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1.5 ! kristaps 1: /* $Id: mdoc.c,v 1.4 2008/12/23 05:30:49 kristaps Exp $ */
1.1 kristaps 2: /*
3: * Copyright (c) 2008 Kristaps Dzonsons <kristaps@kth.se>
4: *
5: * Permission to use, copy, modify, and distribute this software for any
6: * purpose with or without fee is hereby granted, provided that the
7: * above copyright notice and this permission notice appear in all
8: * copies.
9: *
10: * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL
11: * WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED
12: * WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE
13: * AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
14: * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
15: * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
16: * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
17: * PERFORMANCE OF THIS SOFTWARE.
18: */
19: #include <assert.h>
20: #include <ctype.h>
21: #include <err.h>
22: #include <stdarg.h>
23: #include <stdlib.h>
24: #include <stdio.h>
25: #include <string.h>
26:
27: #include "private.h"
28:
29: const char *const __mdoc_macronames[MDOC_MAX] = {
30: "\\\"", "Dd", "Dt", "Os",
31: "Sh", "Ss", "Pp", "D1",
32: "Dl", "Bd", "Ed", "Bl",
33: "El", "It", "Ad", "An",
34: "Ar", "Cd", "Cm", "Dv",
35: "Er", "Ev", "Ex", "Fa",
36: "Fd", "Fl", "Fn", "Ft",
37: "Ic", "In", "Li", "Nd",
38: "Nm", "Op", "Ot", "Pa",
39: "Rv", "St", "Va", "Vt",
40: /* LINTED */
41: "Xr", "\%A", "\%B", "\%D",
42: /* LINTED */
43: "\%I", "\%J", "\%N", "\%O",
44: /* LINTED */
45: "\%P", "\%R", "\%T", "\%V",
46: "Ac", "Ao", "Aq", "At",
47: "Bc", "Bf", "Bo", "Bq",
48: "Bsx", "Bx", "Db", "Dc",
49: "Do", "Dq", "Ec", "Ef",
50: "Em", "Eo", "Fx", "Ms",
51: "No", "Ns", "Nx", "Ox",
52: "Pc", "Pf", "Po", "Pq",
53: "Qc", "Ql", "Qo", "Qq",
54: "Re", "Rs", "Sc", "So",
55: "Sq", "Sm", "Sx", "Sy",
56: "Tn", "Ux", "Xc", "Xo",
57: "Fo", "Fc", "Oo", "Oc",
58: "Bk", "Ek", "Bt", "Hf",
59: "Fr", "Ud",
60: };
61:
62: const char *const __mdoc_argnames[MDOC_ARG_MAX] = {
63: "split", "nosplit", "ragged",
64: "unfilled", "literal", "file",
65: "offset", "bullet", "dash",
66: "hyphen", "item", "enum",
67: "tag", "diag", "hang",
68: "ohang", "inset", "column",
69: "width", "compact", "std",
70: "p1003.1-88", "p1003.1-90", "p1003.1-96",
71: "p1003.1-2001", "p1003.1-2004", "p1003.1",
72: "p1003.1b", "p1003.1b-93", "p1003.1c-95",
73: "p1003.1g-2000", "p1003.2-92", "p1387.2-95",
74: "p1003.2", "p1387.2", "isoC-90",
75: "isoC-amd1", "isoC-tcor1", "isoC-tcor2",
76: "isoC-99", "ansiC", "ansiC-89",
77: "ansiC-99", "ieee754", "iso8802-3",
78: "xpg3", "xpg4", "xpg4.2",
79: "xpg4.3", "xbd5", "xcu5",
80: "xsh5", "xns5", "xns5.2d2.0",
81: "xcurses4.2", "susv2", "susv3",
82: "svid4", "filled", "words",
83: };
84:
85: const struct mdoc_macro __mdoc_macros[MDOC_MAX] = {
86: { NULL, 0 }, /* \" */
1.3 kristaps 87: { macro_prologue_ddate, 0 }, /* Dd */
88: { macro_prologue_dtitle, 0 }, /* Dt */
1.4 kristaps 89: { macro_prologue_os, 0 }, /* Os */
1.1 kristaps 90: { macro_scoped_implicit, 0 }, /* Sh */
91: { macro_scoped_implicit, 0 }, /* Ss */
1.5 ! kristaps 92: { macro_text, 0 }, /* Pp */
1.1 kristaps 93: { NULL, 0 }, /* D1 */
94: { NULL, 0 }, /* Dl */
1.5 ! kristaps 95: { macro_scoped_explicit, MDOC_EXPLICIT }, /* Bd */
! 96: { macro_scoped_explicit, 0 }, /* Ed */
1.4 kristaps 97: { macro_scoped_explicit, MDOC_EXPLICIT }, /* Bl */
98: { macro_scoped_explicit, 0 }, /* El */
1.1 kristaps 99: { NULL, 0 }, /* It */
100: { macro_text, MDOC_CALLABLE }, /* Ad */
101: { NULL, 0 }, /* An */
102: { macro_text, MDOC_CALLABLE }, /* Ar */
103: { NULL, 0 }, /* Cd */
104: { macro_text, MDOC_CALLABLE }, /* Cm */
105: { macro_text, MDOC_CALLABLE }, /* Dv */
106: { macro_text, MDOC_CALLABLE }, /* Er */
107: { macro_text, MDOC_CALLABLE }, /* Ev */
108: { NULL, 0 }, /* Ex */
109: { macro_text, MDOC_CALLABLE }, /* Fa */
110: { NULL, 0 }, /* Fd */
111: { macro_text, MDOC_CALLABLE }, /* Fl */
112: { NULL, 0 }, /* Fn */
113: { macro_text, 0 }, /* Ft */
114: { macro_text, MDOC_CALLABLE }, /* Ic */
115: { NULL, 0 }, /* In */
116: { macro_text, MDOC_CALLABLE }, /* Li */
117: { NULL, 0 }, /* Nd */
118: { NULL, 0 }, /* Nm */
119: { NULL, 0 }, /* Op */
120: { NULL, 0 }, /* Ot */
121: { macro_text, MDOC_CALLABLE }, /* Pa */
122: { NULL, 0 }, /* Rv */
123: { NULL, 0 }, /* St */
124: { macro_text, MDOC_CALLABLE }, /* Va */
125: { macro_text, MDOC_CALLABLE }, /* Vt */
126: { NULL, 0 }, /* Xr */
127: { NULL, 0 }, /* %A */
128: { NULL, 0 }, /* %B */
129: { NULL, 0 }, /* %D */
130: { NULL, 0 }, /* %I */
131: { NULL, 0 }, /* %J */
132: { NULL, 0 }, /* %N */
133: { NULL, 0 }, /* %O */
134: { NULL, 0 }, /* %P */
135: { NULL, 0 }, /* %R */
136: { NULL, 0 }, /* %T */
137: { NULL, 0 }, /* %V */
138: { NULL, 0 }, /* Ac */
139: { NULL, 0 }, /* Ao */
140: { NULL, 0 }, /* Aq */
141: { NULL, 0 }, /* At */
142: { NULL, 0 }, /* Bc */
143: { NULL, 0 }, /* Bf */
144: { NULL, 0 }, /* Bo */
145: { NULL, 0 }, /* Bq */
146: { NULL, 0 }, /* Bsx */
147: { NULL, 0 }, /* Bx */
148: { NULL, 0 }, /* Db */
149: { NULL, 0 }, /* Dc */
150: { NULL, 0 }, /* Do */
151: { NULL, 0 }, /* Dq */
152: { NULL, 0 }, /* Ec */
153: { NULL, 0 }, /* Ef */
154: { macro_text, MDOC_CALLABLE }, /* Em */
155: { NULL, 0 }, /* Eo */
156: { NULL, 0 }, /* Fx */
157: { macro_text, 0 }, /* Ms */
158: { NULL, 0 }, /* No */
159: { NULL, 0 }, /* Ns */
160: { NULL, 0 }, /* Nx */
161: { NULL, 0 }, /* Ox */
162: { NULL, 0 }, /* Pc */
163: { NULL, 0 }, /* Pf */
164: { NULL, 0 }, /* Po */
165: { NULL, 0 }, /* Pq */
166: { NULL, 0 }, /* Qc */
167: { NULL, 0 }, /* Ql */
168: { NULL, 0 }, /* Qo */
169: { NULL, 0 }, /* Qq */
170: { NULL, 0 }, /* Re */
171: { NULL, 0 }, /* Rs */
172: { NULL, 0 }, /* Sc */
173: { NULL, 0 }, /* So */
174: { NULL, 0 }, /* Sq */
175: { NULL, 0 }, /* Sm */
176: { NULL, 0 }, /* Sx */
177: { NULL, 0 }, /* Sy */
178: { macro_text, MDOC_CALLABLE }, /* Tn */
179: { NULL, 0 }, /* Ux */
180: { NULL, 0 }, /* Xc */
181: { NULL, 0 }, /* Xo */
182: { NULL, 0 }, /* Fo */
183: { NULL, 0 }, /* Fc */
184: { NULL, 0 }, /* Oo */
185: { NULL, 0 }, /* Oc */
186: { NULL, 0 }, /* Bk */
187: { NULL, 0 }, /* Ek */
188: { NULL, 0 }, /* Bt */
189: { NULL, 0 }, /* Hf */
190: { NULL, 0 }, /* Fr */
191: { NULL, 0 }, /* Ud */
192: };
193:
194: const char * const *mdoc_macronames = __mdoc_macronames;
195: const char * const *mdoc_argnames = __mdoc_argnames;
196: const struct mdoc_macro * const mdoc_macros = __mdoc_macros;
197:
198:
199: static struct mdoc_arg *argdup(size_t, const struct mdoc_arg *);
200: static void argfree(size_t, struct mdoc_arg *);
201: static void argcpy(struct mdoc_arg *,
202: const struct mdoc_arg *);
203: static char **paramdup(size_t, const char **);
204: static void paramfree(size_t, char **);
205:
206: static void mdoc_node_freelist(struct mdoc_node *);
207: static void mdoc_node_append(struct mdoc *, int,
208: struct mdoc_node *);
209: static void mdoc_elem_free(struct mdoc_elem *);
210: static void mdoc_text_free(struct mdoc_text *);
211:
212:
213: const struct mdoc_node *
214: mdoc_result(struct mdoc *mdoc)
215: {
216:
217: return(mdoc->first);
218: }
219:
220:
221: void
222: mdoc_free(struct mdoc *mdoc)
223: {
224:
225: if (mdoc->first)
226: mdoc_node_freelist(mdoc->first);
227: if (mdoc->htab)
1.4 kristaps 228: mdoc_tokhash_free(mdoc->htab);
1.1 kristaps 229:
230: free(mdoc);
231: }
232:
233:
234: struct mdoc *
235: mdoc_alloc(void *data, const struct mdoc_cb *cb)
236: {
237: struct mdoc *p;
238:
239: p = xcalloc(1, sizeof(struct mdoc));
240:
241: p->data = data;
242: (void)memcpy(&p->cb, cb, sizeof(struct mdoc_cb));
243:
1.4 kristaps 244: p->htab = mdoc_tokhash_alloc();
1.1 kristaps 245: return(p);
246: }
247:
248:
249: int
250: mdoc_parseln(struct mdoc *mdoc, char *buf)
251: {
252: int c, i;
253: char tmp[5];
254:
1.5 ! kristaps 255: if ('.' != *buf) {
! 256: mdoc_word_alloc(mdoc, 0, buf);
! 257: return(1);
1.1 kristaps 258: }
259:
260: if (buf[1] && '\\' == buf[1])
261: if (buf[2] && '\"' == buf[2])
262: return(1);
263:
264: i = 1;
265: while (buf[i] && ! isspace(buf[i]) && i < (int)sizeof(tmp))
266: i++;
267:
268: if (i == (int)sizeof(tmp))
269: return(mdoc_err(mdoc, -1, 1, ERR_MACRO_NOTSUP));
270: else if (i <= 2)
271: return(mdoc_err(mdoc, -1, 1, ERR_MACRO_NOTSUP));
272:
273: i--;
274:
1.2 kristaps 275: (void)memcpy(tmp, buf + 1, (size_t)i);
1.1 kristaps 276: tmp[i++] = 0;
277:
278: if (MDOC_MAX == (c = mdoc_find(mdoc, tmp)))
279: return(mdoc_err(mdoc, c, 1, ERR_MACRO_NOTSUP));
280:
281: while (buf[i] && isspace(buf[i]))
282: i++;
283:
1.3 kristaps 284: return(mdoc_macro(mdoc, c, 1, &i, buf));
1.1 kristaps 285: }
286:
287:
288: void
289: mdoc_msg(struct mdoc *mdoc, int pos, const char *fmt, ...)
290: {
291: va_list ap;
292: char buf[256];
293:
294: if (NULL == mdoc->cb.mdoc_msg)
295: return;
296:
297: va_start(ap, fmt);
298: (void)vsnprintf(buf, sizeof(buf), fmt, ap);
299: va_end(ap);
300:
301: (*mdoc->cb.mdoc_msg)(mdoc->data, pos, buf);
302: }
303:
304:
305: int
306: mdoc_err(struct mdoc *mdoc, int tok, int pos, enum mdoc_err type)
307: {
308:
309: if (NULL == mdoc->cb.mdoc_err)
310: return(0);
311: return((*mdoc->cb.mdoc_err)(mdoc->data, tok, pos, type));
312: }
313:
314:
315: int
316: mdoc_warn(struct mdoc *mdoc, int tok, int pos, enum mdoc_warn type)
317: {
318:
319: if (NULL == mdoc->cb.mdoc_warn)
320: return(0);
321: return((*mdoc->cb.mdoc_warn)(mdoc->data, tok, pos, type));
322: }
323:
324:
325: int
326: mdoc_macro(struct mdoc *mdoc, int tok, int ppos, int *pos, char *buf)
327: {
328:
329: if (NULL == (mdoc_macros[tok].fp)) {
330: (void)mdoc_err(mdoc, tok, ppos, ERR_MACRO_NOTSUP);
331: return(0);
1.3 kristaps 332: }
333:
334: if (1 != ppos && ! (MDOC_CALLABLE & mdoc_macros[tok].flags)) {
1.1 kristaps 335: (void)mdoc_err(mdoc, tok, ppos, ERR_MACRO_NOTCALL);
336: return(0);
337: }
338:
339: return((*mdoc_macros[tok].fp)(mdoc, tok, ppos, pos, buf));
340: }
341:
342:
343: static void
344: mdoc_node_append(struct mdoc *mdoc, int pos, struct mdoc_node *p)
345: {
346: const char *nn, *on, *nt, *ot, *act;
347:
348: switch (p->type) {
349: case (MDOC_TEXT):
1.5 ! kristaps 350: nn = p->data.text.string;
1.1 kristaps 351: nt = "text";
352: break;
353: case (MDOC_BODY):
354: nn = mdoc_macronames[p->data.body.tok];
355: nt = "body";
356: break;
357: case (MDOC_ELEM):
358: nn = mdoc_macronames[p->data.elem.tok];
359: nt = "elem";
360: break;
361: case (MDOC_HEAD):
362: nn = mdoc_macronames[p->data.head.tok];
363: nt = "head";
364: break;
365: case (MDOC_BLOCK):
366: nn = mdoc_macronames[p->data.block.tok];
367: nt = "block";
368: break;
1.2 kristaps 369: default:
370: abort();
371: /* NOTREACHED */
1.1 kristaps 372: }
373:
374: if (NULL == mdoc->first) {
375: assert(NULL == mdoc->last);
376: mdoc->first = p;
377: mdoc->last = p;
378: mdoc_msg(mdoc, pos, "parse: root %s `%s'", nt, nn);
379: return;
380: }
381:
382: switch (mdoc->last->type) {
383: case (MDOC_TEXT):
384: on = "<text>";
385: ot = "text";
386: break;
387: case (MDOC_BODY):
388: on = mdoc_macronames[mdoc->last->data.body.tok];
389: ot = "body";
390: break;
391: case (MDOC_ELEM):
392: on = mdoc_macronames[mdoc->last->data.elem.tok];
393: ot = "elem";
394: break;
395: case (MDOC_HEAD):
396: on = mdoc_macronames[mdoc->last->data.head.tok];
397: ot = "head";
398: break;
399: case (MDOC_BLOCK):
400: on = mdoc_macronames[mdoc->last->data.block.tok];
401: ot = "block";
402: break;
1.2 kristaps 403: default:
404: abort();
405: /* NOTREACHED */
1.1 kristaps 406: }
407:
408: switch (p->type) {
409: case (MDOC_BODY):
410: switch (mdoc->last->type) {
411: case (MDOC_BLOCK):
412: p->parent = mdoc->last;
413: mdoc->last->child = p;
414: act = "child";
415: break;
416: case (MDOC_HEAD):
417: p->parent = mdoc->last->parent;
418: mdoc->last->next = p;
1.5 ! kristaps 419: p->prev = mdoc->last;
1.1 kristaps 420: act = "sibling";
421: break;
422: default:
423: abort();
424: /* NOTREACHED */
425: }
426: break;
427: case (MDOC_HEAD):
428: assert(mdoc->last->type == MDOC_BLOCK);
429: p->parent = mdoc->last;
430: mdoc->last->child = p;
431: act = "child";
432: break;
433: default:
434: switch (mdoc->last->type) {
435: case (MDOC_BODY):
436: /* FALLTHROUGH */
437: case (MDOC_HEAD):
438: p->parent = mdoc->last->parent;
439: mdoc->last->child = p;
440: act = "child";
441: break;
442: default:
443: p->parent = mdoc->last->parent;
1.5 ! kristaps 444: p->prev = mdoc->last;
1.1 kristaps 445: mdoc->last->next = p;
446: act = "sibling";
447: break;
448: }
449: break;
450: }
451:
452: mdoc_msg(mdoc, pos, "parse: %s `%s' %s %s `%s'",
453: nt, nn, act, ot, on);
454: mdoc->last = p;
455: }
456:
457:
458: void
459: mdoc_head_alloc(struct mdoc *mdoc, int pos, int tok,
460: size_t paramsz, const char **params)
461: {
462: struct mdoc_node *p;
463:
464: assert(mdoc->first);
465: assert(mdoc->last);
466: assert(mdoc->last->type == MDOC_BLOCK);
467: assert(mdoc->last->data.block.tok == tok);
468:
469: p = xcalloc(1, sizeof(struct mdoc_node));
470: p->type = MDOC_HEAD;
471: p->data.head.tok = tok;
472: p->data.head.sz = paramsz;
473: p->data.head.args = paramdup(paramsz, params);
474:
475: mdoc_node_append(mdoc, pos, p);
476: }
477:
478:
479: void
480: mdoc_body_alloc(struct mdoc *mdoc, int pos, int tok)
481: {
482: struct mdoc_node *p;
483:
484: assert(mdoc->first);
485: assert(mdoc->last);
486: assert((mdoc->last->type == MDOC_BLOCK) ||
487: (mdoc->last->type == MDOC_HEAD));
488: if (mdoc->last->type == MDOC_BLOCK)
489: assert(mdoc->last->data.block.tok == tok);
490: else
491: assert(mdoc->last->data.head.tok == tok);
492:
493: p = xcalloc(1, sizeof(struct mdoc_node));
494:
495: p->type = MDOC_BODY;
496: p->data.body.tok = tok;
497:
498: mdoc_node_append(mdoc, pos, p);
499: }
500:
501:
502: void
503: mdoc_block_alloc(struct mdoc *mdoc, int pos, int tok,
504: size_t argsz, const struct mdoc_arg *args)
505: {
506: struct mdoc_node *p;
507:
508: p = xcalloc(1, sizeof(struct mdoc_node));
509:
510: p->type = MDOC_BLOCK;
511: p->data.block.tok = tok;
512: p->data.block.argc = argsz;
513: p->data.block.argv = argdup(argsz, args);
514:
515: mdoc_node_append(mdoc, pos, p);
516: }
517:
518:
519: void
520: mdoc_elem_alloc(struct mdoc *mdoc, int pos, int tok,
521: size_t argsz, const struct mdoc_arg *args,
522: size_t paramsz, const char **params)
523: {
524: struct mdoc_node *p;
525:
526: p = xcalloc(1, sizeof(struct mdoc_node));
527: p->type = MDOC_ELEM;
528: p->data.elem.tok = tok;
529: p->data.elem.sz = paramsz;
530: p->data.elem.args = paramdup(paramsz, params);
531: p->data.elem.argc = argsz;
532: p->data.elem.argv = argdup(argsz, args);
533:
534: mdoc_node_append(mdoc, pos, p);
535: }
536:
537:
538: void
539: mdoc_word_alloc(struct mdoc *mdoc, int pos, const char *word)
540: {
541: struct mdoc_node *p;
542:
543: p = xcalloc(1, sizeof(struct mdoc_node));
544: p->type = MDOC_TEXT;
545: p->data.text.string = xstrdup(word);
546:
547: mdoc_node_append(mdoc, pos, p);
548: }
549:
550:
551: static void
552: argfree(size_t sz, struct mdoc_arg *p)
553: {
1.2 kristaps 554: int i, j;
1.1 kristaps 555:
556: if (0 == sz)
557: return;
558:
559: assert(p);
1.2 kristaps 560: /* LINTED */
561: for (i = 0; i < (int)sz; i++)
1.1 kristaps 562: if (p[i].sz > 0) {
563: assert(p[i].value);
1.2 kristaps 564: /* LINTED */
565: for (j = 0; j < (int)p[i].sz; j++)
1.1 kristaps 566: free(p[i].value[j]);
567: }
568: free(p);
569: }
570:
571:
572: static void
573: mdoc_elem_free(struct mdoc_elem *p)
574: {
575:
576: paramfree(p->sz, p->args);
577: argfree(p->argc, p->argv);
578: }
579:
580:
581: static void
582: mdoc_block_free(struct mdoc_block *p)
583: {
584:
585: argfree(p->argc, p->argv);
586: }
587:
588:
589: static void
590: mdoc_text_free(struct mdoc_text *p)
591: {
592:
593: if (p->string)
594: free(p->string);
595: }
596:
597:
598: static void
599: mdoc_head_free(struct mdoc_head *p)
600: {
601:
602: paramfree(p->sz, p->args);
603: }
604:
605:
606: void
607: mdoc_node_free(struct mdoc_node *p)
608: {
609:
610: switch (p->type) {
611: case (MDOC_TEXT):
612: mdoc_text_free(&p->data.text);
613: break;
614: case (MDOC_ELEM):
615: mdoc_elem_free(&p->data.elem);
616: break;
617: case (MDOC_BLOCK):
618: mdoc_block_free(&p->data.block);
619: break;
620: case (MDOC_HEAD):
621: mdoc_head_free(&p->data.head);
622: break;
623: default:
624: break;
625: }
626:
627: free(p);
628: }
629:
630:
631: static void
632: mdoc_node_freelist(struct mdoc_node *p)
633: {
634:
635: if (p->child)
636: mdoc_node_freelist(p->child);
637: if (p->next)
638: mdoc_node_freelist(p->next);
639:
640: mdoc_node_free(p);
641: }
642:
643:
644: int
645: mdoc_find(const struct mdoc *mdoc, const char *key)
646: {
647:
1.4 kristaps 648: return(mdoc_tokhash_find(mdoc->htab, key));
1.1 kristaps 649: }
650:
651:
652: static void
653: argcpy(struct mdoc_arg *dst, const struct mdoc_arg *src)
654: {
1.2 kristaps 655: int i;
1.1 kristaps 656:
657: dst->arg = src->arg;
658: if (0 == (dst->sz = src->sz))
659: return;
660: dst->value = xcalloc(dst->sz, sizeof(char *));
1.2 kristaps 661: for (i = 0; i < (int)dst->sz; i++)
1.1 kristaps 662: dst->value[i] = xstrdup(src->value[i]);
663: }
664:
665:
666: static struct mdoc_arg *
667: argdup(size_t argsz, const struct mdoc_arg *args)
668: {
669: struct mdoc_arg *pp;
1.2 kristaps 670: int i;
1.1 kristaps 671:
672: if (0 == argsz)
673: return(NULL);
674:
675: pp = xcalloc((size_t)argsz, sizeof(struct mdoc_arg));
1.2 kristaps 676: for (i = 0; i < (int)argsz; i++)
1.1 kristaps 677: argcpy(&pp[i], &args[i]);
678:
679: return(pp);
680: }
681:
682:
683: static void
684: paramfree(size_t sz, char **p)
685: {
1.2 kristaps 686: int i;
1.1 kristaps 687:
688: if (0 == sz)
689: return;
690:
691: assert(p);
1.2 kristaps 692: /* LINTED */
693: for (i = 0; i < (int)sz; i++)
1.1 kristaps 694: free(p[i]);
695: free(p);
696: }
697:
698:
699: static char **
700: paramdup(size_t sz, const char **p)
701: {
702: char **pp;
1.2 kristaps 703: int i;
1.1 kristaps 704:
705: if (0 == sz)
706: return(NULL);
707:
708: pp = xcalloc(sz, sizeof(char *));
1.2 kristaps 709: for (i = 0; i < (int)sz; i++)
1.1 kristaps 710: pp[i] = xstrdup(p[i]);
711:
712: return(pp);
713: }