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1 : /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
2 : /*
3 : * This file is part of the LibreOffice project.
4 : *
5 : * This Source Code Form is subject to the terms of the Mozilla Public
6 : * License, v. 2.0. If a copy of the MPL was not distributed with this
7 : * file, You can obtain one at http://mozilla.org/MPL/2.0/.
8 : *
9 : * This file incorporates work covered by the following license notice:
10 : *
11 : * Licensed to the Apache Software Foundation (ASF) under one or more
12 : * contributor license agreements. See the NOTICE file distributed
13 : * with this work for additional information regarding copyright
14 : * ownership. The ASF licenses this file to you under the Apache
15 : * License, Version 2.0 (the "License"); you may not use this file
16 : * except in compliance with the License. You may obtain a copy of
17 : * the License at http://www.apache.org/licenses/LICENSE-2.0 .
18 : */
19 : #ifndef _COMPHELPER_SYNTAXHIGHLIGHT_HXX
20 : #define _COMPHELPER_SYNTAXHIGHLIGHT_HXX
21 :
22 : #include <vector>
23 : #include <rtl/ustring.hxx>
24 :
25 : #include <comphelper/comphelperdllapi.h>
26 :
27 :
28 : #if defined CDECL
29 : #undef CDECL
30 : #endif
31 :
32 : // for the bsearch
33 : #ifdef WNT
34 : #define CDECL _cdecl
35 : #endif
36 : #if defined(UNX)
37 : #define CDECL
38 : #endif
39 : #ifdef UNX
40 : #include <sys/resource.h>
41 : #endif
42 :
43 :
44 : // Token-Typen TT_...
45 : enum TokenTypes
46 : {
47 : TT_UNKNOWN,
48 : TT_IDENTIFIER,
49 : TT_WHITESPACE,
50 : TT_NUMBER,
51 : TT_STRING,
52 : TT_EOL,
53 : TT_COMMENT,
54 : TT_ERROR,
55 : TT_OPERATOR,
56 : TT_KEYWORDS,
57 : TT_PARAMETER
58 : };
59 :
60 : struct HighlightPortion { sal_uInt16 nBegin; sal_uInt16 nEnd; TokenTypes tokenType; };
61 :
62 :
63 : typedef std::vector<HighlightPortion> HighlightPortions;
64 :
65 : /////////////////////////////////////////////////////////////////////////
66 : // Auxiliary class to support JavaScript modules, next to find functions which
67 : // will later will be used for syntax highlighting
68 :
69 : // Flags for character properties
70 : #define CHAR_START_IDENTIFIER 0x0001
71 : #define CHAR_IN_IDENTIFIER 0x0002
72 : #define CHAR_START_NUMBER 0x0004
73 : #define CHAR_IN_NUMBER 0x0008
74 : #define CHAR_IN_HEX_NUMBER 0x0010
75 : #define CHAR_IN_OCT_NUMBER 0x0020
76 : #define CHAR_START_STRING 0x0040
77 : #define CHAR_OPERATOR 0x0080
78 : #define CHAR_SPACE 0x0100
79 : #define CHAR_EOL 0x0200
80 :
81 : #define CHAR_EOF 0x00
82 :
83 :
84 : // Language mode of the Highlighter (possibly to be refined later with keyword
85 : // lists, C comment flags)
86 : enum HighlighterLanguage
87 : {
88 : HIGHLIGHT_BASIC,
89 : HIGHLIGHT_SQL
90 : };
91 :
92 : class SimpleTokenizer_Impl
93 : {
94 : HighlighterLanguage aLanguage;
95 : // Character information tables
96 : sal_uInt16 aCharTypeTab[256];
97 :
98 : const sal_Unicode* mpStringBegin;
99 : const sal_Unicode* mpActualPos;
100 :
101 : // Lines and columns
102 : sal_uInt32 nLine;
103 : sal_uInt32 nCol;
104 :
105 0 : sal_Unicode peekChar( void ) { return *mpActualPos; }
106 0 : sal_Unicode getChar( void ) { nCol++; return *mpActualPos++; }
107 :
108 : // Auxiliary function: testing of the character flags
109 : sal_Bool testCharFlags( sal_Unicode c, sal_uInt16 nTestFlags );
110 :
111 : // Get new token, EmptyString == nothing more over there
112 : sal_Bool getNextToken( /*out*/TokenTypes& reType,
113 : /*out*/const sal_Unicode*& rpStartPos, /*out*/const sal_Unicode*& rpEndPos );
114 :
115 : const char** ppListKeyWords;
116 : sal_uInt16 nKeyWordCount;
117 :
118 : public:
119 : SimpleTokenizer_Impl( HighlighterLanguage aLang = HIGHLIGHT_BASIC );
120 : ~SimpleTokenizer_Impl( void );
121 :
122 : sal_uInt16 parseLine( sal_uInt32 nLine, const OUString* aSource );
123 : void getHighlightPortions( sal_uInt32 nParseLine, const OUString& rLine,
124 : /*out*/HighlightPortions& portions );
125 : void setKeyWords( const char** ppKeyWords, sal_uInt16 nCount );
126 : };
127 :
128 :
129 : //*** SyntaxHighlighter Class ***
130 : // Concept: the Highlighter will be notified of all changes in the source
131 : // (notifyChange) and returns the caller the range of lines, which based on the
132 : // changes, need to be highlighted again. For this the Highlighter marks all
133 : // lines internally whether or not C comments begin or end.
134 : class COMPHELPER_DLLPUBLIC SyntaxHighlighter
135 : {
136 : HighlighterLanguage eLanguage;
137 : SimpleTokenizer_Impl* m_pSimpleTokenizer;
138 : char* m_pKeyWords;
139 : sal_uInt16 m_nKeyWordCount;
140 :
141 : // void initializeKeyWords( HighlighterLanguage eLanguage );
142 :
143 : public:
144 : SyntaxHighlighter( void );
145 : ~SyntaxHighlighter( void );
146 :
147 : // (Re-)initialize Highlighter. The line-table will be completely erased,
148 : // meaning that on completion an empty Source is assumed.
149 : // notifyChange() can only be given line 0
150 : void initialize( HighlighterLanguage eLanguage_ );
151 :
152 : void notifyChange( sal_uInt32 nLine, sal_Int32 nLineCountDifference,
153 : const OUString* pChangedLines, sal_uInt32 nArrayLength);
154 :
155 : void getHighlightPortions( sal_uInt32 nLine, const OUString& rLine,
156 : HighlightPortions& pPortions );
157 :
158 0 : HighlighterLanguage GetLanguage() { return eLanguage;}
159 : };
160 : #endif
161 :
162 : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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