2768d7c32d8d54bab9c9b06136c7d528075d9584
* Copyright (c) 1987, 1993, 1994
* The Regents of the University of California. All rights reserved.
* %sccs.include.redist.c%
static char copyright
[] =
"@(#) Copyright (c) 1987, 1993, 1994\n\
The Regents of the University of California. All rights reserved.\n";
static char sccsid
[] = "@(#)ctags.c 8.3 (Berkeley) %G%";
* ctags: create a tags file
NODE
*head
; /* head of the sorted binary tree */
/* boolean "func" (see init()) */
bool _wht
[256], _etk
[256], _itk
[256], _btk
[256], _gd
[256];
FILE *inf
; /* ioptr for current input file */
FILE *outf
; /* ioptr for tags file */
long lineftell
; /* ftell after getc( inf ) == '\n' */
int lineno
; /* line number of current line */
int dflag
; /* -d: non-macro defines */
int tflag
; /* -t: create tags for typedefs */
int vflag
; /* -v: vgrind style index output */
int wflag
; /* -w: suppress warnings */
int xflag
; /* -x: cxref style output */
char *curfile
; /* current input file name */
char searchar
= '/'; /* use /.../ searches by default */
void find_entries
__P((char *));
static char *outfile
= "tags"; /* output file */
int aflag
; /* -a: append to tags */
int uflag
; /* -u: update tags */
int exit_val
; /* exit value */
int step
; /* step through args */
int ch
; /* getopts char */
char cmd
[100]; /* too ugly to explain */
while ((ch
= getopt(argc
, argv
, "BFadf:tuwvx")) != EOF
)
usage
: (void)fprintf(stderr
,
"usage: ctags [-BFadtuwvx] [-f tagsfile] file ...");
for (exit_val
= step
= 0; step
< argc
; ++step
)
if (!(inf
= fopen(argv
[step
], "r"))) {
find_entries(argv
[step
]);
for (step
= 0; step
< argc
; step
++) {
"mv %s OTAGS; fgrep -v '\t%s\t' OTAGS >%s; rm OTAGS",
if (!(outf
= fopen(outfile
, aflag
? "a" : "w")))
err(exit_val
, "%s", outfile
);
(void)sprintf(cmd
, "sort -o %s %s",
* this routine sets up the boolean psuedo-functions which work by
* setting boolean flags dependent upon the corresponding character.
* Every char which is NOT in that string is false with respect to
* the pseudo-function. Therefore, all of the array "_wht" is NO
* by default and then the elements subscripted by the chars in
* CWHITE are set to YES. Thus, "_wht" of a char is YES if it is in
* the string CWHITE, else NO.
for (i
= 0; i
< 256; i
++) {
_wht
[i
] = _etk
[i
] = _itk
[i
] = _btk
[i
] = NO
;
for (sp
= CWHITE
; *sp
; sp
++) /* white space chars */
#define CTOKEN " \t\n\"'#()[]{}=-+%*/&|^~!<>;,.:?"
for (sp
= CTOKEN
; *sp
; sp
++) /* token ending chars */
#define CINTOK "ABCDEFGHIJKLMNOPQRSTUVWXYZ_abcdefghijklmnopqrstuvwxyz0123456789"
for (sp
= CINTOK
; *sp
; sp
++) /* valid in-token chars */
#define CBEGIN "ABCDEFGHIJKLMNOPQRSTUVWXYZ_abcdefghijklmnopqrstuvwxyz"
for (sp
= CBEGIN
; *sp
; sp
++) /* token starting chars */
for (sp
= CNOTGD
; *sp
; sp
++) /* invalid after-function chars */
* this routine opens the specified file and calls the function
* which searches the file.
lineno
= 0; /* should be 1 ?? KB */
if (cp
= strrchr(file
, '.')) {
if (cp
[1] == 'l' && !cp
[2]) {
/* lisp */ if (strchr(LISPCHR
, c
)) {
* we search all 3 parts of a lex file
* for C references. This may be wrong.
(void)strcpy(lbuf
, "%%$");
/* yacc */ else if (cp
[1] == 'y' && !cp
[2]) {
* we search only the 3rd part of a yacc file
* for C references. This may be wrong.
(void)strcpy(lbuf
, "%%$");
pfnote("yyparse", lineno
);
/* fortran */ else if ((cp
[1] != 'c' && cp
[1] != 'h') && !cp
[2]) {