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authorAnton Tananaev <anton.tananaev@gmail.com>2015-10-07 11:25:10 +1300
committerAnton Tananaev <anton.tananaev@gmail.com>2015-10-07 11:25:10 +1300
commitea7d1c6268359221191d78bcbf0d65d2dcb06088 (patch)
treeadad93c59f02f08ebb38977325f3baae01dc3da8 /src/org/traccar/helper
parentf8247b46234d7844d3692d5db2e35effab3ac603 (diff)
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Implement pattern builder util class
Diffstat (limited to 'src/org/traccar/helper')
-rw-r--r--src/org/traccar/helper/PatternBuilder.java67
1 files changed, 67 insertions, 0 deletions
diff --git a/src/org/traccar/helper/PatternBuilder.java b/src/org/traccar/helper/PatternBuilder.java
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+++ b/src/org/traccar/helper/PatternBuilder.java
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+/*
+ * Copyright 2015 Anton Tananaev (anton.tananaev@gmail.com)
+ *
+ * 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.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.traccar.helper;
+
+import java.util.regex.Pattern;
+
+public class PatternBuilder {
+
+ private final StringBuilder pattern = new StringBuilder();
+
+ private final boolean collapse = true;
+
+ public PatternBuilder xpr(String s) {
+ pattern.append(s);
+ return this;
+ }
+
+ public PatternBuilder txt(String s) {
+ pattern.append(s.replaceAll("([\\\\\\.\\[\\{\\(\\*\\+\\?\\^\\$\\|])", "\\\\$1"));
+ return this;
+ }
+
+ public PatternBuilder num(String s) {
+ if (collapse) {
+ s = s.replace("dddd", "d{4}").replace("ddd", "d{3}").replace("dd", "d{2}");
+ s = s.replace("xxxx", "x{4}").replace("xxx", "x{3}").replace("xx", "x{2}");
+ }
+ pattern.append(s.replace("d", "\\d").replace("x", "\\p{XDigit}").replaceAll("([\\.\\|])", "\\\\$1"));
+ return this;
+ }
+
+ public PatternBuilder any() {
+ pattern.append(".*");
+ return this;
+ }
+
+ public PatternBuilder not(String s) {
+ return xpr("[^").txt(s).xpr("]+");
+ }
+
+ public PatternBuilder nxt(String s) {
+ return not(s).txt(s);
+ }
+
+ public Pattern compile() {
+ return Pattern.compile(pattern.toString(), Pattern.DOTALL);
+ }
+
+ @Override
+ public String toString() {
+ return pattern.toString();
+ }
+
+}