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// Scintilla source code edit control
/** @file CharacterSet.h
** Encapsulates a set of characters. Used to test if a character is within a set.
**/
// Copyright 2007 by Neil Hodgson <neilh@scintilla.org>
// The License.txt file describes the conditions under which this software may be distributed.
class CharacterSet {
int size;
bool valueAfter;
bool *bset;
public:
enum setBase {
setNone=0,
setLower=1,
setUpper=2,
setDigits=4,
setAlpha=setLower|setUpper,
setAlphaNum=setAlpha|setDigits
};
CharacterSet(setBase base=setNone, const char *initialSet="", int size_=0x80, bool valueAfter_=false) {
size = size_;
valueAfter = valueAfter_;
bset = new bool[size];
for (int i=0; i < size; i++) {
bset[i] = false;
}
AddString(initialSet);
if (base & setLower)
AddString("abcdefghijklmnopqrstuvwxyz");
if (base & setUpper)
AddString("ABCDEFGHIJKLMNOPQRSTUVWXYZ");
if (base & setDigits)
AddString("0123456789");
}
~CharacterSet() {
delete []bset;
bset = 0;
size = 0;
}
void Add(int val) {
PLATFORM_ASSERT(val >= 0);
PLATFORM_ASSERT(val < size);
bset[val] = true;
}
void AddString(const char *CharacterSet) {
for (const char *cp=CharacterSet; *cp; cp++) {
int val = static_cast<unsigned char>(*cp);
PLATFORM_ASSERT(val >= 0);
PLATFORM_ASSERT(val < size);
bset[val] = true;
}
}
bool Contains(int val) const {
PLATFORM_ASSERT(val >= 0);
if (val < 0) return false;
return (val < size) ? bset[val] : valueAfter;
}
};
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