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Re: [Groff] -Txhtml

From: Gaius Mulley
Subject: Re: [Groff] -Txhtml
Date: 10 Apr 2007 23:13:26 +0100
User-agent: Gnus/5.09 (Gnus v5.9.0) Emacs/21.4

Werner LEMBERG <address@hidden> writes:

> > here are some proposed patches which introduce the xhtml device.
> The patches look fine!  I ask you for two things:
>   . Please provide the patch with `diff -u ...'
>   . Please provide a ChangeLog entry too.
>       Werner

Hi Werner,

here is the ChangeLog for the patches:

2007-04-10  Gaius Mulley  <address@hidden>

        * doc/groff.texinfo: Document new .O register and add cross
        reference entries.

        * src/devices/grohtml/ Document new -V and -y options.

        * src/devices/grohtml/html-table.cpp: Modified <table> and related
        tags to comply with xhtml 1.1.
        (emit_colspan, emit_td): New methods.
        (emit_col):  Use emit_td.
        (emit_table_header): Use emit_colspan if dialect xhtml is

        * src/devices/grohtml/html-table.h: Declare emit_colspan, emit_td.

        * src/devices/grohtml/html-text.cpp: Add new variable (dialect).
        Modified tags to comply with xhtml if this dialect was requested.

        * src/devices/grohtml/html-text.h: Declare html_dialect enum and
        allow it to be passed into the constructor html_text.

        * src/devices/grohtml/post-html.cpp: Add variables (valid_flag,
        groff_sig, dialect).  Modify header tag to be xhtml compliant.
        (handle_valid_flag, do_math, write_html_anchor,
        write_xhtml_anchor): Added methods to html_printer.
        (emit_line, emit_raw, do_check_center, write_title,
        write_rule, writeHeadMetaStyle): Altered to be xhtml compliant.
        (insert_split_file, do_file_components): Create xhtml
        file components if necessary and also produces a groff
        signature if requested.
        (~html_printer): Call writeHeadMetaStyle at appropriate places
        depending upon html_dialect.
        (handle_valid_flag): New method.
        (main): Added options, x, V and y.
        (troff_tag): Call do_math.
        (do_math): New method.

        * src/preproc/eqn/box.cpp: Create a distinction between
        the mathml device and the xhtml device.
        (do_text): Issue a newline at the end of the equation
        if device xhtml specified.
        (toplevel): Prefix the output of an equation by the
        .MATHML macro.
        (output_string): Suppress \n if xhtml was specified.

        * src/preproc/eqn/main.cpp: Introduce xhtml flag.
        (inline_equation): Skip leading spaces after
        inline equation for xhtml device.
        (main): Set xhtml flag if -Tmathml:xhtml is specified.

        * src/preproc/eqn/eqn.h: Declare xhtml flag as external.

        * src/preproc/eqn/text.cpp: Fix typo, added ';' to 'nu'.

        * src/preproc/html/pre-html.cpp: Define (html_dialect,
        (html_system): Improve debugging support.
        (alterDeviceTo): Test for -Txhtml when altering device
        to the image device and reset to -Txhtml.
        (addZ, addArg): Renamed addZ to addArg and introduced a
        general parameter.
        (print_args): New debugging function.
        (run_output_filter): Use print_args and addArg rather
        than addZ.
        (do_html): Add -rxhtml=1 command line parameter as an
        argument to the html generation of text when xhtml is
        needed.  Include -e on the command line if mathml is
        (scanArguments): Allow -e, -V, -y and -x options.
        -V, -y are handled by the back end.  -e sets eqn_flag.
        -x determines html dialect.

        * src/roff/groff/groff.cpp: (clear_name) New method.
        (main):  Set eflag is -e is present on command line.
        Set is_xhtml if -Txhtml is present.  Pass '-x x' to
        the html pre and post processors.  Pass '-e' to the
        html pre processor if required.  Pass '-Tmathml:xhtml'
        to eqn if xhtml is requested.

        * src/roff/troff/input.cpp:  (init_input_requests):
        Introduce new number register \n[.O].

        * tmac/s.tmac: (LP): Use .nop for semantic sugar.
        (cov*ab-init) reformat.
        (@EQ): Use EQN-HTML-IMAGE and friends rather than HTML-IMAGE.
        (CHECK-FOOTER-AND-KEEP): Define FS, FE such that they
        use <cite></cite> for the html device rather than
        generate images for footnotes.

        * tmac/troffrc-end: Define EQN-HTML-IMAGE,
        EQN-HTML-DO-IMAGE, EQN-HTML-IMAGE-END as null strings.

        * tmac/www.tmac: (HTML<?p>): New macro.
        (MATH<?p>): New macro. (PIMG), (MPIMG), (HR) use xhtml
        compliant syntax.
        (www-emit-ltag): New macro.
        (ULS): Ensure that tags are balanced in order by use of
        (ULE): Likewise uses www-emit-ltag and shuts down
        paragraphs in order.
        (OLS, OLE, DLS, DLE): Ditto.
        Define EQ and EN to EQN-HTML-IMAGE and EQN-HTML-IMAGE-END
        (EQN-HTML-IMAGE): New macro.
        (EQN-HTML-IMAGE-RIGHT): New macro.
        (EQN-HTML-IMAGE-LEFT): New macro.
        (EQN-HTML-IMAGE-INLINE): New macro.
        (EQN-HTML-DO-IMAGE): New macro.
        (EQN-HTML-IMAGE-END): New macro.
        (MATHML): New macro.

and here are the patches compressed

Attachment: latest_patch_10.gz
Description: patch for -Txhtml


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