src/cmdline.c

   1 /*
   2  * This program is free software: you can redistribute it and/or modify
   3  * it under the terms of the GNU General Public License as published by
   4  * the Free Software Foundation, either version 3 of the License, or
   5  * (at your option) any later version.
   6  *
   7  * This program is distributed in the hope that it will be useful,
   8  * but WITHOUT ANY WARRANTY; without even the implied warranty of
   9  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  10  * GNU General Public License for more details.
  11  *
  12  * You should have received a copy of the GNU General Public License
  13  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  14  */
  15 /* command line parser */
  16 #include "cmdline.h"
  17
  18 #include <windows.h>
  19
  20 #include <stdio.h>
  21 #include <stdlib.h>
  22 #include <string.h>
  23
  24
  25 #define MAX_ARGS  (256)
  26
  27 static char *kMyImage = NULL;
  28
  29 int k8argc = 0;
  30 char **k8argv = NULL;
  31
  32
  33 void cmdLineParseStr (const char *cmdline) {
  34   char ech, *cp;
  35   int maxLen = strlen(cmdline)+64;
  36   char *pbuf = malloc(maxLen+4);
  37   //
  38   /* skip spaces */
  39   if (k8argv) free(k8argv);
  40   k8argv = calloc(MAX_ARGS, sizeof(char *));
  41   k8argc = 0;
  42   while (*cmdline == ' ') ++cmdline;
  43   /* parse args */
  44   while (*cmdline) {
  45     /* check first char: quoted? */
  46     if (*cmdline == '"' || *cmdline == '\'') {
  47       /* quoted arg */
  48       ech = *cmdline++;
  49     } else {
  50       /* normal arg */
  51       ech = ' ';
  52     }
  53     /* collect chars */
  54     cp = pbuf;
  55     while (*cmdline && *cmdline != ech) {
  56       *cp++ = *cmdline++;
  57       if (ech != ' ' && cmdline[0] == ech && cmdline[1] == ech) {
  58         /* two quotes is just a quote */
  59         *cp++ = *cmdline++;
  60         ++cmdline;
  61       }
  62     }
  63     *cp = '\0';
  64     //fprintf(stderr, "[%s]\n", pbuf);
  65     if (k8argc < MAX_ARGS) k8argv[k8argc++] = strdup(pbuf);
  66     /* skip quote, if any */
  67     if (ech != ' ' && cmdline[0] == ech) ++cmdline;
  68     /* skip spaces */
  69     while (*cmdline == ' ') ++cmdline;
  70   }
  71   free(pbuf);
  72   //
  73   if (kMyImage == NULL) {
  74     kMyImage = calloc(MAX_PATH+1, 1);
  75     if (kMyImage != NULL) {
  76       GetModuleFileName(NULL, kMyImage, MAX_PATH);
  77       if (k8argv[0]) free(k8argv[0]);
  78       k8argv[0] = strdup(kMyImage);
  79     }
  80   }
  81 }
  82
  83
  84 void cmdLineParse (void) {
  85   return cmdLineParseStr(GetCommandLine());
  86 }