Andrew's git - gitweb.git/blob

   1#include "cache.h"
   2
   3char *alias_lookup(const char *alias)
   4{
   5        char *v = NULL;
   6        struct strbuf key = STRBUF_INIT;
   7        strbuf_addf(&key, "alias.%s", alias);
   8        git_config_get_string(key.buf, &v);
   9        strbuf_release(&key);
  10        return v;
  11}
  12
  13#define SPLIT_CMDLINE_BAD_ENDING 1
  14#define SPLIT_CMDLINE_UNCLOSED_QUOTE 2
  15static const char *split_cmdline_errors[] = {
  16        "cmdline ends with \\",
  17        "unclosed quote"
  18};
  19
  20int split_cmdline(char *cmdline, const char ***argv)
  21{
  22        int src, dst, count = 0, size = 16;
  23        char quoted = 0;
  24
  25        *argv = xmalloc(sizeof(**argv) * size);
  26
  27        /* split alias_string */
  28        (*argv)[count++] = cmdline;
  29        for (src = dst = 0; cmdline[src];) {
  30                char c = cmdline[src];
  31                if (!quoted && isspace(c)) {
  32                        cmdline[dst++] = 0;
  33                        while (cmdline[++src]
  34                                        && isspace(cmdline[src]))
  35                                ; /* skip */
  36                        ALLOC_GROW(*argv, count + 1, size);
  37                        (*argv)[count++] = cmdline + dst;
  38                } else if (!quoted && (c == '\'' || c == '"')) {
  39                        quoted = c;
  40                        src++;
  41                } else if (c == quoted) {
  42                        quoted = 0;
  43                        src++;
  44                } else {
  45                        if (c == '\\' && quoted != '\'') {
  46                                src++;
  47                                c = cmdline[src];
  48                                if (!c) {
  49                                        free(*argv);
  50                                        *argv = NULL;
  51                                        return -SPLIT_CMDLINE_BAD_ENDING;
  52                                }
  53                        }
  54                        cmdline[dst++] = c;
  55                        src++;
  56                }
  57        }
  58
  59        cmdline[dst] = 0;
  60
  61        if (quoted) {
  62                free(*argv);
  63                *argv = NULL;
  64                return -SPLIT_CMDLINE_UNCLOSED_QUOTE;
  65        }
  66
  67        ALLOC_GROW(*argv, count + 1, size);
  68        (*argv)[count] = NULL;
  69
  70        return count;
  71}
  72
  73const char *split_cmdline_strerror(int split_cmdline_errno)
  74{
  75        return split_cmdline_errors[-split_cmdline_errno - 1];
  76}