fish doesn't tab complete some man pages

[c02y]

For example, pthread_mutex_init or pthread_mutex_destory will not be tab-completed in fish which can be tab-completed under bash if I installed bash-completion package. In fish, I have to type man pthread_mutex_init completely to view the man page, and I already did fish_update_completions before this.

If I type man pthread_mutex_ then TAB， it only show 2 APIs which doesn't include pthread_mutex_init or pthread_mutex_destory.

Weird thing is, in fish, the tab-completion for pthread_mutex_init or pthread_mutex_destory works fine in Ubuntu 14.04 but not in CentOS 6.5, the fish in both disstributions is v2.2b1 installed from the tar.gz file at fishshell.com/beta

[zanchey]

What does apropos pthread_mutex_ show?

[ridiculousfish]

I can reproduce this on my Ubuntu Trusty install, but for some reason I don't actually have any pthread_mutex man pages. I have pthread_attr_destroy and friends, but none of the mutex ones. Weird.

[c02y]

@zanchey What does apropos pthread_mutex_ show?

In CentOS 6.5:

1. apropos pthread_mutex_ then Enter in fish will show 8 items including pthread_mutex_init and pthread_mutex_destory, same as man pthread_mutex_ then TAB in bash.

2. apropos pthread_mutex_ then TAB in fish will show only 7 items (each item is in one line with comment in ()):

   pthread_mutex_getprioceiling ....(...)
   pthread_mutex_getprioceiling] ...(...)
   pthread_mutex_init ...(...)
   pthread_mutex_init] ...(...)
   pthread_mutex_lock ...(...)
   pthread_mutex_lock] ...(...)
   pthread_mutex_timedlock ...(...)

note the same item with "]" at the end, and the other items in the result of 1 (8 items) are missing. WEIRD.

In Ubuntu 14.04:
In both bash and fish, the results of commands in 1 and 2 mentioned above contain 8 items as 1.

[c02y]

@ridiculousfish I don't actually have any pthread_mutex man pages.

you mean you see no result even typing the whole man pthread_mutex_init?

[zanchey]

You'll need manpages-posix-dev installed on Ubuntu.

[c02y]

@zanchey

You'll need manpages-posix-dev installed on Ubuntu.

They are fine for me in my Ubuntu, I think you mean @ridiculousfish should install manpages-posix-dev in his Ubuntu.

[zanchey]

I think you mean @ridiculousfish should install manpages-posix-dev in his Ubuntu.

Yes, of course.

Anyway, the underlying problem is that the output of apropos on CentOS is not handled by the __fish_complete_man awk script. For the record, parsing this output sucks.

[Skyfold]

May be related: Bash gives me more completion options for git remotes. Fish does not complete set* (set-url, set-head, set-branches). I tried this on a Fedora box with bash completions installed. I get the same missing completions on OSX.

[faho]

@Skyfold: Nope, not related. This is about CentOS's weird apropos which the man page parser can't currently handle. The git completions are hand-written (and pretty much have to be, since there's no way to write a parser to that level of detail).

I've now opened #2567 to track that.

[zanchey]

I think this should be fixed with ef67fc7, though I'd appreciate some testing.

The input I used for testing is:

## Debian 8
Printf (3o)          - Formatted output functions.
ber_printf (3)       - OpenLDAP LBER simplified Basic Encoding Rules library routines for encoding
caca_conio_cprintf (3caca) - The libcaca public header.
caca_conio_printf (3caca) - The libcaca public header.
printf (1)           - format and print data
printf (1posix)      - write formatted output
printf (3)           - formatted output conversion
printf (3posix)      - print formatted output
set_matchpathcon_printf (3) - set flags controlling the operation of matchpathcon or matchpathcon_index and configure the behaviour of validity checking and error displaying
## CentOS 5
asprintf             (3)  - print to allocated string
dprintf              (3)  - print to a file descriptor
fprintf [printf]     (3)  - formatted output conversion
fprintf [printf]     (3p)  - print formatted output
fwprintf [wprintf]   (3)  - formatted wide character output conversion
fwprintf [wprintf]   (3p)  - print formatted wide-character output
printf               (1)  - format and print data
printf               (1p)  - write formatted output
printf               (3)  - formatted output conversion
printf               (3p)  - print formatted output
printf [builtins]    (1)  - bash built-in commands, see bash(1)
## OS X 10.11
format(ntcl)             - Format a string in the style of sprintf
fwkpfv(1)                - FireWire kprintf viewer
printf(1)                - formatted output
xprintf(5)               - extensible printf
## FreeBSD 10.1
ber_alloc_t(3), ber_flush(3), ber_flush2(3), ber_printf(3), ber_put_int(3), ber_put_enum(3), ber_put_ostring(3), ber_put_string(3), ber_put_null(3), ber_put_boolean(3), ber_put_bitstring(3), ber_start_seq(3), ber_start_set(3), ber_put_seq(3), ber_put_set(3) - OpenLDAP LBER simplified Basic Encoding Rules library routines for encoding
curl_maprintf(3), curl_mfprintf(3), curl_mprintf(3), curl_msnprintf(3), curl_msprintf curl_mvaprintf(3), curl_mvfprintf(3), curl_mvprintf(3), curl_mvsnprintf(3), curl_mvsprintf(3) - formatted output conversion
gprintf(1), printf(1)    - format and print data
builtin(1), !(1), %(1), .(1), :(1), @(1), [(1), {(1), }(1), alias(1), alloc(1), bg(1), bind(1), bindkey(1), break(1), breaksw(1), builtins(1), case(1), cd(1), chdir(1), command(1), complete(1), continue(1), default(1), dirs(1), do(1), done(1), echo(1), echotc(1), elif(1), else(1), end(1), endif(1), endsw(1), esac(1), eval(1), exec(1), exit(1), export(1), false(1), fc(1), fg(1), filetest(1), fi(1), for(1), foreach(1), getopts(1), glob(1), goto(1), hash(1), hashstat(1), history(1), hup(1), if(1), jobid(1), jobs(1), kill(1), limit(1), local(1), log(1), login(1), logout(1), ls-F(1), nice(1), nohup(1), notify(1), onintr(1), popd(1), printenv(1), printf(1), pushd(1), pwd(1), read(1), readonly(1), rehash(1), repeat(1), return(1), sched(1), set(1), setenv(1), settc(1), setty(1), setvar(1), shift(1), source(1), stop(1), suspend(1), switch(1), telltc(1), test(1), then(1), time(1), times(1), trap(1), true(1), type(1), ulimit(1), umask(1), unalias(1), uncomplete(1), unhash(1), unlimit(1), unset(1), unsetenv(1), until(1), wait(1), where(1), which(1), while(1) - shell built-in commands
printf(1)                - formatted output
printf(3), fprintf(3), sprintf(3), snprintf(3), asprintf(3), dprintf(3), vprintf(3), vfprintf(3), vsprintf(3), vsnprintf(3), vasprintf(3), vdprintf(3) - formatted output conversion
printf(9), uprintf(9), tprintf(9), log(9) - formatted output conversion
## Solaris 11

1. printf(1) /usr/share/man/man1/printf.1
_^Hp_^Hr_^Hi_^Hn_^Ht_^Hf - write formatted output

2. printf(3c) /usr/share/man/man3c/printf.3c
_^Hp_^Hr_^Hi_^Hn_^Ht_^Hf, fprintf, sprintf, snprintf, asprintf - print formatted output

3. gprintf(1) /usr/share/man/man1/gprintf.1
_^Hp_^Hr_^Hi_^Hn_^Ht_^Hf - format and print data

Yes, those are embedded backspaces, just in case you're still using Solaris with a line printer. col -b will clean them up, but I haven't added support for that yet.

[c02y]

@zanchey Yes, I just compile and install the fish from the latest source code, it works as expected. Thanks.

Platform: CentOS 6.5 32-bit

[zanchey]

Hooray!