MULTILINE

By default, GRegex treats the strings as consisting of a single line of characters (even if it actually contains newlines).

The "start of line" metacharacter ("^") matches only at the start of the string, while the "end of line" metacharacter ("$") matches only at the end of the string, or before a terminating newline (unless g_regex_dollar_endonly is set). When g_regex_multiline is set, the "start of line" and "end of line" constructs match immediately following or immediately before any newline in the string, respectively, as well as at the very start and end. This can be changed within a pattern by a "( ?m)" option setting.