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// 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 <stdlib.h>
#include <ctype.h>
#include "CharClassify.h"
// 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 CompareCaseInsensitive(const char *a, const char *b) {
while (*a && *b) {
if (*a != *b) {
char upperA = MakeUpperCase(*a);
char upperB = MakeUpperCase(*b);
if (upperA != upperB)
return upperA - upperB;
}
a++;
b++;
}
// Either *a or *b is nul
return *a - *b;
}
int CompareNCaseInsensitive(const char *a, const char *b, size_t len) {
while (*a && *b && len) {
if (*a != *b) {
char upperA = MakeUpperCase(*a);
char upperB = MakeUpperCase(*b);
if (upperA != upperB)
return upperA - upperB;
}
a++;
b++;
len--;
}
if (len == 0)
return 0;
else
// Either *a or *b is nul
return *a - *b;
}
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