179 lines
4.9 KiB
C
179 lines
4.9 KiB
C
/*
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*******************************************************************************
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*
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* Copyright (C) 2001-2003, International Business Machines
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* Corporation and others. All Rights Reserved.
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*
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*******************************************************************************
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* file name: ucol_tok.h
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* encoding: US-ASCII
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* tab size: 8 (not used)
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* indentation:4
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*
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* created 02/22/2001
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* created by: Vladimir Weinstein
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*
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* This module reads a tailoring rule string and produces a list of
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* tokens that will be turned into collation elements
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*
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*/
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#ifndef UCOL_TOKENS_H
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#define UCOL_TOKENS_H
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#include "unicode/utypes.h"
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#include "unicode/uset.h"
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#if !UCONFIG_NO_COLLATION
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#include "ucol_imp.h"
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#include "uhash.h"
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#include "unicode/parseerr.h"
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#define UCOL_TOK_UNSET 0xFFFFFFFF
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#define UCOL_TOK_RESET 0xDEADBEEF
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#define UCOL_TOK_POLARITY_NEGATIVE 0
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#define UCOL_TOK_POLARITY_POSITIVE 1
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#define UCOL_TOK_TOP 0x04
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#define UCOL_TOK_VARIABLE_TOP 0x08
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#define UCOL_TOK_BEFORE 0x03
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#define UCOL_TOK_SUCCESS 0x10
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/* this is space for the extra strings that need to be unquoted */
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/* during the parsing of the rules */
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#define UCOL_TOK_EXTRA_RULE_SPACE_SIZE 2048
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typedef struct UColToken UColToken;
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typedef struct {
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UColToken* first;
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UColToken* last;
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UColToken* reset;
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UBool indirect;
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uint32_t baseCE;
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uint32_t baseContCE;
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uint32_t nextCE;
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uint32_t nextContCE;
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uint32_t previousCE;
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uint32_t previousContCE;
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int32_t pos[UCOL_STRENGTH_LIMIT];
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uint32_t gapsLo[3*UCOL_CE_STRENGTH_LIMIT];
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uint32_t gapsHi[3*UCOL_CE_STRENGTH_LIMIT];
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uint32_t numStr[UCOL_CE_STRENGTH_LIMIT];
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UColToken* fStrToken[UCOL_CE_STRENGTH_LIMIT];
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UColToken* lStrToken[UCOL_CE_STRENGTH_LIMIT];
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} UColTokListHeader;
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struct UColToken {
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UChar debugSource;
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UChar debugExpansion;
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UChar debugPrefix;
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uint32_t CEs[128];
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uint32_t noOfCEs;
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uint32_t expCEs[128];
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uint32_t noOfExpCEs;
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uint32_t source;
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uint32_t expansion;
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uint32_t prefix;
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uint32_t strength;
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uint32_t toInsert;
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uint32_t polarity; /* 1 for <, <<, <<<, , ; and -1 for >, >>, >>> */
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UColTokListHeader *listHeader;
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UColToken* previous;
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UColToken* next;
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UChar *rulesToParse;
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};
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/*
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* This is a token that has been parsed
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* but not yet processed. Used to reduce
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* the number of arguments in the parser
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*/
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typedef struct {
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uint32_t strength;
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uint32_t charsOffset;
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uint32_t charsLen;
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uint32_t extensionOffset;
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uint32_t extensionLen;
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uint32_t prefixOffset;
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uint32_t prefixLen;
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uint16_t flags;
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uint16_t indirectIndex;
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} UColParsedToken;
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typedef struct {
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UColParsedToken parsedToken;
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UChar *source;
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UChar *end;
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const UChar *current;
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UChar *sourceCurrent;
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UChar *extraCurrent;
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UChar *extraEnd;
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const InverseUCATableHeader *invUCA;
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const UCollator *UCA;
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UHashtable *tailored;
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UColOptionSet *opts;
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uint32_t resultLen;
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uint32_t listCapacity;
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UColTokListHeader *lh;
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UColToken *varTop;
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USet *copySet;
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USet *removeSet;
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} UColTokenParser;
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typedef struct {
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const UChar *subName;
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int32_t subLen;
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UColAttributeValue attrVal;
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} ucolTokSuboption;
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typedef struct {
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const UChar *optionName;
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int32_t optionLen;
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const ucolTokSuboption *subopts;
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int32_t subSize;
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UColAttribute attr;
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} ucolTokOption;
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#define ucol_tok_isSpecialChar(ch) \
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(((((ch) <= 0x002F) && ((ch) >= 0x0020)) || \
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(((ch) <= 0x003F) && ((ch) >= 0x003A)) || \
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(((ch) <= 0x0060) && ((ch) >= 0x005B)) || \
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(((ch) <= 0x007E) && ((ch) >= 0x007D)) || \
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(ch) == 0x007B))
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U_CFUNC
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uint32_t ucol_tok_assembleTokenList(UColTokenParser *src,
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UParseError *parseError,
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UErrorCode *status);
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U_CFUNC
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void ucol_tok_initTokenList(UColTokenParser *src, const UChar *rules, const uint32_t rulesLength, const UCollator *UCA, UErrorCode *status);
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U_CFUNC void ucol_tok_closeTokenList(UColTokenParser *src);
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U_CAPI const UChar* U_EXPORT2 ucol_tok_parseNextToken(UColTokenParser *src,
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UBool startOfRules,
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UParseError *parseError,
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UErrorCode *status);
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U_CAPI const UChar * U_EXPORT2
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ucol_tok_getNextArgument(const UChar *start, const UChar *end,
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UColAttribute *attrib, UColAttributeValue *value,
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UErrorCode *status);
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U_CAPI int32_t U_EXPORT2 ucol_inv_getNextCE(const UColTokenParser *src,
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uint32_t CE, uint32_t contCE,
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uint32_t *nextCE, uint32_t *nextContCE,
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uint32_t strength);
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U_CAPI int32_t U_EXPORT2 ucol_inv_getPrevCE(const UColTokenParser *src,
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uint32_t CE, uint32_t contCE,
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uint32_t *prevCE, uint32_t *prevContCE,
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uint32_t strength);
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#endif /* #if !UCONFIG_NO_COLLATION */
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#endif
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