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+// Scintilla source code edit control
+/** @file LexTADS3.cxx
+ ** Lexer for TADS3.
+ **/
+/* Copyright 2005 by Michael Cartmell
+ * Parts copyright 1998-2002 by Neil Hodgson <neilh@scintilla.org>
+ * In particular FoldTADS3Doc is derived from FoldCppDoc
+ * The License.txt file describes the conditions under which this software may
+ * be distributed.
+ */
+
+/*
+ * TADS3 is a language designed by Michael J. Roberts for the writing of text
+ * based games. TADS comes from Text Adventure Development System. It has good
+ * support for the processing and outputting of formatted text and much of a
+ * TADS program listing consists of strings.
+ *
+ * TADS has two types of strings, those enclosed in single quotes (') and those
+ * enclosed in double quotes ("). These strings have different symantics and
+ * can be given different highlighting if desired.
+ *
+ * There can be embedded within both types of strings html tags
+ * ( <tag key=value> ), library directives ( <.directive> ), and message
+ * parameters ( {The doctor's/his} ).
+ *
+ * Double quoted strings can also contain interpolated expressions
+ * ( << rug.moved ? ' and a hole in the floor. ' : nil >> ). These expressions
+ * may themselves contain single or double quoted strings, although the double
+ * quoted strings may not contain interpolated expressions.
+ *
+ * These embedded constructs influence the output and formatting and are an
+ * important part of a program and require highlighting.
+ *
+ * Because strings, html tags, library directives, message parameters, and
+ * interpolated expressions may span multiple lines it is necessary to have
+ * multiple states for a single construct so that the surrounding context can be
+ * known. This is important if scanning starts part way through a source file.
+ *
+ * States that have a Single quoted string context have _S_ in the name
+ * States that have a Double quoted string context have _D_ in the name
+ * States that have an interpolated eXpression context have _X_ in the name
+ * eg SCE_T3_X_S_MSG_PARAM is a message parameter in a single quoted string
+ * that is part of an interpolated expression.
+ * "You see << isKnown? '{iobj/him} lying' : 'nothing' >> on the ground. "
+ * ----------
+ *
+ * TO DO
+ *
+ * top level blocks can have one of two forms
+ *
+ * cave : DarkRoom 'small cave' 'small cave'
+ * "There is barely enough room to stand in this small cave. "
+ * ;
+ *
+ * or
+ *
+ * cave : DarkRoom {
+ * 'small cave'
+ * 'small cave'
+ * "There is barely enough room to stand in this small cave. "
+ * }
+ *
+ * currently only the latter form is folded.
+ *
+ * LINKS
+ * http://www.tads.org/
+ */
+
+#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 unsigned int endPos;
+
+static inline bool IsEOL(const int ch) {
+ return ch == '\r' || ch == '\n';
+}
+
+static inline bool IsASpaceOrTab(const int ch) {
+ return ch == ' ' || ch == '\t';
+}
+
+static inline bool IsATADS3Operator(const int ch) {
+ return ch == '+' || ch == '-' || ch == '*' || ch == '/' || ch == '|'
+ || ch == '!' || ch == ':' || ch == '?' || ch == '@' || ch == ';'
+ || ch == '&' || ch == '<' || ch == '>' || ch == '=';
+}
+
+static inline bool IsAWordChar(const int ch) {
+ return isalnum(ch) || ch == '_';
+}
+
+static inline bool IsAWordStart(const int ch) {
+ return isalpha(ch) || ch == '_';
+}
+
+static inline bool IsAHexDigit(const int ch) {
+ int lch = tolower(ch);
+ return isdigit(lch) || lch == 'a' || lch == 'b' || lch == 'c'
+ || lch == 'd' || lch == 'e' || lch == 'f';
+}
+
+static inline bool IsABracket(const int ch) {
+ return ch == '(' || ch == '{' || ch == '['
+ || ch == ')' || ch == '}' || ch == ']';
+}
+
+static inline bool IsAMsgParamChar(int ch) {
+ return isalpha(ch) || isspace(ch) || ch == '/' || ch == '\'' || ch == '\\';
+}
+
+static inline bool IsAnHTMLChar(int ch) {
+ return isalnum(ch) || ch == '-' || ch == '_' || ch == '.';
+}
+
+static inline bool IsADirectiveChar(int ch) {
+ return isalnum(ch) || isspace(ch) || ch == '-';
+}
+
+static inline bool IsANumberStart(StyleContext &sc) {
+ return isdigit(sc.ch)
+ || (!isdigit(sc.chPrev) && sc.ch == '.' && isdigit(sc.chNext));
+}
+
+inline static void ColouriseTADS3Operator(StyleContext &sc) {
+ int initState = sc.state;
+ sc.SetState(SCE_T3_OPERATOR);
+ sc.ForwardSetState(initState);
+}
+
+inline static void ColouriseTADS3Bracket(StyleContext &sc) {
+ int initState = sc.state;
+ sc.SetState(SCE_T3_BRACKET);
+ sc.ForwardSetState(initState);
+}
+
+static void ColouriseTADSHTMLString(StyleContext &sc) {
+ int initState = sc.state;
+ int quoteChar = sc.ch;
+ sc.SetState(SCE_T3_HTML_STRING);
+ sc.Forward();
+
+ while (sc.More()) {
+ if (sc.Match('\\', static_cast<char>(quoteChar))) {
+ sc.Forward(2);
+ }
+ if (sc.ch == quoteChar || IsEOL(sc.ch)) {
+ sc.ForwardSetState(initState);
+ return;
+ }
+ sc.Forward();
+ }
+}
+
+static void ColouriseTADS3HTMLTagStart(StyleContext &sc) {
+ sc.SetState(SCE_T3_HTML_TAG);
+ sc.Forward();
+ if (sc.ch == '/') {
+ sc.Forward();
+ }
+ while (IsAnHTMLChar(sc.ch)) {
+ sc.Forward();
+ }
+}
+
+static void ColouriseTADS3HTMLTag(StyleContext &sc) {
+ int initState = sc.state;
+ switch (initState) {
+ case SCE_T3_S_STRING:
+ ColouriseTADS3HTMLTagStart(sc);
+ sc.SetState(SCE_T3_S_H_DEFAULT);
+ break;
+ case SCE_T3_D_STRING:
+ ColouriseTADS3HTMLTagStart(sc);
+ sc.SetState(SCE_T3_S_H_DEFAULT);
+ break;
+ case SCE_T3_X_S_STRING:
+ ColouriseTADS3HTMLTagStart(sc);
+ sc.SetState(SCE_T3_X_S_H_DEFAULT);
+ break;
+ case SCE_T3_X_D_STRING:
+ ColouriseTADS3HTMLTagStart(sc);
+ sc.SetState(SCE_T3_X_D_H_DEFAULT);
+ break;
+ case SCE_T3_S_H_DEFAULT:
+ initState = SCE_T3_S_STRING;
+ break;
+ case SCE_T3_D_H_DEFAULT:
+ initState = SCE_T3_D_STRING;
+ break;
+ case SCE_T3_X_S_H_DEFAULT:
+ initState = SCE_T3_X_S_STRING;
+ break;
+ case SCE_T3_X_D_H_DEFAULT:
+ initState = SCE_T3_X_D_STRING;
+ break;
+ }
+
+ while (sc.More()) {
+ if (sc.Match('/', '>')) {
+ sc.SetState(SCE_T3_HTML_TAG);
+ sc.Forward(2);
+ sc.SetState(initState);
+ return;
+ } else if (sc.ch == '>') {
+ sc.SetState(SCE_T3_HTML_TAG);
+ sc.ForwardSetState(initState);
+ return;
+ }
+ if (sc.ch == '\'' || sc.ch == '"') {
+ ColouriseTADSHTMLString(sc);
+ } else if (sc.ch == '=') {
+ ColouriseTADS3Operator(sc);
+ } else {
+ sc.Forward();
+ }
+ }
+}
+
+static void ColouriseTADS3Keyword(StyleContext &sc,
+ WordList *keywordlists[]) {
+ static char s[250];
+ WordList &keywords = *keywordlists[0];
+ WordList &userwords1 = *keywordlists[1];
+ WordList &userwords2 = *keywordlists[2];
+ int initState = sc.state;
+ sc.SetState(SCE_T3_KEYWORD);
+ while (sc.More() && (IsAWordChar(sc.ch) || sc.ch == '.')) {
+ sc.Forward();
+ }
+ sc.GetCurrent(s, sizeof(s));
+ if (userwords1.InList(s)) {
+ sc.ChangeState(SCE_T3_USER1);
+ } else if (userwords2.InList(s)) {
+ sc.ChangeState(SCE_T3_USER2);
+ } else if (keywords.InList(s)) {
+ // state already correct
+ } else if ( strcmp(s, "is") == 0 || strcmp(s, "not") == 0) {
+ // have to find if "in" is next
+ int n = 1;
+ while (n + sc.currentPos < endPos && IsASpaceOrTab(sc.GetRelative(n)))
+ n++;
+ if (sc.GetRelative(n) == 'i' && sc.GetRelative(n+1) == 'n') {
+ sc.Forward(n+2);
+ } else {
+ sc.ChangeState(initState);
+ }
+ } else {
+ sc.ChangeState(initState);
+ }
+
+ sc.SetState(initState);
+}
+
+static void ColouriseTADS3MsgParam(StyleContext &sc) {
+ int initState = sc.state;
+ switch (initState) {
+ case SCE_T3_S_STRING:
+ sc.SetState(SCE_T3_S_MSG_PARAM);
+ sc.Forward();
+ break;
+ case SCE_T3_D_STRING:
+ sc.SetState(SCE_T3_D_MSG_PARAM);
+ sc.Forward();
+ break;
+ case SCE_T3_X_S_STRING:
+ sc.SetState(SCE_T3_X_S_MSG_PARAM);
+ sc.Forward();
+ break;
+ case SCE_T3_X_D_STRING:
+ sc.SetState(SCE_T3_X_D_MSG_PARAM);
+ sc.Forward();
+ break;
+ case SCE_T3_S_MSG_PARAM:
+ initState = SCE_T3_S_STRING;
+ break;
+ case SCE_T3_D_MSG_PARAM:
+ initState = SCE_T3_D_STRING;
+ break;
+ case SCE_T3_X_S_MSG_PARAM:
+ initState = SCE_T3_X_S_STRING;
+ break;
+ case SCE_T3_X_D_MSG_PARAM:
+ initState = SCE_T3_X_D_STRING;
+ break;
+ }
+ while (sc.More() && IsAMsgParamChar(sc.ch)) {
+ if (sc.ch == '\\') {
+ if (initState == SCE_T3_D_STRING) {
+ break;
+ } else if (sc.chNext != '\'') {
+ break;
+ }
+ }
+ sc.Forward();
+ }
+ if (sc.ch == '}' || !sc.More()) {
+ sc.ForwardSetState(initState);
+ } else {
+ sc.ChangeState(initState);
+ sc.Forward();
+ }
+}
+
+static void ColouriseTADS3LibDirective(StyleContext &sc) {
+ int initState = sc.state;
+ switch (initState) {
+ case SCE_T3_S_STRING:
+ sc.SetState(SCE_T3_S_LIB_DIRECTIVE);
+ sc.Forward(2);
+ break;
+ case SCE_T3_D_STRING:
+ sc.SetState(SCE_T3_D_LIB_DIRECTIVE);
+ sc.Forward(2);
+ break;
+ case SCE_T3_X_S_STRING:
+ sc.SetState(SCE_T3_X_S_LIB_DIRECTIVE);
+ sc.Forward(2);
+ break;
+ case SCE_T3_X_D_STRING:
+ sc.SetState(SCE_T3_X_D_LIB_DIRECTIVE);
+ sc.Forward(2);
+ break;
+ case SCE_T3_S_LIB_DIRECTIVE:
+ initState = SCE_T3_S_STRING;
+ break;
+ case SCE_T3_D_LIB_DIRECTIVE:
+ initState = SCE_T3_D_STRING;
+ break;
+ case SCE_T3_X_S_LIB_DIRECTIVE:
+ initState = SCE_T3_X_S_STRING;
+ break;
+ case SCE_T3_X_D_LIB_DIRECTIVE:
+ initState = SCE_T3_X_D_STRING;
+ break;
+ }
+ while (sc.More() && IsADirectiveChar(sc.ch)) {
+ sc.Forward();
+ };
+ if (sc.ch == '>' || !sc.More()) {
+ sc.ForwardSetState(initState);
+ } else {
+ sc.ChangeState(initState);
+ sc.Forward();
+ }
+}
+
+static void ColouriseTADS3String(StyleContext &sc) {
+ int quoteChar = sc.ch;
+ int initState = sc.state;
+ switch (sc.state) {
+ case SCE_T3_DEFAULT:
+ if (quoteChar == '"') {
+ sc.SetState(SCE_T3_D_STRING);
+ } else {
+ sc.SetState(SCE_T3_S_STRING);
+ }
+ sc.Forward();
+ break;
+ case SCE_T3_X_DEFAULT:
+ if (quoteChar == '"') {
+ sc.SetState(SCE_T3_X_D_STRING);
+ } else {
+ sc.SetState(SCE_T3_X_S_STRING);
+ }
+ sc.Forward();
+ break;
+ case SCE_T3_S_STRING:
+ quoteChar = '\'';
+ initState = SCE_T3_DEFAULT;
+ break;
+ case SCE_T3_D_STRING:
+ quoteChar = '"';
+ initState = SCE_T3_DEFAULT;
+ break;
+ case SCE_T3_X_S_STRING:
+ quoteChar = '\'';
+ initState = SCE_T3_X_DEFAULT;
+ break;
+ case SCE_T3_X_D_STRING:
+ quoteChar = '"';
+ initState = SCE_T3_X_DEFAULT;
+ break;
+ }
+ while (sc.More()) {
+ if (sc.Match('\\', static_cast<char>(quoteChar))) {
+ sc.Forward(2);
+ }
+ if (sc.ch == quoteChar) {
+ sc.ForwardSetState(initState);
+ return;
+ }
+ if (sc.ch == '{') {
+ ColouriseTADS3MsgParam(sc);
+ } else if (sc.state == SCE_T3_D_STRING && sc.Match('<', '<')) {
+ sc.SetState(SCE_T3_X_DEFAULT);
+ sc.Forward(2);
+ return;
+ } else if (sc.Match('<', '.')) {
+ ColouriseTADS3LibDirective(sc);
+ } else if (sc.ch == '<') {
+ ColouriseTADS3HTMLTag(sc);
+ } else {
+ sc.Forward();
+ }
+ }
+}
+
+static void ColouriseTADS3Comment(StyleContext &sc, const int initState,
+ const int endState) {
+ if (sc.state != initState) {
+ sc.SetState(initState);
+ }
+ for (; sc.More(); sc.Forward()) {
+ if (sc.Match('*', '/')) {
+ sc.Forward(2);
+ sc.SetState(endState);
+ return;
+ }
+ }
+}
+
+static void ColouriseToEndOfLine(StyleContext &sc, const int initState,
+ const int endState) {
+ if (sc.state != initState) {
+ sc.SetState(initState);
+ }
+ for (; sc.More(); sc.Forward()) {
+ if (sc.ch == '\\') {
+ if (IsEOL(sc.chNext)) {
+ sc.Forward();
+ if (sc.ch == '\r' && sc.chNext == '\n') {
+ sc.Forward();
+ }
+ continue;
+ }
+ }
+ if (IsEOL(sc.ch)) {
+ sc.SetState(endState);
+ return;
+ }
+ }
+}
+
+static void ColouriseTADS3Number(StyleContext &sc) {
+ int initState = sc.state;
+ bool inHexNumber = false;
+ bool seenE = false;
+ bool seenDot = sc.ch == '.';
+ sc.SetState(SCE_T3_NUMBER);
+ if (sc.More()) {
+ sc.Forward();
+ }
+ if (sc.chPrev == '0' && tolower(sc.ch) == 'x') {
+ inHexNumber = true;
+ sc.Forward();
+ }
+ for (; sc.More(); sc.Forward()) {
+ if (inHexNumber) {
+ if (!IsAHexDigit(sc.ch)) {
+ break;
+ }
+ } else if (!isdigit(sc.ch)) {
+ if (!seenE && tolower(sc.ch) == 'e') {
+ seenE = true;
+ seenDot = true;
+ if (sc.chNext == '+' || sc.chNext == '-') {
+ sc.Forward();
+ }
+ } else if (!seenDot && sc.ch == '.') {
+ seenDot = true;
+ } else {
+ break;
+ }
+ }
+ }
+ sc.SetState(initState);
+}
+
+static void ColouriseTADS3Doc(unsigned int startPos, int length, int initStyle,
+ WordList *keywordlists[], Accessor &styler) {
+ int visibleChars = 0;
+ int bracketLevel = 0;
+ endPos = startPos + length;
+ StyleContext sc(startPos, length, initStyle, styler);
+
+ while (sc.More()) {
+
+ if (IsEOL(sc.ch)) {
+ visibleChars = 0;
+ sc.Forward();
+ continue;
+ }
+
+ switch(sc.state) {
+ case SCE_T3_PREPROCESSOR:
+ case SCE_T3_LINE_COMMENT:
+ ColouriseToEndOfLine(sc, sc.state, SCE_T3_DEFAULT);
+ break;
+ case SCE_T3_X_PREPROCESSOR:
+ case SCE_T3_X_LINE_COMMENT:
+ ColouriseToEndOfLine(sc, sc.state, SCE_T3_X_DEFAULT);
+ break;
+ case SCE_T3_S_STRING:
+ case SCE_T3_D_STRING:
+ case SCE_T3_X_S_STRING:
+ case SCE_T3_X_D_STRING:
+ ColouriseTADS3String(sc);
+ visibleChars++;
+ break;
+ case SCE_T3_S_MSG_PARAM:
+ case SCE_T3_D_MSG_PARAM:
+ case SCE_T3_X_S_MSG_PARAM:
+ case SCE_T3_X_D_MSG_PARAM:
+ ColouriseTADS3MsgParam(sc);
+ break;
+ case SCE_T3_S_LIB_DIRECTIVE:
+ case SCE_T3_D_LIB_DIRECTIVE:
+ case SCE_T3_X_S_LIB_DIRECTIVE:
+ case SCE_T3_X_D_LIB_DIRECTIVE:
+ ColouriseTADS3LibDirective(sc);
+ break;
+ case SCE_T3_S_H_DEFAULT:
+ case SCE_T3_D_H_DEFAULT:
+ case SCE_T3_X_S_H_DEFAULT:
+ case SCE_T3_X_D_H_DEFAULT:
+ ColouriseTADS3HTMLTag(sc);
+ break;
+ case SCE_T3_BLOCK_COMMENT:
+ ColouriseTADS3Comment(sc, SCE_T3_BLOCK_COMMENT, SCE_T3_DEFAULT);
+ break;
+ case SCE_T3_X_BLOCK_COMMENT:
+ ColouriseTADS3Comment(sc, SCE_T3_X_BLOCK_COMMENT, SCE_T3_X_DEFAULT);
+ break;
+ case SCE_T3_DEFAULT:
+ if (IsASpaceOrTab(sc.ch)) {
+ sc.Forward();
+ } else if (sc.ch == '#' && visibleChars == 0) {
+ ColouriseToEndOfLine(sc, SCE_T3_PREPROCESSOR, SCE_T3_DEFAULT);
+ } else if (sc.Match('/', '*')) {
+ ColouriseTADS3Comment(sc, SCE_T3_BLOCK_COMMENT, SCE_T3_DEFAULT);
+ visibleChars++;
+ } else if (sc.Match('/', '/')) {
+ ColouriseToEndOfLine(sc, SCE_T3_LINE_COMMENT, SCE_T3_DEFAULT);
+ } else if (sc.ch == '\'' || sc.ch == '"') {
+ ColouriseTADS3String(sc);
+ visibleChars++;
+ } else if (IsATADS3Operator(sc.ch)) {
+ ColouriseTADS3Operator(sc);
+ visibleChars++;
+ } else if (IsANumberStart(sc)) {
+ ColouriseTADS3Number(sc);
+ visibleChars++;
+ } else if (IsABracket(sc.ch)) {
+ ColouriseTADS3Bracket(sc);
+ visibleChars++;
+ } else if (IsAWordStart(sc.ch)) {
+ ColouriseTADS3Keyword(sc, keywordlists);
+ visibleChars++;
+ } else {
+ sc.Forward();
+ visibleChars++;
+ }
+ break;
+ case SCE_T3_X_DEFAULT:
+ if (IsASpaceOrTab(sc.ch)) {
+ sc.Forward();
+ } else if (sc.ch == '#' && visibleChars == 0) {
+ ColouriseToEndOfLine(sc, SCE_T3_X_PREPROCESSOR, SCE_T3_X_DEFAULT);
+ } else if (sc.Match('/', '*')) {
+ ColouriseTADS3Comment(sc, SCE_T3_X_BLOCK_COMMENT, SCE_T3_X_DEFAULT);
+ visibleChars++;
+ } else if (sc.Match('/', '/')) {
+ ColouriseToEndOfLine(sc, SCE_T3_X_LINE_COMMENT, SCE_T3_X_DEFAULT);
+ } else if (sc.ch == '\'' || sc.ch == '"') {
+ ColouriseTADS3String(sc);
+ visibleChars++;
+ } else if (bracketLevel == 0 && sc.Match('>', '>')) {
+ sc.Forward(2);
+ sc.SetState(SCE_T3_D_STRING);
+ } else if (IsATADS3Operator(sc.ch)) {
+ ColouriseTADS3Operator(sc);
+ visibleChars++;
+ } else if (IsANumberStart(sc)) {
+ ColouriseTADS3Number(sc);
+ visibleChars++;
+ } else if (IsABracket(sc.ch)) {
+ if (sc.ch == '(') {
+ bracketLevel++;
+ } else if (sc.ch == ')') {
+ bracketLevel && bracketLevel--;
+ }
+ ColouriseTADS3Bracket(sc);
+ visibleChars++;
+ } else if (IsAWordStart(sc.ch)) {
+ ColouriseTADS3Keyword(sc, keywordlists);
+ visibleChars++;
+ } else {
+ sc.Forward();
+ visibleChars++;
+ }
+ break;
+ default:
+ sc.SetState(SCE_T3_DEFAULT);
+ sc.Forward();
+ }
+ }
+ sc.Complete();
+}
+
+static inline bool IsStreamCommentStyle(int style) {
+ return style == SCE_T3_BLOCK_COMMENT
+ || style == SCE_T3_X_BLOCK_COMMENT;
+}
+
+static inline bool IsStringTransition(int s1, int s2) {
+ switch (s1) {
+ case SCE_T3_S_STRING:
+ return s2 != s1
+ && s2 != SCE_T3_S_LIB_DIRECTIVE
+ && s2 != SCE_T3_S_MSG_PARAM
+ && s2 != SCE_T3_HTML_TAG;
+ case SCE_T3_D_STRING:
+ return s2 != s1
+ && s2 != SCE_T3_D_LIB_DIRECTIVE
+ && s2 != SCE_T3_D_MSG_PARAM
+ && s2 != SCE_T3_HTML_TAG
+ && s2 != SCE_T3_X_DEFAULT;
+ case SCE_T3_X_S_STRING:
+ return s2 != s1
+ && s2 != SCE_T3_X_S_LIB_DIRECTIVE
+ && s2 != SCE_T3_X_S_MSG_PARAM
+ && s2 != SCE_T3_HTML_TAG;
+ case SCE_T3_X_D_STRING:
+ return s2 != s1
+ && s2 != SCE_T3_X_D_LIB_DIRECTIVE
+ && s2 != SCE_T3_X_D_MSG_PARAM
+ && s2 != SCE_T3_HTML_TAG;
+ default:
+ return false;
+ }
+}
+
+static void FoldTADS3Doc(unsigned int startPos, int length, int initStyle,
+ WordList *[], Accessor &styler) {
+ unsigned int endPos = startPos + length;
+ 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 (IsStreamCommentStyle(style)) {
+ if (!IsStreamCommentStyle(stylePrev)) {
+ levelNext++;
+ } else if (!IsStreamCommentStyle(styleNext) && !atEOL) {
+ // Comments don't end at end of line and the next character may be unstyled.
+ levelNext--;
+ }
+ } else if (style == SCE_T3_BRACKET) {
+ if (ch == '{' || ch == '[') {
+ // Measure the minimum before a '{' to allow
+ // folding on "} else {"
+ if (levelMinCurrent > levelNext) {
+ levelMinCurrent = levelNext;
+ }
+ levelNext++;
+ } else if (ch == '}' || ch == ']') {
+ levelNext--;
+ }
+ } else if ((ch == '\'' || ch == '"')) {
+ if (IsStringTransition(style, stylePrev)) {
+ if (levelMinCurrent > levelNext) {
+ levelMinCurrent = levelNext;
+ }
+ levelNext++;
+ } else if (IsStringTransition(style, styleNext)) {
+ levelNext--;
+ }
+ }
+
+ if (atEOL) {
+ int lev = levelMinCurrent | levelNext << 16;
+ if (levelMinCurrent < levelNext)
+ lev |= SC_FOLDLEVELHEADERFLAG;
+ if (lev != styler.LevelAt(lineCurrent)) {
+ styler.SetLevel(lineCurrent, lev);
+ }
+ lineCurrent++;
+ levelCurrent = levelNext;
+ levelMinCurrent = levelCurrent;
+ }
+ }
+}
+
+static const char * const tads3WordList[] = {
+ "TADS3 Keywords",
+ "User defined 1",
+ "User defined 2",
+ 0
+};
+
+LexerModule lmTADS3(SCLEX_TADS3, ColouriseTADS3Doc, "tads3", FoldTADS3Doc, tads3WordList);
generated by cgit v1.2.3 (git 2.25.1) at 2025-10-14 09:22:13 +0000