Classes in this File | Line Coverage | Branch Coverage | Complexity | ||||
ParagraphBlockParser |
|
| 2.6;2,6 |
1 | package org.apache.maven.doxia.module.confluence.parser; | |
2 | ||
3 | /* | |
4 | * Licensed to the Apache Software Foundation (ASF) under one | |
5 | * or more contributor license agreements. See the NOTICE file | |
6 | * distributed with this work for additional information | |
7 | * regarding copyright ownership. The ASF licenses this file | |
8 | * to you under the Apache License, Version 2.0 (the | |
9 | * "License"); you may not use this file except in compliance | |
10 | * with the License. You may obtain a copy of the License at | |
11 | * | |
12 | * http://www.apache.org/licenses/LICENSE-2.0 | |
13 | * | |
14 | * Unless required by applicable law or agreed to in writing, | |
15 | * software distributed under the License is distributed on an | |
16 | * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY | |
17 | * KIND, either express or implied. See the License for the | |
18 | * specific language governing permissions and limitations | |
19 | * under the License. | |
20 | */ | |
21 | ||
22 | import org.apache.maven.doxia.parser.ParseException; | |
23 | import org.apache.maven.doxia.util.ByLineSource; | |
24 | ||
25 | /** | |
26 | * <p>ParagraphBlockParser class.</p> | |
27 | * | |
28 | * @version $Id: ParagraphBlockParser.java 775115 2009-05-15 12:54:18Z ltheussl $ | |
29 | */ | |
30 | public class ParagraphBlockParser | |
31 | implements BlockParser | |
32 | { | |
33 | private BlockParser[] parsers; | |
34 | ||
35 | /** | |
36 | * <p>Constructor for ParagraphBlockParser.</p> | |
37 | * | |
38 | * @param parsers the parsers. | |
39 | */ | |
40 | public ParagraphBlockParser( BlockParser[] parsers ) | |
41 | { | |
42 | 240 | super(); |
43 | 240 | this.parsers = parsers; |
44 | 240 | } |
45 | ||
46 | /** {@inheritDoc} */ | |
47 | public boolean accept( String line, ByLineSource source ) | |
48 | { | |
49 | 162 | return true; |
50 | } | |
51 | ||
52 | /** | |
53 | * Visit the Block. | |
54 | * | |
55 | * @param line the line to visit. | |
56 | * @param source the source. | |
57 | * @param generateParagraphTags whether to generate a paragraph. | |
58 | * @return the visited Block. | |
59 | * | |
60 | * @throws org.apache.maven.doxia.parser.ParseException if any | |
61 | */ | |
62 | public Block visit( String line, ByLineSource source, boolean generateParagraphTags ) | |
63 | throws ParseException | |
64 | { | |
65 | 124 | if ( generateParagraphTags ) |
66 | { | |
67 | 0 | return this.visit( line, source ); |
68 | } | |
69 | else | |
70 | { | |
71 | 124 | ChildBlocksBuilder builder = new ChildBlocksBuilder( line ); |
72 | 124 | return new ParagraphBlock( builder.getBlocks(), generateParagraphTags ); |
73 | } | |
74 | } | |
75 | ||
76 | /** {@inheritDoc} */ | |
77 | public Block visit( String line, ByLineSource source ) | |
78 | throws ParseException | |
79 | { | |
80 | ||
81 | 162 | ChildBlocksBuilder builder = new ChildBlocksBuilder( appendUntilEmptyLine( line, source ) ); |
82 | 162 | return new ParagraphBlock( builder.getBlocks() ); |
83 | } | |
84 | ||
85 | /** | |
86 | * Slurp lines from the source starting with the given line appending them together into a StringBuffer until an | |
87 | * empty line is reached, and while the source contains more lines. The result can be passed to the | |
88 | * {@link #getBlocks(String)} method. | |
89 | * | |
90 | * @param line the first line | |
91 | * @param source the source to read new lines from | |
92 | * @return a StringBuffer appended with lines | |
93 | * @throws ParseException | |
94 | */ | |
95 | private String appendUntilEmptyLine( String line, ByLineSource source ) | |
96 | throws ParseException | |
97 | { | |
98 | 162 | StringBuffer text = new StringBuffer(); |
99 | ||
100 | do | |
101 | { | |
102 | ||
103 | 320 | if ( line.trim().length() == 0 ) |
104 | { | |
105 | 128 | break; |
106 | } | |
107 | ||
108 | 192 | boolean accepted = false; |
109 | 1126 | for ( int i = 0; i < parsers.length; i++ ) |
110 | { | |
111 | 942 | BlockParser parser = parsers[i]; |
112 | 942 | if ( parser.accept( line, source ) ) |
113 | { | |
114 | 8 | accepted = true; |
115 | 8 | break; |
116 | } | |
117 | } | |
118 | 192 | if ( accepted ) |
119 | { | |
120 | // Slightly fragile - if any of the parsers need to do this in order to decide whether to accept a line, | |
121 | // then it will barf because of the contract of ByLineSource | |
122 | 8 | source.ungetLine(); |
123 | 8 | break; |
124 | } | |
125 | ||
126 | 184 | if ( text.length() == 0 ) |
127 | { | |
128 | 162 | text.append( line.trim() ); |
129 | } | |
130 | else | |
131 | { | |
132 | 22 | text.append( " " + line.trim() ); |
133 | } | |
134 | ||
135 | } | |
136 | 184 | while ( ( line = source.getNextLine() ) != null ); |
137 | ||
138 | 162 | return text.toString(); |
139 | } | |
140 | ||
141 | } |