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55956 commits 1 branch 0 tags 230 MiB
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28 commits

Author SHA1 Message Date
Ali Mohammad Pur
2d1c5dbfcb Shell: Allow word-expansion of ${var}, $N, $* and $- 
Fixes #21463.
 2023-10-17 11:02:48 -06:00
Ali Mohammad Pur
91bb3af505 Shell: Implement the '$*' special variable in the POSIX parser 
Fixes #21421.
 2023-10-16 19:11:37 +03:30
Ali Mohammad Pur
dc495e299e Shell: Add support for the bashy list literals in POSIX mode 
This is currently only allowed in assignments, where x=(...) is parsed
as the assignment of the list (...) to the variable x.
 2023-10-07 22:16:35 +03:30
Ali Mohammad Pur
986130d9ea Shell: Accept IoNumber as a valid redirection target 2023-10-02 21:21:38 +02:00
Ali Mohammad Pur
0214e9b905 Shell: Rewrite 'FOR NAME do ... done' according to Dr.POSIX 
Dr.POSIX says this form of the loop is supposed to iterate over exactly
`"$@"`, this commit makes us support that.
 2023-10-02 21:21:38 +02:00
Ali Mohammad Pur
764ea6104e Shell: Treat '(' and '{' as operators in POSIX mode 2023-10-02 21:21:38 +02:00
Ali Mohammad Pur
33a3f0e134 Shell: Implement close redirections in POSIX mode 
Fixes #20631.
 2023-08-31 11:02:57 +03:30
Lucas CHOLLET
3f35ffb648 Userland: Prefer _string over _short_string 
As `_string` can't fail anymore (since 3434412), there are no real
benefits to use the short variant in most cases.
 2023-08-08 07:37:21 +02:00
Andreas Kling
34344120f2 AK: Make "foo"_string infallible 
Stop worrying about tiny OOMs.

Work towards #20405.
 2023-08-07 16:03:27 +02:00
Ali Mohammad Pur
da7bf5f785 Shell: Add support for the '!' POSIX pipeline prefix 
This prefix simply inverts the exit code of the pipeline, which we
implement using the 'not' builtin.
 2023-08-04 13:28:59 +03:30
Ali Mohammad Pur
1c1aa2c0d0 Shell: Handle (most) errors in the parsers 
This turns all errors into either "OOM" or a proper shell error (if
propagation is impossible or meaningless).
Fixes `echo -en '\xfe\x4a' | $SHELL` crashing.
 2023-07-01 17:01:54 +03:30
Ali Mohammad Pur
0d8b90aec6 Shell: Allow newlines before do in POSIX for loops 2023-05-05 09:35:24 +03:30
Ali Mohammad Pur
fca5a34ad3 Shell: Allow assignment-prefixed commands to run builtins 
`env` is not capable of running shell builtins, so make a simple
builtin in its place.
 2023-05-05 09:35:24 +03:30
Ali Mohammad Pur
aecd91aedc Shell: Correctly handle escaped quote characters in strings 
Previously "foo\`bar" was treated literally, but \` is a valid escape
character.
This commit makes that string correctly evaluate as "foo`bar".
 2023-05-05 09:35:24 +03:30
Ali Mohammad Pur
bbfedf17b7 Shell: Actually execute loop/case bodies when running them 2023-05-05 09:35:24 +03:30
Ali Mohammad Pur
7b031138fc Shell: Correctly handle commands after heredoc contents 
Previously we did not emit a newline after the ending heredoc key, which
wreaked havoc on the parser logic, leading to parse errors.
 2023-05-05 09:35:24 +03:30
Ali Mohammad Pur
93413f8682 Shell: Use the correct range for named variable expansions 
Previously we were starting the variable expansions before the starting
'$' and calculating the wrong length, this commit makes it so we
calculate the right range for them.
 2023-05-05 09:35:24 +03:30
Tim Schumacher
9a6b5a53a7 Shell: Correctly mark the end line of a parsed list 2023-03-29 03:39:09 +03:30
Tim Schumacher
46c22ee49d Shell: Allow appending empty string literals 
Otherwise, we just silently drop arguments that are empty strings.
 2023-03-29 03:39:09 +03:30
Tim Schumacher
c26639eac2 Shell: Properly skip POSIX Fi tokens 2023-03-29 03:39:09 +03:30
Ali Mohammad Pur
7c312980b0 Shell: Implement arithmetic expansions for POSIX mode 
This also adds a 'math' immediate function that can be used in Shell
proper to do arithmetic stuff.
 2023-03-22 09:46:16 +01:00
Andreas Kling
8a48246ed1 Everywhere: Stop using NonnullRefPtrVector 
This class had slightly confusing semantics and the added weirdness
doesn't seem worth it just so we can say "." instead of "->" when
iterating over a vector of NNRPs.

This patch replaces NonnullRefPtrVector<T> with Vector<NNRP<T>>.
 2023-03-06 23:46:35 +01:00
Linus Groh
51c3967516 Everywhere: Use '_{short_,}string' literals more 
This mostly updates code what was written before but merged after these
were added.
 2023-02-28 15:15:36 +00:00
Ali Mohammad Pur
b2b851b361 Shell: Convert the POSIX parser/lexer to ErrorOr 2023-02-28 15:52:24 +03:30
Ali Mohammad Pur
beeb58bd93 Shell+LibCodeComprehension: Start replacing {Deprecated => }String 
This starts by switching all AST members to Strings, and dealing with
the fallout.
 2023-02-28 15:52:24 +03:30
Ali Mohammad Pur
99d264afbe Shell: Correct the out-of-bounds expansion bailing condition 
Also adds a couple (useful) debug prints which helped track down the
problem.
 2023-02-18 06:55:46 +03:30
Ali Mohammad Pur
2881bb4c3a Shell: Add support for heredocs to the POSIX parser 2023-02-18 06:55:46 +03:30
Ali Mohammad Pur
2a276c86d4 Shell: Start implementing a POSIX-compliant parser 
The parser is still very much a work-in-progress, but it can currently
parse most of the basic bits, the only *completely* unimplemented things
in the parser are:
- heredocs (io_here)
- alias expansion
- arithmetic expansion

There are a whole suite of bugs, and syntax highlighting is unreliable
at best.
For now, this is not attached anywhere, a future commit will enable it
for /bin/sh or a `Shell --posix` invocation.
 2023-02-13 23:00:15 +03:30