CVS log for src/usr.bin/ctags/ctags.c

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PR bin/58786   Partly fix ctags -u processing

RVP pointed out that the command in the previous version to
remove old entries from the tags file would fail, if some were
not there (-u being used to add a new file's tags) as grep
exits 1 when the pattern is not found.   (The original version
would almost never fail, even when it should have, as its status
was just from the final "rm" command).

So make the command more complex to deal with that.

While there, do away with the OTAGS nonsense, and use mktemp(1) instead.

Also do away with the absurdly short 100 byte command buffer, and
use asprintf() instead.

And also properly quote strings being passed to system(3) (why the
code needs to use system(3) at all is an entirely different question).

There are still oh so many weirdnesses in this program, but when
used in the typical way, it should be no worse than it ever was.

XXX no pullups intended

PR bin/58786   More ctags error handling

Inspired by RVP's patch in PR bin/58786 add handling of write
errors, and failures to build or execute commands used in
implementing the -u option but implemented a little differently
(and avoiding adding yet more 80 column violations to this mess).

The processing of -u needs to be completely redone sometime, I mean,
no-one would really ever want to keep a file named OTAGS in "." would they?
Really???

XXX - pullups?   Probably not, no-one has ever cared about this before.

PR bin/58786 - fix exit status when tags file open fails

From RVP ... always exit(1) when opening new tags file fails.

s/psuedo/pseudo/ in comments.

ctags: fix pointer-sign issues

Refactor init() to avoid -Wpointer-sign for host builds.
Uses same cast pattern used in ctags.h.

Sync with HEAD

- add or adjust /* FALLTHROUGH */ where appropriate
- add __unreachable() after functions that can return but won't in
  this case, and thus can't be marked __dead easily

Sync with wrstuden-revivesa-base-2.

Remove the \n and tabs from the __COPYRIGHT() strings.
Tweak to use a consistent format.

Kill __P(), use ANSI function declarations, constify; WARNS=3.

Pull up revision 1.10 (requested by jmc in ticket #527):
Completely rework how tools/compat is done. Purge all uses/references to
_NETBSD_SOURCE as this makes cross building from older/newer versions of
NetBSD harder, not easier (and also makes the resulting tools 'different')
Wrap all required code with the inclusion of nbtool_config.h, attempt to
only use POSIX code in all places (or when reasonable test w. configure and
provide definitions: ala u_int, etc).
Reviewed by lukem. Tested on FreeBSD 4.9, Redhat Linux ES3, NetBSD 1.6.2 x86
NetBSD current (x86 and amd64) and Solaris 9.
Fixes PR's: PR#17762 PR#25944

Completely rework how tools/compat is done. Purge all uses/references to
_NETBSD_SOURCE as this makes cross building from older/newer versions of
NetBSD harder, not easier (and also makes the resulting tools 'different')

Wrap all required code with the inclusion of nbtool_config.h, attempt to
only use POSIX code in all places (or when reasonable test w. configure and
provide definitions: ala u_int, etc).

Reviewed by lukem. Tested on FreeBSD 4.9, Redhat Linux ES3, NetBSD 1.6.2 x86
NetBSD current (x86 and amd64) and Solaris 9.

Fixes PR's: PR#17762 PR#25944

Move UCB-licensed code from 4-clause to 3-clause licence.

Patches provided by Joel Baker in PR 22365, verified by myself.

use bounded string op

Make this compilable as a host tool.

Add { and } to shut up egcs. Reformat the more questionable code.

WARNSify, fix .Nm usage, getopt returns -1 not EOF

Sync with 4.4lite2

imported from 44lite2

Merge with 4.4Lite

Import from 4.4Lite

Add RCS identifiers.

initial import of 386bsd-0.1 sources

Initial revision