Commit Graph

84 Commits

Author SHA1 Message Date
Carlo Marcelo Arenas Belón 055b7ce4a9
pcre2grep: remove JFRIEDL_DEBUG obsoleted code (#49)
Still uses the already obsoleted PCRE1 API

Signed-off-by: Carlo Marcelo Arenas Belón <carenas@gmail.com>
2021-11-27 16:36:17 +00:00
Carlo Marcelo Arenas Belón 587b94277b
doc: formatting/typo fixes to documentation (#47)
* doc: fix incorrect use of JOIN and typo

Signed-off-by: Carlo Marcelo Arenas Belón <carenas@gmail.com>

* doc: reformat of pcre2_substitute to align options

includes some rewording to fit better in an 80 char wide troff output.

Signed-off-by: Carlo Marcelo Arenas Belón <carenas@gmail.com>

* doc: update names to pcre2
2021-11-27 16:27:49 +00:00
Carlo Marcelo Arenas Belón dae475092d
pcre2grep: avoid portability minefield with buffered fseek(stdin) (#36)
To allow pcre2grep to do an early exit in a resumable way, -m uses
fseek on stdin, which is sadly not supported in several platforms.

Most of the conflicting issues come from the fact that managing the
position while buffering is not trivial, and is therefore an optional
feature[1] of POSIX.1-2017

Workaround this by removing the buffer to stdin, if the -m option is
being used.  There is likely not a significant performance benefit
even for the platforms that support it, but it could be conditionally
added in that case, later.

Fixes: #10

[1] https://pubs.opengroup.org/onlinepubs/9699919799/functions/fseek.html
2021-11-09 17:15:38 +00:00
Carlo Marcelo Arenas Belón 7db8784296
pcre2grep: correctly handle multiple passes (#35)
* tests: use a explicit filehandle to share in testing -m

The way stdin is shared to all participants of a subshell varies
per shell, and at least the standard /bin/sh in Solaris seem to
create a new copy for each command, defeating the purpose of the
test.

Use instead exec to create a filehandle that could then be used
explicitly in the test to confirm that the stream is set.

* pcre2grep: correctly handle multiple passes

When the -m option is used, pcre2grep is meant to exit after enough
matches are found but while leaving the stream pinned to the next position
after the last match.

Unfortunately, it wasn't tracking correctly the beginning of the stream
on subsequent passes, and therefore it will fail to use the right seek
value.

Grab the position of the stream at the beginning and while at it, make
sure that the stream passed hasn't been consumed already.
2021-11-09 16:57:48 +00:00
Carlo Marcelo Arenas Belón 128c50360c
fix building on ancient compilers (#32)
* jit: allow building with ancient MSVC versions

Visual Studio older than 2013, fails to build with JIT enabled,
because it is unable to parse non C89 compatible syntax, with
mixed declarations and code.

While most recent compilers wouldn't even report this as a warning
since it is valid C99, it could be also made visible by adding to
gcc/clang the -Wdeclaration-after-statement flag at build time.

Move the code below the affected definitions.

* pcre2grep: avoid mixing declarations with code

Since d5a61ee8 (Patch to detect (and ignore) symlink loops in
pcre2grep., 2021-08-28), code will fail to build in a strict C89
compiler.

Reformat slightly to make it C89 compatible again.
2021-10-29 16:07:53 +01:00
Carlo Marcelo Arenas Belón d46f1863be
improve on 'auto' mode for DISABLE_PERCENT_ZT (#28)
Visual Studio 2013 includes support for %zu and %td, so let newer
versions of it avoid the fallback, and while at it, make sure that
the first check is for DISABLE_PERCENT_ZT so it will be always
honoured if chosen.

prtdiff_t is signed, so use a signed type instead, and make sure
that an appropiate width is chosen if pointers are 64bit wide.

Remove the need for the size_t cast and instead change the size
of the equivalent format identifier to avoid truncations.
2021-10-29 14:29:47 +01:00
Philip Hazel 31a46200fa Add --allow-lookaround-bsk to pcre2grep 2021-08-31 16:24:25 +01:00
Philip Hazel d5a61ee891 Patch to detect (and ignore) symlink loops in pcre2grep. 2021-08-28 17:37:33 +01:00
Philip.Hazel 000bbf2ea7 File tidies for 10.36-RC1 2020-11-06 17:27:35 +00:00
Philip.Hazel fff544a1e9 Fix potential memory leak in error situation in recent new code. 2020-10-06 08:04:40 +00:00
Philip.Hazel 81da2b97e3 pcre2grep update: -m and $x{..}, $o{..} escapes. Also some doc updates. 2020-10-04 16:34:31 +00:00
Philip.Hazel 9e960f5465 Ensure a newline after the final line in a file is output by pcre2grep. 2020-01-25 15:50:44 +00:00
Philip.Hazel 0970ae4195 Add the pcre2_maketables_free() function. 2019-09-03 14:16:07 +00:00
Philip.Hazel 0d1ab8515f Fix pcre2grep -o bug when ovector overflows; add option to adjust the limit;
raise the default limit; give error if -o requests an uncaptured parens.
2019-06-15 15:51:07 +00:00
Philip.Hazel 4f31de2866 Add support for invalid UTF-8 matching to pcre2grep. 2019-05-28 14:14:22 +00:00
Philip.Hazel 8187224514 Add VMS support for pcre2grep callout of an external program. 2018-11-24 16:31:10 +00:00
Philip.Hazel 0ad7ff1549 Add --disable-pcre2grep-callout-fork configuration setting. 2018-11-17 16:45:57 +00:00
Philip.Hazel 66cd7df514 Add pcre2_jit_free_unused_memory() to pcre2grep, for tidiness. 2018-10-28 17:27:48 +00:00
Philip.Hazel ab30606b01 Fix small bug in pcre2grep (no effect other than a sanitizer warning). 2018-09-10 17:34:19 +00:00
Philip.Hazel 1a8cc3dab6 Make bcopy() emulation of memmove() work properly. 2018-08-10 16:27:44 +00:00
Philip.Hazel b4aaf222d7 Undefine WIN32 for pcre2grep under Cygwin. 2018-06-19 16:27:42 +00:00
Philip.Hazel e75410a5d8 More typos and changes to "Kibibytes" for "Kilobytes". 2018-06-18 14:03:33 +00:00
Philip.Hazel f7187b38c7 Apply some of Daniel Richard G's Windows patches. 2018-04-19 16:52:57 +00:00
Philip.Hazel ee7e093af0 A small fix to pcre2grep to avoid compiler warnings for -Wformat-overflow=2. 2018-02-25 12:12:48 +00:00
Philip.Hazel 04919e9d03 Add support to pcre2grep for binary zeros in -f files. 2018-02-24 17:09:19 +00:00
Philip.Hazel 911d43cd1e Fix \K issues in pcre2grep. 2017-12-26 15:10:04 +00:00
Philip.Hazel 1a81b738fe Change pcre2grep line number and count variables to unsigned long int. 2017-12-08 10:25:49 +00:00
Philip.Hazel 2543ba81f7 Fix crash for --line-buffered with a .gz or .bz2 file in pcre2grep. 2017-11-13 17:12:55 +00:00
Philip.Hazel 76814d92c7 Fix multiple multiline matching issues in pcre2grep. 2017-11-13 16:52:39 +00:00
Philip.Hazel 1cc5351f6c Remove superflous variable. 2017-11-09 17:50:59 +00:00
Philip.Hazel 13fe9767cf Fix memory leak issue introduced in last bug fix in pcre2grep. 2017-10-22 16:17:44 +00:00
Philip.Hazel 3a55923da8 Fix pcre2grep recursive file name length issue. 2017-10-20 16:51:59 +00:00
Philip.Hazel aa0c168332 Set PCRE2GREP_RC to the pcre2grep exit status when running under VMS. 2017-10-11 16:49:10 +00:00
Philip.Hazel 33a4edf837 Modify #ifdefs for Cygwin. 2017-07-27 16:17:19 +00:00
Philip.Hazel c747990046 Rename the FWRITE macro in pcre2grep to avoid clash in cygwin. 2017-07-21 08:22:03 +00:00
Philip.Hazel 76a57bd839 Convert pcre2grep to use new pcre2_compile() options, thereby fixing two minor
(?) bugs.
2017-06-17 11:32:06 +00:00
Philip.Hazel 69eab9cfe7 Minor code tidy. 2017-06-16 18:04:41 +00:00
Philip.Hazel f850015168 Add suitable "fall through" comments for latest gcc warnings. 2017-06-03 17:50:03 +00:00
Philip.Hazel 3d80fa4fc2 Implement PCRE2_NEWLINE_NUL. 2017-05-26 17:14:36 +00:00
Philip.Hazel 14989bd454 Add explicit heap limiting options to pcre2_match(), with associated features
for listing, configuring, etc.
2017-04-11 11:47:25 +00:00
Philip.Hazel 7afe4e4110 Documentation tidies and code tidies for Windows. 2017-04-08 15:21:39 +00:00
Philip.Hazel 88abc14e42 Jason Hood's pcre2grep patches (modified a bit) to add --output to pcre2grep,
and also an inbuilt callout echo.
2017-04-06 18:02:40 +00:00
Philip.Hazel 2b36600b2b Fix typo and remove extraneous blank lines. 2017-04-05 15:40:06 +00:00
Philip.Hazel ca75518017 Fix pcre2grep Windows problem for new output-colouring code when not under
mingw (Bugzilla 2067).
2017-03-21 16:09:57 +00:00
Philip.Hazel 88db1be123 Change "limit recursion" to "limit depth" in code and build systems because the
old name, which is retained as a synonym for the moment, is no longer 
appropriate.
2017-03-12 13:47:01 +00:00
Philip.Hazel 388ffac596 Fix bug in most recent fix for pcre2grep. 2017-02-12 13:30:38 +00:00
Philip.Hazel 0299bba9d9 Fix previously broken fix for pcre2grep with -Mo matching strings that cross
line boundaries.
2017-02-10 17:39:29 +00:00
Philip.Hazel ca1ecd41a1 File tidies for 10.23-RC1 2017-01-16 17:40:47 +00:00
Philip.Hazel 31c62034fe Minor tidies to pcre2grep. 2017-01-16 15:06:57 +00:00
Philip.Hazel 224e707ab0 Ignore all JIT compile errors in pcre2grep. 2017-01-11 17:10:28 +00:00