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// Scintilla source code edit control
/** @file LexAccessor.cxx
** Interfaces between Scintilla and lexers.
**/
// Copyright 1998-2010 by Neil Hodgson <neilh@scintilla.org>
// The License.txt file describes the conditions under which this software may be distributed.
#include <cassert>
#include <cstring>
#include <string>
#include <algorithm>
#include "ILexer.h"
#include "LexAccessor.h"
#include "CharacterSet.h"
using namespace Lexilla;
namespace Lexilla {
bool LexAccessor::MatchIgnoreCase(Sci_Position pos, const char *s) {
assert(s);
for (; *s; s++, pos++) {
if (*s != MakeLowerCase(SafeGetCharAt(pos))) {
return false;
}
}
return true;
}
void LexAccessor::GetRange(Sci_PositionU startPos_, Sci_PositionU endPos_, char *s, Sci_PositionU len) {
assert(s);
assert(startPos_ <= endPos_ && len != 0);
endPos_ = std::min(endPos_, startPos_ + len - 1);
len = endPos_ - startPos_;
if (startPos_ >= static_cast<Sci_PositionU>(startPos) && endPos_ <= static_cast<Sci_PositionU>(endPos)) {
const char * const p = buf + (startPos_ - startPos);
memcpy(s, p, len);
} else {
pAccess->GetCharRange(s, startPos_, len);
}
s[len] = '\0';
}
void LexAccessor::GetRangeLowered(Sci_PositionU startPos_, Sci_PositionU endPos_, char *s, Sci_PositionU len) {
assert(s);
GetRange(startPos_, endPos_, s, len);
while (*s) {
if (*s >= 'A' && *s <= 'Z') {
*s += 'a' - 'A';
}
++s;
}
}
std::string LexAccessor::GetRange(Sci_PositionU startPos_, Sci_PositionU endPos_) {
assert(startPos_ < endPos_);
const Sci_PositionU len = endPos_ - startPos_;
std::string s(len, '\0');
GetRange(startPos_, endPos_, s.data(), len + 1);
return s;
}
std::string LexAccessor::GetRangeLowered(Sci_PositionU startPos_, Sci_PositionU endPos_) {
assert(startPos_ < endPos_);
const Sci_PositionU len = endPos_ - startPos_;
std::string s(len, '\0');
GetRangeLowered(startPos_, endPos_, s.data(), len + 1);
return s;
}
}
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