GlobMatcherDemo.v3

// Copyright 2022 Ben L. Titzer. All rights reserved.
// See LICENSE for details of Apache 2.0 license.

def demo() {
	// A {GlobMatcher} is a utility to match strings against patterns
	// consisting of literal characters and the wildcards '?' and '*'.
	var m = GlobMatcher.new("pattern");
	if (m.matches("input")) System.puts("match1\n");	// false
	if (m.matches("pat")) System.puts("match2\n");		// false
	if (m.matches("pattern")) System.puts("match3\n");	// true

	// The wildcard '?' matches any single character.
	m = GlobMatcher.new("pat?ern");
	if (m.matches("patxern")) System.puts("match4\n");	// true
	if (m.matches("patkern")) System.puts("match5\n");	// true
	if (m.matches("patern")) System.puts("match6\n");	// false

	// The wildcard '*' matches zero or more characters.
	m = GlobMatcher.new("pa*n");
	if (m.matches("patxern")) System.puts("match7\n");	// true
	if (m.matches("pan")) System.puts("match8\n");		// true
	if (m.matches("patxer")) System.puts("match9\n");	// false

	// The char '.' is a literal; it only matches a period.
	m = GlobMatcher.new("pa.n");
	if (m.matches("paxn")) System.puts("match10\n");	// false
	if (m.matches("pa.n")) System.puts("match11\n");	// true

	// Other patterns are not supported yet, e.g. {x,y} or [a-z];
	// those characters are literals.
}

component GlobMatcherDemo {
	def run = demo;
}