fileutil::magic::cgen(3tcl) file utilities fileutil::magic::cgen(3tcl) 







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








package require Tcl 8.4


package require fileutil::magic::cgen ?1.2.0?


package require fileutil::magic::rt ?1.2.0?


package require struct::tree 


package require struct::list 


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


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


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












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.









  
::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.










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 Trackers
    [http://core.tcl.tk/tcllib/reportlist]. Please also report any ideas for
    enhancements you may have for either package and/or documentation.


When proposing code changes, please provide unified diffs,
    i.e the output of diff -u.


Note further that attachments are strongly preferred over
    inlined patches. Attachments can be made by going to the Edit form of
    the ticket immediately after its creation, and then using the left-most
    button in the secondary navigation bar.








file(1), fileutil, magic(5)








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








Programming tools







  

    1.2.0
    tcllib