a61612ac3a9f4a48c8ca422f89db8a87d597a879
* Copyright (c) 1987, 1993
* The Regents of the University of California. All rights reserved.
* %sccs.include.redist.c%
static char copyright
[] =
"@(#) Copyright (c) 1987, 1993\n\
The Regents of the University of California. All rights reserved.\n";
static char sccsid
[] = "@(#)ctags.c 8.1 (Berkeley) %G%";
* ctags: create a tags file
NODE
*head
; /* head of the sorted binary tree */
/* boolean "func" (see init()) */
bool _wht
[0177],_etk
[0177],_itk
[0177],_btk
[0177],_gd
[0177];
FILE *inf
, /* ioptr for current input file */
*outf
; /* ioptr for tags file */
long lineftell
; /* ftell after getc( inf ) == '\n' */
int lineno
, /* line number of current line */
dflag
, /* -d: non-macro defines */
tflag
, /* -t: create tags for typedefs */
wflag
, /* -w: suppress warnings */
vflag
, /* -v: vgrind style index output */
xflag
; /* -x: cxref style output */
char *curfile
, /* current input file name */
searchar
= '/', /* use /.../ searches by default */
extern char *optarg
; /* getopt arguments */
static char *outfile
= "tags"; /* output file */
int aflag
, /* -a: append to tags */
uflag
, /* -u: update tags */
exit_val
, /* exit value */
step
, /* step through args */
char cmd
[100]; /* too ugly to explain */
while ((ch
= getopt(argc
,argv
,"BFadf:tuwvx")) != EOF
)
usage
: puts("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
++) {
(void)sprintf(cmd
,"mv %s OTAGS;fgrep -v '\t%s\t' OTAGS >%s;rm OTAGS",outfile
,argv
[step
],outfile
);
if (!(outf
= fopen(outfile
, aflag
? "a" : "w"))) {
(void)sprintf(cmd
,"sort %s -o %s",outfile
,outfile
);
* 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
< 0177; 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
= rindex(file
, '.')) {
if (cp
[1] == 'l' && !cp
[2]) {
/* lisp */ if (index(LISPCHR
,(char)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]) {