string to perform matches against
starting index of the string to match, in bytes
options for the match
a function to call for each match
user data to pass to the function
Return: a newly allocated string containing the replacements
GException on failure.
2.14
Replaces occurrences of the pattern in regex with the output of @eval for that occurrence.
Setting @start_position differs from just passing over a shortened string and setting #G_REGEX_MATCH_NOTBOL in the case of a pattern that begins with any kind of lookbehind assertion, such as "\b".
The following example uses g_regex_replace_eval() to replace multiple strings at once: |[<!-- language="C" --> static gboolean eval_cb (const GMatchInfo *info, GString *res, gpointer data) { gchar *match; gchar *r;
match = g_match_info_fetch (info, 0); r = g_hash_table_lookup ((GHashTable *)data, match); g_string_append (res, r); g_free (match);
return FALSE; }
...
GRegex *reg; GHashTable *h; gchar *res;
h = g_hash_table_new (g_str_hash, g_str_equal);
g_hash_table_insert (h, "1", "ONE"); g_hash_table_insert (h, "2", "TWO"); g_hash_table_insert (h, "3", "THREE"); g_hash_table_insert (h, "4", "FOUR");
reg = g_regex_new ("1|2|3|4", 0, 0, NULL); res = g_regex_replace_eval (reg, text, -1, 0, 0, eval_cb, h, NULL); g_hash_table_destroy (h);
... ]|