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rearrange a few things

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This commit is contained in:
Lennart Poettering 2009-02-04 17:17:32 +01:00
parent d6dd907cc8
commit 078a8d583f
1 changed files with 91 additions and 86 deletions
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177
src/pulsecore/modargs.c
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@ -79,106 +79,111 @@ static int add_key_value(pa_hashmap *map, char *key, char *value, const char* co
} }
pa_modargs *pa_modargs_new(const char *args, const char* const* valid_keys) { pa_modargs *pa_modargs_new(const char *args, const char* const* valid_keys) {
pa_hashmap *map = NULL; enum {
WHITESPACE,
KEY,
VALUE_START,
VALUE_SIMPLE,
VALUE_DOUBLE_QUOTES,
VALUE_TICKS
} state;
const char *p, *key = NULL, *value = NULL;
size_t key_len = 0, value_len = 0;
pa_hashmap *map;
map = pa_hashmap_new(pa_idxset_string_hash_func, pa_idxset_string_compare_func); map = pa_hashmap_new(pa_idxset_string_hash_func, pa_idxset_string_compare_func);
if (args) { if (!args)
enum { return (pa_modargs*) map;
WHITESPACE,
KEY,
VALUE_START,
VALUE_SIMPLE,
VALUE_DOUBLE_QUOTES,
VALUE_TICKS
} state;
const char *p, *key, *value; state = WHITESPACE;
size_t key_len = 0, value_len = 0;
key = value = NULL; for (p = args; *p; p++) {
state = WHITESPACE; switch (state) {
for (p = args; *p; p++) {
switch (state) { case WHITESPACE:
case WHITESPACE: if (*p == '=')
if (*p == '=') goto fail;
else if (!isspace(*p)) {
key = p;
state = KEY;
key_len = 1;
}
break;
case KEY:
if (*p == '=')
state = VALUE_START;
else if (isspace(*p))
goto fail;
else
key_len++;
break;
case VALUE_START:
if (*p == '\'') {
state = VALUE_TICKS;
value = p+1;
value_len = 0;
} else if (*p == '"') {
state = VALUE_DOUBLE_QUOTES;
value = p+1;
value_len = 0;
} else if (isspace(*p)) {
if (add_key_value(map, pa_xstrndup(key, key_len), pa_xstrdup(""), valid_keys) < 0)
goto fail; goto fail;
else if (!isspace(*p)) { state = WHITESPACE;
key = p; } else {
state = KEY; state = VALUE_SIMPLE;
key_len = 1; value = p;
} value_len = 1;
break; }
case KEY: break;
if (*p == '=')
state = VALUE_START; case VALUE_SIMPLE:
else if (isspace(*p)) if (isspace(*p)) {
if (add_key_value(map, pa_xstrndup(key, key_len), pa_xstrndup(value, value_len), valid_keys) < 0)
goto fail; goto fail;
else state = WHITESPACE;
key_len++; } else
break; value_len++;
case VALUE_START: break;
if (*p == '\'') {
state = VALUE_TICKS; case VALUE_DOUBLE_QUOTES:
value = p+1; if (*p == '"') {
value_len = 0; if (add_key_value(map, pa_xstrndup(key, key_len), pa_xstrndup(value, value_len), valid_keys) < 0)
} else if (*p == '"') { goto fail;
state = VALUE_DOUBLE_QUOTES; state = WHITESPACE;
value = p+1; } else
value_len = 0; value_len++;
} else if (isspace(*p)) { break;
if (add_key_value(map, pa_xstrndup(key, key_len), pa_xstrdup(""), valid_keys) < 0)
goto fail; case VALUE_TICKS:
state = WHITESPACE; if (*p == '\'') {
} else { if (add_key_value(map, pa_xstrndup(key, key_len), pa_xstrndup(value, value_len), valid_keys) < 0)
state = VALUE_SIMPLE; goto fail;
value = p; state = WHITESPACE;
value_len = 1; } else
} value_len++;
break; break;
case VALUE_SIMPLE:
if (isspace(*p)) {
if (add_key_value(map, pa_xstrndup(key, key_len), pa_xstrndup(value, value_len), valid_keys) < 0)
goto fail;
state = WHITESPACE;
} else
value_len++;
break;
case VALUE_DOUBLE_QUOTES:
if (*p == '"') {
if (add_key_value(map, pa_xstrndup(key, key_len), pa_xstrndup(value, value_len), valid_keys) < 0)
goto fail;
state = WHITESPACE;
} else
value_len++;
break;
case VALUE_TICKS:
if (*p == '\'') {
if (add_key_value(map, pa_xstrndup(key, key_len), pa_xstrndup(value, value_len), valid_keys) < 0)
goto fail;
state = WHITESPACE;
} else
value_len++;
break;
}
} }
if (state == VALUE_START) {
if (add_key_value(map, pa_xstrndup(key, key_len), pa_xstrdup(""), valid_keys) < 0)
goto fail;
} else if (state == VALUE_SIMPLE) {
if (add_key_value(map, pa_xstrndup(key, key_len), pa_xstrdup(value), valid_keys) < 0)
goto fail;
} else if (state != WHITESPACE)
goto fail;
} }
if (state == VALUE_START) {
if (add_key_value(map, pa_xstrndup(key, key_len), pa_xstrdup(""), valid_keys) < 0)
goto fail;
} else if (state == VALUE_SIMPLE) {
if (add_key_value(map, pa_xstrndup(key, key_len), pa_xstrdup(value), valid_keys) < 0)
goto fail;
} else if (state != WHITESPACE)
goto fail;
return (pa_modargs*) map; return (pa_modargs*) map;
fail: fail:
if (map) pa_modargs_free((pa_modargs*) map);
pa_modargs_free((pa_modargs*) map);
return NULL; return NULL;
} }