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21 hours agoetc/cpplint/cpplint.cfg: Ignore build/include_what_you_use master
Alejandro Colomar [Wed, 5 Nov 2025 17:59:58 +0000 (18:59 +0100)] 
etc/cpplint/cpplint.cfg: Ignore build/include_what_you_use

We already run iwyu(1) on a separate target (lint-c-iwyu).

Signed-off-by: Alejandro Colomar <alx@kernel.org>
21 hours agosrc/bin/, man/man1/grepc{,_c}.1: Various improvements to the scripts; mainly grepc(1)
Alejandro Colomar [Thu, 6 Nov 2025 11:21:21 +0000 (12:21 +0100)] 
src/bin/, man/man1/grepc{,_c}.1: Various improvements to the scripts; mainly grepc(1)

Signed-off-by: Alejandro Colomar <alx@kernel.org>
32 hours agosrc/bin/grepc_c: Use non-capturing groups where possible
Alejandro Colomar [Wed, 5 Nov 2025 23:39:39 +0000 (00:39 +0100)] 
src/bin/grepc_c: Use non-capturing groups where possible

Signed-off-by: Alejandro Colomar <alx@kernel.org>
32 hours agosrc/bin/grepc_c: -te, -tue: Reuse grepc_c_t_sue_decl_()
Alejandro Colomar [Wed, 5 Nov 2025 22:54:46 +0000 (23:54 +0100)] 
src/bin/grepc_c: -te, -tue: Reuse grepc_c_t_sue_decl_()

Signed-off-by: Alejandro Colomar <alx@kernel.org>
32 hours agosrc/bin/grepc_c: -tt: Add support for enums with underlying type
Alejandro Colomar [Wed, 5 Nov 2025 22:52:00 +0000 (23:52 +0100)] 
src/bin/grepc_c: -tt: Add support for enums with underlying type

Signed-off-by: Alejandro Colomar <alx@kernel.org>
32 hours agosrc/bin/grepc_c: -tt, -tut: Reuse code
Alejandro Colomar [Wed, 5 Nov 2025 22:48:37 +0000 (23:48 +0100)] 
src/bin/grepc_c: -tt, -tut: Reuse code

Signed-off-by: Alejandro Colomar <alx@kernel.org>
32 hours agosrc/bin/grepc_c: -tt: Remove negative lookahead
Alejandro Colomar [Wed, 5 Nov 2025 22:36:07 +0000 (23:36 +0100)] 
src/bin/grepc_c: -tt: Remove negative lookahead

It was useful when we had separate calls to pcre2grep(1) for each
pattern, but now that we call it once, it's fine to have overlapping
regexes.

Signed-off-by: Alejandro Colomar <alx@kernel.org>
32 hours agosrc/bin/grepc_c: -tut: Merge grepc_c_ut_su() and grepc_c_ut_td_su()
Alejandro Colomar [Wed, 5 Nov 2025 22:24:19 +0000 (23:24 +0100)] 
src/bin/grepc_c: -tut: Merge grepc_c_ut_su() and grepc_c_ut_td_su()

Signed-off-by: Alejandro Colomar <alx@kernel.org>
32 hours agosrc/bin/grepc_c: Split grepc_c_body_() and grepc_c_u_body_()
Alejandro Colomar [Thu, 6 Nov 2025 00:17:17 +0000 (01:17 +0100)] 
src/bin/grepc_c: Split grepc_c_body_() and grepc_c_u_body_()

grepc_c_u_body_() consumes a lot of resources unnecessarily.
This is especially true within grepc_c_t_td_braced(), which was crashing
with relatively small code.  The reason is that grepc_c_t_td_braced()
searches for code where the identifier is last, so it needs to store
a lot of code just in case.  For that, an optimized grepc_c_body_() is
more appropriate.

Signed-off-by: Alejandro Colomar <alx@kernel.org>
32 hours agosrc/bin/grepc_c: -tt, -tut: Reuse grepc_c_body_()
Alejandro Colomar [Wed, 5 Nov 2025 21:42:29 +0000 (22:42 +0100)] 
src/bin/grepc_c: -tt, -tut: Reuse grepc_c_body_()

In the last case, it removes part of the regex, but I believe that
wasn't necessary.

Also, while at this, make the trailing of the regexes to be consistently
'[^;];', which is simpler, and seems to work just fine.  If we ever see
some false positives or negatives with this regex, we should fix them
all at once, and maybe put them in a helper function.

Signed-off-by: Alejandro Colomar <alx@kernel.org>
32 hours agosrc/bin/grepc_c: -tt, -tut: Split regexes
Alejandro Colomar [Wed, 5 Nov 2025 21:27:59 +0000 (22:27 +0100)] 
src/bin/grepc_c: -tt, -tut: Split regexes

Signed-off-by: Alejandro Colomar <alx@kernel.org>
32 hours agosrc/bin/grepc_c: -te, -tue: Add support for enums with underlying type
Alejandro Colomar [Wed, 5 Nov 2025 17:29:48 +0000 (18:29 +0100)] 
src/bin/grepc_c: -te, -tue: Add support for enums with underlying type

This adds support for:

enum : int {
X
};

Signed-off-by: Alejandro Colomar <alx@kernel.org>
32 hours agosrc/bin/grepc_c: -te, -tue: Reuse code from function body
Alejandro Colomar [Wed, 5 Nov 2025 17:24:40 +0000 (18:24 +0100)] 
src/bin/grepc_c: -te, -tue: Reuse code from function body

A function body and an enum body are quite similar.
The same regex works for both.

Signed-off-by: Alejandro Colomar <alx@kernel.org>
32 hours agosrc/bin/grepc_c: -te, -tue: Reuse code
Alejandro Colomar [Wed, 5 Nov 2025 17:20:24 +0000 (18:20 +0100)] 
src/bin/grepc_c: -te, -tue: Reuse code

Signed-off-by: Alejandro Colomar <alx@kernel.org>
32 hours agosrc/bin/grepc_c: -tum: Split regexes for uses within function-like macros and other...
Alejandro Colomar [Wed, 5 Nov 2025 16:39:02 +0000 (17:39 +0100)] 
src/bin/grepc_c: -tum: Split regexes for uses within function-like macros and other macros

Signed-off-by: Alejandro Colomar <alx@kernel.org>
32 hours agosrc/bin/grepc_c: -tum: Merge grepc_c_m_repl_() and grepc_c_um_repl_()
Alejandro Colomar [Wed, 5 Nov 2025 16:33:29 +0000 (17:33 +0100)] 
src/bin/grepc_c: -tum: Merge grepc_c_m_repl_() and grepc_c_um_repl_()

Signed-off-by: Alejandro Colomar <alx@kernel.org>
32 hours agosrc/bin/grepc_c: -tum: Split regex part for the replacement list
Alejandro Colomar [Wed, 5 Nov 2025 16:29:05 +0000 (17:29 +0100)] 
src/bin/grepc_c: -tum: Split regex part for the replacement list

While splitting, improve the regex part in two ways:

-  Use a non-capturing group.  This improves performance.
-  Use negative lookahead instead of '[^\\]$'.  This allows matching
   a macro where the searched identifier is the last thing in the
   replacement list.

Signed-off-by: Alejandro Colomar <alx@kernel.org>
32 hours agosrc/bin/grepc_c: -tum: Reuse grepc_c_m_decl_()
Alejandro Colomar [Wed, 5 Nov 2025 16:18:07 +0000 (17:18 +0100)] 
src/bin/grepc_c: -tum: Reuse grepc_c_m_decl_()

Signed-off-by: Alejandro Colomar <alx@kernel.org>
32 hours agosrc/bin/grepc_c: -tm: Split regexes, and reuse code
Alejandro Colomar [Wed, 5 Nov 2025 16:08:38 +0000 (17:08 +0100)] 
src/bin/grepc_c: -tm: Split regexes, and reuse code

Signed-off-by: Alejandro Colomar <alx@kernel.org>
32 hours agosrc/bin/grepc_c: Organize regex parts together
Alejandro Colomar [Wed, 5 Nov 2025 15:40:44 +0000 (16:40 +0100)] 
src/bin/grepc_c: Organize regex parts together

Signed-off-by: Alejandro Colomar <alx@kernel.org>
32 hours agosrc/bin/grepc_c: Rename grepc_c_uf_body_() => grepc_c_f_body_()
Alejandro Colomar [Wed, 5 Nov 2025 15:34:25 +0000 (16:34 +0100)] 
src/bin/grepc_c: Rename grepc_c_uf_body_() => grepc_c_f_body_()

Signed-off-by: Alejandro Colomar <alx@kernel.org>
32 hours agosrc/bin/grepc_c: Use grepc_c_uf_body_() to replace grepc_c_f_body_()
Alejandro Colomar [Wed, 5 Nov 2025 15:33:09 +0000 (16:33 +0100)] 
src/bin/grepc_c: Use grepc_c_uf_body_() to replace grepc_c_f_body_()

Signed-off-by: Alejandro Colomar <alx@kernel.org>
32 hours agosrc/bin/grepc_c: -tuf: Reuse grepc_c_uf_body_()
Alejandro Colomar [Wed, 5 Nov 2025 15:29:03 +0000 (16:29 +0100)] 
src/bin/grepc_c: -tuf: Reuse grepc_c_uf_body_()

Signed-off-by: Alejandro Colomar <alx@kernel.org>
32 hours agosrc/bin/grepc_c: -tuf: Split regex for the function body
Alejandro Colomar [Wed, 5 Nov 2025 15:27:26 +0000 (16:27 +0100)] 
src/bin/grepc_c: -tuf: Split regex for the function body

Signed-off-by: Alejandro Colomar <alx@kernel.org>
32 hours agosrc/bin/grepc_c: -tuf: Fix regex
Alejandro Colomar [Wed, 5 Nov 2025 15:07:30 +0000 (16:07 +0100)] 
src/bin/grepc_c: -tuf: Fix regex

Fixes: 91c6563acf5e (2025-10-29; "grepc, grepc.1: Add -tu to search for uses")
Signed-off-by: Alejandro Colomar <alx@kernel.org>
32 hours agosrc/bin/grepc_c: -tuf: Reuse grepc_c_fld_decl_()
Alejandro Colomar [Wed, 5 Nov 2025 14:44:02 +0000 (15:44 +0100)] 
src/bin/grepc_c: -tuf: Reuse grepc_c_fld_decl_()

Signed-off-by: Alejandro Colomar <alx@kernel.org>
32 hours agosrc/bin/grepc_c: -tfld: Split regex
Alejandro Colomar [Wed, 5 Nov 2025 14:40:05 +0000 (15:40 +0100)] 
src/bin/grepc_c: -tfld: Split regex

This will be reused for -tuf.

I copied '[\w\s,;[\]*\?:+-]*\)' from grepc_c_f_params_().

Signed-off-by: Alejandro Colomar <alx@kernel.org>
32 hours agosrc/bin/grepc_c: -tfd: Split regex for the function body
Alejandro Colomar [Wed, 5 Nov 2025 14:31:52 +0000 (15:31 +0100)] 
src/bin/grepc_c: -tfd: Split regex for the function body

This regex part will be reused by other regexes.

Signed-off-by: Alejandro Colomar <alx@kernel.org>
32 hours agosrc/bin/grepc_c: -tflp: Simplify implementation
Alejandro Colomar [Wed, 5 Nov 2025 13:58:25 +0000 (14:58 +0100)] 
src/bin/grepc_c: -tflp: Simplify implementation

This reuses the regex used by -tfp.

Signed-off-by: Alejandro Colomar <alx@kernel.org>
32 hours agosrc/bin/grepc_c: -tf: These can appear in a parameter list: '+', '-', '?', ':'
Alejandro Colomar [Wed, 5 Nov 2025 13:37:20 +0000 (14:37 +0100)] 
src/bin/grepc_c: -tf: These can appear in a parameter list: '+', '-', '?', ':'

This adds support for function declarators such as:

int
main(int argc, char *argv[argc + 1]);

char *
seprintf(char dst[], const char end[];
    char dst[dst ? end - dst : 0], const char end[0],
    const char *restrict fmt, ...);

Signed-off-by: Alejandro Colomar <alx@kernel.org>
32 hours agosrc/bin/grepc_c: -tf: Use a named capturing group
Alejandro Colomar [Wed, 5 Nov 2025 13:26:14 +0000 (14:26 +0100)] 
src/bin/grepc_c: -tf: Use a named capturing group

This allows $identifier to contain capturing groups.

Signed-off-by: Alejandro Colomar <alx@kernel.org>
32 hours agosrc/bin/grepc_c: Split regex
Alejandro Colomar [Wed, 5 Nov 2025 13:22:36 +0000 (14:22 +0100)] 
src/bin/grepc_c: Split regex

The regex for a function declarator is too complex.  Split it into
helper functions that prints the parts of the regex, so that each one
is easier to understand.

Signed-off-by: Alejandro Colomar <alx@kernel.org>
32 hours agoshare/mk/: $SHELLCHECKFLAGS: Disable SC2028
Alejandro Colomar [Wed, 5 Nov 2025 17:49:35 +0000 (18:49 +0100)] 
share/mk/: $SHELLCHECKFLAGS: Disable SC2028

It's known that echo(1) doesn't expand anything.  No need to warn.

Signed-off-by: Alejandro Colomar <alx@kernel.org>
44 hours agosrc/bin/grepc_*: Use echo(1) instead of printf(1) where possible
Alejandro Colomar [Wed, 5 Nov 2025 12:43:49 +0000 (13:43 +0100)] 
src/bin/grepc_*: Use echo(1) instead of printf(1) where possible

echo(1) is fine as long as the first argument doesn't start with a dash.

Signed-off-by: Alejandro Colomar <alx@kernel.org>
44 hours agosrc/bin/grepc_c: srcfix (align code)
Alejandro Colomar [Wed, 5 Nov 2025 12:40:02 +0000 (13:40 +0100)] 
src/bin/grepc_c: srcfix (align code)

Signed-off-by: Alejandro Colomar <alx@kernel.org>
2 days agosrc/bin/grepc: -r, -l: Don't color the output of -l
Alejandro Colomar [Tue, 4 Nov 2025 14:27:30 +0000 (15:27 +0100)] 
src/bin/grepc: -r, -l: Don't color the output of -l

Signed-off-by: Alejandro Colomar <alx@kernel.org>
2 days agosrc/bin/grepc: -r: Simplify implementation, removing a conditional
Alejandro Colomar [Tue, 4 Nov 2025 14:18:43 +0000 (15:18 +0100)] 
src/bin/grepc: -r: Simplify implementation, removing a conditional

Signed-off-by: Alejandro Colomar <alx@kernel.org>
2 days agosrc/bin/grepc: -r: Reimplement with grep(1)
Alejandro Colomar [Tue, 4 Nov 2025 14:11:50 +0000 (15:11 +0100)] 
src/bin/grepc: -r: Reimplement with grep(1)

With grep(1), we don't need to hard-code escape sequences.

Signed-off-by: Alejandro Colomar <alx@kernel.org>
3 days agosrc/bin/sortman: Fix portability issue
Alejandro Colomar [Mon, 3 Nov 2025 10:30:20 +0000 (11:30 +0100)] 
src/bin/sortman: Fix portability issue

POSIX allows blank characters before '!', but not after.

Reported-by: <onf@disroot.org>
Signed-off-by: Alejandro Colomar <alx@kernel.org>
3 days agosrc/bin/grepc: -x: Simplify implementation
Alejandro Colomar [Sun, 2 Nov 2025 20:29:04 +0000 (21:29 +0100)] 
src/bin/grepc: -x: Simplify implementation

Signed-off-by: Alejandro Colomar <alx@kernel.org>
3 days agoman/man1/grepc{,_c}.1: Split documentation into a manual page for the driver
Alejandro Colomar [Sun, 2 Nov 2025 20:04:24 +0000 (21:04 +0100)] 
man/man1/grepc{,_c}.1: Split documentation into a manual page for the driver

I've left grepc_mk undocumented for the moment, as it's still not
as stable as the C driver.

Signed-off-by: Alejandro Colomar <alx@kernel.org>
3 days agosrc/bin/grepc{,_c,_mk}: Align code after split
Alejandro Colomar [Sun, 2 Nov 2025 16:11:42 +0000 (17:11 +0100)] 
src/bin/grepc{,_c,_mk}: Align code after split

Signed-off-by: Alejandro Colomar <alx@kernel.org>
3 days agosrc/bin/grepc{,_c,_mk}: Split grepc(1) into helper programs
Alejandro Colomar [Sun, 2 Nov 2025 15:50:50 +0000 (16:50 +0100)] 
src/bin/grepc{,_c,_mk}: Split grepc(1) into helper programs

These programs print the PCRE2 patterns used by grepc(1).  This allows
easily implementing different drivers for parsing different languages.

It also allows easily using pcre2grep(1) in cases where grepc(1) might
be limited; for example, searching in non-regular files, or passing
other flags that grepc(1) doesn't pass to pcre2grep(1).

Signed-off-by: Alejandro Colomar <alx@kernel.org>
4 days agosrc/bin/: Disable pathname expansion
Alejandro Colomar [Sun, 2 Nov 2025 19:11:44 +0000 (20:11 +0100)] 
src/bin/: Disable pathname expansion

We don't use globs within these scripts, so disable them, for safety
reasons.

Signed-off-by: Alejandro Colomar <alx@kernel.org>
4 days agosrc/bin/grepc: Add missing quotes
Alejandro Colomar [Sun, 2 Nov 2025 15:44:18 +0000 (16:44 +0100)] 
src/bin/grepc: Add missing quotes

Signed-off-by: Alejandro Colomar <alx@kernel.org>
4 days agoman/man1/grepc.1: SEE ALSO: Fix references
Alejandro Colomar [Fri, 31 Oct 2025 11:48:12 +0000 (12:48 +0100)] 
man/man1/grepc.1: SEE ALSO: Fix references

Signed-off-by: Alejandro Colomar <alx@kernel.org>
4 days agoman/man1/grepc.1: ffix
Alejandro Colomar [Fri, 31 Oct 2025 10:50:28 +0000 (11:50 +0100)] 
man/man1/grepc.1: ffix

Signed-off-by: Alejandro Colomar <alx@kernel.org>
4 days agosrc/bin/grepc: Handle xargs(1) errors properly
Alejandro Colomar [Thu, 30 Oct 2025 23:58:42 +0000 (00:58 +0100)] 
src/bin/grepc: Handle xargs(1) errors properly

'xargs grep' is hard, because grep(1) exits with a status of 1 for no
match, which is not an error, but xargs(1) takes that as an error, which
is confused with other errors.

This trick with sh(1) was suggested by Paul, and nicely solves this
problem.

We also need to change $opts to be a normal variable.

We can't export bash array variables, and passing them to sh(1) -c is
not great; escapes could be messed.  It's more robust to use a normal
variable.

Link: <https://lists.gnu.org/archive/html/bug-grep/2025-10/msg00029.html>
Suggested-by: Paul Eggert <eggert@cs.ucla.edu>
Signed-off-by: Alejandro Colomar <alx@kernel.org>
4 days agosrc/bin/grepc: Use the same error code as grep(1)
Alejandro Colomar [Wed, 29 Oct 2025 22:38:20 +0000 (23:38 +0100)] 
src/bin/grepc: Use the same error code as grep(1)

Exit with 2 on error.

If nothing matches, it's a success, and it exits with 0 normally.
This is different from grep(1), but I don't know how to write
the script to exit with 1 if nothing matches.

This implementation may also ignore some xargs(1) errors.  A future
commit --with code suggested by Paul Eggert-- will fix this.

Link: <https://software.codidact.com/posts/294883>
Signed-off-by: Alejandro Colomar <alx@kernel.org>
4 days agosrc/bin/grepc: Use if/then/fi instead of &&
Alejandro Colomar [Sun, 2 Nov 2025 16:01:18 +0000 (17:01 +0100)] 
src/bin/grepc: Use if/then/fi instead of &&

It will allow using 'set -Eeuo pipefail' and trap(1) ERR.

Signed-off-by: Alejandro Colomar <alx@kernel.org>
6 days agoman/man1/grepc.1: EXAMPLES: Fix command
Alejandro Colomar [Thu, 30 Oct 2025 09:50:40 +0000 (10:50 +0100)] 
man/man1/grepc.1: EXAMPLES: Fix command

The output shows the line number, so it must have been called with -n.

Signed-off-by: Alejandro Colomar <alx@kernel.org>
6 days agosrc/bin/grepc: Refactor to avoid process substitution
Alejandro Colomar [Thu, 30 Oct 2025 09:41:55 +0000 (10:41 +0100)] 
src/bin/grepc: Refactor to avoid process substitution

Signed-off-by: Alejandro Colomar <alx@kernel.org>
6 days agosrc/bin/grepc: Add defensive check
Alejandro Colomar [Wed, 29 Oct 2025 22:43:37 +0000 (23:43 +0100)] 
src/bin/grepc: Add defensive check

This is safer than silencing shellcheck(1).

Signed-off-by: Alejandro Colomar <alx@kernel.org>
6 days agosrc/bin/grepc: Add defensive check
Alejandro Colomar [Wed, 29 Oct 2025 22:40:38 +0000 (23:40 +0100)] 
src/bin/grepc: Add defensive check

In theory, getopts(1) will make sure that no other values arrive here.
However, it's easy to add a check, and that will be safer than silencing
shellcheck(1).

Signed-off-by: Alejandro Colomar <alx@kernel.org>
8 days agosrc/bin/grepc: srcfix (Simplify case/esac)
Alejandro Colomar [Wed, 29 Oct 2025 22:34:55 +0000 (23:34 +0100)] 
src/bin/grepc: srcfix (Simplify case/esac)

We don't need ';;&' since the commit referenced below.

Fixes: 0ba68dd03564 (2024-09-19, 2025-10-29; "bin/grepc, grepc.1: -k: Remove flag")
Signed-off-by: Alejandro Colomar <alx@kernel.org>
8 days agoAdapt grepc(1) to the Linux man-pages project
Alejandro Colomar [Wed, 29 Oct 2025 21:49:26 +0000 (22:49 +0100)] 
Adapt grepc(1) to the Linux man-pages project

Signed-off-by: Alejandro Colomar <alx@kernel.org>
8 days agoman/man1/grepc.1: Use a smaller example
Alejandro Colomar [Wed, 29 Oct 2025 21:20:43 +0000 (22:20 +0100)] 
man/man1/grepc.1: Use a smaller example

Signed-off-by: Alejandro Colomar <alx@kernel.org>
8 days agosrc/bin/grepc: Use if/else instead of && and ||
Alejandro Colomar [Wed, 29 Oct 2025 21:12:09 +0000 (22:12 +0100)] 
src/bin/grepc: Use if/else instead of && and ||

Signed-off-by: Alejandro Colomar <alx@kernel.org>
8 days agosrc/bin/grepc: Quote variables
Alejandro Colomar [Wed, 29 Oct 2025 21:04:50 +0000 (22:04 +0100)] 
src/bin/grepc: Quote variables

Signed-off-by: Alejandro Colomar <alx@kernel.org>
8 days agosrc/bin/grepc: Ignore shellcheck(1) diagnostics
Alejandro Colomar [Wed, 29 Oct 2025 21:01:59 +0000 (22:01 +0100)] 
src/bin/grepc: Ignore shellcheck(1) diagnostics

Signed-off-by: Alejandro Colomar <alx@kernel.org>
8 days agosrc/bin/grepc: Use test(1) instead of [(1)
Alejandro Colomar [Wed, 29 Oct 2025 20:57:48 +0000 (21:57 +0100)] 
src/bin/grepc: Use test(1) instead of [(1)

Signed-off-by: Alejandro Colomar <alx@kernel.org>
8 days agoman/man1/grepc.1, src/bin/grepc: Add copyright notice
Alejandro Colomar [Wed, 29 Oct 2025 20:47:15 +0000 (21:47 +0100)] 
man/man1/grepc.1, src/bin/grepc: Add copyright notice

Signed-off-by: Alejandro Colomar <alx@kernel.org>
8 days agosrc/bin/grepc: Handle errors
Alejandro Colomar [Wed, 29 Oct 2025 20:39:01 +0000 (21:39 +0100)] 
src/bin/grepc: Handle errors

Signed-off-by: Alejandro Colomar <alx@kernel.org>
8 days agoman/man1/grepc.1: Adapt to the Linux man-pages project
Alejandro Colomar [Wed, 29 Oct 2025 20:37:02 +0000 (21:37 +0100)] 
man/man1/grepc.1: Adapt to the Linux man-pages project

Signed-off-by: Alejandro Colomar <alx@kernel.org>
8 days agoman/man1/grepc.1: Move manual page to man/man1/
Alejandro Colomar [Wed, 29 Oct 2025 20:31:08 +0000 (21:31 +0100)] 
man/man1/grepc.1: Move manual page to man/man1/

Signed-off-by: Alejandro Colomar <alx@kernel.org>
8 days agosrc/bin/grepc: Move script to src/bin/
Alejandro Colomar [Wed, 29 Oct 2025 20:30:18 +0000 (21:30 +0100)] 
src/bin/grepc: Move script to src/bin/

Signed-off-by: Alejandro Colomar <alx@kernel.org>
8 days agoImport grepc(1) (script and manual page) from separate project
Alejandro Colomar [Wed, 29 Oct 2025 20:48:02 +0000 (21:48 +0100)] 
Import grepc(1) (script and manual page) from separate project

It started as a script in the Linux man-pages project, under scripts/
within scripts/bash_aliases.

Eventually, I turned it into a large script, and moved it into a
separate project, to be able to work on it more freely.

The original scripts were removed from this project in commit
c3752af0549c (2022-11-22; "bash_aliases: Remove grep_syscall(),
grep_syscall_def(), and grep_glibc_prototype()").

Now, grepc(1) has stabilized, and I find it very useful for maintaining
this project (as well as others), so let's merge it back.  This will
allow distros to package it sooner than if it remained as a standalone
project.

I've imported the git history (ignoring files we don't care about) with
the help of git-filter-repo(1).

Signed-off-by: Alejandro Colomar <alx@kernel.org>
8 days agobin/grepc: -tuf: Reuse grepc_c_f_decl_() for the function declarator
Alejandro Colomar [Thu, 9 Oct 2025 19:03:23 +0000 (21:03 +0200)] 
bin/grepc: -tuf: Reuse grepc_c_f_decl_() for the function declarator

It's slightly different than the regex we were using, but I can't see a
reason for it.  It was probably due to forgetting to improve this regex.

Signed-off-by: Alejandro Colomar <alx@kernel.org>
8 days agobin/grepc: -tf: Factor out regex for function declarators
Alejandro Colomar [Thu, 9 Oct 2025 18:59:15 +0000 (20:59 +0200)] 
bin/grepc: -tf: Factor out regex for function declarators

Signed-off-by: Alejandro Colomar <alx@kernel.org>
8 days agobin/grepc: -tt: Add word boundary around the identifier
Alejandro Colomar [Thu, 9 Oct 2025 10:36:08 +0000 (12:36 +0200)] 
bin/grepc: -tt: Add word boundary around the identifier

Signed-off-by: Alejandro Colomar <alx@kernel.org>
8 days agobin/grepc: Add robustness against non-portable pathnames
Alejandro Colomar [Sat, 3 May 2025 12:37:19 +0000 (14:37 +0200)] 
bin/grepc: Add robustness against non-portable pathnames

Signed-off-by: Alejandro Colomar <alx@kernel.org>
8 days agobin/grepc: Use <() instead of $()
Alejandro Colomar [Sat, 1 Mar 2025 16:52:43 +0000 (17:52 +0100)] 
bin/grepc: Use <() instead of $()

Files are simpler to handle.  It results in less flags, and simpler
command invocations.  And it allows breaking the line more nicely,
without having to break in the middle of a quoted region.

Signed-off-by: Alejandro Colomar <alx@kernel.org>
8 days agobin/grepc: -tfp, -tfd: Add support for forward-declarations of parameters
Alejandro Colomar [Wed, 27 Nov 2024 12:50:53 +0000 (13:50 +0100)] 
bin/grepc: -tfp, -tfd: Add support for forward-declarations of parameters

This is currently a (very useful) GNU extension, and soon might become
standard in C2y.

Link: n3394 <https://www.open-std.org/jtc1/sc22/wg14/www/docs/n3394.pdf>
Signed-off-by: Alejandro Colomar <alx@kernel.org>
8 days agobin/grepc, grepc.1: -k: Remove flag
Alejandro Colomar [Thu, 19 Sep 2024 12:12:57 +0000 (14:12 +0200)] 
bin/grepc, grepc.1: -k: Remove flag

Just behave like grep(1) and pcre2grep(1).  If the user wants to see it
more nicely, they can do it themselves.

Signed-off-by: Alejandro Colomar <alx@kernel.org>
8 days agobin/grepc: bugfix: Pass options to grep(1) correctly
Alejandro Colomar [Tue, 7 Nov 2023 17:06:55 +0000 (18:06 +0100)] 
bin/grepc: bugfix: Pass options to grep(1) correctly

Fixes: 92dca8e97bfa ("bin/grepc: srcfix (Variables for options hold their '-')")
Signed-off-by: Alejandro Colomar <alx@kernel.org>
8 days agobin/, man/: -m: Add flag, and pass it to pcre2grep(1)
Alejandro Colomar [Fri, 10 May 2024 10:42:01 +0000 (12:42 +0200)] 
bin/, man/: -m: Add flag, and pass it to pcre2grep(1)

Signed-off-by: Alejandro Colomar <alx@kernel.org>
8 days agobin/grepc: -x: c, mk: Add support for Makefile code
Alejandro Colomar [Mon, 26 Feb 2024 23:43:09 +0000 (00:43 +0100)] 
bin/grepc: -x: c, mk: Add support for Makefile code

Signed-off-by: Alejandro Colomar <alx@kernel.org>
8 days agobin/grepc: Ignore a shellcheck(1) warning
Alejandro Colomar [Sun, 5 Nov 2023 16:56:08 +0000 (17:56 +0100)] 
bin/grepc: Ignore a shellcheck(1) warning

Signed-off-by: Alejandro Colomar <alx@kernel.org>
8 days agobin/grepc: srcfix (Compact cases a little bit)
Alejandro Colomar [Sun, 5 Nov 2023 16:47:27 +0000 (17:47 +0100)] 
bin/grepc: srcfix (Compact cases a little bit)

Signed-off-by: Alejandro Colomar <alx@kernel.org>
8 days agobin/grepc: srcfix (Remove unnecessary comment)
Alejandro Colomar [Sun, 5 Nov 2023 16:43:22 +0000 (17:43 +0100)] 
bin/grepc: srcfix (Remove unnecessary comment)

Signed-off-by: Alejandro Colomar <alx@kernel.org>
8 days agobin/grepc: srcfix (Use printf '%s\n' instead of echo)
Alejandro Colomar [Sun, 5 Nov 2023 16:33:26 +0000 (17:33 +0100)] 
bin/grepc: srcfix (Use printf '%s\n' instead of echo)

Reported-by: terdon <https://linux.codidact.com/users/57088>
Signed-off-by: Alejandro Colomar <alx@kernel.org>
8 days agobin/grepc: srcfix (Use bash(1) array variable)
Alejandro Colomar [Sun, 5 Nov 2023 15:59:21 +0000 (16:59 +0100)] 
bin/grepc: srcfix (Use bash(1) array variable)

Signed-off-by: Alejandro Colomar <alx@kernel.org>
8 days agobin/grepc: srcfix (Remove grepc_search() and main())
Alejandro Colomar [Sun, 5 Nov 2023 15:29:23 +0000 (16:29 +0100)] 
bin/grepc: srcfix (Remove grepc_search() and main())

Signed-off-by: Alejandro Colomar <alx@kernel.org>
8 days agobin/grepc: srcfix (Remove grepc_patterns())
Alejandro Colomar [Sun, 5 Nov 2023 15:26:02 +0000 (16:26 +0100)] 
bin/grepc: srcfix (Remove grepc_patterns())

Signed-off-by: Alejandro Colomar <alx@kernel.org>
8 days agobin/grepc: srcfix (Remove grepc_parse_cmd())
Alejandro Colomar [Sun, 5 Nov 2023 15:23:10 +0000 (16:23 +0100)] 
bin/grepc: srcfix (Remove grepc_parse_cmd())

Signed-off-by: Alejandro Colomar <alx@kernel.org>
8 days agobin/grepc: srcfix (Simplify 'case's thanks to bash(1)'s ';;&')
Alejandro Colomar [Sun, 5 Nov 2023 14:14:39 +0000 (15:14 +0100)] 
bin/grepc: srcfix (Simplify 'case's thanks to bash(1)'s ';;&')

Signed-off-by: Alejandro Colomar <alx@kernel.org>
8 days agobin/grepc: srcfix (Escape '?' in bash(1) case following getopts(1))
Alejandro Colomar [Sun, 5 Nov 2023 16:41:06 +0000 (17:41 +0100)] 
bin/grepc: srcfix (Escape '?' in bash(1) case following getopts(1))

Signed-off-by: Alejandro Colomar <alx@kernel.org>
8 days agobin/grepc: srcfix (Compact single-line cases)
Alejandro Colomar [Sun, 5 Nov 2023 12:39:23 +0000 (13:39 +0100)] 
bin/grepc: srcfix (Compact single-line cases)

Signed-off-by: Alejandro Colomar <alx@kernel.org>
8 days agobin/grepc, grepc.1: -c: Add option to count matches
Alejandro Colomar [Sun, 5 Nov 2023 12:31:33 +0000 (13:31 +0100)] 
bin/grepc, grepc.1: -c: Add option to count matches

As in pcre2grep(1) and grep(1).

Signed-off-by: Alejandro Colomar <alx@kernel.org>
8 days agobin/grepc, grepc.1: Rename option -c to -r
Alejandro Colomar [Sun, 5 Nov 2023 12:23:29 +0000 (13:23 +0100)] 
bin/grepc, grepc.1: Rename option -c to -r

This leaves -c unused, so we can add -c with the same meaning of
grep(1): count.

Signed-off-by: Alejandro Colomar <alx@kernel.org>
8 days agogrepc.1: -c: Remove outdated sentence
Alejandro Colomar [Sun, 5 Nov 2023 12:14:51 +0000 (13:14 +0100)] 
grepc.1: -c: Remove outdated sentence

Since 83cfbb6042d1 ("bin/grepc: Optimize"), we color also in ther types
of code.  Update the manual page.

Fixes: 83cfbb6042d1 ("bin/grepc: Optimize")
Signed-off-by: Alejandro Colomar <alx@kernel.org>
8 days agobin/grepc, grepc.1: Use 'l' instead of 's' for Linux system calls
Alejandro Colomar [Sun, 5 Nov 2023 12:06:15 +0000 (13:06 +0100)] 
bin/grepc, grepc.1: Use 'l' instead of 's' for Linux system calls

To avoid confusion to users of other kernels.

Signed-off-by: Alejandro Colomar <alx@kernel.org>
8 days agobin/grepc: srcfix (Reorder some function definitions)
Alejandro Colomar [Sun, 5 Nov 2023 12:03:15 +0000 (13:03 +0100)] 
bin/grepc: srcfix (Reorder some function definitions)

Signed-off-by: Alejandro Colomar <alx@kernel.org>
8 days agobin/grepc, grepc.1: -n: Add option to control printing of line numbers
Alejandro Colomar [Sun, 5 Nov 2023 02:12:53 +0000 (03:12 +0100)] 
bin/grepc, grepc.1: -n: Add option to control printing of line numbers

Signed-off-by: Alejandro Colomar <alx@kernel.org>
8 days agobin/grepc: srcfix (Actually create file with mktemp(1))
Alejandro Colomar [Sun, 5 Nov 2023 01:49:37 +0000 (02:49 +0100)] 
bin/grepc: srcfix (Actually create file with mktemp(1))

This ensures we own the file, removing any races.

Signed-off-by: Alejandro Colomar <alx@kernel.org>
8 days agobin/grepc: srcfix (Add some tabs, and remove a function)
Alejandro Colomar [Sun, 5 Nov 2023 01:47:09 +0000 (02:47 +0100)] 
bin/grepc: srcfix (Add some tabs, and remove a function)

Signed-off-by: Alejandro Colomar <alx@kernel.org>
8 days agobin/grepc, grepc.1: -A, -B, -C: Add flags for printing context.
Alejandro Colomar [Sat, 4 Nov 2023 21:00:57 +0000 (22:00 +0100)] 
bin/grepc, grepc.1: -A, -B, -C: Add flags for printing context.

These flags are passed to pcre2grep(1).

Signed-off-by: Alejandro Colomar <alx@kernel.org>
8 days agobin/grepc: srcfix (Variables for options hold their '-')
Alejandro Colomar [Sat, 4 Nov 2023 20:53:13 +0000 (21:53 +0100)] 
bin/grepc: srcfix (Variables for options hold their '-')

This is to allow adding options that have arguments that are passed to
pcre2grep(1).

Signed-off-by: Alejandro Colomar <alx@kernel.org>
8 days agobin/grepc, grepc.1: -h: Add option to suppress prefixing file names
Alejandro Colomar [Sat, 4 Nov 2023 20:47:44 +0000 (21:47 +0100)] 
bin/grepc, grepc.1: -h: Add option to suppress prefixing file names

Equivalent to grep(1)'s -h, except that we always default to -H behavior.

Signed-off-by: Alejandro Colomar <alx@kernel.org>
8 days agobin/grepc: srcfix (Add missing variable definition)
Alejandro Colomar [Sat, 4 Nov 2023 20:04:32 +0000 (21:04 +0100)] 
bin/grepc: srcfix (Add missing variable definition)

Signed-off-by: Alejandro Colomar <alx@kernel.org>