Commit | Line | Data |
---|---|---|
e29834b8 MW |
1 | .\" -*-nroff-*- |
2 | .\" | |
3 | .\" Manual for `runlisp' | |
4 | .\" | |
5 | .\" (c) 2020 Mark Wooding | |
6 | .\" | |
7 | . | |
8 | .\"----- Licensing notice --------------------------------------------------- | |
9 | .\" | |
10 | .\" This file is part of Runlisp, a tool for invoking Common Lisp scripts. | |
11 | .\" | |
12 | .\" Runlisp is free software: you can redistribute it and/or modify it | |
13 | .\" under the terms of the GNU General Public License as published by the | |
14 | .\" Free Software Foundation; either version 3 of the License, or (at your | |
15 | .\" option) any later version. | |
16 | .\" | |
17 | .\" Runlisp is distributed in the hope that it will be useful, but WITHOUT | |
18 | .\" ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
19 | .\" FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
20 | .\" for more details. | |
21 | .\" | |
22 | .\" You should have received a copy of the GNU General Public License | |
23 | .\" along with Runlisp. If not, see <https://www.gnu.org/licenses/>. | |
24 | . | |
25 | .ie t \{\ | |
26 | . ds o \(bu | |
27 | . if \n(.g \{\ | |
28 | . fam P | |
29 | . ev an-1 | |
30 | . fam P | |
31 | . ev | |
32 | . \} | |
33 | .\} | |
34 | .el \{\ | |
35 | . ds o o | |
36 | .\} | |
37 | . | |
38 | .de hP | |
39 | .IP | |
40 | \h'-\w'\fB\\$1\ \fP'u'\fB\\$1\ \fP\c | |
41 | .. | |
eea3b0c7 | 42 | .ds .. \&.\|.\|. |
e29834b8 MW |
43 | . |
44 | .\"-------------------------------------------------------------------------- | |
45 | .TH runlisp 1 "2 August 2020" "Mark Wooding" | |
46 | .SH NAME | |
47 | runlisp \- run Common Lisp programs as scripts | |
48 | . | |
49 | .\"-------------------------------------------------------------------------- | |
50 | .SH SYNOPSIS | |
51 | . | |
52 | .B runlisp | |
10427eb2 MW |
53 | .RI [ options ] |
54 | .RB [ \-\- ] | |
55 | .I script | |
56 | .RI [ arguments | |
eea3b0c7 | 57 | \*(..] |
e29834b8 | 58 | .br |
10427eb2 MW |
59 | .B runlisp |
60 | .RI [ options ] | |
05a9f820 MW |
61 | .RB [ \-d |
62 | .IR form ] | |
e29834b8 | 63 | .RB [ \-e |
ee78edd0 | 64 | .IR form ] |
e29834b8 MW |
65 | .RB [ \-l |
66 | .IR file ] | |
d2dbcc6f MW |
67 | .RB [ \-p |
68 | .IR form ] | |
69 | .if !t \{\ | |
70 | .br | |
71 | \c | |
72 | .\} | |
e29834b8 | 73 | .RB [ \-\- ] |
e29834b8 | 74 | .RI [ arguments |
eea3b0c7 | 75 | \*(..] |
10427eb2 MW |
76 | .PP |
77 | where | |
78 | .I options | |
79 | is | |
80 | .br | |
8ed4c352 | 81 | \c |
10427eb2 MW |
82 | .RB [ \-CDEnqv ] |
83 | .RB [ +DEn ] | |
84 | .RB [ \-L | |
eea3b0c7 | 85 | .IB sys , sys , \fR\*(..] |
8ed4c352 MW |
86 | .if !t \{\ |
87 | .br | |
88 | \c | |
89 | .\} | |
10427eb2 MW |
90 | .RB [ \-c |
91 | .IR conf ] | |
92 | .RB [ \-o | |
93 | .RI [ sect \c | |
94 | .BR : ] \c | |
95 | .IB var = \c | |
96 | .IR value ] | |
e29834b8 MW |
97 | . |
98 | .\"-------------------------------------------------------------------------- | |
99 | .SH DESCRIPTION | |
100 | . | |
101 | The | |
102 | .B runlisp | |
103 | program has two main functions. | |
104 | .hP 1. | |
105 | It can be used in a script's | |
106 | .RB ` #! ' | |
107 | line to run a Common Lisp script. | |
108 | .hP 2. | |
109 | It can be used in build scripts | |
110 | to invoke a Common Lisp system, | |
111 | e.g., to build a standalone program. | |
112 | . | |
e29834b8 MW |
113 | .SS "Options" |
114 | Options are read from the command line, as usual, | |
10427eb2 MW |
115 | but also (by default) from the script's second line, |
116 | following a | |
e29834b8 | 117 | .RB ` @RUNLISP: ' |
10427eb2 | 118 | marker: see |
e29834b8 | 119 | .B Operation |
10427eb2 | 120 | below for the details. |
e29834b8 MW |
121 | . |
122 | .PP | |
123 | The options accepted are as follows. | |
124 | . | |
125 | .TP | |
10427eb2 | 126 | .BR "\-h" ", " "\-\-help" |
e29834b8 | 127 | Write a synopsis of |
10427eb2 | 128 | .BR query-runlisp-config 's |
e29834b8 MW |
129 | command-line syntax |
130 | and a description of the command-line options | |
131 | to standard output | |
132 | and immediately exit with status 0. | |
133 | . | |
134 | .TP | |
10427eb2 | 135 | .BR "\-V" ", " "\-\-version" |
e29834b8 | 136 | Write |
10427eb2 | 137 | .BR query-runlisp-config 's |
e29834b8 MW |
138 | version number |
139 | to standard output | |
140 | and immediately exit with status 0. | |
141 | . | |
142 | .TP | |
10427eb2 | 143 | .BR "\-D" ", " "\-\-vanilla-image" |
e29834b8 MW |
144 | Don't check for a custom Lisp image. |
145 | Usually, | |
146 | .B runlisp | |
147 | tries to start Lisp systems using a custom image, | |
148 | so that they'll start more quickly; | |
149 | the | |
150 | .RB ` \-D ' | |
151 | option forces the use of the default `vanilla' image | |
152 | provided with the system. | |
153 | There's not usually any good reason to prefer the vanilla image, | |
154 | except for performance comparisons, or debugging | |
155 | .B runlisp | |
156 | itself. | |
10427eb2 MW |
157 | Negate with |
158 | .B +D | |
159 | or | |
160 | .BR \-\-no-vanilla-image . | |
e29834b8 MW |
161 | . |
162 | .TP | |
10427eb2 | 163 | .BR "\-E" ", " "\-\-command-line-only" |
e29834b8 MW |
164 | Don't read embedded options from the |
165 | second line of the | |
166 | .I script | |
167 | file. | |
10427eb2 MW |
168 | Negate with |
169 | .B +E | |
170 | or | |
171 | .BR \-\-no-command-line-only . | |
e29834b8 | 172 | This has no effect in eval mode. |
e29834b8 MW |
173 | . |
174 | .TP | |
eea3b0c7 | 175 | .BI "\-L" "\fR, " "\-\-accept-lisp=" sys , sys ,\fR\*(.. |
e29834b8 | 176 | Use one of the named Lisp systems. |
7e3a8603 | 177 | The |
e29834b8 | 178 | .I sys |
7e3a8603 | 179 | names are separated by a comma |
10427eb2 MW |
180 | .RB ` , ' |
181 | and/or one or more whitespace characters. | |
e29834b8 MW |
182 | This option may be given more than once: |
183 | the effect is the same as a single option | |
184 | listing all of the systems named, in the same order. | |
185 | If a system is named more than once, | |
186 | a warning is issued (at verbosity level 1 or higher), | |
187 | and all but the first occurrence is ignored. | |
7e3a8603 MW |
188 | System names which do not refer to known Lisp systems |
189 | are silently ignored: | |
190 | otherwise, a script which supports an unusual Lisp system | |
191 | could never run at a site which doesn't have | |
192 | configuration runes for that Lisp system, | |
193 | even though they're useless | |
194 | if the system isn't actually installed. | |
e29834b8 MW |
195 | . |
196 | .TP | |
10427eb2 MW |
197 | .BI "\-c" "\fR, " "\-\-config-file=" conf |
198 | Read configuration from | |
199 | .IR conf . | |
200 | If | |
201 | .I conf | |
202 | is a directory, then all of the files within | |
203 | whose names end with | |
204 | .RB ` .conf ', | |
205 | are loaded, in ascending lexicographical order; | |
206 | otherwise, | |
207 | .I conf | |
208 | is opened as a file. | |
af677646 | 209 | All of the files are expected to be as described in |
10427eb2 | 210 | .BR runlisp.conf (5). |
e29834b8 MW |
211 | . |
212 | .TP | |
05a9f820 MW |
213 | .BI "\-d" "\fR, " "\-\-dump-expression=" expr |
214 | Evaluate the expression(s) | |
215 | .I expr | |
216 | and print the resulting value(s) | |
217 | to standard output | |
d2dbcc6f MW |
218 | (with |
219 | .B *print-escape* | |
220 | true, as if by | |
05a9f820 MW |
221 | .BR prin1 ). |
222 | If a form produces multiple values, | |
223 | they are printed on a single line, | |
224 | separated by a single space character; | |
225 | if a form produces no values at all, | |
226 | then nothing is printed \(en not even a newline character. | |
227 | This option causes | |
228 | .B runlisp | |
229 | to execute in | |
230 | .I eval | |
231 | mode. | |
d2dbcc6f MW |
232 | See also |
233 | .RB ` \-p ', | |
234 | which prints with | |
235 | .B *print-escape* | |
236 | false. | |
05a9f820 MW |
237 | . |
238 | .TP | |
10427eb2 | 239 | .BI "\-e" "\fR, " "\-\-evaluate-expression=" expr |
e29834b8 MW |
240 | Evaluate the expression(s) |
241 | .I expr | |
242 | and discard the resulting values. | |
243 | This option causes | |
244 | .B runlisp | |
245 | to execute in | |
246 | .I eval | |
247 | mode. | |
248 | . | |
249 | .TP | |
10427eb2 | 250 | .BI "\-l" "\fR, " "\-\-load-file=" file |
e29834b8 MW |
251 | Read and evaluate forms from the |
252 | .IR file . | |
253 | This option causes | |
254 | .B runlisp | |
255 | to execute in | |
256 | .I eval | |
257 | mode. | |
258 | . | |
259 | .TP | |
bf52b6ca | 260 | .BR "\-n" ", " "\-\-dry-run" |
e29834b8 MW |
261 | Don't actually start the Lisp environment. |
262 | This may be helpful for the curious, | |
263 | in conjunction with | |
264 | .RB ` \-v ' | |
265 | to increase the verbosity. | |
10427eb2 MW |
266 | Negate with |
267 | .B +n | |
268 | or | |
269 | .BR "\-\-no-dry-run" . | |
e29834b8 MW |
270 | . |
271 | .TP | |
497e5a4a MW |
272 | .BI "\-o" "\fR, " "\-\-set-option=\fR[" sect :\fR] var = value |
273 | Assign | |
274 | .I value | |
275 | to the variable | |
276 | .I var | |
277 | in configuration section | |
278 | .IR sect , | |
279 | or | |
280 | .B @CONFIG | |
281 | if no section is specified. | |
282 | The value is unexpandable, | |
283 | and overrides any similarly named setting | |
284 | from the configuration file(s). | |
285 | . | |
286 | .TP | |
d2dbcc6f MW |
287 | .BI "\-p" "\fR, " "\-\-print-expression=" expr |
288 | Evaluate the expression(s) | |
289 | .I expr | |
290 | and print the resulting value(s) | |
291 | to standard output | |
292 | (with | |
293 | .B *print-escape* | |
294 | false, as if by | |
295 | .BR princ ). | |
296 | If a form produces multiple values, | |
297 | they are printed on a single line, | |
298 | separated by a single space character; | |
299 | if a form produces no values at all, | |
300 | then nothing is printed \(en not even a newline character. | |
301 | This option causes | |
302 | .B runlisp | |
303 | to execute in | |
304 | .I eval | |
305 | mode. | |
306 | See also | |
307 | .RB ` \-d ', | |
308 | which prints with | |
309 | .B *print-escape* | |
310 | true. | |
311 | . | |
312 | .TP | |
10427eb2 | 313 | .BR "\-q" ", " "\-\-quiet" |
e29834b8 MW |
314 | Don't print warning messages. |
315 | This option may be repeated: | |
316 | each use reduces verbosity by one step, | |
317 | counteracting one | |
318 | .RB ` \-v ' | |
319 | option. | |
320 | The default verbosity level is 1, | |
321 | which prints only warning measages. | |
322 | . | |
323 | .TP | |
10427eb2 | 324 | .BR "\-v" ", " "\-\-verbose" |
e29834b8 MW |
325 | Print informational or debugging messages. |
326 | This option may be repeated: | |
327 | each use increases verbosity by one step, | |
328 | counteracting one | |
329 | .RB ` \-q ' | |
330 | option. | |
331 | The default verbosity level is 1, | |
332 | which prints only warning measages. | |
333 | Higher verbosity levels print informational and debugging messages. | |
334 | . | |
335 | .PP | |
336 | The | |
05a9f820 | 337 | .RB ` \-d ', |
e29834b8 | 338 | .RB ` \-e ', |
d2dbcc6f | 339 | .RB ` \-l ', |
e29834b8 | 340 | and |
d2dbcc6f | 341 | .RB ` \-p ' |
e29834b8 MW |
342 | options may only be given on the command-line itself, |
343 | not following a | |
d586960a | 344 | .RB ` @RUNLISP: ' |
10427eb2 | 345 | marker in a script. |
e29834b8 MW |
346 | These options may be given multiple times: |
347 | they will be processed in the order given. | |
348 | If any of these options is given, then no | |
349 | .I script | |
350 | name will be parsed; | |
351 | instead, use | |
352 | .RB ` \-l ' | |
353 | to load code from files. | |
354 | The | |
355 | .IR arguments , | |
ace01e71 | 356 | if any, |
e29834b8 MW |
357 | are still made available to the evaluated forms and loaded files. |
358 | . | |
359 | .SS "Operation" | |
360 | The | |
361 | .B runlisp | |
362 | program behaves as follows. | |
10427eb2 MW |
363 | . |
364 | .hP 1. | |
e29834b8 MW |
365 | The first thing it does is parse its command line. |
366 | Options must precede positional arguments, | |
367 | though the boundary may be marked explicitly using | |
368 | .RB ` \-\- ' | |
369 | if desired. | |
370 | If the command line contains any of | |
05a9f820 | 371 | .RB ` \-d ', |
e29834b8 | 372 | .RB ` \-e ', |
05a9f820 | 373 | .RB ` \-l ', |
d2dbcc6f MW |
374 | or |
375 | .RB ` \-p ', | |
e29834b8 MW |
376 | then |
377 | .B runlisp | |
378 | treats all of its positional arguments as | |
379 | .I arguments | |
380 | to provide to the given forms and files, | |
381 | and runs in | |
382 | .I eval | |
383 | mode; | |
384 | otherwise, the first positional argument becomes the | |
385 | .I script | |
386 | name, the remaining ones become | |
387 | .IR arguments , | |
388 | and | |
389 | .B runlisp | |
390 | runs in | |
391 | .I script | |
392 | mode. | |
10427eb2 | 393 | .hP 2. |
e29834b8 MW |
394 | In |
395 | .I script | |
396 | mode, | |
44ccabcb MW |
397 | and if the |
398 | .RB ` \-E ' | |
399 | option was not given, | |
e29834b8 MW |
400 | .B runlisp |
401 | reads the second line of the script file, | |
402 | and checks to see if it contains the string | |
403 | .RB ` @RUNLISP: '. | |
404 | If so, then the following text is parsed | |
405 | for | |
406 | .IR "embedded options" , | |
407 | as follows. | |
10427eb2 MW |
408 | .RS |
409 | .PP | |
e29834b8 MW |
410 | The text is split into words |
411 | separated by sequences of whitespace characters. | |
412 | Whitespace, | |
413 | and other special characters, | |
414 | can be included in a word by | |
415 | .I quoting | |
416 | or | |
417 | .IR escaping . | |
418 | Text between single quotes | |
eea3b0c7 | 419 | .BR ' \*(.. ' |
e29834b8 MW |
420 | is included literally, without any further interpretation; |
421 | text between double quotes | |
eea3b0c7 | 422 | .BR """" \*(.. """" |
e29834b8 MW |
423 | is treated literally, |
424 | except that escaping can still be used | |
425 | to escape (e.g.) double quotes and the escape character itself. | |
426 | Outside of single quotes, a backslash | |
427 | .RB ` \e ' | |
428 | causes the following character to be included in a word | |
429 | regardless of its usual meaning. | |
430 | (None of this allows a newline character | |
431 | to be included in a word: | |
432 | this is simply not possible.) | |
433 | A word which is | |
434 | .RB ` \-\- ' | |
435 | before processing quoting and escaping | |
436 | marks the end of embedded options. | |
437 | As a concession to Emacs users, | |
438 | if the sequence | |
439 | .RB ` \-*\- ' | |
440 | appears at the start of a word | |
441 | before processing quoting and escaping, | |
442 | then everything up to and including the next occurrence of | |
443 | .RB ` \-*\- ' | |
444 | is ignored. | |
10427eb2 | 445 | .PP |
e29834b8 MW |
446 | The resulting list of words |
447 | is processed as if it held further command-line options. | |
10427eb2 MW |
448 | Currently, only |
449 | .RB ` \-D ' | |
450 | and | |
451 | .RB ` \-L ' | |
452 | options are permitted in embedded option lists: | |
453 | .RB ` \-h ' | |
454 | and | |
455 | .RB ` \-v ' | |
456 | are clearly only useful in interactive use; | |
457 | setting | |
458 | .RB ` \-q ' | |
459 | or | |
460 | .RB ` \-v ' | |
461 | would just be annoying; | |
462 | setting | |
463 | .RB ` \-c ' | |
464 | or | |
465 | .RB ` \-o ' | |
466 | would override the user's command-line settings; | |
467 | it's clearly too late to set | |
468 | .RB ` \-E '; | |
469 | and | |
e29834b8 MW |
470 | .B runlisp |
471 | is now committed to | |
472 | .I script | |
10427eb2 | 473 | mode, so it's too late for |
05a9f820 | 474 | .RB ` \-d ', |
e29834b8 | 475 | .RB ` \-e ', |
d2dbcc6f | 476 | .RB ` \-l ', |
e29834b8 | 477 | and |
d2dbcc6f | 478 | .RB ` \-p ' |
10427eb2 MW |
479 | too. |
480 | .PP | |
e29834b8 MW |
481 | (This feature allows scripts to provide options even if they use |
482 | .BR env (1) | |
483 | to find | |
484 | .B runlisp | |
485 | on the | |
486 | .BR PATH , | |
487 | or to provide more than one option, | |
488 | since many operating systems pass the text following | |
489 | the interpreter name on a | |
490 | .RB ` #! ' | |
491 | line as a single argument, without further splitting it at spaces.) | |
10427eb2 MW |
492 | .RE |
493 | . | |
494 | .hP 3. | |
495 | If no | |
496 | .RB ` \-c ' | |
497 | options were given, | |
498 | then the default configuration files are read: | |
499 | the system configuration from | |
500 | .B @etcdir@/runlisp.conf | |
e29834b8 | 501 | and |
10427eb2 MW |
502 | .BR @etcdir@/runlisp.d/*.conf , |
503 | and the user configuration from | |
504 | .B ~/.runlisp.conf | |
505 | and/or | |
506 | .BR ~/.config/runlisp.conf : | |
507 | see | |
508 | .RB runlisp.conf (5) | |
509 | for the details. | |
510 | . | |
511 | .hP 4. | |
e29834b8 MW |
512 | The list of |
513 | .I "acceptable Lisp implementations" | |
514 | is determined. | |
515 | If any | |
516 | .RB ` \-L ' | |
10427eb2 | 517 | options have been found, |
e29834b8 MW |
518 | then the list of acceptable implementations |
519 | consists of all of the implementations mentioned in | |
bf52b6ca | 520 | .RB ` \-L ' |
e29834b8 MW |
521 | options |
522 | in any of the places | |
523 | .B runlisp | |
524 | looked for options, | |
525 | in the order of their first occurrence. | |
526 | (If an implementation is named more than once, | |
527 | then | |
528 | .B runlisp | |
529 | prints a warning to stderr | |
530 | and ignores all but the first occurrence.) | |
531 | If no | |
532 | .RB ` \-L ' | |
533 | option is given, then | |
534 | .B runlisp | |
535 | uses a default list, | |
10427eb2 MW |
536 | which consists of all of the Lisp implementations |
537 | defined in its configuration, | |
538 | in the order in which they were defined. | |
539 | . | |
540 | .hP 5. | |
e29834b8 MW |
541 | The list of |
542 | .I "preferred Lisp implementations" | |
543 | is determined. | |
10427eb2 MW |
544 | If the environment variable |
545 | .B RUNLISP_PREFER | |
546 | is set, | |
547 | then its value should be a list of names of Lisp implementations | |
548 | separated by a comma and/or one or more whitespace characters. | |
549 | Otherwise, if there is a setting for the variable | |
550 | .B prefer | |
551 | in the | |
552 | .B @CONFIG | |
553 | configuration section, | |
554 | then its (expanded) value should be a list of Lisp implementations, | |
555 | in the same way. | |
556 | Otherwise, the list of preferred implementations is empty. | |
557 | . | |
558 | .hP 6. | |
559 | If | |
e29834b8 | 560 | .B runlisp |
10427eb2 MW |
561 | is running in |
562 | .I eval | |
563 | mode, then a new command line is built, | |
564 | which invokes an internal script, | |
565 | instructing it to evaluate and print the requested expressions, | |
566 | and load the requested files. | |
567 | . | |
568 | .hP 7. | |
e29834b8 MW |
569 | Acceptable Lisp implementations are tried in turn. |
570 | First, the preferred implementations | |
571 | which are also listed as acceptable implementations | |
572 | are tried, in the order in which they appear | |
573 | in the preferred implementations list; | |
574 | then, the remaining acceptable implementations are tried | |
575 | in the order in which they appear | |
576 | in the acceptable implementations list. | |
10427eb2 MW |
577 | .RS |
578 | .PP | |
579 | A Lisp implementation is defined by a configuration section | |
580 | which defines a variable | |
581 | .BR run-script . | |
582 | The name of the configuration section | |
583 | is the name of the Lisp implementation, | |
584 | as used in the acceptable and preferred lists described above. | |
585 | .hP (a) | |
586 | The variable | |
587 | .B image-file | |
588 | is looked up in the configuration section. | |
589 | If a value is found, then | |
590 | .B runlisp | |
591 | looks up and expands | |
592 | .BR image-path , | |
593 | and checks to see if a file exists with the resulting name. | |
594 | If so, it sets the variable | |
595 | .B @image | |
596 | to | |
597 | .B t | |
598 | in the configuration section. | |
599 | .hP (b) | |
600 | The variable | |
601 | .B run-script | |
602 | is expanded and word-split. | |
603 | The | |
604 | .I script | |
605 | (an internal script, in | |
606 | .I eval | |
607 | mode) | |
608 | and | |
609 | .IR argument s | |
610 | are appended, and | |
611 | the entire list is passed to the | |
e29834b8 MW |
612 | .BR execvp (3) |
613 | function. | |
614 | If that succeeds, the Lisp implementation runs; | |
615 | if it fails with | |
616 | .B ENOENT | |
617 | then other Lisp systems are tried; | |
618 | if it fails with some other error, then | |
619 | .B runlisp | |
620 | reports an error message to stderr | |
621 | and exits unsuccessfully | |
622 | (with code 127). | |
623 | If the | |
624 | .RB ` \-n ' | |
625 | option was given, then | |
626 | .B runlisp | |
627 | just simulates the behaviour of | |
628 | .BR execvp (3), | |
629 | printing messages to stderr | |
630 | if the verbosity level is sufficiently high, | |
631 | and exits. | |
e29834b8 MW |
632 | . |
633 | .SS "Script environment" | |
10427eb2 MW |
634 | Many Lisp implementations don't provide a satisfactory environment |
635 | for scripts to run in. | |
636 | The actual task of invoking a Lisp implementation | |
637 | is left to configuration, | |
638 | but the basic configuration supplied with | |
e29834b8 | 639 | .B runlisp |
10427eb2 | 640 | ensures the following facts about their environment. |
e29834b8 MW |
641 | .hP \*o |
642 | The keyword | |
643 | .B :runlisp-script | |
644 | is added to the | |
645 | .B *features* | |
646 | list if | |
647 | .B runlisp | |
648 | is running in | |
649 | .I script | |
650 | mode. | |
651 | .hP \*o | |
652 | Most Lisp systems support a user initialization file | |
653 | which they load before entering the REPL; | |
654 | some also have a system initialization file. | |
655 | The | |
656 | .B runlisp | |
657 | program arranges | |
658 | .I not | |
659 | to read these files, | |
660 | so that the Lisp environment is reasonably predictable, | |
661 | and to avoid slowing down script startup | |
662 | with things which are convenient for use in an interactive session, | |
663 | but can't be relied upon by a script anyway. | |
664 | .hP \*o | |
665 | The Unix standard input, standard output, and standard error files | |
666 | are available through the Lisp | |
667 | .BR *standard-input* , | |
668 | .BR *standard-output* , | |
669 | and | |
670 | .BR *error-output* | |
671 | streams, respectively. | |
672 | .hP \*o | |
673 | Both | |
674 | .B *compile-verbose* | |
675 | and | |
676 | .B *load-verbose* | |
677 | are set to nil. | |
678 | On CMU\ CL, | |
679 | .B ext:*require-verbose* | |
680 | is also nil. | |
681 | Alas, this is insufficient to muffle noise while loading add-on systems | |
682 | on some implementations. | |
683 | .hP \*o | |
684 | If an error is signalled, and not caught by user code, | |
685 | then the process will print a message to stderr | |
686 | and exit with a nonzero status. | |
687 | The reported message may be a long, ugly backtrace, | |
688 | or a terse error report. | |
689 | If no error is signalled but not caught, | |
690 | then the process will exit with status 0. | |
691 | .hP \*o | |
692 | The initial package is | |
693 | .BR COMMON-LISP-USER , | |
694 | which has no symbols `present' (i.e., imported or interned). | |
695 | .hP \*o | |
696 | The | |
697 | .B asdf | |
698 | and | |
699 | .B uiop | |
700 | systems are already loaded. | |
701 | Further systems can be loaded using | |
702 | .B asdf:load-system | |
703 | as usual. | |
704 | The script name | |
705 | (which is only meaningful if | |
706 | .B runlisp | |
707 | is in | |
708 | .I script | |
709 | mode, obviously) | |
710 | and arguments are available through the | |
711 | .B uiop:argv0 | |
712 | function and | |
713 | .B uiop:*command-line-arguments* | |
714 | variable, respectively. | |
715 | . | |
716 | .\"-------------------------------------------------------------------------- | |
717 | . | |
8996f767 | 718 | .SH BUGS |
e29834b8 MW |
719 | .hP \*o |
720 | Loading ASDF systems is irritatingly noisy | |
721 | with some Lisp implementations. | |
722 | Suggestions for how to improve this are welcome. | |
723 | .hP \*o | |
724 | More Lisp implementations should be supported. | |
725 | I've supported the ones I have installed. | |
726 | I'm not willing to put a great deal of effort into supporting | |
727 | non-free Lisp implementations; | |
728 | but help supporting free Lisps is much appreciated. | |
729 | .hP \*o | |
730 | The protocol for passing the script name through to | |
731 | .B uiop | |
732 | (specifically, through the | |
733 | .B __CL_ARGV0 | |
734 | environment variable) | |
735 | is terribly fragile, | |
736 | but supporting | |
737 | .B uiop | |
738 | is obviously a better approach than introducing a | |
739 | .BR runlisp -specific | |
740 | interface to the same information. | |
741 | I don't know how to fix this: | |
742 | suggestions are welcome. | |
743 | . | |
8996f767 MW |
744 | .SH SEE ALSO |
745 | .BR dump-runlisp-image (1), | |
746 | .BR query-runlisp-config (1), | |
747 | .BR runlisp.conf (5). | |
e29834b8 | 748 | . |
8996f767 | 749 | .SH AUTHOR |
e29834b8 MW |
750 | Mark Wooding, <mdw@distorted.org.uk> |
751 | . | |
752 | .\"----- That's all, folks -------------------------------------------------- |