diff options
Diffstat (limited to 'scintilla/src/LexASY.cxx')
| -rw-r--r-- | scintilla/src/LexASY.cxx | 270 |
1 files changed, 270 insertions, 0 deletions
diff --git a/scintilla/src/LexASY.cxx b/scintilla/src/LexASY.cxx new file mode 100644 index 0000000..8a1785a --- /dev/null +++ b/scintilla/src/LexASY.cxx @@ -0,0 +1,270 @@ +// Scintilla source code edit control
+//Author: instanton (email: soft_share<at>126<dot>com)
+// The License.txt file describes the conditions under which this software may be distributed.
+
+#include <stdlib.h>
+#include <string.h>
+#include <ctype.h>
+#include <stdio.h>
+#include <stdarg.h>
+
+#include "Platform.h"
+
+#include "PropSet.h"
+#include "Accessor.h"
+#include "StyleContext.h"
+#include "KeyWords.h"
+#include "Scintilla.h"
+#include "SciLexer.h"
+#include "CharacterSet.h"
+
+#ifdef SCI_NAMESPACE
+using namespace Scintilla;
+#endif
+
+static void ColouriseAsyDoc(unsigned int startPos, int length, int initStyle,
+ WordList *keywordlists[], Accessor &styler) {
+
+ WordList &keywords = *keywordlists[0];
+ WordList &keywords2 = *keywordlists[1];
+
+ CharacterSet setWordStart(CharacterSet::setAlpha, "_", 0x80, true);
+ CharacterSet setWord(CharacterSet::setAlphaNum, "._", 0x80, true);
+
+ int visibleChars = 0;
+
+ StyleContext sc(startPos, length, initStyle, styler);
+
+ for (; sc.More(); sc.Forward()) {
+
+ if (sc.atLineStart) {
+ if (sc.state == SCE_ASY_STRING) {
+ sc.SetState(SCE_ASY_STRING);
+ }
+ visibleChars = 0;
+ }
+
+ if (sc.ch == '\\') {
+ if (sc.chNext == '\n' || sc.chNext == '\r') {
+ sc.Forward();
+ if (sc.ch == '\r' && sc.chNext == '\n') {
+ sc.Forward();
+ }
+// continuationLine = true;
+ continue;
+ }
+ }
+
+ // Determine if the current state should terminate.
+ switch (sc.state) {
+ case SCE_ASY_OPERATOR:
+ sc.SetState(SCE_ASY_DEFAULT);
+ break;
+ case SCE_ASY_NUMBER:
+ if (!setWord.Contains(sc.ch)) {
+ sc.SetState(SCE_ASY_DEFAULT);
+ }
+ break;
+ case SCE_ASY_IDENTIFIER:
+ if (!setWord.Contains(sc.ch) || (sc.ch == '.')) {
+ char s[1000];
+ sc.GetCurrentLowered(s, sizeof(s));
+ if (keywords.InList(s)) {
+ sc.ChangeState(SCE_ASY_WORD);
+ } else if (keywords2.InList(s)) {
+ sc.ChangeState(SCE_ASY_WORD2);
+ }
+ sc.SetState(SCE_ASY_DEFAULT);
+ }
+ break;
+ case SCE_ASY_COMMENT:
+ if (sc.Match('*', '/')) {
+ sc.Forward();
+ sc.ForwardSetState(SCE_ASY_DEFAULT);
+ }
+ break;
+ case SCE_ASY_COMMENTLINE:
+ if (sc.atLineStart) {
+ sc.SetState(SCE_ASY_DEFAULT);
+ }
+ break;
+ case SCE_ASY_STRING:
+ if (sc.atLineEnd) {
+ sc.ChangeState(SCE_ASY_STRINGEOL);
+ } else if (sc.ch == '\\') {
+ if (sc.chNext == '\"' || sc.chNext == '\'' || sc.chNext == '\\') {
+ sc.Forward();
+ }
+ } else if (sc.ch == '\"') {
+ sc.ForwardSetState(SCE_ASY_DEFAULT);
+ }
+ break;
+ case SCE_ASY_CHARACTER:
+ if (sc.atLineEnd) {
+ sc.ChangeState(SCE_ASY_STRINGEOL);
+ } else if (sc.ch == '\\') {
+ if (sc.chNext == '\"' || sc.chNext == '\'' || sc.chNext == '\\') {
+ sc.Forward();
+ }
+ } else if (sc.ch == '\'') {
+ sc.ForwardSetState(SCE_ASY_DEFAULT);
+ }
+ break;
+ }
+
+ // Determine if a new state should be entered.
+ if (sc.state == SCE_ASY_DEFAULT) {
+ if (setWordStart.Contains(sc.ch) || (sc.ch == '@')) {
+ sc.SetState(SCE_ASY_IDENTIFIER);
+ } else if (sc.Match('/', '*')) {
+ sc.SetState(SCE_ASY_COMMENT);
+ sc.Forward(); //
+ } else if (sc.Match('/', '/')) {
+ sc.SetState(SCE_ASY_COMMENTLINE);
+ } else if (sc.ch == '\"') {
+ sc.SetState(SCE_ASY_STRING);
+ } else if (sc.ch == '\'') {
+ sc.SetState(SCE_ASY_CHARACTER);
+ } else if (sc.ch == '#' && visibleChars == 0) {
+ do {
+ sc.Forward();
+ } while ((sc.ch == ' ' || sc.ch == '\t') && sc.More());
+ if (sc.atLineEnd) {
+ sc.SetState(SCE_ASY_DEFAULT);
+ }
+ } else if (isoperator(static_cast<char>(sc.ch))) {
+ sc.SetState(SCE_ASY_OPERATOR);
+ }
+ }
+
+ }
+ sc.Complete();
+}
+
+static bool IsAsyCommentStyle(int style) {
+ return style == SCE_ASY_COMMENT;
+}
+
+
+static inline bool isASYidentifier(int ch) {
+ return
+ ((ch >= 'a') && (ch <= 'z')) || ((ch >= 'A') && (ch <= 'Z')) ;
+}
+
+static int ParseASYWord(unsigned int pos, Accessor &styler, char *word)
+{
+ int length=0;
+ char ch=styler.SafeGetCharAt(pos);
+ *word=0;
+
+ while(isASYidentifier(ch) && length<100){
+ word[length]=ch;
+ length++;
+ ch=styler.SafeGetCharAt(pos+length);
+ }
+ word[length]=0;
+ return length;
+}
+
+static bool IsASYDrawingLine(int line, Accessor &styler) {
+ int pos = styler.LineStart(line);
+ int eol_pos = styler.LineStart(line + 1) - 1;
+
+ int startpos = pos;
+ char buffer[100]="";
+
+ while (startpos<eol_pos){
+ char ch = styler[startpos];
+ ParseASYWord(startpos,styler,buffer);
+ bool drawcommands = strncmp(buffer,"draw",4)==0||
+ strncmp(buffer,"pair",4)==0||strncmp(buffer,"label",5)==0;
+ if (!drawcommands && ch!=' ') return false;
+ else if (drawcommands) return true;
+ startpos++;
+ }
+ return false;
+}
+
+static void FoldAsyDoc(unsigned int startPos, int length, int initStyle,
+ WordList *[], Accessor &styler) {
+ bool foldComment = styler.GetPropertyInt("fold.comment") != 0;
+ bool foldCompact = styler.GetPropertyInt("fold.compact", 1) != 0;
+ bool foldAtElse = styler.GetPropertyInt("fold.at.else", 0) != 0;
+ unsigned int endPos = startPos + length;
+ int visibleChars = 0;
+ int lineCurrent = styler.GetLine(startPos);
+ int levelCurrent = SC_FOLDLEVELBASE;
+ if (lineCurrent > 0)
+ levelCurrent = styler.LevelAt(lineCurrent-1) >> 16;
+ int levelMinCurrent = levelCurrent;
+ int levelNext = levelCurrent;
+ char chNext = styler[startPos];
+ int styleNext = styler.StyleAt(startPos);
+ int style = initStyle;
+ for (unsigned int i = startPos; i < endPos; i++) {
+ char ch = chNext;
+ chNext = styler.SafeGetCharAt(i + 1);
+ int stylePrev = style;
+ style = styleNext;
+ styleNext = styler.StyleAt(i + 1);
+ bool atEOL = (ch == '\r' && chNext != '\n') || (ch == '\n');
+ if (foldComment && IsAsyCommentStyle(style)) {
+ if (!IsAsyCommentStyle(stylePrev) && (stylePrev != SCE_ASY_COMMENTLINEDOC)) {
+ levelNext++;
+ } else if (!IsAsyCommentStyle(styleNext) && (styleNext != SCE_ASY_COMMENTLINEDOC) && !atEOL) {
+ levelNext--;
+ }
+ }
+ if (style == SCE_ASY_OPERATOR) {
+ if (ch == '{') {
+ if (levelMinCurrent > levelNext) {
+ levelMinCurrent = levelNext;
+ }
+ levelNext++;
+ } else if (ch == '}') {
+ levelNext--;
+ }
+ }
+
+ if (atEOL && IsASYDrawingLine(lineCurrent, styler)){
+ if (lineCurrent==0 && IsASYDrawingLine(lineCurrent + 1, styler))
+ levelNext++;
+ else if (lineCurrent!=0 && !IsASYDrawingLine(lineCurrent - 1, styler)
+ && IsASYDrawingLine(lineCurrent + 1, styler)
+ )
+ levelNext++;
+ else if (lineCurrent!=0 && IsASYDrawingLine(lineCurrent - 1, styler) &&
+ !IsASYDrawingLine(lineCurrent+1, styler))
+ levelNext--;
+ }
+
+ if (atEOL) {
+ int levelUse = levelCurrent;
+ if (foldAtElse) {
+ levelUse = levelMinCurrent;
+ }
+ int lev = levelUse | levelNext << 16;
+ if (visibleChars == 0 && foldCompact)
+ lev |= SC_FOLDLEVELWHITEFLAG;
+ if (levelUse < levelNext)
+ lev |= SC_FOLDLEVELHEADERFLAG;
+ if (lev != styler.LevelAt(lineCurrent)) {
+ styler.SetLevel(lineCurrent, lev);
+ }
+ lineCurrent++;
+ levelCurrent = levelNext;
+ levelMinCurrent = levelCurrent;
+ visibleChars = 0;
+ }
+ if (!IsASpace(ch))
+ visibleChars++;
+ }
+}
+
+static const char * const asyWordLists[] = {
+ "Primary keywords and identifiers",
+ "Secondary keywords and identifiers",
+ 0,
+ };
+
+LexerModule lmASY(SCLEX_ASYMPTOTE, ColouriseAsyDoc, "asy", FoldAsyDoc, asyWordLists);
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