2 * Copyright 2007 ZXing authors
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
17 package com.google.zxing.client.result;
19 import java.util.Vector;
23 * <a href="http://www.nttdocomo.co.jp/english/service/imode/make/content/barcode/about/s2.html">
24 * DoCoMo's documentation</a> about the result types represented by subclasses of this class.</p>
26 * <p>Thanks to Jeff Griffin for proposing rewrite of these classes that relies less
27 * on exception-based mechanisms during parsing.</p>
29 * @author srowen@google.com (Sean Owen)
31 abstract class AbstractDoCoMoResultParser extends ResultParser {
33 // This could as well be implemented with java.util.regex. It was already implemented partially
34 // to run in a J2ME enviroment, where this unavailable.
36 static String[] matchPrefixedField(String prefix, String rawText) {
37 return matchPrefixedField(prefix, rawText, ';');
40 static String[] matchPrefixedField(String prefix, String rawText, char endChar) {
41 Vector matches = null;
43 int max = rawText.length();
45 i = rawText.indexOf(prefix, i);
49 i += prefix.length(); // Skip past this prefix we found to start
50 int start = i; // Found the start of a match here
53 i = rawText.indexOf((int) endChar, i);
55 // No terminating end character? uh, done. Set i such that loop terminates and break
58 } else if (rawText.charAt(i - 1) == '\\') {
59 // semicolon was escaped so continue
63 if (matches == null) {
64 matches = new Vector(3); // lazy init
66 matches.addElement(unescapeBackslash(rawText.substring(start, i)));
72 if (matches == null || matches.isEmpty()) {
75 int size = matches.size();
76 String[] result = new String[size];
77 for (int j = 0; j < size; j++) {
78 result[j] = (String) matches.elementAt(j);
83 static String matchSinglePrefixedField(String prefix, String rawText) {
84 return matchSinglePrefixedField(prefix, rawText, ';');
87 static String matchSinglePrefixedField(String prefix, String rawText, char endChar) {
88 String[] matches = matchPrefixedField(prefix, rawText, endChar);
89 return matches == null ? null : matches[0];