UTF8Latin1 Class Reference

#include <utf8latin1.h>

Inheritance diagram for UTF8Latin1:

Collaboration diagram for UTF8Latin1:

Public Member Functions
virtual const char *	getHeader () const
virtual char	processText (SWBuf &text, const SWKey *key=0, const SWModule *module=0)
	UTF8Latin1 (char rchar= '?')

Private Attributes
char	replacementChar

Detailed Description

This filter converts UTF-8 encoded text to Latin-1

Definition at line 34 of file utf8latin1.h.

Constructor & Destructor Documentation

SWORD_NAMESPACE_START UTF8Latin1::UTF8Latin1

(

char

rchar = '?'

)

Definition at line 30 of file utf8latin1.cpp.

                                 : replacementChar(rchar) {
}

Member Function Documentation

virtual const char* SWFilter::getHeader ( ) const

inlinevirtualinherited

This method can supply a header associated with the processing done with this filter. A typical example is a suggested CSS style block for classed containers.

Reimplemented in OSISLaTeX, OSISXHTML, ThMLLaTeX, ThMLXHTML, TEIXHTML, GBFLaTeX, and GBFXHTML.

Definition at line 62 of file swfilter.h.

{ return ""; }

char UTF8Latin1::processText ( SWBuf &  text, const SWKey *  key = 0, const SWModule *  module = 0  )

virtual

This method processes and appropriately modifies the text given it for a particular filter task

Parameters

text	The text to be filtered/converted
key	Current key That was used.
module	Current module.

Returns

0

Implements SWFilter.

Definition at line 34 of file utf8latin1.cpp.

{
  unsigned char *from;

  unsigned long uchar;
  unsigned char significantFirstBits, subsequent;
  
  if ((unsigned long)key < 2) {// hack, we're en(1)/de(0)ciphering
    return (char)-1;
  }

  SWBuf orig = text;
  from = (unsigned char*)orig.c_str();

  
  // -------------------------------
  
  for (text = ""; *from; from++) {
    uchar = 0;
    if ((*from & 128) != 128) {
      //            if (*from != ' ')
      uchar = *from;
    }
    else if ((*from & 128) && ((*from & 64) != 64)) {
      // error, do nothing
      continue;
    }
    else {
      *from <<= 1;
      for (subsequent = 1; (*from & 128); subsequent++) {
    *from <<= 1;
    from[subsequent] &= 63;
    uchar <<= 6;
    uchar |= from[subsequent];
      }
      subsequent--;
      *from <<=1;
      significantFirstBits = 8 - (2+subsequent);
      
      uchar |= (((short)*from) << (((6*subsequent)+significantFirstBits)-8));
      from += subsequent;
    }

    if (uchar < 0xff) {
        text += (unsigned char)uchar;
    }
    else {
        text += replacementChar;
    }
  }
  return 0;
}

Member Data Documentation

char UTF8Latin1::replacementChar

private

Definition at line 37 of file utf8latin1.h.

---

The documentation for this class was generated from the following files:

• include/utf8latin1.h
• src/modules/filters/utf8latin1.cpp