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intl/icu/source/extra/scrptrun/scrptrun.h@6474c204b198 (annotated)

intl/icu/source/extra/scrptrun/scrptrun.h

Wed, 31 Dec 2014 06:09:35 +0100

author

Michael Schloh von Bennewitz <michael@schloh.com>

date

Wed, 31 Dec 2014 06:09:35 +0100

changeset 0

6474c204b198

permissions

-rw-r--r--

Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.

michael@0	1	/*
michael@0	2	*******************************************************************************
michael@0	3	*
michael@0	4	* Copyright (C) 1999-2003, International Business Machines
michael@0	5	* Corporation and others. All Rights Reserved.
michael@0	6	*
michael@0	7	*******************************************************************************
michael@0	8	* file name: scrptrun.h
michael@0	9	*
michael@0	10	* created on: 10/17/2001
michael@0	11	* created by: Eric R. Mader
michael@0	12	*/
michael@0	13
michael@0	14	#ifndef __SCRPTRUN_H
michael@0	15	#define __SCRPTRUN_H
michael@0	16
michael@0	17	#include "unicode/utypes.h"
michael@0	18	#include "unicode/uobject.h"
michael@0	19	#include "unicode/uscript.h"
michael@0	20
michael@0	21	struct ScriptRecord
michael@0	22	{
michael@0	23	UChar32 startChar;
michael@0	24	UChar32 endChar;
michael@0	25	UScriptCode scriptCode;
michael@0	26	};
michael@0	27
michael@0	28	struct ParenStackEntry
michael@0	29	{
michael@0	30	int32_t pairIndex;
michael@0	31	UScriptCode scriptCode;
michael@0	32	};
michael@0	33
michael@0	34	class ScriptRun : public UObject {
michael@0	35	public:
michael@0	36	ScriptRun();
michael@0	37
michael@0	38	ScriptRun(const UChar chars[], int32_t length);
michael@0	39
michael@0	40	ScriptRun(const UChar chars[], int32_t start, int32_t length);
michael@0	41
michael@0	42	void reset();
michael@0	43
michael@0	44	void reset(int32_t start, int32_t count);
michael@0	45
michael@0	46	void reset(const UChar chars[], int32_t start, int32_t length);
michael@0	47
michael@0	48	int32_t getScriptStart();
michael@0	49
michael@0	50	int32_t getScriptEnd();
michael@0	51
michael@0	52	UScriptCode getScriptCode();
michael@0	53
michael@0	54	UBool next();
michael@0	55
michael@0	56	/**
michael@0	57	* ICU "poor man's RTTI", returns a UClassID for the actual class.
michael@0	58	*
michael@0	59	* @stable ICU 2.2
michael@0	60	*/
michael@0	61	virtual inline UClassID getDynamicClassID() const { return getStaticClassID(); }
michael@0	62
michael@0	63	/**
michael@0	64	* ICU "poor man's RTTI", returns a UClassID for this class.
michael@0	65	*
michael@0	66	* @stable ICU 2.2
michael@0	67	*/
michael@0	68	static inline UClassID getStaticClassID() { return (UClassID)&fgClassID; }
michael@0	69
michael@0	70	private:
michael@0	71
michael@0	72	static UBool sameScript(int32_t scriptOne, int32_t scriptTwo);
michael@0	73
michael@0	74	int32_t charStart;
michael@0	75	int32_t charLimit;
michael@0	76	const UChar *charArray;
michael@0	77
michael@0	78	int32_t scriptStart;
michael@0	79	int32_t scriptEnd;
michael@0	80	UScriptCode scriptCode;
michael@0	81
michael@0	82	ParenStackEntry parenStack[128];
michael@0	83	int32_t parenSP;
michael@0	84
michael@0	85	static int8_t highBit(int32_t value);
michael@0	86	static int32_t getPairIndex(UChar32 ch);
michael@0	87
michael@0	88	static UChar32 pairedChars[];
michael@0	89	static const int32_t pairedCharCount;
michael@0	90	static const int32_t pairedCharPower;
michael@0	91	static const int32_t pairedCharExtra;
michael@0	92
michael@0	93	/**
michael@0	94	* The address of this static class variable serves as this class's ID
michael@0	95	* for ICU "poor man's RTTI".
michael@0	96	*/
michael@0	97	static const char fgClassID;
michael@0	98	};
michael@0	99
michael@0	100	inline ScriptRun::ScriptRun()
michael@0	101	{
michael@0	102	reset(NULL, 0, 0);
michael@0	103	}
michael@0	104
michael@0	105	inline ScriptRun::ScriptRun(const UChar chars[], int32_t length)
michael@0	106	{
michael@0	107	reset(chars, 0, length);
michael@0	108	}
michael@0	109
michael@0	110	inline ScriptRun::ScriptRun(const UChar chars[], int32_t start, int32_t length)
michael@0	111	{
michael@0	112	reset(chars, start, length);
michael@0	113	}
michael@0	114
michael@0	115	inline int32_t ScriptRun::getScriptStart()
michael@0	116	{
michael@0	117	return scriptStart;
michael@0	118	}
michael@0	119
michael@0	120	inline int32_t ScriptRun::getScriptEnd()
michael@0	121	{
michael@0	122	return scriptEnd;
michael@0	123	}
michael@0	124
michael@0	125	inline UScriptCode ScriptRun::getScriptCode()
michael@0	126	{
michael@0	127	return scriptCode;
michael@0	128	}
michael@0	129
michael@0	130	inline void ScriptRun::reset()
michael@0	131	{
michael@0	132	scriptStart = charStart;
michael@0	133	scriptEnd = charStart;
michael@0	134	scriptCode = USCRIPT_INVALID_CODE;
michael@0	135	parenSP = -1;
michael@0	136	}
michael@0	137
michael@0	138	inline void ScriptRun::reset(int32_t start, int32_t length)
michael@0	139	{
michael@0	140	charStart = start;
michael@0	141	charLimit = start + length;
michael@0	142
michael@0	143	reset();
michael@0	144	}
michael@0	145
michael@0	146	inline void ScriptRun::reset(const UChar chars[], int32_t start, int32_t length)
michael@0	147	{
michael@0	148	charArray = chars;
michael@0	149
michael@0	150	reset(start, length);
michael@0	151	}
michael@0	152
michael@0	153
michael@0	154	#endif