iniparse.y

   1 %{
   2 /*
   3  * Copyright (c) 2000, Red Hat, Inc.
   4  *
   5  *     This program is free software; you can redistribute it and/or modify
   6  *     it under the terms of the GNU General Public License as published by
   7  *     the Free Software Foundation; either version 2 of the License, or
   8  *     (at your option) any later version.
   9  *
  10  *     A copy of the GNU General Public License can be found at
  11  *     http://www.gnu.org/
  12  *
  13  * Written by DJ Delorie <dj@cygnus.com>
  14  *
  15  */
  16
  17 /* Parse the setup.ini files.  inilex.l provides the tokens for this. */
  18
  19 #include <stdio.h>
  20 #include <stdlib.h>
  21
  22 #include "ini.h"
  23 #include "iniparse.h"
  24
  25 #define YYERROR_VERBOSE 1
  26 /*#define YYDEBUG 1*/
  27
  28 static Package *cp;
  29 static int trust;
  30 extern unsigned int setup_timestamp;
  31 extern int yylineno;
  32
  33 #define cpt (cp->info+trust)
  34
  35 %}
  36
  37 %token STRING
  38 %token SETUP_TIMESTAMP VERSION INSTALL SOURCE SDESC LDESC
  39 %token T_PREV T_CURR T_TEST T_UNKNOWN
  40
  41 %%
  42
  43 whole_file
  44  : setup_headers packages
  45  ;
  46
  47 setup_headers
  48  : setup_header setup_headers
  49  | /* empty */
  50  ;
  51
  52 setup_header
  53  : SETUP_TIMESTAMP STRING '\n' { setup_timestamp = strtoul ($2, 0, 0); }
  54  | error { yyerror ("unrecognized line in setup.ini headers"); } '\n'
  55  ;
  56
  57 packages
  58  : package packages
  59  | /* empty */
  60  ;
  61
  62 package
  63  : '@' STRING '\n'              { new_package($2); }
  64    lines
  65  | '\n'
  66  ;
  67
  68 lines
  69  : simple_line '\n' lines
  70  | simple_line
  71  ;
  72
  73 simple_line
  74  : VERSION STRING               { cpt->version = $2; }
  75  | SDESC STRING                 { cp->sdesc = $2; }
  76  | LDESC STRING                 { cp->ldesc = $2; }
  77  | INSTALL STRING STRING        { cpt->install = $2;
  78                                   cpt->install_size = atoi($3); }
  79  | SOURCE STRING STRING         { cpt->source = $2;
  80                                   cpt->source_size = atoi($3); }
  81  | T_PREV                       { trust = TRUST_PREV; }
  82  | T_CURR                       { trust = TRUST_CURR; }
  83  | T_TEST                       { trust = TRUST_TEST; }
  84  | T_UNKNOWN                    { trust = TRUST_UNKNOWN; }
  85  | /* empty */
  86  | error '\n' { yylineno --;
  87                 yyerror ("unrecognized line in package %s", cp->name);
  88                 yylineno ++;
  89               }
  90  ;
  91
  92 %%
  93
  94 Package *package = 0;
  95 int npackages = 0;
  96 static int maxpackages = 0;
  97
  98 Package *
  99 new_package (char *name)
 100 {
 101   if (npackages >= maxpackages)
 102     {
 103       maxpackages += 10;
 104       if (package)
 105         package = (Package *) realloc (package, maxpackages * sizeof (Package));
 106       else
 107         package = (Package *) malloc (maxpackages * sizeof (Package));
 108     }
 109   cp = package + npackages;
 110   npackages ++;
 111
 112   memset (cp, 0, sizeof (Package));
 113   cp->name = name;
 114
 115   trust = TRUST_CURR;
 116
 117   return cp;
 118 }