1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
|
/**
* @file llkeywords.h
* @brief Keyword list for LSL
*
* $LicenseInfo:firstyear=2001&license=viewerlgpl$
* Second Life Viewer Source Code
* Copyright (C) 2010, Linden Research, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation;
* version 2.1 of the License only.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
* Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA
* $/LicenseInfo$
*/
#ifndef LL_LLKEYWORDS_H
#define LL_LLKEYWORDS_H
#include "lldir.h"
#include "llstring.h"
#include "v3color.h"
#include "v4color.h"
#include <map>
#include <list>
#include <deque>
#include "llpointer.h"
class LLTextSegment;
typedef LLPointer<LLTextSegment> LLTextSegmentPtr;
class LLKeywordToken
{
public:
/**
* @brief Types of tokens/delimters being parsed.
*
* @desc Tokens/delimiters that need to be identified/highlighted. All are terminated if an EOF is encountered.
* - TT_WORD are keywords in the normal sense, i.e. constants, events, etc.
* - TT_LINE are for entire lines (currently only flow control labels use this).
* - TT_ONE_SIDED_DELIMITER are for open-ended delimiters which are terminated by EOL.
* - TT_TWO_SIDED_DELIMITER are for delimiters that end with a different delimiter than they open with.
* - TT_DOUBLE_QUOTATION_MARKS are for delimiting areas using the same delimiter to open and close.
*/
typedef enum e_token_type
{
TT_UNKNOWN,
TT_WORD,
TT_LINE,
TT_TWO_SIDED_DELIMITER,
TT_ONE_SIDED_DELIMITER,
TT_DOUBLE_QUOTATION_MARKS,
// Following constants are more specific versions of the preceding ones
TT_CONSTANT, // WORD
TT_CONTROL, // WORD
TT_EVENT, // WORD
TT_FUNCTION, // WORD
TT_LABEL, // LINE
TT_SECTION, // WORD
TT_TYPE // WORD
} ETokenType;
LLKeywordToken( ETokenType type, const LLColor4& color, const LLWString& token, const LLWString& tool_tip, const LLWString& delimiter )
:
mType( type ),
mToken( token ),
mColor( color ),
mToolTip( tool_tip ),
mDelimiter( delimiter ) // right delimiter
{
}
S32 getLengthHead() const { return mToken.size(); }
S32 getLengthTail() const { return mDelimiter.size(); }
bool isHead(const llwchar* s) const;
bool isTail(const llwchar* s) const;
const LLWString& getToken() const { return mToken; }
const LLColor4& getColor() const { return mColor; }
ETokenType getType() const { return mType; }
const LLWString& getToolTip() const { return mToolTip; }
const LLWString& getDelimiter() const { return mDelimiter; }
#ifdef _DEBUG
void dump();
#endif
private:
ETokenType mType;
LLWString mToken;
LLColor4 mColor;
LLWString mToolTip;
LLWString mDelimiter;
};
class LLKeywords
{
public:
LLKeywords();
~LLKeywords();
void clearLoaded() { mLoaded = false; }
LLColor4 getColorGroup(const std::string& key_in);
bool isLoaded() const { return mLoaded; }
void findSegments(std::vector<LLTextSegmentPtr> *seg_list, const LLWString& text, const LLColor4 &defaultColor, class LLTextEditor& editor );
void initialize(LLSD SyntaxXML);
void processTokens();
// Add the token as described
void addToken(LLKeywordToken::ETokenType type,
const std::string& key,
const LLColor4& color,
const std::string& tool_tip = LLStringUtil::null,
const std::string& delimiter = LLStringUtil::null);
// This class is here as a performance optimization.
// The word token map used to be defined as std::map<LLWString, LLKeywordToken*>.
// This worked, but caused a performance bottleneck due to memory allocation and string copies
// because it's not possible to search such a map without creating an LLWString.
// Using this class as the map index instead allows us to search using segments of an existing
// text run without copying them first, which greatly reduces overhead in LLKeywords::findSegments().
class WStringMapIndex
{
public:
// copy constructor
WStringMapIndex(const WStringMapIndex& other);
// constructor from a string (copies the string's data into the new object)
WStringMapIndex(const LLWString& str);
// constructor from pointer and length
// NOTE: does NOT copy data, caller must ensure that the lifetime of the pointer exceeds that of the new object!
WStringMapIndex(const llwchar *start, size_t length);
~WStringMapIndex();
bool operator<(const WStringMapIndex &other) const;
private:
void copyData(const llwchar *start, size_t length);
const llwchar *mData;
size_t mLength;
bool mOwner;
LLColor4 mColor;
};
typedef std::map<WStringMapIndex, LLKeywordToken*> word_token_map_t;
typedef word_token_map_t::const_iterator keyword_iterator_t;
keyword_iterator_t begin() const { return mWordTokenMap.begin(); }
keyword_iterator_t end() const { return mWordTokenMap.end(); }
typedef std::map<WStringMapIndex, LLColor4> group_color_map_t;
typedef group_color_map_t::const_iterator color_iterator_t;
group_color_map_t mColorGroupMap;
#ifdef _DEBUG
void dump();
#endif
protected:
void processTokensGroup(const LLSD& Tokens, const std::string& Group);
void insertSegment(std::vector<LLTextSegmentPtr>& seg_list, LLTextSegmentPtr new_segment, S32 text_len, const LLColor4 &defaultColor, class LLTextEditor& editor);
void insertSegments(const LLWString& wtext, std::vector<LLTextSegmentPtr>& seg_list, LLKeywordToken* token, S32 text_len, S32 seg_start, S32 seg_end, const LLColor4 &defaultColor, LLTextEditor& editor);
bool mLoaded;
LLSD mSyntax;
word_token_map_t mWordTokenMap;
typedef std::deque<LLKeywordToken*> token_list_t;
token_list_t mLineTokenList;
token_list_t mDelimiterTokenList;
typedef std::map<std::string, std::string> element_attributes_t;
typedef element_attributes_t::const_iterator attribute_iterator_t;
element_attributes_t mAttributes;
std::string getAttribute(const std::string& key);
std::string getArguments(LLSD& args);
private:
};
#endif // LL_LLKEYWORDS_H
|
