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SqMod/vendor/POCO/Foundation/include/Poco/Unicode.h
Sandu Liviu Catalin 4a6bfc086c Major plugin refactor and cleanup.
Switched to POCO library for unified platform/library interface.
Deprecated the external module API. It was creating more problems than solving.
Removed most built-in libraries in favor of system libraries for easier maintenance.
Cleaned and secured code with help from static analyzers.
2021-01-30 08:51:39 +02:00

328 lines
6.1 KiB
C++

//
// Unicode.h
//
// Library: Foundation
// Package: Text
// Module: Unicode
//
// Definition of the Unicode class.
//
// Copyright (c) 2007, Applied Informatics Software Engineering GmbH.
// and Contributors.
//
// SPDX-License-Identifier: BSL-1.0
//
#ifndef Foundation_Unicode_INCLUDED
#define Foundation_Unicode_INCLUDED
#include "Poco/Foundation.h"
namespace Poco {
class Foundation_API Unicode
/// This class contains enumerations and static
/// utility functions for dealing with Unicode characters
/// and their properties.
///
/// For more information on Unicode, see <http://www.unicode.org>.
///
/// The implementation is based on the Unicode support
/// functions in PCRE.
{
public:
// Implementation note: the following definitions must be kept
// in sync with those from ucp.h (PCRE).
enum CharacterCategory
/// Unicode character categories.
{
UCP_OTHER,
UCP_LETTER,
UCP_MARK,
UCP_NUMBER,
UCP_PUNCTUATION,
UCP_SYMBOL,
UCP_SEPARATOR
};
enum CharacterType
/// Unicode character types.
{
UCP_CONTROL,
UCP_FORMAT,
UCP_UNASSIGNED,
UCP_PRIVATE_USE,
UCP_SURROGATE,
UCP_LOWER_CASE_LETTER,
UCP_MODIFIER_LETTER,
UCP_OTHER_LETTER,
UCP_TITLE_CASE_LETTER,
UCP_UPPER_CASE_LETTER,
UCP_SPACING_MARK,
UCP_ENCLOSING_MARK,
UCP_NON_SPACING_MARK,
UCP_DECIMAL_NUMBER,
UCP_LETTER_NUMBER,
UCP_OTHER_NUMBER,
UCP_CONNECTOR_PUNCTUATION,
UCP_DASH_PUNCTUATION,
UCP_CLOSE_PUNCTUATION,
UCP_FINAL_PUNCTUATION,
UCP_INITIAL_PUNCTUATION,
UCP_OTHER_PUNCTUATION,
UCP_OPEN_PUNCTUATION,
UCP_CURRENCY_SYMBOL,
UCP_MODIFIER_SYMBOL,
UCP_MATHEMATICAL_SYMBOL,
UCP_OTHER_SYMBOL,
UCP_LINE_SEPARATOR,
UCP_PARAGRAPH_SEPARATOR,
UCP_SPACE_SEPARATOR
};
enum Script
/// Unicode 7.0 script identifiers.
{
UCP_ARABIC,
UCP_ARMENIAN,
UCP_BENGALI,
UCP_BOPOMOFO,
UCP_BRAILLE,
UCP_BUGINESE,
UCP_BUHID,
UCP_CANADIAN_ABORIGINAL,
UCP_CHEROKEE,
UCP_COMMON,
UCP_COPTIC,
UCP_CYPRIOT,
UCP_CYRILLIC,
UCP_DESERET,
UCP_DEVANAGARI,
UCP_ETHIOPIC,
UCP_GEORGIAN,
UCP_GLAGOLITIC,
UCP_GOTHIC,
UCP_GREEK,
UCP_GUJARATI,
UCP_GURMUKHI,
UCP_HAN,
UCP_HANGUL,
UCP_HANUNOO,
UCP_HEBREW,
UCP_HIRAGANA,
UCP_INHERITED,
UCP_KANNADA,
UCP_KATAKANA,
UCP_KHAROSHTHI,
UCP_KHMER,
UCP_LAO,
UCP_LATIN,
UCP_LIMBU,
UCP_LINEAR_B,
UCP_MALAYALAM,
UCP_MONGOLIAN,
UCP_MYANMAR,
UCP_NEW_TAI_LUE,
UCP_OGHAM,
UCP_OLD_ITALIC,
UCP_OLD_PERSIAN,
UCP_ORIYA,
UCP_OSMANYA,
UCP_RUNIC,
UCP_SHAVIAN,
UCP_SINHALA,
UCP_SYLOTI_NAGRI,
UCP_SYRIAC,
UCP_TAGALOG,
UCP_TAGBANWA,
UCP_TAI_LE,
UCP_TAMIL,
UCP_TELUGU,
UCP_THAANA,
UCP_THAI,
UCP_TIBETAN,
UCP_TIFINAGH,
UCP_UGARITIC,
UCP_YI,
// Unicode 5.0
UCP_BALINESE,
UCP_CUNEIFORM,
UCP_NKO,
UCP_PHAGS_PA,
UCP_PHOENICIAN,
// Unicode 5.1
UCP_CARIAN,
UCP_CHAM,
UCP_KAYAH_LI,
UCP_LEPCHA,
UCP_LYCIAN,
UCP_LYDIAN,
UCP_OL_CHIKI,
UCP_REJANG,
UCP_SAURASHTRA,
UCP_SUNDANESE,
UCP_VAI,
// Unicode 5.2
UCP_AVESTAN,
UCP_BAMUM,
UCP_EGYPTIAN_HIEROGLYPHS,
UCP_IMPERIAL_ARAMAIC,
UCP_INSCRIPTIONAL_PAHLAVI,
UCP_INSCRIPTIONAL_PARTHIAN,
UCP_JAVANESE,
UCP_KAITHI,
UCP_LISU,
UCP_MEETEI_MAYEK,
UCP_OLD_SOUTH_ARABIAN,
UCP_OLD_TURKIC,
UCP_SAMARITAN,
UCP_TAI_THAM,
UCP_TAI_VIET,
// Unicode 6.0
UCP_BATAK,
UCP_BRAHMI,
UCP_MANDAIC,
// Unicode 6.1
UCP_CHAKMA,
UCP_MEROITIC_CURSIVE,
UCP_MEROITIC_HIEROGLYPHS,
UCP_MIAO,
UCP_SHARADA,
UCP_SORA_SOMPENG,
UCP_TAKRI,
// Unicode 7.0
UCP_BASSA_VAH,
UCP_CAUCASIAN_ALBANIAN,
UCP_DUPLOYAN,
UCP_ELBASAN,
UCP_GRANTHA,
UCP_KHOJKI,
UCP_KHUDAWADI,
UCP_LINEAR_A,
UCP_MAHAJANI,
UCP_MANICHAEAN,
UCP_MENDE_KIKAKUI,
UCP_MODI,
UCP_MRO,
UCP_NABATAEAN,
UCP_OLD_NORTH_ARABIAN,
UCP_OLD_PERMIC,
UCP_PAHAWH_HMONG,
UCP_PALMYRENE,
UCP_PSALTER_PAHLAVI,
UCP_PAU_CIN_HAU,
UCP_SIDDHAM,
UCP_TIRHUTA,
UCP_WARANG_CITI
};
enum
{
UCP_MAX_CODEPOINT = 0x10FFFF
};
struct CharacterProperties
/// This structure holds the character properties
/// of an Unicode character.
{
CharacterCategory category;
CharacterType type;
Script script;
};
static void properties(int ch, CharacterProperties& props);
/// Return the Unicode character properties for the
/// character with the given Unicode value.
static bool isSpace(int ch);
/// Returns true iff the given character is a separator.
static bool isDigit(int ch);
/// Returns true iff the given character is a numeric character.
static bool isPunct(int ch);
/// Returns true iff the given character is a punctuation character.
static bool isAlpha(int ch);
/// Returns true iff the given character is a letter.
static bool isLower(int ch);
/// Returns true iff the given character is a lowercase
/// character.
static bool isUpper(int ch);
/// Returns true iff the given character is an uppercase
/// character.
static int toLower(int ch);
/// If the given character is an uppercase character,
/// return its lowercase counterpart, otherwise return
/// the character.
static int toUpper(int ch);
/// If the given character is a lowercase character,
/// return its uppercase counterpart, otherwise return
/// the character.
};
//
// inlines
//
inline bool Unicode::isSpace(int ch)
{
CharacterProperties props;
properties(ch, props);
return props.category == UCP_SEPARATOR;
}
inline bool Unicode::isDigit(int ch)
{
CharacterProperties props;
properties(ch, props);
return props.category == UCP_NUMBER;
}
inline bool Unicode::isPunct(int ch)
{
CharacterProperties props;
properties(ch, props);
return props.category == UCP_PUNCTUATION;
}
inline bool Unicode::isAlpha(int ch)
{
CharacterProperties props;
properties(ch, props);
return props.category == UCP_LETTER;
}
inline bool Unicode::isLower(int ch)
{
CharacterProperties props;
properties(ch, props);
return props.category == UCP_LETTER && props.type == UCP_LOWER_CASE_LETTER;
}
inline bool Unicode::isUpper(int ch)
{
CharacterProperties props;
properties(ch, props);
return props.category == UCP_LETTER && props.type == UCP_UPPER_CASE_LETTER;
}
} // namespace Poco
#endif // Foundation_Unicode_INCLUDED