PDF::API2::Basic::TTF::Cmap(3pm) - phpMan

PDF::API2::Basic::TTF::Cmap(3pmUser Contributed Perl DocumentatioPDF::API2::Basic::TTF::Cmap(3pm)



NAME
       PDF::API2::Basic::TTF::Cmap - Character map table

DESCRIPTION
       Looks 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 VARIABLES
       The instance variables listed here are not preceeded by a space due to their emulating
       structural information in the font.

       Num Number of subtables in this table

       Tables
           An array of subtables ([0..Num-1])

       Each subtables also has its own instance variables which are, again, not preceeded by a
       space.

       Platform
           The platform number for this subtable

       Encoding
           The encoding number for this subtable

       Format
           Gives the stored format of this subtable

       Ver Gives the version (or language) information for this subtable

       val A hash keyed by the codepoint value (not a string) storing the glyph id

METHODS
       $t->read

       Reads 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_ms

       Finds 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_enc

       Returns 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
       o   No support for format 2 tables (MBCS)

AUTHOR
       Martin Hosken Martin_Hosken AT sil.org. See PDF::API2::Basic::TTF::Font for copyright and
       licensing.



perl v5.10.0                                2007-08-27           PDF::API2::Basic::TTF::Cmap(3pm)

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