Pattern match and Pattern builder for Java 8
###1. match and return
int num = 1;
String re = match(num)
.when(eq(4)).get(s -> "equal")
.when(more(4)).get("more")
.orElse("little")
.get();
System.out.println(re);###2. match and then
String e = "shit";
match(e)
.when(s -> s.startsWith(".")).then(print(e + "..........."))
.when(s -> s.startsWith("_")).then(println(e + "_____________"))
.orElse(println("nothing match"))
.doMatch();###3. map with Tuple
String logo = "ano";
String what = match(logo).
map(logo.length(), logo.charAt(0)).
when(more(10), eq('f')).get("").
when(less(8), any()).get(s -> "too short:" + s).
orElse("----no no no -----").
get();
System.out.println(what);###4. pair match
int number = 3;
match(number).
pair(4, "four").
pair(6, "six").
orElse("whatever").
get();
System.out.println(number); ###5. builder for reuse
Matcher1R<Integer, String> match = new MatchBuilder<Integer>()
.when(eq(4)).get(s -> "equal")
.when(more(4)).get("more")
.orElse("little");
String parseResult = match.parse(4);
System.out.printf(parseResult);Copyright 2015 Psyco (Peng Li)
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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limitations under the License.