Commit | Line | Data |
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aaed0657 KB |
1 | static char *sccsid = "@(#)sort.c 4.13 (Berkeley) %G%"; |
2 | #include <sys/param.h> | |
88ab53e6 BJ |
3 | #include <stdio.h> |
4 | #include <ctype.h> | |
5 | #include <signal.h> | |
88ab53e6 BJ |
6 | #include <sys/stat.h> |
7 | ||
4e315262 | 8 | #define L 2048 |
88ab53e6 BJ |
9 | #define N 7 |
10 | #define C 20 | |
8e1d70b8 | 11 | #ifndef pdp11 |
8ec451a2 | 12 | #define MEM (128*2048) |
2f164ac0 | 13 | #else |
88ab53e6 | 14 | #define MEM (16*2048) |
2f164ac0 | 15 | #endif |
88ab53e6 BJ |
16 | #define NF 10 |
17 | ||
8ec451a2 DS |
18 | #define rline(mp) (fgets((mp)->l, L, (mp)->b) == NULL) |
19 | ||
88ab53e6 BJ |
20 | FILE *is, *os; |
21 | char *dirtry[] = {"/usr/tmp", "/tmp", NULL}; | |
22 | char **dirs; | |
aaed0657 | 23 | char file1[MAXPATHLEN]; |
88ab53e6 BJ |
24 | char *file = file1; |
25 | char *filep; | |
26 | int nfiles; | |
27 | unsigned nlines; | |
28 | unsigned ntext; | |
29 | int *lspace; | |
30 | char *tspace; | |
31 | int cmp(), cmpa(); | |
32 | int (*compare)() = cmpa; | |
33 | char *eol(); | |
34 | int term(); | |
35 | int mflg; | |
36 | int cflg; | |
37 | int uflg; | |
38 | char *outfil; | |
39 | int unsafeout; /*kludge to assure -m -o works*/ | |
40 | char tabchar; | |
41 | int eargc; | |
42 | char **eargv; | |
43 | ||
44 | char zero[256]; | |
45 | ||
46 | char fold[256] = { | |
47 | 0200,0201,0202,0203,0204,0205,0206,0207, | |
48 | 0210,0211,0212,0213,0214,0215,0216,0217, | |
49 | 0220,0221,0222,0223,0224,0225,0226,0227, | |
50 | 0230,0231,0232,0233,0234,0235,0236,0237, | |
51 | 0240,0241,0242,0243,0244,0245,0246,0247, | |
52 | 0250,0251,0252,0253,0254,0255,0256,0257, | |
53 | 0260,0261,0262,0263,0264,0265,0266,0267, | |
54 | 0270,0271,0272,0273,0274,0275,0276,0277, | |
55 | 0300,0301,0302,0303,0304,0305,0306,0307, | |
56 | 0310,0311,0312,0313,0314,0315,0316,0317, | |
57 | 0320,0321,0322,0323,0324,0325,0326,0327, | |
58 | 0330,0331,0332,0333,0334,0335,0336,0337, | |
59 | 0340,0341,0342,0343,0344,0345,0346,0347, | |
60 | 0350,0351,0352,0353,0354,0355,0356,0357, | |
61 | 0360,0361,0362,0363,0364,0365,0366,0367, | |
62 | 0370,0371,0372,0373,0374,0375,0376,0377, | |
63 | 0000,0001,0002,0003,0004,0005,0006,0007, | |
64 | 0010,0011,0012,0013,0014,0015,0016,0017, | |
65 | 0020,0021,0022,0023,0024,0025,0026,0027, | |
66 | 0030,0031,0032,0033,0034,0035,0036,0037, | |
67 | 0040,0041,0042,0043,0044,0045,0046,0047, | |
68 | 0050,0051,0052,0053,0054,0055,0056,0057, | |
69 | 0060,0061,0062,0063,0064,0065,0066,0067, | |
70 | 0070,0071,0072,0073,0074,0075,0076,0077, | |
71 | 0100,0101,0102,0103,0104,0105,0106,0107, | |
72 | 0110,0111,0112,0113,0114,0115,0116,0117, | |
73 | 0120,0121,0122,0123,0124,0125,0126,0127, | |
97be3be5 | 74 | 0130,0131,0132,0133,0134,0135,0136,0137, |
88ab53e6 BJ |
75 | 0140,0101,0102,0103,0104,0105,0106,0107, |
76 | 0110,0111,0112,0113,0114,0115,0116,0117, | |
77 | 0120,0121,0122,0123,0124,0125,0126,0127, | |
78 | 0130,0131,0132,0173,0174,0175,0176,0177 | |
79 | }; | |
80 | char nofold[256] = { | |
81 | 0200,0201,0202,0203,0204,0205,0206,0207, | |
82 | 0210,0211,0212,0213,0214,0215,0216,0217, | |
83 | 0220,0221,0222,0223,0224,0225,0226,0227, | |
84 | 0230,0231,0232,0233,0234,0235,0236,0237, | |
85 | 0240,0241,0242,0243,0244,0245,0246,0247, | |
86 | 0250,0251,0252,0253,0254,0255,0256,0257, | |
87 | 0260,0261,0262,0263,0264,0265,0266,0267, | |
88 | 0270,0271,0272,0273,0274,0275,0276,0277, | |
89 | 0300,0301,0302,0303,0304,0305,0306,0307, | |
90 | 0310,0311,0312,0313,0314,0315,0316,0317, | |
91 | 0320,0321,0322,0323,0324,0325,0326,0327, | |
92 | 0330,0331,0332,0333,0334,0335,0336,0337, | |
93 | 0340,0341,0342,0343,0344,0345,0346,0347, | |
94 | 0350,0351,0352,0353,0354,0355,0356,0357, | |
95 | 0360,0361,0362,0363,0364,0365,0366,0367, | |
96 | 0370,0371,0372,0373,0374,0375,0376,0377, | |
97 | 0000,0001,0002,0003,0004,0005,0006,0007, | |
98 | 0010,0011,0012,0013,0014,0015,0016,0017, | |
99 | 0020,0021,0022,0023,0024,0025,0026,0027, | |
100 | 0030,0031,0032,0033,0034,0035,0036,0037, | |
101 | 0040,0041,0042,0043,0044,0045,0046,0047, | |
102 | 0050,0051,0052,0053,0054,0055,0056,0057, | |
103 | 0060,0061,0062,0063,0064,0065,0066,0067, | |
104 | 0070,0071,0072,0073,0074,0075,0076,0077, | |
105 | 0100,0101,0102,0103,0104,0105,0106,0107, | |
106 | 0110,0111,0112,0113,0114,0115,0116,0117, | |
107 | 0120,0121,0122,0123,0124,0125,0126,0127, | |
108 | 0130,0131,0132,0133,0134,0135,0136,0137, | |
109 | 0140,0141,0142,0143,0144,0145,0146,0147, | |
110 | 0150,0151,0152,0153,0154,0155,0156,0157, | |
111 | 0160,0161,0162,0163,0164,0165,0166,0167, | |
112 | 0170,0171,0172,0173,0174,0175,0176,0177 | |
113 | }; | |
114 | ||
115 | char nonprint[256] = { | |
116 | 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, | |
117 | 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, | |
118 | 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, | |
119 | 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, | |
120 | 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, | |
121 | 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, | |
122 | 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, | |
123 | 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, | |
124 | 1,1,1,1,1,1,1,1,1,0,0,1,1,1,1,1, | |
125 | 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, | |
126 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, | |
127 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, | |
128 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, | |
129 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, | |
130 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, | |
131 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1 | |
132 | }; | |
133 | ||
134 | char dict[256] = { | |
135 | 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, | |
136 | 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, | |
137 | 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, | |
138 | 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, | |
139 | 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, | |
140 | 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, | |
141 | 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, | |
142 | 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, | |
143 | 1,1,1,1,1,1,1,1,1,0,0,1,1,1,1,1, | |
144 | 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, | |
145 | 0,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, | |
146 | 0,0,0,0,0,0,0,0,0,0,1,1,1,1,1,1, | |
147 | 1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, | |
148 | 0,0,0,0,0,0,0,0,0,0,0,1,1,1,1,1, | |
149 | 1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, | |
150 | 0,0,0,0,0,0,0,0,0,0,0,1,1,1,1,1 | |
151 | }; | |
152 | ||
153 | struct field { | |
154 | char *code; | |
155 | char *ignore; | |
156 | int nflg; | |
157 | int rflg; | |
158 | int bflg[2]; | |
159 | int m[2]; | |
160 | int n[2]; | |
161 | } fields[NF]; | |
162 | struct field proto = { | |
163 | nofold+128, | |
164 | zero+128, | |
165 | 0, | |
166 | 1, | |
167 | 0,0, | |
168 | 0,-1, | |
169 | 0,0 | |
170 | }; | |
171 | int nfields; | |
172 | int error = 1; | |
173 | char *setfil(); | |
174 | char *sbrk(); | |
175 | char *brk(); | |
176 | ||
2f164ac0 RE |
177 | #define blank(c) ((c) == ' ' || (c) == '\t') |
178 | ||
88ab53e6 BJ |
179 | main(argc, argv) |
180 | char **argv; | |
181 | { | |
182 | register a; | |
183 | extern char end[1]; | |
184 | char *ep; | |
185 | char *arg; | |
186 | struct field *p, *q; | |
187 | int i; | |
88ab53e6 | 188 | |
88ab53e6 BJ |
189 | copyproto(); |
190 | eargv = argv; | |
191 | while (--argc > 0) { | |
192 | if(**++argv == '-') for(arg = *argv;;) { | |
193 | switch(*++arg) { | |
194 | case '\0': | |
195 | if(arg[-1] == '-') | |
196 | eargv[eargc++] = "-"; | |
197 | break; | |
198 | ||
199 | case 'o': | |
200 | if(--argc > 0) | |
201 | outfil = *++argv; | |
202 | continue; | |
203 | ||
204 | case 'T': | |
205 | if (--argc > 0) | |
206 | dirtry[0] = *++argv; | |
207 | continue; | |
208 | ||
209 | default: | |
210 | field(++*argv,nfields>0); | |
211 | break; | |
212 | } | |
213 | break; | |
214 | } else if (**argv == '+') { | |
215 | if(++nfields>=NF) { | |
216 | diag("too many keys",""); | |
217 | exit(1); | |
218 | } | |
219 | copyproto(); | |
220 | field(++*argv,0); | |
221 | } else | |
222 | eargv[eargc++] = *argv; | |
223 | } | |
224 | q = &fields[0]; | |
225 | for(a=1; a<=nfields; a++) { | |
226 | p = &fields[a]; | |
227 | if(p->code != proto.code) continue; | |
228 | if(p->ignore != proto.ignore) continue; | |
229 | if(p->nflg != proto.nflg) continue; | |
230 | if(p->rflg != proto.rflg) continue; | |
231 | if(p->bflg[0] != proto.bflg[0]) continue; | |
232 | if(p->bflg[1] != proto.bflg[1]) continue; | |
233 | p->code = q->code; | |
234 | p->ignore = q->ignore; | |
235 | p->nflg = q->nflg; | |
236 | p->rflg = q->rflg; | |
237 | p->bflg[0] = p->bflg[1] = q->bflg[0]; | |
238 | } | |
239 | if(eargc == 0) | |
240 | eargv[eargc++] = "-"; | |
241 | if(cflg && eargc>1) { | |
242 | diag("can check only 1 file",""); | |
243 | exit(1); | |
244 | } | |
245 | safeoutfil(); | |
246 | ||
247 | ep = end + MEM; | |
248 | lspace = (int *)sbrk(0); | |
249 | while((int)brk(ep) == -1) | |
250 | ep -= 512; | |
2f164ac0 | 251 | #ifndef vax |
88ab53e6 | 252 | brk(ep -= 512); /* for recursion */ |
2f164ac0 | 253 | #endif |
88ab53e6 BJ |
254 | a = ep - (char*)lspace; |
255 | nlines = (a-L); | |
256 | nlines /= (5*(sizeof(char *)/sizeof(char))); | |
2f164ac0 | 257 | ntext = nlines * 4 * (sizeof(char *)/sizeof(char)); |
88ab53e6 BJ |
258 | tspace = (char *)(lspace + nlines); |
259 | a = -1; | |
260 | for(dirs=dirtry; *dirs; dirs++) { | |
261 | sprintf(filep=file1, "%s/stm%05uaa", *dirs, getpid()); | |
262 | while (*filep) | |
263 | filep++; | |
264 | filep -= 2; | |
265 | if ( (a=creat(file, 0600)) >=0) | |
266 | break; | |
267 | } | |
268 | if(a < 0) { | |
269 | diag("can't locate temp",""); | |
270 | exit(1); | |
271 | } | |
272 | close(a); | |
3acd6e45 BJ |
273 | unlink(file); |
274 | if (signal(SIGHUP, SIG_IGN) != SIG_IGN) | |
275 | signal(SIGHUP, term); | |
88ab53e6 BJ |
276 | if (signal(SIGINT, SIG_IGN) != SIG_IGN) |
277 | signal(SIGINT, term); | |
278 | signal(SIGPIPE,term); | |
3acd6e45 BJ |
279 | if (signal(SIGTERM, SIG_IGN) != SIG_IGN) |
280 | signal(SIGTERM,term); | |
88ab53e6 BJ |
281 | nfiles = eargc; |
282 | if(!mflg && !cflg) { | |
283 | sort(); | |
284 | fclose(stdin); | |
285 | } | |
286 | for(a = mflg|cflg?0:eargc; a+N<nfiles || unsafeout&&a<eargc; a=i) { | |
287 | i = a+N; | |
288 | if(i>=nfiles) | |
289 | i = nfiles; | |
290 | newfile(); | |
291 | merge(a, i); | |
292 | } | |
293 | if(a != nfiles) { | |
294 | oldfile(); | |
295 | merge(a, nfiles); | |
296 | } | |
297 | error = 0; | |
298 | term(); | |
299 | } | |
300 | ||
301 | sort() | |
302 | { | |
303 | register char *cp; | |
304 | register char **lp; | |
8ec451a2 DS |
305 | register lines, text, len; |
306 | int done = 0; | |
307 | int i = 0; | |
88ab53e6 | 308 | char *f; |
4a2665d5 | 309 | char c; |
88ab53e6 | 310 | |
8ec451a2 DS |
311 | if((f = setfil(i++)) == NULL) |
312 | is = stdin; | |
313 | else if((is = fopen(f, "r")) == NULL) | |
314 | cant(f); | |
315 | ||
88ab53e6 BJ |
316 | do { |
317 | cp = tspace; | |
318 | lp = (char **)lspace; | |
8ec451a2 DS |
319 | lines = nlines; |
320 | text = ntext; | |
321 | while(lines > 0 && text > 0) { | |
322 | if(fgets(cp, L, is) == NULL) { | |
323 | if(i >= eargc) { | |
324 | ++done; | |
88ab53e6 | 325 | break; |
8ec451a2 DS |
326 | } |
327 | fclose(is); | |
328 | if((f = setfil(i++)) == NULL) | |
329 | is = stdin; | |
330 | else if((is = fopen(f, "r")) == NULL) | |
331 | cant(f); | |
332 | continue; | |
88ab53e6 | 333 | } |
8ec451a2 DS |
334 | *lp++ = cp; |
335 | len = strlen(cp) + 1; /* null terminate */ | |
17126de9 DS |
336 | if(cp[len - 2] != '\n') |
337 | if (len == L) { | |
338 | diag("line too long (skipped): ", cp); | |
339 | while((c=getc(is)) != EOF && c != '\n') | |
340 | /* throw it away */; | |
341 | --lp; | |
342 | continue; | |
343 | } else { | |
344 | diag("missing newline before EOF in ", | |
345 | f ? f : "standard input"); | |
346 | /* be friendly, append a newline */ | |
347 | ++len; | |
348 | cp[len - 2] = '\n'; | |
349 | cp[len - 1] = '\0'; | |
350 | } | |
8ec451a2 DS |
351 | cp += len; |
352 | --lines; | |
353 | text -= len; | |
88ab53e6 BJ |
354 | } |
355 | qsort((char **)lspace, lp); | |
356 | if(done == 0 || nfiles != eargc) | |
357 | newfile(); | |
358 | else | |
359 | oldfile(); | |
e22f8104 | 360 | clearerr(os); |
88ab53e6 BJ |
361 | while(lp > (char **)lspace) { |
362 | cp = *--lp; | |
363 | if(*cp) | |
8ec451a2 | 364 | fputs(cp, os); |
e22f8104 KM |
365 | if (ferror(os)) { |
366 | error = 1; | |
367 | term(); | |
368 | } | |
88ab53e6 BJ |
369 | } |
370 | fclose(os); | |
371 | } while(done == 0); | |
372 | } | |
373 | ||
374 | struct merg | |
375 | { | |
376 | char l[L]; | |
377 | FILE *b; | |
378 | } *ibuf[256]; | |
379 | ||
380 | merge(a,b) | |
381 | { | |
382 | struct merg *p; | |
383 | register char *cp, *dp; | |
384 | register i; | |
385 | struct merg **ip, *jp; | |
386 | char *f; | |
387 | int j; | |
388 | int k, l; | |
389 | int muflg; | |
390 | ||
391 | p = (struct merg *)lspace; | |
392 | j = 0; | |
393 | for(i=a; i < b; i++) { | |
394 | f = setfil(i); | |
395 | if(f == 0) | |
396 | p->b = stdin; | |
397 | else if((p->b = fopen(f, "r")) == NULL) | |
398 | cant(f); | |
399 | ibuf[j] = p; | |
400 | if(!rline(p)) j++; | |
401 | p++; | |
402 | } | |
403 | ||
404 | do { | |
405 | i = j; | |
406 | qsort((char **)ibuf, (char **)(ibuf+i)); | |
407 | l = 0; | |
408 | while(i--) { | |
409 | cp = ibuf[i]->l; | |
410 | if(*cp == '\0') { | |
411 | l = 1; | |
412 | if(rline(ibuf[i])) { | |
413 | k = i; | |
414 | while(++k < j) | |
415 | ibuf[k-1] = ibuf[k]; | |
416 | j--; | |
417 | } | |
418 | } | |
419 | } | |
420 | } while(l); | |
421 | ||
e22f8104 | 422 | clearerr(os); |
88ab53e6 BJ |
423 | muflg = mflg & uflg | cflg; |
424 | i = j; | |
425 | while(i > 0) { | |
426 | cp = ibuf[i-1]->l; | |
8e1d70b8 | 427 | if (!cflg && (uflg == 0 || muflg || i == 1 || |
e22f8104 | 428 | (*compare)(ibuf[i-1]->l,ibuf[i-2]->l))) { |
8ec451a2 | 429 | fputs(cp, os); |
e22f8104 KM |
430 | if (ferror(os)) { |
431 | error = 1; | |
432 | term(); | |
433 | } | |
434 | } | |
88ab53e6 BJ |
435 | if(muflg){ |
436 | cp = ibuf[i-1]->l; | |
437 | dp = p->l; | |
438 | do { | |
439 | } while((*dp++ = *cp++) != '\n'); | |
440 | } | |
441 | for(;;) { | |
442 | if(rline(ibuf[i-1])) { | |
443 | i--; | |
444 | if(i == 0) | |
445 | break; | |
446 | if(i == 1) | |
447 | muflg = uflg; | |
448 | } | |
449 | ip = &ibuf[i]; | |
450 | while(--ip>ibuf&&(*compare)(ip[0]->l,ip[-1]->l)<0){ | |
451 | jp = *ip; | |
452 | *ip = *(ip-1); | |
453 | *(ip-1) = jp; | |
454 | } | |
455 | if(!muflg) | |
456 | break; | |
457 | j = (*compare)(ibuf[i-1]->l,p->l); | |
458 | if(cflg) { | |
459 | if(j > 0) | |
460 | disorder("disorder:",ibuf[i-1]->l); | |
461 | else if(uflg && j==0) | |
462 | disorder("nonunique:",ibuf[i-1]->l); | |
463 | } else if(j == 0) | |
464 | continue; | |
465 | break; | |
466 | } | |
467 | } | |
468 | p = (struct merg *)lspace; | |
469 | for(i=a; i<b; i++) { | |
470 | fclose(p->b); | |
471 | p++; | |
472 | if(i >= eargc) | |
473 | unlink(setfil(i)); | |
474 | } | |
475 | fclose(os); | |
476 | } | |
477 | ||
88ab53e6 BJ |
478 | disorder(s,t) |
479 | char *s, *t; | |
480 | { | |
481 | register char *u; | |
482 | for(u=t; *u!='\n';u++) ; | |
483 | *u = 0; | |
484 | diag(s,t); | |
485 | term(); | |
486 | } | |
487 | ||
488 | newfile() | |
489 | { | |
490 | register char *f; | |
491 | ||
492 | f = setfil(nfiles); | |
493 | if((os=fopen(f, "w")) == NULL) { | |
494 | diag("can't create ",f); | |
495 | term(); | |
496 | } | |
497 | nfiles++; | |
498 | } | |
499 | ||
500 | char * | |
501 | setfil(i) | |
502 | { | |
503 | ||
504 | if(i < eargc) | |
505 | if(eargv[i][0] == '-' && eargv[i][1] == '\0') | |
506 | return(0); | |
507 | else | |
508 | return(eargv[i]); | |
509 | i -= eargc; | |
510 | filep[0] = i/26 + 'a'; | |
511 | filep[1] = i%26 + 'a'; | |
512 | return(file); | |
513 | } | |
514 | ||
515 | oldfile() | |
516 | { | |
517 | ||
518 | if(outfil) { | |
519 | if((os=fopen(outfil, "w")) == NULL) { | |
520 | diag("can't create ",outfil); | |
521 | term(); | |
522 | } | |
523 | } else | |
524 | os = stdout; | |
525 | } | |
526 | ||
527 | safeoutfil() | |
528 | { | |
529 | register int i; | |
530 | struct stat obuf,ibuf; | |
531 | ||
532 | if(!mflg||outfil==0) | |
533 | return; | |
534 | if(stat(outfil,&obuf)==-1) | |
535 | return; | |
536 | for(i=eargc-N;i<eargc;i++) { /*-N is suff., not nec.*/ | |
537 | if(stat(eargv[i],&ibuf)==-1) | |
538 | continue; | |
539 | if(obuf.st_dev==ibuf.st_dev&& | |
540 | obuf.st_ino==ibuf.st_ino) | |
541 | unsafeout++; | |
542 | } | |
543 | } | |
544 | ||
545 | cant(f) | |
546 | char *f; | |
547 | { | |
548 | ||
78d90aa3 | 549 | perror(f); |
88ab53e6 BJ |
550 | term(); |
551 | } | |
552 | ||
553 | diag(s,t) | |
554 | char *s, *t; | |
555 | { | |
556 | fputs("sort: ",stderr); | |
557 | fputs(s,stderr); | |
558 | fputs(t,stderr); | |
559 | fputs("\n",stderr); | |
560 | } | |
561 | ||
562 | term() | |
563 | { | |
564 | register i; | |
565 | ||
566 | signal(SIGINT, SIG_IGN); | |
567 | signal(SIGHUP, SIG_IGN); | |
568 | signal(SIGTERM, SIG_IGN); | |
569 | if(nfiles == eargc) | |
570 | nfiles++; | |
571 | for(i=eargc; i<=nfiles; i++) { /*<= in case of interrupt*/ | |
572 | unlink(setfil(i)); /*with nfiles not updated*/ | |
573 | } | |
3acd6e45 | 574 | _exit(error); |
88ab53e6 BJ |
575 | } |
576 | ||
577 | cmp(i, j) | |
578 | char *i, *j; | |
579 | { | |
580 | register char *pa, *pb; | |
581 | char *skip(); | |
582 | char *code, *ignore; | |
583 | int a, b; | |
584 | int k; | |
585 | char *la, *lb; | |
586 | register int sa; | |
587 | int sb; | |
588 | char *ipa, *ipb, *jpa, *jpb; | |
589 | struct field *fp; | |
590 | ||
591 | for(k = nfields>0; k<=nfields; k++) { | |
592 | fp = &fields[k]; | |
593 | pa = i; | |
594 | pb = j; | |
595 | if(k) { | |
596 | la = skip(pa, fp, 1); | |
597 | pa = skip(pa, fp, 0); | |
598 | lb = skip(pb, fp, 1); | |
599 | pb = skip(pb, fp, 0); | |
600 | } else { | |
601 | la = eol(pa); | |
602 | lb = eol(pb); | |
603 | } | |
604 | if(fp->nflg) { | |
3acd6e45 BJ |
605 | if(tabchar) { |
606 | if(pa<la&&*pa==tabchar) | |
607 | pa++; | |
608 | if(pb<lb&&*pb==tabchar) | |
609 | pb++; | |
610 | } | |
88ab53e6 BJ |
611 | while(blank(*pa)) |
612 | pa++; | |
613 | while(blank(*pb)) | |
614 | pb++; | |
615 | sa = sb = fp->rflg; | |
616 | if(*pa == '-') { | |
617 | pa++; | |
618 | sa = -sa; | |
619 | } | |
620 | if(*pb == '-') { | |
621 | pb++; | |
622 | sb = -sb; | |
623 | } | |
624 | for(ipa = pa; ipa<la&&isdigit(*ipa); ipa++) ; | |
625 | for(ipb = pb; ipb<lb&&isdigit(*ipb); ipb++) ; | |
626 | jpa = ipa; | |
627 | jpb = ipb; | |
628 | a = 0; | |
629 | if(sa==sb) | |
630 | while(ipa > pa && ipb > pb) | |
631 | if(b = *--ipb - *--ipa) | |
632 | a = b; | |
633 | while(ipa > pa) | |
634 | if(*--ipa != '0') | |
635 | return(-sa); | |
636 | while(ipb > pb) | |
637 | if(*--ipb != '0') | |
638 | return(sb); | |
639 | if(a) return(a*sa); | |
640 | if(*(pa=jpa) == '.') | |
641 | pa++; | |
642 | if(*(pb=jpb) == '.') | |
643 | pb++; | |
644 | if(sa==sb) | |
645 | while(pa<la && isdigit(*pa) | |
646 | && pb<lb && isdigit(*pb)) | |
647 | if(a = *pb++ - *pa++) | |
648 | return(a*sa); | |
649 | while(pa<la && isdigit(*pa)) | |
650 | if(*pa++ != '0') | |
651 | return(-sa); | |
652 | while(pb<lb && isdigit(*pb)) | |
653 | if(*pb++ != '0') | |
654 | return(sb); | |
655 | continue; | |
656 | } | |
657 | code = fp->code; | |
658 | ignore = fp->ignore; | |
659 | loop: | |
660 | while(ignore[*pa]) | |
661 | pa++; | |
662 | while(ignore[*pb]) | |
663 | pb++; | |
664 | if(pa>=la || *pa=='\n') | |
665 | if(pb<lb && *pb!='\n') | |
666 | return(fp->rflg); | |
667 | else continue; | |
668 | if(pb>=lb || *pb=='\n') | |
669 | return(-fp->rflg); | |
670 | if((sa = code[*pb++]-code[*pa++]) == 0) | |
671 | goto loop; | |
672 | return(sa*fp->rflg); | |
673 | } | |
674 | if(uflg) | |
675 | return(0); | |
676 | return(cmpa(i, j)); | |
677 | } | |
678 | ||
679 | cmpa(pa, pb) | |
680 | register char *pa, *pb; | |
681 | { | |
682 | while(*pa == *pb) { | |
683 | if(*pa++ == '\n') | |
684 | return(0); | |
685 | pb++; | |
686 | } | |
687 | return( | |
688 | *pa == '\n' ? fields[0].rflg: | |
689 | *pb == '\n' ?-fields[0].rflg: | |
690 | *pb > *pa ? fields[0].rflg: | |
691 | -fields[0].rflg | |
692 | ); | |
693 | } | |
694 | ||
695 | char * | |
696 | skip(pp, fp, j) | |
697 | struct field *fp; | |
698 | char *pp; | |
699 | { | |
700 | register i; | |
701 | register char *p; | |
702 | ||
703 | p = pp; | |
704 | if( (i=fp->m[j]) < 0) | |
705 | return(eol(p)); | |
706 | while(i-- > 0) { | |
707 | if(tabchar != 0) { | |
708 | while(*p != tabchar) | |
709 | if(*p != '\n') | |
710 | p++; | |
711 | else goto ret; | |
3acd6e45 BJ |
712 | if(i>0||j==0) |
713 | p++; | |
88ab53e6 BJ |
714 | } else { |
715 | while(blank(*p)) | |
716 | p++; | |
717 | while(!blank(*p)) | |
718 | if(*p != '\n') | |
719 | p++; | |
720 | else goto ret; | |
721 | } | |
722 | } | |
f26f60ad | 723 | if(tabchar==0||fp->bflg[j]) |
88ab53e6 BJ |
724 | while(blank(*p)) |
725 | p++; | |
726 | i = fp->n[j]; | |
727 | while(i-- > 0) { | |
728 | if(*p != '\n') | |
729 | p++; | |
730 | else goto ret; | |
731 | } | |
732 | ret: | |
733 | return(p); | |
734 | } | |
735 | ||
736 | char * | |
737 | eol(p) | |
738 | register char *p; | |
739 | { | |
740 | while(*p != '\n') p++; | |
741 | return(p); | |
742 | } | |
743 | ||
744 | copyproto() | |
745 | { | |
746 | register i; | |
747 | register int *p, *q; | |
748 | ||
749 | p = (int *)&proto; | |
750 | q = (int *)&fields[nfields]; | |
751 | for(i=0; i<sizeof(proto)/sizeof(*p); i++) | |
752 | *q++ = *p++; | |
753 | } | |
754 | ||
755 | field(s,k) | |
756 | char *s; | |
757 | { | |
758 | register struct field *p; | |
759 | register d; | |
760 | p = &fields[nfields]; | |
761 | d = 0; | |
762 | for(; *s!=0; s++) { | |
763 | switch(*s) { | |
764 | case '\0': | |
765 | return; | |
766 | ||
767 | case 'b': | |
768 | p->bflg[k]++; | |
769 | break; | |
770 | ||
771 | case 'd': | |
772 | p->ignore = dict+128; | |
773 | break; | |
774 | ||
775 | case 'f': | |
776 | p->code = fold+128; | |
777 | break; | |
778 | case 'i': | |
779 | p->ignore = nonprint+128; | |
780 | break; | |
781 | ||
782 | case 'c': | |
783 | cflg = 1; | |
784 | continue; | |
785 | ||
786 | case 'm': | |
787 | mflg = 1; | |
788 | continue; | |
789 | ||
790 | case 'n': | |
791 | p->nflg++; | |
792 | break; | |
793 | case 't': | |
794 | tabchar = *++s; | |
795 | if(tabchar == 0) s--; | |
796 | continue; | |
797 | ||
798 | case 'r': | |
799 | p->rflg = -1; | |
800 | continue; | |
801 | case 'u': | |
802 | uflg = 1; | |
803 | break; | |
804 | ||
805 | case '.': | |
806 | if(p->m[k] == -1) /* -m.n with m missing */ | |
807 | p->m[k] = 0; | |
808 | d = &fields[0].n[0]-&fields[0].m[0]; | |
809 | ||
810 | default: | |
811 | p->m[k+d] = number(&s); | |
812 | } | |
813 | compare = cmp; | |
814 | } | |
815 | } | |
816 | ||
817 | number(ppa) | |
818 | char **ppa; | |
819 | { | |
820 | int n; | |
821 | register char *pa; | |
822 | pa = *ppa; | |
823 | n = 0; | |
824 | while(isdigit(*pa)) { | |
825 | n = n*10 + *pa - '0'; | |
826 | *ppa = pa++; | |
827 | } | |
828 | return(n); | |
829 | } | |
830 | ||
88ab53e6 BJ |
831 | #define qsexc(p,q) t= *p;*p= *q;*q=t |
832 | #define qstexc(p,q,r) t= *p;*p= *r;*r= *q;*q=t | |
833 | ||
834 | qsort(a,l) | |
835 | char **a, **l; | |
836 | { | |
837 | register char **i, **j; | |
838 | char **k; | |
839 | char **lp, **hp; | |
840 | int c; | |
841 | char *t; | |
842 | unsigned n; | |
843 | ||
844 | ||
845 | ||
846 | start: | |
847 | if((n=l-a) <= 1) | |
848 | return; | |
849 | ||
850 | ||
851 | n /= 2; | |
852 | hp = lp = a+n; | |
853 | i = a; | |
854 | j = l-1; | |
855 | ||
856 | ||
857 | for(;;) { | |
858 | if(i < lp) { | |
859 | if((c = (*compare)(*i, *lp)) == 0) { | |
860 | --lp; | |
861 | qsexc(i, lp); | |
862 | continue; | |
863 | } | |
864 | if(c < 0) { | |
865 | ++i; | |
866 | continue; | |
867 | } | |
868 | } | |
869 | ||
870 | loop: | |
871 | if(j > hp) { | |
872 | if((c = (*compare)(*hp, *j)) == 0) { | |
873 | ++hp; | |
874 | qsexc(hp, j); | |
875 | goto loop; | |
876 | } | |
877 | if(c > 0) { | |
878 | if(i == lp) { | |
879 | ++hp; | |
880 | qstexc(i, hp, j); | |
881 | i = ++lp; | |
882 | goto loop; | |
883 | } | |
884 | qsexc(i, j); | |
885 | --j; | |
886 | ++i; | |
887 | continue; | |
888 | } | |
889 | --j; | |
890 | goto loop; | |
891 | } | |
892 | ||
893 | ||
894 | if(i == lp) { | |
895 | if(uflg) | |
896 | for(k=lp+1; k<=hp;) **k++ = '\0'; | |
897 | if(lp-a >= l-hp) { | |
898 | qsort(hp+1, l); | |
899 | l = lp; | |
900 | } else { | |
901 | qsort(a, lp); | |
902 | a = hp+1; | |
903 | } | |
904 | goto start; | |
905 | } | |
906 | ||
907 | ||
908 | --lp; | |
909 | qstexc(j, lp, i); | |
910 | j = --hp; | |
911 | } | |
912 | } | |
913 |