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Member "cb2bib-2.0.1/src/c2bHighlighter.cpp" (12 Feb 2021, 5020 Bytes) of package /linux/privat/cb2bib-2.0.1.tar.gz:
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1 /***************************************************************************
2 * Copyright (C) 2004-2021 by Pere Constans
3 * constans@molspaces.com
4 * cb2Bib version 2.0.1. Licensed under the GNU GPL version 3.
5 * See the LICENSE file that comes with this distribution.
6 ***************************************************************************/
7 #include "c2bHighlighter.h"
8 #include "c2bSettings.h"
9
10 #include <QPalette>
11 #include <QTextDocument>
12
13
14 c2bHighlighter::c2bHighlighter(QTextDocument* doc) : QSyntaxHighlighter(doc)
15 {
16 QPalette p;
17 text_color = p.text().color();
18 c2bSettings* settings(c2bSettingsP);
19 c = &settings->colors;
20 connect(settings, SIGNAL(newSettings()), this, SLOT(rehighlight()));
21
22 rx0 = QRegExp("\\d+");
23 rx0.setMinimal(true);
24 rx1 = QRegExp("[^\\w\\d]+");
25 rx1.setMinimal(true);
26 rx2 = QRegExp("<(?:NewLine|Tab)\\d+>");
27 rx2.setMinimal(true);
28 rx3 = QRegExp("\\b(?:19|20)\\d\\d\\b");
29 rx3.setMinimal(true);
30 rx4 = QRegExp("\\b(?:abstract|authors{0,1}|introduction|issue|keywords|key words|title|volume|vol)\\b",
31 Qt::CaseInsensitive);
32 rx4.setMinimal(true);
33 rx5 = QRegExp("<<(?:abstract|address|annote|author|booktitle|chapter|"
34 "doi|edition|editor|eprint|file|institution|isbn|issn|journal|"
35 "keywords|month|note|number|organization|pages|publisher|"
36 "school|series|title|url|volume|year)>>");
37 rx5.setMinimal(true);
38 rx6 = QRegExp("<AnyPattern>");
39 rx6.setMinimal(true);
40 rx_extracted_starts = QRegExp("\\[\\[");
41 rx_extracted_ends = QRegExp("\\]\\]");
42 rx_metadata_starts = QRegExp("\\[(Bibliographic|Raw) Metadata");
43 rx_metadata_ends = QRegExp("/(Bibliographic|Raw) Metadata\\]");
44 }
45
46 c2bHighlighter::~c2bHighlighter() {}
47
48
49 void c2bHighlighter::highlightBlock(const QString& text)
50 {
51 const int len(text.length());
52 setFormat(0, len - 1, text_color);
53
54 int pos(0);
55 while (pos >= 0)
56 {
57 pos = rx0.indexIn(text, pos);
58 if (pos > -1)
59 {
60 setFormat(pos, rx0.matchedLength(), c->cb2bib_digit_color);
61 pos += rx0.matchedLength();
62 }
63 }
64 pos = 0;
65 while (pos >= 0)
66 {
67 pos = rx1.indexIn(text, pos);
68 if (pos > -1)
69 {
70 setFormat(pos, rx1.matchedLength(), c->cb2bib_unrelevant_color);
71 pos += rx1.matchedLength();
72 }
73 }
74 pos = 0;
75 while (pos >= 0)
76 {
77 pos = rx2.indexIn(text, pos);
78 if (pos > -1)
79 {
80 setFormat(pos, rx2.matchedLength(), c->cb2bib_unrelevant_color);
81 pos += rx2.matchedLength();
82 }
83 }
84 pos = 0;
85 while (pos >= 0)
86 {
87 pos = rx3.indexIn(text, pos);
88 if (pos > -1)
89 {
90 setFormat(pos, rx3.matchedLength(), c->cb2bib_relevant_color);
91 pos += rx3.matchedLength();
92 }
93 }
94 pos = 0;
95 while (pos >= 0)
96 {
97 pos = rx4.indexIn(text, pos);
98 if (pos > -1)
99 {
100 setFormat(pos, rx4.matchedLength(), c->cb2bib_highly_relevant_color);
101 pos += rx4.matchedLength();
102 }
103 }
104 pos = 0;
105 while (pos >= 0)
106 {
107 pos = rx5.indexIn(text, pos);
108 if (pos > -1)
109 {
110 setFormat(pos, rx5.matchedLength(), c->cb2bib_tag_color);
111 pos += rx5.matchedLength();
112 }
113 }
114 pos = 0;
115 while (pos >= 0)
116 {
117 pos = rx6.indexIn(text, pos);
118 if (pos > -1)
119 {
120 setFormat(pos, rx6.matchedLength(), c->cb2bib_unrelevant_color);
121 pos += rx6.matchedLength();
122 }
123 }
124
125 setCurrentBlockState(0);
126 int startIndexMD(0);
127 if (previousBlockState() != 1)
128 startIndexMD = rx_metadata_starts.indexIn(text);
129 while (startIndexMD >= 0)
130 {
131 const int endIndex(rx_metadata_ends.indexIn(text, startIndexMD));
132 int extractedLength;
133 if (endIndex == -1)
134 {
135 setCurrentBlockState(1);
136 extractedLength = text.length() - startIndexMD;
137 }
138 else
139 extractedLength = endIndex - startIndexMD + rx_metadata_ends.matchedLength();
140 setFormat(startIndexMD, extractedLength, c->cb2bib_metadata_color);
141 startIndexMD = rx_metadata_starts.indexIn(text, startIndexMD + extractedLength);
142 }
143
144 int startIndexEx(0);
145 if (previousBlockState() != 2)
146 startIndexEx = rx_extracted_starts.indexIn(text);
147 while (startIndexEx >= 0)
148 {
149 const int endIndex(rx_extracted_ends.indexIn(text, startIndexEx));
150 int extractedLength;
151 if (endIndex == -1)
152 {
153 setCurrentBlockState(2);
154 extractedLength = text.length() - startIndexEx;
155 }
156 else
157 extractedLength = endIndex - startIndexEx + rx_extracted_ends.matchedLength();
158 setFormat(startIndexEx, extractedLength, c->cb2bib_unrelevant_color);
159 startIndexEx = rx_extracted_starts.indexIn(text, startIndexEx + extractedLength);
160 }
161 }