Method parseDefaultOrSubstr

parse/parse.go:151–161

parse either a default or substring substitution function.

(name string)

// parse either a default or substring substitution function.
func (t *Tree) parseDefaultOrSubstr(name string) (Node, error) {
	t.scanner.read()
	r := t.scanner.peek()
	t.scanner.unread()
	switch r {
	case '=', '-', '?', '+':
		return t.parseDefaultFunc(name)
	default:
		return t.parseSubstrFunc(name)
	}
}

// parses the ${param:offset} string function
// parses the ${param:offset:length} string function