index_of_char

Finds the leftmost occurrence of the given Unicode character in a UTF-8 encoded string.

Example: Find the leftmost occurrence of the given unichar:

public static int main (string[] args) {
	string haystack = ". -..- - . .-. -- .. -. .- - ."; 
	int index = 0;

	// Output: ``0 3 4 9 11 13 18 19 22 24 29 -1``
	do {
		index = haystack.index_of_char ('.', index);
		print ("%d ", index);
	} while (index++ >= 0);
	print ("\n");
	return 0;
}

valac --pkg glib-2.0 string.index_of_char.vala

Parameters:

c	a unicode character
start_index	the starting position for the search in bytes.

Returns:

the byte index of the first occurrence of the character, or -1 if the character does not occur.