sty2dtx /

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    sty2dtx -- Converts a LaTeX .sty file to a documented .dtx file

    Version: v2.3

    Copyright (c) 2010-2012 Martin Scharrer <>

    This program is free software: you can redistribute it and/or modify it
    under the terms of the GNU General Public License as published by the
    Free Software Foundation, either version 3 of the License, or (at your
    option) any later version.

    This program is distributed in the hope that it will be useful, but
    WITHOUT ANY WARRANTY; without even the implied warranty of
    Public License for more details.

    You should have received a copy of the GNU General Public License along
    with this program. If not, see <>.

    Converts a .sty file (LaTeX package) to .dtx format (documented LaTeX
    source), by surrounding macro definitions with 'macro' and 'macrocode'
    environments. The macro name is automatically inserted as an argument to
    the 'macro' environemnt. Code lines outside macro definitions are
    wrapped only in 'macrocode' environments. Empty lines are removed. The
    script is not thought to be fool proof and 100% accurate but rather as a
    good start to convert undocumented style files to .dtx files.

  Basic Usage
         perl infile [infile ...] outfile


         perl < file.sty > file.dtx

  Supported Definitions
    The following macro definitions are detected when they are at the start
    of a line (can be prefixed by \global, \long, \protected and/or \outer):

        \def   \edef   \gdef   \xdef
        \newcommand{\name}     \newcommand*{\name}
        \newcommand\name       \newcommand*\name
        \renewcommand{\name}   \renewcommand*{\name}
        \renewcommand\name     \renewcommand*\name
        \providecommand{\name} \providecommand*{\name}
        \providecommand\name   \providecommand*\name
        \@namedef{\name}       \@namedef\name

    The following environment definitions are detected when they are at the
    start of a line:

        \newenvironment{name}  \renewenvironemnt{name}  \provideenvironment{name}

    The macro and environment definition must either end at the same line or
    with a '"}"' on its own on a line.

      sty2dtx [<options>] [--<VAR>=<VALUE> ...] [--] [<infile(s)>] [<outfile>]

    * can be '"-"' for STDIN or STDOUT, which is the default if no files are

    * multiple input files are merged to one output file

    Variables can be defined using



      --<VAR> <VALUE>

    and will be used for substitutions in the template file.

   Common variables:
          author, email, maintainer, year (for copyright),
          version, date, description (of package/class),
          type (either 'package' default or 'class'),
          filebase (automatically set from output or input file name),

    -h            Print this help text
    -H            Print extended help
    -V            Print version and copyright
    -v            Be verbose
    -o output     Use given file as output
    -O            Overwrite already existing output file(s)
    -B            Use basename of single input file for output file
    -I            Also create .ins (install) file
    -c            Only use code section (like v1.0)
    -r            Remove existing 'macro', 'macrocode', etc. environments.
    -R            Do not remove existing 'macro', 'macrocode', etc.
    -i ins-file   Create .ins file with given name
    -t template   Use this file as template instead of the default one
    -T template   Use this file as template for the .ins file
    -e file       Export default .dtx template to file and exit
    -E file       Export default .ins template to file and exit
    -D            Use current date as file date
    -F file       Read more options and variables from file.
    -N            Do not read default config file; must be the first option

  Config files
    A default config file either named 'sty2dtx.cfg' or '.sty2dtx.cfg' is
    searched in the current directory, the users home directory and the
    directory of this script, in this order. The first one found is loaded.
    If none is found the 'texmf' tree is searched for a 'sty2dtx.cfg' config
    file. As with -F files the config file should contain one option or
    variable per line. Lines starting with '"%"' or '"#"' are ignored.

    Produce 'file.dtx' from 'file.sty': < file.sty > file.dtx

    or file.sty file.dtx

    or -B file.sty

    Produce 'file.dtx' and 'file.ins' from 'file.sty': -I file.sty file.dtx

    or file.sty -i file.sty file.dtx

    or -IB file.sty

    Set custom variable values: --author Me --email mypkg.sty mypkg.dtx

    Produce DTX file for a class: --type class mycls.sty mycls.dtx

    Martin Scharrer


    WWW: <>