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-rw-r--r--src/LexEScript.cxx270
1 files changed, 270 insertions, 0 deletions
diff --git a/src/LexEScript.cxx b/src/LexEScript.cxx
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+// Scintilla source code edit control
+/** @file LexESCRIPT.cxx
+ ** Lexer for ESCRIPT
+ **/
+// Copyright 2003 by Patrizio Bekerle (patrizio@bekerle.com)
+
+#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"
+
+
+
+static inline bool IsAWordChar(const int ch) {
+ return (ch < 0x80) && (isalnum(ch) || ch == '.' || ch == '_');
+}
+
+static inline bool IsAWordStart(const int ch) {
+ return (ch < 0x80) && (isalnum(ch) || ch == '_');
+}
+
+
+
+static void ColouriseESCRIPTDoc(unsigned int startPos, int length, int initStyle, WordList *keywordlists[],
+ Accessor &styler) {
+
+ WordList &keywords = *keywordlists[0];
+ WordList &keywords2 = *keywordlists[1];
+ WordList &keywords3 = *keywordlists[2];
+
+ // Do not leak onto next line
+ /*if (initStyle == SCE_ESCRIPT_STRINGEOL)
+ initStyle = SCE_ESCRIPT_DEFAULT;*/
+
+ StyleContext sc(startPos, length, initStyle, styler);
+
+ bool caseSensitive = styler.GetPropertyInt("escript.case.sensitive", 0) != 0;
+
+ for (; sc.More(); sc.Forward()) {
+
+ /*if (sc.atLineStart && (sc.state == SCE_ESCRIPT_STRING)) {
+ // Prevent SCE_ESCRIPT_STRINGEOL from leaking back to previous line
+ sc.SetState(SCE_ESCRIPT_STRING);
+ }*/
+
+ // Handle line continuation generically.
+ if (sc.ch == '\\') {
+ if (sc.chNext == '\n' || sc.chNext == '\r') {
+ sc.Forward();
+ if (sc.ch == '\r' && sc.chNext == '\n') {
+ sc.Forward();
+ }
+ continue;
+ }
+ }
+
+ // Determine if the current state should terminate.
+ if (sc.state == SCE_ESCRIPT_OPERATOR || sc.state == SCE_ESCRIPT_BRACE) {
+ sc.SetState(SCE_ESCRIPT_DEFAULT);
+ } else if (sc.state == SCE_ESCRIPT_NUMBER) {
+ if (!IsADigit(sc.ch) || sc.ch != '.') {
+ sc.SetState(SCE_ESCRIPT_DEFAULT);
+ }
+ } else if (sc.state == SCE_ESCRIPT_IDENTIFIER) {
+ if (!IsAWordChar(sc.ch) || (sc.ch == '.')) {
+ char s[100];
+ if (caseSensitive) {
+ sc.GetCurrent(s, sizeof(s));
+ } else {
+ sc.GetCurrentLowered(s, sizeof(s));
+ }
+
+// sc.GetCurrentLowered(s, sizeof(s));
+
+ if (keywords.InList(s)) {
+ sc.ChangeState(SCE_ESCRIPT_WORD);
+ } else if (keywords2.InList(s)) {
+ sc.ChangeState(SCE_ESCRIPT_WORD2);
+ } else if (keywords3.InList(s)) {
+ sc.ChangeState(SCE_ESCRIPT_WORD3);
+ // sc.state = SCE_ESCRIPT_IDENTIFIER;
+ }
+ sc.SetState(SCE_ESCRIPT_DEFAULT);
+ }
+ } else if (sc.state == SCE_ESCRIPT_COMMENT) {
+ if (sc.Match('*', '/')) {
+ sc.Forward();
+ sc.ForwardSetState(SCE_ESCRIPT_DEFAULT);
+ }
+ } else if (sc.state == SCE_ESCRIPT_COMMENTDOC) {
+ if (sc.Match('*', '/')) {
+ sc.Forward();
+ sc.ForwardSetState(SCE_ESCRIPT_DEFAULT);
+ }
+ } else if (sc.state == SCE_ESCRIPT_COMMENTLINE) {
+ if (sc.atLineEnd) {
+ sc.SetState(SCE_ESCRIPT_DEFAULT);
+ }
+ } else if (sc.state == SCE_ESCRIPT_STRING) {
+ if (sc.ch == '\\') {
+ if (sc.chNext == '\"' || sc.chNext == '\\') {
+ sc.Forward();
+ }
+ } else if (sc.ch == '\"') {
+ sc.ForwardSetState(SCE_ESCRIPT_DEFAULT);
+ }
+ }
+
+ // Determine if a new state should be entered.
+ if (sc.state == SCE_ESCRIPT_DEFAULT) {
+ if (IsADigit(sc.ch) || (sc.ch == '.' && IsADigit(sc.chNext))) {
+ sc.SetState(SCE_ESCRIPT_NUMBER);
+ } else if (IsAWordStart(sc.ch) || (sc.ch == '#')) {
+ sc.SetState(SCE_ESCRIPT_IDENTIFIER);
+ } else if (sc.Match('/', '*')) {
+ sc.SetState(SCE_ESCRIPT_COMMENT);
+ sc.Forward(); // Eat the * so it isn't used for the end of the comment
+ } else if (sc.Match('/', '/')) {
+ sc.SetState(SCE_ESCRIPT_COMMENTLINE);
+ } else if (sc.ch == '\"') {
+ sc.SetState(SCE_ESCRIPT_STRING);
+ //} else if (isoperator(static_cast<char>(sc.ch))) {
+ } else if (sc.ch == '+' || sc.ch == '-' || sc.ch == '*' || sc.ch == '/' || sc.ch == '=' || sc.ch == '<' || sc.ch == '>' || sc.ch == '&' || sc.ch == '|' || sc.ch == '!' || sc.ch == '?' || sc.ch == ':') {
+ sc.SetState(SCE_ESCRIPT_OPERATOR);
+ } else if (sc.ch == '{' || sc.ch == '}') {
+ sc.SetState(SCE_ESCRIPT_BRACE);
+ }
+ }
+
+ }
+ sc.Complete();
+}
+
+
+static int classifyFoldPointESCRIPT(const char* s, const char* prevWord) {
+ int lev = 0;
+ if (strcmp(prevWord, "end") == 0) return lev;
+ if ((strcmp(prevWord, "else") == 0 && strcmp(s, "if") == 0) || strcmp(s, "elseif") == 0)
+ return -1;
+
+ if (strcmp(s, "for") == 0 || strcmp(s, "foreach") == 0
+ || strcmp(s, "program") == 0 || strcmp(s, "function") == 0
+ || strcmp(s, "while") == 0 || strcmp(s, "case") == 0
+ || strcmp(s, "if") == 0 ) {
+ lev = 1;
+ } else if ( strcmp(s, "endfor") == 0 || strcmp(s, "endforeach") == 0
+ || strcmp(s, "endprogram") == 0 || strcmp(s, "endfunction") == 0
+ || strcmp(s, "endwhile") == 0 || strcmp(s, "endcase") == 0
+ || strcmp(s, "endif") == 0 ) {
+ lev = -1;
+ }
+
+ return lev;
+}
+
+
+static bool IsStreamCommentStyle(int style) {
+ return style == SCE_ESCRIPT_COMMENT ||
+ style == SCE_ESCRIPT_COMMENTDOC ||
+ style == SCE_ESCRIPT_COMMENTLINE;
+}
+
+static void FoldESCRIPTDoc(unsigned int startPos, int length, int initStyle, WordList *[], Accessor &styler) {
+ //~ bool foldComment = styler.GetPropertyInt("fold.comment") != 0;
+ // Do not know how to fold the comment at the moment.
+ bool foldCompact = styler.GetPropertyInt("fold.compact", 1) != 0;
+ bool foldComment = true;
+ unsigned int endPos = startPos + length;
+ int visibleChars = 0;
+ int lineCurrent = styler.GetLine(startPos);
+ int levelPrev = styler.LevelAt(lineCurrent) & SC_FOLDLEVELNUMBERMASK;
+ int levelCurrent = levelPrev;
+ char chNext = styler[startPos];
+ int styleNext = styler.StyleAt(startPos);
+ int style = initStyle;
+
+ int lastStart = 0;
+ char prevWord[32] = "";
+
+ 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 && IsStreamCommentStyle(style)) {
+ if (!IsStreamCommentStyle(stylePrev)) {
+ levelCurrent++;
+ } else if (!IsStreamCommentStyle(styleNext) && !atEOL) {
+ // Comments don't end at end of line and the next character may be unstyled.
+ levelCurrent--;
+ }
+ }
+
+ if (foldComment && (style == SCE_ESCRIPT_COMMENTLINE)) {
+ if ((ch == '/') && (chNext == '/')) {
+ char chNext2 = styler.SafeGetCharAt(i + 2);
+ if (chNext2 == '{') {
+ levelCurrent++;
+ } else if (chNext2 == '}') {
+ levelCurrent--;
+ }
+ }
+ }
+
+ if (stylePrev == SCE_ESCRIPT_DEFAULT && style == SCE_ESCRIPT_WORD3)
+ {
+ // Store last word start point.
+ lastStart = i;
+ }
+
+ if (style == SCE_ESCRIPT_WORD3) {
+ if(iswordchar(ch) && !iswordchar(chNext)) {
+ char s[32];
+ unsigned int j;
+ for(j = 0; ( j < 31 ) && ( j < i-lastStart+1 ); j++) {
+ s[j] = static_cast<char>(tolower(styler[lastStart + j]));
+ }
+ s[j] = '\0';
+ levelCurrent += classifyFoldPointESCRIPT(s, prevWord);
+ strcpy(prevWord, s);
+ }
+ }
+ if (atEOL) {
+ int lev = levelPrev;
+ if (visibleChars == 0 && foldCompact)
+ lev |= SC_FOLDLEVELWHITEFLAG;
+ if ((levelCurrent > levelPrev) && (visibleChars > 0))
+ lev |= SC_FOLDLEVELHEADERFLAG;
+ if (lev != styler.LevelAt(lineCurrent)) {
+ styler.SetLevel(lineCurrent, lev);
+ }
+ lineCurrent++;
+ levelPrev = levelCurrent;
+ visibleChars = 0;
+ strcpy(prevWord, "");
+ }
+
+ if (!isspacechar(ch))
+ visibleChars++;
+ }
+
+ // Fill in the real level of the next line, keeping the current flags as they will be filled in later
+ int flagsNext = styler.LevelAt(lineCurrent) & ~SC_FOLDLEVELNUMBERMASK;
+ styler.SetLevel(lineCurrent, levelPrev | flagsNext);
+}
+
+
+
+static const char * const ESCRIPTWordLists[] = {
+ "Primary keywords and identifiers",
+ "Intrinsic functions",
+ "Extended and user defined functions",
+ 0,
+};
+
+LexerModule lmESCRIPT(SCLEX_ESCRIPT, ColouriseESCRIPTDoc, "escript", FoldESCRIPTDoc, ESCRIPTWordLists);
generated by cgit v1.2.3 (git 2.25.1) at 2025-10-31 23:03:29 +0000