Regular expression patterns must follow certain rules. If
#GtkSourceSearchSettings:search-text breaks a rule, the error can be retrieved
with this function. The error domain is #G_REGEX_ERROR.
Free the return value with g_error_free().
Return: the #GError, or %NULL if the pattern is valid.
Regular expression patterns must follow certain rules. If #GtkSourceSearchSettings:search-text breaks a rule, the error can be retrieved with this function. The error domain is #G_REGEX_ERROR.
Free the return value with g_error_free().
Return: the #GError, or %NULL if the pattern is valid.