8 Feb 18:25
LaTeX macro question
Hello,
I'm trying to write an environment that does the following things: (1) saves the verbatim text between the
\begin and \end commands as a list of tokens, (2) computes a simple hash function on that token list to
generate a value (so as to be able to detect when the content changes), and (3) uses \scantokens to
re-process that list of tokens so as to typeset it "properly".
Right now, I'm having problems with (1) and (3) — I just can't seem to figure out how to save the verbatim
text and then process it with \scantokens.
I know the following lets me save verbatim text:
\usepackage{fancyvrb}
\begin{SaveVerbatim}{asdf}
\begin{tikzpicture}
\draw (0,0) -- (0,1) -- (1,1) -- cycle;
\end{tikzpicture}
\end{SaveVerbatim}
And now I can typeset that as many times as I want via \UseVerbatim{asdf}.
But
\scantokens{\UseVerbatim{asdf}}
Just reproduces the same output as \UseVerbatim{asdf}
and
(Continue reading)
>
> Since I have been a hard-core emacs user, I gave this issue a serious
> thought before leaving emacs, and I concluded that we need to switch
> our paradigm, by having LFs only when there is a logical need, rather
> than when the text hits the current accidental right margin of the
> window you are working on when creating/editing the text.
I understand that soft-wrapped lines is a good invention in
WYSIWYG word processors (where it depends on document width,
not window width!), but I don't see the point of it in latex
source code:
- with long soft-wrapped lines, go-to-line functionality like
typing 'e' at a tex error, is less efficient;
- diff becomes considerably less useful when differences are
detected inside a 700-char line forming a paragraph instead of
in a 70-char line;
- comment chars work on such "paragraphs" instead of on lines,
and if one day the file is hardwrapped (e.g. by TeXShop's
shift-cmd-H, or by an email transmission), it can really be
screwed up, since a comment that used to affect 700 chars now
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