This commit refactors `splits/2` implementation using `foreach` syntax
and reduces intermediate arrays. This refactoring removes an unnecessary
private (and undocumented) filter `_nwise` and closes#3148.
The introduction says all the usage examples (e.g. of truncate_stream,
etc) in the section use [0,[1]] as input, but they actually use [1,[2]].
["a",["b"]] seems better than [1,[2]] as the string values won't be
confusable with the indexes in <path>.
This comment predates the addition of $ARGS in jq 1.6, so there was no
way to access named arguments with an invalid identifier. Rather than
forbid such names, update the manual to clarify.
I also changed the behavior of limit/2 with negative count to emit an error, like nth/2 does.
Also, I redefined nth/2 using skip/2 to minimize the impact of growth of builtin filters.
* Fix typo in documentation for map_values
"map_value(f)" -> "map_values(f)"
* map_value => map_values also in the devolpment manual
---------
Co-authored-by: Emanuele Torre <torreemanuele6@gmail.com>
This commit temporarily reverts the commit that allows #\ "tcl-style"
comments everywhere and documents them, for the 1.7.1 patch release
cca1f7d18f.
\r is removed from the list of characters not allowed in a comment to
preserve that bugfix.
The description of the Alternative operator `//` was hard for me to grasp in its wording.
I suggest dividing the looong sentence into two parts. Since it is actually an alternative formulation, the sentence can be divided into the first formulation, and the alternative formulation.
* bugfix: comments were incorrectly being terminated by CR; for example
jq -n $'1 #foo\r'
fails to compile because the CR character terminates the comment, and
CR is not a valid character in jq syntax.
* improvement: comments fully support Tcl-style line continuation.
Previously this was only "supported" in `-f' scripts, whose first line
starts with "#!", and second line starts with # and ends with \, only
for the comment on the second line, only for one extra line.
* man: document comment syntax, which was previously undocumented.
* tests: add regression tests for the bugfix, and some tests for line
continuation in comments.
jq previously only allowed passing the inline script before -- (as if
they were options) even though one would expect the inline script to be
a positional argument.
Since jq previously also refused to run with a usage error if the script
was passed after -- (It was not assuming . as script as it does when
no arguments are passed), and positional arguments are allowed before --
and even before other options, it should not be a breaking change to
change that weird behaviour, and allow the script to appear after --.
It also simplifies the option parsing code a bunch.
Fixes#2918
This patch removes the weird behaviour of jv_invalid_with_msg(jv_null())
that returns jv_invalid() (i.e. empty), instead of a boxed jv_null().
The previous behaviour of null|error was obviously unintentional, and
allowing is jv_invalid_with_msg() to return values on which you can't
call jv_invalid_get_msg() is only error prone.
The option naming --nul-output was confusing, especially when we have a
similar option for input stream in the future (--nul-input vs --null-input).
Based on the observation of other command line tools, we rename the option
to --raw-output0. We also drop the short option -0 to avoid confusion on
introducing the NUL-delimited input option.
Unlike the other command line tools outputting file names with NUL delimiter,
jq deals with JSON, and its strings may contain NUL character. To protect
users from the risk of injection attacks, we abort the program and print an
error message before outputting strings including NUL character. Closes#2683.
- Add error/0 and mentions null input behavior (close#2231)
- Explain value iterator suffix syntax .foo[] (close#1047)
- Mention array slicing is also zero-based (close#2094)
- Add examples of input and inputs filters (close#2216, close#2470)
- Improve sort_by about multiple values (close#2103, close#2467, close#2474)
- Improve foreach section and simplify examples (close#1148, close#2169)
- Fix recurse/1 document on how it is identical using recurse/2 (close#2036, close#2412)
- Add non-string examples of index/1, rindex/1 (close#1422)
- Simplify the example of truncate_stream/1 (close#1736)
Brahm Lower