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NAMEPDF::API3::Compat::API2::Basic::TTF::Cmap - Character map tableDESCRIPTIONLooks after the character map. For ease of use, the actual cmap is held in a hash against codepoint. Thus for a given table:$gid = $font->{'cmap'}{'Tables'}[0]{'val'}{$code}; Note that $code should be a true value (0x1234) rather than a string representation. INSTANCE VARIABLESThe instance variables listed here are not preceeded by a space due to their emulating structural information in the font.
Each subtables also has its own instance variables which are, again, not preceeded by a space.
METHODS$t->readReads the cmap into memory. Format 4 subtables read the whole subtable and fill in the segmented array accordingly.Format 2 subtables are not read at all. $t->ms_lookup($uni)Finds a Unicode table, giving preference to the MS one, and looks up the given Unicode codepoint in it to find the glyph id.$t->find_msFinds the a Unicode table, giving preference to the Microsoft one, and sets the "mstable" instance variable to it if found. Returns the table it finds.$t->ms_encReturns the encoding of the microsoft table (0 => symbol, etc.). Returns undef if there is no Microsoft cmap.$t->out($fh)Writes out a cmap table to a filehandle. If it has not been read, then just copies from input file to output$t->XML_element($context, $depth, $name, $val)Outputs the elements of the cmap in XML. We only need to process val here@map = $t->reverse([$num])Returns a reverse map of the table of given number or the Unicode cmap. I.e. given a glyph gives the Unicode value for it.is_unicode($index)Returns whether the table of a given index is known to be a unicode table (as specified in the specifications)BUGS
AUTHORMartin Hosken Martin_Hosken@sil.org. See PDF::API3::Compat::API2::Basic::TTF::Font for copyright and licensing.
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