shrinkcss.c

/* */
This source file includes following definitions.
main
   1 /* Copyright (c) 2023 Amelia Campbell <ame@psianesia.org>
   2 **
   3 ** Redistribution and use in source and binary forms, with or without
   4 ** modification, are permitted provided that the following conditions
   5 ** are met:
   6 ** 1. Redistributions of source code must retain the above copyright
   7 **    notice, this list of conditions and the following disclaimer.
   8 ** 2. Redistributions in binary form must reproduce the above copyright
   9 **    notice, this list of conditions and the following disclaimer in the
  10 **    documentation and/or other materials provided with the distribution.
  11 **
  12 ** THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  13 ** ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  14 ** IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  15 ** ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  16 ** FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  17 ** DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  18 ** OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  19 ** HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  20 ** LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  21 ** OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  22 ** SUCH DAMAGE.
  23 */
  24 
  25 
  26 #include <stdio.h>
  27 #include <string.h>
  28 
  29 int
  30 main( int argc, char *argv[] )
  31     {
  32     char line[2000];
  33     char *cp, *cp2;
  34     int prop = 0, select = 1, comment = 0, putspc = 0, nstart;
  35 
  36     (void) argc;
  37     (void) argv;
  38 
  39     while ( fgets( line, sizeof(line), stdin ) != NULL )
  40         {
  41         cp = line;
  42         nstart = 0;
  43         while ( *cp != '\0' )
  44             {
  45             if ( comment )
  46                 {
  47                 cp2 = strstr( cp, "*/" );
  48                 if ( cp2++ != NULL )
  49                     cp = cp2, comment = 0;
  50                 goto retry;
  51                 }
  52 
  53             switch ( *cp )
  54                 {
  55                 case '\r':
  56                 case '\n': goto retry   ;
  57                 case '\t': *cp = ' '    ;
  58                 case ' ' : if ( ( *(cp + 1) == '{' || *(cp + 1) == ';' )
  59                                 || ( ! nstart      ||   putspc )
  60                                 || ( ! prop        && ! select ) ) goto retry;
  61                            putspc = 1   ; goto put2     ;
  62                 case '}' : select = 1   ; goto put      ;
  63                 case ':' : prop   = 1   ; nstart  = 0   ;   goto put    ;
  64                 case '{' : select = 0   ; goto put      ;
  65                 case ';' : prop   = 0   ; goto put      ;
  66                 case '/' : if (*++cp == '*') { comment = 1; goto retry; }
  67                            else              { cp--       ;             }
  68                 default:
  69 put:            putspc = 0;
  70 put2:           *cp != ':' ? nstart = 1                 :0;
  71                 ! comment  ? fputc( *cp, stdout )       :0; break       ;
  72                 }
  73 retry:          cp++;
  74             }
  75         }
  76 
  77         return 0;
  78     }
/* */
root/shrinkcss.c

DEFINITIONS
