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