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-rwxr-xr-xsrc/LexAVE.cpp225
1 files changed, 225 insertions, 0 deletions
diff --git a/src/LexAVE.cpp b/src/LexAVE.cpp
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+++ b/src/LexAVE.cpp
@@ -0,0 +1,225 @@
+// SciTE - Scintilla based Text Editor
+/** @file LexAVE.cxx
+ ** Lexer for Avenue.
+ **
+ ** Written by Alexey Yutkin <yutkin@geol.msu.ru>.
+ **/
+// Copyright 1998-2002 by Neil Hodgson <neilh@scintilla.org>
+// The License.txt file describes the conditions under which this software may be distributed.
+
+#include <stdlib.h>
+#include <string.h>
+#include <ctype.h>
+#include <stdarg.h>
+#include <stdio.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 IsEnumChar(const int ch) {
+ return (ch < 0x80) && (isalnum(ch)|| ch == '_');
+}
+static inline bool IsANumberChar(const int ch) {
+ return (ch < 0x80) && (isalnum(ch) || ch == '.' );
+}
+
+inline bool IsAWordStart(const int ch) {
+ return (ch < 0x80) && (isalnum(ch) || ch == '_');
+}
+
+inline bool isAveOperator(char ch) {
+ if (isalnum(ch))
+ return false;
+ // '.' left out as it is used to make up numbers
+ if (ch == '*' || ch == '/' || ch == '-' || ch == '+' ||
+ ch == '(' || ch == ')' || ch == '=' ||
+ ch == '{' || ch == '}' ||
+ ch == '[' || ch == ']' || ch == ';' ||
+ ch == '<' || ch == '>' || ch == ',' ||
+ ch == '.' )
+ return true;
+ return false;
+}
+
+static void ColouriseAveDoc(
+ unsigned int startPos,
+ int length,
+ int initStyle,
+ WordList *keywordlists[],
+ Accessor &styler) {
+
+ WordList &keywords = *keywordlists[0];
+ WordList &keywords2 = *keywordlists[1];
+ WordList &keywords3 = *keywordlists[2];
+ WordList &keywords4 = *keywordlists[3];
+ WordList &keywords5 = *keywordlists[4];
+ WordList &keywords6 = *keywordlists[5];
+
+ // Do not leak onto next line
+ if (initStyle == SCE_AVE_STRINGEOL) {
+ initStyle = SCE_AVE_DEFAULT;
+ }
+
+ StyleContext sc(startPos, length, initStyle, styler);
+
+ for (; sc.More(); sc.Forward()) {
+ if (sc.atLineEnd) {
+ // Update the line state, so it can be seen by next line
+ int currentLine = styler.GetLine(sc.currentPos);
+ styler.SetLineState(currentLine, 0);
+ }
+ if (sc.atLineStart && (sc.state == SCE_AVE_STRING)) {
+ // Prevent SCE_AVE_STRINGEOL from leaking back to previous line
+ sc.SetState(SCE_AVE_STRING);
+ }
+
+
+ // Determine if the current state should terminate.
+ if (sc.state == SCE_AVE_OPERATOR) {
+ sc.SetState(SCE_AVE_DEFAULT);
+ } else if (sc.state == SCE_AVE_NUMBER) {
+ if (!IsANumberChar(sc.ch)) {
+ sc.SetState(SCE_AVE_DEFAULT);
+ }
+ } else if (sc.state == SCE_AVE_ENUM) {
+ if (!IsEnumChar(sc.ch)) {
+ sc.SetState(SCE_AVE_DEFAULT);
+ }
+ } else if (sc.state == SCE_AVE_IDENTIFIER) {
+ if (!IsAWordChar(sc.ch) || (sc.ch == '.')) {
+ char s[100];
+ //sc.GetCurrent(s, sizeof(s));
+ sc.GetCurrentLowered(s, sizeof(s));
+ if (keywords.InList(s)) {
+ sc.ChangeState(SCE_AVE_WORD);
+ } else if (keywords2.InList(s)) {
+ sc.ChangeState(SCE_AVE_WORD2);
+ } else if (keywords3.InList(s)) {
+ sc.ChangeState(SCE_AVE_WORD3);
+ } else if (keywords4.InList(s)) {
+ sc.ChangeState(SCE_AVE_WORD4);
+ } else if (keywords5.InList(s)) {
+ sc.ChangeState(SCE_AVE_WORD5);
+ } else if (keywords6.InList(s)) {
+ sc.ChangeState(SCE_AVE_WORD6);
+ }
+ sc.SetState(SCE_AVE_DEFAULT);
+ }
+ } else if (sc.state == SCE_AVE_COMMENT) {
+ if (sc.atLineEnd) {
+ sc.SetState(SCE_AVE_DEFAULT);
+ }
+ } else if (sc.state == SCE_AVE_STRING) {
+ if (sc.ch == '\"') {
+ sc.ForwardSetState(SCE_AVE_DEFAULT);
+ } else if (sc.atLineEnd) {
+ sc.ChangeState(SCE_AVE_STRINGEOL);
+ sc.ForwardSetState(SCE_AVE_DEFAULT);
+ }
+ }
+
+ // Determine if a new state should be entered.
+ if (sc.state == SCE_AVE_DEFAULT) {
+ if (IsADigit(sc.ch) || (sc.ch == '.' && IsADigit(sc.chNext))) {
+ sc.SetState(SCE_AVE_NUMBER);
+ } else if (IsAWordStart(sc.ch)) {
+ sc.SetState(SCE_AVE_IDENTIFIER);
+ } else if (sc.Match('\"')) {
+ sc.SetState(SCE_AVE_STRING);
+ } else if (sc.Match('\'')) {
+ sc.SetState(SCE_AVE_COMMENT);
+ sc.Forward();
+ } else if (isAveOperator(static_cast<char>(sc.ch))) {
+ sc.SetState(SCE_AVE_OPERATOR);
+ } else if (sc.Match('#')) {
+ sc.SetState(SCE_AVE_ENUM);
+ sc.Forward();
+ }
+ }
+ }
+ sc.Complete();
+}
+
+static void FoldAveDoc(unsigned int startPos, int length, int /* initStyle */, WordList *[],
+ Accessor &styler) {
+ unsigned int lengthDoc = startPos + length;
+ int visibleChars = 0;
+ int lineCurrent = styler.GetLine(startPos);
+ int levelPrev = styler.LevelAt(lineCurrent) & SC_FOLDLEVELNUMBERMASK;
+ int levelCurrent = levelPrev;
+ char chNext = static_cast<char>(tolower(styler[startPos]));
+ bool foldCompact = styler.GetPropertyInt("fold.compact", 1) != 0;
+ int styleNext = styler.StyleAt(startPos);
+ char s[10];
+
+ for (unsigned int i = startPos; i < lengthDoc; i++) {
+ char ch = static_cast<char>(tolower(chNext));
+ chNext = static_cast<char>(tolower(styler.SafeGetCharAt(i + 1)));
+ int style = styleNext;
+ styleNext = styler.StyleAt(i + 1);
+ bool atEOL = (ch == '\r' && chNext != '\n') || (ch == '\n');
+ if (style == SCE_AVE_WORD) {
+ if (ch == 't' || ch == 'f' || ch == 'w' || ch == 'e') {
+ for (unsigned int j = 0; j < 6; j++) {
+ if (!iswordchar(styler[i + j])) {
+ break;
+ }
+ s[j] = static_cast<char>(tolower(styler[i + j]));
+ s[j + 1] = '\0';
+ }
+
+ if ((strcmp(s, "then") == 0) || (strcmp(s, "for") == 0) || (strcmp(s, "while") == 0)) {
+ levelCurrent++;
+ }
+ if ((strcmp(s, "end") == 0) || (strcmp(s, "elseif") == 0)) {
+ // Normally "elseif" and "then" will be on the same line and will cancel
+ // each other out. // As implemented, this does not support fold.at.else.
+ levelCurrent--;
+ }
+ }
+ } else if (style == SCE_AVE_OPERATOR) {
+ if (ch == '{' || ch == '(') {
+ levelCurrent++;
+ } else if (ch == '}' || ch == ')') {
+ levelCurrent--;
+ }
+ }
+
+ 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;
+ }
+ 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);
+}
+
+LexerModule lmAVE(SCLEX_AVE, ColouriseAveDoc, "ave", FoldAveDoc);
+
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