perform many other useful tasks, such as modifying the traits of the foods pantry finds, printing reports of the foods pantry finds, and adding the resuls to files.
For a simple example, run pantry --name
Bananas master in the same directory as
the file containing your master
file. What happens? Well, as far as you can tell,
nothing. But things actually were happening behind the
scenes. First, pantry examined every
food in master. Because you
specified a search option, --name
Bananas, Pantry copied all foods matching
that criterion into a buffer. However,
you did not tell pantry to actually
do anything with the buffer. So
pantry terminated without showing you
anything at all, and returned you to your command
prompt. The buffer that pantry made
is gone, never to be seen nor heard from again.
To actually see the buffer, use the
--print option. It takes a single
argument, called a report.
Here is an example for starters:
Example 2.1. Introducing the --print option
$pantry --name Bananas --print names masterCereals ready-to-eat, KELLOGG'S, CORN FLAKES With Real Bananas Bananas, dehydrated, or banana powder Bananas, raw
As you can see, --print names simply
prints the name of each food in the buffer. Here the
name of the report is names.
Other handy reports are traits,
units, and
nuts, to print the traits,
available units, and nutrient breakdown of each food in
the buffer.
The traits report only shows a
trait if it is not equal to zero or None (in the case of
the pctRefuse or
qty traits) or if it is not
equal to a zero-length string (in the case of any other
trait.)
Example 2.2. Using --print traits
$pantry --name Bananas --print traits masterCereals ready-to-eat, KELLOGG'S, CORN FLAKES With Real Bananas Group: Breakfast Cereals 100 g (100g) Bananas, dehydrated, or banana powder Group: Fruits and Fruit Juices 100 g (100g) Bananas, raw Group: Fruits and Fruit Juices Refuse: 36 percent Skin 100 g (100g)
The units report prints each
food's available units. It does not print
g, oz,
or lb as these are available
for every food.
Example 2.3. Using --print units
$pantry --name "Bananas, raw" --print units mastercup, mashed large (8" to 8-7/8" long) medium (7" to 7-7/8" long) extra small (less than 6" long) small (6" to 6-7/8" long) NLEA serving cup, sliced extra large (9" or longer)
The nuts report prints a food's
nutrient breakdown. Later we will talk about why
pantry printed these particular
nutrients, as there are many more nutrients for
Bananas, raw than were printed
here. Also, later we will learn what the two rightmost
columns in the report mean (you probably can tell what
the first two columns are for.)
Example 2.4. Using --print nuts
$pantry --name "Bananas, raw" --print nuts masterNutrient Amount %G %TOT ------------------------------------------------------- Calories 89 kcal 4 100 Total Fat 0 g 1 100 Saturated Fat 0 g 1 100 Cholesterol 0 mg 0 0 Sodium 1 mg 0 100 Total Carbohydrate 23 g 8 100 Dietary Fiber 3 g 10 100 Sugars 12 g NA 100 Protein 1 g 2 100 Vitamin A 64 IU 1 100 Vitamin C 9 mg 14 100 Calcium 5 mg 0 100 Iron 0 mg 1 100
The nuts and
units reports print only a
food's nutrients and available units,
respectively. They do not print anything else about
the food, not even its name
trait. When there is more than one food in the
buffer, one report is printed for each food.
It may be obvious that you are
looking at the results for more than one food when
you are examining a set of
nuts reports.
Example 2.5. Two nuts
reports
$pantry --name Papaya --print names masterPapayas, raw Papaya nectar, canned
$pantry --name Papaya --print nuts masterNutrient Amount %G %TOT ------------------------------------------------------- Calories 39 kcal 2 41 Total Fat 0 g 0 48 Saturated Fat 0 g 0 48 Cholesterol 0 mg 0 0 Sodium 3 mg 0 38 Total Carbohydrate 10 g 3 40 Dietary Fiber 2 g 7 75 Sugars 6 g NA 30 Protein 1 g 1 78 Vitamin A 1094 IU 22 75 Vitamin C 62 mg 103 95 Calcium 24 mg 2 71 Iron 0 mg 1 23 Nutrient Amount %G %TOT ------------------------------------------------------- Calories 57 kcal 3 59 Total Fat 0 g 0 52 Saturated Fat 0 g 0 52 Cholesterol 0 mg 0 0 Sodium 5 mg 0 62 Total Carbohydrate 15 g 5 60 Dietary Fiber 1 g 2 25 Sugars 14 g NA 70 Protein 0 g 0 22 Vitamin A 361 IU 7 25 Vitamin C 3 mg 5 5 Calcium 10 mg 1 29 Iron 0 mg 2 77
However, in the next example, you cannot even tell that
you are looking at two units
reports here, and you certainly cannot tell the two
foods apart. This next example shows units reports for
both Papaya nectar, canned and
Papayas, raw:
Example 2.6. Two units
reports
$pantry --name Papaya --print units mastersmall (4-1/2" long x 2-3/4" dia) medium (5-1/8" long x 3" dia) cup, mashed cup, cubes large (5-3/4" long x 3-1/4" dia) fl oz cup
We will discover a solution to this problem in the
next section.
As you saw above, using just the
nuts or
units reports can be
confusing, especially when you have more than
one food in your buffer, because these
reports do not indicate which food goes with
which nutrients or with which units.
An easy solution for this is to combine reports. By separating each report name with a dash, you may tell pantry to print more than one report for each food.
Example 2.7. Combining reports
$pantry --name Papaya --print names-units masterPapayas, raw small (4-1/2" long x 2-3/4" dia) medium (5-1/8" long x 3" dia) cup, mashed cup, cubes large (5-3/4" long x 3-1/4" dia) Papaya nectar, canned fl oz cup
$pantry --name Papaya --print traits-nuts masterPapayas, raw Group: Fruits and Fruit Juices Refuse: 33 percent Seeds and skin 100 g (100g) Nutrient Amount %G %TOT ------------------------------------------------------- Calories 39 kcal 2 41 Total Fat 0 g 0 48 Saturated Fat 0 g 0 48 Cholesterol 0 mg 0 0 Sodium 3 mg 0 38 Total Carbohydrate 10 g 3 40 Dietary Fiber 2 g 7 75 Sugars 6 g NA 30 Protein 1 g 1 78 Vitamin A 1094 IU 22 75 Vitamin C 62 mg 103 95 Calcium 24 mg 2 71 Iron 0 mg 1 23 Papaya nectar, canned Group: Fruits and Fruit Juices 100 g (100g) Nutrient Amount %G %TOT ------------------------------------------------------- Calories 57 kcal 3 59 Total Fat 0 g 0 52 Saturated Fat 0 g 0 52 Cholesterol 0 mg 0 0 Sodium 5 mg 0 62 Total Carbohydrate 15 g 5 60 Dietary Fiber 1 g 2 25 Sugars 14 g NA 70 Protein 0 g 0 22 Vitamin A 361 IU 7 25 Vitamin C 3 mg 5 5 Calcium 10 mg 1 29 Iron 0 mg 2 77
As you can see, some whitespace would help make
this more readable. To add whitespace, use the
blank report. It simply
prints a blank line.
Example 2.8. Using the blank
report
$pantry --name Papaya --print traits-nuts-blank masterPapayas, raw Group: Fruits and Fruit Juices Refuse: 33 percent Seeds and skin 100 g (100g) Nutrient Amount %G %TOT ------------------------------------------------------- Calories 39 kcal 2 41 Total Fat 0 g 0 48 Saturated Fat 0 g 0 48 Cholesterol 0 mg 0 0 Sodium 3 mg 0 38 Total Carbohydrate 10 g 3 40 Dietary Fiber 2 g 7 75 Sugars 6 g NA 30 Protein 1 g 1 78 Vitamin A 1094 IU 22 75 Vitamin C 62 mg 103 95 Calcium 24 mg 2 71 Iron 0 mg 1 23 Papaya nectar, canned Group: Fruits and Fruit Juices 100 g (100g) Nutrient Amount %G %TOT ------------------------------------------------------- Calories 57 kcal 3 59 Total Fat 0 g 0 52 Saturated Fat 0 g 0 52 Cholesterol 0 mg 0 0 Sodium 5 mg 0 62 Total Carbohydrate 15 g 5 60 Dietary Fiber 1 g 2 25 Sugars 14 g NA 70 Protein 0 g 0 22 Vitamin A 361 IU 7 25 Vitamin C 3 mg 5 5 Calcium 10 mg 1 29 Iron 0 mg 2 77
Here are some important details about searching.
As you've seen, name is one trait
you can search by. When searching, you may limit
your buffer by any traits you wish. Here are the
options you use in order to limit your search by
particular traits. As with many Unix
commands, you can use either a long option
(indicated by two dashes) or a short option (with
one dash).
-n or
--name
-g or
--group
-d or
--date
-m or
--meal
-u or
--unit
-q or
--qty
-c or
--comment
-o or
--order
You may use as many of these options in a single pantry command as you wish. If you use more than one search option, then Pantry will add foods to the buffer only if they match all the traits you specify:
Example 2.9. Using multiple search options
$pantry --name Bananas --print traits masterCereals ready-to-eat, KELLOGG'S, CORN FLAKES With Real Bananas Group: Breakfast Cereals 100 g (100g) Bananas, dehydrated, or banana powder Group: Fruits and Fruit Juices 100 g (100g) Bananas, raw Group: Fruits and Fruit Juices Refuse: 36 percent Skin 100 g (100g)
$pantry --name Bananas --group Breakfast --print traits masterCereals ready-to-eat, KELLOGG'S, CORN FLAKES With Real Bananas Group: Breakfast Cereals 100 g (100g)
A very important detail about searches is that all
search patterns are regular expressions.[5]
This allows you to be very flexible in how you
specify your searches. You've already seen one
consequence of this: a search pattern only needs
to match a portion of a trait in order for that
food to be included in the results--that is,
--name Bananas matches foods
that have "Bananas" anywhere in their name.
If you don't want to learn regular expressions, that's okay. Simple searches using just letters and numbers will work just fine. However, you should know that the following characters have special meanings in regular expressions:
[\^$.|?*+()
If you don't know regular expressions, avoid including
any of these characters in your search patterns.
Remember to quote your search patterns if they include
spaces. For example:pantry --name 'Bananas,
raw' --print traits-units master.
If you want to learn more about the power of regular expressions, this website is a great place to start. For those already familiar with regular expressions, following is an example of how they can come in handy. This also demonstrates the power of Pantry's command line interface, as it is easy to use Pantry with other Unix programs such as wc, which counts words and lines.
Example 2.10. Using regular expressions
$pantry --name Milk --print names master | wc -l54
$pantry --name "Milk.*reduced" --print names masterMilk, chocolate, fluid, commercial, reduced fat Milk, reduced fat, fluid, 2% milkfat, with added vitamin A Milk, chocolate, fluid, commercial, reduced fat, with added calcium Milk, dry, nonfat, calcium reduced Milk, buttermilk, fluid, cultured, reduced fat Milk, reduced fat, fluid, 2% milkfat, with added nonfat milk solids, without added vitamin A Milk, reduced fat, fluid, 2% milkfat, protein fortified, with added vitamin A Milk, reduced fat, fluid, 2% milkfat, with added nonfat milk solids and vitamin A
As the previous example shows if your search pattern includes characters that are special to your shell, remember to quote it--but you already knew that if you're familiar with regular expressions.
Because search patterns are regular expressions, they
will sometimes return more foods than you are interested
in. In the next example, I only want to know about
Apples, raw, without skin.
However, the buffer also includes two other foods that
contain that same string:
Example 2.11. A search that has more foods than I am interested in
$pantry --name "Apples, raw, without skin" --print names \>masterApples, raw, without skin, cooked, microwave Apples, raw, without skin Apples, raw, without skin, cooked, boiled
There are two ways to fix this. The first way is
to use a feature of regular expressions called
anchors. The
$ anchor matches the end of the
string. Here, it tells Pantry that there cannot be
any characters between Apples, raw,
without skin and the end of the
name trait. The anchor is only
the dollar sign; the backslash is there in order to
keep the shell from giving the dollar sign a special
meaning. See this
webpage for more information on why you
need to quote characters in Unix shells.[6]
Example 2.12. Using anchors
$pantry --name "Apples, raw, without skin\$" --print names \>masterApples, raw, without skin
Another way to fix this problem is to use the
--exact-match or -x
option. This option changes all search options
so that they no longer use regular expressions. Instead,
with this option, a food's traits must exactly
match the search options in order to be included in the
buffer.
Example 2.13. Using the --exact-match
option
$pantry --exact-match --name "Apples, raw, without skin" \>--print names masterApples, raw, without skin
By default, all searches in Pantry are case
sensitive. This is true both for searches by trait as
well as when you are using the --c-unit
option. In addition, searches using the
--exact-match option are also case
sensitive. To make all these searches case insensitive,
use the --ignore-case or
-i option.
In Pantry, nutrient lists have two
purposes: first, they allow you to select which
nutrients appear in nuts reports;
and second, they allow you to compare your nutrient
intake to certain goals.
If you're keeping track of your food intake, you'll probably want to know how your nutrient intake compares against certain goals you've set for yourself. For instance, you might decide you want to take in 65 grams of fat every day, or 2800 calories a day. You can tell Pantry what your goals are and it will help you compare certain foods, or all your food intake if you wish, against those goals.
In addition, the master in Pantry
has dozens of nutrients. Some of them, such as
Calories or Vitamin
A, are quite familiar. Others, such as
18:0, probably don't interest you
unless you're a scientist. Using nutrient lists, you decide
which nutrients appear in your
nuts reports, and the order
in which they appear.
As the name suggests, a nutrient list includes
multiple nutrients, in a specific order. Each
nutrient is specified using both its name and its
units: for example, Protein
and g, or
Calories and
kcal. When Pantry prints a
nuts report, it prints only
the nutrients included in the nutrient list.
In addition, each nutrient in the nutrient list
optionally has a goal
associated with it. For exaample, if you wish to
consume 2800 calories a day, you can set the
goal for calories to 2800. If you do not
specify a goal, but you include a nutrient
in a nutrient list, pantry will
still print the nutrient in
nuts reports. If you don't
want a nutrient shown in your
nuts reports, then do not
include the nutrient in your nutrient list. We are
getting ahead of ourselves a bit, though. Later we
will discuss how you can define your own nutrient lists. For now, though, you are stuck with the
nutrient lists that are included with Pantry:
Nutrient lists included with Pantry
facts
This nutrient list mimics the USA
"Nutrition Facts" panel; that
is, it shows nutrients in the same order
as they appear on those labels, and the
nutrient goals are identical to the FDA
Daily Values. One of the nutrients that
appears on the "Nutrition
Facts" panel,
Sugars, has no
FDA Daily Value, so there is no goal for
this nutrient.
all
Shows every possible nutrient. It does not, however, include any nutrient goals.
short
Shows only
Calories,
Total Fat,
Total
Carbohydrate, and
Protein. As with
all, this
nutrient list does not include any nutrient
goals.
dv
Includes, in alphabetical order by nutrient name, every nutrient for which there is an FDA Daily Value; the goals are the respective Daily Values.
As you've seen, the nuts report
has four columns. The first two columns show the
nutrient name and the amount of the nutrient,
respectively. The third column shows the nutrient's
percentage of the any goal that has been set for
this nutrient in the nutrient list. The fourth column
shows this nutrient's percentage of the total
amount of this nutrient for the buffer.
By default, Pantry uses the
facts nutrient list.
Therefore, in the next example, we see that 100
grams of bananas has 89 calories. The
facts nutrient list has a goal
of 2000 calories, the same amount used for the
"Nutrition Facts" labels. Therefore, the
report shows four percent in the third column. Other
nutrients show similar results, except for
Sugars. This shows
NG, for No Goal. This is
because although the "Nutrition Facts"
panel shows Sugars, there is
no FDA Daily Value for this nutrient. Accordingly,
the facts nutrient list has no
goal for this nutrient either.
Because there is only one food in the buffer,
every value except one in the last column is 100
percent. The value for Cholesterol is
NA because the buffer has
no cholesterol.
Example 2.14. The facts nutrient list
with 100 grams of bananas
$pantry --name "Bananas, raw" --print traits-nuts masterBananas, raw Group: Fruits and Fruit Juices Refuse: 36 percent Skin 100 g (100g) Nutrient Amount %G %TOT ------------------------------------------------------- Calories 89 kcal 4 100 Total Fat 0 g 1 100 Saturated Fat 0 g 1 100 Cholesterol 0 mg 0 0 Sodium 1 mg 0 100 Total Carbohydrate 23 g 8 100 Dietary Fiber 3 g 10 100 Sugars 12 g NA 100 Protein 1 g 2 100 Vitamin A 64 IU 1 100 Vitamin C 9 mg 14 100 Calcium 5 mg 0 100 Iron 0 mg 1 100
By default, Pantry uses the
facts nutrient list when
printing reports. You may specify a different
nutrient list with the
--nutrient-list option.
In the next example, the third column always shows
NG because the
short nutrient list includes
no goals.
Example 2.15. Specifying a nutrient list
$pantry --name "Bananas, raw" --print traits-nuts --nutrient- \>list short masterBananas, raw Group: Fruits and Fruit Juices Refuse: 36 percent Skin 100 g (100g) Nutrient Amount %G %TOT ------------------------------------------------------- Calories 89 kcal NA 100 Total Fat 0 g NA 100 Total Carbohydrate 23 g NA 100 Protein 1 g NA 100
So far, all the reports you have seen print one report
for each food. For instance, the
names report prints the name of
each food in the buffer, and the
nuts report prints one
nuts report for each food in the
buffer.
Sometimes you will want to know information about an
entire buffer, rather than about each food in the
buffer. Two reports provide information about the
entire buffer: sum and
groups.
The sum report prints
information about the sum of all nutrients of every
food in the buffer. Like
nuts reports, it uses
nutrient lists to determine which nutrients appear in
the report and which goals to use. It looks almost
identical to the nuts report,
with one difference: it has only three columns,
rather than four. The first column shows the
nutrient name; the second shows the nutrient amount;
and the third shows the amount's percentage of a
goal defined in the nutrient list.
As with the reports we discussed earlier, you may
combine summary reports with other reports, as the
next example demonstrates by combining a
traits report and a
sum report. When you combine
summary reports and food reports, the summary
reports are always shown last.
Example 2.16. Using the sum
report
$pantry --name Bananas --print traits-blank-sum masterCereals ready-to-eat, KELLOGG'S, CORN FLAKES With Real Bananas Group: Breakfast Cereals 100 g (100g) Bananas, dehydrated, or banana powder Group: Fruits and Fruit Juices 100 g (100g) Bananas, raw Group: Fruits and Fruit Juices Refuse: 36 percent Skin 100 g (100g) SUM: Nutrient Amount %G ----------------------------------------------------- Calories 852 kcal 43 Total Fat 11 g 17 Saturated Fat 8 g 42 Cholesterol 0 mg 0 Sodium 456 mg 19 Total Carbohydrate 195 g 65 Dietary Fiber 15 g 60 Sugars 85 g NA Protein 8 g 16 Vitamin A 1983 IU 40 Vitamin C 43 mg 71 Calcium 56 mg 6 Iron 7 mg 41
As with nuts reports, you use
nutrient lists to determine which nutrients are shown
in the sum report, and what
the goals are.
Example 2.17. Using the --nutrient-list
option with the sum
report
$pantry --name Bananas --print traits-blank-sum --nutrient-list short \>masterCereals ready-to-eat, KELLOGG'S, CORN FLAKES With Real Bananas Group: Breakfast Cereals 100 g (100g) Bananas, dehydrated, or banana powder Group: Fruits and Fruit Juices 100 g (100g) Bananas, raw Group: Fruits and Fruit Juices Refuse: 36 percent Skin 100 g (100g) SUM: Nutrient Amount %G ----------------------------------------------------- Calories 852 kcal NA Total Fat 11 g NA Total Carbohydrate 195 g NA Protein 8 g NA
The other summary report is the
groups report. It prints a
list of all the groups in the buffer, the number of
foods in each, and the total number of foods and
groups. For instance, you can run the following
example to see how many groupsa and foods are in the
master file. Remember that if
you do not specify any search options,
pantry copies all foods from the
files you specify into the buffer, which is why this
example shows you all the groups in the
master file.
Example 2.18. How many groups are in the
master file?
$pantry --print groups masterGroup No. of Foods ------------------------------------------------------------ Baby Foods 289 Baked Products 488 Beef Products 783 Beverages 266 Breakfast Cereals 427 Cereal Grains and Pasta 169 Dairy and Egg Products 216 Ethnic Foods 132 Fast Foods 310 Fats and Oils 239 Finfish and Shellfish Products 255 Fruits and Fruit Juices 314 Lamb, Veal, and Game Products 343 Legumes and Legume Products 234 Meals, Entrees, and Sidedishes 99 Nut and Seed Products 128 Pork Products 294 Poultry Products 346 Sausages and Luncheon Meats 232 Snacks 131 Soups, Sauces, and Gravies 399 Spices and Herbs 60 Sweets 351 Vegetables and Vegetable Products 789 ------------------------------------------------------------ 7294 foods total 24 groups total
Pantry would not be very useful if you could only
search the master for its contents
and print results from it. Fortunately, Pantry makes it
very easy for you to change the traits of foods.
When you run pantry with the
search options we discussed above,
pantry first searches the files you
specified for foods with the traits you specified with
your options. pantry then changes
the resulting foods to the traits you specify, as we
will discuss next. For instance, in the next example we
change the date trait of a raw
banana. However, as the example also shows, the change
is only temporary. Only the food in the buffer is
changed, and the food in the buffer is a copy of the
food in the master file. Later we
will learn how to save the new foods that you make.
Example 2.19. Changing foods
$pantry --name "Bananas, raw" --print traits masterBananas, raw Group: Fruits and Fruit Juices Refuse: 36 percent Skin 100 g (100g)
$pantry --name "Bananas, raw" --c-date "2007-05-06" \>--print traits masterBananas, raw Group: Fruits and Fruit Juices Date: 2007-05-06 Refuse: 36 percent Skin 100 g (100g)
$pantry --name "Bananas, raw" --print traits masterBananas, raw Group: Fruits and Fruit Juices Refuse: 36 percent Skin 100 g (100g)
There are eight options you use to change food traits. Each takes an argument to indicate what you would like to change the trait to:
--c-name or
-N
--c-group or
-G
--c-date or
-D
--c-meal or
-M
--c-comment or
-C
--c-unit or
-U
--c-qty or
-Q
--c-order or
-O
Changing the name,
group, date,
meal, and comment
traits is easy. You can change these to any string that
you wish, including a zero-length string. This gives you
a great deal of flexibility. The
option trait need not be set to a
"official" food group. The
date trait does not need to respect
any particular date format--indeed, strictly speaking,
it need not be any date at all!
Only two traits are not this flexible. As with the
other traits, Pantry stores the qty
trait as a string, but it is converted internally to a
number as needed, so the value of this trait must be
something that can be converted. It can be an integer, a
floating-point number, or even a fraction or mixed
number. Entering zero does not
delete foods; later we'll discuss how to delete foods.
The other inflexible trait is the
unit trait. This trait must be equal
to one of the available units for each particular food.
The argument that the --c-unit takes is
actually a regular expression. pantry
searches the food's available units for a single unit
matching that regular expression.
Example 2.20. Changing the unit trait
$pantry --name "Bananas, raw" --c-date "May 7" \>--c-qty 2 --c-unit medium --print traits-nuts masterBananas, raw Group: Fruits and Fruit Juices Date: May 7 Refuse: 36 percent Skin 2 medium (7" to 7-7/8" long) (236g) Nutrient Amount %G %TOT ------------------------------------------------------- Calories 210 kcal 11 100 Total Fat 1 g 1 100 Saturated Fat 0 g 1 100 Cholesterol 0 mg 0 0 Sodium 2 mg 0 100 Total Carbohydrate 54 g 18 100 Dietary Fiber 6 g 25 100 Sugars 29 g NA 100 Protein 3 g 5 100 Vitamin A 151 IU 3 100 Vitamin C 21 mg 34 100 Calcium 12 mg 1 100 Iron 1 mg 3 100
If the regular expression you enter as an argument
for --c-unit matches more than one of a
food's available units, pantry will
give you a warning message. pantry
will not include the food (either changed or unchanged)
in the search results; therefore, the food will not be
printed in any reports you may have asked for using the
--print option. However, Pantry will
still include in the search results other foods that it
did change. In the next example, the food
Bananas, raw cannot have its
units changed, because the search string
cup matches more than one of the
food's available units. However, the food
Bananas, dehydrated, or banana
powder is included in the search results
because its unit was successfully changed.
Example 2.21. Errors when changing the unit trait
$pantry --name "Bananas," --print traits-units masterBananas, dehydrated, or banana powder Group: Fruits and Fruit Juices 100 g (100g) cup tbsp Bananas, raw Group: Fruits and Fruit Juices Refuse: 36 percent Skin 100 g (100g) cup, mashed large (8" to 8-7/8" long) medium (7" to 7-7/8" long) extra small (less than 6" long) small (6" to 6-7/8" long) NLEA serving cup, sliced extra large (9" or longer)
$pantry --name "Bananas," --c-unit cup --print traits-units \>master========== pantry-dev: warning: food Bananas, raw will not be copied into the buffer. Failed to set units using pattern cup Matches: cup, mashed cup, sliced ========== Bananas, dehydrated, or banana powder Group: Fruits and Fruit Juices 100 cup (10000g) cup tbsp
One nicety is that you can use fractions and mixed
numbers for the qty trait:
Example 2.22. qty may be a fraction or mixed
number
$pantry --name "Bananas, raw" --c-qty "1/2" \>--c-unit medium --print traits-nuts masterBananas, raw Group: Fruits and Fruit Juices Refuse: 36 percent Skin 1/2 medium (7" to 7-7/8" long) (59g) Nutrient Amount %G %TOT ------------------------------------------------------- Calories 53 kcal 3 100 Total Fat 0 g 0 100 Saturated Fat 0 g 0 100 Cholesterol 0 mg 0 0 Sodium 1 mg 0 100 Total Carbohydrate 13 g 4 100 Dietary Fiber 2 g 6 100 Sugars 7 g NA 100 Protein 1 g 1 100 Vitamin A 38 IU 1 100 Vitamin C 5 mg 9 100 Calcium 3 mg 0 100 Iron 0 mg 1 100
$pantry --name "Bananas, raw" --c-qty "2 1/2" \>--c-unit medium --print traits-nuts masterBananas, raw Group: Fruits and Fruit Juices Refuse: 36 percent Skin 2 1/2 medium (7" to 7-7/8" long) (295g) Nutrient Amount %G %TOT ------------------------------------------------------- Calories 263 kcal 13 100 Total Fat 1 g 1 100 Saturated Fat 0 g 2 100 Cholesterol 0 mg 0 0 Sodium 3 mg 0 100 Total Carbohydrate 67 g 22 100 Dietary Fiber 8 g 31 100 Sugars 36 g NA 100 Protein 3 g 6 100 Vitamin A 189 IU 4 100 Vitamin C 26 mg 43 100 Calcium 15 mg 1 100 Iron 1 mg 4 100
You can use fractions or mixed numbers anywhere that Pantry expects to get a number. That includes all command-line options as well as within XML files, which we will discuss later.
You'll probably want to store the new foods you make.
You'll usually do this using the --add
or -a option. This option takes a
single FILENAME argument.
FILENAME can be almost any
name you want. For now, though, it should not end in
.xml,
.zip, or
.txt--we'll learn about what these
extensions do later. If
FILENAME does not already
exist, pantry will create it for you;
if the file already exists, the foods returned from your
search will be added to the file.
Two identical foods cannot exist in a single file. Two
foods are identical if all their traits are identical.
When you add a food to a file and there is already an
identical food in the file, Pantry will alter the
comment trait of the food you are adding by appending
(Copy 1), (Copy
2), etc.
Example 2.23. Using the --add option
$pantry --name "Bananas, raw" --add newfile --print traits \>masterBananas, raw Group: Fruits and Fruit Juices Refuse: 36 percent Skin 100 g (100g)
$pantry --print traits newfileBananas, raw Group: Fruits and Fruit Juices Refuse: 36 percent Skin 100 g (100g)
Another way to store the changes you make is
by using the
--edit option. --edit
searches for foods and makes changes that you specify.
Unlike --add, --edit
does not add the changed foods to a new file; instead,
it changes already existing foods, in the same file.
Example 2.24. Using the --edit option
$pantry --name "Bananas, raw" --c-name "Bananas, big \>yellow" --edit --print traits masterBananas, big yellow Group: Fruits and Fruit Juices Refuse: 36 percent Skin 100 g (100g)
$pantry --name Bananas --print traits-blank masterCereals ready-to-eat, KELLOGG'S, CORN FLAKES With Real Bananas Group: Breakfast Cereals 100 g (100g) Bananas, dehydrated, or banana powder Group: Fruits and Fruit Juices 100 g (100g) Bananas, big yellow Group: Fruits and Fruit Juices Refuse: 36 percent Skin 100 g (100g)
Finally, you may delete foods from the original files
with the --delete option.
Example 2.25. Using the --delete option
$pantry --name "Bananas, big yellow" --print traits --delete \>masterBananas, big yellow Group: Fruits and Fruit Juices Refuse: 36 percent Skin 100 g (100g)
$pantry --name "Bananas, big yellow" --print traits master
[3] You'll notice if you run the Unix program file on a Pantry native file, it is most likely a Berkeley DB file. Unix geeks will cringe at the fact that this file is not plain text.
[4] Most food databases that you will find anywhere, such as the one at NutritionData.com, are derived from the same USDA database.
[5] Regular expression gurus will appreciate knowing that Pantry uses Perl-compatible regular expressions. Links from this page will help give you an idea of what this means. If you are familiar with the Unix command-line utilities grep and egrep, the regular expressions used in Pantry are most similar to those used in egrep.
[6] An easy solution in this example would have been to use single quotes, but due to idiosyncracies in the scripts that automatically build the examples for the documentation, all the examples in the user guide use double quotes instead.
Table of Contents
Now that you know all the basic Pantry options, you're ready to combine them and put them to use! This chapter will show you how.
Often you will wish to know the nutrient makeup of a
particular food. Suppose for example that you want to know how
many calories are in a fresh apple. You figure that
master already has such a food, but
you don't know exactly what it would be. So first you
search for apple to see what comes
up.
Example 3.1. Searching for apples
$pantry --ignore-case --name apple --print names masterBabyfood, cereal, oatmeal, with applesauce and bananas, junior HEALTHY CHOICE Traditional Meat Loaf w/Brown Sauce, Mashed Potatoes, Green Beans and Apple Praline Crisp, frozen meal Pie, apple, commercially prepared, enriched flour Apples, dried, sulfured, stewed, without added sugar Babyfood, dessert, fruit pudding, pineapple, strained Cereals ready-to-eat, GENERAL MILLS, OATMEAL CRISP, APPLE CINNAMON Cereals ready-to-eat, QUAKER, QUAKER APPLE ZAPS VERYFINE APPLE QUENCHERS Apple Raspberry Cherry Juice Cocktail, ready-to-drink Cereals, QUAKER, Instant Oatmeal, NUTRITION FOR WOMEN, Apple Spice, dry English muffins, raisin-cinnamon (includes apple-cinnamon) Babyfood, cereal, rice, with applesauce and bananas, strained Babyfood, cereal, oatmeal, with applesauce and bananas, strained Pineapple, raw, extra sweet variety Cereals ready-to-eat, KELLOGG, KELLOGG'S APPLE CINNAMON SQUARES MINI-WHEATS Custard-apple, (bullock's-heart), raw [ trimmed to save space ]
It turns out that this search returns 163 results.
There must be a way to narrow this down. Well, many
foods will have the word "Apple" in their name,
including many foods that are not even fruits (desserts,
for example). A good way to narrow your results is to
use the --group option:
Example 3.2. Searching for apples, with the
--group option
$pantry --ignore-case --name apple --group fruits --print names masterCustard-apple, (bullock's-heart), raw Pineapple juice, frozen concentrate, unsweetened, undiluted Apples, dried, sulfured, stewed, without added sugar Apple juice, frozen concentrate, unsweetened, undiluted, with added ascorbic acid Fruit salad, (peach and pear and apricot and pineapple and cherry), canned, light syrup, solids and liquids Pineapple juice, canned, unsweetened, without added ascorbic acid Apple juice, frozen concentrate, unsweetened, diluted with 3 volume water without added ascorbic acid Fruit salad, (peach and pear and apricot and pineapple and cherry), canned, extra heavy syrup, solids and liquids Pineapple, canned, water pack, solids and liquids Pineapple, raw, traditional varieties Apple juice, frozen concentrate, unsweetened, undiluted, without added ascorbic acid Pineapple, canned, light syrup pack, solids and liquids Pineapple juice, canned, unsweetened, with added ascorbic acid Apples, dehydrated (low moisture), sulfured, uncooked Pineapple, raw, extra sweet variety [ trimmed to save space ]
That is still a lot more than we are looking for,
including a bunch of things that merely have
"Apple" in their name. What if we use a
regular expression to limit the results only to foods
whose name trait begins with
apple?
Example 3.3. Searching for apples using a regular expression
$pantry --ignore-case --name ^apple --group fruits --print names masterApples, frozen, unsweetened, heated Apple juice, frozen concentrate, unsweetened, undiluted, with added ascorbic acid Apple juice, canned or bottled, unsweetened, with added ascorbic acid Apple juice, frozen concentrate, unsweetened, undiluted, without added ascorbic acid Apple juice, frozen concentrate, unsweetened, diluted with 3 volume water without added ascorbic acid Apples, dehydrated (low moisture), sulfured, uncooked Apples, raw, without skin, cooked, boiled Applesauce, canned, sweetened, with salt Apples, canned, sweetened, sliced, drained, unheated Apples, dried, sulfured, stewed, with added sugar Apples, raw, without skin, cooked, microwave Applesauce, canned, sweetened, without salt Applesauce, canned, unsweetened, with added ascorbic acid Apples, frozen, unsweetened, unheated Apples, dried, sulfured, uncooked Apple juice, canned or bottled, unsweetened, without added ascorbic acid Apples, raw, with skin Apples, raw, without skin Apples, dried, sulfured, stewed, without added sugar Apples, canned, sweetened, sliced, drained, heated Apple juice, frozen concentrate, unsweetened, diluted with 3 volume water, with added ascorbic acid Applesauce, canned, unsweetened, without added ascorbic acid Apples, dehydrated (low moisture), sulfured, stewed
That buffer is manageable enough to scan to see
what we are looking for. Looks like Apples,
raw, with skin is what we are looking
for. We want to know how many calories are in an apple.
To do that, first we need to see what units are
available for Apples, raw, with
skin:
Example 3.4. Available units for an apple
$pantry --name "Apples, raw, with skin" --print names-units \>masterApples, raw, with skin cup, quartered or chopped large (3-1/4" dia) (approx 2 per lb) NLEA serving medium (2-3/4" dia) (approx 3 per lb) cup slices small (2-1/2" dia) (approx 4 per lb)
Notice how we combined the
names and
units reports rather than
using just a units report. This
is a good idea because otherwise, your report might
actually contain results for more than one food, but you
would not know this if you used only a
units report.
Finally, we use the change options to take the apple
from the master file, change it to
the characteristics we're interested in, and print a
report:
Example 3.5. How many calories are in an apple?
$pantry --name "Apples, raw, with skin" --c-unit large \>--c-qty 1 --print traits-nuts masterApples, raw, with skin Group: Fruits and Fruit Juices Refuse: 8 percent Core and stem 1 large (3-1/4" dia) (approx 2 per lb) (212g) Nutrient Amount %G %TOT ------------------------------------------------------- Calories 110 kcal 6 100 Total Fat 0 g 1 100 Saturated Fat 0 g 0 100 Cholesterol 0 mg 0 0 Sodium 2 mg 0 100 Total Carbohydrate 29 g 10 100 Dietary Fiber 5 g 20 100 Sugars 22 g NA 100 Protein 1 g 1 100 Vitamin A 114 IU 2 100 Vitamin C 10 mg 16 100 Calcium 13 mg 1 100 Iron 0 mg 1 100
Suppose that on May 8 you want to keep track of
everything you eat. Following our previous example, you
locate the foods you need in
master, and then you add them
to a file as you'll see in the following example.
You print the traits of the foods as you add them to
make sure that you're adding the right foods.
Example 3.6. Adding entries to a diary
$pantry --ignore-case --name "apples, raw, with skin" --c-qty \>>\>traits --add diary masterApples, raw, with skin Group: Fruits and Fruit Juices Date: May 8 Meal: Breakfast Refuse: 8 percent Core and stem 1 large (3-1/4" dia) (approx 2 per lb) (212g)
$pantry --ignore-case --name "kellogg's corn flakes" \>>\>--print traits --add diary masterCereals ready-to-eat, KELLOGG, KELLOGG'S Corn Flakes Group: Breakfast Cereals Date: May 8 Meal: Breakfast 1 cup (1 NLEA serving) (28g)
$pantry --ignore-case --name "milk, reduced fat, fluid, 2% \>>\>"May 8" --c-meal Breakfast --print traits --add diary masterMilk, reduced fat, fluid, 2% milkfat, with added vitamin A Group: Dairy and Egg Products Date: May 8 Meal: Breakfast 1 cup (244g)
$pantry --ignore-case --name "carrots, raw" --c-qty 1 \>>\>traits --add diary masterCarrots, raw Group: Vegetables and Vegetable Products Date: May 8 Meal: Lunch Refuse: 11 percent Crown, tops and scrapings 1 large (7-1/4" to 8-/1/2" long) (72g)
$pantry --ignore-case --name "chicken.*wing, meat and skin, \>>\>3 --c-meal Lunch --print traits --add diary masterChicken, broilers or fryers, wing, meat and skin, cooked, roasted Group: Poultry Products Date: May 8 Meal: Lunch Refuse: 48 percent Bone 3 wing, bone removed (102g)
$pantry --ignore-case --name "ice creams, chocolate, rich" \>>\>"Lunch" --print traits --add diary masterIce creams, chocolate, rich Group: Sweets Date: May 8 Meal: Lunch 1 cup (148g)
$pantry --ignore-case --name "mcdonald's, cheeseburger" \>>\>"Dinner" --print traits --add diary masterMcDONALD'S, Cheeseburger Group: Fast Foods Date: May 8 Meal: Dinner 1 item (119g)
$pantry --ignore-case --name "mcdonald's, french fries" \>>\>--print traits --add diary masterMcDONALD'S, French Fries Group: Fast Foods Date: May 8 Meal: Dinner 1 large serving (170g)
$pantry --ignore-case --name "popcorn, oil-popped, unsalted" \>>\>--print traits --add diary masterSnacks, popcorn, oil-popped, unsalted Group: Snacks Date: May 8 Meal: Dinner 2 oz (57g)
Now you want to know a little about what you ate:
Example 3.7. Printing nutrient reports about a diary
$pantry --print traits-nuts-blank diaryMilk, reduced fat, fluid, 2% milkfat, with added vitamin A Group: Dairy and Egg Products Date: May 8 Meal: Breakfast 1 cup (244g) Nutrient Amount %G %TOT ------------------------------------------------------- Calories 122 kcal 6 6 Total Fat 5 g 7 4 Saturated Fat 3 g 15 8 Cholesterol 20 mg 7 8 Sodium 100 mg 4 6 Total Carbohydrate 11 g 4 5 Dietary Fiber 0 g 0 0 Sugars 12 g NA 17 Protein 8 g 16 11 Vitamin A 461 IU 9 3 Vitamin C 0 mg 1 2 Calcium 285 mg 29 37 Iron 0 mg 0 0 McDONALD'S, French Fries Group: Fast Foods Date: May 8 Meal: Dinner 1 large serving (170g) Nutrient Amount %G %TOT ------------------------------------------------------- Calories 573 kcal 29 26 Total Fat 30 g 47 27 Saturated Fat 6 g 30 16 Cholesterol 0 mg 0 0 Sodium 330 mg 14 21 Total Carbohydrate 70 g 23 29 Dietary Fiber 7 g 28 30 Sugars 0 g NA 0 Protein 6 g 11 8 Vitamin A 0 IU 0 0 Vitamin C 8 mg 14 27 Calcium 27 mg 3 3 Iron 2 mg 10 10 Apples, raw, with skin Group: Fruits and Fruit Juices Date: May 8 Meal: Breakfast Refuse: 8 percent Core and stem 1 large (3-1/4" dia) (approx 2 per lb) (212g) Nutrient Amount %G %TOT ------------------------------------------------------- Calories 110 kcal 6 5 Total Fat 0 g 1 0 Saturated Fat 0 g 0 0 Cholesterol 0 mg 0 0 Sodium 2 mg 0 0 Total Carbohydrate 29 g 10 12 Dietary Fiber 5 g 20 22 Sugars 22 g NA 30 Protein 1 g 1 1 Vitamin A 114 IU 2 1 Vitamin C 10 mg 16 32 Calcium 13 mg 1 2 Iron 0 mg 1 1 Cereals ready-to-eat, KELLOGG, KELLOGG'S Corn Flakes Group: Breakfast Cereals Date: May 8 Meal: Breakfast 1 cup (1 NLEA serving) (28g) Nutrient Amount %G %TOT ------------------------------------------------------- Calories 101 kcal 5 5 Total Fat 0 g 0 0 Saturated Fat 0 g 0 0 Cholesterol 0 mg 0 0 Sodium 202 mg 8 13 Total Carbohydrate 24 g 8 10 Dietary Fiber 1 g 3 3 Sugars 3 g NA 4 Protein 2 g 4 3 Vitamin A 501 IU 10 3 Vitamin C 6 mg 10 20 Calcium 1 mg 0 0 Iron 8 mg 45 46 Snacks, popcorn, oil-popped, unsalted Group: Snacks Date: May 8 Meal: Dinner 2 oz (57g) Nutrient Amount %G %TOT ------------------------------------------------------- Calories 295 kcal 15 13 Total Fat 16 g 25 14 Saturated Fat 3 g 14 7 Cholesterol 0 mg 0 0 Sodium 2 mg 0 0 Total Carbohydrate 33 g 11 14 Dietary Fiber 6 g 23 25 Sugars 0 g NA 0 Protein 5 g 10 7 Vitamin A 87 IU 2 1 Vitamin C 0 mg 0 1 Calcium 6 mg 1 1 Iron 2 mg 9 9 Chicken, broilers or fryers, wing, meat and skin, cooked, roasted Group: Poultry Products Date: May 8 Meal: Lunch Refuse: 48 percent Bone 3 wing, bone removed (102g) Nutrient Amount %G %TOT ------------------------------------------------------- Calories 296 kcal 15 13 Total Fat 20 g 31 18 Saturated Fat 6 g 28 15 Cholesterol 86 mg 29 36 Sodium 84 mg 3 5 Total Carbohydrate 0 g 0 0 Dietary Fiber 0 g 0 0 Sugars 0 g 0 0 Protein 27 g 55 38 Vitamin A 161 IU 3 1 Vitamin C 0 mg 0 0 Calcium 15 mg 2 2 Iron 1 mg 7 7 Ice creams, chocolate, rich Group: Sweets Date: May 8 Meal: Lunch 1 cup (148g) Nutrient Amount %G %TOT ------------------------------------------------------- Calories 377 kcal 19 17 Total Fat 25 g 39 23 Saturated Fat 15 g 77 40 Cholesterol 89 mg 30 38 Sodium 84 mg 4 5 Total Carbohydrate 31 g 10 13 Dietary Fiber 1 g 5 6 Sugars 26 g NA 35 Protein 7 g 14 10 Vitamin A 1055 IU 21 7 Vitamin C 1 mg 1 2 Calcium 210 mg 21 27 Iron 2 mg 8 9 McDONALD'S, Cheeseburger Group: Fast Foods Date: May 8 Meal: Dinner 1 item (119g) Nutrient Amount %G %TOT ------------------------------------------------------- Calories 313 kcal 16 14 Total Fat 14 g 22 13 Saturated Fat 5 g 26 14 Cholesterol 42 mg 14 18 Sodium 745 mg 31 47 Total Carbohydrate 33 g 11 14 Dietary Fiber 1 g 5 6 Sugars 7 g NA 10 Protein 15 g 31 21 Vitamin A 289 IU 6 2 Vitamin C 1 mg 1 2 Calcium 199 mg 20 25 Iron 3 mg 16 16 Carrots, raw Group: Vegetables and Vegetable Products Date: May 8 Meal: Lunch Refuse: 11 percent Crown, tops and scrapings 1 large (7-1/4" to 8-/1/2" long) (72g) Nutrient Amount %G %TOT ------------------------------------------------------- Calories 30 kcal 1 1 Total Fat 0 g 0 0 Saturated Fat 0 g 0 0 Cholesterol 0 mg 0 0 Sodium 50 mg 2 3 Total Carbohydrate 7 g 2 3 Dietary Fiber 2 g 8 9 Sugars 3 g NA 5 Protein 1 g 1 1 Vitamin A 12104 IU 242 82 Vitamin C 4 mg 7 14 Calcium 24 mg 2 3 Iron 0 mg 1 1
You also want to know what all this adds up to:
Example 3.8. Getting totals about a diary
$pantry --print sum diarySUM: Nutrient Amount %G ----------------------------------------------------- Calories 2217 kcal 111 Total Fat 111 g 170 Saturated Fat 38 g 191 Cholesterol 236 mg 79 Sodium 1599 mg 67 Total Carbohydrate 239 g 80 Dietary Fiber 23 g 92 Sugars 74 g NA Protein 72 g 144 Vitamin A 14774 IU 295 Vitamin C 31 mg 51 Calcium 780 mg 78 Iron 18 mg 98
If your diary file contained foods for several days,
you would have used --date to limit
the search results to just today.
If this seemed to require a lot of typing, that's because it did require a lot of typing. Later we'll learn some ways you can speed this process up.
As you've seen from our numerous examples, sometimes the
names of foods can get fairly long. Furthermore, because
the good people at USDA are so industrious, a search for
something seemingly simple in the
master file can turn up numerous
results. For instance, pantry --ignore-case
--name milk --group dairy --print names
master returns 64 foods. You probably
don't want to type Milk,
reduced fat, fluid, 2% milkfat, with added vitamin
A every time you have some milk.
One excellent solution for this problem is to keep
copies of foods you eat frequently in a separate,
smaller file--perhaps quick. If you
know that there is only one food in your
quick file that contains
milk, you can just search for
pantry --ignore-case --name milk
quick instead. You can even change the
names of foods using --c-name, so
Milk, reduced fat, 2% milkfat, with added
vitamin A can become simply
Milk 2% if that's what you want.
To make this really easy, change the foods in
your quick so that the quantity
and unit traits are already set to those you use
most frequently.
You could also make changes to the
master file itself, but I prefer to
leave this file untouched and store my frequently-eaten
foods in a different file.
If you want to keep track of what you eat, Pantry is
flexible in where you store the foods you eat. You
can choose to keep all the foods you ever eat in a
single file. However, to make any sense of such a
file, you may find that you have to enter
date and meal
traits for every food you enter. As we've seen, that
can require a lot of typing.
But remember, Pantry is flexible. You can instead decide to keep a separate file for each day, or a separate file for each meal. You can of course sort these into directories however you see fit. Remember that pantry is flexible and can search and print results from more than one file at a time.
Pantry's commands can get verbose, as you have seen. Therefore it can be quite helpful to devise scripts or shell functions of your own that will help you cut the amount of typing you must do. We'll see how to do that later.
Table of Contents
Now that you have seen some practical examples of how to use Pantry, there will be even more information that you will find useful in this chapter.
As you have seen before, Pantry does not sort foods when it stores them. This allows Pantry to store and retrieve foods very quickly, but it also means that your foods come out in a big jumble:
Example 4.1. Pantry does not sort foods
$pantry --date "May 8" --print traits-blank diaryMilk, reduced fat, fluid, 2% milkfat, with added vitamin A Group: Dairy and Egg Products Date: May 8 Meal: Breakfast 1 cup (244g) McDONALD'S, French Fries Group: Fast Foods Date: May 8 Meal: Dinner 1 large serving (170g) Apples, raw, with skin Group: Fruits and Fruit Juices Date: May 8 Meal: Breakfast Refuse: 8 percent Core and stem 1 large (3-1/4" dia) (approx 2 per lb) (212g) Cereals ready-to-eat, KELLOGG, KELLOGG'S Corn Flakes Group: Breakfast Cereals Date: May 8 Meal: Breakfast 1 cup (1 NLEA serving) (28g) Snacks, popcorn, oil-popped, unsalted Group: Snacks Date: May 8 Meal: Dinner 2 oz (57g) Chicken, broilers or fryers, wing, meat and skin, cooked, roasted Group: Poultry Products Date: May 8 Meal: Lunch Refuse: 48 percent Bone 3 wing, bone removed (102g) Ice creams, chocolate, rich Group: Sweets Date: May 8 Meal: Lunch 1 cup (148g) McDONALD'S, Cheeseburger Group: Fast Foods Date: May 8 Meal: Dinner 1 item (119g) Carrots, raw Group: Vegetables and Vegetable Products Date: May 8 Meal: Lunch Refuse: 11 percent Crown, tops and scrapings 1 large (7-1/4" to 8-/1/2" long) (72g)
This is of course a bit hard to comprehend. Of course,
I wouldn't be bringing this up if there weren't a
solution at hand: the --sort option.
Use it and Pantry will sort the buffer before it is
printed. The --sort option takes a
single argument to indicate how you want your foods
sorted. This argument consists of a series of letters,
with each letter being the first letter of the trait you
wish to use as a sorting key. For example, to sort by
meal and then by
name, use --sort mn.
Lower-case letters sort in ascending order, while
upper-case letters sort in descending order. So, to sort
the meal names in ascending order and then the food
names in descending order, use --sort
mN:
Example 4.2. Using the --sort option
$pantry --date "May 8" --sort mN --print traits-blank diaryMilk, reduced fat, fluid, 2% milkfat, with added vitamin A Group: Dairy and Egg Products Date: May 8 Meal: Breakfast 1 cup (244g) Cereals ready-to-eat, KELLOGG, KELLOGG'S Corn Flakes Group: Breakfast Cereals Date: May 8 Meal: Breakfast 1 cup (1 NLEA serving) (28g) Apples, raw, with skin Group: Fruits and Fruit Juices Date: May 8 Meal: Breakfast Refuse: 8 percent Core and stem 1 large (3-1/4" dia) (approx 2 per lb) (212g) Snacks, popcorn, oil-popped, unsalted Group: Snacks Date: May 8 Meal: Dinner 2 oz (57g) McDONALD'S, French Fries Group: Fast Foods Date: May 8 Meal: Dinner 1 large serving (170g) McDONALD'S, Cheeseburger Group: Fast Foods Date: May 8 Meal: Dinner 1 item (119g) Ice creams, chocolate, rich Group: Sweets Date: May 8 Meal: Lunch 1 cup (148g) Chicken, broilers or fryers, wing, meat and skin, cooked, roasted Group: Poultry Products Date: May 8 Meal: Lunch Refuse: 48 percent Bone 3 wing, bone removed (102g) Carrots, raw Group: Vegetables and Vegetable Products Date: May 8 Meal: Lunch Refuse: 11 percent Crown, tops and scrapings 1 large (7-1/4" to 8-/1/2" long) (72g)
Remember that all traits in Pantry are strings,
including the date
pctRefuse, and qty
traits. These traits are sorted as strings rather than
as numbers or as dates. This can lead to unexpected
results. For example, sorting the strings
1, 2, and
10 will yield 1,
10, 2.
Similarly, when sorting dates, 7-1,
7-10, and 7-2 will
not yield the results you may expect. An easy fix for
this is to use leading zeroes; sorting
07-01, 07-02, and
07-10 will do what you expect.
As you can see above, the
meal traits are sorted in
alphabetical order, yielding
Breakfast, Dinner,
and Lunch. You can, however, sort
these into whatever order you wish, such as the more
logical Breakfast,
Lunch, and Dinner.
We'll find out how to do this when we talk about
configuring Pantry, later.
Finally, perhaps you want to be able to sort your
foods into any arbitrary order. The
order trait is useful for this
purpose. To sort foods into any order, just assign
appropriate order values for each
food (perhaps a,
b, c or
010, 020, and
030) and then use --sort
o. Pantry can even help you by assigning
values to the order trait
automatically, as we will see in the next section.
Often you will find that you enter foods into
Pantry in the same order in which you eat them. You
might find it handy to have Pantry show those foods
to you in the same order in which you entered them.
The --auto-order option is handy
for this.
When you add foods to a file and you have chosen
the --auto-order, Pantry will
automatically change the order
trait of the added foods. To find what the new
order trait should be, Pantry
first searches the file that the food is being added
to for other foods with values for the
date and meal
traits that are identical to the ones in the food
that is being added. Pantry then sorts these foods
in ascending order by their order
trait.
Pantry then checks to see if the highest food's
order trait matches the regular
expression ^[0-9]{4}$. Examples
of values for which this would be true include
0010,
2338, and
0100. Pantry then takes that
value, removes any leading zeroes, removes the last
digit, and increments the result by one. A trailing
zero is added to the result, and the result is
left-padded with zeroes if necessary in order to
make it four digits. Thus, if the previously highest
order trait was
0010, the resulting
order is
0020.
2338 yields a new order of
2340, and
0100 leads to
0110.
If the highest food's order
trait does not match the
regular expression ^[0-9]{4}$,
then the new food's order
trait is set to 0010.
As always, an example helps. We'll use the same foods as we did in a previous example, but let's say you ate the exact same thing one day later:
Example 4.3. Using --auto-order
$pantry --ignore-case --name "apples, raw, with skin" --c-qty \>>\>order --add diary master
$pantry --ignore-case --name "kellogg's corn flakes" \>>\>--auto-order --add diary master
$pantry --ignore-case --name "milk, reduced fat, fluid, 2% \>>\>"May 9" --c-meal Breakfast --auto-order --add diary master
$pantry --ignore-case --name "carrots, raw" --c-qty 1 \>>\>--add diary master
$pantry --ignore-case --name "Chicken, broilers or fryers, wing, \>>\>--c-unit wing --c-qty 3 --c-meal Lunch --auto-order --add diary master
$pantry --ignore-case --name "ice creams, chocolate, rich" \>>\>"Lunch" --auto-order --add diary master
$pantry --ignore-case --name "mcdonald's, cheeseburger" \>>\>"Dinner" --auto-order --add diary master
$pantry --ignore-case --name "mcdonald's, french fries" \>>\>--auto-order --add diary master
$pantry --ignore-case --name "popcorn, oil-popped, unsalted" \>>\>--c-meal Dinner --auto-order --add diary master
Now you can sort the foods by their
order traits:
Example 4.4. Using --sort with foods that have been automatically ordered
$pantry --date "May 9" --print traits-blank --sort dmo diaryApples, raw, with skin Group: Fruits and Fruit Juices Date: May 9 Meal: Breakfast Order: 0010 Refuse: 8 percent Core and stem 1 large (3-1/4" dia) (approx 2 per lb) (212g) Cereals ready-to-eat, KELLOGG, KELLOGG'S Corn Flakes Group: Breakfast Cereals Date: May 9 Meal: Breakfast Order: 0020 1 cup (1 NLEA serving) (28g) Milk, reduced fat, fluid, 2% milkfat, with added vitamin A Group: Dairy and Egg Products Date: May 9 Meal: Breakfast Order: 0030 1 cup (244g) McDONALD'S, Cheeseburger Group: Fast Foods Date: May 9 Meal: Dinner Order: 0010 1 item (119g) McDONALD'S, French Fries Group: Fast Foods Date: May 9 Meal: Dinner Order: 0020 1 large serving (170g) Snacks, popcorn, oil-popped, unsalted Group: Snacks Date: May 9 Meal: Dinner Order: 0030 2 1/2 oz (71g) Carrots, raw Group: Vegetables and Vegetable Products Date: May 9 Meal: Lunch Order: 0010 Refuse: 11 percent Crown, tops and scrapings 1 large (7-1/4" to 8-/1/2" long) (72g) Chicken, broilers or fryers, wing, meat and skin, cooked, roasted Group: Poultry Products Date: May 9 Meal: Lunch Order: 0020 Refuse: 48 percent Bone 3 wing, bone removed (102g) Ice creams, chocolate, rich Group: Sweets Date: May 9 Meal: Lunch Order: 0030 .5 cup (74g)
The results are a bit different if we set only
the date trait when we use
--auto-order:
Example 4.5. Using --auto-order with only
the date trait
changed
$pantry --ignore-case --name "apples, raw, with skin" --c-qty \>>\>master
$pantry --ignore-case --name "kellogg's corn flakes" \>>\>diary master
$pantry --ignore-case --name "milk, reduced fat, fluid, 2% \>>\>"May 10" --auto-order --add diary master
$pantry --ignore-case --name "carrots, raw" --c-qty 1 \>>\>master
$pantry --ignore-case --name "Chicken, broilers or fryers, wing, \>>\>--c-unit wing --c-qty 3 --auto-order --add diary master
$pantry --ignore-case --name "ice creams, chocolate, rich" \>>\>diary master
$pantry --ignore-case --name "mcdonald's, cheeseburger" \>>\>diary master
$pantry --ignore-case --name "mcdonald's, french fries" \>>\>--add diary master
$pantry --ignore-case --name "popcorn, oil-popped, unsalted" \>>\>diary master
$pantry --date "May 10" --print traits-blank --sort o diaryApples, raw, with skin Group: Fruits and Fruit Juices Date: May 10 Order: 0010 Refuse: 8 percent Core and stem 1 large (3-1/4" dia) (approx 2 per lb) (212g) Cereals ready-to-eat, KELLOGG, KELLOGG'S Corn Flakes Group: Breakfast Cereals Date: May 10 Order: 0020 1 cup (1 NLEA serving) (28g) Milk, reduced fat, fluid, 2% milkfat, with added vitamin A Group: Dairy and Egg Products Date: May 10 Order: 0030 1 cup (244g) Carrots, raw Group: Vegetables and Vegetable Products Date: May 10 Order: 0040 Refuse: 11 percent Crown, tops and scrapings 1 large (7-1/4" to 8-/1/2" long) (72g) Chicken, broilers or fryers, wing, meat and skin, cooked, roasted Group: Poultry Products Date: May 10 Order: 0050 Refuse: 48 percent Bone 3 wing, bone removed (102g) Ice creams, chocolate, rich Group: Sweets Date: May 10 Order: 0060 1 cup (148g) McDONALD'S, Cheeseburger Group: Fast Foods Date: May 10 Order: 0070 1 item (119g) McDONALD'S, French Fries Group: Fast Foods Date: May 10 Order: 0080 1 large serving (170g) Snacks, popcorn, oil-popped, unsalted Group: Snacks Date: May 10 Order: 0090 2 oz (57g)
You might complain that the previous examples took a lot of typing. We'll learn how you can cut down the amount of typing in a later section.
Internally, Pantry's nutrient amounts are recorded as amount of nutrient for a given amount of edible food. More specifically, Pantry tracks each of its foods by recording the amount of each nutrient per 100 grams of edible food. How Pantry converts from nutrient per 100 grams of edible food to the total amount of nutrient in your foods varies depending upon the unit of your food.
The units g,
oz, and lb
are available for every food. For foods using one of
these available units, it is simple for Pantry to
convert from nutrients per 100 grams to nutrients per
ounce or nutrients per pound.
Any of a food's other avaialble units are recorded in Pantry with their total grams of edible portion. Pantry then uses this gram weight and the amount of nutrient per 100 grams of edible portion to compute the total nutrients in your food.
An example will prove helpful. Let' take some apples:
Example 4.6. Traits and available units for an apple
$pantry --name "Apples, raw, with skin" --print names-units \>masterApples, raw, with skin cup, quartered or chopped large (3-1/4" dia) (approx 2 per lb) NLEA serving medium (2-3/4" dia) (approx 3 per lb) cup slices small (2-1/2" dia) (approx 4 per lb)
By now this looks familiar to you. This way, if you
eat a large apple, you change the unit of the food to
large (3-1/4" dia) (approx 2 per
lb). Pantry knows how many grams a large
apple weighs. To find out how many grams correspond to
each unit, use the measures
report, which shows the weight in grams of each measure:
Example 4.7. Using the measures
report
$pantry --name "Apples, raw, with skin" --print names- \>measures masterApples, raw, with skin cup, quartered or chopped (125g) lb (454g) g (1g) large (3-1/4" dia) (approx 2 per lb) (212g) oz (28g) NLEA serving (154g) medium (2-3/4" dia) (approx 3 per lb) (138g) cup slices (110g) small (2-1/2" dia) (approx 4 per lb) (106g)
The weights in grams correspond to the edible portion of the food. Thus, in this example, a typical large apple weighs 212 grams, without the inedible portions (such as the core).
But perhaps you eat an apple and you want to use the
g, oz, or
lb unit. This is especially
likely if, for example, you have a kitchen scale and you
wish to precisely measure the amount of all the food you
eat. If you wish to weigh your own apples rather than
using the approximations given in the available units,
you have a few options.
One option is to simply cut up the apple, cut out the core, and then weigh the resulting chunks. That is fine if you usually cut up your apples (as I do) but not so good if you do not want to chop up your apples all the time.
Another option is to weigh the entire apple, whole, and record that you ate (for example) a seven-ounce apple. The only problem with this is that the nutrient amounts in Pantry are for the edible portion of the food. Thus, if you do not account for the fact that a fraction of the apple is a core and a stem, you will overestimate how much apple you ate.[7] To compensate for this, you could weigh the entire apple, eat it, and then weigh the leftover core and stem. You would subtract the weight of the core and stem from the weight of the entire apple, and then figure that you ate the difference. That would get tedious.
A third option is to use the
--refuse option. It uses the
refuse trait to reduce your
food's quantity by the percentage of refuse. As you
saw in the example above, an apple is 8 percent refuse.
So, assuming you have an eight-ounce apple:[8]
Example 4.8. Using the --refuse
option
$pantry --name "Apples, raw, with skin" --c-qty 8 --c-unit oz \>--print traits-nuts --refuse masterApples, raw, with skin Group: Fruits and Fruit Juices Refuse: 8 percent Core and stem 7.36 oz (209g) Nutrient Amount %G %TOT ------------------------------------------------------- Calories 109 kcal 5 100 Total Fat 0 g 1 100 Saturated Fat 0 g 0 100 Cholesterol 0 mg 0 0 Sodium 2 mg 0 100 Total Carbohydrate 29 g 10 100 Dietary Fiber 5 g 20 100 Sugars 22 g NA 100 Protein 1 g 1 100 Vitamin A 113 IU 2 100 Vitamin C 10 mg 16 100 Calcium 13 mg 1 100 Iron 0 mg 1 100
As you can see, the --refuse option
reduces the quantity of the apple by eight percent. This
way, you can weigh the entire apple (including the core)
and still get a good estimate of which portion of the
apple was actually edible.
It only makes sense to use the
--refuse option when you are using the
g, oz, or
lb units. Every other unit in the
master file already accounts for
refuse--for example, with the apple, the large (3-1/4" dia) (approx 2 per
lb) already accounts for the eight
percent refuse.
When using the --refuse
option, every food in the buffer will have its quantity
reduced by its corresponding refuse percentage. This of
course does not affect foods with zero percent refuse.
If a food's refuse percentage is set to
None, pantry prints a warning
message but does not adjust the quantity of the food.
The Pantry configuration file is XML. If you know nothing about XML, the Wikipedia article is a good place to start.
In this section we'll walk through how to create your
own Pantry configuration file. The default name for this
file is ~/.pantryrc.xml. If you
want to use a different filename for your configuration
file, you may specify it by setting an environment
variable named PANTRYRC.
So, to get started open a text file named
~/.pantryrc.xml in your favorite
text editor. Every .pantryrc.xml
file contains the root element
pantry-config, so start by including
that in your .pantryrc.xml:
You can have pantry search
several directories for files that you are
searching. The concept is similar to the
PATH variable that shells use.
This way, you need not be in the same directory as
the files you are searching, and you will not need
to specify the entire path.
The search path feature works only for files that
you are searching for foods. It has no effect on the
--add option, for example; the
--add option will always assume its
argument is in the current directory, unless you
specify a pathname in the argument. The search path
works similarly to the same feature in shells: the
path is searched only if the filename does not
include a slash. If the filename does include a
slash, then only the appropriate directory is
searched for the file.
If you do not specify a search path, Pantry will search only the current directory for files.
To specify a search path, create one
path element for each directory
you wish to be in your path. Each element has a
single attribute, dir. As with
shells, you must specify the current directory if
you want pantry to include it
when searching. To specify the current directory,
use a single period.
The next example specifies two directories, the
current directory and the
/home/massysett/pantry
directory, for the search path.
Example 4.10. .pantryrc.xml with
search path specified
<pantryrc> <path dir='.' /> <path dir='/home/massysett/pantry' /> </pantryrc>
Using your .pantryrc.xml,
you may specify your own nutrient lists. You may also
specify which nutrient list is the default--that is,
which nutrient list Pantry uses when you do not use
the --nutrient-list option.
The default nutrient list is the one Pantry
uses when you do not specify a nutrient list
using the --nutrient-list
option. The default nutrient list can be one of
the nutrient lists included with Pantry, or it
can be a nutrient list you create yourself. You
can set a default nutrient list even if you do
not define any of your own nutrient lists, but of
course then you will need to choose only from
one of the nutrient lists included with Pantry.
If you do not specify a default nutrient list,
Pantry will use facts.
To specify a default nutrient list, add a
default-nutrient-list element. This
element has a single attribute,
name, which specifies the
name of the default nutrient list. This name is
case-sensitive. In the following example, the
default nutrient list is
facts.
Example 4.11. Specifying a default nutrient list in
.pantryrc.xml
<pantryrc> <path dir='.' /> <path dir='/home/massysett/pantry' /> <default-nutrient-list name='facts' /> </pantryrc>
You may specify nutrient lists of your own in
your .pantryrc.xml file.
Each nutrient list you create will reside inside
a nutrient-list element. To
define multiple nutrient lists, you may define
multiple nutrient-list
elements; each nutrient-list
element must be the direct descendant of the
nutrient-lists element.
Each nutrient-list element
has a single attribute, name,
which defines the name of the nutrient list.
name must begin with a
letter, with subsequent characters being either
letters or numbers. The
nutrient-list element is
parent to one or more empty
nutrient elements.
Each nutrient element has
three attributes. The first is
name, such as
Calories or
Protein. The second is
units, or the units
corresponding to the name.
For Calories this would
be kcal; for
Protein, this would be
g. The third attribute,
goal, is optional. If you
wish to set a goal for your intake of this
nutrient, set attribute equal to your numeric
goal. If on the other hand you are including
this nutrient in your nutrient list only because
you want to see this nutrient printed in
reports, you may set the goal
attribute to the empty string
("") or you may
simply omit this attribute.
The name and
units values you use in your
nutrient elements must
correspond to one of the possible nutrients in
Pantry. To see a list of all the possible
nutrients in Pantry, use --nutrient-list
all --print list:
Example 4.12. Showing all available nutrients
$pantry --nutrient-list all --print list========== pantry-dev: warning: you did not specify any files to search. ========== Nutrient Name Units Goal ------------------------------------------------ 10:0 g None 12:0 g None 13:0 g None 14:0 g None 14:1 g None 15:0 g None 15:1 g None 16:0 g None 16:1 c g None 16:1 t g None [ trimmed to save space ]
To get started, let's suppoose I made
a New Year's resolution to eat less. I
want to eat 1800 calories a day. I also want
to make sure I eat 40 grams of fat per day,
90 grams of protein a day, and 270 grams of
carbs a day. I'm also curious about how
much calcium I am taking in, but I don't
want to bother setting a goal for that. I
decide to create a new nutrient list called
eatless to help me
meet my goals. Here is what my
.pantryrc.xml would
look like:
Example 4.13. .pantryrc.xml with
new nutrient list
<pantryrc> <path dir='.' /> <path dir='/home/massysett/pantry' /> <default-nutrient-list name='facts' /> <nutrient-list name='eatless'> <nutrient name='Calories' units='kcal' goal='1800' /> <nutrient name='Total Fat' units='g' goal='40' /> <nutrient name='Protein' units='g' goal='90' /> <nutrient name='Total Carbohydrate' units='g' goal='270' /> <nutrient name='Calcium' units='mg' /> </nutrient-list> </pantryrc>
To use my new nutrient list, I can just
specify --nutrient-list
eatless when I use
pantry:
Example 4.14. Using a new nutrient list
$pantry --name "Apples, raw, with skin" --print traits-nuts \>--nutrient-list eatless masterApples, raw, with skin Group: Fruits and Fruit Juices Refuse: 8 percent Core and stem 100 g (100g) Nutrient Amount %G %TOT ------------------------------------------------------- Calories 52 kcal 3 100 Total Fat 0 g 0 100 Protein 0 g 0 100 Total Carbohydrate 14 g 5 100 Calcium 6 mg NA 100
If I wanted to make
eatless the new
default nutrient list so that
pantry would use it even
if I do not use the --nutrient-list
eatless, I would add
<default-list
name='eatless'
/> right after any
path elements in my
.pantryrc.xml.
As we learned previously, you can use the
--sort to sort the reports that
Pantry prints by the traits of the foods. But this
only sorts the strings into your system's collation
order. What if you want to sort something into an
arbitrary order? For instance, you might want to
sort your meals into the order
Breakfast,
Lunch, and
Dinner, which certainly is not
alphabetical order.
To do this you can specify a sort order in your
.pantryrc.xml file. You may do
this for any trait that is not a numeric trait--that
is, for any trait except the qty
and pctRefuse traits. To do this,
include an element named
sort-order in your
.pantryrc.xml file. This
element must have a single attribute,
trait. For example, here we wish
to specify a custom sort order for the
meal trait, so we set the
trait attribute to
meal.
Inside the sort-order element,
include a single item element for
each value you wish to include in your sort order.
Each item element must have a
single attribute, value. Here,
for example, is how to sort meals into the order
Breakfast,
Lunch, and
Dinner. If the value of a food's
trait is not in the sort order list (for example,
supper), it is sorted
alphabetically with other foods whose trait value is
not in the list.
Example 4.15. .pantryrc.xml with
sort-order element
<pantryrc> <path dir='.' /> <path dir='/home/massysett/pantry' /> <default-nutrient-list name='facts' /> <nutrient-list name='eatless'> <nutrient name='Calories' units='kcal' goal='1800' /> <nutrient name='Total Fat' units='g' goal='40' /> <nutrient name='Protein' units='g' goal='90' /> <nutrient name='Total Carbohydrate' units='g' goal='270' /> <nutrient name='Calcium' units='mg' /> </nutrient-list> <sort-order trait='meal'> <item value='Breakfast' /> <item value='Lunch' /> <item value='Dinner' /> </sort-order> </pantryrc>
pantry features a
--by-nut change option that will
automatically change the quantity of a food so that it
has a particular amount of a certain nutrient that you
specify.[9]
The --by-nut option takes two
arguments. The first argument is a regular
expression to match the nutrient you wish to use.
The second argument is the amount of that nutrient
that you wish the food to be set to. Let us look at
an example:
Example 4.16. Using the --by-nut
option
$pantry --by-nut Calories 200 --name "Apples, raw, with skin" \>--print traits-nuts masterApples, raw, with skin Group: Fruits and Fruit Juices Refuse: 8 percent Core and stem 384.62 g (385g) Nutrient Amount %G %TOT ------------------------------------------------------- Calories 200 kcal 10 100 Total Fat 1 g 1 100 Saturated Fat 0 g 1 100 Cholesterol 0 mg 0 0 Sodium 4 mg 0 100 Total Carbohydrate 53 g 18 100 Dietary Fiber 9 g 37 100 Sugars 40 g NA 100 Protein 1 g 2 100 Vitamin A 208 IU 4 100 Vitamin C 18 mg 29 100 Calcium 23 mg 2 100 Iron 0 mg 3 100
As you can see, Pantry automatically changed the quantity of apples so that you would have 200 calories of apple. This works with any nutrient:
Example 4.17. Using --by-nut with Total
Fat
$pantry --by-nut "Total Fat" 5 --name "Avocados, raw, \>California" --print traits-nuts masterAvocados, raw, California Group: Fruits and Fruit Juices Refuse: 33 percent Seed and skin 32.45 g (32g) Nutrient Amount %G %TOT ------------------------------------------------------- Calories 54 kcal 3 100 Total Fat 5 g 8 100 Saturated Fat 1 g 3 100 Cholesterol 0 mg 0 0 Sodium 3 mg 0 100 Total Carbohydrate 3 g 1 100 Dietary Fiber 2 g 9 100 Sugars 0 g NA 100 Protein 1 g 1 100 Vitamin A 48 IU 1 100 Vitamin C 3 mg 5 100 Calcium 4 mg 0 100 Iron 0 mg 1 100
That gave us the right number of grams of avocado
that contain 5 grams of fat. The
--by-nut also works with the
--c-unit option. For example, here is how you
can find out what fraction of an avocado you would need
to eat in order to consume 5 grams of fat:
Example 4.18. Using --by-nut with
--c-unit
$pantry --by-nut "Total Fat" 5 --name "Avocados, raw, \>California" --c-unit fruit --print traits-nuts masterAvocados, raw, California Group: Fruits and Fruit Juices Refuse: 33 percent Seed and skin 0.24 fruit, without skin and seed (33g) Nutrient Amount %G %TOT ------------------------------------------------------- Calories 55 kcal 3 100 Total Fat 5 g 8 100 Saturated Fat 1 g 3 100 Cholesterol 0 mg 0 0 Sodium 3 mg 0 100 Total Carbohydrate 3 g 1 100 Dietary Fiber 2 g 9 100 Sugars 0 g NA 100 Protein 1 g 1 100 Vitamin A 48 IU 1 100 Vitamin C 3 mg 5 100 Calcium 4 mg 0 100 Iron 0 mg 1 100
The --by-nut option is useful in at
least two circumstances. First, as we have already seen,
it is useful if you are wondering how much of a food you
need to consume in order to get a certain amount of a
given nutrient. Second, it is useful if you wish to
approximate intake of a food that is not already in the
master file. For example, suppose I
eat 1/2 of a cup of Stonyfield
After Dark Chocolate ice cream.. Many
brand-name foods are already in the
master file, but this one is not. I
look through the ice creams and find that the closest
thing to Stonyfield in the master
file is probably Ice creams, chocolate,
rich:
Example 4.19. The closest thing to Stonyfield
$pantry --exact-match --name "Ice creams, chocolate, rich" \>--c-unit "cup" --c-qty .5 --print traits-nuts masterIce creams, chocolate, rich Group: Sweets .5 cup (74g) Nutrient Amount %G %TOT ------------------------------------------------------- Calories 189 kcal 9 100 Total Fat 13 g 19 100 Saturated Fat 8 g 38 100 Cholesterol 44 mg 15 100 Sodium 42 mg 2 100 Total Carbohydrate 15 g 5 100 Dietary Fiber 1 g 3 100 Sugars 13 g NA 100 Protein 3 g 7 100 Vitamin A 528 IU 11 100 Vitamin C 0 mg 1 100 Calcium 105 mg 11 100 Iron 1 mg 4 100
But Stonyfield apparently is even richer than this.
1/2 cup of Ice creams, chocolate,
rich has 189 calories, but looking at
the Stonyfield label tells me that 1/2 cup of Stonyfield
has 250 calories. What should I do? Well, as we will
learn in a later chapter, I can create a custom food for
Stonyfield After Dark Chocolate ice cream. Or I might
figure that Ice creams, chocolate,
rich is close enough for our purposes. I
can use it instead. My results will not be as accurate,
but perhaps I am not feeling the need to be super
accurate today. Because I know I ate 250 calories of
Stonyfield, I just do this:
Example 4.20. Approximating one food by using another food and
the --by-nut option
$pantry --exact-match --name "Ice creams, chocolate, rich" \>--by-nut Calories 250 --print traits-nuts masterIce creams, chocolate, rich Group: Sweets 98.04 g (98g) Nutrient Amount %G %TOT ------------------------------------------------------- Calories 250 kcal 13 100 Total Fat 17 g 26 100 Saturated Fat 10 g 51 100 Cholesterol 59 mg 20 100 Sodium 56 mg 2 100 Total Carbohydrate 20 g 7 100 Dietary Fiber 1 g 4 100 Sugars 17 g NA 100 Protein 5 g 9 100 Vitamin A 699 IU 14 100 Vitamin C 0 mg 1 100 Calcium 139 mg 14 100 Iron 1 mg 6 100
If you compare Pantry's output to the Stonyfield label (available at the website) you will see that Pantry comes out fairly close to what is on the label.
The first argument--the nutrient name--is a regular
expression. That means that it is case-sensitive, like
all other regular expressions in Pantry, unless you use
the --ignore-case option. Thus,
--by-nut calories 250 will get you an
error message unless you use
--ignore-case but --by-nut
Calories 250 will always work. This also
allows you to shorten things a bit--for example, you can
use --by-nut Saturated 250 to match
Saturated Fat. In addition, the
--by-nut also respects the
--exact-match option, so if you are
using --exact-match, then the first
argument to --by-nut are not regular
expressions and must exactly match the nutrient
name.
Most commonly you would find yourself using
--by-nut with Calories. Therefore,
pantry has a -K
option. It is equivalent to typing --by-nut
Calories:
Example 4.21. Using the -K option
$pantry --exact-match --name "Ice creams, chocolate, rich" -K \>250 --print traits-nuts masterIce creams, chocolate, rich Group: Sweets 98.04 g (98g) Nutrient Amount %G %TOT ------------------------------------------------------- Calories 250 kcal 13 100 Total Fat 17 g 26 100 Saturated Fat 10 g 51 100 Cholesterol 59 mg 20 100 Sodium 56 mg 2 100 Total Carbohydrate 20 g 7 100 Dietary Fiber 1 g 4 100 Sugars 17 g NA 100 Protein 5 g 9 100 Vitamin A 699 IU 14 100 Vitamin C 0 mg 1 100 Calcium 139 mg 14 100 Iron 1 mg 6 100
For didactic purposes, all the examples in this
manual use long-style options with two dashes.
However, almost every pantry
option is also available in short form. The search
options (which search for a particular trait) and
the change options (which change the traits of the
foods in your result to a new value) have short
options that conveniently differ only by their case.
Thus, for example, -g searches by
group name, and -G changes the
group name.
If you need to jog your memory on what option does what,
use the --help option. This option
will also tell you which long options have
corresponding short options.
In addition, when specifying reports, you may
specify only the first few letters of the report
name--enough letters to unambiguously specify the
report name. For example, instead of typing
--print names-nuts, you may
instead type --print na-nu.
As you have seen, pantry commands can get lengthy. That's one of the pitfalls of a command-line program. However, one of the great strengths of a command-line program is that you can easily write your own shell scripts or functions to automate commands you type frequently. In addition, shells have a wealth of features, such as history searching and command-line editing, that will speed up your shell usage. This will help you not only in Pantry but in other command-line tools as well.[10]
If you will use Pantry frequently, one of the things you
will find most helpful is to write a script or function
that will add new foods to a diary file. Such a script
can, for example, automatically use the
--c-date option to change the food so
that it has today's date, or automatically use the
--c-meal option. You might also write
scripts or functions to easily produce reports using the
--print options you use most
frequently.
The most popular shell today is bash, which is very featureful. If you have never written a shell script or function before, take a look at the Bash Guide for Beginners.
You may also wish to consider using a shell other than Bash. For a very well-documented shell that is easier to learn than bash, consider fish, the Friendly Interactive Shell. For a very powerful shell with excellent documentation, try zsh.
Finally, whether you use Bash or Zsh, I highly recommend getting a copy of From Bash to Z Shell: Conquering the Command Line by Kiddle, Peek, and Stephenson. It clearly explains many of the features of shells, such as command history and completion, that make interactive use much easier and faster. Unlike most texts on shells, this one focuses on interactive use. It is well worth the price.
Because you use Pantry from your standard command shell, you can easily combine Pantry with other Unix utilities, in ways that even I cannot anticipate. Most obviously, you will often use Pantry with less so that you may easily scroll through reports. You might also find yourself using sort, cut or even awk. The possibilities are endless.
Though Pantry may be used in conjunction with many other Unix shell utitlities, you may find GNU Screen to be particularly useful. screen is so useful with Pantry due to its advanced cutting-and-pasting capabilities. Here is a good introduction to screen. Most Linux systems will already have screen installed; if not, you'll be able to install it using your distribution's package manager.
Pantry includes the paste
report, which makes screen
particularly useful. Often in Pantry, you will be
searching your master file, not
entirely sure what food you are looking for. On
other occasions, you will know what you are looking
for, but your search terms return a lot of results
to scroll through--and the food that you want has a
very long name that you do not want to have to
retype. Using the paste
report, you can easily reuse your search results.
The paste report prints
one line for each available unit for each food. The
results include the -x,
-n, and -U
options, and the results are also quoted so you may
easily paste them into a subsequent
pantry command.[11]
To see how powerful this is, we can return to our
earlier example of finding how many calories are in
an apple. You would likely start by searching the
master file for the name trait
apple. As we saw earlier,
this returns 163 results:
Example 4.22. Searching for apple
returns 163 results
$pantry --ignore-case --name apple --print names masterBabyfood, cereal, oatmeal, with applesauce and bananas, junior HEALTHY CHOICE Traditional Meat Loaf w/Brown Sauce, Mashed Potatoes, Green Beans and Apple Praline Crisp, frozen meal Pie, apple, commercially prepared, enriched flour Apples, dried, sulfured, stewed, without added sugar Babyfood, dessert, fruit pudding, pineapple, strained Cereals ready-to-eat, GENERAL MILLS, OATMEAL CRISP, APPLE CINNAMON Cereals ready-to-eat, QUAKER, QUAKER APPLE ZAPS VERYFINE APPLE QUENCHERS Apple Raspberry Cherry Juice Cocktail, ready-to-drink Cereals, QUAKER, Instant Oatmeal, NUTRITION FOR WOMEN, Apple Spice, dry English muffins, raisin-cinnamon (includes apple-cinnamon) Babyfood, cereal, rice, with applesauce and bananas, strained Babyfood, cereal, oatmeal, with applesauce and bananas, strained Pineapple, raw, extra sweet variety Cereals ready-to-eat, KELLOGG, KELLOGG'S APPLE CINNAMON SQUARES MINI-WHEATS Custard-apple, (bullock's-heart), raw [ trimmed to save space ]
Earlier we limited our search results by typing
subsequent pantry commands and
tweaking the --name argument. When
we zeroed in on the food we wanted, we typed yet
another pantry command, this time
to figure out the available units. Finally, we typed
another pantry command to change
the unit and quantity to what we wanted and to print
the nutrient information for a single large apple.
You can do this using many fewer commands with
screen and the
paste report. After firing up
screen, type a
pantry for what you are looking
for. I also use sort because I
find it easier to scan results when they are
alphabetized.
Example 4.23. Using the paste
report
$pantry --ignore-case --name apple --group fruit --print paste master | \>sort-x -n 'Apple juice, canned or bottled, unsweetened, with added ascorbic acid' -U 'cup' -x -n 'Apple juice, canned or bottled, unsweetened, with added ascorbic acid' -U 'fl oz' -x -n 'Apple juice, canned or bottled, unsweetened, with added ascorbic acid' -U 'g' -x -n 'Apple juice, canned or bottled, unsweetened, with added ascorbic acid' -U 'lb' -x -n 'Apple juice, canned or bottled, unsweetened, with added ascorbic acid' -U 'oz' -x -n 'Apple juice, canned or bottled, unsweetened, without added ascorbic acid' -U 'cup' -x -n 'Apple juice, canned or bottled, unsweetened, without added ascorbic acid' -U 'drink box (8.45 fl oz)' -x -n 'Apple juice, canned or bottled, unsweetened, without added ascorbic acid' -U 'fl oz' -x -n 'Apple juice, canned or bottled, unsweetened, without added ascorbic acid' -U 'g' -x -n 'Apple juice, canned or bottled, unsweetened, without added ascorbic acid' -U 'lb' -x -n 'Apple juice, canned or bottled, unsweetened, without added ascorbic acid' -U 'oz' -x -n 'Apple juice, frozen concentrate, unsweetened, diluted with 3 volume water, with added ascorbic acid' -U 'cup' -x -n 'Apple juice, frozen concentrate, unsweetened, diluted with 3 volume water, with added ascorbic acid' -U 'fl oz' -x -n 'Apple juice, frozen concentrate, unsweetened, diluted with 3 volume water, with added ascorbic acid' -U 'g' -x -n 'Apple juice, frozen concentrate, unsweetened, diluted with 3 volume water, with added ascorbic acid' -U 'lb' [ trimmed to save space ]
Now you can scroll through the results using Screen's commands; copy the line you are interested in to Screen's paste buffer. For more details on how to do this, consult the Screen manual page under "copy". Pay particular attention to the J command, which joins lines--this is useful if a particular line is so long that it does not fit on one line in your terminal.[12]
After finding the result you are interested in, you can easily paste it in to a new command line and add the options you need.
Pantry should work just fine with non-ASCII characters, such as those with accents, Cyrillic characters, and so forth. Of course, figuring out how to get your terminal to produce these characters is up to you. Internally, Pantry works with Unicode characters and encodes them when appropriate using your system's default encoding; Pantry assumes that all input from your terminal is encoded using your system's default encoding. It is difficult to test all possibilities though, so if you encounter any bugs in this area please let me know.
[7] To which you might say: "big deal! It's just an apple core." The problem is minor with an apple, but consider the same issue with an ear of corn on the cob, or a pork sparerib...
[8] Nowadays I frequently see single apples that weigh nearly a pound!
[9] This feature shamelessly copied from a similar feature in NUT, as described under "Foods That Are Not in the Database" on How I Use NUT.
[10] Pantry used to include a script called pantry-addTo that helps cut typing. However, in release 18 I removed it from Pantry. pantry-addTo was difficult to document because it is a personal hack that does not nearly conform to any interface standards. Personal hacks are wonderful for personal use, but they shouldn't be distributed for others. Thus, feel free to write your own personal hacks that will work perfectly for you.
[11] Actually, the results are quoted so they may
be pasted into shells that have Bourne-like
syntax, such as bash,
zsh, and
fish. I don't know
enough about csh-like
shells to know if the
paste report works with
them.
[12] You don't have to use screen; you can copy and paste using your terminal emulator if you wish. Though I think screen is easier to use, you might diasgree...
Table of Contents
The master file comes with over
7,000 foods. However, you might find that you also need to
add additional foods to Pantry. This chapter will tell you
how to add additional foods by creating an XML file.
If you have a prepackaged food that already has a nutrition label, you can easily add it to a file. If however you have multiple foods that you wish to combine, then what you want is a recipe. We will discuss recipes in the next chapter.
As you may recall from our earlier discussions, an
essential element of Pantry is the food. Foods are contained
in food files. There are several different kinds of food
files. Until now, all the food files we have used have been
Pantry native files. You have been able to copy foods from
one Pantry native file, such as the master
file, and change the traits of those foods. To create
entirely new foods, you will create a different type of food
file, which we will call a Pantry XML
file. Unlike a Pantry native file, the Pantry XML file is in
human-readable, plain-text XML, which allows you to create
new foods.
This chapter will lead you through how to create your own
foods, step by step. If you're the impatient sort who would
rather learn by seeing some examples, consult the
examples directory in the Pantry
distribution.
In your favorite text editor, create a new file
whose name ends with .xml. As
an example, we will create a file named
pantry.xml.
The root element of a Pantry XML file is a
pantry element, so to get started
create that element.
Each food you create in the
pantry.xml file is contained
within a food element. The
food element has several
attributes. Each corresponds to the various food
traits that we've discussed earlier:
name, group,
date, meal,
unit, qty, and
comment. Only the
unit and qty
attributes are required. The unit
attribute may contain g,
oz, or
lb, or it may contain one of
the units given in the units
element, which we will discuss shortly. The
qty attribute may contain a
number, a fraction, or a mixed number.
For the other attributes, which are optional,
pantry will create a zero-length
attribute for those you leave unset. Typically
though, you will set the name and
group attributes to something
useful, while leaving many of the others blank.
Typically you will be getting your nutrition
information from food labels. Usually these will
indicate a serving size, as well as a serving in
grams. You will set the unit and
qty traits to match what is given
on the food label. As an example, we will use a Clif
Bar. You may find it helpful to follow along with
its nutrition label, which you can find here.[13]
Its label shows a serving size of 1 bar. So, we
enter the following text into our
pantry.xml to start:
Example 5.2. pantry.xml with
food element
<pantry> <food name="Clif Bar, Oatmeal Raisin Walnut" group="Snacks" refDesc="" pctRefuse="" unit="bar" date="" meal="" qty="1.0" comment=""> </food> </pantry>
Next, you will create nutrients for your food.
You define each nutrient by creating a
nutrient element. Each
nutrient element has two required
attributes and one optional attribute.
The name attribute to the
nutrient element, which is
required, gives the name of the nutrient, such as
Calories or
Iron. These names must
correspond to one of the nutrients that is allowed
in Pantry; to get a list of the allowed nutrients,
run pantry --nutrient-list all --print
list. The names are case sensitive,
so although Saturated Fat is
a valid nutrient, Saturated
fat is not a valid nutrient.
The amount attribute to the
nutrient element is also
required, and it is a number (either floating-point
or integer) indicating the amount of the
corresponding nutrient.
The third attribute to the
nutrient element,
units, is optional. Setting this
attribute to %, indicates
that the amount attribute is a
percentage of an FDA Daily Value. Pantry will
convert the amount attribute to
an appropriate amount. This is useful because
vitamins and minerals are listed on food labels by
percent of daily value, rather than by amount. If
the units is any value other than
%, Pantry will check to
ensure that the units are appropriate for the
nutrient you gave. For example, if you enter
Protein for the
name attribute but
mg for the
units attribute, Pantry will give
you an error because you may only use
g with the
Protein nutrient.
To continue with our Clif Bar example, here is the Clif Bar with its nutrient information. Because I am lazy, I did not enter all the nutrition information; instead, I just entered all the macronutrients and four of the vitamins and minerals.
Example 5.3. Food with nutrients
element
<pantry> <food name="Clif Bar, Oatmeal Raisin Walnut" group="Snacks" refDesc="" pctRefuse="" unit="bar" date="" meal="" qty="1.0" comment=""> <nutrient name="Calories" amount="240"/> <nutrient name="Total Fat" amount="5"/> <nutrient name="Saturated Fat" amount="1"/> <nutrient name="Trans Fat" amount="0"/> <nutrient name="Cholesterol" amount="0"/> <nutrient name="Sodium" amount="130"/> <nutrient name="Potassium" amount="310" /> <nutrient name="Total Carbohydrate" amount="43"/> <nutrient name="Dietary Fiber" amount="5"/> <nutrient name="Sugars" amount="20"/> <nutrient name="Protein" amount="10"/> <nutrient name="Vitamin A" units="%" amount="30"/> <nutrient name="Vitamin C" units="%" amount="100"/> <nutrient name="Calcium" units="%" amount="25"/> <nutrient name="Iron" units="%" amount="25"/> </food> </pantry>
Finally, it is time to enter units, which you do
using the unit element. These
elements map common units of measure to a food's
weight in grams, and they correspond to to the
available units that we discussed earlier. Thus,
each unit element has two
attributes. name corresponds to
the name of the unit, such as
cup or
stick or
box--whatever is appropriate.
The grams attribute corresponds
to whatever the weight of a single
name is, in grams.
As always, Pantry will provide the units
g, oz,
and lb for you, so do not
enter those in unit elements.
However, if you entered anything other than
g, oz,
or lb for the
unit attribute of the
food element, you must define a
corresponding unit element. Thus,
because the unit attribute for
our Clif Bar is bar, we must
define a corresponding unit
element. With that, we have a complete
food element.
Example 5.4. Complete pantry.xml
file.
<pantry> <food name="Clif Bar, Oatmeal Raisin Walnut" group="Snacks" refDesc="" pctRefuse="" unit="bar" date="" meal="" qty="1.0" comment=""> <nutrient name="Calories" amount="240"/> <nutrient name="Total Fat" amount="5"/> <nutrient name="Saturated Fat" amount="1"/> <nutrient name="Trans Fat" amount="0"/> <nutrient name="Cholesterol" amount="0"/> <nutrient name="Sodium" amount="130"/> <nutrient name="Potassium" amount="310" /> <nutrient name="Total Carbohydrate" amount="43"/> <nutrient name="Dietary Fiber" amount="5"/> <nutrient name="Sugars" amount="20"/> <nutrient name="Protein" amount="10"/> <nutrient name="Vitamin A" units="%" amount="30"/> <nutrient name="Vitamin C" units="%" amount="100"/> <nutrient name="Calcium" units="%" amount="25"/> <nutrient name="Iron" units="%" amount="25"/> <unit name="bar" grams="68"/> </food> </pantry>
You can use Pantry XML files, such as the
pantry.xml file we have created
in this example, just as you would use a Pantry
native file (the format used by the
master file.) For example:
Example 5.5. Use a Pantry XML file as you would use a Pantry native file
$pantry --name Clif --print traits-nuts pantry.xmlClif Bar, Oatmeal Raisin Walnut Group: Snacks 1.0 bar (68g) Nutrient Amount %G %TOT ------------------------------------------------------- Calories 240 kcal 12 100 Total Fat 5 g 8 100 Saturated Fat 1 g 5 100 Cholesterol 0 mg 0 0 Sodium 130 mg 5 100 Total Carbohydrate 43 g 14 100 Dietary Fiber 5 g 20 100 Sugars 20 g NA 100 Protein 10 g 20 100 Vitamin A 1500 IU 30 100 Vitamin C 60 mg 100 100 Calcium 250 mg 25 100 Iron 5 mg 25 100
However, I recommend adding the foods to a Pantry
native file, because you will find
it most convenient if the foods you create are
mingled with the other foods you use, either in the
master file or in a
quick file, as we discussed
earlier.[14]
For example, to add the Clif Bar to my
master file, I simply run
pantry --add master pantry.xml.
You may insert comments into your XML file,
using XML-standard comments (that is, <!--
like this -->). In addition, you will
probably format your XML in a certain way by
using tabs and newlines. However, if you make
changes to the XML file using
--add, --edit,
or --delete, Pantry will
destroy this formatting and
lose the comments. You will also find that, if
you use --add,
--edit, or
--delete, Pantry will rearrange
the order of the foods in your XML file and will
even rearrange the order of the attributes.
For the time being,[15]
one solution to this is to use
only the comment attribute if you
wish to comment on foods. Also, you can simply refrain
from making changes to the file using Pantry; Pantry
will not destroy data in XML files if it only reading
data from them.
As you already know, you can easily edit the traits
of foods in Pantry. But what if you want to edit the
nutrients or available units of a food? As you can
probably guess now, the solution is to use a Pantry XML
file. Pantry XML files behave just like Pantry native
files. So if, for example, you wish to edit foods in the
master file, you can simply create
a Pantry XML file with the foods you wish to edit. Pantry
automatically creates a Pantry XML file if you use the
extension .xml. So, to create a
Pantry XML file with bananas, use pantry
--add banana.xml --name 'Bananas, raw'
master. You can then edit this food
however you wish, and you can then add the results back
to the master file using the
--add option.
Remember that Pantry will not allow you to have two
identical foods in a single file. Two foods are
considered identical if their traits are identical, even
if their nutrients or their available units differ. If
foods are identical, Pantry will simply add
(Copy x) to the food's
Comment trait. Keep this in mind if,
for example, you edit the banana in the
banana.xml file and then add it
back to the master file.
Pantry automatically validates Pantry XML files for
you.[16]
To see the DTD that Pantry uses for this purpose,
run pantry --dump pantryDTD.
You might, for instance, want to use this DTD to
validate the XML yourself.
If any of your files do not validate, Pantry will print an error message along with the output of the validator. Study the output of the validator because it will usually help you fix the error.
The validator will often hang if the input file is
very large. Therefore, Pantry will only validate files
if they are below 300 kilobytes in size. It is unlikely
that you will ever create XML files that large by hand,
although you might have Pantry create an XML file that
large (that's what you will get if you run, for example,
pantry --add pantry.xml master).
Pantry will give you an error message if you try to
use a file that large. One way to use large files is to
use the --skip-valid, which will turn
off validation. This is of course a bad idea for files
that you have edited by hand (because they might have
errors that then will go unchecked) but skipping
validation is fine for large files that were generated
entirely by Pantry. Alternatively, you can use
--force-valid to make Pantry validate
all XML files, regardless of how large they are. This
might cause Pantry to wait for an extremely long time
for the validator to finish--the validator might even
freeze if the file is extremely large.
[13] Use of the Clif Bar in this example wholeheartedly implies my endorsement of Clif Bars. They are handy, tasty snacks.
[14] In addition, Pantry XML files are slower to process than Pantry native files. If a Pantry XML file contains just a few foods, the difference is not noticeable. However, for more than several dozen foods, the speed difference might begin to add up. That is one reason why Pantry does not use XML as its native file format.
[15] I considered fixing this problem, but the technical hurdles are significant, so it is not likely to be fixed soon, if ever.
[16] If your system has xmllint installed, that is what Pantry will use to validate files. If not, then Pantry will use a validator written in Python, which is slower but gets the job done.
Table of Contents
So far, all the files that we have worked with have either been binary files[17] or XML files. Pantry can also store foods in a more traditionally Unix plain text format--that is, in a text file with each row representing a single food and each column representing something about that food. In this chapter you'll learn about the advantages and disadvantages of this file format and how you can use it.
As you know, a food in Pantry consists of traits, nutrients, and available units. That's a lot of data. The two file formats we have seen so far--the Pantry native file and the Pantry XML file--both contain all of this data for each and every food. The Pantry native file is fast, but you can't edit that with your text editor at all. The Pantry XML file can be edited with your text editor, but the format is so verbose that you don't ordinarily want to touch it unless you have to--if, for example, you are creating an entirely new food.
The Foods Text file is a little different from the Pantry XML and Pantry native files because it does not contain all the data for each and every food. Instead, it relies upon another Pantry XML or Pantry native file to contain all the food data. In the Foods Text file, each line corresponds to a particular food. Each line specifies a source file for the food. The source file will be a Pantry XML or Pantry native file that will contain the nutrient and unit data for the food.
Pantry must look up the food in the source file. To
do this, Pantry uses the food's name. There must be
exactly one match for the food name that you specify;
therefore, you will find Foods Text files to be easiest
to use if you have source files in which every food name
is unique. The master file meets
this criterion; you might also set up a
quick file that also meets this
criterion.
This will all get more clear with examples:
Here is an example Foods Text file:
Example 6.1. A sample Foods Text file
#source:name:qty:unit:date:meal:group:comment:options #Options: x=exact match; i=ignore case master:Milk, reduced fat, fluid, 2% milkfat, with added vitamin A:1.0:cup:2007-06-30:Breakfast:Cereal and Milk::x master:Papayas:1 1/2:medium master:blueberries, raw:5:oz:::::i
The first thing to notice is that you can begin
comments anywhere on a line with a hash mark,
#. Pantry ignores any text after the
comment symbol. Here, the first two lines are handy
reminders of the syntax of the Foods Text file.
Colons separate the fields in the Foods Text file. If
you need to include a colon or a hash mark in a field,
you can precede it with a backslash,
\. To include a backslash, precede it
with a backslash. A single backslash followed by any
character other than a backslash, colon, or hash mark
generates an error.
Here is what appears in each column of the Foods Text file:
path that
you specified in your
.pantryrc.xml, then you can
omit the full path name here.x is
specified in the options
column. The search is case-sensitive unless
i is specified in the
options column. After looking
up the food using the contents of this column
and the source column, Pantry
changes the traits of the food according to the
following columns.x is
specified in the options
column, and the search is case sensitive unless
i is specified in the
options column.date trait for the new
food.meal trait for the new
food.group trait for the new
food.comment trait for the
new food.x
specifies that the search for the food name and
for the unit must be an exact match, rather than
a regular expression. i makes
searches case insensitive.If you only need to use some of the columns, you can leave out trailing columns. The only columns that you must specify are the first two, for the source and the food name.
You may have noticed that there is a column to set
most of the food's traits, but there is no column to set
the food's order trait. This is
because Pantry automatically sets the food's
order trait so that it is equal to
the line number of the food in the file, although it is
left-padded with zeroes so that it will equal four
digits.
After you have completed your Foods Text file, you can use it just as you would any other Pantry file. Here is an example:
Example 6.2. Using a Foods Text file
$pantry --print traits-units-blank foods.txtBlueberries, raw Group: Fruits and Fruit Juices Order: 0005 Refuse: 5 percent Stems and green or spoiled berries 5 oz (142g) pint as purchased, yields cup Milk, reduced fat, fluid, 2% milkfat, with added vitamin A Group: Cereal and Milk Date: 2007-06-30 Meal: Breakfast Order: 0003 1.0 cup (244g) quart fl oz cup Papayas, raw Group: Fruits and Fruit Juices Order: 0004 Refuse: 33 percent Seeds and skin 1 medium (5-1/8" long x 3" dia) (304g) small (4-1/2" long x 2-3/4" dia) medium (5-1/8" long x 3" dia) cup, mashed cup, cubes large (5-3/4" long x 3-1/4" dia)
The nice thing about Foods Text files is that although you can edit them with your text editor, you can also manipulate them using ordinary Pantry commands. For example:
Example 6.3. Changing a Foods Text file
$pantry --name "Apples, raw, with skin" --c-date "April \>15" --c-qty 1 --c-unit medium --add foods.txt master
$cat foods.txt#source:name:qty:unit:date:meal:group:comment:options #Options: x=exact match; i=ignore case master:Milk, reduced fat, fluid, 2% milkfat, with added vitamin A:1.0:cup:2007-06-30:Breakfast:Cereal and Milk::x master:Papayas:1:medium master:blueberries, raw:5:oz:::::i master:Apples, raw, with skin:1:medium (2-3/4" dia) (approx 3 per lb):April 15::Fruits and Fruit Juices::x
As you can see, when you add foods to a Foods Text
file using pantry, appropriate text
is added to the end of the file. However, beware that
if you change the name of the food using the
--c-name option, Pantry will not be
able to locate the food in the source file. You can,
however, change any of the other traits, although Pantry
will override any changes you make to the
order trait because the
order trait is automatically set to
the line number of the food. Thus the
--auto-order option has no effect when
using Foods Text files.
Thus, there are three different file formats that do similar things: keep Pantry foods. You might be wondering which one you should use.
Each file format has advantages and disadvantages. The Pantry native file is the fastest one for Pantry to work with, but it cannot be edited with a text editor. The Pantry XML file is plain-text, but Pantry takes some time to open it and to write changes to it because it is XML. The Foods Text file is also plain-text, and very easy to edit, but it does not hold all the data needed for a food and so it must rely on source files.
I find it best to use a Foods Text file for my
diaries. It is remarkably easy to edit, which makes it
easy to fix mistakes. It's also easiest to reorder foods
in a Foods Text file; then I can easily sort the reports
using the --sort o option. It's also
possible to assign the order trait to foods in other
files using the --c-order option, but
that is more cumbersome.
For files that will contain many foods, such as a
master file, I use a Pantry native
file because it is the speediest. Of course, when adding
entirely new foods with new nutrient information, my
only choice is to use a Pantry XML file.[18] I otherwise avoid Pantry XML files because
XML is a bit cumbersome to edit.
I also keep a quick
file for easy access to the foods I use often. I keep
this in a Pantry native file, but if your
quick file is relatively short
(under a couple of hundred foods, say) there's no reason
not to use a Foods Text file for this (except for the
fact that you'll have to make sure it stays harmonized
with the source file--that is, you have to ensure that
the foods that the Foods Text file looks up in the
source file remain in the source file.)[19]
[17] The distinction between binary files and plain-text files is quite arbitrary. It is fair to say that there is no such thing as plain text. But for our purposes we will call anything that you usually edit in a text editor "plain text".
[18] I have considered making a way to add entirely new foods using the Pantry command-line interface, but I don't see how much of a benefit this would be.
[19] Here is as good a place as any to point out
that there is yet another Pantry file format:
the Foods Zip file. This is what I use to import
the SR data from the Zip file that USDA
provides. If you are curious, you can download
the full plain-text version and run something like
pantry --add master
sr19.zip to make your very own
master file. I can't
guarantee that this will work with any releases
subsequent to SR 19, and it takes lots of RAM
too (about 200 MB, maybe.)
Table of Contents
So far, you know how to add your own foods to Pantry. However, to add a food, you have to know what its nutrient content is. If you have a food that is a mixture of several different foods, then making a recipe can help. You'll learn how to do that in this chapter.
This chapter will lead you through how to create your own
recipes. If you would rather jump right into an example, you
can try consulting the examples
directory in the Pantry distribution, which has some
example files.
The basic building block of Pantry is the food. Each food has traits, nutrient content, and available units. In Pantry, you can combine several foods into one single food using recipes. Thus, for example, you can combine corn meal, flour, water, baking powder, sugar, salt, and eggs using a recipe. The result will be a single food that you can call corn bread. This new food will have traits, available units, and nutrients, just like any other food in Pantry.
Sometimes using a recipe is overkill. For example,
say you have a few foods that you always eat together in
a certain quantity. It can be much quicker and easier to
simply give these foods a common group trait. For
example, I often eat two ounces of cold cereal with one
cup of milk. I could create a recipe for these foods.
Instead, I have simply added both of these foods to my
quick file, and I have changed the
group trait of both foods to
Cereal and Milk. Then, when I
want to record in my diary that I have eaten these two
foods, I simply issue ab -g 'cereal and
milk'.
Thus you will find recipes most useful in two instances. First, recipes are handy if you have several foods that you wish to combine into one food. Then the nutrient breakdown of all the foods will appear together in your reports. Second, you have to use recipes if you wish take several foods, combine them, and subdivide the results. For example, if I wanted to eat an entire 9x9-inch dish of corn bread, perhaps I could treat corn bread in Pantry the same way I record my cereal and milk. However, because I want to divide the corn bread into multiple portions and eat them separately, I must use a recipe.
Just like when you add new foods, you can write
recipes in Pantry by using the Pantry XML file. While
you enter foods in Pantry XML files by using the
foods element, to enter recipes you
use the recipe element.
To create a Pantry XML file, start your favorite text
editor and open a text file. For the purposes of our
example we'll use pantry.xml,
though you can create any filename that ends with
.xml.
As we saw earlier when we created new foods, the
root element of a Pantry XML file is
pantry. Each recipe is contained
in a recipe element. The
recipe elemen thas the same
attributes as the food element
that we learned about earlier:
Of all these attributes, you are required to
set only the unit and
qty attributes. You can leave
as many of the other ones out as you wish,
though ordinarily you will set the
name and
group attributes while
leaving many of the others blank.
Just like when you create a new food using the
food element, you must set the
unit attribute to one of the
available units for the recipe. Pantry will
automatically create the g,
oz, and
lb units for you. You can
also have Pantry create a
serving unit, as we will
discuss shortly.
For our example, we will create a recipe with the
name Easy Corn Bread. As you
will see, the new recipe has its unit set to
serving; shortly we will see
exactly how this works. You will also notice that
many of the attributes for the various traits, such
as date and
meal, are not set at all; Pantry
will set such traits to the empty string.
Example 7.1. Creating the recipe
element
<pantry> <recipe name="Easy Corn Bread" group="Baked Products" pctRefuse='' refDesc='' qty='1' unit='serving'> </recipe> </pantry>
Next you will need to set the yield of your
recipe. The yield element has
three attributes: grams,
servings, and
text. The
servings attribute is easiest to
understand, so we will discuss it first.
Often when you make a recipe, you split it
into an even number of servings. If that is the
case for your recipe, you may enter an
appropriate value for the
servings attribute. Pantry
will automatically create a
serving available unit
for the food in this case. If you do not wish to
specify a number of servings, you can simply not
use the servings attribute at
all.
For our corn bread example, we will say that the recipe makes nine servings.
In order for Pantry to accurately calculate the nutrient content of a particular amount of food, it needs to know what the total mass of your completed recipe is, after it has been fully prepared (that is, after cooking, baking, mixing, etc., as the case may be.)
Pantry can "guess" what the total
mass of your completed recipe is. Pantry guesses
by adding up the mass of all the ingredients you
entered for the recipe. To have Pantry guess
for you, simply use an empty string for the
grams attribute, or just
leave the grams attribute out
entirely. However, you will often find that the
completed recipe weighs significantly less than
the mass of all the ingredients. This is because
a lot of water often evaporates as you cook or
bake foods. Thus, for the most accurate
results, you may enter the mass of your
completed recipe so that Pantry may take it into
account. To do this, enter the appropriate value
(in grams) for the grams
attribute.
However, if you have entered a
servings attribute, and you
will use only the
serving available unit
when you use the recipe, then entering a
grams attribute will do you
no good. This is because Pantry will calculate
each serving so that it is the appropriate
fraction of the total, but the actual total mass
will not matter.
I always cut my cornbread into nine neat
squares, and I always eat only one square at a
time. Thus, since I will use only the
servings available unit
for the corn bread, I will simply enter an empty
string for the grams
attribute.
Finally, you may enter any text you wish
for the text attribute.
This text can
be used to describe the yield of the recipe.
I make my corn bread in a 8x8-inch dish, so
I will make an appropriate entry for the
yield element.
No recipe is complete without ingredients. Each
single ingredient is represented by a
ingredient element. The
ingredient element has four
attributes: name,
qty, unit,
comment, and
file.
As you will recall, each ingredient in a Pantry
recipe is a another Pantry food. These foods come
from another Pantry file. For each ingredient, you
will specify the source file by specifying the path
to the file in the file
attribute. If you have specified a search path in
your pantryrc.xml file, you
need not specify the entire path if the source file
is in the search path you specified. Otherwise,
specify the entire path of the file for each
file attribute.
For each ingredient, Pantry will look in the file
specified for the food you specify using the
name attribute. Unlike much of
the rest of Pantry, the text of the
name attribute is not a regular
expression. Instead, you must exactly match every
space, and you must exactly match the mixture of
upper- and lower-case letters, as well.
The qty attribute is simply
the quantity of the ingredient. As with most other
numeric values in Pantry, you may use an integer, a
floating-point number, a fraction, or even a mixed
number.
The unit attribute is
an exact match of the available unit you wish to use
for this ingredient. As with the
name attribute, this is
case-sensitive.
Finally, the last attribute,
comment, is optional. This can be
whatever helpful text you may wish to enter.
Here is our corn bread example, complete with all
its ingredients. Because I have set up a
.pantryrc.xml file with a path
that includes the master file,
I don't need to give the entire path for the
path attributes.
Example 7.3. A recipe with its
ingredients
<pantry>
<recipe name="Easy Corn Bread"
group="Baked Products" pctRefuse='' refDesc=''
qty='1' unit='serving'>
<yield grams='' servings='9' text='One square pan' />
<ingredient name='Wheat flour, white, all-purpose, enriched, unbleached'
qty='1 1/4' unit='cup' comment='' file='master' />
<ingredient name='Cornmeal, whole-grain, yellow'
qty='3/4' unit='cup' comment='' file='master' />
<ingredient name='Sugars, granulated'
qty='1/4' unit='cup' comment='' file='master' />
<ingredient name='Leavening agents, baking powder, double-acting, straight phosphate'
qty='2' unit='tsp' comment='' file='master' />
<ingredient name='Salt, table'
qty='1/2' unit='tsp' comment='' file='master' />
<ingredient name='Milk, reduced fat, fluid, 2% milkfat, with added vitamin A'
qty='1' unit='cup' comment='' file='master' />
<ingredient name='Oil, canola and soybean'
qty='1/4' unit='cup' comment='' file='master' />
<ingredient name='Egg, whole, raw, fresh'
qty='1' unit='large' comment='' file='master' />
</recipe>
</pantry>
Finally, you may create additional available
units for the food. Pantry automatically creates the
g, oz,
and lb units for you; in
addition, if you specified a
servings attribute to the
yield element, as we discussed
above, then Pantry will also automatically create a
serving available unit. If
you wish to create any additional available units,
you will need to know the weight (in grams) of that
unit. If for instance you are entering a recipe for
cookies and you want to create an avaiable unit for
one cookie, you'll need to know the weight in grams
of one cookie.
To create available units, create one or more
unit elements. Each
unit element will have both
name and grams
attributes. As I stated above, I always eat one
serving of corn bread, so I do not have any use for
the units element here. However,
for the sake of illustration, we'll say that a
large piece of corn bread
weighs 70 grams.
Example 7.4. A recipe's units
<pantry>
<recipe name="Easy Corn Bread"
group="Baked Products" pctRefuse='' refDesc=''
qty='1' unit='serving'>
<yield grams='' servings='9' text='One square pan' />
<ingredient name='Wheat flour, white, all-purpose, enriched, unbleached'
qty='1 1/4' unit='cup' comment='' file='master' />
<ingredient name='Cornmeal, whole-grain, yellow'
qty='3/4' unit='cup' comment='' file='master' />
<ingredient name='Sugars, granulated'
qty='1/4' unit='cup' comment='' file='master' />
<ingredient name='Leavening agents, baking powder, double-acting, straight phosphate'
qty='2' unit='tsp' comment='' file='master' />
<ingredient name='Salt, table'
qty='1/2' unit='tsp' comment='' file='master' />
<ingredient name='Milk, reduced fat, fluid, 2% milkfat, with added vitamin A'
qty='1' unit='cup' comment='' file='master' />
<ingredient name='Oil, canola and soybean'
qty='1/4' unit='cup' comment='' file='master' />
<ingredient name='Egg, whole, raw, fresh'
qty='1' unit='large' comment='' file='master' />
<unit name='large piece' grams='70' />
</recipe>
</pantry>
Finally, you need something to tell you how to
put together all those ingredients. You can do this
by including an optional directions
element. Enclose each paragraph of your directions
inside a p element. Eventually I
will probably add additional formatting tags, such
as b and i,
but for now you're stuck with just
p.
Example 7.5. Recipe directions
<pantry>
<recipe name="Easy Corn Bread"
group="Baked Products" pctRefuse='' refDesc=''
qty='1' unit='serving'>
<yield grams='' servings='9' text='One square pan' />
<ingredient name='Wheat flour, white, all-purpose, enriched, unbleached'
qty='1 1/4' unit='cup' comment='' file='master' />
<ingredient name='Cornmeal, whole-grain, yellow'
qty='3/4' unit='cup' comment='' file='master' />
<ingredient name='Sugars, granulated'
qty='1/4' unit='cup' comment='' file='master' />
<ingredient name='Leavening agents, baking powder, double-acting, straight phosphate'
qty='2' unit='tsp' comment='' file='master' />
<ingredient name='Salt, table'
qty='1/2' unit='tsp' comment='' file='master' />
<ingredient name='Milk, reduced fat, fluid, 2% milkfat, with added vitamin A'
qty='1' unit='cup' comment='' file='master' />
<ingredient name='Oil, canola and soybean'
qty='1/4' unit='cup' comment='' file='master' />
<ingredient name='Egg, whole, raw, fresh'
qty='1' unit='large' comment='' file='master' />
<unit name='large piece' grams='70' />
<directions>
<p>
Heat oven to 400 degrees F. Grease 8 or 9-inch pan.
Combine dry ingredients. Stir in milk, oil, and egg,
mixing just until dry ingredients are moistened. Pour
batter into prepared pan. Bake 20 to 25 minutes or until
light golden brown and wooden pick inserted in center
comes out clean. Serve warm.
</p>
</directions>
</recipe>
</pantry>
You can use a Pantry XML file that contains recipes just as you would use any Pantry file. As we discussed earlier when we talked about creating foods, I would recommend adding the contents of a Pantry XML file to a Pantry native file, because Pantry works with native files much faster than it works with XML files.
Example 7.6. Using a Pantry XML file
$pantry --name "Easy Corn Bread" --print traits-units-nuts \>pantry.xmlEasy Corn Bread Group: Baked Products 1 serving (73g) serving Nutrient Amount %G %TOT ------------------------------------------------------- Calories 197 kcal 10 100 Total Fat 8 g 12 100 Saturated Fat 1 g 5 100 Cholesterol 26 mg 9 100 Sodium 233 mg 10 100 Total Carbohydrate 28 g 9 100 Dietary Fiber 1 g 5 100 Sugars 7 g NA 100 Protein 4 g 8 100 Vitamin A 100 IU 2 100 Vitamin C 0 mg 0 100 Calcium 113 mg 11 100 Iron 1 mg 8 100
Example 7.7. Adding a recipe to a Pantry native file
$pantry --add master pantry.xml========== pantry-dev: warning: duplicate of food Wheat flour, white, all-purpose, enriched, unbleached when adding to file master; added "(Copy 1)" to Comment trait ==========
$pantry --name "Easy Corn Bread" --print names masterEasy Corn Bread
Now that you know how to create recipes, you will
find that there are several additional reports that will
come in handy when you are using the
--print option. You can use all the
reports you have already learned about; they work
identically with both regular foods and with recipes.
The most handy additional report is the
recipe report. It gives you a
plain-text representation of a recipe, along with some
additional handy information such as the weight of each
ingredient:
Example 7.8. The recipe report
$pantry --name "Easy Corn Bread" --print recipe masterEasy Corn Bread One square pan (658g) 1 1/4 cup (5.511oz, 156g) Wheat flour, white, all-purpose, enriched, unbleached 3/4 cup (3.228oz, 92g) Cornmeal, whole-grain, yellow 1/4 cup (1.764oz, 50g) Sugars, granulated 2 tsp (0.325oz, 9g) Leavening agents, baking powder, double-acting, straight phosphate 1/2 tsp (0.106oz, 3g) Salt, table 1 cup (8.607oz, 244g) Milk, reduced fat, fluid, 2% milkfat, with added vitamin A 1/4 cup (1.922oz, 54g) Oil, canola and soybean 1 large (1.764oz, 50g) Egg, whole, raw, fresh Heat oven to 400 degrees F. Grease 8 or 9-inch pan. combine dry ingredients. Stir in milk, oil, and egg, mixing just until dry ingredients are moistened. Pour batter into prepared pan. Bake 20 to 25 minutes or until light golden brown and wooden pick inserted in center comes out clean. Serve warm.
You can get the same information by using
--print
names-makes-blank-ingredients-blank-directions,
but --print recipe is a bit shorter to
type. You can use the other reports, such as
ingredients, if you're only
interested in a subset of the information. Of course,
you can combine the recipe report
with other Pantry reports. You can also use handy
utilities such as fold, which should
already be installed if you are using a GNU operating
system.[20]
This gives you nice printer-ready output that you
can feed to lp:
Example 7.9. Using the recipe report with
other cool stuff
$pantry --name "Easy Corn Bread" --print recipe-blank-traits- \>nuts master | fold --spaces --width=68Easy Corn Bread One square pan (658g) 1 1/4 cup (5.511oz, 156g) Wheat flour, white, all-purpose, enriched, unbleached 3/4 cup (3.228oz, 92g) Cornmeal, whole-grain, yellow 1/4 cup (1.764oz, 50g) Sugars, granulated 2 tsp (0.325oz, 9g) Leavening agents, baking powder, double-acting, straight phosphate 1/2 tsp (0.106oz, 3g) Salt, table 1 cup (8.607oz, 244g) Milk, reduced fat, fluid, 2% milkfat, with added vitamin A 1/4 cup (1.922oz, 54g) Oil, canola and soybean 1 large (1.764oz, 50g) Egg, whole, raw, fresh Heat oven to 400 degrees F. Grease 8 or 9-inch pan. combine dry ingredients. Stir in milk, oil, and egg, mixing just until dry ingredients are moistened. Pour batter into prepared pan. Bake 20 to 25 minutes or until light golden brown and wooden pick inserted in center comes out clean. Serve warm. Easy Corn Bread Group: Baked Products 1 serving (73g) Nutrient Amount %G %TOT ------------------------------------------------------- Calories 197 kcal 10 100 Total Fat 8 g 12 100 Saturated Fat 1 g 5 100 Cholesterol 26 mg 9 100 Sodium 233 mg 10 100 Total Carbohydrate 28 g 9 100 Dietary Fiber 1 g 5 100 Sugars 7 g NA 100 Protein 4 g 8 100 Vitamin A 100 IU 2 100 Vitamin C 0 mg 0 100 Calcium 113 mg 11 100 Iron 1 mg 8 100
Now that you know how to create both foods and recipes, you can create them both in the same Pantry XML file.
[20] Non-GNU UNIX systems will likely have a
fold utility installed, but
it might not have handy options such as
--spaces. Windows won't have
fold at all.
Table of Contents
This appendix contains reference pages for the commands that Pantry uses. They are identical to the man pages.
pantry — nutrient analyzer
pantry [options...] [file...]
pantry [--dump
dumpable]
pantry copies foods from
FILEs into a buffer. All
foods are copied, unless SEARCH
OPTIONS are specified, in which case
only matching foods are copied. SEARCH
OPTIONS are cumulative.
pantry then changes every food in
the buffer using any CHANGE OPTIONS
specified.
If --edit or
--delete is specified,
pantry deletes the unchanged
foods from the corresponding original
FILEs. If
--edit is specified,
pantry adds changed foods to
corresponding original
FILEs.
If --print
is
specified, buffer is printed using
REPORTREPORT If
--nutrient-list
is
specified, buffer is printed using
NUTRIENT-LISTNUTRIENT-LIST; otherwise, the
default nutrient list is used. Buffer is unsorted
unless --sort TRAITS is specified.
If --add is specified, each food in
the buffer is added to
FILE.
Pantry uses Perl compatible regular expressions.
Search options
-n
regexp
,
--name
regexp
Include foods whose
name trait
matches
regexp.
-g
regexp
,
--group
regexp
Include foods whose
group trait
matches
regexp.
-d
regexp
,
--date
regexp
Include foods whose
date trait
matches
regexp.
-m
regexp
,
--meal
regexp
Include foods whose
meal trait matches
regexp.
-u
regexp
,
--unit
regexp
Include foods whose
unit trait
matches
regexp.
-c
regexp
,
--comment
regexp
Include foods whose
comment trait matches
regexp.
-q
number
,
--qty
number
Include foods whose
qty trait
matches
number.
-o
regexp
,
--order
regexp
Include foods whose
order trait
matches
regexp.
Change options
-N
string
,
--c-name
string
Change
name trait to
string.
-G
string
,
--c-group
string
Change
group trait to
string.
-D
string
,
--c-date
string
Change
date trait to
string.
-M
string
,
--c-meal
string
Change
meal trait to
string.
-U
regexp
,
--c-unit
regexp
Search each food's available units
using regexp.
If there is exactly one match, set
unit trait to that
match; otherwise, print warning,
remove food from buffer, and do not
process the --delete or
--edit options for this
food.
-C
string
,
--c-comment
string
Change
comment trait to
string.
-Q
number
,
--c-qty
number
Change
qty trait to
number.
-O
string
,
--c-order
string
Change
order trait to
string.
--by-nut
regexp
amount
Change quantity of food so that
amount of nutrient matched by
regexp equals
amount
-K
amount
Same as --by-nut
Calories
amount
--refuse
-R
Reduce qty of every food in buffer by its corresponding refuse trait
--auto-order
,
-A
When adding each food to files
specified with --add,
pantry will search
the file for other foods with identical
date and
meal traits. The
result will be sorted in ascending order
by the order
trait. If the highest food's
order trait
matches the regular expression
^[0-9]{4}$, then
pantry will take the
highest food's
order trait,
remove any leading zeroes, removes the
last digit, and increment
the result by one. The result will be
left-padded with zeroes so that it is
four characters long.
pantry will then
change the trait of the food to the
result before adding it to the file.
If there are no foods with identical
date and
meal traits, then
pantry will set the
food's order trait to
0010.
--auto-order has no
effect when adding foods to Foods Text
files.
Print options
-p
report
,
--print
report
Print buffer using
report.
-l
nutrient-list
,
--nutrient-list
nutrient-list
use nutrient-list
when printing report
-s
traits
,
--sort
traits
Sorts foods by trait when printing a
report. Specify traits by their first
letter; for example, to sort by name,
date, and meal, specify --sort
ndm. Use lower-case letters
to sort in ascending order; use
upper-case letters to sort in descending
order.
Other general options
-i
,
--ignore-case
Make all Search
options, and the
--c-unit option, case
insensitive
-x
,
--exact-match
Arguments to Search
options, to
--c-unit option, and to
--by-nut option must
exactly match food traits or nutrient
names, rather than using regular
expressions
-a
file
,
--add
file,
Add buffer to
file. To
specify multiple files, use multiple
--add options, e.g.
--add file1 --add
file2.
--edit
Delete original foods from corresponding source files, and add changed foods to corresponding source files
--delete
Delete original foods from corresponding source files
Other options
--force-valid
Ordinarily pantry automatically validates all XML files unless they are over 300 kilobytes in size; use this option to validate all XML files regardless of their size.
--skip-valid
Do not validate any XML files
-h
,
--help
Show brief help message and exit
--version
Print version information and exit
--dump
Display an internal Pantry variable and exit (see DUMP OPTIONS below)
Two types of reports are available. Food reports are
printed once per food in the buffer. Summary
reports are printed once for the entire buffer.
To print more than one report, specify each report
name, separated by dashes; for example,
--print names-nuts. Reports may
also be specified with an unambiguous specification
of the first letters of the report, such as
--print na-nu.
The following reports are available:
Food reports
names
Food names
traits
Food traits
units
Available units.
g,
oz, and
lb are not
printed as these are available for every
food.
measures
Like units, but
also shows the gram weight of every
unit. Shows all available units,
including g,
oz, and
lb.
nuts
Nutrients. For details of how pantry decides which nutrients to print, and what all the columns in this report mean, see the section called “Nutrient lists”.
blank
A blank line
paste
Each food name, printed with one available unit per line; quoted so that output may be easily pasted into subsequent pantry commands.
makes
The yield of a recipe: its total gram weight, description of yield, and number of servings. Prints warning for foods that are not recipes.
ingredients
Each ingredient of a recipe; prints warning for foods that are not recipes.
directions
A recipe's directions; prints warning for foods that are not recipes.
recipe
Same as
names-makes-blank-ingredients-blank-directions.
Summary reports
sum
Nutrient total of all nutrients in the buffer
groups
Group names, the number of foods in each group, and the total number of foods in the buffer
list
The nutrient list, along with its goals
A nutrient report has four columns. The first shows
the name of the nutrient. The second column shows the
amount (both the numeric amount and the units.) The
third column shows this nutrient's percent of a
nutrient goal, or blank if that nutrient has no
goal. The fourth column shows this nutrient's
percentage of the total nutrients in this buffer. The fourth column is not present in
sum reports.
The nutrient-list parameter
determines which nutrients are shown and in what
order, as well as determining what goals are used to
calculate the third column. The user may configure
her own nutrient-lists in
pantryrc.xml(5).
The following default nutrient lists are
available:
facts
Mimics the USA "Nutrition Facts" panel.
dv
Nutrients for which there is a USA FDA Daily Value.
all
All nutrients.
short
Only Calories,
Total Fat,
Total
Carbohydrate, and
Protein.
--dump takes a single argument,
which will print one of the following
pantry internal variables.
After printing the variable,
pantry will exit.
version
Version and copyright information; same
as --version.
pantryDTD
DTD used to validate Pantry XML files
rcDTD
DTD used to validate
pantryrc files
config
All configuration variables after the
pantryrc is
processed
Under certain circumstances, consumes about 100MB of RAM, though briefly, when buffer totals about 7,000 foods (the number in the USDA database.)
Files must be disk files; more specifically, they must support lseek(2). Using other files (such as stdin or stdout) will probably crash Pantry. Therefore, Pantry is not a filter and is not a perfect UNIX citizen.
Pantry's core file format is a dbm database, not a text file; this is a primary reason the above bug will likely never be fixed.
Report additional bugs to
<pantry-users@lists.sourceforge.net>.
I have used computers to analyze recipes and track food intake for years now. Years ago I still used Microsoft Windows. There are some good proprietary programs in Windows that are useful for food analysis, but even the best aren't extremely well-documented. So once I discovered that the USDA food database is freely available, Microsoft Access seemed a natural way for me to develop my own application.
My Access application went through many iterations. Then I switched to Linux, which taught me one big lesson: never rely on expensive proprietary software. I poked around to see if there were any good Linux food analysis programs. The only well-developed one I could find, NUT, was a console program. At the time this scared me, so I just did not have a food analysis program for quite some time.
As I gained more experience with Linux, I discovered that there were Access-like applications for it, such as OpenOffice Base (which is still fairly new) and Kexi. But I did not trust these applications much: I generally found that huge office-suite programs for Linux are not very well documented and tend to be bloated. True, Access and Microsoft Office are bloated too, but at least there are tons of tutorials available on the Net. So I never touched OpenOffice Base or Kexi.
Though the Linux console scared me at first, as I used Linux more and more I realized how powerful and simple the console is. I came to appreciate its flexibility and even its beauty. So I took another look at NUT. Though I realized it is an excellent program, I couldn't quite get along with it. It ran in an console, but it was menu-driven and seemed to have arbitrary limits that I didn't like. There are Web-based programs for this purpose too, but I always find them cumbersome to use and poorly designed.
Then I slowly learned of command-line tools such as cut and join. I was surprised to learn that one can build a relational database management system using shell tools. I also was inspired by other command-line oriented tools that did things that I previously thought would be possible to do well only in a GUI. An excellent example of this is Ledger, a program that I now find indispensable for tracking my finances. So I decided to try writing a shell-based food analysis program; I called the program bashfood and, later, Shellfood.
Shellfood worked okay when it was small, but as it grew it became unmanageable. Shells are great for certain things, but building large programs is not one of those things. Eventually it became apparent to me that I would need to switch to a different language. Python seemed a natural choice, as it is often recommended for beginners. It is also a full-fledged language used by professionals--Linux always impresses me because tools that cost several hundreds of dollars for Windows are available free on Linux--better tools, too.
So, the result of several months of work is Pantry. It has evolved constantly as I have used and refined it. It works even better than I had envisioned, though others might find it hopelessly complicated. We'll see. Let me know what you think! Report bugs, too--I know they must be in here. Send emails to pantry-users@lists.sourceforge.net.
If you like Pantry, be sure to check out other command-line programs like Ledger and Todo.txt because they can make your life a lot easier. Good text editors like Vim and Emacs are indispensable, as is a nice shell like Zsh.