diff options
author | Jonathan Kew <jfkthame@googlemail.com> | 2008-03-04 13:21:23 +0000 |
---|---|---|
committer | Jonathan Kew <jfkthame@googlemail.com> | 2008-03-04 13:21:23 +0000 |
commit | f483a5de9331a257f597282e611ecfb63f5ab118 (patch) | |
tree | 756baa5a727dd0438448eb380bb6ca81fb41d534 /Build/source/libs/icu-xetex/common/uidna.cpp | |
parent | e2603863b071e717675b6a69e97c45a42e55bf2c (diff) |
remove old icu version
git-svn-id: svn://tug.org/texlive/trunk@6841 c570f23f-e606-0410-a88d-b1316a301751
Diffstat (limited to 'Build/source/libs/icu-xetex/common/uidna.cpp')
-rw-r--r-- | Build/source/libs/icu-xetex/common/uidna.cpp | 880 |
1 files changed, 0 insertions, 880 deletions
diff --git a/Build/source/libs/icu-xetex/common/uidna.cpp b/Build/source/libs/icu-xetex/common/uidna.cpp deleted file mode 100644 index 4a6b329ce52..00000000000 --- a/Build/source/libs/icu-xetex/common/uidna.cpp +++ /dev/null @@ -1,880 +0,0 @@ -/* - ******************************************************************************* - * - * Copyright (C) 2003-2006, International Business Machines - * Corporation and others. All Rights Reserved. - * - ******************************************************************************* - * file name: uidna.cpp - * encoding: US-ASCII - * tab size: 8 (not used) - * indentation:4 - * - * created on: 2003feb1 - * created by: Ram Viswanadha - */ - -#include "unicode/utypes.h" - -#if !UCONFIG_NO_IDNA - -#include "unicode/uidna.h" -#include "unicode/ustring.h" -#include "unicode/usprep.h" -#include "punycode.h" -#include "ustr_imp.h" -#include "cmemory.h" -#include "sprpimpl.h" - -/* it is official IDNA ACE Prefix is "xn--" */ -static const UChar ACE_PREFIX[] ={ 0x0078,0x006E,0x002d,0x002d } ; -#define ACE_PREFIX_LENGTH 4 - -#define MAX_LABEL_LENGTH 63 -#define HYPHEN 0x002D -/* The Max length of the labels should not be more than 64 */ -#define MAX_LABEL_BUFFER_SIZE 100 -#define MAX_IDN_BUFFER_SIZE 300 - -#define CAPITAL_A 0x0041 -#define CAPITAL_Z 0x005A -#define LOWER_CASE_DELTA 0x0020 -#define FULL_STOP 0x002E -#define DATA_FILE_NAME "uidna" - -inline static UChar -toASCIILower(UChar ch){ - if(CAPITAL_A <= ch && ch <= CAPITAL_Z){ - return ch + LOWER_CASE_DELTA; - } - return ch; -} - -inline static UBool -startsWithPrefix(const UChar* src , int32_t srcLength){ - UBool startsWithPrefix = TRUE; - - if(srcLength < ACE_PREFIX_LENGTH){ - return FALSE; - } - - for(int8_t i=0; i< ACE_PREFIX_LENGTH; i++){ - if(toASCIILower(src[i]) != ACE_PREFIX[i]){ - startsWithPrefix = FALSE; - } - } - return startsWithPrefix; -} - - -inline static int32_t -compareCaseInsensitiveASCII(const UChar* s1, int32_t s1Len, - const UChar* s2, int32_t s2Len){ - - int32_t minLength; - int32_t lengthResult; - - // are we comparing different lengths? - if(s1Len != s2Len) { - if(s1Len < s2Len) { - minLength = s1Len; - lengthResult = -1; - } else { - minLength = s2Len; - lengthResult = 1; - } - } else { - // ok the lengths are equal - minLength = s1Len; - lengthResult = 0; - } - - UChar c1,c2; - int32_t rc; - - for(int32_t i =0;/* no condition */;i++) { - - /* If we reach the ends of both strings then they match */ - if(i == minLength) { - return lengthResult; - } - - c1 = s1[i]; - c2 = s2[i]; - - /* Case-insensitive comparison */ - if(c1!=c2) { - rc=(int32_t)toASCIILower(c1)-(int32_t)toASCIILower(c2); - if(rc!=0) { - lengthResult=rc; - break; - } - } - } - return lengthResult; -} - - -/** - * Ascertain if the given code point is a label separator as - * defined by the IDNA RFC - * - * @param ch The code point to be ascertained - * @return true if the char is a label separator - * @stable ICU 2.8 - */ -static inline UBool isLabelSeparator(UChar ch){ - switch(ch){ - case 0x002e: - case 0x3002: - case 0xFF0E: - case 0xFF61: - return TRUE; - default: - return FALSE; - } -} - -// returns the length of the label excluding the separator -// if *limit == separator then the length returned does not include -// the separtor. -static inline int32_t -getNextSeparator(UChar *src,int32_t srcLength, - UChar **limit, - UBool *done){ - if(srcLength == -1){ - int32_t i; - for(i=0 ; ;i++){ - if(src[i] == 0){ - *limit = src + i; // point to null - *done = TRUE; - return i; - } - if(isLabelSeparator(src[i])){ - *limit = src + (i+1); // go past the delimiter - return i; - - } - } - }else{ - int32_t i; - for(i=0;i<srcLength;i++){ - if(isLabelSeparator(src[i])){ - *limit = src + (i+1); // go past the delimiter - return i; - } - } - // we have not found the delimiter - // if(i==srcLength) - *limit = src+srcLength; - *done = TRUE; - - return i; - } -} -static inline UBool isLDHChar(UChar ch){ - // high runner case - if(ch>0x007A){ - return FALSE; - } - //[\\u002D \\u0030-\\u0039 \\u0041-\\u005A \\u0061-\\u007A] - if( (ch==0x002D) || - (0x0030 <= ch && ch <= 0x0039) || - (0x0041 <= ch && ch <= 0x005A) || - (0x0061 <= ch && ch <= 0x007A) - ){ - return TRUE; - } - return FALSE; -} - -static int32_t -_internal_toASCII(const UChar* src, int32_t srcLength, - UChar* dest, int32_t destCapacity, - int32_t options, - UStringPrepProfile* nameprep, - UParseError* parseError, - UErrorCode* status){ - - UChar b1Stack[MAX_LABEL_BUFFER_SIZE], b2Stack[MAX_LABEL_BUFFER_SIZE]; - //initialize pointers to stack buffers - UChar *b1 = b1Stack, *b2 = b2Stack; - int32_t b1Len=0, b2Len, - b1Capacity = MAX_LABEL_BUFFER_SIZE, - b2Capacity = MAX_LABEL_BUFFER_SIZE , - reqLength=0; - - int32_t namePrepOptions = ((options & UIDNA_ALLOW_UNASSIGNED) != 0) ? USPREP_ALLOW_UNASSIGNED: 0; - UBool* caseFlags = NULL; - - // the source contains all ascii codepoints - UBool srcIsASCII = TRUE; - // assume the source contains all LDH codepoints - UBool srcIsLDH = TRUE; - - int32_t j=0; - - //get the options - UBool useSTD3ASCIIRules = (UBool)((options & UIDNA_USE_STD3_RULES) != 0); - - int32_t failPos = -1; - - if(srcLength == -1){ - srcLength = u_strlen(src); - } - - // step 1 - for( j=0;j<srcLength;j++){ - if(src[j] > 0x7F){ - srcIsASCII = FALSE; - } - b1[b1Len++] = src[j]; - } - - // step 2 is performed only if the source contains non ASCII - if(srcIsASCII == FALSE){ - - // step 2 - b1Len = usprep_prepare(nameprep, src, srcLength, b1, b1Capacity, namePrepOptions, parseError, status); - - if(*status == U_BUFFER_OVERFLOW_ERROR){ - // redo processing of string - // we do not have enough room so grow the buffer - b1 = (UChar*) uprv_malloc(b1Len * U_SIZEOF_UCHAR); - if(b1==NULL){ - *status = U_MEMORY_ALLOCATION_ERROR; - goto CLEANUP; - } - - *status = U_ZERO_ERROR; // reset error - - b1Len = usprep_prepare(nameprep, src, srcLength, b1, b1Len, namePrepOptions, parseError, status); - } - } - // error bail out - if(U_FAILURE(*status)){ - goto CLEANUP; - } - if(b1Len == 0){ - *status = U_IDNA_ZERO_LENGTH_LABEL_ERROR; - goto CLEANUP; - } - - // for step 3 & 4 - srcIsASCII = TRUE; - for( j=0;j<b1Len;j++){ - // check if output of usprep_prepare is all ASCII - if(b1[j] > 0x7F){ - srcIsASCII = FALSE; - }else if(isLDHChar(b1[j])==FALSE){ // if the char is in ASCII range verify that it is an LDH character - srcIsLDH = FALSE; - failPos = j; - } - } - if(useSTD3ASCIIRules == TRUE){ - // verify 3a and 3b - // 3(a) Verify the absence of non-LDH ASCII code points; that is, the - // absence of 0..2C, 2E..2F, 3A..40, 5B..60, and 7B..7F. - // 3(b) Verify the absence of leading and trailing hyphen-minus; that - // is, the absence of U+002D at the beginning and end of the - // sequence. - if( srcIsLDH == FALSE /* source at this point should not contain anyLDH characters */ - || b1[0] == HYPHEN || b1[b1Len-1] == HYPHEN){ - *status = U_IDNA_STD3_ASCII_RULES_ERROR; - - /* populate the parseError struct */ - if(srcIsLDH==FALSE){ - // failPos is always set the index of failure - uprv_syntaxError(b1,failPos, b1Len,parseError); - }else if(b1[0] == HYPHEN){ - // fail position is 0 - uprv_syntaxError(b1,0,b1Len,parseError); - }else{ - // the last index in the source is always length-1 - uprv_syntaxError(b1, (b1Len>0) ? b1Len-1 : b1Len, b1Len,parseError); - } - - goto CLEANUP; - } - } - // Step 4: if the source is ASCII then proceed to step 8 - if(srcIsASCII){ - if(b1Len <= destCapacity){ - uprv_memmove(dest, b1, b1Len * U_SIZEOF_UCHAR); - reqLength = b1Len; - }else{ - reqLength = b1Len; - goto CLEANUP; - } - }else{ - // step 5 : verify the sequence does not begin with ACE prefix - if(!startsWithPrefix(b1,b1Len)){ - - //step 6: encode the sequence with punycode - - // do not preserve the case flags for now! - // TODO: Preserve the case while implementing the RFE - // caseFlags = (UBool*) uprv_malloc(b1Len * sizeof(UBool)); - // uprv_memset(caseFlags,TRUE,b1Len); - - b2Len = u_strToPunycode(b1,b1Len,b2,b2Capacity,caseFlags, status); - - if(*status == U_BUFFER_OVERFLOW_ERROR){ - // redo processing of string - /* we do not have enough room so grow the buffer*/ - b2 = (UChar*) uprv_malloc(b2Len * U_SIZEOF_UCHAR); - if(b2 == NULL){ - *status = U_MEMORY_ALLOCATION_ERROR; - goto CLEANUP; - } - - *status = U_ZERO_ERROR; // reset error - - b2Len = u_strToPunycode(b1,b1Len,b2,b2Len,caseFlags, status); - } - //error bail out - if(U_FAILURE(*status)){ - goto CLEANUP; - } - // TODO : Reconsider while implementing the case preserve RFE - // convert all codepoints to lower case ASCII - // toASCIILower(b2,b2Len); - reqLength = b2Len+ACE_PREFIX_LENGTH; - - if(reqLength > destCapacity){ - *status = U_BUFFER_OVERFLOW_ERROR; - goto CLEANUP; - } - //Step 7: prepend the ACE prefix - uprv_memcpy(dest,ACE_PREFIX,ACE_PREFIX_LENGTH * U_SIZEOF_UCHAR); - //Step 6: copy the contents in b2 into dest - uprv_memcpy(dest+ACE_PREFIX_LENGTH, b2, b2Len * U_SIZEOF_UCHAR); - - }else{ - *status = U_IDNA_ACE_PREFIX_ERROR; - //position of failure is 0 - uprv_syntaxError(b1,0,b1Len,parseError); - goto CLEANUP; - } - } - // step 8: verify the length of lable - if(reqLength > MAX_LABEL_LENGTH){ - *status = U_IDNA_LABEL_TOO_LONG_ERROR; - } - -CLEANUP: - if(b1 != b1Stack){ - uprv_free(b1); - } - if(b2 != b2Stack){ - uprv_free(b2); - } - uprv_free(caseFlags); - - return u_terminateUChars(dest, destCapacity, reqLength, status); -} - -static int32_t -_internal_toUnicode(const UChar* src, int32_t srcLength, - UChar* dest, int32_t destCapacity, - int32_t options, - UStringPrepProfile* nameprep, - UParseError* parseError, - UErrorCode* status){ - - //get the options - UBool useSTD3ASCIIRules = (UBool)((options & UIDNA_USE_STD3_RULES) != 0); - int32_t namePrepOptions = ((options & UIDNA_ALLOW_UNASSIGNED) != 0) ? USPREP_ALLOW_UNASSIGNED: 0; - - UChar b1Stack[MAX_LABEL_BUFFER_SIZE], b2Stack[MAX_LABEL_BUFFER_SIZE], b3Stack[MAX_LABEL_BUFFER_SIZE]; - - //initialize pointers to stack buffers - UChar *b1 = b1Stack, *b2 = b2Stack, *b1Prime=NULL, *b3=b3Stack; - int32_t b1Len, b2Len, b1PrimeLen, b3Len, - b1Capacity = MAX_LABEL_BUFFER_SIZE, - b2Capacity = MAX_LABEL_BUFFER_SIZE, - b3Capacity = MAX_LABEL_BUFFER_SIZE, - reqLength=0; - - b1Len = 0; - UBool* caseFlags = NULL; - - UBool srcIsASCII = TRUE; - UBool srcIsLDH = TRUE; - int32_t failPos =0; - - // step 1: find out if all the codepoints in src are ASCII - if(srcLength==-1){ - srcLength = 0; - for(;src[srcLength]!=0;){ - if(src[srcLength]> 0x7f){ - srcIsASCII = FALSE; - }else if(isLDHChar(src[srcLength])==FALSE){ - // here we do not assemble surrogates - // since we know that LDH code points - // are in the ASCII range only - srcIsLDH = FALSE; - failPos = srcLength; - } - srcLength++; - } - }else if(srcLength > 0){ - for(int32_t j=0; j<srcLength; j++){ - if(src[j]> 0x7f){ - srcIsASCII = FALSE; - }else if(isLDHChar(src[j])==FALSE){ - // here we do not assemble surrogates - // since we know that LDH code points - // are in the ASCII range only - srcIsLDH = FALSE; - failPos = j; - } - } - }else{ - return 0; - } - - if(srcIsASCII == FALSE){ - // step 2: process the string - b1Len = usprep_prepare(nameprep, src, srcLength, b1, b1Capacity, namePrepOptions, parseError, status); - if(*status == U_BUFFER_OVERFLOW_ERROR){ - // redo processing of string - /* we do not have enough room so grow the buffer*/ - b1 = (UChar*) uprv_malloc(b1Len * U_SIZEOF_UCHAR); - if(b1==NULL){ - *status = U_MEMORY_ALLOCATION_ERROR; - goto CLEANUP; - } - - *status = U_ZERO_ERROR; // reset error - - b1Len = usprep_prepare(nameprep, src, srcLength, b1, b1Len, namePrepOptions, parseError, status); - } - //bail out on error - if(U_FAILURE(*status)){ - goto CLEANUP; - } - }else{ - - //just point src to b1 - b1 = (UChar*) src; - b1Len = srcLength; - } - - //step 3: verify ACE Prefix - if(startsWithPrefix(src,srcLength)){ - - //step 4: Remove the ACE Prefix - b1Prime = b1 + ACE_PREFIX_LENGTH; - b1PrimeLen = b1Len - ACE_PREFIX_LENGTH; - - //step 5: Decode using punycode - b2Len = u_strFromPunycode(b1Prime, b1PrimeLen, b2, b2Capacity, caseFlags,status); - - if(*status == U_BUFFER_OVERFLOW_ERROR){ - // redo processing of string - /* we do not have enough room so grow the buffer*/ - b2 = (UChar*) uprv_malloc(b2Len * U_SIZEOF_UCHAR); - if(b2==NULL){ - *status = U_MEMORY_ALLOCATION_ERROR; - goto CLEANUP; - } - - *status = U_ZERO_ERROR; // reset error - - b2Len = u_strFromPunycode(b1Prime, b1PrimeLen, b2, b2Len, caseFlags, status); - - } - - - //step 6:Apply toASCII - b3Len = uidna_toASCII(b2, b2Len, b3, b3Capacity,options,parseError, status); - - if(*status == U_BUFFER_OVERFLOW_ERROR){ - // redo processing of string - /* we do not have enough room so grow the buffer*/ - b3 = (UChar*) uprv_malloc(b3Len * U_SIZEOF_UCHAR); - if(b3==NULL){ - *status = U_MEMORY_ALLOCATION_ERROR; - goto CLEANUP; - } - - *status = U_ZERO_ERROR; // reset error - - b3Len = uidna_toASCII(b2,b2Len,b3,b3Len,options,parseError, status); - - } - //bail out on error - if(U_FAILURE(*status)){ - goto CLEANUP; - } - - //step 7: verify - if(compareCaseInsensitiveASCII(b1, b1Len, b3, b3Len) !=0){ - *status = U_IDNA_VERIFICATION_ERROR; - goto CLEANUP; - } - - //step 8: return output of step 5 - reqLength = b2Len; - if(b2Len <= destCapacity) { - uprv_memmove(dest, b2, b2Len * U_SIZEOF_UCHAR); - } - }else{ - // verify that STD3 ASCII rules are satisfied - if(useSTD3ASCIIRules == TRUE){ - if( srcIsLDH == FALSE /* source contains some non-LDH characters */ - || src[0] == HYPHEN || src[srcLength-1] == HYPHEN){ - *status = U_IDNA_STD3_ASCII_RULES_ERROR; - - /* populate the parseError struct */ - if(srcIsLDH==FALSE){ - // failPos is always set the index of failure - uprv_syntaxError(src,failPos, srcLength,parseError); - }else if(src[0] == HYPHEN){ - // fail position is 0 - uprv_syntaxError(src,0,srcLength,parseError); - }else{ - // the last index in the source is always length-1 - uprv_syntaxError(src, (srcLength>0) ? srcLength-1 : srcLength, srcLength,parseError); - } - - goto CLEANUP; - } - } - //copy the source to destination - if(srcLength <= destCapacity){ - uprv_memmove(dest,src,srcLength * U_SIZEOF_UCHAR); - } - reqLength = srcLength; - } - -CLEANUP: - - if(b1 != b1Stack && b1!=src){ - uprv_free(b1); - } - if(b2 != b2Stack){ - uprv_free(b2); - } - uprv_free(caseFlags); - - - // The RFC states that - // <quote> - // ToUnicode never fails. If any step fails, then the original input - // is returned immediately in that step. - // </quote> - // So if any step fails lets copy source to destination - if(U_FAILURE(*status)){ - //copy the source to destination - if(dest && srcLength <= destCapacity){ - if(srcLength == -1) { - uprv_memmove(dest,src,u_strlen(src)* U_SIZEOF_UCHAR); - } else { - uprv_memmove(dest,src,srcLength * U_SIZEOF_UCHAR); - } - } - reqLength = srcLength; - } - - return u_terminateUChars(dest, destCapacity, reqLength, status); -} - -U_CAPI int32_t U_EXPORT2 -uidna_toASCII(const UChar* src, int32_t srcLength, - UChar* dest, int32_t destCapacity, - int32_t options, - UParseError* parseError, - UErrorCode* status){ - - if(status == NULL || U_FAILURE(*status)){ - return 0; - } - if((src==NULL) || (srcLength < -1) || (destCapacity<0) || (!dest && destCapacity > 0)){ - *status = U_ILLEGAL_ARGUMENT_ERROR; - return 0; - } - - UStringPrepProfile* nameprep = usprep_open(NULL,DATA_FILE_NAME, status); - - if(U_FAILURE(*status)){ - return -1; - } - - int32_t retLen = _internal_toASCII(src, srcLength, dest, destCapacity, options, nameprep, parseError, status); - - /* close the profile*/ - usprep_close(nameprep); - - return retLen; -} - -U_CAPI int32_t U_EXPORT2 -uidna_toUnicode(const UChar* src, int32_t srcLength, - UChar* dest, int32_t destCapacity, - int32_t options, - UParseError* parseError, - UErrorCode* status){ - - if(status == NULL || U_FAILURE(*status)){ - return 0; - } - if( (src==NULL) || (srcLength < -1) || (destCapacity<0) || (!dest && destCapacity > 0)){ - *status = U_ILLEGAL_ARGUMENT_ERROR; - return 0; - } - - UStringPrepProfile* nameprep = usprep_open(NULL, DATA_FILE_NAME, status); - - if(U_FAILURE(*status)){ - return -1; - } - - int32_t retLen = _internal_toUnicode(src, srcLength, dest, destCapacity, options, nameprep, parseError, status); - - usprep_close(nameprep); - - return retLen; -} - - -U_CAPI int32_t U_EXPORT2 -uidna_IDNToASCII( const UChar *src, int32_t srcLength, - UChar* dest, int32_t destCapacity, - int32_t options, - UParseError *parseError, - UErrorCode *status){ - - if(status == NULL || U_FAILURE(*status)){ - return 0; - } - if((src==NULL) || (srcLength < -1) || (destCapacity<0) || (!dest && destCapacity > 0)){ - *status = U_ILLEGAL_ARGUMENT_ERROR; - return 0; - } - - int32_t reqLength = 0; - - UStringPrepProfile* nameprep = usprep_open(NULL, DATA_FILE_NAME, status); - - if(U_FAILURE(*status)){ - return 0; - } - - //initialize pointers - UChar *delimiter = (UChar*)src; - UChar *labelStart = (UChar*)src; - UChar *currentDest = (UChar*) dest; - int32_t remainingLen = srcLength; - int32_t remainingDestCapacity = destCapacity; - int32_t labelLen = 0, labelReqLength = 0; - UBool done = FALSE; - - - for(;;){ - - labelLen = getNextSeparator(labelStart,remainingLen, &delimiter,&done); - labelReqLength = 0; - if(!(labelLen==0 && done)){// make sure this is not a root label separator. - - labelReqLength = _internal_toASCII( labelStart, labelLen, - currentDest, remainingDestCapacity, - options, nameprep, - parseError, status); - - if(*status == U_BUFFER_OVERFLOW_ERROR){ - - *status = U_ZERO_ERROR; // reset error - remainingDestCapacity = 0; - } - } - - - if(U_FAILURE(*status)){ - break; - } - - reqLength +=labelReqLength; - // adjust the destination pointer - if(labelReqLength < remainingDestCapacity){ - currentDest = currentDest + labelReqLength; - remainingDestCapacity -= labelReqLength; - }else{ - // should never occur - remainingDestCapacity = 0; - } - if(done == TRUE){ - break; - } - - // add the label separator - if(remainingDestCapacity > 0){ - *currentDest++ = FULL_STOP; - remainingDestCapacity--; - } - reqLength++; - - labelStart = delimiter; - if(remainingLen >0 ){ - remainingLen = (int32_t)(srcLength - (delimiter - src)); - } - - } - - usprep_close(nameprep); - - return u_terminateUChars(dest, destCapacity, reqLength, status); -} - -U_CAPI int32_t U_EXPORT2 -uidna_IDNToUnicode( const UChar* src, int32_t srcLength, - UChar* dest, int32_t destCapacity, - int32_t options, - UParseError* parseError, - UErrorCode* status){ - - if(status == NULL || U_FAILURE(*status)){ - return 0; - } - if((src==NULL) || (srcLength < -1) || (destCapacity<0) || (!dest && destCapacity > 0)){ - *status = U_ILLEGAL_ARGUMENT_ERROR; - return 0; - } - - int32_t reqLength = 0; - - UStringPrepProfile* nameprep = usprep_open(NULL, DATA_FILE_NAME, status); - - if(U_FAILURE(*status)){ - return 0; - } - - //initialize pointers - UChar *delimiter = (UChar*)src; - UChar *labelStart = (UChar*)src; - UChar *currentDest = (UChar*) dest; - int32_t remainingLen = srcLength; - int32_t remainingDestCapacity = destCapacity; - int32_t labelLen = 0, labelReqLength = 0; - UBool done = FALSE; - - - for(;;){ - - labelLen = getNextSeparator(labelStart,remainingLen, &delimiter,&done); - - if(labelLen==0 && done==FALSE){ - *status = U_IDNA_ZERO_LENGTH_LABEL_ERROR; - } - labelReqLength = _internal_toUnicode(labelStart, labelLen, - currentDest, remainingDestCapacity, - options, nameprep, - parseError, status); - - if(*status == U_BUFFER_OVERFLOW_ERROR){ - - *status = U_ZERO_ERROR; // reset error - remainingDestCapacity = 0; - } - - - if(U_FAILURE(*status)){ - break; - } - - reqLength +=labelReqLength; - // adjust the destination pointer - if(labelReqLength < remainingDestCapacity){ - currentDest = currentDest + labelReqLength; - remainingDestCapacity -= labelReqLength; - }else{ - // should never occur - remainingDestCapacity = 0; - } - - if(done == TRUE){ - break; - } - - // add the label separator - if(remainingDestCapacity > 0){ - *currentDest++ = FULL_STOP; - remainingDestCapacity--; - } - reqLength++; - - labelStart = delimiter; - if(remainingLen >0 ){ - remainingLen = (int32_t)(srcLength - (delimiter - src)); - } - - } - - usprep_close(nameprep); - - return u_terminateUChars(dest, destCapacity, reqLength, status); -} - -U_CAPI int32_t U_EXPORT2 -uidna_compare( const UChar *s1, int32_t length1, - const UChar *s2, int32_t length2, - int32_t options, - UErrorCode* status){ - - if(status == NULL || U_FAILURE(*status)){ - return -1; - } - - UChar b1Stack[MAX_IDN_BUFFER_SIZE], b2Stack[MAX_IDN_BUFFER_SIZE]; - UChar *b1 = b1Stack, *b2 = b2Stack; - int32_t b1Len, b2Len, b1Capacity = MAX_IDN_BUFFER_SIZE, b2Capacity = MAX_IDN_BUFFER_SIZE; - int32_t result=-1; - - UParseError parseError; - - b1Len = uidna_IDNToASCII(s1, length1, b1, b1Capacity, options, &parseError, status); - if(*status == U_BUFFER_OVERFLOW_ERROR){ - // redo processing of string - b1 = (UChar*) uprv_malloc(b1Len * U_SIZEOF_UCHAR); - if(b1==NULL){ - *status = U_MEMORY_ALLOCATION_ERROR; - goto CLEANUP; - } - - *status = U_ZERO_ERROR; // reset error - - b1Len = uidna_IDNToASCII(s1,length1,b1,b1Len, options, &parseError, status); - - } - - b2Len = uidna_IDNToASCII(s2,length2, b2,b2Capacity, options, &parseError, status); - if(*status == U_BUFFER_OVERFLOW_ERROR){ - // redo processing of string - b2 = (UChar*) uprv_malloc(b2Len * U_SIZEOF_UCHAR); - if(b2==NULL){ - *status = U_MEMORY_ALLOCATION_ERROR; - goto CLEANUP; - } - - *status = U_ZERO_ERROR; // reset error - - b2Len = uidna_IDNToASCII(s2, length2, b2, b2Len, options, &parseError, status); - - } - // when toASCII is applied all label separators are replaced with FULL_STOP - result = compareCaseInsensitiveASCII(b1,b1Len,b2,b2Len); - -CLEANUP: - if(b1 != b1Stack){ - uprv_free(b1); - } - - if(b2 != b2Stack){ - uprv_free(b2); - } - - return result; -} - -#endif /* #if !UCONFIG_NO_IDNA */ |