Commit Graph

19 Commits

Author SHA1 Message Date
Johannes Altmanninger
3bf11be491 Fix tests for 0c74ff4209 2020-02-29 10:54:53 +01:00
Johannes Altmanninger
1410f938aa read: discard IFS delimiters before the last token
Do this only when splitting on IFS characters which usually contains
whitespace characters --- read --delimiter is unchanged; it still
consumes no more than one delimiter per variable. This seems better,
because it allows arbitrary delimiters in the last field.

Fixes #6406
2019-12-19 23:44:58 +01:00
Mahmoud Al-Qudsi
c2cfc65cf2 Correct read behavior for unset values and update tests accordingly
`read` with IFS empty was expected to set all parameters after the first
n filled variables to an empty string, but that was inconsistent with
the behavior of `read` everywhere else.

I'm not sure why fish differed from the spec with regards to the
behavior in the event of an empty IFS: we eschew IFS where possible, yet
here we adopt non-standard behavior splitting on every (unicode)
character instead of not splitting at all with IFS empty. We still do
that, but now the unset variables are treated as they normally would be,
i.e. cleared and not set to an empty string (which is what an empty
value between two IFS separators would contain).
2018-04-17 21:34:22 -05:00
Fabian Homborg
ea49c14c62 Fix read to stdout output appearing first
echo banana (read)

will output whatever read reads _first_ because it uses a direct
write_loop().

This also removes some duplicate code.
2018-04-10 21:45:28 +02:00
Mahmoud Al-Qudsi
101ada83cb Fix unit tests for read to stdout behavior 2017-10-10 08:34:50 +02:00
Kurtis Rader
728a4634a1 replace var_entry_t with env_var_t
This is a step to storing fish vars as actual vectors rather than flat
strings.
2017-08-14 18:18:09 -07:00
Kurtis Rader
cddc4cfb1d fix set --show output
I realized I was printing individual var entries using zero based
indexing (like C++) when the indexes should be one based.
2017-08-04 17:08:25 -07:00
Kurtis Rader
e198ed0b2d use new logmsg and set --show in tests 2017-08-04 12:04:32 -07:00
Kurtis Rader
7619e62b70 use new logmsg and set --show in tests
Also modify `logmsg` to output additional separator lines to make the
demarcation between tests even clearer.
2017-08-03 21:25:20 -07:00
Fabian Homborg
b1866b18dc Implement read --delimiter
This takes a string that is then split upon like `string split`.

Unlike $IFS, the string is used as one piece, not a set of characters.

There is still a fallback to IFS if no delimiter is given, that
behaves exactly as before.

Fixes #4156.
2017-07-28 12:15:46 +02:00
Kurtis Rader
4a7aa98e93 modify read to require at least one var
Fixes #4220
2017-07-20 13:07:30 -07:00
Kurtis Rader
dc33c1afe1 change show test utility function
Due to how various tests show the status of variables I decided to
modify the `show` test utility function I recently added.
2017-07-19 22:28:24 -07:00
Kurtis Rader
5dc78dd858 fix regression involving read from scripts
Fixes #4206
2017-07-15 21:21:24 -07:00
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
Kevin Ballard
a012aedb31 Fix incorrect error on read with 1-character input
When `read` is given a single character of input (including the
newline), it was bailing as if it had been given no input. This is
incorrect.
2014-09-21 20:00:26 -07:00
Kevin Ballard
8f8c4cdd17 Implement new read --null flag
The `--null` flag to `read` makes it split incoming lines on NUL instead
of newlines. This is intended for processing the output of a command
that uses NUL separators (such as `find -print0`).

Fixes #1694.
2014-09-21 19:27:26 -07:00
Joseph Tannhuber
4acea72700 New -n option for read builtin
Usage: read -n nchars
Reads maximum of nchars characters. If nchars <= 0, there's no limit.
2014-09-03 22:48:37 -07:00
Kevin Ballard
7fce9e2411 Trim trailing newline on cmdsubst when IFS=''
When $IFS is empty, command substitution no longer splits on newlines.
However we still want to trim off a single trailing newline, as most
commands will emit a trailing newline and it makes it harder to work
with their output.
2014-08-29 12:48:45 -07:00
Kevin Ballard
973dd6ffbd read: Support arrays, character splitting
Enhance the `read` builtin to support creating an array with the --array
flag. With --array, only a single variable name is allowed and the
entire input is tokenized and placed into that variable as an array.

Also add custom behavior if IFS is empty or unset. In that event, split
the input on every character, instead of the previous behavior of doing
no splitting at all.
2014-07-14 00:46:38 -07:00