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System Macros/Branches and Decisions (view source)
Revision as of 10:05, 18 October 2008
, 10:05, 18 October 2008→<cmd>doifnextcharelse</cmd>: typo
===<cmd>doifnextcharelse</cmd>===
When Pragma ADE started using TeX in the late eighties, their first experiences with programming concerned a simple shell around LaTeX. The commands probably used most at Pragma ADE are the itemizing ones. One of those initial shell commands took care of an optional argument, that enabled the specification of the item symbol to be suedused. Without understanding anything they were able to locate a LaTeX macro that could be used to inspect the next character.
It is that macro that the ancester of the next one presented here. It executes one of two actions, dependant of the next character. Disturbing spaces and line endings, which are normally interpreted as spaces too, are skipped.
