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