Function readCommand

backend/plugin/parser/tsql/batch/parse.go:22–37

readCommand reads to the next control character to find a command in the string. Command regexes constrain matches to the beginning of the string, and all commands consume an entire line.

(r []rune, i, end int)

// to the beginning of the string, and all commands consume
// an entire line.
func readCommand(r []rune, i, end int) (Command, int) {
	for ; i < end; i++ {
		next := grab(r, i, end)
		if next == 0 || (unicode.IsControl(next) && next != '\t') {
			break
		}
	}

	for _, builder := range commandBuilders {
		cmd := builder(string(r[:i]))
		if cmd != nil {
			return cmd, i
		}
	}
	return nil, i
}

// readMultilineComment finds the end of a multiline comment (ie, '*/').
func readMultilineComment(r []rune, i, end int) (int, bool) {