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1 *os_risc.txt* For Vim version 7.2c. Last change: 2008 Jun 28
4 VIM REFERENCE MANUAL by Thomas Leonard
7 *riscos* *RISCOS* *RISC-OS*
8 This file contains the particularities for the RISC OS version of Vim.
10 The RISC OS port is a completely new port and is not based on the old "archi"
11 port.
13 1. File locations |riscos-locations|
14 2. Filename munging |riscos-munging|
15 3. Command-line use |riscos-commandline|
16 4. Desktop (GUI) use |riscos-gui|
17 5. Remote use (telnet) |riscos-remote|
18 6. Temporary files |riscos-temp-files|
19 7. Interrupting |riscos-interrupt|
20 8. Memory usage |riscos-memory|
21 9. Filetypes |riscos-filetypes|
22 10. The shell |riscos-shell|
23 11. Porting new releases |riscos-porting|
25 If I've missed anything, email me and I'll try to fix it. In fact, even if I
26 haven't missed anything then email me anyway to give me some confidence that it
27 actually works!
29 Thomas Leonard <tal197@ecs.soton.ac.uk>
31 [these URLs no longer work...]
32 Port homepage: http://www.ecs.soton.ac.uk/~tal197/
33 or try: http://www.soton.ac.uk/~tal197/
35 ==============================================================================
36 *riscos-locations*
37 1. File locations
39 The Vim executable and shared resource files are all stored inside the !Vim
40 application directory.
42 When !Vim is first seen by the filer, it aliases the *vi and *ex commands to
43 run the command-line versions of Vim (see |riscos-commandline|).
45 !Vim.Resources and !Vim.Resources2 contain the files from the standard Vim
46 distribution, but modified slightly to work within the limits of ADFS, plus
47 some extra files such as the window templates.
49 User choices are read from "Choices:*" and are saved to "<Choices$Write>.*".
50 If you have the new !Boot structure then these should be set up already. If
51 not, set Choices$Path to a list of directories to search when looking for
52 user configuration files. Set Choices$Write to the directory you want files
53 to be saved into (so your search patterns and marks can be remembered between
54 sessions).
56 ==============================================================================
57 *riscos-munging*
58 2. Filename munging
60 All pathname munging is disabled by default, so Vim should behave like a
61 normal RISC OS application now. So, if you want to edit "doc/html" then you
62 actually type "*vi doc/html".
64 The only times munging is done is when:
66 - Searching included files from C programs, since these are always munged.
67 See |[I|.
68 Note: make sure you are in the right directory when you use this
69 command (i.e. the one with subdirectories "c" and "h").
71 - Sourcing files using |:so|.
72 Paths starting "$VIM/" are munged like this:
74 $VIM/syntax/help.vim -> Vim:syntax.help
76 Also, files ending in ".vim" have their extensions removed, and slashes
77 replaced with dots.
79 Some tag files and script files may have to be edited to work under this port.
81 ==============================================================================
82 *riscos-commandline*
83 3. Command-line use
85 To use Vim from the command-line use the "*vi" command (or "*ex" for
86 |Ex-mode|).
88 Type "*vi -h" for a list of options.
90 Running the command-line version of Vim in a large high-color mode may cause
91 the scrolling to be very slow. Either change to a mode with fewer colors or
92 use the GUI version.
94 Also, holding down Ctrl will slow it down even more, and Ctrl-Shift will
95 freeze it, as usual for text programs.
97 ==============================================================================
98 *riscos-gui*
99 4. Desktop use
101 Limitations:
103 - Left scrollbars don't work properly (right and bottom are fine).
104 - Doesn't increase scroll speed if it gets behind.
106 You can resize the window by dragging the lower-right corner, even though
107 there is no icon shown there.
109 You can use the --rows and --columns arguments to specify the initial size of
110 the Vim window, like this: >
112 *Vi -g --rows 20 --columns 80
114 The global clipboard is supported, so you can select some text and then
115 paste it directly into another application (provided it supports the
116 clipboard too).
118 Clicking Menu now opens a menu like a normal RISC OS program. Hold down Shift
119 when clicking Menu to paste (from the global clipboard).
121 Dragging a file to the window replaces the CURRENT buffer (the one with the
122 cursor, NOT the one you dragged to) with the file.
124 Dragging with Ctrl held down causes a new Vim window to be opened for the
125 file (see |:sp|).
127 Dragging a file in with Shift held down in insert mode inserts the pathname of
128 the file.
130 :browse :w opens a standard RISC OS save box.
131 :browse :e opens a directory viewer.
133 For fonts, you have the choice of the system font, an outline font, the system
134 font via ZapRedraw and any of the Zap fonts via ZapRedraw: >
136 :set guifont=
137 < To use the system font via the VDU drivers. Supports
138 bold and underline.
139 >
140 :set guifont=Corpus.Medium
141 < Use the named outline font. You can use any font, but
142 only monospaced ones like Corpus look right.
143 >
144 :set guifont=Corpus.Medium:w8:h12:b:i
145 < As before, but with size of 8 point by 12 point, and
146 in bold italic.
147 If only one of width and height is given then that
148 value is used for both. If neither is given then 10
149 point is used.
151 Thanks to John Kortink, Vim can use the ZapRedraw module. Start the font name
152 with "!" (or "!!" for double height), like this: >
154 :set guifont=!!
155 < Use the system font, but via ZapRedraw. This gives a
156 faster redraw on StrongARM processors, but you can't
157 get bold or italic text. Double height.
158 >
159 :set guifont=!script
160 < Uses the named Zap font (a directory in VimFont$Path).
161 The redraw is the same speed as for "!!", but you get
162 a nicer looking font.
163 Only the "man+" and "script" fonts are supplied
164 currently, but you can use any of the Zap fonts if
165 they are in VimFont$Path.
166 Vim will try to load font files "0", "B", "I" and "IB"
167 from the named directory. Only "0" (normal style) MUST
168 be present. Link files are not currently supported.
170 Note that when using ZapRedraw the edit bar is drawn in front of the character
171 you are on rather than behind it. Also redraw is incorrect for screen modes
172 with eigen values of 0. If the font includes control characters then you can
173 get Vim to display them by changing the 'isprint' option.
175 If you find the scrolling is too slow on your machine, try experimenting
176 with the 'scrolljump' and 'ttyscroll' options.
178 In particular, StrongARM users may find that: >
180 :set ttyscroll=0
182 makes scrolling faster in high-color modes.
184 =============================================================================
185 *riscos-remote*
186 5. Remote use (telnet)
188 I have included a built-in termcap entry, but you can edit the termcap file to
189 allow other codes to be used if you want to use Vim from a remote terminal.
191 Although I do not have an internet connection to my Acorn, I have managed to
192 run Vim in a FreeTerm window using the loopback connection.
194 It seems to work pretty well now, using "*vi -T ansi".
196 ==============================================================================
197 *riscos-temp-files*
198 6. Temporary files
200 If Vim crashes then the swap and backup files (if any) will be in the
201 directories set with the 'directory' and 'bdir' options. By default the swap
202 files are in <Wimp$ScrapDir> (i.e. inside !Scrap) and backups are in the
203 directory you were saving to. Vim will allow you to try and recover the file
204 when you next try to edit it.
206 To see a list of swap files, press <F12> and type "*vi -r".
208 Vim no longer brings up ATTENTION warnings if you try to edit two files with
209 the same name in different directories.
211 However, it also no longer warns if you try to edit the same file twice (with
212 two copies of Vim), though you will still be warned when you save that the
213 datestamp has changed.
215 ==============================================================================
216 *riscos-interrupt*
217 7. Interrupting
219 To break out of a looping macro, or similar, hold down Escape in the
220 command-line version, or press CTRL-C in the GUI version.
222 ==============================================================================
223 *riscos-memory*
224 8. Memory usage
226 Vim will use dynamic areas on RISC OS 3.5 or later. If you can use them on
227 older machines then edit the !RunTxt and GVim files. I don't know what UnixLib
228 does by default on these machines so I'm playing safe.
230 It doesn't work at all well without dynamic areas, since it can't change its
231 memory allocation once running. Hence you should edit "!Vim.GVim" and
232 "!Vim.!RunTxt" to choose the best size for you. You probably need at least
233 about 1400K.
235 ==============================================================================
236 *riscos-filetypes*
237 9. Filetypes
239 You can now specify that autocommands are only executed for files of certain
240 types. The filetype is given in the form &xxx, when xxx is the filetype.
242 Filetypes must be specified by number (e.g. &fff for Text).
244 The system has changed from version 5.3. The new sequence of events is:
246 - A file is loaded. |'osfiletype'| is set to the RISC OS filetype.
247 - Based on the filetype and pathname, Vim will try to set |'filetype'| to the
248 Vim-type of the file.
249 - Setting this option may load syntax files and perform other actions.
250 - Saving the file will give it a filetype of |'osfiletype'|.
252 Some examples may make this clearer:
254 Kind of file loaded osfiletype filetype ~
255 C code "c.hellow" Text (&fff) C
256 LaTeX document LaTeX (&2a8) TeX
257 Draw document DrawFile (&aff) (not changed)
259 ==============================================================================
260 *riscos-shell*
261 10. The shell
263 - Bangs (!s) are only replaced if they are followed by a space or end-of-line,
264 since many pathnames contain them.
266 - You can prefix the command with "~", which stops any output from being
267 displayed. This also means that you don't have to press <Enter> afterwards,
268 and stops the screen from being redrawn. {only in the GUI version}
270 ==============================================================================
271 *riscos-porting*
272 11. Porting new releases to RISC OS
274 Downloading everything you need:
276 - Get the latest source distribution (see www.vim.org)
277 - Get the runtime environment files (e.g. these help files)
278 - Get the "extra" archive (contains the RISC OS specific bits)
279 - Get the RISC OS binary distribution (if possible)
282 Unarchiving:
284 - Create a raFS disk and put the archives on it
285 - Un-gzip them
286 - Un-tar them (*tar xELf 50 archive/tar)
289 Recompiling the sources:
291 - Create c, s, and h directories.
292 - Put all the header files in "h". \
293 - Put all the C files in "c". | And lose the extensions
294 - Put the assembler file ("swis/s") in "s". /
295 - Rename all the files in "proto" to "h", like this:
296 raFS::VimSrc.source.proto.file/pro
297 becomes
298 raFS::VimSrc.source.h.file_pro
299 - In the files "h.proto" and "c.termlib", search and replace
300 .pro"
301 with
302 _pro.h"
303 - Create a simple Makefile if desired and do "*make -k".
304 Use "CC = gcc -DRISCOS -DUSE_GUI -O2 -x c" in the Makefile.
305 - Save the binary as !Vim.Vim in the binary distribution.
308 Updating the run-time environment:
310 - Replace old or missing files inside !Vim.Resources with the
311 new files.
312 - Remove files in "doc" not ending in "/txt", except for "tags".
313 - Lose the extensions from the files in "doc".
314 - Edit the "doc.tags" file. Remove extensions from the second column: >
315 :%s/^\(.[^\t]*\t.*\)\.txt\t/\1\t/
316 - Remove extensions from the syntax files. Split them into two directories
317 to avoid the 77 entry limit on old ADFS filesystems.
318 - Edit "Vim:FileType" to match "*.c.*" as well as "*/c" and so on.
319 Add filetype checking too.
320 - Edit "Vim:Menu" and remove all the keys from the menus: >
321 :%s/<Tab>[^ \t]*//
322 <
323 vim:tw=78:ts=8:ft=help:norl: