git/alias.c at master · LinuxSystemAdmin/git · GitHub

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#include"cache.h"
#include"config.h"

structconfig_alias_data {
constchar*alias;
char*v;
};

staticintconfig_alias_cb(constchar*key, constchar*value, void*d)
{
structconfig_alias_data*data=d;
constchar*p;

if (skip_prefix(key, "alias.", &p) && !strcasecmp(p, data->alias))
returngit_config_string((constchar**)&data->v, key, value);

return0;
}

char*alias_lookup(constchar*alias)
{
structconfig_alias_datadata= { alias, NULL };

read_early_config(config_alias_cb, &data);

returndata.v;
}

#defineSPLIT_CMDLINE_BAD_ENDING 1
#defineSPLIT_CMDLINE_UNCLOSED_QUOTE 2
staticconstchar*split_cmdline_errors[] = {
"cmdline ends with \\",
"unclosed quote"
};

intsplit_cmdline(char*cmdline, constchar***argv)
{
intsrc, dst, count=0, size=16;
charquoted=0;

ALLOC_ARRAY(*argv, size);

/* split alias_string */
	(*argv)[count++] =cmdline;
for (src=dst=0; cmdline[src];) {
charc=cmdline[src];
if (!quoted&&isspace(c)) {
cmdline[dst++] =0;
while (cmdline[++src]
&&isspace(cmdline[src]))
 ; /* skip */
ALLOC_GROW(*argv, count+1, size);
 (*argv)[count++] =cmdline+dst;
 } elseif (!quoted&& (c=='\''||c=='"')) {
quoted=c;
src++;
 } elseif (c==quoted) {
quoted=0;
src++;
 } else {
if (c=='\\'&&quoted!='\'') {
src++;
c=cmdline[src];
if (!c) {
FREE_AND_NULL(*argv);
return-SPLIT_CMDLINE_BAD_ENDING;
 }
 }
cmdline[dst++] =c;
src++;
 }
	}

cmdline[dst] =0;

if (quoted) {
FREE_AND_NULL(*argv);
return-SPLIT_CMDLINE_UNCLOSED_QUOTE;
	}

ALLOC_GROW(*argv, count+1, size);
	(*argv)[count] =NULL;

returncount;
}

constchar*split_cmdline_strerror(intsplit_cmdline_errno)
{
returnsplit_cmdline_errors[-split_cmdline_errno-1];
}