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Diffstat (limited to 'lexers/LexFlagship.cxx')
| -rw-r--r-- | lexers/LexFlagship.cxx | 352 |
1 files changed, 352 insertions, 0 deletions
diff --git a/lexers/LexFlagship.cxx b/lexers/LexFlagship.cxx new file mode 100644 index 000000000..e3a8b9f25 --- /dev/null +++ b/lexers/LexFlagship.cxx @@ -0,0 +1,352 @@ +// 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 <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" +#include "CharacterSet.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(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]; + + // 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 == '{') { + int p = 0; + int chSeek; + unsigned int 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(unsigned int startPos, int length, int, + WordList *[], Accessor &styler) +{ + + int endPos = startPos + length; + + // Backtrack to previous line in case need to fix its fold status + int 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 (int 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); |