t4ht: postprocessor for tex4ht

The compilation of this file requires the packages ProTEX and AlProTEX.
   1 Outline
      The Cases
      char, signed char, unsigned char (gcc man)
      EOF Character
   2 Stop on tex4ht.c Err
   3 Platform-dependent Code
      PreProcessor Directives
      KPATHSEA
      Compilers
      DJGPP
      Slashes n Directory Pathes
   4 Command-Line Options
      Available Options
      Scanning the Options
   5 Identify the Empty Pictures
   6 Process Gifs
      The Scripts
      Identifying the requests
      General Pictures
      Pictorial Symbols
      The Conversion Code
      Filter
      Ignore/Noignore Commands
   7 CopyTo files
   8 post-process ext files
   9 post-process files
   10 User Commands
   11 CSS
      Record HTFCSS Entries from the lg File
      Font-Css-Plus Entries from The lg File
      Imported Css File
      Preliminary Processing of the CSS File
      Cotributors to the Css File
      Contributions from /Css Commands
      Contributions From Font-Size
      Contributions to Fonts
      Font-Css Contributions
   12 Load Env File
      Retrieve Info
      Utilities for Retrieving Info
      Open Directory
      kpathsea vs kpse-find-file
      Root Directory
      Env File from Command Line
      Env File from Location of t4ht.c
   13 Open Files
      General
   14 Utilities
      Error and Warning Messages
      Signals
      System Calls
      Strings Concat and compare
      String into Int
      Dynamic Memory Alloc
      myfseek
      Pattern Recognition Functions
      Shorthands and Mnemonics