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currently the error messages have the shortopt hardcoded in them, even
when the user actually entered a longopt:
$ ./nsxiv --framerate v
nsxiv: Invalid argument for option -A: v
and as far as I see, there's no way to *reliably* tell weather we're
processing a longopt or a shortopt. perhaps we can do some shenanigangs
with `optind` but that seems finicky at best.
and it seems like other coreutils which support longopt has similar issues:
$ xargs --max-procs=z
xargs: invalid number "z" for -P option
utils like `grep` and `head` seems to work-around it by not mentioning the flag:
$ head --lines=z
head: invalid number of lines: ‘z’
$ grep --max-count=l
grep: invalid max count
this patch does the same thing as `grep/head` and omits the flag from
the error message.
Closes: https://codeberg.org/nsxiv/nsxiv/issues/368
Reviewed-on: https://codeberg.org/nsxiv/nsxiv/pulls/371
Reviewed-by: Berke Kocaoğlu <berke.kocaoglu@metu.edu.tr>
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strtol() returns a `long`, but we're storing the result in an `int`
which might end up getting truncated. change `n` to `long` and guard
against >INT_MAX arguments in cases where it matters.
use a float for storing argument of `-S`
change `opt.slideshow` to `unsigned` similar to `img.ss.delay`
Co-authored-by: Berke Kocaoğlu <berke.kocaoglu@metu.edu.tr>
Reviewed-on: https://codeberg.org/nsxiv/nsxiv/pulls/367
Reviewed-by: Berke Kocaoğlu <berke.kocaoglu@metu.edu.tr>
Reviewed-by: explosion-mental <explosion-mental@noreply.codeberg.org>
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simply running nsxiv with `--anti-alias` will enable anti-aliasing, and
running it with `--anti-alias=no` will disable it.
the cli flag will overwrite the config.h default.
Closes: https://codeberg.org/nsxiv/nsxiv/issues/349
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handle a rare, but possible case of argc being 0, in which case argv[0]
would be null.
note that both POSIX and ISO C standard allow argc to be 0 and in
practice this can be triggered via calling `exec(3)` family of functions
with NULL as the first `argv`.
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The suckless coding style [^0] and the linux coding style [^1] both
recommends not indenting switch cases. And it helps out people with
lower resolution monitors.
[^0]: https://suckless.org/coding_style/
[^1]: https://www.kernel.org/doc/html/v5.10/process/coding-style.html#indentation
Co-authored-by: explosion-mental <explosion0mental@gmail.com>
Reviewed-on: https://codeberg.org/nsxiv/nsxiv/pulls/358
Reviewed-by: NRK <nrk@disroot.org>
Co-authored-by: explosion-mental <explosion-mental@noreply.codeberg.org>
Co-committed-by: explosion-mental <explosion-mental@noreply.codeberg.org>
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Uses [optparse] to add support for long-opts. optparse is posix
compliant with getopt(3) and thus would be backwards compatible.
It does not have any dependency (not even the c standard library!) and
is C89 compatible and thus fits our current code-style.
[optparse]: https://github.com/skeeto/optparse
Note that we're using a couple `pragma`-s to silence some harmless
warnings. This should be portable because these pragma-s don't change the
behavior of the program. Furthermore, C standard mandates that unknown
pragma's should be ignored by the compiler and thus would not result in
build failure on compilers which do not recognize them.
Closes: https://codeberg.org/nsxiv/nsxiv/issues/328
Reviewed-on: https://codeberg.org/nsxiv/nsxiv/pulls/332
Reviewed-by: eylles <eylles@noreply.codeberg.org>
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* includes are sorted alphabetically
* their grouping and layout is the following:
- nsxiv.h will be the first include
- followed by any internal headers (e.g "commands.h" "config.h")
- followed by system headers (<stdlib.h> etc)
- followed by third party headers (X.h libwebp etc)
* also add `llvm-include-order` check to clang-tidy so that it can catch
unsorted includes during CI.
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* rm unused include <sys/types.h>
* move <sys/time.h> to main.c, it's the only file that needs it.
* move TV_* macros to main.c
* let *.c files explicitly include what they need instead of including
them at nsxiv.h
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Co-authored-by: NRK <nrk@disroot.org>
Co-authored-by: Berke Kocaoğlu <berke.kocaoglu@metu.edu.tr>
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this removes the cli flag `-T` as well as related config.h options.
Co-authored-by: Berke Kocaoğlu <berke.kocaoglu@metu.edu.tr>
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the goal here to mark functions and variables not used outside the
translation unit as static. main reason for this is cleanliness. however
as a side-effect this can help compilers optimize better as it now has
guarantee that a certain function won't be called outside of that
translation unit.
one other side-effect of this is that accessing these vars/function from
config.h is now different.
if one wants to access a static var/func from different translation unit
in config.h, he would have to create a wrapper function under the right
ifdef. for static functions one would also need to forward declare it.
here's a dummy example of accessing the function `run_key_handler` from
config.h under _MAPPINGS_CONFIG
```
static void run_key_handler(const char *, unsigned);
bool send_with_ctrl(arg_t key) {
run_key_handler(XKeysymToString(key), ControlMask);
return false;
}
```
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with this change `-0` is turned into a more generic switch which can be
used to send NULL-separated file-list to the key-handler as well.
this also means `-0` no longer implicitly enables `-o`
Closes: https://github.com/nsxiv/nsxiv/issues/140
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* tns_clean_cache: remove unused function arg
* remove malloc casting
* improve consistency
use sizeof(T) at the end
* avoid comparing integers of different signedness
* use Window type for embed and parent
* remove unnecessary comparisons
* remove cpp style comments
* improve consistency: remove comma from the end of enumerator list
* Removed useless _IMAGE_CONFIG defines
* consistency: use the same order as snprintf
* Resolve c89 warnings
Co-authored-by: uidops <uidops@protonmail.com>
Co-authored-by: Arthur Williams <taaparthur@gmail.com>
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* add -0 for outputting null-terminated list
this doesn't add much, if any, additional complexity to the codebase and
can be quite handy for scripting purposes.
Closes: https://github.com/nsxiv/nsxiv/issues/67
* Fix typo
Co-authored-by: Berke Kocaoğlu <berke.kocaoglu@metu.edu.tr>
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Co-authored-by: Guilherme Rugai Freire <41879254+GRFreire@users.noreply.github.com>
Co-authored-by: N-R-K <79544946+N-R-K@users.noreply.github.com>
Co-authored-by: NRK <nrk@disroot.org>
Co-authored-by: Arthur Williams <taaparthur@gmail.com>
Co-authored-by: eylles <ed.ylles1997@gmail.com>
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Co-authored-by: Guilherme Rugai Freire <41879254+GRFreire@users.noreply.github.com>
Co-authored-by: NRK <nrk@disroot.org>
Co-authored-by: Berke Kocaoğlu <berke.kocaoglu@metu.edu.tr>
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VERSION string between releases is last release suffixed with '+'.
Additionally, use output of git-describe instead of VERSION string, if it is
not empty.
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Closes #285.
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second while maintaining backward compatibiitiy with integer
arguments.
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- Functions warn() and die() replaced by GNU-like error(3) function
- Register cleanup() with atexit(3)
- Functions called by cleanup() are marked with CLEANUP and are not allowed to
call exit(3)
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- New option `-a`: Play animations at startup
- Ctrl-Space toggles animation for all GIF files
- Infinite loop for all animations
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- Scale mode is not reset to default value upon image loading anymore
- New default key binding to change mode to scale-down
- Removed scale mode setting from config.h
- Removed -d command line option, as this is now the default at startup
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Also removed now obsolete -p command line option; fixes issue #98
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Fixes issue #84
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