Difference between revisions of "Enumerations"
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− | You can also use a reference to an item, just like a chapter or section. | + | You can also use a reference to an item, just like a chapter or section. See also [[References]]. |
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Revision as of 11:07, 29 April 2009
The most basic form of using enumerations in ConTeXt is
\startitemize \item here we list the points, \item one after the other. \stopitemize
The \startitemize command takes optional parameters (see the documentation of \startitemgroup for a complete list), for example a number conversion may be given, with the following predefined types:
n or N | Usually the default: a numbered list |
m | A numbered list, with lowercase (“medieval”, aka “oldstyle”) numbers. |
1 … 8 | Different kinds of bullets. All items get the same symbol. |
a | Items are numbered a., b., c., … |
A | Items are numbered A., B., C., … |
AK | Items are numbered A., B., C., …, in small caps. |
r | Items are numbered in lowercase Roman numerals. |
R | Items are numbered in uppercase Roman numerals. |
KR | Items are numbered in uppercase Roman numerals, small caps style. |
It is also possible to define your own number conversions; see User-Defined Enumerations. If you have loaded the Chinese module, you can also use c (and some more) for Chinese numbers.
Additional parameters include
- continue (start where the previous itemization was finished, to allow text injections),
- packed (less vertical space between items),
- inmargin (place enumeration symbols into the margin), and
- text (paragraph enumerations, formats the items as a running text).
To change the general layout of enumerations, there is \setupitemize. It accepts an integer as its first parameter to denote for which level of itemization the subsequent settings should apply. There is an example below.
For finer control, it is advisable to create new types of itemization, using the command \defineitemgroup (which unfortunately seems undocumented). For example, something similar to the LaTeX itemize environment can be defined as follows:
\defineitemgroup[ltxitm][levels=5] % \setupitemgroup[ltxitm][1][1] \setupitemgroup[ltxitm][2][2] \setupitemgroup[ltxitm][3][3,packed] \setupitemgroup[ltxitm][4][4,packed] \setupitemgroup[ltxitm][5][5,packed] % \starttext % \startltxitm \item Consider \startltxitm \item this part \item and also these subpoints: \startltxitm \item one \item two \item three \startltxitm \item threeandahalf \stopltxitm \item four \stopltxitm \stopltxitm \stopltxitm % \stoptext
gives
Contents
Changing the Signs
For a enumeration like this:
you must fill \setupitemize like this:
- you get parentheses by left=(, right=)
- margin is from left margin to start of item text
- stopper is the dot (or whatever) after the "number"
\setupitemize[left=(, right=), margin=4em, stopper=] \startitemize[a] \item one item, \item next item. \stopitemize
You find more about \setupitemize at \defineitemgroup.
Alternate Multicolumn Format
Hans posted a solution to the list for a multicolumn enumeration that counts across then down, instead of down then across. When he posted it (Dec 21, 2005), he said the joinedup option does not work, but he would fix that. This is a version without the tufte and zapf text
\starttext Some previous sentence before the list \startitemize[columns,n,joinedup] \item one \item two \stopitemize \startitemize[continue,columns,joinedup] \item one \item two \stopitemize \startitemize[continue,columns,joinedup] \item one \item two \stopitemize And the text continues after the list \stoptext
Whitespace around itemize
This is the way how you can set spacing before and after itemize when working with
\setupwhitespace[big]
An option nowhite comes in handy:
paragraph before \startitemize[joinedup,nowhite,after] \item first \item second \stopitemize paragraph after
These are all the four possible combinations of whitespace settings that you might want to use:
Randomizing items
It is possible to make ConTeXt randomize the items in enumerations; this can come handy when, e.g., typesetting tests. You have to add a random option to \startitemize. There are two caveats:
- You have to say \startitem ... \stopitem instead of \item ... .
- Somehow the first item does not get randomized. (I learned from the mailing list - thanks, Aditya! - that adding a \nextrandom somewhere earlier helps.)
Example:
\nextrandom \startitemize[random] \startitem A \stopitem \startitem B \stopitem \startitem C \stopitem %\startitem F \stopitem \stopitemize
Referring to items
You can also use a reference to an item, just like a chapter or section. See also References.
\starttext \startitemize[n] \item A \item[foo] B \item C \stopitemize \dots As seen in \in{item}[foo] on page \at{page}[foo], B is teh shizzle. \stoptext