git-fast-import.txt: --relative-marks takes no parameter
[git/dscho.git] / alias.c
blobeb9f08b912b2089d434926fc6083ac5ab90c73bc
1 #include "cache.h"
3 static const char *alias_key;
4 static char *alias_val;
6 static int alias_lookup_cb(const char *k, const char *v, void *cb)
8         if (!prefixcmp(k, "alias.") && !strcmp(k+6, alias_key)) {
9                 if (!v)
10                         return config_error_nonbool(k);
11                 alias_val = xstrdup(v);
12                 return 0;
13         }
14         return 0;
17 char *alias_lookup(const char *alias)
19         alias_key = alias;
20         alias_val = NULL;
21         git_config(alias_lookup_cb, NULL);
22         return alias_val;
25 #define SPLIT_CMDLINE_BAD_ENDING 1
26 #define SPLIT_CMDLINE_UNCLOSED_QUOTE 2
27 static const char *split_cmdline_errors[] = {
28         "cmdline ends with \\",
29         "unclosed quote"
32 int split_cmdline(char *cmdline, const char ***argv)
34         int src, dst, count = 0, size = 16;
35         char quoted = 0;
37         *argv = xmalloc(sizeof(char *) * size);
39         /* split alias_string */
40         (*argv)[count++] = cmdline;
41         for (src = dst = 0; cmdline[src];) {
42                 char c = cmdline[src];
43                 if (!quoted && isspace(c)) {
44                         cmdline[dst++] = 0;
45                         while (cmdline[++src]
46                                         && isspace(cmdline[src]))
47                                 ; /* skip */
48                         ALLOC_GROW(*argv, count+1, size);
49                         (*argv)[count++] = cmdline + dst;
50                 } else if (!quoted && (c == '\'' || c == '"')) {
51                         quoted = c;
52                         src++;
53                 } else if (c == quoted) {
54                         quoted = 0;
55                         src++;
56                 } else {
57                         if (c == '\\' && quoted != '\'') {
58                                 src++;
59                                 c = cmdline[src];
60                                 if (!c) {
61                                         free(*argv);
62                                         *argv = NULL;
63                                         return -SPLIT_CMDLINE_BAD_ENDING;
64                                 }
65                         }
66                         cmdline[dst++] = c;
67                         src++;
68                 }
69         }
71         cmdline[dst] = 0;
73         if (quoted) {
74                 free(*argv);
75                 *argv = NULL;
76                 return -SPLIT_CMDLINE_UNCLOSED_QUOTE;
77         }
79         ALLOC_GROW(*argv, count+1, size);
80         (*argv)[count] = NULL;
82         return count;
85 const char *split_cmdline_strerror(int split_cmdline_errno) {
86         return split_cmdline_errors[-split_cmdline_errno-1];