trusty (3) cgen.3tcl.gz

NAME

       fileutil::magic::cgen - Generator core for compiler of magic(5) files

SYNOPSIS

       package require Tcl  8.4

       package require fileutil::magic::cgen  ?1.0?

       package require fileutil::magic::rt  ?1.0?

       package require struct::tree

       package require struct::list

       ::fileutil::magic::cgen::2tree script

       ::fileutil::magic::cgen::treedump tree

       ::fileutil::magic::cgen::treegen tree node

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DESCRIPTION

       This  package  provides  the generator backend for a compiler of magic(5) files into recognizers based on
       the fileutil::magic::rt recognizer runtime package. For the compiler frontend using  this  generator  see
       the package fileutil::magic::cfront.

COMMANDS

       ::fileutil::magic::cgen::2tree script
              This  command  converts  the recognizer specified by the script into a tree and returns the object
              command of that tree as its result. It uses the package struct::tree for the tree.

              The script is in the format specified by magic(5).

       ::fileutil::magic::cgen::treedump tree
              This command takes a tree as generated by  ::fileutil::magic::cgen::2tree  and  returns  a  string
              encoding the tree for human consumption, to aid in debugging.

       ::fileutil::magic::cgen::treegen tree node
              This command takes a tree as generated by ::fileutil::magic::cgen::2tree and returns a Tcl script,
              the recognizer for the file types represented by the sub-tree rooted at the node.   The  generated
              script   makes  extensive  use  of  the  commands  provided  by  the  recognizer  runtime  package
              fileutil::magic::rt to perform its duties.

BUGS, IDEAS, FEEDBACK

       This document, and the package it describes, will undoubtedly contain bugs and  other  problems.   Please
       report    such    in    the    category    fileutil    ::    magic    of    the    Tcllib   SF   Trackers
       [http://sourceforge.net/tracker/?group_id=12883].  Please also report any ideas for enhancements you  may
       have for either package and/or documentation.

SEE ALSO

       file(1), fileutil, magic(5)

KEYWORDS

       file recognition, file type, file utilities, mime, type

CATEGORY

       Programming tools