Annotation of docbook2mdoc/statistics.c, Revision 1.33
1.33 ! schwarze 1: /* $Id: statistics.c,v 1.32 2019/04/14 22:37:56 schwarze Exp $ */
1.1 schwarze 2: /*
3: * Copyright (c) 2019 Ingo Schwarze <schwarze@openbsd.org>
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 above
7: * copyright notice and this permission notice appear in all copies.
8: *
9: * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHORS DISCLAIM ALL WARRANTIES
10: * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
11: * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR
12: * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
13: * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
14: * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
15: * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
16: */
17: #include <assert.h>
18: #include <ctype.h>
19: #include <err.h>
20: #include <fcntl.h>
1.2 schwarze 21: #include <getopt.h>
1.1 schwarze 22: #include <stdio.h>
23: #include <stdlib.h>
24: #include <string.h>
25: #include <unistd.h>
26:
27: /*
28: * Count parent-child element relations in a corpus of DocBook documents.
29: *
30: * Read absolute or relative input file names from standard input,
31: * one per line.
32: * For each parent-child relation, print the total number of occurrences,
33: * the parent name, and the child name, separated by tab characters
34: * and followed by a newline character.
35: *
36: * Typical usage:
37: * statistics < filenames.txt | sort -n
38: * statistics < filenames.txt | grep '\<listitem\>' | sort -n
1.4 schwarze 39: *
40: * Relations already fully implemented are excluded by default.
41: * The option -a shows all relations.
42: *
43: * If two arguments (parent and child) are given, a histogram
44: * of the number of children of the kind in each parent is given
45: * in addition to the normal output.
46: *
47: * Example usage:
48: * statistics tgroup colspec < filenames.txt | grep colspec
1.25 schwarze 49: *
50: * Synchronized with parse.c up to rev. 1.42.
1.1 schwarze 51: */
52:
53: struct entry {
54: char *parent;
55: char *child;
56: int count;
57: };
58:
59: static struct entry *table;
60: static size_t tablesz;
61: static size_t tablei;
62:
63: static char **stack;
64: static size_t stacksz;
65: static size_t stacki;
66:
1.4 schwarze 67: static const int nchildsz = 8;
68: struct nchild {
69: char *parent;
70: char *child;
71: int freq[nchildsz];
72: int count;
73: };
74:
75: static struct nchild nchild;
76: static char *fname;
77:
1.1 schwarze 78:
79: /*
80: * Count one instance of a parent-child relation.
1.2 schwarze 81: * Before the special call table_add(NULL, NULL),
82: * mark relations to not be counted;
83: * in that phase, child can be NULL as a wildcard.
1.1 schwarze 84: */
85: static void
86: table_add(const char *parent, const char *child)
87: {
1.2 schwarze 88: static int init_done;
89: size_t i;
90:
91: if (parent == NULL && child == NULL) {
92: init_done = 1;
93: return;
94: }
1.1 schwarze 95:
1.4 schwarze 96: /* Optional parent-child histogram. */
97:
98: if (init_done && parent != NULL && child != NULL &&
99: nchild.parent != NULL && nchild.child != NULL &&
100: strcmp(parent, nchild.parent) == 0 &&
101: strcmp(child, nchild.child) == 0) {
102: if (nchild.count < nchildsz) {
103: nchild.freq[nchild.count]++;
104: if (nchild.count > 0)
105: nchild.freq[nchild.count - 1]--;
106: } else if (nchild.count == nchildsz)
107: puts(fname);
108: nchild.count++;
109: }
110:
1.1 schwarze 111: /* If the table entry already exists, increment its count. */
112:
113: for (i = 0; i < tablei; i++) {
114: if (strcmp(parent, table[i].parent) == 0 &&
1.2 schwarze 115: (child == NULL || table[i].child == NULL ||
116: strcmp(child, table[i].child) == 0)) {
117: assert(init_done);
118: if (table[i].count != -1)
119: table[i].count++;
1.1 schwarze 120: return;
121: }
122: }
123:
124: /* If the table is full, make room. */
125:
126: if (tablei == tablesz) {
127: tablesz += 64;
128: table = reallocarray(table, tablesz, sizeof(*table));
129: if (table == NULL)
130: err(1, NULL);
131: }
132:
133: /* Add a new entry to the table. */
134:
135: if ((table[tablei].parent = strdup(parent)) == NULL)
136: err(1, NULL);
1.2 schwarze 137: if (child == NULL)
138: table[tablei].child = NULL;
139: else if ((table[tablei].child = strdup(child)) == NULL)
1.1 schwarze 140: err(1, NULL);
1.2 schwarze 141: table[tablei++].count = init_done ? 1 : -1;
1.1 schwarze 142: }
143:
144: /*
145: * Enter an element.
146: */
147: static void
148: stack_push(const char *name)
149: {
1.4 schwarze 150: if (nchild.parent != NULL && strcmp(name, nchild.parent) == 0)
151: nchild.count = 0;
152:
1.1 schwarze 153: if (stacki == stacksz) {
154: stacksz += 8;
155: stack = reallocarray(stack, stacksz, sizeof(*stack));
156: if (stack == NULL)
157: err(1, NULL);
158: }
159: if ((stack[stacki++] = strdup(name)) == NULL)
160: err(1, NULL);
161: }
162:
163: /*
164: * Exit an element.
165: */
166: static void
167: stack_pop(const char *name)
168: {
169: if (stacki > 0 && (name == NULL ||
170: strcmp(name, stack[stacki - 1]) == 0))
171: free(stack[--stacki]);
172: }
173:
174: /*
175: * Simplified version from parse.c.
176: */
177: static int
178: advance(char *b, size_t rlen, size_t *pend, const char *charset)
179: {
180: int space;
181:
182: if (*charset == ' ') {
183: space = 1;
184: charset++;
185: } else
186: space = 0;
187:
188: while (*pend < rlen) {
189: if (space && isspace((unsigned char)b[*pend]))
190: break;
191: if (strchr(charset, b[*pend]) != NULL)
192: break;
193: ++*pend;
194: }
195: if (*pend == rlen) {
196: b[rlen] = '\0';
197: return 1;
198: } else
199: return 0;
200: }
201:
202: /*
203: * Simplified version from parse.c.
204: */
205: static void
206: parse_file(int fd, char *fname)
207: {
208: char b[4096];
1.3 schwarze 209: char *cp;
1.1 schwarze 210: ssize_t rsz; /* Return value from read(2). */
211: size_t rlen; /* Number of bytes in b[]. */
212: size_t poff; /* Parse offset in b[]. */
213: size_t pend; /* Offset of the end of the current word. */
1.26 schwarze 214: int in_tag, in_arg, in_quotes, in_doctype, elem_end;
1.1 schwarze 215:
216: rlen = 0;
1.26 schwarze 217: in_tag = in_arg = in_quotes = in_doctype = 0;
1.1 schwarze 218: while ((rsz = read(fd, b + rlen, sizeof(b) - rlen - 1)) >= 0) {
219: if ((rlen += rsz) == 0)
220: break;
221: pend = 0;
222: for (;;) {
223: if ((poff = pend) == rlen)
224: break;
225: if (isspace((unsigned char)b[pend])) {
226: pend++;
227: continue;
228: }
229: if (in_arg) {
1.5 schwarze 230: if (in_quotes == 0 &&
231: (b[pend] == '\'' || b[pend] == '"')) {
232: in_quotes = b[pend] == '"' ? 2 : 1;
1.1 schwarze 233: pend++;
234: continue;
235: }
236: if (advance(b, rlen, &pend,
1.5 schwarze 237: in_quotes == 2 ? "\"" :
238: in_quotes == 1 ? "'" : " >") && rsz > 0)
1.1 schwarze 239: break;
240: in_arg = in_quotes = elem_end = 0;
241: if (b[pend] == '>') {
242: in_tag = 0;
243: if (pend > 0 && b[pend - 1] == '/') {
244: b[pend - 1] = '\0';
245: elem_end = 1;
246: }
247: }
248: b[pend] = '\0';
249: if (pend < rlen)
250: pend++;
251: if (elem_end)
252: stack_pop(NULL);
253: } else if (in_tag) {
1.26 schwarze 254: if (in_doctype && b[pend] == '[') {
255: in_tag = in_doctype = 0;
256: pend++;
257: continue;
258: }
1.1 schwarze 259: if (advance(b, rlen, &pend, " =>") && rsz > 0)
260: break;
261: elem_end = 0;
262: switch (b[pend]) {
263: case '>':
264: in_tag = 0;
265: if (pend > 0 && b[pend - 1] == '/') {
266: b[pend - 1] = '\0';
267: elem_end = 1;
268: }
269: break;
270: case '=':
271: in_arg = 1;
272: break;
273: default:
274: break;
275: }
276: b[pend] = '\0';
277: if (pend < rlen)
278: pend++;
279: if (elem_end)
280: stack_pop(NULL);
281: } else if (b[poff] == '<') {
282: if (advance(b, rlen, &pend, " >") && rsz > 0)
283: break;
1.3 schwarze 284: if (pend > poff + 3 &&
285: strncmp(b + poff, "<!--", 4) == 0) {
286: /* Skip a comment. */
287: cp = strstr(b + pend - 2, "-->");
288: if (cp == NULL) {
289: pend = rlen;
290: if (rsz > 0)
291: break;
292: } else
293: pend = cp + 3 - b;
294: continue;
295: }
1.1 schwarze 296: elem_end = 0;
297: if (b[pend] != '>')
298: in_tag = 1;
299: else if (pend > 0 && b[pend - 1] == '/') {
300: b[pend - 1] = '\0';
301: elem_end = 1;
302: }
303: b[pend] = '\0';
304: if (pend < rlen)
305: pend++;
306: if (b[++poff] == '/') {
307: elem_end = 1;
308: poff++;
1.26 schwarze 309: } else if (strcasecmp(b + poff,
310: "!DOCTYPE") == 0) {
311: in_doctype = 1;
1.1 schwarze 312: } else if (b[poff] != '!' && b[poff] != '?') {
313: table_add(stacki > 0 ?
1.2 schwarze 314: stack[stacki - 1] : "ROOT",
1.1 schwarze 315: b + poff);
316: stack_push(b + poff);
1.25 schwarze 317: if (strcmp(b + poff, "sbr") == 0)
318: elem_end = 1;
1.1 schwarze 319: }
320: if (elem_end)
321: stack_pop(b + poff);
322: } else {
323: advance(b, rlen, &pend, "<");
324: if (stacki > 0)
325: table_add(stack[stacki - 1], "TEXT");
326: }
327: }
328: assert(poff > 0);
329: rlen -= poff;
1.25 schwarze 330: memmove(b, b + poff, rlen);
1.1 schwarze 331: }
332: if (rsz < 0)
333: perror(fname);
334: }
335:
336: int
337: main(int argc, char *argv[])
338: {
339: size_t fsz, i;
340: ssize_t rsz;
1.2 schwarze 341: int ch, fd, show_all;
342:
343: show_all = 0;
344: while ((ch = getopt(argc, argv, "a")) != -1) {
345: switch (ch) {
346: case 'a':
347: show_all = 1;
348: break;
349: default:
350: return 1;
351: }
352: }
1.4 schwarze 353: argc -= optind;
354: argv += optind;
355:
356: if (argc > 1) {
357: nchild.parent = argv[0];
358: nchild.child = argv[1];
359: }
1.1 schwarze 360:
1.2 schwarze 361: /* Exclude relations that are already fully implemented. */
362: if (show_all == 0) {
1.33 ! schwarze 363: table_add("ROOT", "appendix");
1.27 schwarze 364: table_add("ROOT", "article");
365: table_add("ROOT", "book");
366: table_add("ROOT", "chapter");
1.33 ! schwarze 367: table_add("ROOT", "glossary");
! 368: table_add("ROOT", "part");
! 369: table_add("ROOT", "preface");
1.11 schwarze 370: table_add("ROOT", "refentry");
1.33 ! schwarze 371: table_add("ROOT", "sect1");
! 372: table_add("ROOT", "sect2");
1.12 schwarze 373: table_add("acronym", "TEXT");
1.27 schwarze 374: table_add("affiliation", "orgdiv");
375: table_add("affiliation", "orgname");
1.18 schwarze 376: table_add("appendix", NULL);
1.24 schwarze 377: table_add("application", "TEXT");
378: table_add("arg", "option");
1.18 schwarze 379: table_add("article", NULL);
1.27 schwarze 380: table_add("articleinfo", "author");
381: table_add("articleinfo", "authorgroup");
382: table_add("articleinfo", "copyright");
1.24 schwarze 383: table_add("articleinfo", "date");
1.27 schwarze 384: table_add("articleinfo", "legalnotice");
1.21 schwarze 385: table_add("articleinfo", "pubdate");
1.27 schwarze 386: table_add("articleinfo", "releaseinfo");
387: table_add("articleinfo", "subtitle");
1.21 schwarze 388: table_add("articleinfo", "title");
1.27 schwarze 389: table_add("author", "affiliation");
1.20 schwarze 390: table_add("author", "contrib");
391: table_add("author", "email");
392: table_add("author", "firstname");
393: table_add("author", "othername");
394: table_add("author", "surname");
1.27 schwarze 395: table_add("author", "TEXT");
1.23 schwarze 396: table_add("authorgroup", "author");
1.27 schwarze 397: table_add("authorgroup", "editor");
1.23 schwarze 398: table_add("authorgroup", "othercredit");
1.16 schwarze 399: table_add("blockquote", NULL);
1.18 schwarze 400: table_add("book", NULL);
1.23 schwarze 401: table_add("bookinfo", "authorgroup");
1.27 schwarze 402: table_add("bookinfo", "copyright");
1.23 schwarze 403: table_add("bookinfo", "legalnotice");
1.21 schwarze 404: table_add("bookinfo", "pubdate");
1.27 schwarze 405: table_add("bookinfo", "releaseinfo");
406: table_add("bookinfo", "subtitle");
1.21 schwarze 407: table_add("bookinfo", "title");
1.32 schwarze 408: table_add("caption", "TEXT");
1.9 schwarze 409: table_add("chapter", NULL);
1.23 schwarze 410: table_add("citerefentry", "manvolnum");
411: table_add("citerefentry", "refentrytitle");
1.24 schwarze 412: table_add("citetitle", "TEXT");
413: table_add("cmdsynopsis", "arg");
414: table_add("cmdsynopsis", "command");
415: table_add("cmdsynopsis", "group");
1.33 ! schwarze 416: table_add("cmdsynopsis", "sbr");
1.12 schwarze 417: table_add("code", "TEXT");
1.24 schwarze 418: table_add("command", "TEXT");
1.19 schwarze 419: table_add("computeroutput", "TEXT");
1.10 schwarze 420: table_add("constant", "TEXT");
1.27 schwarze 421: table_add("contrib", "TEXT");
422: table_add("copyright", "holder");
423: table_add("copyright", "year");
1.21 schwarze 424: table_add("date", "TEXT");
1.27 schwarze 425: table_add("editor", "affiliation");
426: table_add("editor", "firstname");
427: table_add("editor", "surname");
1.24 schwarze 428: table_add("email", "TEXT");
1.29 schwarze 429: table_add("emphasis", "errorname");
430: table_add("emphasis", "function");
1.8 schwarze 431: table_add("emphasis", "TEXT");
1.6 schwarze 432: table_add("entry", NULL);
1.12 schwarze 433: table_add("errorname", "TEXT");
1.32 schwarze 434: table_add("figure", "mediaobject");
1.33 ! schwarze 435: table_add("figure", "title");
1.12 schwarze 436: table_add("filename", "TEXT");
1.24 schwarze 437: table_add("firstname", "TEXT");
438: table_add("firstterm", "TEXT");
1.31 schwarze 439: table_add("footnote", "para");
1.8 schwarze 440: table_add("funcdef", "function");
441: table_add("funcdef", "TEXT");
442: table_add("funcprototype", "funcdef");
443: table_add("funcprototype", "paramdef");
1.12 schwarze 444: table_add("funcsynopsis", "funcprototype");
445: table_add("funcsynopsis", "funcsynopsisinfo");
446: table_add("funcsynopsisinfo", "TEXT");
1.29 schwarze 447: table_add("function", "replaceable");
1.8 schwarze 448: table_add("function", "TEXT");
1.17 schwarze 449: table_add("glossary", "glossdiv");
450: table_add("glossary", "glossentry");
451: table_add("glossdef", "para");
452: table_add("glossdiv", "glossentry");
453: table_add("glossentry", "glossdef");
454: table_add("glossentry", "glossterm");
455: table_add("glossentry", "indexterm");
456: table_add("glosslist", "glossentry");
1.33 ! schwarze 457: table_add("glossterm", "emphasis");
1.17 schwarze 458: table_add("glossterm", "TEXT");
1.24 schwarze 459: table_add("group", "arg");
1.27 schwarze 460: table_add("holder", "TEXT");
1.32 schwarze 461: table_add("imageobject", "imagedata");
1.9 schwarze 462: table_add("indexterm", "primary");
463: table_add("indexterm", "secondary");
1.6 schwarze 464: table_add("informaltable", "tgroup");
1.7 schwarze 465: table_add("itemizedlist", "listitem");
1.24 schwarze 466: table_add("keycap", "TEXT");
467: table_add("keycode", "TEXT");
468: table_add("keysym", "TEXT");
1.18 schwarze 469: table_add("legalnotice", NULL);
1.15 schwarze 470: table_add("link", NULL);
1.7 schwarze 471: table_add("listitem", NULL);
1.12 schwarze 472: table_add("literal", "TEXT");
1.10 schwarze 473: table_add("literallayout", NULL);
1.23 schwarze 474: table_add("manvolnum", "TEXT");
1.19 schwarze 475: table_add("markup", "TEXT");
1.32 schwarze 476: table_add("mediaobject", "caption");
477: table_add("mediaobject", "imageobject");
1.30 schwarze 478: table_add("member", "constant");
479: table_add("member", "emphasis");
480: table_add("member", "function");
481: table_add("member", "property");
482: table_add("member", "symbol");
1.13 schwarze 483: table_add("member", "TEXT");
1.18 schwarze 484: table_add("note", NULL);
1.29 schwarze 485: table_add("option", "parameter");
486: table_add("option", "replaceable");
1.24 schwarze 487: table_add("option", "TEXT");
1.7 schwarze 488: table_add("orderedlist", "listitem");
1.27 schwarze 489: table_add("orgdiv", "TEXT");
490: table_add("orgname", "TEXT");
491: table_add("othercredit", "affiliation");
1.20 schwarze 492: table_add("othercredit", "contrib");
493: table_add("othercredit", "email");
494: table_add("othercredit", "firstname");
495: table_add("othercredit", "othername");
496: table_add("othercredit", "surname");
1.24 schwarze 497: table_add("othername", "TEXT");
1.2 schwarze 498: table_add("para", NULL);
1.9 schwarze 499: table_add("paramdef", "parameter");
500: table_add("paramdef", "TEXT");
501: table_add("parameter", "TEXT");
1.27 schwarze 502: table_add("part", NULL);
1.24 schwarze 503: table_add("personname", "firstname");
504: table_add("personname", "surname");
1.27 schwarze 505: table_add("phrase", "TEXT");
506: table_add("preface", NULL);
1.9 schwarze 507: table_add("primary", NULL);
1.10 schwarze 508: table_add("programlisting", NULL);
1.24 schwarze 509: table_add("property", "TEXT");
1.21 schwarze 510: table_add("pubdate", "TEXT");
1.29 schwarze 511: table_add("quote", "command");
1.33 ! schwarze 512: table_add("quote", "filename");
1.28 schwarze 513: table_add("quote", "literal");
1.24 schwarze 514: table_add("quote", "TEXT");
1.23 schwarze 515: table_add("refentry", "refentryinfo");
1.11 schwarze 516: table_add("refentry", "refmeta");
517: table_add("refentry", "refnamediv");
518: table_add("refentry", "refsect1");
519: table_add("refentry", "refsynopsisdiv");
1.27 schwarze 520: table_add("refentryinfo", "author");
1.33 ! schwarze 521: table_add("refentryinfo", "authorgroup");
1.27 schwarze 522: table_add("refentryinfo", "copyright");
1.24 schwarze 523: table_add("refentryinfo", "date");
1.23 schwarze 524: table_add("refentrytitle", "TEXT");
1.11 schwarze 525: table_add("refmeta", "manvolnum");
526: table_add("refmeta", "refentrytitle");
1.23 schwarze 527: table_add("refmeta", "refmiscinfo");
528: table_add("refmiscinfo", "TEXT");
1.11 schwarze 529: table_add("refname", "TEXT");
530: table_add("refnamediv", "refname");
531: table_add("refnamediv", "refpurpose");
532: table_add("refpurpose", "TEXT");
1.9 schwarze 533: table_add("refsect1", NULL);
534: table_add("refsect2", NULL);
1.24 schwarze 535: table_add("refsynopsisdiv", "cmdsynopsis");
1.11 schwarze 536: table_add("refsynopsisdiv", "funcsynopsis");
1.27 schwarze 537: table_add("releaseinfo", "TEXT");
1.24 schwarze 538: table_add("replaceable", "TEXT");
539: table_add("returnvalue", "TEXT");
1.6 schwarze 540: table_add("row", "entry");
1.10 schwarze 541: table_add("screen", NULL);
1.9 schwarze 542: table_add("secondary", NULL);
543: table_add("section", NULL);
544: table_add("sect1", NULL);
545: table_add("sect2", NULL);
546: table_add("sect3", NULL);
547: table_add("sect4", NULL);
1.12 schwarze 548: table_add("sgmltag", "TEXT");
1.14 schwarze 549: table_add("simpara", NULL);
1.13 schwarze 550: table_add("simplelist", "member");
1.27 schwarze 551: table_add("simplesect", NULL);
1.12 schwarze 552: table_add("structfield", "TEXT");
553: table_add("structname", "TEXT");
1.30 schwarze 554: table_add("subscript", "TEXT");
1.27 schwarze 555: table_add("subtitle", "TEXT");
1.30 schwarze 556: table_add("superscript", "emphasis");
557: table_add("superscript", "TEXT");
1.24 schwarze 558: table_add("surname", "TEXT");
1.10 schwarze 559: table_add("symbol", "TEXT");
1.33 ! schwarze 560: table_add("synopsis", "function");
! 561: table_add("synopsis", "parameter");
! 562: table_add("synopsis", "type");
1.24 schwarze 563: table_add("synopsis", "TEXT");
1.22 schwarze 564: table_add("systemitem", "TEXT");
1.6 schwarze 565: table_add("table", "tgroup");
566: table_add("table", "title");
567: table_add("tbody", "row");
1.7 schwarze 568: table_add("term", NULL);
1.6 schwarze 569: table_add("tgroup", "colspec");
570: table_add("tgroup", "tbody");
571: table_add("tgroup", "thead");
572: table_add("thead", "row");
1.29 schwarze 573: table_add("title", "acronym");
574: table_add("title", "emphasis");
575: table_add("title", "errorname");
576: table_add("title", "function");
577: table_add("title", "literal");
578: table_add("title", "quote");
579: table_add("title", "trademark");
580: table_add("title", "type");
1.6 schwarze 581: table_add("title", "TEXT");
1.27 schwarze 582: table_add("trademark", "TEXT");
1.12 schwarze 583: table_add("type", "TEXT");
1.15 schwarze 584: table_add("ulink", NULL);
1.12 schwarze 585: table_add("userinput", "TEXT");
1.7 schwarze 586: table_add("variablelist", "varlistentry");
587: table_add("varlistentry", "listitem");
588: table_add("varlistentry", "term");
1.24 schwarze 589: table_add("varname", "TEXT");
1.27 schwarze 590: table_add("warning", NULL);
591: table_add("year", "TEXT");
1.2 schwarze 592: }
593: table_add(NULL, NULL);
594:
595: /* Loop over input files. */
1.1 schwarze 596: fd = -1;
597: fname = NULL;
598: while ((rsz = getline(&fname, &fsz, stdin)) != -1) {
599: if (fname[rsz - 1] == '\n')
600: fname[--rsz] = '\0';
601: if ((fd = open(fname, O_RDONLY, 0)) == -1)
602: err(1, "%s", fname);
603: parse_file(fd, fname);
604: close(fd);
605: }
606:
607: /* Cleanup and error handling. */
608: free(fname);
609: if (ferror(stdin))
610: err(1, "standard input");
611: if (fd == -1)
612: errx(1, "No input file names found on standard input");
613:
614: /* Dump results. */
615: for (i = 0; i < tablei; i++)
1.2 schwarze 616: if (table[i].count != -1)
617: printf("%d\t%s\t%s\n", table[i].count,
618: table[i].parent, table[i].child);
1.4 schwarze 619:
620: /* Optional parent-child histogram. */
621: if (nchild.parent != NULL) {
622: printf("%s %s", nchild.parent, nchild.child);
623: for (i = 0; i < nchildsz; i++)
624: printf(" %d", nchild.freq[i]);
625: putchar('\n');
626: }
1.1 schwarze 627: return 0;
628: }
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