Hi Glenn,

Can you suggest an alternative approach please?

Thanks,

Chris

On 24/04/2013 02:41, Glenn Adams wrote:
I don't like this. It negates any additional processing that may have occurred, such as letter spacing. It requires the IF to repeat part of the layout process. Bad idea.


On Tue, Apr 23, 2013 at 3:11 PM, Luis Bernardo <lmpmberna...@gmail.com <mailto:lmpmberna...@gmail.com>> wrote:


    With the approach implemented by Simon what gets written to the IF
    file is the original sequence, not the mapped sequence. Then when
    generating PDF from IF the same code that would generate the
    synthesized mappings when generating PDF straight from FO is
    called to recreate the mappings. So I don't think we can say there
    is information about the mappings in the text nodes.


    On 4/23/13 5:50 AM, Glenn Adams wrote:
    Ah, I reread your earlier (private) message. I see the problem
    has to do with the use of synthesized PUA mappings. Here, the
    problem really is that the font should always have a CMAP entry
    that maps to every glyph that can be produced by the GSUB
    process. However, not all fonts do this, so in the case in point,
    we have to synthesize some mapping, from which we have to turn to
    PUA assignments. This works when we generate PDF since we
    generate a subset font that contains the synthesized mappings.
    However, I can see that if this is going to IF instead of PDF/PS,
    then we need to find a way to recreate those synthesized mappings.

    I think this information is really font-specific, and should not
    be tied to specific text nodes though. So if Simon's fix uses
    text nodes, then that is probably not the best approach.


    On Mon, Apr 22, 2013 at 10:45 PM, Glenn Adams <gl...@skynav.com
    <mailto:gl...@skynav.com>> wrote:

        I'm presently at W3C WG meetings this week, but I'll try to
        get on my schedule. I'm not sure what the IF->PS/PDF problem
        is, since the IF->PDF path is clearly working from my tests.


        On Mon, Apr 22, 2013 at 4:27 PM, Luis Bernardo
        <lmpmberna...@gmail.com <mailto:lmpmberna...@gmail.com>> wrote:


            Glenn,

            Can you give your opinion about the approach used by
            Simon? As I mentioned before (in a private message), the
            IF -> PS/PDF route does not work in your original CS
            patch (for the languages that CS targets) due to the
            mapped sequences. Simon's approach works but requires
            keeping the original sequences alongside the mapped ones.
            I think it is a good approach but I would like to know if
            you have a better suggestion before we apply the patch.

            Thanks,
            Luis


            On 4/22/13 3:23 PM, Chris Bowditch (JIRA) wrote:

                [
                
https://issues.apache.org/jira/browse/FOP-2210?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
                ]

                Chris Bowditch reassigned FOP-2210:
                -----------------------------------

                     Assignee: Chris Bowditch

                    [PATCH] Complex script IF to output missing glyphs
                    --------------------------------------------------

                                     Key: FOP-2210
                                     URL:
                    https://issues.apache.org/jira/browse/FOP-2210
                                 Project: Fop
                              Issue Type: Bug
                                Reporter: simon steiner
                                Assignee: Chris Bowditch
                             Attachments: csspeedtrunk.patch,
                    fop.xconf, test.fo <http://test.fo>


                    fop test.fo <http://test.fo> -c fop.xconf -if
                    application/pdf expected.if.xml
                    fop -c fop.xconf -ifin expected.if.xml out.pdf

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