87 lines
2.5 KiB
C++
87 lines
2.5 KiB
C++
|
// Scintilla source code edit control
|
||
|
|
/** @file StyleContext.cxx
|
||
|
|
** Lexer infrastructure.
|
||
|
|
**/
|
||
|
|
// Copyright 1998-2004 by Neil Hodgson <neilh@scintilla.org>
|
||
|
|
// This file is in the public domain.
|
||
|
|
|
||
|
|
#include <cstdlib>
|
||
|
|
#include <cstdint>
|
||
|
|
#include <cassert>
|
||
|
|
|
||
|
|
#include <string>
|
||
|
|
#include <string_view>
|
||
|
|
|
||
|
|
#include "ILexer.h"
|
||
|
|
|
||
|
|
#include "LexAccessor.h"
|
||
|
|
#include "Accessor.h"
|
||
|
|
#include "StyleContext.h"
|
||
|
|
#include "CharacterSet.h"
|
||
|
|
|
||
|
|
using namespace Lexilla;
|
||
|
|
|
||
|
|
StyleContext::StyleContext(Sci_PositionU startPos, Sci_PositionU length,
|
||
|
|
int initStyle, LexAccessor &styler_, char chMask) :
|
||
|
|
styler(styler_),
|
||
|
|
multiByteAccess((styler.Encoding() == EncodingType::eightBit) ? nullptr : styler.MultiByteAccess()),
|
||
|
|
lengthDocument(static_cast<Sci_PositionU>(styler.Length())),
|
||
|
|
endPos(((startPos + length) < lengthDocument) ? (startPos + length) : (lengthDocument+1)),
|
||
|
|
lineDocEnd(styler.GetLine(lengthDocument)),
|
||
|
|
currentPosLastRelative(SIZE_MAX),
|
||
|
|
currentPos(startPos),
|
||
|
|
currentLine(styler.GetLine(startPos)),
|
||
|
|
lineEnd(styler.LineEnd(currentLine)),
|
||
|
|
lineStartNext(styler.LineStart(currentLine + 1)),
|
||
|
|
atLineStart(static_cast<Sci_PositionU>(styler.LineStart(currentLine)) == startPos),
|
||
|
|
// Mask off all bits which aren't in the chMask.
|
||
|
|
state(initStyle &chMask) {
|
||
|
|
|
||
|
|
styler.StartAt(startPos /*, chMask*/);
|
||
|
|
styler.StartSegment(startPos);
|
||
|
|
|
||
|
|
chPrev = GetRelativeCharacter(-1);
|
||
|
|
|
||
|
|
// Variable width is now 0 so GetNextChar gets the char at currentPos into chNext/widthNext
|
||
|
|
GetNextChar();
|
||
|
|
ch = chNext;
|
||
|
|
width = widthNext;
|
||
|
|
|
||
|
|
GetNextChar();
|
||
|
|
}
|
||
|
|
|
||
|
|
bool StyleContext::MatchIgnoreCase(const char *s) {
|
||
|
|
if (MakeLowerCase(ch) != static_cast<unsigned char>(*s))
|
||
|
|
return false;
|
||
|
|
s++;
|
||
|
|
if (MakeLowerCase(chNext) != static_cast<unsigned char>(*s))
|
||
|
|
return false;
|
||
|
|
s++;
|
||
|
|
for (int n = 2; *s; n++) {
|
||
|
|
if (*s !=
|
||
|
|
MakeLowerCase(styler.SafeGetCharAt(currentPos + n, 0)))
|
||
|
|
return false;
|
||
|
|
s++;
|
||
|
|
}
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
|
||
|
|
void StyleContext::GetCurrent(char *s, Sci_PositionU len) {
|
||
|
|
styler.GetRange(styler.GetStartSegment(), currentPos, s, len);
|
||
|
|
}
|
||
|
|
|
||
|
|
void StyleContext::GetCurrentLowered(char *s, Sci_PositionU len) {
|
||
|
|
styler.GetRangeLowered(styler.GetStartSegment(), currentPos, s, len);
|
||
|
|
}
|
||
|
|
|
||
|
|
void StyleContext::GetCurrentString(std::string &string, Transform transform) {
|
||
|
|
const Sci_PositionU startPos = styler.GetStartSegment();
|
||
|
|
const Sci_PositionU len = currentPos - styler.GetStartSegment();
|
||
|
|
string.resize(len);
|
||
|
|
if (transform == Transform::lower) {
|
||
|
|
styler.GetRangeLowered(startPos, currentPos, string.data(), len + 1);
|
||
|
|
} else {
|
||
|
|
styler.GetRange(startPos, currentPos, string.data(), len + 1);
|
||
|
|
}
|
||
|
|
}
|