Commit | Line | Data |
---|---|---|
c30ca4f4 | 1 | /* |
5b56324c KB |
2 | * Copyright (c) 1987 The Regents of the University of California. |
3 | * All rights reserved. | |
4 | * | |
3317ec65 | 5 | * %sccs.include.redist.c% |
c30ca4f4 KB |
6 | */ |
7 | ||
8 | #ifndef lint | |
9 | char copyright[] = | |
5b56324c | 10 | "@(#) Copyright (c) 1987 The Regents of the University of California.\n\ |
c30ca4f4 | 11 | All rights reserved.\n"; |
5b56324c | 12 | #endif /* not lint */ |
c30ca4f4 KB |
13 | |
14 | #ifndef lint | |
3317ec65 | 15 | static char sccsid[] = "@(#)ctags.c 5.7 (Berkeley) %G%"; |
5b56324c | 16 | #endif /* not lint */ |
2e314d68 | 17 | |
5b56324c | 18 | #include <ctags.h> |
ebf8ef61 | 19 | #include <string.h> |
16bc359f KB |
20 | |
21 | /* | |
9927b527 | 22 | * ctags: create a tags file |
16bc359f KB |
23 | */ |
24 | ||
e99c8356 | 25 | NODE *head; /* head of the sorted binary tree */ |
16bc359f | 26 | |
e99c8356 KB |
27 | /* boolean "func" (see init()) */ |
28 | bool _wht[0177],_etk[0177],_itk[0177],_btk[0177],_gd[0177]; | |
16bc359f | 29 | |
e99c8356 KB |
30 | FILE *inf, /* ioptr for current input file */ |
31 | *outf; /* ioptr for tags file */ | |
16bc359f | 32 | |
e99c8356 | 33 | long lineftell; /* ftell after getc( inf ) == '\n' */ |
16bc359f | 34 | |
e99c8356 KB |
35 | int lineno, /* line number of current line */ |
36 | dflag, /* -d: non-macro defines */ | |
37 | tflag, /* -t: create tags for typedefs */ | |
38 | wflag, /* -w: suppress warnings */ | |
39 | vflag, /* -v: vgrind style index output */ | |
40 | xflag; /* -x: cxref style output */ | |
16bc359f | 41 | |
e99c8356 KB |
42 | char *curfile, /* current input file name */ |
43 | searchar = '/', /* use /.../ searches by default */ | |
44 | lbuf[BUFSIZ]; | |
16bc359f | 45 | |
e99c8356 KB |
46 | main(argc,argv) |
47 | int argc; | |
48 | char **argv; | |
16bc359f | 49 | { |
e99c8356 KB |
50 | extern char *optarg; /* getopt arguments */ |
51 | extern int optind; | |
52 | static char *outfile = "tags"; /* output file */ | |
5b56324c KB |
53 | int aflag, /* -a: append to tags */ |
54 | uflag, /* -u: update tags */ | |
55 | exit_val, /* exit value */ | |
e99c8356 KB |
56 | step, /* step through args */ |
57 | ch; /* getopts char */ | |
5b56324c | 58 | char cmd[100]; /* too ugly to explain */ |
16bc359f | 59 | |
5b56324c | 60 | aflag = uflag = NO; |
e99c8356 KB |
61 | while ((ch = getopt(argc,argv,"BFadf:tuwvx")) != EOF) |
62 | switch((char)ch) { | |
63 | case 'B': | |
64 | searchar = '?'; | |
c30ca4f4 | 65 | break; |
e99c8356 KB |
66 | case 'F': |
67 | searchar = '/'; | |
c30ca4f4 | 68 | break; |
e99c8356 | 69 | case 'a': |
c30ca4f4 KB |
70 | aflag++; |
71 | break; | |
e99c8356 KB |
72 | case 'd': |
73 | dflag++; | |
74 | break; | |
75 | case 'f': | |
76 | outfile = optarg; | |
77 | break; | |
78 | case 't': | |
c30ca4f4 KB |
79 | tflag++; |
80 | break; | |
e99c8356 | 81 | case 'u': |
c30ca4f4 KB |
82 | uflag++; |
83 | break; | |
e99c8356 | 84 | case 'w': |
c30ca4f4 KB |
85 | wflag++; |
86 | break; | |
e99c8356 | 87 | case 'v': |
c30ca4f4 | 88 | vflag++; |
e99c8356 | 89 | case 'x': |
c30ca4f4 KB |
90 | xflag++; |
91 | break; | |
e99c8356 KB |
92 | case '?': |
93 | default: | |
c30ca4f4 | 94 | goto usage; |
16bc359f | 95 | } |
e99c8356 KB |
96 | argv += optind; |
97 | argc -= optind; | |
98 | if (!argc) { | |
99 | usage: puts("Usage: ctags [-BFadtuwvx] [-f tagsfile] file ..."); | |
16bc359f KB |
100 | exit(1); |
101 | } | |
102 | ||
e99c8356 | 103 | init(); |
16bc359f | 104 | |
5b56324c | 105 | for (exit_val = step = 0;step < argc;++step) |
e99c8356 KB |
106 | if (!(inf = fopen(argv[step],"r"))) { |
107 | perror(argv[step]); | |
108 | exit_val = 1; | |
16bc359f | 109 | } |
5b56324c KB |
110 | else { |
111 | curfile = argv[step]; | |
e99c8356 | 112 | find_entries(argv[step]); |
5b56324c KB |
113 | (void)fclose(inf); |
114 | } | |
16bc359f | 115 | |
5b56324c KB |
116 | if (head) |
117 | if (xflag) | |
118 | put_entries(head); | |
119 | else { | |
120 | if (uflag) { | |
121 | for (step = 0;step < argc;step++) { | |
122 | (void)sprintf(cmd,"mv %s OTAGS;fgrep -v '\t%s\t' OTAGS >%s;rm OTAGS",outfile,argv[step],outfile); | |
123 | system(cmd); | |
124 | } | |
125 | ++aflag; | |
126 | } | |
127 | if (!(outf = fopen(outfile, aflag ? "a" : "w"))) { | |
128 | perror(outfile); | |
129 | exit(exit_val); | |
130 | } | |
131 | put_entries(head); | |
132 | (void)fclose(outf); | |
133 | if (uflag) { | |
134 | (void)sprintf(cmd,"sort %s -o %s",outfile,outfile); | |
135 | system(cmd); | |
136 | } | |
16bc359f | 137 | } |
e99c8356 | 138 | exit(exit_val); |
16bc359f KB |
139 | } |
140 | ||
141 | /* | |
e99c8356 KB |
142 | * init -- |
143 | * this routine sets up the boolean psuedo-functions which work by | |
144 | * setting boolean flags dependent upon the corresponding character. | |
145 | * Every char which is NOT in that string is false with respect to | |
146 | * the pseudo-function. Therefore, all of the array "_wht" is NO | |
147 | * by default and then the elements subscripted by the chars in | |
148 | * CWHITE are set to YES. Thus, "_wht" of a char is YES if it is in | |
149 | * the string CWHITE, else NO. | |
16bc359f | 150 | */ |
e99c8356 | 151 | init() |
16bc359f | 152 | { |
e99c8356 KB |
153 | register int i; |
154 | register char *sp; | |
16bc359f | 155 | |
e99c8356 KB |
156 | for (i = 0; i < 0177; i++) { |
157 | _wht[i] = _etk[i] = _itk[i] = _btk[i] = NO; | |
158 | _gd[i] = YES; | |
159 | } | |
160 | #define CWHITE " \f\t\n" | |
161 | for (sp = CWHITE; *sp; sp++) /* white space chars */ | |
162 | _wht[*sp] = YES; | |
163 | #define CTOKEN " \t\n\"'#()[]{}=-+%*/&|^~!<>;,.:?" | |
164 | for (sp = CTOKEN; *sp; sp++) /* token ending chars */ | |
165 | _etk[*sp] = YES; | |
166 | #define CINTOK "ABCDEFGHIJKLMNOPQRSTUVWXYZ_abcdefghijklmnopqrstuvwxyz0123456789" | |
167 | for (sp = CINTOK; *sp; sp++) /* valid in-token chars */ | |
168 | _itk[*sp] = YES; | |
169 | #define CBEGIN "ABCDEFGHIJKLMNOPQRSTUVWXYZ_abcdefghijklmnopqrstuvwxyz" | |
170 | for (sp = CBEGIN; *sp; sp++) /* token starting chars */ | |
171 | _btk[*sp] = YES; | |
172 | #define CNOTGD ",;" | |
173 | for (sp = CNOTGD; *sp; sp++) /* invalid after-function chars */ | |
174 | _gd[*sp] = NO; | |
16bc359f KB |
175 | } |
176 | ||
c30ca4f4 | 177 | /* |
e99c8356 KB |
178 | * find_entries -- |
179 | * this routine opens the specified file and calls the function | |
180 | * which searches the file. | |
c30ca4f4 | 181 | */ |
e99c8356 KB |
182 | find_entries(file) |
183 | char *file; | |
c30ca4f4 | 184 | { |
e99c8356 | 185 | register char *cp; |
c30ca4f4 | 186 | |
e99c8356 KB |
187 | lineno = 0; /* should be 1 ?? KB */ |
188 | if (cp = rindex(file, '.')) { | |
189 | if (cp[1] == 'l' && !cp[2]) { | |
5b56324c KB |
190 | register int c; |
191 | ||
192 | for (;;) { | |
193 | if (GETC(==,EOF)) | |
194 | return; | |
195 | if (!iswhite(c)) { | |
196 | rewind(inf); | |
197 | break; | |
198 | } | |
199 | } | |
200 | #define LISPCHR ";([" | |
201 | /* lisp */ if (index(LISPCHR,(char)c)) { | |
202 | l_entries(); | |
203 | return; | |
16bc359f | 204 | } |
e99c8356 | 205 | /* lex */ else { |
5b56324c KB |
206 | /* |
207 | * we search all 3 parts of a lex file | |
208 | * for C references. This may be wrong. | |
209 | */ | |
96d022f7 | 210 | toss_yysec(); |
5b56324c | 211 | (void)strcpy(lbuf,"%%$"); |
96d022f7 | 212 | pfnote("yylex",lineno); |
5b56324c | 213 | rewind(inf); |
f5c61c07 | 214 | } |
f5c61c07 | 215 | } |
5b56324c | 216 | /* yacc */ else if (cp[1] == 'y' && !cp[2]) { |
e99c8356 | 217 | /* |
5b56324c KB |
218 | * we search only the 3rd part of a yacc file |
219 | * for C references. This may be wrong. | |
e99c8356 | 220 | */ |
5b56324c KB |
221 | toss_yysec(); |
222 | (void)strcpy(lbuf,"%%$"); | |
223 | pfnote("yyparse",lineno); | |
224 | y_entries(); | |
0404816e | 225 | } |
5b56324c KB |
226 | /* fortran */ else if ((cp[1] != 'c' && cp[1] != 'h') && !cp[2]) { |
227 | if (PF_funcs()) | |
0404816e | 228 | return; |
5b56324c | 229 | rewind(inf); |
0404816e | 230 | } |
c30ca4f4 | 231 | } |
5b56324c | 232 | /* C */ c_entries(); |
c30ca4f4 | 233 | } |