Method

GLibMatchInfoexpand_references

Declaration

gchar*
g_match_info_expand_references (
  const GMatchInfo* match_info,
  const gchar* string_to_expand,
  GError** error
)

Description

Returns a new string containing the text in string_to_expand with references and escape sequences expanded. References refer to the last match done with string against regex and have the same syntax used by g_regex_replace().

The string_to_expand must be UTF-8 encoded even if G_REGEX_RAW was passed to g_regex_new().

The backreferences are extracted from the string passed to the match function, so you cannot call this function after freeing the string.

match_info may be NULL in which case string_to_expand must not contain references. For instance “foo\n” does not refer to an actual pattern and ‘\n’ merely will be replaced with \n character, while to expand “\0” (whole match) one needs the result of a match. Use g_regex_check_replacement() to find out whether string_to_expand contains references.

Available since:

2.14

Parameters

`string_to_expand`	`const gchar*`
	The string to expand.
	The data is owned by the caller of the function.
	The value is a NUL terminated UTF-8 string.
`error`	`GError **`
	The return location for a `GError*`, or `NULL`.

Return value

Returns:	`gchar*`
	The expanded string, or `NULL` if an error occurred.
	The caller of the method takes ownership of the data, and is responsible for freeing it.
	The return value can be `NULL`.
	The value is a NUL terminated UTF-8 string.