Commit Graph

307 Commits

Author SHA1 Message Date
Kurtis Rader
c75c6b4204 fix typo in unit test 2017-06-09 13:35:00 -07:00
Kurtis Rader
6c4a51d56e improve bash history importing
Reject more invalid commands from the bash history file.

Fixes #3636
2017-05-20 21:03:31 -07:00
Kurtis Rader
e6e1805c5f another step in fixing issue #3985
This changes all of the builtins to behave like `string` to return
STATUS_INVALID_ARGS (121) if the args passed to the command don't make
sense. Also change several of the builtins to use the existing symbols
(e.g., STATUS_CMD_OK and STATUS_CMD_ERROR) rather than hardcoded "0"
and "1" for consistency and to make it easier to find such values in
the future.

Fixes #3985
2017-05-07 21:20:31 -07:00
Kurtis Rader
fb54d34788 change string match --filter to --entire
Per discussion in PR#3998 to review adding a `--filter` flag to `string
replace` rename the same flag in the `string match` subcommand to avoid
confusion about the meaning of the flag.
2017-05-01 22:19:58 -07:00
Kurtis Rader
16816a1202 add string replace --filter flag
Fixes #3348
2017-05-01 22:07:30 -07:00
Kurtis Rader
6b1c939b67 rename --metadata to --details
Discussion in issue #3295 resulted in a decisions to rename the
functions --metadata flag to --details.

This also fixes a bug in the definition of the short flags for the
`functions` command. The `-e` flag does not take an argument and
therefore should not be defined as `e:`. Notice that the long form,
`--erase`, specifies `no_argument`. This discrepency happened to work
due to a quirk of how the flag parsing loop was written.
2017-04-30 20:21:40 -07:00
David Adam
4fde67fa50 implement disown builtin
Closes #2810.

The syntax mirrors that of zsh.
2017-04-29 19:20:03 +08:00
Marc Garcia Sastre
980af4aa5b status returns the function name when called with -u parameter
Fixes #1743
2017-04-26 20:15:45 -07:00
Kurtis Rader
5b6814d6ad add string match --filter flag
Fixes #3957
2017-04-24 21:45:06 -07:00
Kurtis Rader
f1d40a3c7c limit bind mode names to the rules for var names
The bind mode names can be, and are, used in the construction of fish
variable names. So don't allow users to use names that are not legal as
a variable name. This should not break anything since, AFAICT, no
existing fish scripts, including those provided by Oh-My-Fish and
Fisherman define bind modes that would not be legal with this change.

Fixes #3965
2017-04-22 20:33:56 -07:00
Fabian Homborg
c0d80ab996 Tighten MANPATH test
This is to fix tests on Travis, since that stores the commit message in an environment variable.

`env | grep MANPATH` of course picks it up and generates unwanted output.

Yes.
2017-04-18 22:42:38 +02:00
Kurtis Rader
3ade72266c fix bug I introduced by previous squash merge
When I squash merged to create commit a9db99ac5 I overlooked updating
the unit test.
2017-04-17 21:23:03 -07:00
Ivan Trubach
a9db99ac52 Rename replace-one to replace_one
Fixes invalid character in variable name $fish_cursor_replace-one (used by fish_vi_cursor[_handle]) by renaming bind mode 'replace-one' to 'replace_one'.
2017-04-17 21:10:23 -07:00
Kurtis Rader
0be8d0d385 another __fish_sgrep replacement 2017-04-13 23:14:36 -07:00
Kurtis Rader
ef313dc8c5 a step to remove __fish_sgrep per issue #2450 2017-04-11 21:53:13 -07:00
Kurtis Rader
c272584fec a step to remove __fish_sgrep per issue #2450 2017-04-11 21:46:46 -07:00
Andreas Nordal
08d42a0507 Error message prefix: Prefix the message, not the context
Fixes #3649
2017-04-11 20:00:29 -07:00
Marc Garcia Sastre
8213885491 Capture read command contents without displaying it via a silent flag.
Implement a `read --silent` flag. This echos the input using an
obfuscation character.
2017-04-11 19:06:48 -07:00
Kurtis Rader
da09a915f2 improve __fish_complete_directories function
Reviewing a PR for a completion script caused me to look at the
implementation for the `__fish_complete_directories` function. Which in
turn lead me to create this change to improve its implementation and add
unit tests for the function.
2017-04-11 13:45:53 -07:00
Kurtis Rader
75600b6b53 fix setenv and add unit tests
Fixes #3937
2017-04-05 15:31:13 -07:00
Fabian Homborg
3edb7d538f Improve bg argument handling
- Error out if anything that is not a PID is given

- Otherwise background all matching existing jobs, even if not all
  PIDs exist (but print a message for the non-existing ones)

Fixes #3909.
2017-04-04 14:59:43 +02:00
Kurtis Rader
62244f01c2 fix umask handling of symbolic modes
This fixes the handling of symbolic umask values. It also removes two
invocations of `perl` and all but two `math` commands.

Fixes #738
2017-03-28 16:28:24 -07:00
Fabian Homborg
70354f9f5e Add bind --list-modes option
Fixes #3872.
2017-03-20 16:42:53 +01:00
Kurtis Rader
f0469d829a string repeat of an empty string is an error
Fixes #3898
2017-03-15 13:55:53 -07:00
Kurtis Rader
1afea1b650 add description to functions -m -v output
Fixes #597
2017-03-13 20:52:31 -07:00
Greynad
98f4e49669 Add string 'repeat' subcommand
This feature add the ability to repeat a string a given number of times.
For example: string repeat -n 3 foo
2017-03-12 20:30:36 -07:00
Kurtis Rader
7a9efa7930 tweak gitignore rules for *tests* directory 2017-02-20 20:29:43 -08:00
Kurtis Rader
9dd0c47d0b harden alias against foo; bar
If the first word of the alias body ends with a semicolon we need to
strip that character, and otherwise escape the extracted command, to
ensure the subsequent function definition is valid.

Fixes #3860
2017-02-20 20:23:55 -08:00
Kurtis Rader
992e1d0059 use a consistent ERANGE message
The previous change neglected to consider that numbers too large for the
long long datatype will result in calling strerror(ERANGE) whose return
value can vary depending on the platform. Which breaks the unit test.
2017-02-20 18:43:13 -08:00
Kurtis Rader
3d0a377e26 correct printf handling of %x with long ints
Fixes #3352
2017-02-20 17:58:08 -08:00
Kurtis Rader
af7f5f42b6 put upper bound on data read will consume
This puts a hard upper bound of 10 MiB on the amount of data that read
will consume. This is to avoid having the shell consume an unreasonable
amount of memory, possibly causing the system to enter a OOM condition,
if the user does something non-sensical.

Fixes #3712
2017-02-09 21:04:46 -08:00
Kurtis Rader
0541a34201 improve bash command history importing
Fixes #2091
2017-02-08 20:50:57 -08:00
Kurtis Rader
44cfe3e340 remove dependency on xxd
Fixes #3797
2017-01-31 22:10:53 -08:00
Kurtis Rader
06282f02fd don't run fish_update_completions in unit tests
Running `fish_update_completions` in unit tests is not needed and
hideously expensive. To the point it can cause flakey test behavior.
2017-01-29 18:00:48 -08:00
Kurtis Rader
a447a9aeff correct handling of SIGHUP by interactive fish
This is a partial fix for issue #3737. It only addresses the SIGHUP
aspect of the problem. Fixing SIGTERM is TBD.
2017-01-24 15:24:13 -08:00
Kurtis Rader
64485167e9 Revert "correct handling of SIGHUP by interactive fish"
This reverts commit 31adc221d9.
2017-01-24 07:34:15 -08:00
Kurtis Rader
31adc221d9 correct handling of SIGHUP by interactive fish
This is a partial fix for issue #3737. It only addresses the SIGHUP
aspect of the problem. Fixing SIGTERM is TBD.
2017-01-23 19:42:27 -08:00
ridiculousfish
812e977e62 Clean up /tmp/fish_chunked_read_test.txt after tests 2017-01-21 12:47:05 -08:00
ridiculousfish
5a5a6a6968 Correctly handle multiple chunks from read_in_chunks
read_in_chunks does not clear the intermediate string 'str'
between iterations, so every chunk has every other chunk prepended
to it.

A secondary issue is that it calls str2wcstring() on an intermediate
chunk, which may split multi-byte sequences. This needs to be deferred
to the end.

Test added. Fixes #3756
2017-01-21 12:43:20 -08:00
Kurtis Rader
2e38cf2a4b implement means to learn about a functions source
This implements a way to use the `functions` command to perform
introspection to learn about the characteristics of a function. Such as
where it came from.

Fixes #3295
2017-01-20 21:48:41 -08:00
Kurtis Rader
5809608bd2 implement chunked reads
Provide a more efficient method for reading lines (or null terminated
sequences) when the input is seekable.

Another partial fix for #2007
2017-01-14 20:51:54 -08:00
Fabian Homborg
7ffcb828fe Add test for long numbers in math
This should catch the error in 26e781ef5a.
2016-12-29 14:00:15 +01:00
ridiculousfish
dce9453d25 Add a new completion test for optional arguments 2016-12-21 15:46:46 -08:00
Olivier Perret
1ace742b6c implement an improved random command
Fixes #2642
2016-12-20 16:46:33 -08:00
Kurtis Rader
9f8d854c2a fix race condition in fkr test 2016-12-19 17:44:54 -08:00
ridiculousfish
05a640b027 Increase test coverage and improve completion commenting 2016-12-09 12:14:35 -08:00
ridiculousfish
8e1661cd22 Add a test for complete and -- 2016-12-08 02:00:24 -08:00
Michael Steinert
e2ed561264 Fixes behavior of 'x' in normal mode
After 'x' is used to delete a character at the end of a line the cursor
should be repositioned at the last character, i.e. repeatedly pressing
'x' in normal mode should delete the entire string.
2016-12-01 16:23:59 -08:00
Radomír Bosák
1fbcb1ee9d Add the possibility to rename abbreviations
The abbr function doesn't have the possiblity to rename abbreviations.
You have to delete the old one and create a new one. This commit adds
this functionality and uses the syntax:

abbr -r OLD_KEY NEW_KEY

Fixes #2155.
2016-12-01 14:42:20 -08:00
Kurtis Rader
7cfe028b9d fix functions --copy
Fixes #3601
2016-11-28 18:04:37 -08:00
Kurtis Rader
54a76bb9e5 emit error message when test is given invalid int
This augments the previous change for issue #3346 by adding an error
message when an invalid integer is seen. This change is likely to be
controversial so I'm not going to squash it into the previous change.
2016-11-27 20:37:30 -08:00
Kurtis Rader
320cb6857f an invalid flag to function is handled wrong
Specifically, an invalid flag keeps the function from being defined but
does not emit an error message.

Fixes #2827
2016-11-22 16:17:51 -08:00
Kurtis Rader
acd8363c38 allow complete -d ''
There isn't a good reason to disallow an explicitly empty completion
description. Since I'm touching the code also modify the argument
parsing the match the style of most of the builtins.

Fixes #3557.
2016-11-17 14:53:50 -08:00
Kurtis Rader
2e81ade66a don't use set_color reset
There was a discussion recently on Gitter about `set_color reset`. The
result was @floam creating commit bd03c3fbc to change it to `set_color
normal` in share/functions/vared.fish. This does the same for
tests/test_util.fish.
2016-11-11 19:07:52 -08:00
Kurtis Rader
9e922a6e02 make status saner vis-a-vis arg parsing
The `status` command currently silently allows incompatible flags (i.e.,
subcommands). Too, using flags to specify subcommands misleads the user
into thinking they can specify multiple subcommands.

We recently modified the `history` command to deprecate using flags for
subcommands. This change does the same for the `status` command.

Fixes #3509
2016-11-07 12:11:08 -08:00
Kurtis Rader
f490b56378 make history searching case insensitive by default
Fixes #3236
2016-10-16 20:18:16 -07:00
Kurtis Rader
c07c98ac05 eliminate many "unused parameter" warnings
Partially addresses issue #3430.
2016-10-09 14:38:26 -07:00
Kurtis Rader
f7f39b8c90 make fish's realpath compatible with GNU realpath
After implementing `builtin fish_realpath` it was noticed that it did
not behave like GNU `realpath` without options. Which is super annoying
since that was the whole point of implementing the command. Major
failure on my part since I wrote the unit tests to match the behavior of
the existing `wrealpath()` function that I simply exposed as a builtin
command. Rather than actually verifying it behaved in a manner
compatible with GNU realpath.

Also, while the decision to call the builtin `fish_realpath` seemed to
make sense at the time of the original commit further reflection has
shown that to be a silly, idiosyncratic, thing to have done. So rename
it to simply `realpath`.

Fixes 3400
2016-10-04 20:19:44 -07:00
Kurtis Rader
204e79105a allow customizing history --show-time format
It would make fish more friendly if we allowed the user to specify the
format of the history entry timestamps.

Fixes #3361
2016-09-20 20:14:02 -07:00
Kurtis Rader
93bea5b321 make unit tests more hermetic regarding env vars
Specifically, the `TERM` and `ITERM_PROFILE` env vars. If we don't set
them to known values the unit tests can fail in unexpected ways.

Fixes #3395
2016-09-19 22:13:55 -07:00
Kurtis Rader
76c73aa8ce alter history sub-command handling
This deprecates the use of long options for history sub-commands (e.g.,
`history --delete`) in favor of proper sub-commands (e.g., `history
delete`). It also eliminates the short options for those sub-commands.

Also change option processing to allow options anywhere on the command
line to match how the vast majority of fish builtins handle flags.

Replace --with-time with --show-time.

Fixes #3367
2016-09-18 20:09:06 -07:00
Kurtis Rader
87a532f533 make it hard to use history command incorrectly
Fixes #3307
2016-09-09 19:23:06 -07:00
Aaron Gyes
87fd9bca02 Group history items together with timestamps on separate line (#3333 from floam/historyout) 2016-09-07 07:57:06 -07:00
Aaron Gyes
3d6cb59b31 Use %Y-%m-%d %H:%M:%S format, update tests
Update history docs.

Note - the omission of a mention of timezone was intentional. These were recorded as naive timestamps lacking timezone information in the first place.
2016-09-07 07:52:45 -07:00
Kurtis Rader
363fa0a598 make printf test resilient to missing locale
Another dev noticed that tests/printf.in was failing because they didn't have
the fr_FR.UTF-8 locale installed. Make that test more resilient by trying
other locales and if no suitable locale is found skipping the test.
2016-09-05 20:59:09 -07:00
Kurtis Rader
6b1801063b fix raw_string_to_scalar_type locale handling
Fixes #3334
2016-09-02 18:48:16 -07:00
Kurtis Rader
cfefaaf4ee revert the --shadow-builtin flag
Implementing the --shadow-builtin flag has proven to be highly controversial.
Revert the introduction of that flag to the `function` command. If someone
shoots themselves in the foot by redefining a builtin as a function that's
their problem and not our responsibility to protect them from doing so.

Fixes #3319
2016-08-24 22:56:19 -07:00
Kurtis Rader
710addde16 fix history --delete regression
The recent change to reconcile the history builtin command and function
broke an undocumented behavior of `history --delete`. This change
reinstates that behavior. It also adds an explicit `--exact` search mode
for the `--search` and `--delete` subcommands.

Fixes #3270
2016-08-10 21:51:01 -07:00
Fabian Homborg
93b9e7443e Share some bindings between vi- and emacs-mode
This undoes the inheritance since it shared too much.

The idea here is to share bindings that aren't something the editors we're inspired by do - there's no "execute" in vi.
The basic editing and moving bindings are now vi-style in vi-mode and emacs-style in default mode.
2016-08-04 14:03:13 +02:00
Kurtis Rader
b53f42970c correct handling of history args
This fixes several problems with how the builtin `history` command handles
arguments. It now complains and refuses to do anything if the user specifies
incompatible actions (e.g., `--search` and `--clear`). It also fixes a
regression introduced by previous changes with regard to invocations that
don't explicitly specify `--search` or a search term.

Enhances the history man page to clarify the behavior of various options.

This change is already far larger than I like so unit tests will be added
in a separate commit.

Fixes #3224.

Note: This fixes only a couple problems with the interactive `history
--delete` command in the `history` function. The main problem will be
dealt with via issue #31.
2016-07-20 21:18:48 -07:00
Kurtis Rader
512506f0f9 don't print internal token in error message
Attempting to execute something like `exec "$test"` results in a fish internal
token (a Unicode private use char) being printed in the resulting error
message. That's obviously not desirable as well as confusing.

Fixes #3187
2016-07-10 20:02:39 -07:00
Kurtis Rader
14c7cfa84b make kill/pkill completions more robust (#3200)
Someone running fish in an unusual locale reported that an `assert()` was
firing when they typed `pkill c`. I traced it to two bugs. First, the
__fish_make_completion_signals command was producing a weird result. Second,
the builtin `complete` command wasn't adequately verifying its arguments.

Fixes #3129
2016-07-07 18:44:35 -07:00
Kurtis Rader
2f0cb2a32b remove the tests/*.status files
The tests/*.status files aren't useful so eliminate them. Just verify whether
a given test module exited with a success status. There isn't any point in
having a "status" file that indicates the test module should exit with a
success (zero) status.

Closes #3208
Closes #3209
2016-07-06 21:37:29 -07:00
Kurtis Rader
68e167d576 f-k-r should use the user's locale
I did some research and experiments. For good or bad the `bind` command
requires the use of wide char codepoints (e.g., \u1234) for non-ASCII
chars.  So don't force the use of the POSIX locale, but do provide it as
an option for people who want to see the individual bytes rather than a
decoded wide char.

Simplify the format of the information displayed for each character. There
really isn't much point in providing decimal, octal, and hexadecimal. Just
print hex and symbolic representations.

Add an example `bind` command that a user can copy/paste.

Closes #3183
2016-06-30 20:49:56 -07:00
Kurtis Rader
d7bc20c933 don't allow f-k-r to run if stdin/stdout not a tty
Another developer noticed that redirecting stdin of `fish_key_reader`
results in weird behavior.  Which is not at all surprising. So add checks
to ensure stdin and stdout are attached to a tty.

Add some rudimentary unit tests for this program.
2016-06-26 21:51:00 -07:00
Aaron Gyes
7ab65595cb 'jobs.status' change missing from last commit. 2016-06-18 08:33:42 -07:00
Aaron Gyes
2cabcf4ad4 bg had also had wrong exit code for some errors
Stop printing usage information when error isn't a usage problem.
Add simple test for bg and fg
2016-06-18 08:26:07 -07:00
Kurtis Rader
0ca103686f remove unset vars from the environment
Remove vars from the environment that are no longer set. Simplify the code by
removing an unnecessary loop. Add some tests.

Fixes #3124
2016-06-15 22:10:11 -07:00
ridiculousfish
3a7719015d Don't allow specifying an fd with a caret redirection
For example, an argument 12345^ is a real argument, not a redirection
There's no reason to use ^ here instead of >, and it's annoying to git
users.

Fixes #1873
2016-06-12 02:16:46 -07:00
Corey Ford
9d2092bf9f don't print header for each job 2016-06-08 21:15:07 -07:00
Kurtis Rader
0b385f145c simplify, and fix, setting the current locale
Fix test setup bogosities. Specifically, they weren't hermetic with respect to
locale env vars.

Rewrite the handling of locale vars to simplify the code and make it more like
the pattern most programs employ.

Fixes #3110
2016-06-05 15:49:34 -07:00
Beni Cherniavsky-Paskin
63a851cfd6 mention nullglob exceptions in failglob error msg 2016-06-02 19:51:19 -07:00
Fabian Homborg
8d6735cb41 Make string match -rnv work
Fixes #3098.
2016-05-31 23:24:08 +02:00
Kurtis Rader
d1208386d2 tty driver ignore lnext (\cV) and werase (\cW)
Configure the tty driver to ignore the lnext (\cV) and werase (\cW) characters
so they can be bound to fish functions.

Correct the `fish_key_bindings` program to initialize the tty in the same
manner as the `fish` program.

Fixes #3064
2016-05-25 12:05:39 -07:00
Fabian Homborg
8b44358c53 Bring abbr test in line with new behavior
Previously, `--erase` would not accept any options and wouldn't read
"--" as option-separator. Now it does like every other "command", and it
could conceivably gain e.g. a "--prefix" option.
2016-05-23 20:19:22 +02:00
Fabian Homborg
309e10e7a2 Don't mangle arguments in abbr
This now (rightly) throws an error if there's a space in the
key (because we can't store it).

Fixes #2997.
2016-05-23 19:59:02 +02:00
Kurtis Rader
73f2992a2e make debug() output more useful
This change does several things. First, and most important, it allows
dumping the "n" most recent stack frames on each debug() call. Second,
it demangles the C++ symbols. Third, it prepends each debug() message
with the debug level.

Unrelated to the above I've replaced all `assert(!is_forked_child());`
statements with `ASSERT_IS_NOT_FORKED_CHILD()` for consistency.
2016-05-17 14:52:55 -07:00
Kurtis Rader
51468b7646 add function --shadow-builtin flag
It's currently too easy for someone to bork their shell by doing something
like `function test; return 0; end`. That's obviously a silly, contrived,
example but the point is that novice users who learn about functions are
prone to do something like that without realizing it will bork the shell. Even
expert users who know about the `test` builtin might forget that, say, `pwd`
is a builtin.

This change adds a `--shadow-builtin` flag that must be specified to
indicate you know what you're doing.

Fixes #3000
2016-05-14 20:38:32 -07:00
Kurtis Rader
d97c22df2d add floating point output to math command
This makes it easy for the user to request floating point output with the
desired number of digits after the decimal point (not to be confused with
significant digits).

Note that this is just a thin wrapper so someone can say `math -s3 10 / 3`
rather than `math "scale=3; 10 /3"`.

Resolves #1643
2016-05-03 19:29:04 -07:00
Kurtis Rader
5092904ea3 fix bind unit tests
In my rush to get the fix for the wrong default Vi mode escape delay merged
(commit 3e24ae80b3) I neglected to update the
unit test. This change corrects that oversight.
2016-04-28 21:12:58 -07:00
Kurtis Rader
6c329e8a83 provide a realpath implementation
Not all distros have a `realpath` command. Provide a function that uses the
real command if available else use the fish builtin.

Fixes #2932
2016-04-28 16:03:27 -07:00
Fabian Homborg
7ebafa53f6 Tests: Add fish_mode_prompt to except_prompt
Without this, the interactive tests fail when they receive a mode_prompt
in vi-mode.
2016-04-26 15:21:15 +02:00
Kurtis Rader
0993141334 retry flakey tests on failure
Fixes #2926
2016-04-11 16:47:46 -07:00
Kurtis Rader
59f0261dba enhance fish_indent to normalize keywords
Fish keywords can be quoted and split across lines. Prior to this change
`fish_indent` would retain such odd, obfuscated, formatting. This change
results in all keywords being converted to their canonical form.

This required fixing a bug: the keyword member of parse_node_t wasn't being
populated. This hadn't been noticed prior to now because it wasn't used.

Fixes #2921
2016-04-10 18:40:11 -07:00
Jak Wings
2d5eaed745 fix handling of line continuation in keywords
This behavior is more consistent with line continuation in strings other
than keywords.

Fixes #2897
2016-04-08 21:05:46 -07:00
ridiculousfish
e395a0eb69 Migrate PATH-completion logic from complete.cpp to expand.cpp
Prior to this fix, when completing a command that doesn't have a /, we
would prepend each component of PATH and then expand the whole thing. So
any special characters in the PATH would be interpreted when performing
tab completion.

With this fix, we pull the PATH resolution out of complete.cpp and
migrate it to expand.cpp. This unifies nicely with the CDPATH resolution
already in that file. This requires introducing a new expand flag
EXPAND_SPECIAL_FOR_COMMAND, which is analogous to EXPAND_SPECIAL_CD
(which is renamed to EXPAND_SPECIAL_FOR_CD). This flag tells expand to
resolve paths against PATH instead of the working directory.

Fixes #952
2016-04-07 20:15:32 -07:00
Aaron Gyes
790c7f80c7 Implement an --invert/-v for string match, like grep -v.
Only lines that do not match the pattern are shown.
2016-04-08 10:49:29 +08:00
Kurtis Rader
02f18cae0a fix setting of $argv for source w/no args
Fixes #139
2016-04-06 13:04:44 -07:00
Kurtis Rader
4ff8e6e781 change how redirections are formatted
Modify `fish_indent` to emit redirections without a space before the target of
the redirection; e.g., "2>&1" rather than "2>& 1" as the former is clearer to
humans.

Fixes #2899
2016-04-05 19:29:23 -07:00
Kurtis Rader
c2f1df1d4a fix handling of non-ASCII chars in C locale
The relevant standards allow the mbtowc/mbrtowc functions to reject
non-ASCII characters (i.e., chars with the high bit set) when the locale
is C or POSIX.  The BSD libraries (e.g., on OS X) don't do this but
the GNU libraries (e.g., on Linux) do. Like most programs we need the
C/POSIX locales to allow arbitrary bytes. So explicitly check if we're
in a single-byte locale (which would also include ISO-8859 variants)
and simply pass-thru the chars without encoding or decoding.

Fixes #2802.
2016-03-20 18:47:38 -07:00