Re: Unicode support for the MS Windows clipboard [new patch]

[Benjamin Riefenstahl]

Hi all,


Now that my papers are in order (;-)), here is a new version of the
much discussed patch to support the Unicode clipboard on Windows
(attached).

Notes:

- I didn't provide user-level documentation except a short mention in
  etc/NEWS.  The defaults should work fine and there should be less
  need to customize this than on X11.

- There is a short discussion of the use of the customization in
  comments in the code.  Something similar may be usefull in the ELisp
  manual, probably in "Window System Selections."


benny


2004-11-08  Benjamin Riefenstahl  <address@hidden>

        * w32select.c: Summary: Thorough rework to implement Unicode
        clipboard operations and delayed rendering.

        Drop last_clipboard_text and related code, keep track of
        ownership via clipboard_owner instead.  Drop old #if0
        sections.

        (DEFAULT_LCID, ANSICP, OEMCP, QUNICODE, QANSICP, QOEMCP)
        (clipboard_owner, modifying_clipboard, cfg_coding_system)
        (cfg_codepage, cfg_lcid, cfg_clipboard_type, current_text)
        (current_coding_system, current_requires_encoding)
        (current_num_nls, current_clipboard_type, current_lcid): New
        static variables.

        (convert_to_handle_as_ascii, convert_to_handle_as_coded)
        (render, render_all, run_protected, lisp_error_handler)
        (owner_callback, create_owner, setup_config)
        (enum_locale_callback, cp_from_locale, coding_from_cp): New
        local functions.

        (term_w32select, globals_of_w32select): New global functions.

        (Fw32_set_clipboard_data): Ignore parameter FRAME, use
        clipboard_owner instead.  Use delayed rendering and provide
        all text formats.  Provide CF_LOCALE if necessary.

        (Fw32_get_clipboard_data): Handle CF_UNICODETEXT and
        CF_LOCALE.  Fall back to CF_TEXT, if CF_UNICODETEXT is not
        available.  Force DOS line-ends for decoding.

        (Fx_selection_exists_p): Handle CF_UNICODETEXT.

        (syms_of_w32select): Init and register new variables.

        * w32.h: Add prototypes for globals_of_w32select and
        term_w32select.  Make the neighboring K&R declarations into
        prototypes, too.

        * emacs.c: Include w32.h to get function prototypes.
        (main): Call globals_of_w32select.

        * w32.c (term_ntproc): Call term_w32select. 

        * mule-cmds.el (set-locale-environment): Remove call to
        set-selection-coding-system on Windows.

        * s/ms-w32.h: Guard MSC-specific #pragmas with an #ifdef.

w32select-4.patch
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