nsCoreFoundationBreaker

After talking to @kengggg, we are agree to implement NS_GetComplexLineBreaks without using deprecated UCFindTextBreak. So I try to rewrite nsCarbonBreaker by using Core Foundation API. However I don’t have Mac since 2008 so I didn’t test. In fact, I don’t even try to compile the code.

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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 * License.
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 * The Original Code is mozilla.org code.
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 * The Initial Developer of the Original Code is
 * Theppitak Karoonboonyanan <thep@linux.thai.net>.
 * Portions created by the Initial Developer are Copyright (C) 2007
 * the Initial Developer. All Rights Reserved.
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 * Contributor(s):
 * - Theppitak Karoonboonyanan <thep@linux.thai.net>
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#include "nsComplexBreaker.h"
#include <CoreFoundation/CFStringTokenizer.h>
#include <CoreFoundation/CFBase.h>

// An imaginary nsCoreFoundationBreaker
// I don't have Mac since 2008 (Vee Satayamas)

void
NS_GetComplexLineBreaks(const PRUnichar* aText, PRUint32 aLength,
                        PRPackedBool* aBreakBefore)
{
  NS_ASSERTION(aText, "aText shouldn't be null");

  // I don't know whether CFStringCreateWithCharactersNoCopy will works.
  // Some conversions may be needed
  CFStringRef cfAText = CFStringCreateWithCharactersNoCopy(NULL, aText, aLength,
    kCFAllocatorNull);
  NS_ASSERTION(cfAText, "cfAText shouldn't be null");

  CFStringTokenizerRef tokenizer = tokenizerForString(cfAText);

  if(tokenizer)
  {
    CFStringTokenizerTokenType  tokenType; 
    // CFStringTokenizerGetCurrentTokenRange may have to be called before
    // CFStringTokenizerAdvanceToNextToken
    while(CFStringTokenizerAdvanceToNextToken(tokenizer) != 
      kCFStringTokenizerTokenNone) 
    {
      CFRange tokenRange = CFStringTokenizerGetCurrentTokenRange(tokenizer);
      aBreakBefore[tokenRange.location + tokenRange.length] = PR_TRUE;
    }
  }

  // Foundation.h must be included for CFRelease?
  CFRelease(cfAText);
}

2 thoughts on “nsCoreFoundationBreaker

  1. อยากรู้เรื่อง swath อะคับ เขาบอกว่ามันแบ่งหมวดคำให้ด้วยหรือคับ แต่ที่โหลดไปไม่เห็นมีเลยอะคับ พอจะทราบไหมคับ

    1. version ที่เป็นซอฟต์แวร์เสรีไม่ได้กำกับชนิดของคำ ไม่มีแม้แต่การใช้สถิติ

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