/*

* Unicode manipulation functions

*

* by WangLu

* 2012.11.29

*/

#ifndef UNICODE_H__

#define UNICODE_H__

#include <iostream>

#include <GfxFont.h>

#include <CharTypes.h>

namespace pdf2htmlEX {

/*

* Check if the unicode is valid for HTML

* http://en.wikipedia.org/wiki/HTML_decimal_character_rendering

*/

bool isLegalUnicode(Unicode u);

Unicode map_to_private(CharCode code);

/* * Try to determine the Unicode value directly from the information in the font */

Unicode unicode_from_font (CharCode code, GfxFont * font);

/*

* We have to use a single Unicode value to reencode fonts

* if we got multi-unicode values, it might be expanded ligature, try to restore it

* if we cannot figure it out at the end, use a private mapping

*/

Unicode check_unicode(Unicode * u, int len, CharCode code, GfxFont * font);

/*

* Escape necessary characters, and map Unicode to UTF-8

*/

void outputUnicodes(std::ostream & out, const Unicode * u, int uLen);

} // namespace pdf2htmlEX

#endif //UNICODE_H__