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213e9135ba
Release 5.5.3 (https://www.scintilla.org/scintilla553.zip) Released 19 October 2024. On Win32 change direction of horizontal mouse wheel and touchpad scrolling to match other applications. Bug #2449. Release 5.4.1 (https://www.scintilla.org/lexilla541.zip) Released 19 October 2024. Lexer added for Dart "dart". Pull request #265, Pull request #275. Lexer added for troff / nroff "troff". Pull request #264. Lexer added for Zig "zig". Pull request #267. C++: Fix crash for empty documentation comment keyword where '<' occurs at line end. F#: Include EOLs in the style range of SCE_FSHARP_COMMENTLINE. Stabilizes EOL detection when folding line comment groups. Issue #276. F#: Fix per-line folding in F# documents. Issue #277. HTML: Improve SGML/DTD lexing. Don't terminate SGML when > inside quoted string. Lex both [ and ] as SCE_H_SGML_DEFAULT. Nested sections handled instead of switching to SCE_H_SGML_ERROR. Issue #272. JavaScript: New SCE_HJ_TEMPLATELITERAL and SCE_HJA_TEMPLATELITERAL styles for template literals when lexer is hypertext, or xml. Issue #280. PHP: Fix failure to recognize PHP start "<?php' at end of document. Caused by not capping retrieval range at document end causing no text to be retrieved. Issue #269. Smalltalk: Fix scaled decimal numbers without decimal separator. Pull request #274. Fix #15228, fix #15368, fix #15650, close #15717
105 lines
3.0 KiB
C++
105 lines
3.0 KiB
C++
// Scintilla source code edit control
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/** @file StyleContext.cxx
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** Lexer infrastructure.
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**/
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// Copyright 1998-2004 by Neil Hodgson <neilh@scintilla.org>
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// This file is in the public domain.
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#include <cstdlib>
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#include <cstdint>
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#include <cassert>
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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 "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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using namespace Lexilla;
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StyleContext::StyleContext(Sci_PositionU startPos, Sci_PositionU length,
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int initStyle, LexAccessor &styler_, char chMask) :
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styler(styler_),
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multiByteAccess((styler.Encoding() == EncodingType::eightBit) ? nullptr : styler.MultiByteAccess()),
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lengthDocument(static_cast<Sci_PositionU>(styler.Length())),
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endPos(((startPos + length) < lengthDocument) ? (startPos + length) : (lengthDocument+1)),
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lineDocEnd(styler.GetLine(lengthDocument)),
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currentPosLastRelative(SIZE_MAX),
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currentPos(startPos),
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currentLine(styler.GetLine(startPos)),
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lineEnd(styler.LineEnd(currentLine)),
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lineStartNext(styler.LineStart(currentLine + 1)),
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atLineStart(static_cast<Sci_PositionU>(styler.LineStart(currentLine)) == startPos),
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// Mask off all bits which aren't in the chMask.
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state(initStyle &chMask) {
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styler.StartAt(startPos /*, chMask*/);
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styler.StartSegment(startPos);
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chPrev = GetRelativeCharacter(-1);
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// Variable width is now 0 so GetNextChar gets the char at currentPos into chNext/widthNext
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GetNextChar();
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ch = chNext;
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width = widthNext;
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GetNextChar();
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}
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bool StyleContext::MatchIgnoreCase(const char *s) {
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if (MakeLowerCase(ch) != static_cast<unsigned char>(*s))
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return false;
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s++;
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if (MakeLowerCase(chNext) != static_cast<unsigned char>(*s))
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return false;
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s++;
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for (int n = 2; *s; n++) {
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if (*s !=
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MakeLowerCase(styler.SafeGetCharAt(currentPos + n, 0)))
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return false;
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s++;
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}
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return true;
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}
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bool StyleContext::MatchIgnoreCase2(const char *s) {
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if (MakeLowerCase(ch) != MakeLowerCase(static_cast<unsigned char>(*s)))
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return false;
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s++;
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if (!*s)
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return true;
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if (MakeLowerCase(chNext) != MakeLowerCase(static_cast<unsigned char>(*s)))
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return false;
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s++;
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for (int n = 2; *s; n++) {
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if (MakeLowerCase(static_cast<unsigned char>(*s)) !=
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MakeLowerCase(static_cast<unsigned char>(styler.SafeGetCharAt(currentPos + n))))
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return false;
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s++;
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}
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return true;
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}
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void StyleContext::GetCurrent(char *s, Sci_PositionU len) const {
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styler.GetRange(styler.GetStartSegment(), currentPos, s, len);
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}
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void StyleContext::GetCurrentLowered(char *s, Sci_PositionU len) const {
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styler.GetRangeLowered(styler.GetStartSegment(), currentPos, s, len);
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}
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void StyleContext::GetCurrentString(std::string &string, Transform transform) const {
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const Sci_PositionU startPos = styler.GetStartSegment();
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const Sci_PositionU len = currentPos - styler.GetStartSegment();
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string.resize(len);
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if (transform == Transform::lower) {
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styler.GetRangeLowered(startPos, currentPos, string.data(), len + 1);
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} else {
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styler.GetRange(startPos, currentPos, string.data(), len + 1);
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}
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}
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