Does a list of the non-letter ASCII symbol macros exist?
\documentclass[a4paper]{article}
\parindent0pt
\begin{document}
\ttfamily
\ifx\^^@\undefined\else
0: \string\^^@=\meaning\^^@\par
\fi
\count0=1
\loop
\ifnum\catcode\count0=11
\else
{\lccode`a=\count0
\lowercase{
\ifcsname a\endcsname
\the\count0:
\expandafter\string\csname a\endcsname=%
\expandafter\meaning\csname a\endcsname\par
\fi}%
}%
\fi
\ifnum\count0<255
\advance\count0 1
\repeat
\end{document}
Translation of David's list:
- 9/
\^^I
(horizontal tabulator): explicit space as\␣
- 13/
\^^M
(carriage return): explicit space as\␣
- 32/
\␣
(backslash, space): set an explicit space - 33/
\!
: a negative thin space in math mode - 34/
\"
: diaeresis accent in text mode - 35/
\#
: hash sign in text mode - 36/
\$
: dollar in text or math mode - 37/
\%
: percent sign in text mode - 38/
\&
: ampersand in text mode - 39/
\'
: acute accent in text mode - 40/
\(
: begin inline math - 41/
\)
: end inline math - 42/
\*
: a line break point between factors of a product; if there is a line break, then the previous line ends with a thin space followed by a multiplication sign (×). - 44/
\,
: thin space in math mode - 45/
\-
: explicit hyphenation point with hyphen if hyphenated and without otherwise - 46/
\.
: dot accent in text mode - 47/
\/
: space for italic correction - 58/
\:
: medium space in math mode - 59/
\;
: thick space in math mode - 61/
\=
: macron accent in text mode, or in environmenttabbing
: set tabulator - 62/
\>
: medium space in math, or in environmenttabbing
: advance to next tabulator stop - 64/
\@
: sets the space factor to 1000, typical usage is after abbreviation periods following lowercase letters, e.g.:Mr.\@ John Doe
- 91/
\[
: begin unnumbered display math - 92/
\\
: line end/new line - 93/
\]
: end unnumbered display math - 94/
\^
: circumflex accent in text mode - 95/
\_
: underscore in math and text mode - 96/
\`
: grave accent in text mode - 123/
\{
: left curly brace in math mode - 124/
\|
: vertical line as delimiter in math mode - 125/
\}
: right curly brace in math mode - 126/
\~
: tilde accent in text mode