notepad-plus-plus-legacy/scintilla/lexlib/StyleContext.cxx
2019-05-04 21:14:48 +03:00

87 lines
2.1 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 <cassert>
#include "ILexer.h"
#include "LexAccessor.h"
#include "Accessor.h"
#include "StyleContext.h"
#include "CharacterSet.h"
using namespace Scintilla;
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;
}
bool StyleContext::MatchIgnoreCase2(const char *s) {
if (MakeLowerCase(ch) != MakeLowerCase(static_cast<unsigned char>(*s)))
return false;
s++;
if (!*s)
return true;
if (MakeLowerCase(chNext) != MakeLowerCase(static_cast<unsigned char>(*s)))
return false;
s++;
for (int n = 2; *s; n++) {
if (MakeLowerCase(static_cast<unsigned char>(*s)) !=
MakeLowerCase(static_cast<unsigned char>(styler.SafeGetCharAt(currentPos + n))))
return false;
s++;
}
return true;
}
static void getRange(Sci_PositionU start,
Sci_PositionU end,
LexAccessor &styler,
char *s,
Sci_PositionU len) {
Sci_PositionU i = 0;
while ((i < end - start + 1) && (i < len-1)) {
s[i] = styler[start + i];
i++;
}
s[i] = '\0';
}
void StyleContext::GetCurrent(char *s, Sci_PositionU len) {
getRange(styler.GetStartSegment(), currentPos - 1, styler, s, len);
}
static void getRangeLowered(Sci_PositionU start,
Sci_PositionU end,
LexAccessor &styler,
char *s,
Sci_PositionU len) {
Sci_PositionU i = 0;
while ((i < end - start + 1) && (i < len-1)) {
s[i] = MakeLowerCase(styler[start + i]);
i++;
}
s[i] = '\0';
}
void StyleContext::GetCurrentLowered(char *s, Sci_PositionU len) {
getRangeLowered(styler.GetStartSegment(), currentPos - 1, styler, s, len);
}