aboutsummaryrefslogtreecommitdiff
path: root/man/man1/acme.html
blob: bc1063bd71e62cdb6059a3e95330df333d386743 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
<head>
<title>acme(1) - Plan 9 from User Space</title>
<meta content="text/html; charset=utf-8" http-equiv=Content-Type>
</head>
<body bgcolor=#ffffff>
<table border=0 cellpadding=0 cellspacing=0 width=100%>
<tr height=10><td>
<tr><td width=20><td>
<tr><td width=20><td><b>ACME(1)</b><td align=right><b>ACME(1)</b>
<tr><td width=20><td colspan=2>
    <br>
<p><font size=+1><b>NAME     </b></font><br>

<table border=0 cellpadding=0 cellspacing=0><tr height=2><td><tr><td width=20><td>

    acme, win, awd &ndash; interactive text windows<br>
    
</table>
<p><font size=+1><b>SYNOPSIS     </b></font><br>

<table border=0 cellpadding=0 cellspacing=0><tr height=2><td><tr><td width=20><td>

    <tt><font size=+1>acme</font></tt> [ <tt><font size=+1>&#8722;f</font></tt> <i>varfont</i> ] [ <tt><font size=+1>&#8722;F</font></tt> <i>fixfont</i> ] [ <tt><font size=+1>&#8722;c</font></tt> <i>ncol</i> ] [ <tt><font size=+1>&#8722;br</font></tt> ] [ <tt><font size=+1>&#8722;l</font></tt> <i>file</i>
    | <i>file</i> ... ] 
    <table border=0 cellpadding=0 cellspacing=0><tr height=5><td></table>
    
    <tt><font size=+1>win</font></tt> [ <i>command</i> ] 
    <table border=0 cellpadding=0 cellspacing=0><tr height=5><td></table>
    
    <tt><font size=+1>awd</font></tt> [ <i>label</i> ]<br>
    
</table>
<p><font size=+1><b>DESCRIPTION     </b></font><br>

<table border=0 cellpadding=0 cellspacing=0><tr height=2><td><tr><td width=20><td>

    <i>Acme</i> manages windows of text that may be edited interactively
    or by external programs. The interactive interface uses the keyboard
    and mouse; external programs use a set of files served by <i>acme</i>;
    these are discussed in <a href="../man4/acme.html"><i>acme</i>(4)</a>. 
    <table border=0 cellpadding=0 cellspacing=0><tr height=5><td></table>
    
    Any named <i>files</i> are read into <i>acme</i> windows before <i>acme</i> accepts
    input. With the <tt><font size=+1>&#8722;l</font></tt> option, the state of the entire system is loaded
    from <i>file</i>, which should have been created by a <tt><font size=+1>Dump</font></tt> command (q.v.),
    and subsequent <i>file</i> names are ignored. Plain files display as
    text; directories display as columnated lists of the
    names of their components, as in <tt><font size=+1>ls &#8722;p directory|mc</font></tt> except that
    the names of subdirectories have a slash appended. 
    <table border=0 cellpadding=0 cellspacing=0><tr height=5><td></table>
    
    The <tt><font size=+1>&#8722;f</font></tt> (<tt><font size=+1>&#8722;F</font></tt>) option sets the main font, usually variable-pitch
    (alternate, usually fixed-pitch); the default is <tt><font size=+1>/usr/local/plan9/font/lucidasans/euro.8.font</font></tt>
    (<tt><font size=+1>.../lucm/unicode.9.font</font></tt>). Tab intervals are set to the width
    of 4 (or the value of <tt><font size=+1>$tabstop</font></tt>) numeral zeros in the appropriate
    font. 
    <table border=0 cellpadding=0 cellspacing=0><tr height=5><td></table>
    
    <p><font size=+1><b>Windows     </b></font><br>
    <i>Acme</i> windows are in two parts: a one-line <i>tag</i> above a multi-line
    <i>body</i>. The body typically contains an image of a file, as in <a href="../man1/sam.html"><i>sam</i>(1)</a>,
    or the output of a program, as in an <a href="../man1/rio.html"><i>rio</i>(1)</a> window. The tag contains
    a number of blank-separated words, followed by a vertical bar
    character, followed by anything. The first word is the
    name of the window, typically the name of the associated file
    or directory, and the other words are commands available in that
    window. Any text may be added after the bar; examples are strings
    to search for or commands to execute in that window. Changes to
    the text left of the bar will be ignored, unless the result is
    to change the name of the window. 
    <table border=0 cellpadding=0 cellspacing=0><tr height=5><td></table>
    
    If a window holds a directory, the name (first word of the tag)
    will end with a slash.<br>
    <p><font size=+1><b>Scrolling     </b></font><br>
    Each window has a scroll bar to the left of the body. The scroll
    bar behaves much as in <a href="../man1/sam.html"><i>sam</i>(1)</a> or <a href="../man1/rio.html"><i>rio</i>(1)</a> except that scrolling
    occurs when the button is pressed, rather than released, and continues
    as long as the mouse button is held down in the scroll bar. For
    example, to scroll slowly through a file, hold button 3
    down near the top of the scroll bar. Moving the mouse down the
    scroll bar speeds up the rate of scrolling. (The experimental
    option <tt><font size=+1>&#8722;r</font></tt> reverses the scrolling behavior of buttons 1 and 3,
    to behave more like <a href="../man1/xterm.html"><i>xterm</i>(1)</a>.)<br>
    <p><font size=+1><b>Layout     </b></font><br>
    <i>Acme</i> windows are arranged in columns. By default, it creates two
    columns when starting; this can be overridden with the <tt><font size=+1>&#8722;c</font></tt> option.
    Placement is automatic but may be adjusted using the <i>layout box</i>
    in the upper left corner of each window and column. Pressing and
    holding any mouse button in the box drags the
    associated window or column. For windows, just clicking in the
    layout box grows the window in place: button 1 grows it a little,
    button 2 grows it as much as it can, still leaving all other tags
    in that column visible, and button 3 takes over the column completely,
    temporarily hiding other windows in the column. (They
    will return <i>en masse</i> if any of them needs attention.) The layout
    box in a window is normally white; when it is black in the center,
    it records that the file is &#8216;dirty&#8217;: <i>acme</i> believes it is modified
    from its original contents. 
    <table border=0 cellpadding=0 cellspacing=0><tr height=5><td></table>
    
    Tags exist at the top of each column and across the whole display.
    <i>Acme</i> pre-loads them with useful commands. Also, the tag across
    the top maintains a list of executing long-running commands.<br>
    <p><font size=+1><b>Typing     </b></font><br>
    The behavior of typed text is similar to that in <a href="../man1/rio.html"><i>rio</i>(1)</a> except
    that the characters are delivered to the tag or body under the
    mouse; there is no &#8216;click to type&#8217;. (The experimental option <tt><font size=+1>&#8722;b</font></tt>
    causes typing to go to the most recently clicked-at or made window.)
    The usual backspacing conventions apply. As in <a href="../man1/sam.html"><i>sam</i>(1)</a> but not
    <i>rio</i>, the ESC key selects the text typed since the last mouse action,
    a feature particularly useful when executing commands. A side
    effect is that typing ESC with text already selected is identical
    to a <tt><font size=+1>Cut</font></tt> command (<i>q.v.</i>). 
    <table border=0 cellpadding=0 cellspacing=0><tr height=5><td></table>
    
    Most text, including the names of windows, may be edited uniformly.
    The only exception is that the command names to the left of the
    bar in a tag are maintained automatically; changes to them are
    repaired by <i>acme</i>.<br>
    <p><font size=+1><b>Directory context     </b></font><br>
    Each window&#8217;s tag names a directory: explicitly if the window
    holds a directory; implicitly if it holds a regular file (e.g.
    the directory <tt><font size=+1>/adm</font></tt> if the window holds <tt><font size=+1>/adm/users</font></tt>). This directory
    provides a <i>context</i> for interpreting file names in that window.
    For example, the string <tt><font size=+1>users</font></tt> in a window labeled <tt><font size=+1>/adm/</font></tt> or
    <tt><font size=+1>/adm/keys</font></tt> will be interpreted as the file name <tt><font size=+1>/adm/users</font></tt>. The
    directory is defined purely textually, so it can be a non-existent
    directory or a real directory associated with a non-existent file
    (e.g. <tt><font size=+1>/adm/not&#8722;a&#8722;file</font></tt>). File names beginning with a slash are
    assumed to be absolute file names.
    <p><font size=+1><b>Errors     </b></font><br>
    Windows whose names begin with <tt><font size=+1>&#8722;</font></tt> or <tt><font size=+1>+</font></tt> conventionally hold diagnostics
    and other data not directly associated with files. A window labeled
    <tt><font size=+1>+Errors</font></tt> receives all diagnostics produced by <i>acme</i> itself. Diagnostics
    from commands run by <i>acme</i> appear in a window named <i>directory</i><tt><font size=+1>/+Errors</font></tt>
    where <i>directory</i> is
    identified by the context of the command. These error windows
    are created when needed.<br>
    <p><font size=+1><b>Mouse button 1     </b></font><br>
    Mouse button 1 selects text just as in <a href="../man1/sam.html"><i>sam</i>(1)</a> or <a href="../man1/rio.html"><i>rio</i>(1)</a><i>,</i> including
    the usual double-clicking conventions.<br>
    <p><font size=+1><b>Mouse button 2     </b></font><br>
    By an action similar to selecting text with button 1, button 2
    indicates text to execute as a command. If the indicated text
    has multiple white-space-separated words, the first is the command
    name and the second and subsequent are its arguments. If button
    2 is &#8216;clicked&#8217;--indicates a null string--<i>acme expands</i> the
    indicated text to find a command to run: if the click is within
    button-1-selected text, <i>acme</i> takes that selection as the command;
    otherwise it takes the largest string of valid file name characters
    containing the click. Valid file name characters are alphanumerics
    and <tt><font size=+1>_ . &#8722; + /</font></tt>. This behavior is similar to double-clicking
    with button 1 but, because a null command is meaningless, only
    a single click is required. 
    <table border=0 cellpadding=0 cellspacing=0><tr height=5><td></table>
    
    Some commands, all by convention starting with a capital letter,
    are <i>built-ins</i> that are executed directly by <i>acme</i>:<br>
    <tt><font size=+1>Cut</font></tt>&nbsp;&nbsp;&nbsp;Delete most recently selected text and place in snarf buffer.<br>
    <tt><font size=+1>Del</font></tt>&nbsp;&nbsp;&nbsp;Delete window. If window is dirty, instead print a warning;
    a second <tt><font size=+1>Del</font></tt> will succeed.<br>
    <tt><font size=+1>Delcol<br>
    </font></tt>
    <table border=0 cellpadding=0 cellspacing=0><tr height=2><td><tr><td width=20><td>

        Delete column and all its windows, after checking that windows
        are not dirty.<br>
        
    </table>
    <tt><font size=+1>Delete<br>
    </font></tt>
    <table border=0 cellpadding=0 cellspacing=0><tr height=2><td><tr><td width=20><td>

        Delete window without checking for dirtiness.<br>
        
    </table>
    <tt><font size=+1>Dump</font></tt>Write the state of <i>acme</i> to the file name, if specified, or
    <tt><font size=+1>$home/acme.dump</font></tt> by default.<br>
    <tt><font size=+1>Edit</font></tt>Treat the argument as a text editing command in the style
    of <a href="../man1/sam.html"><i>sam</i>(1)</a>. The full <tt><font size=+1>Sam</font></tt> language is implemented except for the
    commands <tt><font size=+1>k</font></tt>, <tt><font size=+1>n</font></tt>, <tt><font size=+1>q</font></tt>, and <tt><font size=+1>!</font></tt>. The <tt><font size=+1>=</font></tt> command is slightly different:
    it includes the file name and gives only the line address unless
    the command is explicitly <tt><font size=+1>=#</font></tt>. The &#8216;current window&#8217; for the
    
    <table border=0 cellpadding=0 cellspacing=0><tr height=2><td><tr><td width=20><td>

        command is the body of the window in which the <tt><font size=+1>Edit</font></tt> command is
        executed. Usually the <tt><font size=+1>Edit</font></tt> command would be typed in a tag; longer
        commands may be prepared in a scratch window and executed, with
        <tt><font size=+1>Edit</font></tt> itself in the current window, using the 2-1 chord described
        below.
        
    </table>
    <tt><font size=+1>Exit</font></tt>Exit <i>acme</i> after checking that windows are not dirty.<br>
    <tt><font size=+1>Font</font></tt>With no arguments, change the font of the associated window
    from fixed-spaced to proportional-spaced or <i>vice versa</i>. Given
    a file name argument, change the font of the window to that stored
    in the named file. If the file name argument is prefixed by <tt><font size=+1>var</font></tt>
    (<tt><font size=+1>fix</font></tt>), also set the default proportional-spaced
    
    <table border=0 cellpadding=0 cellspacing=0><tr height=2><td><tr><td width=20><td>

        (fixed-spaced) font for future use to that font. Other existing
        windows are unaffected.<br>
        
    </table>
    <tt><font size=+1>Get</font></tt>&nbsp;&nbsp;&nbsp;Load file into window, replacing previous contents (after checking
    for dirtiness as in <tt><font size=+1>Del</font></tt>). With no argument, use the existing file
    name of the window. Given an argument, use that file but do not
    change the window&#8217;s file name.<br>
    <tt><font size=+1>ID</font></tt>&nbsp;&nbsp;&nbsp;&nbsp;Print window ID number (<i>q.v.</i>).<br>
    <tt><font size=+1>Incl</font></tt>When opening &#8216;include&#8217; files (those enclosed in <tt><font size=+1>&lt;&gt;</font></tt>) with button
    3, <i>acme</i> searches in directories <tt><font size=+1>/$objtype/include</font></tt> and <tt><font size=+1>/sys/include</font></tt>.
    <tt><font size=+1>Incl</font></tt> adds its arguments to a supplementary list of include directories,
    analogous to the <tt><font size=+1>&#8722;I</font></tt> option to the compilers. This list is per-window
    and is inherited when
    
    <table border=0 cellpadding=0 cellspacing=0><tr height=2><td><tr><td width=20><td>

        windows are created by actions in that window, so <i>Incl</i> is most
        usefully applied to a directory containing relevant source. With
        no arguments, <i>Incl</i> prints the supplementary list. This command
        is largely superseded by plumbing (see <a href="../man7/plumb.html"><i>plumb</i>(7)</a>).<br>
        
    </table>
    <tt><font size=+1>Kill</font></tt>Send a <tt><font size=+1>kill</font></tt> note to <i>acme</i>-initiated commands named as arguments.<br>
    <tt><font size=+1>Local<br>
    </font></tt>
    <table border=0 cellpadding=0 cellspacing=0><tr height=2><td><tr><td width=20><td>

        In the Plan 9 <i>acme</i>, this prefix causes a command to be run in
        <i>acme</i>&#8217;s<i>own</i> file name space and environment variable group. On Unix
        this is impossible. <tt><font size=+1>Local</font></tt> is recognized as a prefix, but has no
        effect on the command being executed.<br>
        
    </table>
    <tt><font size=+1>Load</font></tt>Restore the state of <i>acme</i> from a file (default <tt><font size=+1>$home/acme.dump</font></tt>)
    created by the <tt><font size=+1>Dump</font></tt> command.<br>
    <tt><font size=+1>Look</font></tt>Search in body for occurrence of literal text indicated by
    the argument or, if none is given, by the selected text in the
    body.<br>
    <tt><font size=+1>New</font></tt>&nbsp;&nbsp;&nbsp;Make new window. With arguments, load the named files into
    windows.<br>
    <tt><font size=+1>Newcol<br>
    </font></tt>
    <table border=0 cellpadding=0 cellspacing=0><tr height=2><td><tr><td width=20><td>

        Make new column.<br>
        
    </table>
    <tt><font size=+1>Paste<br>
    </font></tt>
    <table border=0 cellpadding=0 cellspacing=0><tr height=2><td><tr><td width=20><td>

        Replace most recently selected text with contents of snarf buffer.<br>
        
    </table>
    <tt><font size=+1>Put</font></tt>&nbsp;&nbsp;&nbsp;Write window to the named file. With no argument, write to
    the file named in the tag of the window.<br>
    <tt><font size=+1>Putall<br>
    </font></tt>
    <table border=0 cellpadding=0 cellspacing=0><tr height=2><td><tr><td width=20><td>

        Write all dirty windows whose names indicate existing regular
        files.<br>
        
    </table>
    <tt><font size=+1>Redo</font></tt>Complement of <tt><font size=+1>Undo</font></tt>.<br>
    <tt><font size=+1>Send</font></tt>Append selected text or snarf buffer to end of body; used
    mainly with <i>win</i>.<br>
    <tt><font size=+1>Snarf<br>
    </font></tt>
    <table border=0 cellpadding=0 cellspacing=0><tr height=2><td><tr><td width=20><td>

        Place selected text in snarf buffer.<br>
        
    </table>
    <tt><font size=+1>Sort</font></tt>Arrange the windows in the column from top to bottom in lexicographical
    order based on their names.<br>
    <tt><font size=+1>Tab</font></tt>&nbsp;&nbsp;&nbsp;Set the width of tab stops for this window to the value of
    the argument, in units of widths of the zero character. With no
    arguments, it prints the current value.<br>
    <tt><font size=+1>Undo</font></tt>Undo last textual change or set of changes.<br>
    <tt><font size=+1>Zerox<br>
    </font></tt>
    <table border=0 cellpadding=0 cellspacing=0><tr height=2><td><tr><td width=20><td>

        Create a copy of the window containing most recently selected
        text. 
        <table border=0 cellpadding=0 cellspacing=0><tr height=5><td></table>
        
        
    </table>
    A common place to store text for commands is in the tag; in fact
    <i>acme</i> maintains a set of commands appropriate to the state of the
    window to the left of the bar in the tag. 
    <table border=0 cellpadding=0 cellspacing=0><tr height=5><td></table>
    
    If the text indicated with button 2 is not a recognized built-in,
    it is executed as a shell command. For example, indicating <tt><font size=+1>date</font></tt>
    with button 2 runs <a href="../man1/date.html"><i>date</i>(1)</a>. The standard and error outputs of
    commands are sent to the error window associated with the directory
    from which the command was run, which will be created if
    necessary. For example, in a window <tt><font size=+1>/etc/passwd</font></tt> executing <tt><font size=+1>pwd</font></tt>
    will produce the output <tt><font size=+1>/etc</font></tt> in a (possibly newly-created) window
    labeled <tt><font size=+1>/etc/+Errors</font></tt>; in a window containing <tt><font size=+1>/home/rob/sam/sam.c</font></tt>
    executing <tt><font size=+1>mk</font></tt> will run <a href="../man1/mk.html"><i>mk</i>(1)</a> in <tt><font size=+1>/home/rob/sam</font></tt>, producing output
    in a window labeled
    <tt><font size=+1>/home/rob/sam/+Errors</font></tt>. The environment of such commands contains
    the variable <tt><font size=+1>$%</font></tt> with value set to the filename of the window in
    which the command is run, and <tt><font size=+1>$winid</font></tt> set to the window&#8217;s id number
    (see <a href="../man4/acme.html"><i>acme</i>(4)</a>).<br>
    <p><font size=+1><b>Mouse button 3     </b></font><br>
    Pointing at text with button 3 instructs <i>acme</i> to locate or acquire
    the file, string, etc. described by the indicated text and its
    context. This description follows the actions taken when button
    3 is released after sweeping out some text. In the description,
    <i>text</i> refers to the text of the original sweep or, if it was null,
    the
    result of applying the same expansion rules that apply to button
    2 actions. 
    <table border=0 cellpadding=0 cellspacing=0><tr height=5><td></table>
    
    If the text names an existing window, <i>acme</i> moves the mouse cursor
    to the selected text in the body of that window. If the text names
    an existing file with no associated window, <i>acme</i> loads the file
    into a new window and moves the mouse there. If the text is a
    file name contained in angle brackets, <i>acme</i> loads the
    indicated include file from the directory appropriate to the suffix
    of the file name of the window holding the text. (The <tt><font size=+1>Incl</font></tt> command
    adds directories to the standard list.) 
    <table border=0 cellpadding=0 cellspacing=0><tr height=5><td></table>
    
    If the text begins with a colon, it is taken to be an address,
    in the style of <a href="../man1/sam.html"><i>sam</i>(1)</a>, within the body of the window containing
    the text. The address is evaluated, the resulting text highlighted,
    and the mouse moved to it. Thus, in <i>acme</i>, one must type <tt><font size=+1>:/regexp</font></tt>
    or <tt><font size=+1>:127</font></tt> not just <tt><font size=+1>/regexp</font></tt> or <tt><font size=+1>127</font></tt>. (There is an easier
    way to locate literal text; see below.) 
    <table border=0 cellpadding=0 cellspacing=0><tr height=5><td></table>
    
    If the text is a file name followed by a colon and an address,
    <i>acme</i> loads the file and evaluates the address. For example, clicking
    button 3 anywhere in the text <tt><font size=+1>file.c:27</font></tt> will open <tt><font size=+1>file.c</font></tt>, select
    line 27, and put the mouse at the beginning of the line. The rules
    about Error files, directories, and so on all combine
    to make this an efficient way to investigate errors from compilers,
    etc. 
    <table border=0 cellpadding=0 cellspacing=0><tr height=5><td></table>
    
    If the text is not an address or file, it is taken to be literal
    text, which is then searched for in the body of the window in
    which button 3 was clicked. If a match is found, it is selected
    and the mouse is moved there. Thus, to search for occurrences
    of a word in a file, just click button 3 on the word. Because
    of the rule of
    using the selection as the button 3 action, subsequent clicks
    will find subsequent occurrences without moving the mouse. 
    <table border=0 cellpadding=0 cellspacing=0><tr height=5><td></table>
    
    In all these actions, the mouse motion is not done if the text
    is a null string within a non-null selected string in the tag,
    so that (for example) complex regular expressions may be selected
    and applied repeatedly to the body by just clicking button 3 over
    them.<br>
    <p><font size=+1><b>Chords of mouse buttons     </b></font><br>
    Several operations are bound to multiple-button actions. After
    selecting text, with button 1 still down, pressing button 2 executes
    <tt><font size=+1>Cut</font></tt> and button 3 executes <tt><font size=+1>Paste</font></tt>. After clicking one button, the
    other undoes the first; thus (while holding down button 1) 2 followed
    by 3 is a <tt><font size=+1>Snarf</font></tt> that leaves the file undirtied; 3
    followed by 2 is a no-op. These actions also apply to text selected
    by double-clicking because the double-click expansion is made
    when the second click starts, not when it ends. 
    <table border=0 cellpadding=0 cellspacing=0><tr height=5><td></table>
    
    Commands may be given extra arguments by a mouse chord with buttons
    2 and 1. While holding down button 2 on text to be executed as
    a command, clicking button 1 appends the text last pointed to
    by button 1 as a distinct final argument. For example, to search
    for literal <tt><font size=+1>text</font></tt> one may execute <tt><font size=+1>Look text</font></tt> with
    button 2 or instead point at <tt><font size=+1>text</font></tt> with button 1 in any window,
    release button 1, then execute <tt><font size=+1>Look</font></tt>, clicking button 1 while 2
    is held down. 
    <table border=0 cellpadding=0 cellspacing=0><tr height=5><td></table>
    
    When an external command (e.g. <a href="../man1/echo.html"><i>echo</i>(1)</a>) is executed this way,
    the extra argument is passed as expected and an environment variable
    <tt><font size=+1>$acmeaddr</font></tt> is created that holds, in the form interpreted by button
    3, the fully-qualified address of the extra argument.<br>
    <p><font size=+1><b>Support programs     </b></font><br>
    <i>Win</i> creates a new <i>acme</i> window and runs a <i>command</i> (default <tt><font size=+1>$SHELL</font></tt>)
    in it, turning the window into something analogous to an <a href="../man1/rio.html"><i>rio</i>(1)</a>
    window. Executing text in a <i>win</i> window with button 2 is similar
    to using <tt><font size=+1>Send</font></tt>. 
    <table border=0 cellpadding=0 cellspacing=0><tr height=5><td></table>
    
    <i>Awd</i> loads the tag line of its window with the directory in which
    it&#8217;s running, suffixed <tt><font size=+1>&#8722;</font></tt><i>label</i> (default <tt><font size=+1>rc</font></tt>); it is intended to
    be executed by a <tt><font size=+1>cd</font></tt> function for use in <i>win</i> windows. An example
    definition is<br>
    
    <table border=0 cellpadding=0 cellspacing=0><tr height=2><td><tr><td width=20><td>

        <tt><font size=+1>fn cd { builtin cd $1 &amp;&amp; awd $sysname }<br>
        </font></tt>
    </table>
    <p><font size=+1><b>Applications and guide files     </b></font><br>
    In the directory <tt><font size=+1>/acme</font></tt> live several subdirectories, each corresponding
    to a program or set of related programs that employ <i>acme&#8217;s</i> user
    interface. Each subdirectory includes source, binaries, and a
    <tt><font size=+1>readme</font></tt> file for further information. It also includes a <tt><font size=+1>guide</font></tt>,
    a text file holding sample commands to invoke the
    programs. The idea is to find an example in the guide that best
    matches the job at hand, edit it to suit, and execute it. 
    <table border=0 cellpadding=0 cellspacing=0><tr height=5><td></table>
    
    Whenever a command is executed by <i>acme</i>, the default search path
    includes the directory of the window containing the command and
    its subdirectory <tt><font size=+1>$cputype</font></tt>. The program directories in <tt><font size=+1>/acme</font></tt> contain
    appropriately labeled subdirectories of binaries, so commands
    named in the guide files will be found
    automatically when run. Also, <i>acme</i> binds the directories <tt><font size=+1>/acme/bin</font></tt>
    and <tt><font size=+1>/acme/bin/$cputype</font></tt> to the end of <tt><font size=+1>/bin</font></tt> when it starts; this
    is where <i>acme</i>-specific programs such as <i>win</i> and <i>awd</i> reside.<br>
    
</table>
<p><font size=+1><b>FILES     </b></font><br>

<table border=0 cellpadding=0 cellspacing=0><tr height=2><td><tr><td width=20><td>

    <tt><font size=+1>$home/acme.dump</font></tt>&nbsp;&nbsp;&nbsp;default file for <tt><font size=+1>Dump</font></tt> and <tt><font size=+1>Load</font></tt>; also where state
    is written if <i>acme</i> dies or is killed unexpectedly, e.g. by deleting
    its window.<br>
    <tt><font size=+1>/acme/*/guide</font></tt>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;template files for applications<br>
    <tt><font size=+1>/acme/*/readme</font></tt>&nbsp;&nbsp;&nbsp;&nbsp;informal documentation for applications<br>
    <tt><font size=+1>/acme/*/src</font></tt>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;source for applications<br>
    <tt><font size=+1>/acme/*/mips</font></tt>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;MIPS-specific binaries for applications<br>
    
</table>
<p><font size=+1><b>SOURCE     </b></font><br>

<table border=0 cellpadding=0 cellspacing=0><tr height=2><td><tr><td width=20><td>

    <tt><font size=+1>/usr/local/plan9/src/cmd/acme<br>
    /usr/local/plan9/src/cmd/9term/win.c<br>
    /usr/local/plan9/bin/awd<br>
    </font></tt>
</table>
<p><font size=+1><b>SEE ALSO    </b></font><br>

<table border=0 cellpadding=0 cellspacing=0><tr height=2><td><tr><td width=20><td>

    <a href="../man4/acme.html"><i>acme</i>(4)</a><br>
    Rob Pike, <i>Acme: A User Interface for Programmers.<br>
    </i>
</table>
<p><font size=+1><b>BUGS     </b></font><br>

<table border=0 cellpadding=0 cellspacing=0><tr height=2><td><tr><td width=20><td>

    With the <tt><font size=+1>&#8722;l</font></tt> option or <tt><font size=+1>Load</font></tt> command, the recreation of windows
    under control of external programs such as <i>win</i> is just to rerun
    the command; information may be lost.<br>
    
</table>

<td width=20>
<tr height=20><td>
</table>
<!-- TRAILER -->
<table border=0 cellpadding=0 cellspacing=0 width=100%>
<tr height=15><td width=10><td><td width=10>
<tr><td><td>
<center>
<a href="../../"><img src="../../dist/spaceglenda100.png" alt="Space Glenda" border=1></a>
</center>
</table>
<!-- TRAILER -->
</body></html>