Mercurial > hg > xemacs-beta
annotate man/lispref/dragndrop.texi @ 5307:c096d8051f89
Have NATNUMP give t for positive bignums; check limits appropriately.
src/ChangeLog addition:
2010-11-20 Aidan Kehoe <kehoea@parhasard.net>
* abbrev.c (Fexpand_abbrev):
* alloc.c:
* alloc.c (Fmake_list):
* alloc.c (Fmake_vector):
* alloc.c (Fmake_bit_vector):
* alloc.c (Fmake_byte_code):
* alloc.c (Fmake_string):
* alloc.c (vars_of_alloc):
* bytecode.c (UNUSED):
* bytecode.c (Fbyte_code):
* chartab.c (decode_char_table_range):
* cmds.c (Fself_insert_command):
* data.c (check_integer_range):
* data.c (Fnatnump):
* data.c (Fnonnegativep):
* data.c (Fstring_to_number):
* elhash.c (hash_table_size_validate):
* elhash.c (decode_hash_table_size):
* eval.c (Fbacktrace_frame):
* event-stream.c (lisp_number_to_milliseconds):
* event-stream.c (Faccept_process_output):
* event-stream.c (Frecent_keys):
* event-stream.c (Fdispatch_event):
* events.c (Fmake_event):
* events.c (Fevent_timestamp):
* events.c (Fevent_timestamp_lessp):
* events.h:
* events.h (struct command_builder):
* file-coding.c (gzip_putprop):
* fns.c:
* fns.c (check_sequence_range):
* fns.c (Frandom):
* fns.c (Fnthcdr):
* fns.c (Flast):
* fns.c (Fnbutlast):
* fns.c (Fbutlast):
* fns.c (Fmember):
* fns.c (Ffill):
* fns.c (Freduce):
* fns.c (replace_string_range_1):
* fns.c (Freplace):
* font-mgr.c (Ffc_pattern_get):
* frame-msw.c (msprinter_set_frame_properties):
* glyphs.c (check_valid_xbm_inline):
* indent.c (Fmove_to_column):
* intl-win32.c (mswindows_multibyte_to_unicode_putprop):
* lisp.h:
* lisp.h (ARRAY_DIMENSION_LIMIT):
* lread.c (decode_mode_1):
* mule-ccl.c (ccl_get_compiled_code):
* number.h:
* process-unix.c (unix_open_multicast_group):
* process.c (Fset_process_window_size):
* profile.c (Fstart_profiling):
* unicode.c (Funicode_to_char):
Change NATNUMP to return 1 for positive bignums; changes uses of
it and of CHECK_NATNUM appropriately, usually by checking for an
integer in an appropriate range.
Add array-dimension-limit and use it in #'make-vector,
#'make-string. Add array-total-size-limit, array-rank-limit while
we're at it, for the sake of any Common Lisp-oriented code that
uses these limits.
Rename check_int_range to check_integer_range, have it take
Lisp_Objects (and thus bignums) instead.
Remove bignum_butlast(), just set int_n to an appropriately large
integer if N is a bignum.
Accept bignums in check_sequence_range(), change the functions
that use check_sequence_range() appropriately.
Move the definition of NATNUMP() to number.h; document why it's a
reasonable name, contradicting an old comment.
tests/ChangeLog addition:
2010-11-20 Aidan Kehoe <kehoea@parhasard.net>
* automated/lisp-tests.el:
* automated/lisp-tests.el (featurep):
* automated/lisp-tests.el (wrong-type-argument):
* automated/mule-tests.el (featurep):
Check for args-out-of-range errors instead of wrong-type-argument
errors in various places when code is handed a large bignum
instead of a fixnum.
Also check for the wrong-type-argument errors when giving the same
code a non-integer value.
author | Aidan Kehoe <kehoea@parhasard.net> |
---|---|
date | Sat, 20 Nov 2010 16:49:11 +0000 |
parents | bc4f2511bbea |
children |
rev | line source |
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428 | 1 @c -*-texinfo-*- |
2 @c This is part of the XEmacs Lisp Reference Manual. | |
3 @c Copyright (C) 1998 Oliver Graf <ograf@fga.de> | |
444 | 4 @c Original reference is (c) 1990, 1991, 1992, 1993, 1994 Free Software Foundation, Inc. |
428 | 5 @c See the file lispref.texi for copying conditions. |
6 @setfilename ../../info/dragndrop.texi | |
7 @node Drag and Drop, Modes, Scrollbars, Top | |
8 @chapter Drag and Drop | |
9 @cindex drag and drop | |
10 | |
11 @emph{WARNING}: the Drag'n'Drop API is still under development and the | |
12 interface may change! The current implementation is considered experimental. | |
13 | |
14 Drag'n'drop is a way to transfer information between multiple applications. | |
4790
bc4f2511bbea
Remove support for the OffiX drag-and-drop protocol. See xemacs-patches
Jerry James <james@xemacs.org>
parents:
904
diff
changeset
|
15 To do this several GUIs define their own protocols. Examples are CDE, Motif, |
bc4f2511bbea
Remove support for the OffiX drag-and-drop protocol. See xemacs-patches
Jerry James <james@xemacs.org>
parents:
904
diff
changeset
|
16 KDE, MSWindows, GNOME, and many more. To catch all these protocols, XEmacs |
bc4f2511bbea
Remove support for the OffiX drag-and-drop protocol. See xemacs-patches
Jerry James <james@xemacs.org>
parents:
904
diff
changeset
|
17 provides a generic API. |
428 | 18 |
19 One prime idea behind the API is to use a data interface that is | |
20 transparent for all systems. The author thinks that this is best | |
21 archived by using URL and MIME data, cause any internet enabled system | |
22 must support these for email already. XEmacs also already provides | |
23 powerful interfaces to support these types of data (tm and w3). | |
24 | |
25 @menu | |
26 * Supported Protocols:: Which low-level protocols are supported. | |
27 * Drop Interface:: How XEmacs handles a drop from another application. | |
28 * Drag Interface:: Calls to initiate a drag from XEmacs. | |
29 @end menu | |
30 | |
31 @node Supported Protocols | |
32 @section Supported Protocols | |
33 | |
34 The current release of XEmacs only support a small set of Drag'n'drop | |
35 protocols. Some of these only support limited options available in the API. | |
36 | |
37 @menu | |
38 * CDE dt:: Common Desktop Environment used on suns. | |
39 * MSWindows OLE:: Mr. Gates way of live. | |
40 * Loose ends:: The other protocols. | |
41 @end menu | |
42 | |
43 @node CDE dt | |
44 @subsection CDE dt | |
45 @cindex CDE dt | |
46 | |
47 CDE stands for Common Desktop Environment. It is based on the Motif | |
48 widget library. It's drag'n'drop protocol is also an abstraction of the | |
49 Motif protocol (so it might be possible, that XEmacs will also support | |
50 the Motif protocol soon). | |
51 | |
52 CDE has three different types: file, buffer, and text. XEmacs only uses | |
53 file and buffer drags. The API will disallow full URL drags, only file | |
54 method URLs are passed through. | |
55 | |
56 Buffer drags are always converted to plain text. | |
57 | |
58 @node MSWindows OLE | |
59 @subsection MSWindows OLE | |
60 @cindex MSWindows OLE | |
61 | |
62 Only allows file drags and drops. | |
63 | |
64 @node Loose ends | |
65 @subsection Loose ends | |
66 | |
67 The following protocols will be supported soon: Xdnd, Motif, Xde (if I | |
4790
bc4f2511bbea
Remove support for the OffiX drag-and-drop protocol. See xemacs-patches
Jerry James <james@xemacs.org>
parents:
904
diff
changeset
|
68 get some specs). |
428 | 69 |
70 In particular Xdnd will be one of the protocols that can benefit from | |
71 the XEmacs API, cause it also uses MIME types to encode dragged data. | |
72 | |
73 @node Drop Interface | |
74 @section Drop Interface | |
75 @cindex drop | |
76 @cindex Drop API | |
77 | |
904 | 78 For each activated low-level protocol, an internal routine will catch |
428 | 79 incoming drops and convert them to a dragdrop-drop type |
80 misc-user-event. | |
81 | |
82 This misc-user-event has its function argument set to | |
83 @code{dragdrop-drop-dispatch} and the object contains the data of the drop | |
84 (converted to URL/MIME specific data). This function will search the variable | |
444 | 85 @code{experimental-dragdrop-drop-functions} for a function that can handle the |
428 | 86 dropped data. |
87 | |
88 To modify the drop behavior, the user can modify the variable | |
89 @code{experimental-dragdrop-drop-functions}. Each element of this list | |
90 specifies a possible handler for dropped data. The first one that can handle | |
91 the data will return @code{t} and exit. Another possibility is to set a | |
92 extent-property with the same name. Extents are checked prior to the | |
93 variable. | |
94 | |
95 The customization group @code{drag-n-drop} shows all variables of user | |
444 | 96 interest. |
428 | 97 |
98 @node Drag Interface | |
99 @section Drag Interface | |
100 @cindex drag | |
101 @cindex Drag API | |
102 | |
103 This describes the drag API (not implemented yet). |