DETEX(1) General Commands Manual DETEX(1) NAME detex - a filter to strip TeX commands from a .tex file. SYNOPSIS detex [ -clnstw ] [ -e environment-list ] [ filename[.tex] ... ] DESCRIPTION Detex reads each file in sequence, removes all comments and TeX control se- quences and writes the remainder on the standard output. All text in math mode and display mode is removed. By default, detex follows \input com- mands. If a file cannot be opened, a warning message is printed and the command is ignored. If the -n option is used, no \input or \include com- mands will be processed. This allows single file processing. If no input file is given on the command line, detex reads from standard input. If the magic sequence ``\begin{document}'' appears in the text, detex as- sumes it is dealing with LaTeX source and detex recognizes additional con- structs used in LaTeX. These include the \include and \includeonly com- mands. The -l option can be used to force LaTeX mode and the -t option can be used to force TeX mode regardless of input content. Text in various environment modes of LaTeX is ignored. The default modes are array, eqnarray, equation, longtable, picture, tabular and verbatim. The -e option can be used to specify a comma separated environment-list of environments to ignore. The list replaces the defaults so specifying an empty list effectively causes no environments to be ignored. The -c option can be used in LaTeX mode to have detex echo the arguments to \cite, \ref, and \pageref macros. This can be useful when sending the out- put to a style checker. Detex assumes the standard character classes are being used for TeX. Detex allows white space between control sequences and magic characters like `{' when recognizing things like LaTeX environments. The -r option tries to naively replace $..$, $$..$$, \(..\) and \[..\] with nouns and verbs (in particular, "noun" and "verbs") in a way that keeps sentences readable. If the -w flag is given, the output is a word list, one `word' (string of two or more letters and apostrophes beginning with a letter) per line, and all other characters ignored. Without -w the output follows the original, with the deletions mentioned above. Newline characters are preserved where possible so that the lines of output match the input as closely as possi- ble. The -1 option will prefix each printed line with `filename:linenumber:` in- dicating where that line is coming from in terms of the original (La)TeX document. The TEXINPUTS environment variable is used to find \input and \include files. Like TeX, it interprets a leading or trailing `:' as the default TEXINPUTS. It does not support the `//' directory expansion magic se- quence. Detex now handles the basic TeX ligatures as a special case, replacing the ligatures with acceptable character4 substitutes. This eliminates spelling errors introduced by merely removing them. The ligatures are \aa, \ae, \oe, \ss, \o, \l (and their upper-case equivalents). The special "dotless" characters \i and \j are also replaced with i and j respectively. Note that previous versions of detex would replace control sequences with a space character to prevent words from running together. However, this caused accents in the middle of words to break words, generating "spelling errors" that were not desirable. Therefore, the new version merely removes these accents. The old functionality can be essentially duplicated by us- ing the -s option. SEE ALSO tex(1) DIAGNOSTICS Nesting of \input is allowed but the number of opened files must not exceed the system's limit on the number of simultaneously opened files. Detex ig- nores unrecognized option characters after printing a warning message. AUTHOR Originally written by Daniel Trinkle, Computer Science Department, Purdue University. Maintained by Piotr Kubowicz <https://github.com/pkubowicz/opendetex>. BUGS Detex is not a TeX interpreter (it essentially reads the input with a (f)lex program), so it is easily confused by some constructs. Most errors result in too much rather than too little output. Running LaTeX source without a ``\begin{document}'' through detex may pro- duce errors. Suggestions for improvements are (mildly) encouraged. Purdue University August 12, 1993 DETEX(1)
NAME | SYNOPSIS | DESCRIPTION | SEE ALSO | DIAGNOSTICS | AUTHOR | BUGS
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