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