1 // Scintilla source code edit control
2 //Author: instanton (email: soft_share<at>126<dot>com)
3 // The License.txt file describes the conditions under which this software may be distributed.
4
5 #include <stdlib.h>
6 #include <string.h>
7 #include <stdio.h>
8 #include <stdarg.h>
9 #include <assert.h>
10
11 #include "ILexer.h"
12 #include "Scintilla.h"
13 #include "SciLexer.h"
14
15 #include "WordList.h"
16 #include "LexAccessor.h"
17 #include "Accessor.h"
18 #include "StyleContext.h"
19 #include "CharacterSet.h"
20 #include "LexerModule.h"
21
22 #ifdef SCI_NAMESPACE
23 using namespace Scintilla;
24 #endif
25
ColouriseAsyDoc(Sci_PositionU startPos,Sci_Position length,int initStyle,WordList * keywordlists[],Accessor & styler)26 static void ColouriseAsyDoc(Sci_PositionU startPos, Sci_Position length, int initStyle,
27 WordList *keywordlists[], Accessor &styler) {
28
29 WordList &keywords = *keywordlists[0];
30 WordList &keywords2 = *keywordlists[1];
31
32 CharacterSet setWordStart(CharacterSet::setAlpha, "_", 0x80, true);
33 CharacterSet setWord(CharacterSet::setAlphaNum, "._", 0x80, true);
34
35 int visibleChars = 0;
36
37 StyleContext sc(startPos, length, initStyle, styler);
38
39 for (; sc.More(); sc.Forward()) {
40
41 if (sc.atLineStart) {
42 if (sc.state == SCE_ASY_STRING) {
43 sc.SetState(SCE_ASY_STRING);
44 }
45 visibleChars = 0;
46 }
47
48 if (sc.ch == '\\') {
49 if (sc.chNext == '\n' || sc.chNext == '\r') {
50 sc.Forward();
51 if (sc.ch == '\r' && sc.chNext == '\n') {
52 sc.Forward();
53 }
54 // continuationLine = true;
55 continue;
56 }
57 }
58
59 // Determine if the current state should terminate.
60 switch (sc.state) {
61 case SCE_ASY_OPERATOR:
62 sc.SetState(SCE_ASY_DEFAULT);
63 break;
64 case SCE_ASY_NUMBER:
65 if (!setWord.Contains(sc.ch)) {
66 sc.SetState(SCE_ASY_DEFAULT);
67 }
68 break;
69 case SCE_ASY_IDENTIFIER:
70 if (!setWord.Contains(sc.ch) || (sc.ch == '.')) {
71 char s[1000];
72 sc.GetCurrentLowered(s, sizeof(s));
73 if (keywords.InList(s)) {
74 sc.ChangeState(SCE_ASY_WORD);
75 } else if (keywords2.InList(s)) {
76 sc.ChangeState(SCE_ASY_WORD2);
77 }
78 sc.SetState(SCE_ASY_DEFAULT);
79 }
80 break;
81 case SCE_ASY_COMMENT:
82 if (sc.Match('*', '/')) {
83 sc.Forward();
84 sc.ForwardSetState(SCE_ASY_DEFAULT);
85 }
86 break;
87 case SCE_ASY_COMMENTLINE:
88 if (sc.atLineStart) {
89 sc.SetState(SCE_ASY_DEFAULT);
90 }
91 break;
92 case SCE_ASY_STRING:
93 if (sc.atLineEnd) {
94 sc.ChangeState(SCE_ASY_STRINGEOL);
95 } else if (sc.ch == '\\') {
96 if (sc.chNext == '\"' || sc.chNext == '\'' || sc.chNext == '\\') {
97 sc.Forward();
98 }
99 } else if (sc.ch == '\"') {
100 sc.ForwardSetState(SCE_ASY_DEFAULT);
101 }
102 break;
103 case SCE_ASY_CHARACTER:
104 if (sc.atLineEnd) {
105 sc.ChangeState(SCE_ASY_STRINGEOL);
106 } else if (sc.ch == '\\') {
107 if (sc.chNext == '\"' || sc.chNext == '\'' || sc.chNext == '\\') {
108 sc.Forward();
109 }
110 } else if (sc.ch == '\'') {
111 sc.ForwardSetState(SCE_ASY_DEFAULT);
112 }
113 break;
114 }
115
116 // Determine if a new state should be entered.
117 if (sc.state == SCE_ASY_DEFAULT) {
118 if (setWordStart.Contains(sc.ch) || (sc.ch == '@')) {
119 sc.SetState(SCE_ASY_IDENTIFIER);
120 } else if (sc.Match('/', '*')) {
121 sc.SetState(SCE_ASY_COMMENT);
122 sc.Forward(); //
123 } else if (sc.Match('/', '/')) {
124 sc.SetState(SCE_ASY_COMMENTLINE);
125 } else if (sc.ch == '\"') {
126 sc.SetState(SCE_ASY_STRING);
127 } else if (sc.ch == '\'') {
128 sc.SetState(SCE_ASY_CHARACTER);
129 } else if (sc.ch == '#' && visibleChars == 0) {
130 do {
131 sc.Forward();
132 } while ((sc.ch == ' ' || sc.ch == '\t') && sc.More());
133 if (sc.atLineEnd) {
134 sc.SetState(SCE_ASY_DEFAULT);
135 }
136 } else if (isoperator(static_cast<char>(sc.ch))) {
137 sc.SetState(SCE_ASY_OPERATOR);
138 }
139 }
140
141 }
142 sc.Complete();
143 }
144
IsAsyCommentStyle(int style)145 static bool IsAsyCommentStyle(int style) {
146 return style == SCE_ASY_COMMENT;
147 }
148
149
isASYidentifier(int ch)150 static inline bool isASYidentifier(int ch) {
151 return
152 ((ch >= 'a') && (ch <= 'z')) || ((ch >= 'A') && (ch <= 'Z')) ;
153 }
154
ParseASYWord(Sci_PositionU pos,Accessor & styler,char * word)155 static int ParseASYWord(Sci_PositionU pos, Accessor &styler, char *word)
156 {
157 int length=0;
158 char ch=styler.SafeGetCharAt(pos);
159 *word=0;
160
161 while(isASYidentifier(ch) && length<100){
162 word[length]=ch;
163 length++;
164 ch=styler.SafeGetCharAt(pos+length);
165 }
166 word[length]=0;
167 return length;
168 }
169
IsASYDrawingLine(Sci_Position line,Accessor & styler)170 static bool IsASYDrawingLine(Sci_Position line, Accessor &styler) {
171 Sci_Position pos = styler.LineStart(line);
172 Sci_Position eol_pos = styler.LineStart(line + 1) - 1;
173
174 Sci_Position startpos = pos;
175 char buffer[100]="";
176
177 while (startpos<eol_pos){
178 char ch = styler[startpos];
179 ParseASYWord(startpos,styler,buffer);
180 bool drawcommands = strncmp(buffer,"draw",4)==0||
181 strncmp(buffer,"pair",4)==0||strncmp(buffer,"label",5)==0;
182 if (!drawcommands && ch!=' ') return false;
183 else if (drawcommands) return true;
184 startpos++;
185 }
186 return false;
187 }
188
FoldAsyDoc(Sci_PositionU startPos,Sci_Position length,int initStyle,WordList * [],Accessor & styler)189 static void FoldAsyDoc(Sci_PositionU startPos, Sci_Position length, int initStyle,
190 WordList *[], Accessor &styler) {
191 bool foldComment = styler.GetPropertyInt("fold.comment") != 0;
192 bool foldCompact = styler.GetPropertyInt("fold.compact", 1) != 0;
193 bool foldAtElse = styler.GetPropertyInt("fold.at.else", 0) != 0;
194 Sci_PositionU endPos = startPos + length;
195 int visibleChars = 0;
196 Sci_Position lineCurrent = styler.GetLine(startPos);
197 int levelCurrent = SC_FOLDLEVELBASE;
198 if (lineCurrent > 0)
199 levelCurrent = styler.LevelAt(lineCurrent-1) >> 16;
200 int levelMinCurrent = levelCurrent;
201 int levelNext = levelCurrent;
202 char chNext = styler[startPos];
203 int styleNext = styler.StyleAt(startPos);
204 int style = initStyle;
205 for (Sci_PositionU i = startPos; i < endPos; i++) {
206 char ch = chNext;
207 chNext = styler.SafeGetCharAt(i + 1);
208 int stylePrev = style;
209 style = styleNext;
210 styleNext = styler.StyleAt(i + 1);
211 bool atEOL = (ch == '\r' && chNext != '\n') || (ch == '\n');
212 if (foldComment && IsAsyCommentStyle(style)) {
213 if (!IsAsyCommentStyle(stylePrev) && (stylePrev != SCE_ASY_COMMENTLINEDOC)) {
214 levelNext++;
215 } else if (!IsAsyCommentStyle(styleNext) && (styleNext != SCE_ASY_COMMENTLINEDOC) && !atEOL) {
216 levelNext--;
217 }
218 }
219 if (style == SCE_ASY_OPERATOR) {
220 if (ch == '{') {
221 if (levelMinCurrent > levelNext) {
222 levelMinCurrent = levelNext;
223 }
224 levelNext++;
225 } else if (ch == '}') {
226 levelNext--;
227 }
228 }
229
230 if (atEOL && IsASYDrawingLine(lineCurrent, styler)){
231 if (lineCurrent==0 && IsASYDrawingLine(lineCurrent + 1, styler))
232 levelNext++;
233 else if (lineCurrent!=0 && !IsASYDrawingLine(lineCurrent - 1, styler)
234 && IsASYDrawingLine(lineCurrent + 1, styler)
235 )
236 levelNext++;
237 else if (lineCurrent!=0 && IsASYDrawingLine(lineCurrent - 1, styler) &&
238 !IsASYDrawingLine(lineCurrent+1, styler))
239 levelNext--;
240 }
241
242 if (atEOL) {
243 int levelUse = levelCurrent;
244 if (foldAtElse) {
245 levelUse = levelMinCurrent;
246 }
247 int lev = levelUse | levelNext << 16;
248 if (visibleChars == 0 && foldCompact)
249 lev |= SC_FOLDLEVELWHITEFLAG;
250 if (levelUse < levelNext)
251 lev |= SC_FOLDLEVELHEADERFLAG;
252 if (lev != styler.LevelAt(lineCurrent)) {
253 styler.SetLevel(lineCurrent, lev);
254 }
255 lineCurrent++;
256 levelCurrent = levelNext;
257 levelMinCurrent = levelCurrent;
258 visibleChars = 0;
259 }
260 if (!IsASpace(ch))
261 visibleChars++;
262 }
263 }
264
265 static const char * const asyWordLists[] = {
266 "Primary keywords and identifiers",
267 "Secondary keywords and identifiers",
268 0,
269 };
270
271 LexerModule lmASY(SCLEX_ASYMPTOTE, ColouriseAsyDoc, "asy", FoldAsyDoc, asyWordLists);
272