>Number:         962
>Category:       bin
>Synopsis:       file doesn't recognize files beginning with .\" as [nt]roff
>Confidential:   no
>Severity:       non-critical
>Priority:       medium
>Responsible:    bin-bug-people (Utility Bug People)
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Fri Apr 14 00:50:03 1995
>Originator:     Greg &
>Organization:
JPL
>Release:        1.0
>Environment:
System: NetBSD netbsd4me 1.0 NetBSD 1.0 (NETBSD4ME) #3: Fri Feb 10 12:10:19 PST 1995 earle@netbsd4me:/usr/src/1.0/usr/src/sys/arch/sparc/compile/NETBSD4ME sparc


>Description:
	According to /usr/src/usr.bin/file/ascmagic.c:ascmagic():

        /* these are easy, do them first */

        /*
         * for troff, look for . + letter + letter or .\";
         * this must be done to disambiguate tar archives' ./file
         * and other trash from real troff input.
         */
        if (*buf == '.') {
                unsigned char *tp = buf + 1;

                while (isascii(*tp) && isspace(*tp))
                        ++tp;   /* skip leading whitespace */
                if ((isascii(*tp) && (isalnum(*tp) || *tp=='\\') &&
                    isascii(*(tp+1)) && (isalnum(*(tp+1)) || *tp=='"'))) {
                        ckfputs("troff or preprocessor input text", stdout);
                        return 1;
                }
        }

Yet "file" keeps misinterpreting man pages that begin with .\" as "English
text":

netbsd4me:1:38 % head -1 sup.1 unzip.1 unzipsfx.1 zipinfo.1 funzip.1
==> sup.1 <==
.\" Copyright (c) 1992 Carnegie Mellon University

==> unzip.1 <==
.\" Info-ZIP grants permission to any individual or institution to use, copy,

==> unzipsfx.1 <==
.\" Info-ZIP grants permission to any individual or institution to use, copy,

==> zipinfo.1 <==
.\" Info-ZIP grants permission to any individual or institution to use, copy,

==> funzip.1 <==
.\" Info-ZIP grants permission to any individual or institution to use, copy,

netbsd4me:1:39 % file sup.1 unzip.1 unzipsfx.1 zipinfo.1 funzip.1
sup.1:      English text
unzip.1:    English text
unzipsfx.1: English text
zipinfo.1:  English text
funzip.1:   English text

Seems like a test is sneaking through somehow ...

(I noticed this because my "man2html" converter bitches if "file" doesn't
 return something with "roff" in it ... )

        - Greg

>How-To-Repeat:
	Run file(1) on the "sup" man page, for example
>Fix:
	Unknown as yet.  Some test in ascmagic() isn't working, methinks.

>Audit-Trail:
>Unformatted: