chore: bump scintilla and lexilla version
This commit is contained in:
573
3rdparty/lexilla545/lexilla/lexers/LexBasic.cxx
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573
3rdparty/lexilla545/lexilla/lexers/LexBasic.cxx
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// Scintilla source code edit control
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/** @file LexBasic.cxx
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** Lexer for BlitzBasic and PureBasic.
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** Converted to lexer object and added further folding features/properties by "Udo Lechner" <dlchnr(at)gmx(dot)net>
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**/
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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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// This tries to be a unified Lexer/Folder for all the BlitzBasic/BlitzMax/PurBasic basics
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// and derivatives. Once they diverge enough, might want to split it into multiple
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// lexers for more code clearity.
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//
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// Mail me (elias <at> users <dot> sf <dot> net) for any bugs.
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// Folding only works for simple things like functions or types.
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// You may want to have a look at my ctags lexer as well, if you additionally to coloring
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// and folding need to extract things like label tags in your editor.
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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 <map>
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#include <functional>
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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 "StyleContext.h"
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#include "CharacterSet.h"
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#include "LexerModule.h"
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#include "OptionSet.h"
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#include "DefaultLexer.h"
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using namespace Scintilla;
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using namespace Lexilla;
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/* Bits:
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* 1 - whitespace
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* 2 - operator
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* 4 - identifier
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* 8 - decimal digit
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* 16 - hex digit
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* 32 - bin digit
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* 64 - letter
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*/
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static int character_classification[128] =
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{
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0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 0, 0, 1, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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1, 2, 0, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 10, 2,
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60, 60, 28, 28, 28, 28, 28, 28, 28, 28, 2, 2, 2, 2, 2, 2,
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2, 84, 84, 84, 84, 84, 84, 68, 68, 68, 68, 68, 68, 68, 68, 68,
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68, 68, 68, 68, 68, 68, 68, 68, 68, 68, 68, 2, 2, 2, 2, 68,
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2, 84, 84, 84, 84, 84, 84, 68, 68, 68, 68, 68, 68, 68, 68, 68,
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68, 68, 68, 68, 68, 68, 68, 68, 68, 68, 68, 2, 2, 2, 2, 0
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};
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static bool IsSpace(int c) {
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return c < 128 && (character_classification[c] & 1);
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}
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static bool IsOperator(int c) {
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return c < 128 && (character_classification[c] & 2);
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}
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static bool IsIdentifier(int c) {
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return c < 128 && (character_classification[c] & 4);
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}
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static bool IsDigit(int c) {
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return c < 128 && (character_classification[c] & 8);
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}
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static bool IsHexDigit(int c) {
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return c < 128 && (character_classification[c] & 16);
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}
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static bool IsBinDigit(int c) {
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return c < 128 && (character_classification[c] & 32);
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}
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static bool IsLetter(int c) {
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return c < 128 && (character_classification[c] & 64);
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}
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static int LowerCase(int c)
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{
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if (c >= 'A' && c <= 'Z')
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return 'a' + c - 'A';
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return c;
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}
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static int CheckBlitzFoldPoint(char const *token, int &level) {
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if (!strcmp(token, "function") ||
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!strcmp(token, "type")) {
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level |= SC_FOLDLEVELHEADERFLAG;
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return 1;
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}
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if (!strcmp(token, "end function") ||
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!strcmp(token, "end type")) {
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return -1;
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}
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return 0;
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}
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static int CheckPureFoldPoint(char const *token, int &level) {
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if (!strcmp(token, "procedure") ||
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!strcmp(token, "enumeration") ||
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!strcmp(token, "interface") ||
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!strcmp(token, "structure")) {
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level |= SC_FOLDLEVELHEADERFLAG;
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return 1;
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}
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if (!strcmp(token, "endprocedure") ||
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!strcmp(token, "endenumeration") ||
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!strcmp(token, "endinterface") ||
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!strcmp(token, "endstructure")) {
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return -1;
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}
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return 0;
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}
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static int CheckFreeFoldPoint(char const *token, int &level) {
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if (!strcmp(token, "function") ||
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!strcmp(token, "sub") ||
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!strcmp(token, "enum") ||
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!strcmp(token, "type") ||
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!strcmp(token, "union") ||
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!strcmp(token, "property") ||
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!strcmp(token, "destructor") ||
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!strcmp(token, "constructor")) {
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level |= SC_FOLDLEVELHEADERFLAG;
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return 1;
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}
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if (!strcmp(token, "end function") ||
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!strcmp(token, "end sub") ||
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!strcmp(token, "end enum") ||
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!strcmp(token, "end type") ||
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!strcmp(token, "end union") ||
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!strcmp(token, "end property") ||
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!strcmp(token, "end destructor") ||
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!strcmp(token, "end constructor")) {
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return -1;
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}
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return 0;
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}
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// An individual named option for use in an OptionSet
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// Options used for LexerBasic
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struct OptionsBasic {
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bool fold;
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bool foldSyntaxBased;
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bool foldCommentExplicit;
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std::string foldExplicitStart;
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std::string foldExplicitEnd;
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bool foldExplicitAnywhere;
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bool foldCompact;
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OptionsBasic() {
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fold = false;
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foldSyntaxBased = true;
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foldCommentExplicit = false;
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foldExplicitStart = "";
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foldExplicitEnd = "";
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foldExplicitAnywhere = false;
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foldCompact = true;
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}
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};
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static const char * const blitzbasicWordListDesc[] = {
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"BlitzBasic Keywords",
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"user1",
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"user2",
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"user3",
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0
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};
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static const char * const purebasicWordListDesc[] = {
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"PureBasic Keywords",
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"PureBasic PreProcessor Keywords",
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"user defined 1",
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"user defined 2",
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0
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};
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static const char * const freebasicWordListDesc[] = {
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"FreeBasic Keywords",
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"FreeBasic PreProcessor Keywords",
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"user defined 1",
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"user defined 2",
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0
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};
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struct OptionSetBasic : public OptionSet<OptionsBasic> {
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OptionSetBasic(const char * const wordListDescriptions[]) {
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DefineProperty("fold", &OptionsBasic::fold);
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DefineProperty("fold.basic.syntax.based", &OptionsBasic::foldSyntaxBased,
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"Set this property to 0 to disable syntax based folding.");
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DefineProperty("fold.basic.comment.explicit", &OptionsBasic::foldCommentExplicit,
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"This option enables folding explicit fold points when using the Basic lexer. "
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"Explicit fold points allows adding extra folding by placing a ;{ (BB/PB) or '{ (FB) comment at the start "
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"and a ;} (BB/PB) or '} (FB) at the end of a section that should be folded.");
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DefineProperty("fold.basic.explicit.start", &OptionsBasic::foldExplicitStart,
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"The string to use for explicit fold start points, replacing the standard ;{ (BB/PB) or '{ (FB).");
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DefineProperty("fold.basic.explicit.end", &OptionsBasic::foldExplicitEnd,
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"The string to use for explicit fold end points, replacing the standard ;} (BB/PB) or '} (FB).");
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DefineProperty("fold.basic.explicit.anywhere", &OptionsBasic::foldExplicitAnywhere,
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"Set this property to 1 to enable explicit fold points anywhere, not just in line comments.");
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DefineProperty("fold.compact", &OptionsBasic::foldCompact);
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DefineWordListSets(wordListDescriptions);
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}
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};
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class LexerBasic : public DefaultLexer {
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char comment_char;
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int (*CheckFoldPoint)(char const *, int &);
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WordList keywordlists[4];
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OptionsBasic options;
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OptionSetBasic osBasic;
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public:
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LexerBasic(const char *languageName_, int language_, char comment_char_,
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int (*CheckFoldPoint_)(char const *, int &), const char * const wordListDescriptions[]) :
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DefaultLexer(languageName_, language_),
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comment_char(comment_char_),
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CheckFoldPoint(CheckFoldPoint_),
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osBasic(wordListDescriptions) {
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}
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virtual ~LexerBasic() {
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}
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void SCI_METHOD Release() override {
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delete this;
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}
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int SCI_METHOD Version() const override {
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return lvRelease5;
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}
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const char * SCI_METHOD PropertyNames() override {
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return osBasic.PropertyNames();
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}
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int SCI_METHOD PropertyType(const char *name) override {
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return osBasic.PropertyType(name);
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}
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const char * SCI_METHOD DescribeProperty(const char *name) override {
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return osBasic.DescribeProperty(name);
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}
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Sci_Position SCI_METHOD PropertySet(const char *key, const char *val) override;
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const char * SCI_METHOD PropertyGet(const char *key) override {
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return osBasic.PropertyGet(key);
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}
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const char * SCI_METHOD DescribeWordListSets() override {
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return osBasic.DescribeWordListSets();
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}
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Sci_Position SCI_METHOD WordListSet(int n, const char *wl) override;
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void SCI_METHOD Lex(Sci_PositionU startPos, Sci_Position length, int initStyle, IDocument *pAccess) override;
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void SCI_METHOD Fold(Sci_PositionU startPos, Sci_Position length, int initStyle, IDocument *pAccess) override;
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void * SCI_METHOD PrivateCall(int, void *) override {
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return 0;
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}
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static ILexer5 *LexerFactoryBlitzBasic() {
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return new LexerBasic("blitzbasic", SCLEX_BLITZBASIC, ';', CheckBlitzFoldPoint, blitzbasicWordListDesc);
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}
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static ILexer5 *LexerFactoryPureBasic() {
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return new LexerBasic("purebasic", SCLEX_PUREBASIC, ';', CheckPureFoldPoint, purebasicWordListDesc);
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}
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static ILexer5 *LexerFactoryFreeBasic() {
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return new LexerBasic("freebasic", SCLEX_FREEBASIC, '\'', CheckFreeFoldPoint, freebasicWordListDesc );
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}
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};
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Sci_Position SCI_METHOD LexerBasic::PropertySet(const char *key, const char *val) {
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if (osBasic.PropertySet(&options, key, val)) {
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return 0;
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}
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return -1;
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}
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Sci_Position SCI_METHOD LexerBasic::WordListSet(int n, const char *wl) {
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WordList *wordListN = 0;
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switch (n) {
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case 0:
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wordListN = &keywordlists[0];
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break;
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case 1:
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wordListN = &keywordlists[1];
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break;
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case 2:
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wordListN = &keywordlists[2];
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break;
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case 3:
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wordListN = &keywordlists[3];
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break;
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}
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Sci_Position firstModification = -1;
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if (wordListN) {
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WordList wlNew;
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wlNew.Set(wl);
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if (*wordListN != wlNew) {
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wordListN->Set(wl);
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firstModification = 0;
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}
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}
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return firstModification;
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}
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void SCI_METHOD LexerBasic::Lex(Sci_PositionU startPos, Sci_Position length, int initStyle, IDocument *pAccess) {
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LexAccessor styler(pAccess);
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bool wasfirst = true, isfirst = true; // true if first token in a line
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styler.StartAt(startPos);
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int styleBeforeKeyword = SCE_B_DEFAULT;
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StyleContext sc(startPos, length, initStyle, styler);
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// Can't use sc.More() here else we miss the last character
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for (; ; sc.Forward()) {
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if (sc.state == SCE_B_IDENTIFIER) {
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if (!IsIdentifier(sc.ch)) {
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// Labels
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if (wasfirst && sc.Match(':')) {
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sc.ChangeState(SCE_B_LABEL);
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sc.ForwardSetState(SCE_B_DEFAULT);
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} else {
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char s[100];
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int kstates[4] = {
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SCE_B_KEYWORD,
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SCE_B_KEYWORD2,
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SCE_B_KEYWORD3,
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SCE_B_KEYWORD4,
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};
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sc.GetCurrentLowered(s, sizeof(s));
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for (int i = 0; i < 4; i++) {
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if (keywordlists[i].InList(s)) {
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sc.ChangeState(kstates[i]);
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}
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}
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// Types, must set them as operator else they will be
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// matched as number/constant
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if (sc.Match('.') || sc.Match('$') || sc.Match('%') ||
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sc.Match('#')) {
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sc.SetState(SCE_B_OPERATOR);
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} else {
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sc.SetState(SCE_B_DEFAULT);
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}
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}
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}
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} else if (sc.state == SCE_B_OPERATOR) {
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if (!IsOperator(sc.ch) || sc.Match('#'))
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sc.SetState(SCE_B_DEFAULT);
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} else if (sc.state == SCE_B_LABEL) {
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if (!IsIdentifier(sc.ch))
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sc.SetState(SCE_B_DEFAULT);
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} else if (sc.state == SCE_B_CONSTANT) {
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if (!IsIdentifier(sc.ch))
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sc.SetState(SCE_B_DEFAULT);
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} else if (sc.state == SCE_B_NUMBER) {
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if (!IsDigit(sc.ch))
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sc.SetState(SCE_B_DEFAULT);
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} else if (sc.state == SCE_B_HEXNUMBER) {
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if (!IsHexDigit(sc.ch))
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sc.SetState(SCE_B_DEFAULT);
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} else if (sc.state == SCE_B_BINNUMBER) {
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if (!IsBinDigit(sc.ch))
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sc.SetState(SCE_B_DEFAULT);
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} else if (sc.state == SCE_B_STRING) {
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if (sc.ch == '"') {
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sc.ForwardSetState(SCE_B_DEFAULT);
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}
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if (sc.atLineEnd) {
|
||||
sc.ChangeState(SCE_B_ERROR);
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||||
sc.SetState(SCE_B_DEFAULT);
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||||
}
|
||||
} else if (sc.state == SCE_B_COMMENT || sc.state == SCE_B_PREPROCESSOR) {
|
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if (sc.atLineEnd) {
|
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sc.SetState(SCE_B_DEFAULT);
|
||||
}
|
||||
} else if (sc.state == SCE_B_DOCLINE) {
|
||||
if (sc.atLineEnd) {
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||||
sc.SetState(SCE_B_DEFAULT);
|
||||
} else if (sc.ch == '\\' || sc.ch == '@') {
|
||||
if (IsLetter(sc.chNext) && sc.chPrev != '\\') {
|
||||
styleBeforeKeyword = sc.state;
|
||||
sc.SetState(SCE_B_DOCKEYWORD);
|
||||
};
|
||||
}
|
||||
} else if (sc.state == SCE_B_DOCKEYWORD) {
|
||||
if (IsSpace(sc.ch)) {
|
||||
sc.SetState(styleBeforeKeyword);
|
||||
} else if (sc.atLineEnd && styleBeforeKeyword == SCE_B_DOCLINE) {
|
||||
sc.SetState(SCE_B_DEFAULT);
|
||||
}
|
||||
} else if (sc.state == SCE_B_COMMENTBLOCK) {
|
||||
if (sc.Match("\'/")) {
|
||||
sc.Forward();
|
||||
sc.ForwardSetState(SCE_B_DEFAULT);
|
||||
}
|
||||
} else if (sc.state == SCE_B_DOCBLOCK) {
|
||||
if (sc.Match("\'/")) {
|
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sc.Forward();
|
||||
sc.ForwardSetState(SCE_B_DEFAULT);
|
||||
} else if (sc.ch == '\\' || sc.ch == '@') {
|
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if (IsLetter(sc.chNext) && sc.chPrev != '\\') {
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styleBeforeKeyword = sc.state;
|
||||
sc.SetState(SCE_B_DOCKEYWORD);
|
||||
};
|
||||
}
|
||||
}
|
||||
|
||||
if (sc.atLineStart)
|
||||
isfirst = true;
|
||||
|
||||
if (sc.state == SCE_B_DEFAULT || sc.state == SCE_B_ERROR) {
|
||||
if (isfirst && sc.Match('.') && comment_char != '\'') {
|
||||
sc.SetState(SCE_B_LABEL);
|
||||
} else if (isfirst && sc.Match('#')) {
|
||||
wasfirst = isfirst;
|
||||
sc.SetState(SCE_B_IDENTIFIER);
|
||||
} else if (sc.Match(comment_char)) {
|
||||
// Hack to make deprecated QBASIC '$Include show
|
||||
// up in freebasic with SCE_B_PREPROCESSOR.
|
||||
if (comment_char == '\'' && sc.Match(comment_char, '$'))
|
||||
sc.SetState(SCE_B_PREPROCESSOR);
|
||||
else if (sc.Match("\'*") || sc.Match("\'!")) {
|
||||
sc.SetState(SCE_B_DOCLINE);
|
||||
} else {
|
||||
sc.SetState(SCE_B_COMMENT);
|
||||
}
|
||||
} else if (sc.Match("/\'")) {
|
||||
if (sc.Match("/\'*") || sc.Match("/\'!")) { // Support of gtk-doc/Doxygen doc. style
|
||||
sc.SetState(SCE_B_DOCBLOCK);
|
||||
} else {
|
||||
sc.SetState(SCE_B_COMMENTBLOCK);
|
||||
}
|
||||
sc.Forward(); // Eat the ' so it isn't used for the end of the comment
|
||||
} else if (sc.Match('"')) {
|
||||
sc.SetState(SCE_B_STRING);
|
||||
} else if (IsDigit(sc.ch)) {
|
||||
sc.SetState(SCE_B_NUMBER);
|
||||
} else if (sc.Match('$') || sc.Match("&h") || sc.Match("&H") || sc.Match("&o") || sc.Match("&O")) {
|
||||
sc.SetState(SCE_B_HEXNUMBER);
|
||||
} else if (sc.Match('%') || sc.Match("&b") || sc.Match("&B")) {
|
||||
sc.SetState(SCE_B_BINNUMBER);
|
||||
} else if (sc.Match('#')) {
|
||||
sc.SetState(SCE_B_CONSTANT);
|
||||
} else if (IsOperator(sc.ch)) {
|
||||
sc.SetState(SCE_B_OPERATOR);
|
||||
} else if (IsIdentifier(sc.ch)) {
|
||||
wasfirst = isfirst;
|
||||
sc.SetState(SCE_B_IDENTIFIER);
|
||||
} else if (!IsSpace(sc.ch)) {
|
||||
sc.SetState(SCE_B_ERROR);
|
||||
}
|
||||
}
|
||||
|
||||
if (!IsSpace(sc.ch))
|
||||
isfirst = false;
|
||||
|
||||
if (!sc.More())
|
||||
break;
|
||||
}
|
||||
sc.Complete();
|
||||
}
|
||||
|
||||
|
||||
void SCI_METHOD LexerBasic::Fold(Sci_PositionU startPos, Sci_Position length, int /* initStyle */, IDocument *pAccess) {
|
||||
|
||||
if (!options.fold)
|
||||
return;
|
||||
|
||||
LexAccessor styler(pAccess);
|
||||
|
||||
Sci_Position line = styler.GetLine(startPos);
|
||||
int level = styler.LevelAt(line);
|
||||
int go = 0, done = 0;
|
||||
Sci_Position endPos = startPos + length;
|
||||
char word[256];
|
||||
int wordlen = 0;
|
||||
const bool userDefinedFoldMarkers = !options.foldExplicitStart.empty() && !options.foldExplicitEnd.empty();
|
||||
int cNext = styler[startPos];
|
||||
|
||||
// Scan for tokens at the start of the line (they may include
|
||||
// whitespace, for tokens like "End Function"
|
||||
for (Sci_Position i = startPos; i < endPos; i++) {
|
||||
int c = cNext;
|
||||
cNext = styler.SafeGetCharAt(i + 1);
|
||||
bool atEOL = (c == '\r' && cNext != '\n') || (c == '\n');
|
||||
if (options.foldSyntaxBased && !done && !go) {
|
||||
if (wordlen) { // are we scanning a token already?
|
||||
word[wordlen] = static_cast<char>(LowerCase(c));
|
||||
if (!IsIdentifier(c)) { // done with token
|
||||
word[wordlen] = '\0';
|
||||
go = CheckFoldPoint(word, level);
|
||||
if (!go) {
|
||||
// Treat any whitespace as single blank, for
|
||||
// things like "End Function".
|
||||
if (IsSpace(c) && IsIdentifier(word[wordlen - 1])) {
|
||||
word[wordlen] = ' ';
|
||||
if (wordlen < 255)
|
||||
wordlen++;
|
||||
}
|
||||
else // done with this line
|
||||
done = 1;
|
||||
}
|
||||
} else if (wordlen < 255) {
|
||||
wordlen++;
|
||||
}
|
||||
} else { // start scanning at first non-whitespace character
|
||||
if (!IsSpace(c)) {
|
||||
if (IsIdentifier(c)) {
|
||||
word[0] = static_cast<char>(LowerCase(c));
|
||||
wordlen = 1;
|
||||
} else // done with this line
|
||||
done = 1;
|
||||
}
|
||||
}
|
||||
}
|
||||
if (options.foldCommentExplicit && ((styler.StyleAt(i) == SCE_B_COMMENT) || options.foldExplicitAnywhere)) {
|
||||
if (userDefinedFoldMarkers) {
|
||||
if (styler.Match(i, options.foldExplicitStart.c_str())) {
|
||||
level |= SC_FOLDLEVELHEADERFLAG;
|
||||
go = 1;
|
||||
} else if (styler.Match(i, options.foldExplicitEnd.c_str())) {
|
||||
go = -1;
|
||||
}
|
||||
} else {
|
||||
if (c == comment_char) {
|
||||
if (cNext == '{') {
|
||||
level |= SC_FOLDLEVELHEADERFLAG;
|
||||
go = 1;
|
||||
} else if (cNext == '}') {
|
||||
go = -1;
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
if (atEOL) { // line end
|
||||
if (!done && wordlen == 0 && options.foldCompact) // line was only space
|
||||
level |= SC_FOLDLEVELWHITEFLAG;
|
||||
if (level != styler.LevelAt(line))
|
||||
styler.SetLevel(line, level);
|
||||
level += go;
|
||||
line++;
|
||||
// reset state
|
||||
wordlen = 0;
|
||||
level &= ~SC_FOLDLEVELHEADERFLAG;
|
||||
level &= ~SC_FOLDLEVELWHITEFLAG;
|
||||
go = 0;
|
||||
done = 0;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
extern const LexerModule lmBlitzBasic(SCLEX_BLITZBASIC, LexerBasic::LexerFactoryBlitzBasic, "blitzbasic", blitzbasicWordListDesc);
|
||||
|
||||
extern const LexerModule lmPureBasic(SCLEX_PUREBASIC, LexerBasic::LexerFactoryPureBasic, "purebasic", purebasicWordListDesc);
|
||||
|
||||
extern const LexerModule lmFreeBasic(SCLEX_FREEBASIC, LexerBasic::LexerFactoryFreeBasic, "freebasic", freebasicWordListDesc);
|
||||
Reference in New Issue
Block a user