53 lines
1.5 KiB
C++
53 lines
1.5 KiB
C++
// Scintilla source code edit control
|
|
/** @file CharacterCategoryMap.h
|
|
** Returns the Unicode general category of a character.
|
|
** Similar code to Lexilla's lexilla/lexlib/CharacterCategory.h but renamed
|
|
** to avoid problems with builds that statically include both Scintilla and Lexilla.
|
|
**/
|
|
// Copyright 2013 by Neil Hodgson <neilh@scintilla.org>
|
|
// The License.txt file describes the conditions under which this software may be distributed.
|
|
|
|
#ifndef CHARACTERCATEGORYMAP_H
|
|
#define CHARACTERCATEGORYMAP_H
|
|
|
|
namespace Scintilla::Internal {
|
|
|
|
enum CharacterCategory {
|
|
ccLu, ccLl, ccLt, ccLm, ccLo,
|
|
ccMn, ccMc, ccMe,
|
|
ccNd, ccNl, ccNo,
|
|
ccPc, ccPd, ccPs, ccPe, ccPi, ccPf, ccPo,
|
|
ccSm, ccSc, ccSk, ccSo,
|
|
ccZs, ccZl, ccZp,
|
|
ccCc, ccCf, ccCs, ccCo, ccCn
|
|
};
|
|
|
|
CharacterCategory CategoriseCharacter(int character) noexcept;
|
|
|
|
// Common definitions of allowable characters in identifiers from UAX #31.
|
|
bool IsIdStart(int character) noexcept;
|
|
bool IsIdContinue(int character) noexcept;
|
|
bool IsXidStart(int character) noexcept;
|
|
bool IsXidContinue(int character) noexcept;
|
|
|
|
class CharacterCategoryMap {
|
|
private:
|
|
std::vector<unsigned char> dense;
|
|
public:
|
|
CharacterCategoryMap();
|
|
CharacterCategory CategoryFor(int character) const noexcept {
|
|
if (static_cast<size_t>(character) < dense.size()) {
|
|
return static_cast<CharacterCategory>(dense[character]);
|
|
} else {
|
|
// binary search through ranges
|
|
return CategoriseCharacter(character);
|
|
}
|
|
}
|
|
int Size() const noexcept;
|
|
void Optimize(int countCharacters);
|
|
};
|
|
|
|
}
|
|
|
|
#endif
|