kolibrios/programs/system/shell/modules/module_parameters.c

int parameters_prepare(char *param, char* argv[]) {
     int i, param_len;
     int argc = 1;
     int quote = 0;
     int argv_len;

     param_len = strlen(param);
     if ( param_len == 0 )
     return 0;

     argv[0] = (char*) malloc(4096);

     argv_len = 0;
     for (i = 0; i < param_len; i++) {
          switch (param[i]) {
          case '\\':
               if (param[i+1]!='\0') {
                    switch(param[i+1]) {

                    case 'n':
                         argv[argc-1][argv_len] = '\n';
                         argv_len++;
                         i++;
                         break;

                    case 't':
                         argv[argc-1][argv_len] = '\t';
                         argv_len++;
                         i++;

                    case '\\':
                    case '\'':
                    case '"':
                    case '?':
                         argv[argc-1][argv_len] = param[i+1];
                         argv_len++;
                         i++;
                         break;

                    default:
                         i++;
                    };
               }
               break;

          case '"':
               if (quote == 0)
                    quote = 1;
               else {
                    quote = 0;
                    argv[argc-1][argv_len] = '\0';
                    argc++;
                    argv[argc-1] = (char*) malloc(4096);
                    argv[argc-1][argv_len] = '\0';
                    argv_len = 0;
                    }
               break;

          case 9:
          case 32:
               if (quote == 0) {
                    if ( ( param[i+1] != 32) || ( param[i+1] != 9) ) {
                         if (argv_len != 0) {
                              argv[argc-1][argv_len] = '\0';
                              argc++;
                              argv[argc-1] = (char*) malloc(4096);
                              argv[argc-1][argv_len] = '\0';
                              argv_len = 0;
                         }
                    }
               } else {
                    argv[argc-1][argv_len] = param[i];
                    argv_len++;
               }
               break;
          default:
               argv[argc-1][argv_len] = param[i];
               argv_len++;
               break;

          }; // switch end
     } // for end

     argv[argc-1][argv_len] = '\0';

     if ( strlen(argv[argc-1]) == 0 ) {
          free(argv[argc-1]);
          argc--;
     }

     return argc;
}


void parameters_free(int argc, char* argv[]) {
     int i;
     for (i = 0; i < argc; i++) free(argv[i]);
}