install approved copyright notice
[unix-history] / usr / src / usr.bin / error / main.c
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1/*
2 * Copyright (c) 1980 Regents of the University of California.
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3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms are permitted
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6 * provided that the above copyright notice and this paragraph are
7 * duplicated in all such forms and that any documentation,
8 * advertising materials, and other materials related to such
9 * distribution and use acknowledge that the software was developed
10 * by the University of California, Berkeley. The name of the
11 * University may not be used to endorse or promote products derived
12 * from this software without specific prior written permission.
13 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
14 * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
15 * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
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16 */
17
18#ifndef lint
19char copyright[] =
20"@(#) Copyright (c) 1980 Regents of the University of California.\n\
21 All rights reserved.\n";
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22#endif /* not lint */
23
24#ifndef lint
9c50374f 25static char sccsid[] = "@(#)main.c 5.3 (Berkeley) %G%";
c9bf2796 26#endif /* not lint */
442fe3bf 27
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28#include <stdio.h>
29#include <ctype.h>
30#include <signal.h>
31#include "error.h"
32
33int nerrors = 0;
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34Eptr er_head;
35Eptr *errors;
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36
37int nfiles = 0;
58195f21 38Eptr **files; /* array of pointers into errors*/
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39int language = INCC;
40
41char *currentfilename = "????";
42char *processname;
7799334e 43char im_on[] = "/dev/tty"; /* my tty name */
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44
45boolean query = FALSE; /* query the operator if touch files */
46boolean notouch = FALSE; /* don't touch ANY files */
47boolean piflag = FALSE; /* this is not pi */
58195f21 48boolean terse = FALSE; /* Terse output */
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49
50char *suffixlist = ".*"; /* initially, can touch any file */
51
52int errorsort();
53int onintr();
54/*
55 * error [-I ignorename] [-n] [-q] [-t suffixlist] [-s] [-v] [infile]
56 *
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57 * -T: terse output
58 *
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59 * -I: the following name, `ignorename' contains a list of
60 * function names that are not to be treated as hard errors.
61 * Default: ~/.errorsrc
62 *
63 * -n: don't touch ANY files!
64 *
65 * -q: The user is to be queried before touching each
66 * file; if not specified, all files with hard, non
67 * ignorable errors are touched (assuming they can be).
68 *
69 * -t: touch only files ending with the list of suffices, each
70 * suffix preceded by a dot.
71 * eg, -t .c.y.l
72 * will touch only files ending with .c, .y or .l
73 *
74 * -s: print a summary of the error's categories.
75 *
76 * -v: after touching all files, overlay vi(1), ex(1) or ed(1)
77 * on top of error, entered in the first file with
78 * an error in it, with the appropriate editor
79 * set up to use the "next" command to get the other
80 * files containing errors.
81 *
82 * -p: (obsolete: for older versions of pi without bug
83 * fix regarding printing out the name of the main file
84 * with an error in it)
85 * Take the following argument and use it as the name of
86 * the pascal source file, suffix .p
87 *
88 * -E: show the errors in sorted order; intended for
89 * debugging.
90 *
91 * -S: show the errors in unsorted order
92 * (as they come from the error file)
93 *
94 * infile: The error messages come from this file.
95 * Default: stdin
96 */
97main(argc, argv)
98 int argc;
99 char *argv[];
100{
101 char *cp;
102 char *ignorename = 0;
103 int ed_argc;
104 char **ed_argv; /*return from touchfiles*/
105 boolean show_errors = FALSE;
106 boolean Show_Errors = FALSE;
107 boolean pr_summary = FALSE;
108 boolean edit_files = FALSE;
109
110 processname = argv[0];
111
112 errorfile = stdin;
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113 if (argc > 1) for(; (argc > 1) && (argv[1][0] == '-'); argc--, argv++){
114 for (cp = argv[1] + 1; *cp; cp++) switch(*cp){
115 default:
116 fprintf(stderr, "%s: -%c: Unknown flag\n",
117 processname, *cp);
118 break;
119
120 case 'n': notouch = TRUE; break;
121 case 'q': query = TRUE; break;
122 case 'S': Show_Errors = TRUE; break;
123 case 's': pr_summary = TRUE; break;
124 case 'v': edit_files = TRUE; break;
125 case 'T': terse = TRUE; break;
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126 case 't':
127 *cp-- = 0; argv++; argc--;
128 if (argc > 1){
129 suffixlist = argv[1];
130 }
131 break;
132 case 'I': /*ignore file name*/
133 *cp-- = 0; argv++; argc--;
134 if (argc > 1)
135 ignorename = argv[1];
136 break;
137 }
138 }
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139 if (notouch)
140 suffixlist = 0;
141 if (argc > 1){
142 if (argc > 3){
143 fprintf(stderr, "%s: Only takes 0 or 1 arguments\n",
144 processname);
145 exit(3);
146 }
147 if ( (errorfile = fopen(argv[1], "r")) == NULL){
148 fprintf(stderr, "%s: %s: No such file or directory for reading errors.\n",
149 processname, argv[1]);
150 exit(4);
151 }
152 }
ad33082a 153 if ( (queryfile = fopen(im_on, "r")) == NULL){
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154 if (query){
155 fprintf(stderr,
156 "%s: Can't open \"%s\" to query the user.\n",
157 processname, im_on);
158 exit(9);
159 }
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160 }
161 if (signal(SIGINT, onintr) == SIG_IGN)
162 signal(SIGINT, SIG_IGN);
163 if (signal(SIGTERM, onintr) == SIG_IGN)
164 signal(SIGTERM, SIG_IGN);
165 getignored(ignorename);
166 eaterrors(&nerrors, &errors);
167 if (Show_Errors)
168 printerrors(TRUE, nerrors, errors);
58195f21 169 qsort(errors, nerrors, sizeof(Eptr), errorsort);
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170 if (show_errors)
171 printerrors(FALSE, nerrors, errors);
172 findfiles(nerrors, errors, &nfiles, &files);
173#define P(msg, arg) fprintf(stdout, msg, arg)
174 if (pr_summary){
175 if (nunknown)
176 P("%d Errors are unclassifiable.\n", nunknown);
177 if (nignore)
178 P("%d Errors are classifiable, but totally discarded.\n",nignore);
179 if (nsyncerrors)
180 P("%d Errors are synchronization errors.\n", nsyncerrors);
181 if (nignore)
182 P("%d Errors are discarded because they refer to sacrosinct files.\n", ndiscard);
183 if (nnulled)
184 P("%d Errors are nulled because they refer to specific functions.\n", nnulled);
185 if (nnonspec)
186 P("%d Errors are not specific to any file.\n", nnonspec);
187 if (nthisfile)
188 P("%d Errors are specific to a given file, but not to a line.\n", nthisfile);
189 if (ntrue)
190 P("%d Errors are true errors, and can be inserted into the files.\n", ntrue);
191 }
192 filenames(nfiles, files);
193 fflush(stdout);
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194 if (touchfiles(nfiles, files, &ed_argc, &ed_argv) && edit_files)
195 forkvi(ed_argc, ed_argv);
196}
197
198forkvi(argc, argv)
199 int argc;
200 char **argv;
201{
202 if (query){
203 switch(inquire(terse
204 ? "Edit? "
205 : "Do you still want to edit the files you touched? ")){
206 case Q_NO:
207 case Q_no:
208 return;
209 default:
210 break;
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211 }
212 }
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213 /*
214 * ed_agument's first argument is
215 * a vi/ex compatabile search argument
216 * to find the first occurance of ###
217 */
218 try("vi", argc, argv);
219 try("ex", argc, argv);
220 try("ed", argc-1, argv+1);
221 fprintf(stdout, "Can't find any editors.\n");
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222}
223
224try(name, argc, argv)
225 char *name;
226 int argc;
227 char **argv;
228{
229 argv[0] = name;
230 wordvprint(stdout, argc, argv);
231 fprintf(stdout, "\n");
232 fflush(stderr);
233 fflush(stdout);
234 sleep(2);
235 if (freopen(im_on, "r", stdin) == NULL)
236 return;
237 if (freopen(im_on, "w", stdout) == NULL)
238 return;
239 execvp(name, argv);
240}
241
242int errorsort(epp1, epp2)
58195f21 243 Eptr *epp1, *epp2;
ad33082a 244{
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245 reg Eptr ep1, ep2;
246 int order;
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247 /*
248 * Sort by:
249 * 1) synchronization, non specific, discarded errors first;
250 * 2) nulled and true errors last
251 * a) grouped by similar file names
252 * 1) grouped in ascending line number
253 */
254 ep1 = *epp1; ep2 = *epp2;
255 if (ep1 == 0 || ep2 == 0)
256 return(0);
257 if ( (NOTSORTABLE(ep1->error_e_class)) ^ (NOTSORTABLE(ep2->error_e_class))){
258 return(NOTSORTABLE(ep1->error_e_class) ? -1 : 1);
259 }
260 if (NOTSORTABLE(ep1->error_e_class)) /* then both are */
261 return(ep1->error_no - ep2->error_no);
262 order = strcmp(ep1->error_text[0], ep2->error_text[0]);
263 if (order == 0){
264 return(ep1->error_line - ep2->error_line);
265 }
266 return(order);
267}