Restoring authorship annotation for <[email protected]>. Commit 1 of 2.

1 files changed, 914 insertions, 914 deletions

diff --git a/contrib/libs/icu/common/uidna.cpp b/contrib/libs/icu/common/uidna.cpp
index ac2f9c3c8cd..80e43563ba2 100644
--- a/contrib/libs/icu/common/uidna.cpp
+++ b/contrib/libs/icu/common/uidna.cpp
@@ -1,921 +1,921 @@
 // © 2016 and later: Unicode, Inc. and others.
-// License & terms of use: http://www.unicode.org/copyright.html
-/*
- *******************************************************************************
- *
- *   Copyright (C) 2003-2014, International Business Machines
- *   Corporation and others.  All Rights Reserved.
- *
- *******************************************************************************
- *   file name:  uidna.cpp
+// License & terms of use: http://www.unicode.org/copyright.html 
+/* 
+ ******************************************************************************* 
+ * 
+ *   Copyright (C) 2003-2014, International Business Machines 
+ *   Corporation and others.  All Rights Reserved. 
+ * 
+ ******************************************************************************* 
+ *   file name:  uidna.cpp 
  *   encoding:   UTF-8
- *   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 "uassert.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
-/* The Max length of the labels should not be more than MAX_LABEL_LENGTH */
-#define MAX_LABEL_BUFFER_SIZE 100
-
-#define MAX_DOMAIN_NAME_LENGTH 255
-/* The Max length of the domain names should not be more than MAX_DOMAIN_NAME_LENGTH */
-#define MAX_IDN_BUFFER_SIZE   MAX_DOMAIN_NAME_LENGTH+1
-
-#define LOWER_CASE_DELTA 0x0020
-#define HYPHEN           0x002D
-#define FULL_STOP        0x002E
-#define CAPITAL_A        0x0041
-#define CAPITAL_Z        0x005A
-
-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){
-    if(srcLength < ACE_PREFIX_LENGTH){
-        return FALSE;
-    }
-
-    for(int8_t i=0; i< ACE_PREFIX_LENGTH; i++){
-        if(toASCIILower(src[i]) != ACE_PREFIX[i]){
+ *   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 "uassert.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 
+/* The Max length of the labels should not be more than MAX_LABEL_LENGTH */ 
+#define MAX_LABEL_BUFFER_SIZE 100 
+ 
+#define MAX_DOMAIN_NAME_LENGTH 255 
+/* The Max length of the domain names should not be more than MAX_DOMAIN_NAME_LENGTH */ 
+#define MAX_IDN_BUFFER_SIZE   MAX_DOMAIN_NAME_LENGTH+1 
+ 
+#define LOWER_CASE_DELTA 0x0020 
+#define HYPHEN           0x002D 
+#define FULL_STOP        0x002E 
+#define CAPITAL_A        0x0041 
+#define CAPITAL_Z        0x005A 
+ 
+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){ 
+    if(srcLength < ACE_PREFIX_LENGTH){ 
+        return FALSE; 
+    } 
+ 
+    for(int8_t i=0; i< ACE_PREFIX_LENGTH; i++){ 
+        if(toASCIILower(src[i]) != ACE_PREFIX[i]){ 
             return FALSE;
-        }
-    }
+        } 
+    } 
     return TRUE;
-}
-
-
-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)
-{
-
-    // TODO Revisit buffer handling. The label should not be over 63 ASCII characters. ICU4J may need to be updated too.
-    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);
-    }
-    
-    if(srcLength > b1Capacity){
-        b1 = (UChar*) uprv_malloc(srcLength * U_SIZEOF_UCHAR);
-        if(b1==NULL){
-            *status = U_MEMORY_ALLOCATION_ERROR;
-            goto CLEANUP;
-        }
-        b1Capacity = srcLength;
-    }
-
-    // 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
-            if(b1 != b1Stack){
-                uprv_free(b1);
-            }
-            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){
-            u_memmove(dest, b1, b1Len);
-            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
-            u_memcpy(dest, ACE_PREFIX, ACE_PREFIX_LENGTH);
-            //Step 6: copy the contents in b2 into dest
-            u_memcpy(dest+ACE_PREFIX_LENGTH, b2, b2Len);
-
-        }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 label
-    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);
+} 
+ 
+ 
+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) 
+{ 
+ 
+    // TODO Revisit buffer handling. The label should not be over 63 ASCII characters. ICU4J may need to be updated too. 
+    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; 
-
-    // TODO Revisit buffer handling. The label should not be over 63 ASCII characters. ICU4J may need to be updated too.
-    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 = 0, b2Len, b1PrimeLen, b3Len,
-            b1Capacity = MAX_LABEL_BUFFER_SIZE, 
-            b2Capacity = MAX_LABEL_BUFFER_SIZE,
-            b3Capacity = MAX_LABEL_BUFFER_SIZE,
-            reqLength=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;
+    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); 
+    } 
+     
+    if(srcLength > b1Capacity){ 
+        b1 = (UChar*) uprv_malloc(srcLength * U_SIZEOF_UCHAR); 
+        if(b1==NULL){ 
+            *status = U_MEMORY_ALLOCATION_ERROR; 
+            goto CLEANUP; 
+        } 
+        b1Capacity = srcLength; 
+    } 
+ 
+    // 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 
+            if(b1 != b1Stack){ 
+                uprv_free(b1); 
+            } 
+            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){ 
+            u_memmove(dest, b1, b1Len); 
+            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 
+            u_memcpy(dest, ACE_PREFIX, ACE_PREFIX_LENGTH); 
+            //Step 6: copy the contents in b2 into dest 
+            u_memcpy(dest+ACE_PREFIX_LENGTH, b2, b2Len); 
+ 
+        }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 label 
+    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;  
+ 
+    // TODO Revisit buffer handling. The label should not be over 63 ASCII characters. ICU4J may need to be updated too. 
+    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 = 0, b2Len, b1PrimeLen, b3Len, 
+            b1Capacity = MAX_LABEL_BUFFER_SIZE,  
+            b2Capacity = MAX_LABEL_BUFFER_SIZE, 
+            b3Capacity = MAX_LABEL_BUFFER_SIZE, 
+            reqLength=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; 
                 break;
-            }/*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;
-    }
-
-    // The RFC states that 
-    // <quote>
-    // ToUnicode never fails. If any step fails, then the original input
-    // is returned immediately in that step.
-    // </quote>
-
-    //step 3: verify ACE Prefix
-    if(startsWithPrefix(b1,b1Len)){
-
-        //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){
-            // Cause the original to be returned.
-            *status = U_IDNA_VERIFICATION_ERROR;
-            goto CLEANUP;
-        }
-
-        //step 8: return output of step 5
-        reqLength = b2Len;
-        if(b2Len <= destCapacity) {
-            u_memmove(dest, b2, b2Len);
-        }
-    }
-    else{
-        // See the start of this if statement for why this is commented out.
-        // 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;
-            }
-        }*/
-        // just return the source
-        //copy the source to destination
-        if(srcLength <= destCapacity){
-            u_memmove(dest, src, srcLength);
-        }
-        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){
-            // srcLength should have already been set earlier.
-            U_ASSERT(srcLength >= 0);
-            u_memmove(dest, src, srcLength);
-        }
-        reqLength = srcLength;
-        *status = U_ZERO_ERROR;
-    }
-
-    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_openByType(USPREP_RFC3491_NAMEPREP, 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_openByType(USPREP_RFC3491_NAMEPREP, 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_openByType(USPREP_RFC3491_NAMEPREP, status);
-    
-    if(U_FAILURE(*status)){
-        return 0;
-    }
-
+            }/*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; 
+    } 
+ 
+    // The RFC states that  
+    // <quote> 
+    // ToUnicode never fails. If any step fails, then the original input 
+    // is returned immediately in that step. 
+    // </quote> 
+ 
+    //step 3: verify ACE Prefix 
+    if(startsWithPrefix(b1,b1Len)){ 
+ 
+        //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){ 
+            // Cause the original to be returned. 
+            *status = U_IDNA_VERIFICATION_ERROR; 
+            goto CLEANUP; 
+        } 
+ 
+        //step 8: return output of step 5 
+        reqLength = b2Len; 
+        if(b2Len <= destCapacity) { 
+            u_memmove(dest, b2, b2Len); 
+        } 
+    } 
+    else{ 
+        // See the start of this if statement for why this is commented out. 
+        // 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; 
+            } 
+        }*/ 
+        // just return the source 
+        //copy the source to destination 
+        if(srcLength <= destCapacity){ 
+            u_memmove(dest, src, srcLength); 
+        } 
+        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){ 
+            // srcLength should have already been set earlier. 
+            U_ASSERT(srcLength >= 0); 
+            u_memmove(dest, src, srcLength); 
+        } 
+        reqLength = srcLength; 
+        *status = U_ZERO_ERROR; 
+    } 
+ 
+    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_openByType(USPREP_RFC3491_NAMEPREP, 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_openByType(USPREP_RFC3491_NAMEPREP, 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_openByType(USPREP_RFC3491_NAMEPREP, 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)); 
+        } 
+ 
+    } 
+ 
+    if(reqLength > MAX_DOMAIN_NAME_LENGTH){ 
+        *status = U_IDNA_DOMAIN_NAME_TOO_LONG_ERROR; 
+    } 
+ 
+    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_openByType(USPREP_RFC3491_NAMEPREP, 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));
-        }
-
-    }
-
-    if(reqLength > MAX_DOMAIN_NAME_LENGTH){
-        *status = U_IDNA_DOMAIN_NAME_TOO_LONG_ERROR;
-    }
-
-    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_openByType(USPREP_RFC3491_NAMEPREP, 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);
-        
-        // The RFC states that 
-        // <quote>
-        // ToUnicode never fails. If any step fails, then the original input
-        // is returned immediately in that step.
-        // </quote>
-        // _internal_toUnicode will copy the label.
-        /*if(labelLen==0 && done==FALSE){ 
-            *status = U_IDNA_ZERO_LENGTH_LABEL_ERROR;
-            break;
-        }*/
-        
-        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
-        // Unlike the ToASCII operation we don't normalize the label separators
-        if(remainingDestCapacity > 0){
-            *currentDest++ = *(labelStart + labelLen);
-            remainingDestCapacity--;
-        }
-        reqLength++;
-
-        labelStart = delimiter;
-        if(remainingLen >0 ){
-            remainingLen = (int32_t)(srcLength - (delimiter - src));
-        }
-
-    }
-
-    if(reqLength > MAX_DOMAIN_NAME_LENGTH){
-        *status = U_IDNA_DOMAIN_NAME_TOO_LONG_ERROR;
-    }
-
-    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 */
+    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); 
+         
+        // The RFC states that  
+        // <quote> 
+        // ToUnicode never fails. If any step fails, then the original input 
+        // is returned immediately in that step. 
+        // </quote> 
+        // _internal_toUnicode will copy the label. 
+        /*if(labelLen==0 && done==FALSE){  
+            *status = U_IDNA_ZERO_LENGTH_LABEL_ERROR; 
+            break; 
+        }*/ 
+         
+        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 
+        // Unlike the ToASCII operation we don't normalize the label separators 
+        if(remainingDestCapacity > 0){ 
+            *currentDest++ = *(labelStart + labelLen); 
+            remainingDestCapacity--; 
+        } 
+        reqLength++; 
+ 
+        labelStart = delimiter; 
+        if(remainingLen >0 ){ 
+            remainingLen = (int32_t)(srcLength - (delimiter - src)); 
+        } 
+ 
+    } 
+ 
+    if(reqLength > MAX_DOMAIN_NAME_LENGTH){ 
+        *status = U_IDNA_DOMAIN_NAME_TOO_LONG_ERROR; 
+    } 
+ 
+    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 */