/ext/scintilla/lexers/LexFlagship.cxx
C++ | 354 lines | 315 code | 21 blank | 18 comment | 187 complexity | 961a542a7f6731bd173d50fd0eed3f06 MD5 | raw file
- // Scintilla source code edit control
- /** @file LexFlagShip.cxx
- ** Lexer for Harbour and FlagShip.
- ** (Syntactically compatible to other xBase dialects, like Clipper, dBase, Clip, FoxPro etc.)
- **/
- // Copyright 2005 by Randy Butler
- // Copyright 2010 by Xavi <jarabal/at/gmail.com> (Harbour)
- // Copyright 1998-2003 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 <stdio.h>
- #include <stdarg.h>
- #include <assert.h>
- #include <ctype.h>
-
- #include "ILexer.h"
- #include "Scintilla.h"
- #include "SciLexer.h"
-
- #include "WordList.h"
- #include "LexAccessor.h"
- #include "Accessor.h"
- #include "StyleContext.h"
- #include "CharacterSet.h"
- #include "LexerModule.h"
-
- #ifdef SCI_NAMESPACE
- using namespace Scintilla;
- #endif
-
- // Extended to accept accented characters
- static inline bool IsAWordChar(int ch)
- {
- return ch >= 0x80 ||
- (isalnum(ch) || ch == '_');
- }
-
- static void ColouriseFlagShipDoc(Sci_PositionU startPos, Sci_Position 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];
-
- // property lexer.flagship.styling.within.preprocessor
- // For Harbour code, determines whether all preprocessor code is styled in the preprocessor style (0) or only from the
- // initial # to the end of the command word(1, the default). It also determines how to present text, dump, and disabled code.
- bool stylingWithinPreprocessor = styler.GetPropertyInt("lexer.flagship.styling.within.preprocessor", 1) != 0;
-
- CharacterSet setDoxygen(CharacterSet::setAlpha, "$@\\&<>#{}[]");
-
- int visibleChars = 0;
- int closeStringChar = 0;
- int styleBeforeDCKeyword = SCE_FS_DEFAULT;
- bool bEnableCode = initStyle < SCE_FS_DISABLEDCODE;
-
- StyleContext sc(startPos, length, initStyle, styler);
-
- for (; sc.More(); sc.Forward()) {
-
- // Determine if the current state should terminate.
- switch (sc.state) {
- case SCE_FS_OPERATOR:
- case SCE_FS_OPERATOR_C:
- case SCE_FS_WORDOPERATOR:
- sc.SetState(bEnableCode ? SCE_FS_DEFAULT : SCE_FS_DEFAULT_C);
- break;
- case SCE_FS_IDENTIFIER:
- case SCE_FS_IDENTIFIER_C:
- if (!IsAWordChar(sc.ch)) {
- char s[64];
- sc.GetCurrentLowered(s, sizeof(s));
- if (keywords.InList(s)) {
- sc.ChangeState(bEnableCode ? SCE_FS_KEYWORD : SCE_FS_KEYWORD_C);
- } else if (keywords2.InList(s)) {
- sc.ChangeState(bEnableCode ? SCE_FS_KEYWORD2 : SCE_FS_KEYWORD2_C);
- } else if (bEnableCode && keywords3.InList(s)) {
- sc.ChangeState(SCE_FS_KEYWORD3);
- } else if (bEnableCode && keywords4.InList(s)) {
- sc.ChangeState(SCE_FS_KEYWORD4);
- }// Else, it is really an identifier...
- sc.SetState(bEnableCode ? SCE_FS_DEFAULT : SCE_FS_DEFAULT_C);
- }
- break;
- case SCE_FS_NUMBER:
- if (!IsAWordChar(sc.ch) && !(sc.ch == '.' && IsADigit(sc.chNext))) {
- sc.SetState(SCE_FS_DEFAULT);
- }
- break;
- case SCE_FS_NUMBER_C:
- if (!IsAWordChar(sc.ch) && sc.ch != '.') {
- sc.SetState(SCE_FS_DEFAULT_C);
- }
- break;
- case SCE_FS_CONSTANT:
- if (!IsAWordChar(sc.ch)) {
- sc.SetState(SCE_FS_DEFAULT);
- }
- break;
- case SCE_FS_STRING:
- case SCE_FS_STRING_C:
- if (sc.ch == closeStringChar) {
- sc.ForwardSetState(bEnableCode ? SCE_FS_DEFAULT : SCE_FS_DEFAULT_C);
- } else if (sc.atLineEnd) {
- sc.ChangeState(bEnableCode ? SCE_FS_STRINGEOL : SCE_FS_STRINGEOL_C);
- }
- break;
- case SCE_FS_STRINGEOL:
- case SCE_FS_STRINGEOL_C:
- if (sc.atLineStart) {
- sc.SetState(bEnableCode ? SCE_FS_DEFAULT : SCE_FS_DEFAULT_C);
- }
- break;
- case SCE_FS_COMMENTDOC:
- case SCE_FS_COMMENTDOC_C:
- if (sc.Match('*', '/')) {
- sc.Forward();
- sc.ForwardSetState(bEnableCode ? SCE_FS_DEFAULT : SCE_FS_DEFAULT_C);
- } else if (sc.ch == '@' || sc.ch == '\\') { // JavaDoc and Doxygen support
- // Verify that we have the conditions to mark a comment-doc-keyword
- if ((IsASpace(sc.chPrev) || sc.chPrev == '*') && (!IsASpace(sc.chNext))) {
- styleBeforeDCKeyword = bEnableCode ? SCE_FS_COMMENTDOC : SCE_FS_COMMENTDOC_C;
- sc.SetState(SCE_FS_COMMENTDOCKEYWORD);
- }
- }
- break;
- case SCE_FS_COMMENT:
- case SCE_FS_COMMENTLINE:
- if (sc.atLineStart) {
- sc.SetState(SCE_FS_DEFAULT);
- }
- break;
- case SCE_FS_COMMENTLINEDOC:
- case SCE_FS_COMMENTLINEDOC_C:
- if (sc.atLineStart) {
- sc.SetState(bEnableCode ? SCE_FS_DEFAULT : SCE_FS_DEFAULT_C);
- } else if (sc.ch == '@' || sc.ch == '\\') { // JavaDoc and Doxygen support
- // Verify that we have the conditions to mark a comment-doc-keyword
- if ((IsASpace(sc.chPrev) || sc.chPrev == '/' || sc.chPrev == '!') && (!IsASpace(sc.chNext))) {
- styleBeforeDCKeyword = bEnableCode ? SCE_FS_COMMENTLINEDOC : SCE_FS_COMMENTLINEDOC_C;
- sc.SetState(SCE_FS_COMMENTDOCKEYWORD);
- }
- }
- break;
- case SCE_FS_COMMENTDOCKEYWORD:
- if ((styleBeforeDCKeyword == SCE_FS_COMMENTDOC || styleBeforeDCKeyword == SCE_FS_COMMENTDOC_C) &&
- sc.Match('*', '/')) {
- sc.ChangeState(SCE_FS_COMMENTDOCKEYWORDERROR);
- sc.Forward();
- sc.ForwardSetState(bEnableCode ? SCE_FS_DEFAULT : SCE_FS_DEFAULT_C);
- } else if (!setDoxygen.Contains(sc.ch)) {
- char s[64];
- sc.GetCurrentLowered(s, sizeof(s));
- if (!IsASpace(sc.ch) || !keywords5.InList(s + 1)) {
- sc.ChangeState(SCE_FS_COMMENTDOCKEYWORDERROR);
- }
- sc.SetState(styleBeforeDCKeyword);
- }
- break;
- case SCE_FS_PREPROCESSOR:
- case SCE_FS_PREPROCESSOR_C:
- if (sc.atLineEnd) {
- if (!(sc.chPrev == ';' || sc.GetRelative(-2) == ';')) {
- sc.SetState(bEnableCode ? SCE_FS_DEFAULT : SCE_FS_DEFAULT_C);
- }
- } else if (stylingWithinPreprocessor) {
- if (IsASpaceOrTab(sc.ch)) {
- sc.SetState(bEnableCode ? SCE_FS_DEFAULT : SCE_FS_DEFAULT_C);
- }
- } else if (sc.Match('/', '*') || sc.Match('/', '/') || sc.Match('&', '&')) {
- sc.SetState(bEnableCode ? SCE_FS_DEFAULT : SCE_FS_DEFAULT_C);
- }
- break;
- case SCE_FS_DISABLEDCODE:
- if (sc.ch == '#' && visibleChars == 0) {
- sc.SetState(bEnableCode ? SCE_FS_PREPROCESSOR : SCE_FS_PREPROCESSOR_C);
- do { // Skip whitespace between # and preprocessor word
- sc.Forward();
- } while (IsASpaceOrTab(sc.ch) && sc.More());
- if (sc.MatchIgnoreCase("pragma")) {
- sc.Forward(6);
- do { // Skip more whitespace until keyword
- sc.Forward();
- } while (IsASpaceOrTab(sc.ch) && sc.More());
- if (sc.MatchIgnoreCase("enddump") || sc.MatchIgnoreCase("__endtext")) {
- bEnableCode = true;
- sc.SetState(SCE_FS_DISABLEDCODE);
- sc.Forward(sc.ch == '_' ? 8 : 6);
- sc.ForwardSetState(SCE_FS_DEFAULT);
- } else {
- sc.ChangeState(SCE_FS_DISABLEDCODE);
- }
- } else {
- sc.ChangeState(SCE_FS_DISABLEDCODE);
- }
- }
- break;
- case SCE_FS_DATE:
- if (sc.ch == '}') {
- sc.ForwardSetState(SCE_FS_DEFAULT);
- } else if (sc.atLineEnd) {
- sc.ChangeState(SCE_FS_STRINGEOL);
- }
- }
-
- // Determine if a new state should be entered.
- if (sc.state == SCE_FS_DEFAULT || sc.state == SCE_FS_DEFAULT_C) {
- if (bEnableCode &&
- (sc.MatchIgnoreCase(".and.") || sc.MatchIgnoreCase(".not."))) {
- sc.SetState(SCE_FS_WORDOPERATOR);
- sc.Forward(4);
- } else if (bEnableCode && sc.MatchIgnoreCase(".or.")) {
- sc.SetState(SCE_FS_WORDOPERATOR);
- sc.Forward(3);
- } else if (bEnableCode &&
- (sc.MatchIgnoreCase(".t.") || sc.MatchIgnoreCase(".f.") ||
- (!IsAWordChar(sc.GetRelative(3)) && sc.MatchIgnoreCase("nil")))) {
- sc.SetState(SCE_FS_CONSTANT);
- sc.Forward(2);
- } else if (sc.Match('/', '*')) {
- sc.SetState(bEnableCode ? SCE_FS_COMMENTDOC : SCE_FS_COMMENTDOC_C);
- sc.Forward();
- } else if (bEnableCode && sc.Match('&', '&')) {
- sc.SetState(SCE_FS_COMMENTLINE);
- sc.Forward();
- } else if (sc.Match('/', '/')) {
- sc.SetState(bEnableCode ? SCE_FS_COMMENTLINEDOC : SCE_FS_COMMENTLINEDOC_C);
- sc.Forward();
- } else if (bEnableCode && sc.ch == '*' && visibleChars == 0) {
- sc.SetState(SCE_FS_COMMENT);
- } else if (sc.ch == '\"' || sc.ch == '\'') {
- sc.SetState(bEnableCode ? SCE_FS_STRING : SCE_FS_STRING_C);
- closeStringChar = sc.ch;
- } else if (closeStringChar == '>' && sc.ch == '<') {
- sc.SetState(bEnableCode ? SCE_FS_STRING : SCE_FS_STRING_C);
- } else if (sc.ch == '#' && visibleChars == 0) {
- sc.SetState(bEnableCode ? SCE_FS_PREPROCESSOR : SCE_FS_PREPROCESSOR_C);
- do { // Skip whitespace between # and preprocessor word
- sc.Forward();
- } while (IsASpaceOrTab(sc.ch) && sc.More());
- if (sc.atLineEnd) {
- sc.SetState(bEnableCode ? SCE_FS_DEFAULT : SCE_FS_DEFAULT_C);
- } else if (sc.MatchIgnoreCase("include")) {
- if (stylingWithinPreprocessor) {
- closeStringChar = '>';
- }
- } else if (sc.MatchIgnoreCase("pragma")) {
- sc.Forward(6);
- do { // Skip more whitespace until keyword
- sc.Forward();
- } while (IsASpaceOrTab(sc.ch) && sc.More());
- if (sc.MatchIgnoreCase("begindump") || sc.MatchIgnoreCase("__cstream")) {
- bEnableCode = false;
- if (stylingWithinPreprocessor) {
- sc.SetState(SCE_FS_DISABLEDCODE);
- sc.Forward(8);
- sc.ForwardSetState(SCE_FS_DEFAULT_C);
- } else {
- sc.SetState(SCE_FS_DISABLEDCODE);
- }
- } else if (sc.MatchIgnoreCase("enddump") || sc.MatchIgnoreCase("__endtext")) {
- bEnableCode = true;
- sc.SetState(SCE_FS_DISABLEDCODE);
- sc.Forward(sc.ch == '_' ? 8 : 6);
- sc.ForwardSetState(SCE_FS_DEFAULT);
- }
- }
- } else if (bEnableCode && sc.ch == '{') {
- Sci_Position p = 0;
- int chSeek;
- Sci_PositionU endPos(startPos + length);
- do { // Skip whitespace
- chSeek = sc.GetRelative(++p);
- } while (IsASpaceOrTab(chSeek) && (sc.currentPos + p < endPos));
- if (chSeek == '^') {
- sc.SetState(SCE_FS_DATE);
- } else {
- sc.SetState(SCE_FS_OPERATOR);
- }
- } else if (IsADigit(sc.ch) || (sc.ch == '.' && IsADigit(sc.chNext))) {
- sc.SetState(bEnableCode ? SCE_FS_NUMBER : SCE_FS_NUMBER_C);
- } else if (IsAWordChar(sc.ch)) {
- sc.SetState(bEnableCode ? SCE_FS_IDENTIFIER : SCE_FS_IDENTIFIER_C);
- } else if (isoperator(static_cast<char>(sc.ch)) || (bEnableCode && sc.ch == '@')) {
- sc.SetState(bEnableCode ? SCE_FS_OPERATOR : SCE_FS_OPERATOR_C);
- }
- }
-
- if (sc.atLineEnd) {
- visibleChars = 0;
- closeStringChar = 0;
- }
- if (!IsASpace(sc.ch)) {
- visibleChars++;
- }
- }
- sc.Complete();
- }
-
- static void FoldFlagShipDoc(Sci_PositionU startPos, Sci_Position length, int,
- WordList *[], Accessor &styler)
- {
-
- Sci_Position endPos = startPos + length;
-
- // Backtrack to previous line in case need to fix its fold status
- Sci_Position lineCurrent = styler.GetLine(startPos);
- if (startPos > 0 && lineCurrent > 0) {
- lineCurrent--;
- startPos = styler.LineStart(lineCurrent);
- }
- int spaceFlags = 0;
- int indentCurrent = styler.IndentAmount(lineCurrent, &spaceFlags);
- char chNext = styler[startPos];
- for (Sci_Position i = startPos; i < endPos; i++) {
- char ch = chNext;
- chNext = styler.SafeGetCharAt(i + 1);
-
- if ((ch == '\r' && chNext != '\n') || (ch == '\n') || (i == endPos-1)) {
- int lev = indentCurrent;
- int indentNext = styler.IndentAmount(lineCurrent + 1, &spaceFlags);
- if (!(indentCurrent & SC_FOLDLEVELWHITEFLAG)) {
- if ((indentCurrent & SC_FOLDLEVELNUMBERMASK) < (indentNext & SC_FOLDLEVELNUMBERMASK)) {
- lev |= SC_FOLDLEVELHEADERFLAG;
- } else if (indentNext & SC_FOLDLEVELWHITEFLAG) {
- int spaceFlags2 = 0;
- int indentNext2 = styler.IndentAmount(lineCurrent + 2, &spaceFlags2);
- if ((indentCurrent & SC_FOLDLEVELNUMBERMASK) < (indentNext2 & SC_FOLDLEVELNUMBERMASK)) {
- lev |= SC_FOLDLEVELHEADERFLAG;
- }
- }
- }
- indentCurrent = indentNext;
- styler.SetLevel(lineCurrent, lev);
- lineCurrent++;
- }
- }
- }
-
- static const char * const FSWordListDesc[] = {
- "Keywords Commands",
- "Std Library Functions",
- "Procedure, return, exit",
- "Class (oop)",
- "Doxygen keywords",
- 0
- };
-
- LexerModule lmFlagShip(SCLEX_FLAGSHIP, ColouriseFlagShipDoc, "flagship", FoldFlagShipDoc, FSWordListDesc);