62 lines
1.6 KiB
C++
62 lines
1.6 KiB
C++
// Scintilla source code edit control
|
|
/** @file CharClassify.cxx
|
|
** Character classifications used by Document and RESearch.
|
|
**/
|
|
// Copyright 2006 by Neil Hodgson <neilh@scintilla.org>
|
|
// The License.txt file describes the conditions under which this software may be distributed.
|
|
|
|
#include "CharClassify.h"
|
|
|
|
#ifdef SCI_NAMESPACE
|
|
using namespace Scintilla;
|
|
#endif
|
|
|
|
// Shut up annoying Visual C++ warnings:
|
|
#ifdef _MSC_VER
|
|
#pragma warning(disable: 4514)
|
|
#endif
|
|
|
|
CharClassify::CharClassify() {
|
|
SetDefaultCharClasses(true);
|
|
}
|
|
|
|
void CharClassify::SetDefaultCharClasses(bool includeWordClass) {
|
|
// Initialize all char classes to default values
|
|
for (int ch = 0; ch < 256; ch++) {
|
|
if (ch == '\r' || ch == '\n')
|
|
charClass[ch] = ccNewLine;
|
|
else if (ch < 0x20 || ch == ' ')
|
|
charClass[ch] = ccSpace;
|
|
else if (includeWordClass && (ch >= 0x80 || isalnum(ch) || ch == '_'))
|
|
charClass[ch] = ccWord;
|
|
else
|
|
charClass[ch] = ccPunctuation;
|
|
}
|
|
}
|
|
|
|
void CharClassify::SetCharClasses(const unsigned char *chars, cc newCharClass) {
|
|
// Apply the newCharClass to the specifed chars
|
|
if (chars) {
|
|
while (*chars) {
|
|
charClass[*chars] = static_cast<unsigned char>(newCharClass);
|
|
chars++;
|
|
}
|
|
}
|
|
}
|
|
|
|
int CharClassify::GetCharsOfClass(cc characterClass, unsigned char *buffer) {
|
|
// Get characters belonging to the given char class; return the number
|
|
// of characters (if the buffer is NULL, don't write to it).
|
|
int count = 0;
|
|
for (int ch = maxChar - 1; ch >= 0; --ch) {
|
|
if (charClass[ch] == characterClass) {
|
|
++count;
|
|
if (buffer) {
|
|
*buffer = static_cast<unsigned char>(ch);
|
|
buffer++;
|
|
}
|
|
}
|
|
}
|
|
return count;
|
|
}
|