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77 lines
2.1 KiB
77 lines
2.1 KiB
// Scintilla source code edit control
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/** @file LexAccessor.cxx
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** Interfaces between Scintilla and lexers.
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**/
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// Copyright 1998-2010 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 <cassert>
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#include <cstring>
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#include <string>
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#include <algorithm>
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#include "ILexer.h"
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#include "LexAccessor.h"
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#include "CharacterSet.h"
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using namespace Lexilla;
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namespace Lexilla {
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bool LexAccessor::MatchIgnoreCase(Sci_Position pos, const char *s) {
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assert(s);
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for (; *s; s++, pos++) {
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if (*s != MakeLowerCase(SafeGetCharAt(pos))) {
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return false;
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}
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}
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return true;
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}
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void LexAccessor::GetRange(Sci_PositionU startPos_, Sci_PositionU endPos_, char *s, Sci_PositionU len) const {
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assert(s);
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assert(startPos_ <= endPos_ && len != 0);
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memset(s, '\0', len);
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endPos_ = std::min(endPos_, startPos_ + len - 1);
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endPos_ = std::min(endPos_, static_cast<Sci_PositionU>(lenDoc));
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len = endPos_ - startPos_;
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if (startPos_ >= static_cast<Sci_PositionU>(startPos) && endPos_ <= static_cast<Sci_PositionU>(endPos)) {
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const char * const p = buf + (startPos_ - startPos);
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memcpy(s, p, len);
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} else {
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pAccess->GetCharRange(s, startPos_, len);
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}
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}
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void LexAccessor::GetRangeLowered(Sci_PositionU startPos_, Sci_PositionU endPos_, char *s, Sci_PositionU len) const {
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assert(s);
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GetRange(startPos_, endPos_, s, len);
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while (*s) {
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if (*s >= 'A' && *s <= 'Z') {
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*s += 'a' - 'A';
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}
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++s;
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}
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}
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std::string LexAccessor::GetRange(Sci_PositionU startPos_, Sci_PositionU endPos_) const {
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assert(startPos_ < endPos_);
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endPos_ = std::min(endPos_, static_cast<Sci_PositionU>(lenDoc));
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const Sci_PositionU len = endPos_ - startPos_;
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std::string s(len, '\0');
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GetRange(startPos_, endPos_, s.data(), len + 1);
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return s;
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}
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std::string LexAccessor::GetRangeLowered(Sci_PositionU startPos_, Sci_PositionU endPos_) const {
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assert(startPos_ < endPos_);
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endPos_ = std::min(endPos_, static_cast<Sci_PositionU>(lenDoc));
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const Sci_PositionU len = endPos_ - startPos_;
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std::string s(len, '\0');
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GetRangeLowered(startPos_, endPos_, s.data(), len + 1);
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return s;
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}
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}
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