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Commit d233fd14 authored by Oleksandr Byelkin's avatar Oleksandr Byelkin
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Merge branch 'merge-pcre' into 10.1

parents 4fc8961d c1291d7a
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pcre/AUTHORS
View file @ d233fd14
...@@ -8,7 +8,7 @@ Email domain: cam.ac.uk ...@@ -8,7 +8,7 @@ Email domain: cam.ac.uk
University of Cambridge Computing Service, University of Cambridge Computing Service,
Cambridge, England. Cambridge, England.
Copyright (c) 1997-2019 University of Cambridge Copyright (c) 1997-2020 University of Cambridge
All rights reserved All rights reserved
...@@ -19,7 +19,7 @@ Written by: Zoltan Herczeg ...@@ -19,7 +19,7 @@ Written by: Zoltan Herczeg
Email local part: hzmester Email local part: hzmester
Emain domain: freemail.hu Emain domain: freemail.hu
Copyright(c) 2010-2019 Zoltan Herczeg Copyright(c) 2010-2020 Zoltan Herczeg
All rights reserved. All rights reserved.
...@@ -30,7 +30,7 @@ Written by: Zoltan Herczeg ...@@ -30,7 +30,7 @@ Written by: Zoltan Herczeg
Email local part: hzmester Email local part: hzmester
Emain domain: freemail.hu Emain domain: freemail.hu
Copyright(c) 2009-2019 Zoltan Herczeg Copyright(c) 2009-2020 Zoltan Herczeg
All rights reserved. All rights reserved.
......
pcre/ChangeLog
View file @ d233fd14
...@@ -5,6 +5,35 @@ Note that the PCRE 8.xx series (PCRE1) is now in a bugfix-only state. All ...@@ -5,6 +5,35 @@ Note that the PCRE 8.xx series (PCRE1) is now in a bugfix-only state. All
development is happening in the PCRE2 10.xx series. development is happening in the PCRE2 10.xx series.
Version 8.44 12 February-2020
-----------------------------
1. Setting --enable-jit=auto for an out-of-tree build failed because the
source directory wasn't in the search path for AC_TRY_COMPILE always. Patch
from Ross Burton.
2. Applied a patch from Michael Shigorin to fix 8.43 build on e2k arch
with lcc compiler (EDG frontend based); the problem it fixes is:
lcc: "pcrecpp.cc", line 74: error: declaration aliased to undefined entity
"_ZN7pcrecpp2RE6no_argE" [-Werror]
3. Change 2 for 8.43 omitted (*LF) from the list of start-of-pattern items. Now
added.
4. Fix ARMv5 JIT improper handling of labels right after a constant pool.
5. Small patch to pcreposix.c to set the erroroffset field to -1 immediately
after a successful compile, instead of at the start of matching to avoid a
sanitizer complaint (regexec is supposed to be thread safe).
6. Check the size of the number after (?C as it is read, in order to avoid
integer overflow.
7. Tidy up left shifts to avoid sanitize warnings; also fix one NULL deference
in pcretest.
Version 8.43 23-February-2019 Version 8.43 23-February-2019
----------------------------- -----------------------------
......
pcre/LICENCE
View file @ d233fd14
...@@ -25,7 +25,7 @@ Email domain: cam.ac.uk ...@@ -25,7 +25,7 @@ Email domain: cam.ac.uk
University of Cambridge Computing Service, University of Cambridge Computing Service,
Cambridge, England. Cambridge, England.
Copyright (c) 1997-2019 University of Cambridge Copyright (c) 1997-2020 University of Cambridge
All rights reserved. All rights reserved.
...@@ -36,7 +36,7 @@ Written by: Zoltan Herczeg ...@@ -36,7 +36,7 @@ Written by: Zoltan Herczeg
Email local part: hzmester Email local part: hzmester
Email domain: freemail.hu Email domain: freemail.hu
Copyright(c) 2010-2019 Zoltan Herczeg Copyright(c) 2010-2020 Zoltan Herczeg
All rights reserved. All rights reserved.
...@@ -47,7 +47,7 @@ Written by: Zoltan Herczeg ...@@ -47,7 +47,7 @@ Written by: Zoltan Herczeg
Email local part: hzmester Email local part: hzmester
Email domain: freemail.hu Email domain: freemail.hu
Copyright(c) 2009-2019 Zoltan Herczeg Copyright(c) 2009-2020 Zoltan Herczeg
All rights reserved. All rights reserved.
......
pcre/NEWS
View file @ d233fd14
...@@ -5,6 +5,12 @@ Note that this library (now called PCRE1) is now being maintained for bug fixes ...@@ -5,6 +5,12 @@ Note that this library (now called PCRE1) is now being maintained for bug fixes
only. New projects are advised to use the new PCRE2 libraries. only. New projects are advised to use the new PCRE2 libraries.
Release 8.44 12-February-2020
-----------------------------
This is a bug-fix release.
Release 8.43 23-February-2019 Release 8.43 23-February-2019
----------------------------- -----------------------------
......
pcre/README
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...@@ -13,9 +13,10 @@ libraries. ...@@ -13,9 +13,10 @@ libraries.
The latest release of PCRE1 is always available in three alternative formats The latest release of PCRE1 is always available in three alternative formats
from: from:
ftp://ftp.csx.cam.ac.uk/pub/software/programming/pcre/pcre-xxx.tar.gz https://ftp.pcre.org/pub/pcre/pcre-x.xx.tar.gz
ftp://ftp.csx.cam.ac.uk/pub/software/programming/pcre/pcre-xxx.tar.bz2 https://ftp.pcre.org/pub/pcre/pcre-x.xx.tar.bz2
ftp://ftp.csx.cam.ac.uk/pub/software/programming/pcre/pcre-xxx.zip https://ftp.pcre.org/pub/pcre/pcre-x.xx.tar.zip
There is a mailing list for discussion about the development of PCRE at There is a mailing list for discussion about the development of PCRE at
pcre-dev@exim.org. You can access the archives and subscribe or manage your pcre-dev@exim.org. You can access the archives and subscribe or manage your
...@@ -999,4 +1000,4 @@ pcre_xxx, one with the name pcre16_xx, and a third with the name pcre32_xxx. ...@@ -999,4 +1000,4 @@ pcre_xxx, one with the name pcre16_xx, and a third with the name pcre32_xxx.
Philip Hazel Philip Hazel
Email local part: ph10 Email local part: ph10
Email domain: cam.ac.uk Email domain: cam.ac.uk
Last updated: 10 February 2015 Last updated: 12 February 2020
pcre/configure.ac
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...@@ -9,19 +9,19 @@ dnl The PCRE_PRERELEASE feature is for identifying release candidates. It might ...@@ -9,19 +9,19 @@ dnl The PCRE_PRERELEASE feature is for identifying release candidates. It might
dnl be defined as -RC2, for example. For real releases, it should be empty. dnl be defined as -RC2, for example. For real releases, it should be empty.
m4_define(pcre_major, [8]) m4_define(pcre_major, [8])
m4_define(pcre_minor, [43]) m4_define(pcre_minor, [44])
m4_define(pcre_prerelease, []) m4_define(pcre_prerelease, [])
m4_define(pcre_date, [2019-02-23]) m4_define(pcre_date, [2020-02-12])
# NOTE: The CMakeLists.txt file searches for the above variables in the first # NOTE: The CMakeLists.txt file searches for the above variables in the first
# 50 lines of this file. Please update that if the variables above are moved. # 50 lines of this file. Please update that if the variables above are moved.
# Libtool shared library interface versions (current:revision:age) # Libtool shared library interface versions (current:revision:age)
m4_define(libpcre_version, [3:11:2]) m4_define(libpcre_version, [3:12:2])
m4_define(libpcre16_version, [2:11:2]) m4_define(libpcre16_version, [2:12:2])
m4_define(libpcre32_version, [0:11:0]) m4_define(libpcre32_version, [0:12:0])
m4_define(libpcreposix_version, [0:6:0]) m4_define(libpcreposix_version, [0:7:0])
m4_define(libpcrecpp_version, [0:1:0]) m4_define(libpcrecpp_version, [0:2:0])
AC_PREREQ(2.57) AC_PREREQ(2.57)
AC_INIT(PCRE, pcre_major.pcre_minor[]pcre_prerelease, , pcre) AC_INIT(PCRE, pcre_major.pcre_minor[]pcre_prerelease, , pcre)
...@@ -159,12 +159,15 @@ AC_ARG_ENABLE(jit, ...@@ -159,12 +159,15 @@ AC_ARG_ENABLE(jit,
if test "$enable_jit" = "auto"; then if test "$enable_jit" = "auto"; then
AC_LANG(C) AC_LANG(C)
SAVE_CPPFLAGS=$CPPFLAGS
CPPFLAGS=-I$srcdir
AC_COMPILE_IFELSE([AC_LANG_SOURCE([[ AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
#define SLJIT_CONFIG_AUTO 1 #define SLJIT_CONFIG_AUTO 1
#include "sljit/sljitConfigInternal.h" #include "sljit/sljitConfigInternal.h"
#if (defined SLJIT_CONFIG_UNSUPPORTED && SLJIT_CONFIG_UNSUPPORTED) #if (defined SLJIT_CONFIG_UNSUPPORTED && SLJIT_CONFIG_UNSUPPORTED)
#error unsupported #error unsupported
#endif]])], enable_jit=yes, enable_jit=no) #endif]])], enable_jit=yes, enable_jit=no)
CPPFLAGS=$SAVE_CPPFLAGS
fi fi
# Handle --disable-pcregrep-jit (enabled by default) # Handle --disable-pcregrep-jit (enabled by default)
......
pcre/doc/html/README.txt
View file @ d233fd14
...@@ -13,9 +13,10 @@ libraries. ...@@ -13,9 +13,10 @@ libraries.
The latest release of PCRE1 is always available in three alternative formats The latest release of PCRE1 is always available in three alternative formats
from: from:
ftp://ftp.csx.cam.ac.uk/pub/software/programming/pcre/pcre-xxx.tar.gz https://ftp.pcre.org/pub/pcre/pcre-x.xx.tar.gz
ftp://ftp.csx.cam.ac.uk/pub/software/programming/pcre/pcre-xxx.tar.bz2 https://ftp.pcre.org/pub/pcre/pcre-x.xx.tar.bz2
ftp://ftp.csx.cam.ac.uk/pub/software/programming/pcre/pcre-xxx.zip https://ftp.pcre.org/pub/pcre/pcre-x.xx.tar.zip
There is a mailing list for discussion about the development of PCRE at There is a mailing list for discussion about the development of PCRE at
pcre-dev@exim.org. You can access the archives and subscribe or manage your pcre-dev@exim.org. You can access the archives and subscribe or manage your
...@@ -999,4 +1000,4 @@ pcre_xxx, one with the name pcre16_xx, and a third with the name pcre32_xxx. ...@@ -999,4 +1000,4 @@ pcre_xxx, one with the name pcre16_xx, and a third with the name pcre32_xxx.
Philip Hazel Philip Hazel
Email local part: ph10 Email local part: ph10
Email domain: cam.ac.uk Email domain: cam.ac.uk
Last updated: 10 February 2015 Last updated: 12 February 2020
pcre/doc/html/pcre.html
View file @ d233fd14
...@@ -143,7 +143,7 @@ performance. ...@@ -143,7 +143,7 @@ performance.
One way of guarding against this possibility is to use the One way of guarding against this possibility is to use the
<b>pcre_fullinfo()</b> function to check the compiled pattern's options for UTF. <b>pcre_fullinfo()</b> function to check the compiled pattern's options for UTF.
Alternatively, from release 8.33, you can set the PCRE_NEVER_UTF option at Alternatively, from release 8.33, you can set the PCRE_NEVER_UTF option at
compile time. This causes an compile time error if a pattern contains a compile time. This causes a compile time error if a pattern contains a
UTF-setting sequence. UTF-setting sequence.
</P> </P>
<P> <P>
......
pcre/doc/html/pcreapi.html
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...@@ -1246,7 +1246,7 @@ the following negative numbers: ...@@ -1246,7 +1246,7 @@ the following negative numbers:
PCRE_ERROR_BADOPTION the value of <i>what</i> was invalid PCRE_ERROR_BADOPTION the value of <i>what</i> was invalid
PCRE_ERROR_UNSET the requested field is not set PCRE_ERROR_UNSET the requested field is not set
</pre> </pre>
The "magic number" is placed at the start of each compiled pattern as an simple The "magic number" is placed at the start of each compiled pattern as a simple
check against passing an arbitrary memory pointer. The endianness error can check against passing an arbitrary memory pointer. The endianness error can
occur if a compiled pattern is saved and reloaded on a different host. Here is occur if a compiled pattern is saved and reloaded on a different host. Here is
a typical call of <b>pcre_fullinfo()</b>, to obtain the length of the compiled a typical call of <b>pcre_fullinfo()</b>, to obtain the length of the compiled
...@@ -1318,7 +1318,7 @@ returned. For anchored patterns, -2 is returned. ...@@ -1318,7 +1318,7 @@ returned. For anchored patterns, -2 is returned.
</pre> </pre>
Return the value of the first data unit (non-UTF character) of any matched Return the value of the first data unit (non-UTF character) of any matched
string in the situation where PCRE_INFO_FIRSTCHARACTERFLAGS returns 1; string in the situation where PCRE_INFO_FIRSTCHARACTERFLAGS returns 1;
otherwise return 0. The fourth argument should point to an <b>uint_t</b> otherwise return 0. The fourth argument should point to a <b>uint_t</b>
variable. variable.
</P> </P>
<P> <P>
...@@ -1577,7 +1577,7 @@ returned value 1 (with "z" returned from PCRE_INFO_REQUIREDCHAR), but for ...@@ -1577,7 +1577,7 @@ returned value 1 (with "z" returned from PCRE_INFO_REQUIREDCHAR), but for
</pre> </pre>
Return the value of the rightmost literal data unit that must exist in any Return the value of the rightmost literal data unit that must exist in any
matched string, other than at its start, if such a value has been recorded. The matched string, other than at its start, if such a value has been recorded. The
fourth argument should point to an <b>uint32_t</b> variable. If there is no such fourth argument should point to a <b>uint32_t</b> variable. If there is no such
value, 0 is returned. value, 0 is returned.
</P> </P>
<br><a name="SEC16" href="#TOC1">REFERENCE COUNTS</a><br> <br><a name="SEC16" href="#TOC1">REFERENCE COUNTS</a><br>
......
pcre/doc/html/pcretest.html
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...@@ -99,23 +99,21 @@ the 16-bit library, or <b>pcre32_xx</b> when using the 32-bit library". ...@@ -99,23 +99,21 @@ the 16-bit library, or <b>pcre32_xx</b> when using the 32-bit library".
<br><a name="SEC4" href="#TOC1">COMMAND LINE OPTIONS</a><br> <br><a name="SEC4" href="#TOC1">COMMAND LINE OPTIONS</a><br>
<P> <P>
<b>-8</b> <b>-8</b>
If both the 8-bit library has been built, this option causes the 8-bit library If the 8-bit library has been built, this option causes it to be used (this is
to be used (which is the default); if the 8-bit library has not been built, the default). If the 8-bit library has not been built, this option causes an
this option causes an error. error.
</P> </P>
<P> <P>
<b>-16</b> <b>-16</b>
If both the 8-bit or the 32-bit, and the 16-bit libraries have been built, this If the 16-bit library has been built, this option causes it to be used. If only
option causes the 16-bit library to be used. If only the 16-bit library has been the 16-bit library has been built, this is the default. If the 16-bit library
built, this is the default (so has no effect). If only the 8-bit or the 32-bit has not been built, this option causes an error.
library has been built, this option causes an error.
</P> </P>
<P> <P>
<b>-32</b> <b>-32</b>
If both the 8-bit or the 16-bit, and the 32-bit libraries have been built, this If the 32-bit library has been built, this option causes it to be used. If only
option causes the 32-bit library to be used. If only the 32-bit library has been the 32-bit library has been built, this is the default. If the 32-bit library
built, this is the default (so has no effect). If only the 8-bit or the 16-bit has not been built, this option causes an error.
library has been built, this option causes an error.
</P> </P>
<P> <P>
<b>-b</b> <b>-b</b>
...@@ -1154,9 +1152,9 @@ Cambridge CB2 3QH, England. ...@@ -1154,9 +1152,9 @@ Cambridge CB2 3QH, England.
</P> </P>
<br><a name="SEC17" href="#TOC1">REVISION</a><br> <br><a name="SEC17" href="#TOC1">REVISION</a><br>
<P> <P>
Last updated: 23 February 2017 Last updated: 10 February 2020
<br> <br>
Copyright &copy; 1997-2017 University of Cambridge. Copyright &copy; 1997-2020 University of Cambridge.
<br> <br>
<p> <p>
Return to the <a href="index.html">PCRE index page</a>. Return to the <a href="index.html">PCRE index page</a>.
......
pcre/doc/pcre-config.txt
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...@@ -16,8 +16,8 @@ DESCRIPTION ...@@ -16,8 +16,8 @@ DESCRIPTION
pcre-config returns the configuration of the installed PCRE libraries pcre-config returns the configuration of the installed PCRE libraries
and the options required to compile a program to use them. Some of the and the options required to compile a program to use them. Some of the
options apply only to the 8-bit, or 16-bit, or 32-bit libraries, options apply only to the 8-bit, or 16-bit, or 32-bit libraries, re-
respectively, and are not available if only one of those libraries has spectively, and are not available if only one of those libraries has
been built. If an unavailable option is encountered, the "usage" infor- been built. If an unavailable option is encountered, the "usage" infor-
mation is output. mation is output.
...@@ -36,37 +36,37 @@ OPTIONS ...@@ -36,37 +36,37 @@ OPTIONS
--version Writes the version number of the installed PCRE libraries to --version Writes the version number of the installed PCRE libraries to
the standard output. the standard output.
--libs Writes to the standard output the command line options --libs Writes to the standard output the command line options re-
required to link with the 8-bit PCRE library (-lpcre on many quired to link with the 8-bit PCRE library (-lpcre on many
systems). systems).
--libs16 Writes to the standard output the command line options --libs16 Writes to the standard output the command line options re-
required to link with the 16-bit PCRE library (-lpcre16 on quired to link with the 16-bit PCRE library (-lpcre16 on many
many systems). systems).
--libs32 Writes to the standard output the command line options --libs32 Writes to the standard output the command line options re-
required to link with the 32-bit PCRE library (-lpcre32 on quired to link with the 32-bit PCRE library (-lpcre32 on many
many systems). systems).
--libs-cpp --libs-cpp
Writes to the standard output the command line options Writes to the standard output the command line options re-
required to link with PCRE's C++ wrapper library (-lpcrecpp quired to link with PCRE's C++ wrapper library (-lpcrecpp
-lpcre on many systems). -lpcre on many systems).
--libs-posix --libs-posix
Writes to the standard output the command line options Writes to the standard output the command line options re-
required to link with PCRE's POSIX API wrapper library quired to link with PCRE's POSIX API wrapper library
(-lpcreposix -lpcre on many systems). (-lpcreposix -lpcre on many systems).
--cflags Writes to the standard output the command line options --cflags Writes to the standard output the command line options re-
required to compile files that use PCRE (this may include quired to compile files that use PCRE (this may include some
some -I options, but is blank on many systems). -I options, but is blank on many systems).
--cflags-posix --cflags-posix
Writes to the standard output the command line options Writes to the standard output the command line options re-
required to compile files that use PCRE's POSIX API wrapper quired to compile files that use PCRE's POSIX API wrapper li-
library (this may include some -I options, but is blank on brary (this may include some -I options, but is blank on many
many systems). systems).
SEE ALSO SEE ALSO
......
pcre/doc/pcre.3
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...@@ -146,7 +146,7 @@ performance. ...@@ -146,7 +146,7 @@ performance.
One way of guarding against this possibility is to use the One way of guarding against this possibility is to use the
\fBpcre_fullinfo()\fP function to check the compiled pattern's options for UTF. \fBpcre_fullinfo()\fP function to check the compiled pattern's options for UTF.
Alternatively, from release 8.33, you can set the PCRE_NEVER_UTF option at Alternatively, from release 8.33, you can set the PCRE_NEVER_UTF option at
compile time. This causes an compile time error if a pattern contains a compile time. This causes a compile time error if a pattern contains a
UTF-setting sequence. UTF-setting sequence.
.P .P
If your application is one that supports UTF, be aware that validity checking If your application is one that supports UTF, be aware that validity checking
......
pcre/doc/pcre.txt
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This source diff could not be displayed because it is too large. You can view the blob instead.
pcre/doc/pcreapi.3
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...@@ -1227,7 +1227,7 @@ the following negative numbers: ...@@ -1227,7 +1227,7 @@ the following negative numbers:
PCRE_ERROR_BADOPTION the value of \fIwhat\fP was invalid PCRE_ERROR_BADOPTION the value of \fIwhat\fP was invalid
PCRE_ERROR_UNSET the requested field is not set PCRE_ERROR_UNSET the requested field is not set
.sp .sp
The "magic number" is placed at the start of each compiled pattern as an simple The "magic number" is placed at the start of each compiled pattern as a simple
check against passing an arbitrary memory pointer. The endianness error can check against passing an arbitrary memory pointer. The endianness error can
occur if a compiled pattern is saved and reloaded on a different host. Here is occur if a compiled pattern is saved and reloaded on a different host. Here is
a typical call of \fBpcre_fullinfo()\fP, to obtain the length of the compiled a typical call of \fBpcre_fullinfo()\fP, to obtain the length of the compiled
...@@ -1294,7 +1294,7 @@ returned. For anchored patterns, -2 is returned. ...@@ -1294,7 +1294,7 @@ returned. For anchored patterns, -2 is returned.
.sp .sp
Return the value of the first data unit (non-UTF character) of any matched Return the value of the first data unit (non-UTF character) of any matched
string in the situation where PCRE_INFO_FIRSTCHARACTERFLAGS returns 1; string in the situation where PCRE_INFO_FIRSTCHARACTERFLAGS returns 1;
otherwise return 0. The fourth argument should point to an \fBuint_t\fP otherwise return 0. The fourth argument should point to a \fBuint_t\fP
variable. variable.
.P .P
In the 8-bit library, the value is always less than 256. In the 16-bit library In the 8-bit library, the value is always less than 256. In the 16-bit library
...@@ -1560,7 +1560,7 @@ returned value 1 (with "z" returned from PCRE_INFO_REQUIREDCHAR), but for ...@@ -1560,7 +1560,7 @@ returned value 1 (with "z" returned from PCRE_INFO_REQUIREDCHAR), but for
.sp .sp
Return the value of the rightmost literal data unit that must exist in any Return the value of the rightmost literal data unit that must exist in any
matched string, other than at its start, if such a value has been recorded. The matched string, other than at its start, if such a value has been recorded. The
fourth argument should point to an \fBuint32_t\fP variable. If there is no such fourth argument should point to a \fBuint32_t\fP variable. If there is no such
value, 0 is returned. value, 0 is returned.
. .
. .
......
pcre/doc/pcregrep.txt
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...@@ -26,8 +26,8 @@ DESCRIPTION ...@@ -26,8 +26,8 @@ DESCRIPTION
If you attempt to use delimiters (for example, by surrounding a pattern If you attempt to use delimiters (for example, by surrounding a pattern
with slashes, as is common in Perl scripts), they are interpreted as with slashes, as is common in Perl scripts), they are interpreted as
part of the pattern. Quotes can of course be used to delimit patterns part of the pattern. Quotes can of course be used to delimit patterns
on the command line because they are interpreted by the shell, and on the command line because they are interpreted by the shell, and in-
indeed quotes are required if a pattern contains white space or shell deed quotes are required if a pattern contains white space or shell
metacharacters. metacharacters.
The first argument that follows any option settings is treated as the The first argument that follows any option settings is treated as the
...@@ -37,8 +37,8 @@ DESCRIPTION ...@@ -37,8 +37,8 @@ DESCRIPTION
or an argument pattern must be provided. or an argument pattern must be provided.
If no files are specified, pcregrep reads the standard input. The stan- If no files are specified, pcregrep reads the standard input. The stan-
dard input can also be referenced by a name consisting of a single dard input can also be referenced by a name consisting of a single hy-
hyphen. For example: phen. For example:
pcregrep some-pattern /file1 - /file3 pcregrep some-pattern /file1 - /file3
...@@ -47,8 +47,8 @@ DESCRIPTION ...@@ -47,8 +47,8 @@ DESCRIPTION
the start of each line, followed by a colon. However, there are options the start of each line, followed by a colon. However, there are options
that can change how pcregrep behaves. In particular, the -M option that can change how pcregrep behaves. In particular, the -M option
makes it possible to search for patterns that span line boundaries. makes it possible to search for patterns that span line boundaries.
What defines a line boundary is controlled by the -N (--newline) What defines a line boundary is controlled by the -N (--newline) op-
option. tion.
The amount of memory used for buffering files that are being scanned is The amount of memory used for buffering files that are being scanned is
controlled by a parameter that can be set by the --buffer-size option. controlled by a parameter that can be set by the --buffer-size option.
...@@ -66,12 +66,12 @@ DESCRIPTION ...@@ -66,12 +66,12 @@ DESCRIPTION
By default, as soon as one pattern matches a line, no further patterns By default, as soon as one pattern matches a line, no further patterns
are considered. However, if --colour (or --color) is used to colour the are considered. However, if --colour (or --color) is used to colour the
matching substrings, or if --only-matching, --file-offsets, or --line- matching substrings, or if --only-matching, --file-offsets, or --line-
offsets is used to output only the part of the line that matched offsets is used to output only the part of the line that matched (ei-
(either shown literally, or as an offset), scanning resumes immediately ther shown literally, or as an offset), scanning resumes immediately
following the match, so that further matches on the same line can be following the match, so that further matches on the same line can be
found. If there are multiple patterns, they are all tried on the found. If there are multiple patterns, they are all tried on the re-
remainder of the line, but patterns that follow the one that matched mainder of the line, but patterns that follow the one that matched are
are not tried on the earlier part of the line. not tried on the earlier part of the line.
This behaviour means that the order in which multiple patterns are This behaviour means that the order in which multiple patterns are
specified can affect the output when one of the above options is used. specified can affect the output when one of the above options is used.
...@@ -80,11 +80,11 @@ DESCRIPTION ...@@ -80,11 +80,11 @@ DESCRIPTION
overlap). overlap).
Patterns that can match an empty string are accepted, but empty string Patterns that can match an empty string are accepted, but empty string
matches are never recognized. An example is the pattern matches are never recognized. An example is the pattern "(su-
"(super)?(man)?", in which all components are optional. This pattern per)?(man)?", in which all components are optional. This pattern finds
finds all occurrences of both "super" and "man"; the output differs all occurrences of both "super" and "man"; the output differs from
from matching with "super|man" when only the matching substrings are matching with "super|man" when only the matching substrings are being
being shown. shown.
If the LC_ALL or LC_CTYPE environment variable is set, pcregrep uses If the LC_ALL or LC_CTYPE environment variable is set, pcregrep uses
the value to set a locale when calling the PCRE library. The --locale the value to set a locale when calling the PCRE library. The --locale
...@@ -105,9 +105,9 @@ BINARY FILES ...@@ -105,9 +105,9 @@ BINARY FILES
By default, a file that contains a binary zero byte within the first By default, a file that contains a binary zero byte within the first
1024 bytes is identified as a binary file, and is processed specially. 1024 bytes is identified as a binary file, and is processed specially.
(GNU grep also identifies binary files in this manner.) See the (GNU grep also identifies binary files in this manner.) See the --bi-
--binary-files option for a means of changing the way binary files are nary-files option for a means of changing the way binary files are han-
handled. dled.
OPTIONS OPTIONS
...@@ -151,16 +151,16 @@ OPTIONS ...@@ -151,16 +151,16 @@ OPTIONS
--binary-files=word --binary-files=word
Specify how binary files are to be processed. If the word is Specify how binary files are to be processed. If the word is
"binary" (the default), pattern matching is performed on "binary" (the default), pattern matching is performed on bi-
binary files, but the only output is "Binary file <name> nary files, but the only output is "Binary file <name>
matches" when a match succeeds. If the word is "text", which matches" when a match succeeds. If the word is "text", which
is equivalent to the -a or --text option, binary files are is equivalent to the -a or --text option, binary files are
processed in the same way as any other file. In this case, processed in the same way as any other file. In this case,
when a match succeeds, the output may be binary garbage, when a match succeeds, the output may be binary garbage,
which can have nasty effects if sent to a terminal. If the which can have nasty effects if sent to a terminal. If the
word is "without-match", which is equivalent to the -I word is "without-match", which is equivalent to the -I op-
option, binary files are not processed at all; they are tion, binary files are not processed at all; they are assumed
assumed not to be of interest. not to be of interest.
--buffer-size=number --buffer-size=number
Set the parameter that controls how much memory is used for Set the parameter that controls how much memory is used for
...@@ -201,15 +201,15 @@ OPTIONS ...@@ -201,15 +201,15 @@ OPTIONS
ronment variable PCREGREP_COLOUR or PCREGREP_COLOR. The value ronment variable PCREGREP_COLOUR or PCREGREP_COLOR. The value
of this variable should be a string of two numbers, separated of this variable should be a string of two numbers, separated
by a semicolon. They are copied directly into the control by a semicolon. They are copied directly into the control
string for setting colour on a terminal, so it is your string for setting colour on a terminal, so it is your re-
responsibility to ensure that they make sense. If neither of sponsibility to ensure that they make sense. If neither of
the environment variables is set, the default is "1;31", the environment variables is set, the default is "1;31",
which gives red. which gives red.
-D action, --devices=action -D action, --devices=action
If an input path is not a regular file or a directory, If an input path is not a regular file or a directory, "ac-
"action" specifies how it is to be processed. Valid values tion" specifies how it is to be processed. Valid values are
are "read" (the default) or "skip" (silently skip the path). "read" (the default) or "skip" (silently skip the path).
-d action, --directories=action -d action, --directories=action
If an input path is a directory, "action" specifies how it is If an input path is a directory, "action" specifies how it is
...@@ -218,8 +218,8 @@ OPTIONS ...@@ -218,8 +218,8 @@ OPTIONS
"recurse" (equivalent to the -r option), or "skip" (silently "recurse" (equivalent to the -r option), or "skip" (silently
skip the path, the default in Windows environments). In the skip the path, the default in Windows environments). In the
"read" case, directories are read as if they were ordinary "read" case, directories are read as if they were ordinary
files. In some operating systems the effect of reading a files. In some operating systems the effect of reading a di-
directory like this is an immediate end-of-file; in others it rectory like this is an immediate end-of-file; in others it
may provoke an error. may provoke an error.
-e pattern, --regex=pattern, --regexp=pattern -e pattern, --regex=pattern, --regexp=pattern
...@@ -249,8 +249,8 @@ OPTIONS ...@@ -249,8 +249,8 @@ OPTIONS
whether listed on the command line, obtained from --file- whether listed on the command line, obtained from --file-
list, or by scanning a directory. The pattern is a PCRE regu- list, or by scanning a directory. The pattern is a PCRE regu-
lar expression, and is matched against the final component of lar expression, and is matched against the final component of
the file name, not the entire path. The -F, -w, and -x the file name, not the entire path. The -F, -w, and -x op-
options do not apply to this pattern. The option may be given tions do not apply to this pattern. The option may be given
any number of times in order to specify multiple patterns. If any number of times in order to specify multiple patterns. If
a file name matches both an --include and an --exclude pat- a file name matches both an --include and an --exclude pat-
tern, it is excluded. There is no short form for this option. tern, it is excluded. There is no short form for this option.
...@@ -264,29 +264,29 @@ OPTIONS ...@@ -264,29 +264,29 @@ OPTIONS
--exclude-dir=pattern --exclude-dir=pattern
Directories whose names match the pattern are skipped without Directories whose names match the pattern are skipped without
being processed, whatever the setting of the --recursive being processed, whatever the setting of the --recursive op-
option. This applies to all directories, whether listed on tion. This applies to all directories, whether listed on the
the command line, obtained from --file-list, or by scanning a command line, obtained from --file-list, or by scanning a
parent directory. The pattern is a PCRE regular expression, parent directory. The pattern is a PCRE regular expression,
and is matched against the final component of the directory and is matched against the final component of the directory
name, not the entire path. The -F, -w, and -x options do not name, not the entire path. The -F, -w, and -x options do not
apply to this pattern. The option may be given any number of apply to this pattern. The option may be given any number of
times in order to specify more than one pattern. If a direc- times in order to specify more than one pattern. If a direc-
tory matches both --include-dir and --exclude-dir, it is tory matches both --include-dir and --exclude-dir, it is ex-
excluded. There is no short form for this option. cluded. There is no short form for this option.
-F, --fixed-strings -F, --fixed-strings
Interpret each data-matching pattern as a list of fixed Interpret each data-matching pattern as a list of fixed
strings, separated by newlines, instead of as a regular strings, separated by newlines, instead of as a regular ex-
expression. What constitutes a newline for this purpose is pression. What constitutes a newline for this purpose is con-
controlled by the --newline option. The -w (match as a word) trolled by the --newline option. The -w (match as a word) and
and -x (match whole line) options can be used with -F. They -x (match whole line) options can be used with -F. They ap-
apply to each of the fixed strings. A line is selected if any ply to each of the fixed strings. A line is selected if any
of the fixed strings are found in it (subject to -w or -x, if of the fixed strings are found in it (subject to -w or -x, if
present). This option applies only to the patterns that are present). This option applies only to the patterns that are
matched against the contents of files; it does not apply to matched against the contents of files; it does not apply to
patterns specified by any of the --include or --exclude patterns specified by any of the --include or --exclude op-
options. tions.
-f filename, --file=filename -f filename, --file=filename
Read patterns from the file, one per line, and match them Read patterns from the file, one per line, and match them
...@@ -358,16 +358,16 @@ OPTIONS ...@@ -358,16 +358,16 @@ OPTIONS
--include=pattern --include=pattern
If any --include patterns are specified, the only files that If any --include patterns are specified, the only files that
are processed are those that match one of the patterns (and are processed are those that match one of the patterns (and
do not match an --exclude pattern). This option does not do not match an --exclude pattern). This option does not af-
affect directories, but it applies to all files, whether fect directories, but it applies to all files, whether listed
listed on the command line, obtained from --file-list, or by on the command line, obtained from --file-list, or by scan-
scanning a directory. The pattern is a PCRE regular expres- ning a directory. The pattern is a PCRE regular expression,
sion, and is matched against the final component of the file and is matched against the final component of the file name,
name, not the entire path. The -F, -w, and -x options do not not the entire path. The -F, -w, and -x options do not apply
apply to this pattern. The option may be given any number of to this pattern. The option may be given any number of times.
times. If a file name matches both an --include and an If a file name matches both an --include and an --exclude
--exclude pattern, it is excluded. There is no short form pattern, it is excluded. There is no short form for this op-
for this option. tion.
--include-from=filename --include-from=filename
Treat each non-empty line of the file as the data for an Treat each non-empty line of the file as the data for an
...@@ -381,8 +381,8 @@ OPTIONS ...@@ -381,8 +381,8 @@ OPTIONS
tories that are processed are those that match one of the tories that are processed are those that match one of the
patterns (and do not match an --exclude-dir pattern). This patterns (and do not match an --exclude-dir pattern). This
applies to all directories, whether listed on the command applies to all directories, whether listed on the command
line, obtained from --file-list, or by scanning a parent line, obtained from --file-list, or by scanning a parent di-
directory. The pattern is a PCRE regular expression, and is rectory. The pattern is a PCRE regular expression, and is
matched against the final component of the directory name, matched against the final component of the directory name,
not the entire path. The -F, -w, and -x options do not apply not the entire path. The -F, -w, and -x options do not apply
to this pattern. The option may be given any number of times. to this pattern. The option may be given any number of times.
...@@ -413,9 +413,9 @@ OPTIONS ...@@ -413,9 +413,9 @@ OPTIONS
--line-buffered --line-buffered
When this option is given, input is read and processed line When this option is given, input is read and processed line
by line, and the output is flushed after each write. By by line, and the output is flushed after each write. By de-
default, input is read in large chunks, unless pcregrep can fault, input is read in large chunks, unless pcregrep can de-
determine that it is reading from a terminal (which is cur- termine that it is reading from a terminal (which is cur-
rently possible only in Unix-like environments). Output to rently possible only in Unix-like environments). Output to
terminal is normally automatically flushed by the operating terminal is normally automatically flushed by the operating
system. This option can be useful when the input or output is system. This option can be useful when the input or output is
...@@ -437,9 +437,9 @@ OPTIONS ...@@ -437,9 +437,9 @@ OPTIONS
--locale=locale-name --locale=locale-name
This option specifies a locale to be used for pattern match- This option specifies a locale to be used for pattern match-
ing. It overrides the value in the LC_ALL or LC_CTYPE envi- ing. It overrides the value in the LC_ALL or LC_CTYPE envi-
ronment variables. If no locale is specified, the PCRE ronment variables. If no locale is specified, the PCRE li-
library's default (usually the "C" locale) is used. There is brary's default (usually the "C" locale) is used. There is no
no short form for this option. short form for this option.
--match-limit=number --match-limit=number
Processing some regular expression patterns can require a Processing some regular expression patterns can require a
...@@ -447,26 +447,26 @@ OPTIONS ...@@ -447,26 +447,26 @@ OPTIONS
gram crash if not enough is available. Other patterns may gram crash if not enough is available. Other patterns may
take a very long time to search for all possible matching take a very long time to search for all possible matching
strings. The pcre_exec() function that is called by pcregrep strings. The pcre_exec() function that is called by pcregrep
to do the matching has two parameters that can limit the to do the matching has two parameters that can limit the re-
resources that it uses. sources that it uses.
The --match-limit option provides a means of limiting The --match-limit option provides a means of limiting re-
resource usage when processing patterns that are not going to source usage when processing patterns that are not going to
match, but which have a very large number of possibilities in match, but which have a very large number of possibilities in
their search trees. The classic example is a pattern that their search trees. The classic example is a pattern that
uses nested unlimited repeats. Internally, PCRE uses a func- uses nested unlimited repeats. Internally, PCRE uses a func-
tion called match() which it calls repeatedly (sometimes tion called match() which it calls repeatedly (sometimes re-
recursively). The limit set by --match-limit is imposed on cursively). The limit set by --match-limit is imposed on the
the number of times this function is called during a match, number of times this function is called during a match, which
which has the effect of limiting the amount of backtracking has the effect of limiting the amount of backtracking that
that can take place. can take place.
The --recursion-limit option is similar to --match-limit, but The --recursion-limit option is similar to --match-limit, but
instead of limiting the total number of times that match() is instead of limiting the total number of times that match() is
called, it limits the depth of recursive calls, which in turn called, it limits the depth of recursive calls, which in turn
limits the amount of memory that can be used. The recursion limits the amount of memory that can be used. The recursion
depth is a smaller number than the total number of calls, depth is a smaller number than the total number of calls, be-
because not all calls to match() are recursive. This limit is cause not all calls to match() are recursive. This limit is
of use only if it is set smaller than --match-limit. of use only if it is set smaller than --match-limit.
There are no short forms for these options. The default set- There are no short forms for these options. The default set-
...@@ -494,30 +494,30 @@ OPTIONS ...@@ -494,30 +494,30 @@ OPTIONS
is read line by line (see --line-buffered.) is read line by line (see --line-buffered.)
-N newline-type, --newline=newline-type -N newline-type, --newline=newline-type
The PCRE library supports five different conventions for The PCRE library supports five different conventions for in-
indicating the ends of lines. They are the single-character dicating the ends of lines. They are the single-character se-
sequences CR (carriage return) and LF (linefeed), the two- quences CR (carriage return) and LF (linefeed), the two-char-
character sequence CRLF, an "anycrlf" convention, which rec- acter sequence CRLF, an "anycrlf" convention, which recog-
ognizes any of the preceding three types, and an "any" con- nizes any of the preceding three types, and an "any" conven-
vention, in which any Unicode line ending sequence is assumed tion, in which any Unicode line ending sequence is assumed to
to end a line. The Unicode sequences are the three just men- end a line. The Unicode sequences are the three just men-
tioned, plus VT (vertical tab, U+000B), FF (form feed, tioned, plus VT (vertical tab, U+000B), FF (form feed,
U+000C), NEL (next line, U+0085), LS (line separator, U+000C), NEL (next line, U+0085), LS (line separator,
U+2028), and PS (paragraph separator, U+2029). U+2028), and PS (paragraph separator, U+2029).
When the PCRE library is built, a default line-ending When the PCRE library is built, a default line-ending se-
sequence is specified. This is normally the standard quence is specified. This is normally the standard sequence
sequence for the operating system. Unless otherwise specified for the operating system. Unless otherwise specified by this
by this option, pcregrep uses the library's default. The option, pcregrep uses the library's default. The possible
possible values for this option are CR, LF, CRLF, ANYCRLF, or values for this option are CR, LF, CRLF, ANYCRLF, or ANY.
ANY. This makes it possible to use pcregrep to scan files This makes it possible to use pcregrep to scan files that
that have come from other environments without having to mod- have come from other environments without having to modify
ify their line endings. If the data that is being scanned their line endings. If the data that is being scanned does
does not agree with the convention set by this option, pcre- not agree with the convention set by this option, pcregrep
grep may behave in strange ways. Note that this option does may behave in strange ways. Note that this option does not
not apply to files specified by the -f, --exclude-from, or apply to files specified by the -f, --exclude-from, or --in-
--include-from options, which are expected to use the operat- clude-from options, which are expected to use the operating
ing system's standard newline sequence. system's standard newline sequence.
-n, --line-number -n, --line-number
Precede each output line by its line number in the file, fol- Precede each output line by its line number in the file, fol-
...@@ -538,12 +538,12 @@ OPTIONS ...@@ -538,12 +538,12 @@ OPTIONS
is, the -A, -B, and -C options are ignored. If there is more is, the -A, -B, and -C options are ignored. If there is more
than one match in a line, each of them is shown separately. than one match in a line, each of them is shown separately.
If -o is combined with -v (invert the sense of the match to If -o is combined with -v (invert the sense of the match to
find non-matching lines), no output is generated, but the find non-matching lines), no output is generated, but the re-
return code is set appropriately. If the matched portion of turn code is set appropriately. If the matched portion of the
the line is empty, nothing is output unless the file name or line is empty, nothing is output unless the file name or line
line number are being printed, in which case they are shown number are being printed, in which case they are shown on an
on an otherwise empty line. This option is mutually exclusive otherwise empty line. This option is mutually exclusive with
with --file-offsets and --line-offsets. --file-offsets and --line-offsets.
-onumber, --only-matching=number -onumber, --only-matching=number
Show only the part of the line that matched the capturing Show only the part of the line that matched the capturing
...@@ -579,8 +579,8 @@ OPTIONS ...@@ -579,8 +579,8 @@ OPTIONS
it contains, taking note of any --include and --exclude set- it contains, taking note of any --include and --exclude set-
tings. By default, a directory is read as a normal file; in tings. By default, a directory is read as a normal file; in
some operating systems this gives an immediate end-of-file. some operating systems this gives an immediate end-of-file.
This option is a shorthand for setting the -d option to This option is a shorthand for setting the -d option to "re-
"recurse". curse".
--recursion-limit=number --recursion-limit=number
See --match-limit above. See --match-limit above.
...@@ -626,10 +626,10 @@ OPTIONS ...@@ -626,10 +626,10 @@ OPTIONS
ENVIRONMENT VARIABLES ENVIRONMENT VARIABLES
The environment variables LC_ALL and LC_CTYPE are examined, in that The environment variables LC_ALL and LC_CTYPE are examined, in that or-
order, for a locale. The first one that is set is used. This can be der, for a locale. The first one that is set is used. This can be over-
overridden by the --locale option. If no locale is set, the PCRE ridden by the --locale option. If no locale is set, the PCRE library's
library's default (usually the "C" locale) is used. default (usually the "C" locale) is used.
NEWLINES NEWLINES
...@@ -640,8 +640,8 @@ NEWLINES ...@@ -640,8 +640,8 @@ NEWLINES
ever newline sequences they have in the input. However, the setting of ever newline sequences they have in the input. However, the setting of
this option does not affect the interpretation of files specified by this option does not affect the interpretation of files specified by
the -f, --exclude-from, or --include-from options, which are assumed to the -f, --exclude-from, or --include-from options, which are assumed to
use the operating system's standard newline sequence, nor does it use the operating system's standard newline sequence, nor does it af-
affect the way in which pcregrep writes informational messages to the fect the way in which pcregrep writes informational messages to the
standard error and output streams. For these it uses the string "\n" to standard error and output streams. For these it uses the string "\n" to
indicate newlines, relying on the C I/O library to convert this to an indicate newlines, relying on the C I/O library to convert this to an
appropriate sequence. appropriate sequence.
...@@ -687,13 +687,13 @@ OPTIONS WITH DATA ...@@ -687,13 +687,13 @@ OPTIONS WITH DATA
--file /some/file --file /some/file
Note, however, that if you want to supply a file name beginning with ~ Note, however, that if you want to supply a file name beginning with ~
as data in a shell command, and have the shell expand ~ to a home as data in a shell command, and have the shell expand ~ to a home di-
directory, you must separate the file name from the option, because the rectory, you must separate the file name from the option, because the
shell does not treat ~ specially unless it is at the start of an item. shell does not treat ~ specially unless it is at the start of an item.
The exceptions to the above are the --colour (or --color) and --only- The exceptions to the above are the --colour (or --color) and --only-
matching options, for which the data is optional. If one of these matching options, for which the data is optional. If one of these op-
options does have data, it must be given in the first form, using an tions does have data, it must be given in the first form, using an
equals character. Otherwise pcregrep will assume that it has no data. equals character. Otherwise pcregrep will assume that it has no data.
...@@ -702,14 +702,14 @@ MATCHING ERRORS ...@@ -702,14 +702,14 @@ MATCHING ERRORS
It is possible to supply a regular expression that takes a very long It is possible to supply a regular expression that takes a very long
time to fail to match certain lines. Such patterns normally involve time to fail to match certain lines. Such patterns normally involve
nested indefinite repeats, for example: (a+)*\d when matched against a nested indefinite repeats, for example: (a+)*\d when matched against a
line of a's with no final digit. The PCRE matching function has a line of a's with no final digit. The PCRE matching function has a re-
resource limit that causes it to abort in these circumstances. If this source limit that causes it to abort in these circumstances. If this
happens, pcregrep outputs an error message and the line that caused the happens, pcregrep outputs an error message and the line that caused the
problem to the standard error stream. If there are more than 20 such problem to the standard error stream. If there are more than 20 such
errors, pcregrep gives up. errors, pcregrep gives up.
The --match-limit option of pcregrep can be used to set the overall The --match-limit option of pcregrep can be used to set the overall re-
resource limit; there is a second option called --recursion-limit that source limit; there is a second option called --recursion-limit that
sets a limit on the amount of memory (usually stack) that is used (see sets a limit on the amount of memory (usually stack) that is used (see
the discussion of these options above). the discussion of these options above).
......
pcre/doc/pcretest.1
View file @ d233fd14
.TH PCRETEST 1 "23 February 2017" "PCRE 8.41" .TH PCRETEST 1 "10 February 2020" "PCRE 8.44"
.SH NAME .SH NAME
pcretest - a program for testing Perl-compatible regular expressions. pcretest - a program for testing Perl-compatible regular expressions.
.SH SYNOPSIS .SH SYNOPSIS
...@@ -78,21 +78,19 @@ the 16-bit library, or \fBpcre32_xx\fP when using the 32-bit library". ...@@ -78,21 +78,19 @@ the 16-bit library, or \fBpcre32_xx\fP when using the 32-bit library".
.rs .rs
.TP 10 .TP 10
\fB-8\fP \fB-8\fP
If both the 8-bit library has been built, this option causes the 8-bit library If the 8-bit library has been built, this option causes it to be used (this is
to be used (which is the default); if the 8-bit library has not been built, the default). If the 8-bit library has not been built, this option causes an
this option causes an error. error.
.TP 10 .TP 10
\fB-16\fP \fB-16\fP
If both the 8-bit or the 32-bit, and the 16-bit libraries have been built, this If the 16-bit library has been built, this option causes it to be used. If only
option causes the 16-bit library to be used. If only the 16-bit library has been the 16-bit library has been built, this is the default. If the 16-bit library
built, this is the default (so has no effect). If only the 8-bit or the 32-bit has not been built, this option causes an error.
library has been built, this option causes an error.
.TP 10 .TP 10
\fB-32\fP \fB-32\fP
If both the 8-bit or the 16-bit, and the 32-bit libraries have been built, this If the 32-bit library has been built, this option causes it to be used. If only
option causes the 32-bit library to be used. If only the 32-bit library has been the 32-bit library has been built, this is the default. If the 32-bit library
built, this is the default (so has no effect). If only the 8-bit or the 16-bit has not been built, this option causes an error.
library has been built, this option causes an error.
.TP 10 .TP 10
\fB-b\fP \fB-b\fP
Behave as if each pattern has the \fB/B\fP (show byte code) modifier; the Behave as if each pattern has the \fB/B\fP (show byte code) modifier; the
...@@ -1155,6 +1153,6 @@ Cambridge CB2 3QH, England. ...@@ -1155,6 +1153,6 @@ Cambridge CB2 3QH, England.
.rs .rs
.sp .sp
.nf .nf
Last updated: 23 February 2017 Last updated: 10 February 2020
Copyright (c) 1997-2017 University of Cambridge. Copyright (c) 1997-2020 University of Cambridge.
.fi .fi
pcre/doc/pcretest.txt
View file @ d233fd14
...@@ -47,15 +47,15 @@ INPUT DATA FORMAT ...@@ -47,15 +47,15 @@ INPUT DATA FORMAT
PCRE's 8-BIT, 16-BIT AND 32-BIT LIBRARIES PCRE's 8-BIT, 16-BIT AND 32-BIT LIBRARIES
From release 8.30, two separate PCRE libraries can be built. The origi- From release 8.30, two separate PCRE libraries can be built. The origi-
nal one supports 8-bit character strings, whereas the newer 16-bit nal one supports 8-bit character strings, whereas the newer 16-bit li-
library supports character strings encoded in 16-bit units. From brary supports character strings encoded in 16-bit units. From release
release 8.32, a third library can be built, supporting character 8.32, a third library can be built, supporting character strings en-
strings encoded in 32-bit units. The pcretest program can be used to coded in 32-bit units. The pcretest program can be used to test all
test all three libraries. However, it is itself still an 8-bit program, three libraries. However, it is itself still an 8-bit program, reading
reading 8-bit input and writing 8-bit output. When testing the 16-bit 8-bit input and writing 8-bit output. When testing the 16-bit or
or 32-bit library, the patterns and data strings are converted to 16- 32-bit library, the patterns and data strings are converted to 16- or
or 32-bit format before being passed to the PCRE library functions. 32-bit format before being passed to the PCRE library functions. Re-
Results are converted to 8-bit for output. sults are converted to 8-bit for output.
References to functions and structures of the form pcre[16|32]_xx below References to functions and structures of the form pcre[16|32]_xx below
mean "pcre_xx when using the 8-bit library, pcre16_xx when using the mean "pcre_xx when using the 8-bit library, pcre16_xx when using the
...@@ -64,34 +64,31 @@ PCRE's 8-BIT, 16-BIT AND 32-BIT LIBRARIES ...@@ -64,34 +64,31 @@ PCRE's 8-BIT, 16-BIT AND 32-BIT LIBRARIES
COMMAND LINE OPTIONS COMMAND LINE OPTIONS
-8 If both the 8-bit library has been built, this option causes -8 If the 8-bit library has been built, this option causes it to
the 8-bit library to be used (which is the default); if the be used (this is the default). If the 8-bit library has not
8-bit library has not been built, this option causes an been built, this option causes an error.
error.
-16 If both the 8-bit or the 32-bit, and the 16-bit libraries -16 If the 16-bit library has been built, this option causes it
have been built, this option causes the 16-bit library to be to be used. If only the 16-bit library has been built, this
used. If only the 16-bit library has been built, this is the is the default. If the 16-bit library has not been built,
default (so has no effect). If only the 8-bit or the 32-bit this option causes an error.
library has been built, this option causes an error.
-32 If both the 8-bit or the 16-bit, and the 32-bit libraries -32 If the 32-bit library has been built, this option causes it
have been built, this option causes the 32-bit library to be to be used. If only the 32-bit library has been built, this
used. If only the 32-bit library has been built, this is the is the default. If the 32-bit library has not been built,
default (so has no effect). If only the 8-bit or the 16-bit this option causes an error.
library has been built, this option causes an error.
-b Behave as if each pattern has the /B (show byte code) modi- -b Behave as if each pattern has the /B (show byte code) modi-
fier; the internal form is output after compilation. fier; the internal form is output after compilation.
-C Output the version number of the PCRE library, and all avail- -C Output the version number of the PCRE library, and all avail-
able information about the optional features that are able information about the optional features that are in-
included, and then exit with zero exit code. All other cluded, and then exit with zero exit code. All other options
options are ignored. are ignored.
-C option Output information about a specific build-time option, then -C option Output information about a specific build-time option, then
exit. This functionality is intended for use in scripts such exit. This functionality is intended for use in scripts such
as RunTest. The following options output the value and set as RunTest. The following options output the value and set
the exit code as indicated: the exit code as indicated:
ebcdic-nl the code for LF (= NL) in an EBCDIC environment: ebcdic-nl the code for LF (= NL) in an EBCDIC environment:
...@@ -107,7 +104,7 @@ COMMAND LINE OPTIONS ...@@ -107,7 +104,7 @@ COMMAND LINE OPTIONS
ANYCRLF or ANY ANYCRLF or ANY
exit code is always 0 exit code is always 0
The following options output 1 for true or 0 for false, and The following options output 1 for true or 0 for false, and
set the exit code to the same value: set the exit code to the same value:
ebcdic compiled for an EBCDIC environment ebcdic compiled for an EBCDIC environment
...@@ -119,61 +116,61 @@ COMMAND LINE OPTIONS ...@@ -119,61 +116,61 @@ COMMAND LINE OPTIONS
utf UTF-8 and/or UTF-16 and/or UTF-32 support utf UTF-8 and/or UTF-16 and/or UTF-32 support
is available is available
If an unknown option is given, an error message is output; If an unknown option is given, an error message is output;
the exit code is 0. the exit code is 0.
-d Behave as if each pattern has the /D (debug) modifier; the -d Behave as if each pattern has the /D (debug) modifier; the
internal form and information about the compiled pattern is internal form and information about the compiled pattern is
output after compilation; -d is equivalent to -b -i. output after compilation; -d is equivalent to -b -i.
-dfa Behave as if each data line contains the \D escape sequence; -dfa Behave as if each data line contains the \D escape sequence;
this causes the alternative matching function, this causes the alternative matching function,
pcre[16|32]_dfa_exec(), to be used instead of the standard pcre[16|32]_dfa_exec(), to be used instead of the standard
pcre[16|32]_exec() function (more detail is given below). pcre[16|32]_exec() function (more detail is given below).
-help Output a brief summary these options and then exit. -help Output a brief summary these options and then exit.
-i Behave as if each pattern has the /I modifier; information -i Behave as if each pattern has the /I modifier; information
about the compiled pattern is given after compilation. about the compiled pattern is given after compilation.
-M Behave as if each data line contains the \M escape sequence; -M Behave as if each data line contains the \M escape sequence;
this causes PCRE to discover the minimum MATCH_LIMIT and this causes PCRE to discover the minimum MATCH_LIMIT and
MATCH_LIMIT_RECURSION settings by calling pcre[16|32]_exec() MATCH_LIMIT_RECURSION settings by calling pcre[16|32]_exec()
repeatedly with different limits. repeatedly with different limits.
-m Output the size of each compiled pattern after it has been -m Output the size of each compiled pattern after it has been
compiled. This is equivalent to adding /M to each regular compiled. This is equivalent to adding /M to each regular ex-
expression. The size is given in bytes for both libraries. pression. The size is given in bytes for both libraries.
-O Behave as if each pattern has the /O modifier, that is dis- -O Behave as if each pattern has the /O modifier, that is dis-
able auto-possessification for all patterns. able auto-possessification for all patterns.
-o osize Set the number of elements in the output vector that is used -o osize Set the number of elements in the output vector that is used
when calling pcre[16|32]_exec() or pcre[16|32]_dfa_exec() to when calling pcre[16|32]_exec() or pcre[16|32]_dfa_exec() to
be osize. The default value is 45, which is enough for 14 be osize. The default value is 45, which is enough for 14
capturing subexpressions for pcre[16|32]_exec() or 22 differ- capturing subexpressions for pcre[16|32]_exec() or 22 differ-
ent matches for pcre[16|32]_dfa_exec(). The vector size can ent matches for pcre[16|32]_dfa_exec(). The vector size can
be changed for individual matching calls by including \O in be changed for individual matching calls by including \O in
the data line (see below). the data line (see below).
-p Behave as if each pattern has the /P modifier; the POSIX -p Behave as if each pattern has the /P modifier; the POSIX
wrapper API is used to call PCRE. None of the other options wrapper API is used to call PCRE. None of the other options
has any effect when -p is set. This option can be used only has any effect when -p is set. This option can be used only
with the 8-bit library. with the 8-bit library.
-q Do not output the version number of pcretest at the start of -q Do not output the version number of pcretest at the start of
execution. execution.
-S size On Unix-like systems, set the size of the run-time stack to -S size On Unix-like systems, set the size of the run-time stack to
size megabytes. size megabytes.
-s or -s+ Behave as if each pattern has the /S modifier; in other -s or -s+ Behave as if each pattern has the /S modifier; in other
words, force each pattern to be studied. If -s+ is used, all words, force each pattern to be studied. If -s+ is used, all
the JIT compile options are passed to pcre[16|32]_study(), the JIT compile options are passed to pcre[16|32]_study(),
causing just-in-time optimization to be set up if it is causing just-in-time optimization to be set up if it is
available, for both full and partial matching. Specific JIT available, for both full and partial matching. Specific JIT
compile options can be selected by following -s+ with a digit compile options can be selected by following -s+ with a digit
in the range 1 to 7, which selects the JIT compile modes as in the range 1 to 7, which selects the JIT compile modes as
follows: follows:
1 normal match only 1 normal match only
...@@ -183,119 +180,119 @@ COMMAND LINE OPTIONS ...@@ -183,119 +180,119 @@ COMMAND LINE OPTIONS
6 soft and hard partial match 6 soft and hard partial match
7 all three modes (default) 7 all three modes (default)
If -s++ is used instead of -s+ (with or without a following If -s++ is used instead of -s+ (with or without a following
digit), the text "(JIT)" is added to the first output line digit), the text "(JIT)" is added to the first output line
after a match or no match when JIT-compiled code was actually after a match or no match when JIT-compiled code was actually
used. used.
Note that there are pattern options that can override -s, Note that there are pattern options that can override -s, ei-
either specifying no studying at all, or suppressing JIT com- ther specifying no studying at all, or suppressing JIT compi-
pilation. lation.
If the /I or /D option is present on a pattern (requesting If the /I or /D option is present on a pattern (requesting
output about the compiled pattern), information about the output about the compiled pattern), information about the re-
result of studying is not included when studying is caused sult of studying is not included when studying is caused only
only by -s and neither -i nor -d is present on the command by -s and neither -i nor -d is present on the command line.
line. This behaviour means that the output from tests that This behaviour means that the output from tests that are run
are run with and without -s should be identical, except when with and without -s should be identical, except when options
options that output information about the actual running of a that output information about the actual running of a match
match are set. are set.
The -M, -t, and -tm options, which give information about The -M, -t, and -tm options, which give information about re-
resources used, are likely to produce different output with sources used, are likely to produce different output with and
and without -s. Output may also differ if the /C option is without -s. Output may also differ if the /C option is
present on an individual pattern. This uses callouts to trace present on an individual pattern. This uses callouts to trace
the the matching process, and this may be different between the the matching process, and this may be different between
studied and non-studied patterns. If the pattern contains studied and non-studied patterns. If the pattern contains
(*MARK) items there may also be differences, for the same (*MARK) items there may also be differences, for the same
reason. The -s command line option can be overridden for spe- reason. The -s command line option can be overridden for spe-
cific patterns that should never be studied (see the /S pat- cific patterns that should never be studied (see the /S pat-
tern modifier below). tern modifier below).
-t Run each compile, study, and match many times with a timer, -t Run each compile, study, and match many times with a timer,
and output the resulting times per compile, study, or match and output the resulting times per compile, study, or match
(in milliseconds). Do not set -m with -t, because you will (in milliseconds). Do not set -m with -t, because you will
then get the size output a zillion times, and the timing will then get the size output a zillion times, and the timing will
be distorted. You can control the number of iterations that be distorted. You can control the number of iterations that
are used for timing by following -t with a number (as a sepa- are used for timing by following -t with a number (as a sepa-
rate item on the command line). For example, "-t 1000" iter- rate item on the command line). For example, "-t 1000" iter-
ates 1000 times. The default is to iterate 500000 times. ates 1000 times. The default is to iterate 500000 times.
-tm This is like -t except that it times only the matching phase, -tm This is like -t except that it times only the matching phase,
not the compile or study phases. not the compile or study phases.
-T -TM These behave like -t and -tm, but in addition, at the end of -T -TM These behave like -t and -tm, but in addition, at the end of
a run, the total times for all compiles, studies, and matches a run, the total times for all compiles, studies, and matches
are output. are output.
DESCRIPTION DESCRIPTION
If pcretest is given two filename arguments, it reads from the first If pcretest is given two filename arguments, it reads from the first
and writes to the second. If it is given only one filename argument, it and writes to the second. If it is given only one filename argument, it
reads from that file and writes to stdout. Otherwise, it reads from reads from that file and writes to stdout. Otherwise, it reads from
stdin and writes to stdout, and prompts for each line of input, using stdin and writes to stdout, and prompts for each line of input, using
"re>" to prompt for regular expressions, and "data>" to prompt for data "re>" to prompt for regular expressions, and "data>" to prompt for data
lines. lines.
When pcretest is built, a configuration option can specify that it When pcretest is built, a configuration option can specify that it
should be linked with the libreadline library. When this is done, if should be linked with the libreadline library. When this is done, if
the input is from a terminal, it is read using the readline() function. the input is from a terminal, it is read using the readline() function.
This provides line-editing and history facilities. The output from the This provides line-editing and history facilities. The output from the
-help option states whether or not readline() will be used. -help option states whether or not readline() will be used.
The program handles any number of sets of input on a single input file. The program handles any number of sets of input on a single input file.
Each set starts with a regular expression, and continues with any num- Each set starts with a regular expression, and continues with any num-
ber of data lines to be matched against that pattern. ber of data lines to be matched against that pattern.
Each data line is matched separately and independently. If you want to Each data line is matched separately and independently. If you want to
do multi-line matches, you have to use the \n escape sequence (or \r or do multi-line matches, you have to use the \n escape sequence (or \r or
\r\n, etc., depending on the newline setting) in a single line of input \r\n, etc., depending on the newline setting) in a single line of input
to encode the newline sequences. There is no limit on the length of to encode the newline sequences. There is no limit on the length of
data lines; the input buffer is automatically extended if it is too data lines; the input buffer is automatically extended if it is too
small. small.
An empty line signals the end of the data lines, at which point a new An empty line signals the end of the data lines, at which point a new
regular expression is read. The regular expressions are given enclosed regular expression is read. The regular expressions are given enclosed
in any non-alphanumeric delimiters other than backslash, for example: in any non-alphanumeric delimiters other than backslash, for example:
/(a|bc)x+yz/ /(a|bc)x+yz/
White space before the initial delimiter is ignored. A regular expres- White space before the initial delimiter is ignored. A regular expres-
sion may be continued over several input lines, in which case the new- sion may be continued over several input lines, in which case the new-
line characters are included within it. It is possible to include the line characters are included within it. It is possible to include the
delimiter within the pattern by escaping it, for example delimiter within the pattern by escaping it, for example
/abc\/def/ /abc\/def/
If you do so, the escape and the delimiter form part of the pattern, If you do so, the escape and the delimiter form part of the pattern,
but since delimiters are always non-alphanumeric, this does not affect but since delimiters are always non-alphanumeric, this does not affect
its interpretation. If the terminating delimiter is immediately fol- its interpretation. If the terminating delimiter is immediately fol-
lowed by a backslash, for example, lowed by a backslash, for example,
/abc/\ /abc/\
then a backslash is added to the end of the pattern. This is done to then a backslash is added to the end of the pattern. This is done to
provide a way of testing the error condition that arises if a pattern provide a way of testing the error condition that arises if a pattern
finishes with a backslash, because finishes with a backslash, because
/abc\/ /abc\/
is interpreted as the first line of a pattern that starts with "abc/", is interpreted as the first line of a pattern that starts with "abc/",
causing pcretest to read the next line as a continuation of the regular causing pcretest to read the next line as a continuation of the regular
expression. expression.
PATTERN MODIFIERS PATTERN MODIFIERS
A pattern may be followed by any number of modifiers, which are mostly A pattern may be followed by any number of modifiers, which are mostly
single characters, though some of these can be qualified by further single characters, though some of these can be qualified by further
characters. Following Perl usage, these are referred to below as, for characters. Following Perl usage, these are referred to below as, for
example, "the /i modifier", even though the delimiter of the pattern example, "the /i modifier", even though the delimiter of the pattern
need not always be a slash, and no slash is used when writing modi- need not always be a slash, and no slash is used when writing modi-
fiers. White space may appear between the final pattern delimiter and fiers. White space may appear between the final pattern delimiter and
the first modifier, and between the modifiers themselves. For refer- the first modifier, and between the modifiers themselves. For refer-
ence, here is a complete list of modifiers. They fall into several ence, here is a complete list of modifiers. They fall into several
groups that are described in detail in the following sections. groups that are described in detail in the following sections.
/8 set UTF mode /8 set UTF mode
...@@ -347,8 +344,8 @@ PATTERN MODIFIERS ...@@ -347,8 +344,8 @@ PATTERN MODIFIERS
Perl-compatible modifiers Perl-compatible modifiers
The /i, /m, /s, and /x modifiers set the PCRE_CASELESS, PCRE_MULTILINE, The /i, /m, /s, and /x modifiers set the PCRE_CASELESS, PCRE_MULTILINE,
PCRE_DOTALL, or PCRE_EXTENDED options, respectively, when PCRE_DOTALL, or PCRE_EXTENDED options, respectively, when
pcre[16|32]_compile() is called. These four modifier letters have the pcre[16|32]_compile() is called. These four modifier letters have the
same effect as they do in Perl. For example: same effect as they do in Perl. For example:
/caseless/i /caseless/i
...@@ -356,7 +353,7 @@ PATTERN MODIFIERS ...@@ -356,7 +353,7 @@ PATTERN MODIFIERS
Modifiers for other PCRE options Modifiers for other PCRE options
The following table shows additional modifiers for setting PCRE com- The following table shows additional modifiers for setting PCRE com-
pile-time options that do not correspond to anything in Perl: pile-time options that do not correspond to anything in Perl:
/8 PCRE_UTF8 ) when using the 8-bit /8 PCRE_UTF8 ) when using the 8-bit
...@@ -389,145 +386,145 @@ PATTERN MODIFIERS ...@@ -389,145 +386,145 @@ PATTERN MODIFIERS
/<bsr_unicode> PCRE_BSR_UNICODE /<bsr_unicode> PCRE_BSR_UNICODE
/<JS> PCRE_JAVASCRIPT_COMPAT /<JS> PCRE_JAVASCRIPT_COMPAT
The modifiers that are enclosed in angle brackets are literal strings The modifiers that are enclosed in angle brackets are literal strings
as shown, including the angle brackets, but the letters within can be as shown, including the angle brackets, but the letters within can be
in either case. This example sets multiline matching with CRLF as the in either case. This example sets multiline matching with CRLF as the
line ending sequence: line ending sequence:
/^abc/m<CRLF> /^abc/m<CRLF>
As well as turning on the PCRE_UTF8/16/32 option, the /8 modifier As well as turning on the PCRE_UTF8/16/32 option, the /8 modifier
causes all non-printing characters in output strings to be printed causes all non-printing characters in output strings to be printed us-
using the \x{hh...} notation. Otherwise, those less than 0x100 are out- ing the \x{hh...} notation. Otherwise, those less than 0x100 are output
put in hex without the curly brackets. in hex without the curly brackets.
Full details of the PCRE options are given in the pcreapi documenta- Full details of the PCRE options are given in the pcreapi documenta-
tion. tion.
Finding all matches in a string Finding all matches in a string
Searching for all possible matches within each subject string can be Searching for all possible matches within each subject string can be
requested by the /g or /G modifier. After finding a match, PCRE is requested by the /g or /G modifier. After finding a match, PCRE is
called again to search the remainder of the subject string. The differ- called again to search the remainder of the subject string. The differ-
ence between /g and /G is that the former uses the startoffset argument ence between /g and /G is that the former uses the startoffset argument
to pcre[16|32]_exec() to start searching at a new point within the to pcre[16|32]_exec() to start searching at a new point within the en-
entire string (which is in effect what Perl does), whereas the latter tire string (which is in effect what Perl does), whereas the latter
passes over a shortened substring. This makes a difference to the passes over a shortened substring. This makes a difference to the
matching process if the pattern begins with a lookbehind assertion matching process if the pattern begins with a lookbehind assertion (in-
(including \b or \B). cluding \b or \B).
If any call to pcre[16|32]_exec() in a /g or /G sequence matches an If any call to pcre[16|32]_exec() in a /g or /G sequence matches an
empty string, the next call is done with the PCRE_NOTEMPTY_ATSTART and empty string, the next call is done with the PCRE_NOTEMPTY_ATSTART and
PCRE_ANCHORED flags set in order to search for another, non-empty, PCRE_ANCHORED flags set in order to search for another, non-empty,
match at the same point. If this second match fails, the start offset match at the same point. If this second match fails, the start offset
is advanced, and the normal match is retried. This imitates the way is advanced, and the normal match is retried. This imitates the way
Perl handles such cases when using the /g modifier or the split() func- Perl handles such cases when using the /g modifier or the split() func-
tion. Normally, the start offset is advanced by one character, but if tion. Normally, the start offset is advanced by one character, but if
the newline convention recognizes CRLF as a newline, and the current the newline convention recognizes CRLF as a newline, and the current
character is CR followed by LF, an advance of two is used. character is CR followed by LF, an advance of two is used.
Other modifiers Other modifiers
There are yet more modifiers for controlling the way pcretest operates. There are yet more modifiers for controlling the way pcretest operates.
The /+ modifier requests that as well as outputting the substring that The /+ modifier requests that as well as outputting the substring that
matched the entire pattern, pcretest should in addition output the matched the entire pattern, pcretest should in addition output the re-
remainder of the subject string. This is useful for tests where the mainder of the subject string. This is useful for tests where the sub-
subject contains multiple copies of the same substring. If the + modi- ject contains multiple copies of the same substring. If the + modifier
fier appears twice, the same action is taken for captured substrings. appears twice, the same action is taken for captured substrings. In
In each case the remainder is output on the following line with a plus each case the remainder is output on the following line with a plus
character following the capture number. Note that this modifier must character following the capture number. Note that this modifier must
not immediately follow the /S modifier because /S+ and /S++ have other not immediately follow the /S modifier because /S+ and /S++ have other
meanings. meanings.
The /= modifier requests that the values of all potential captured The /= modifier requests that the values of all potential captured
parentheses be output after a match. By default, only those up to the parentheses be output after a match. By default, only those up to the
highest one actually used in the match are output (corresponding to the highest one actually used in the match are output (corresponding to the
return code from pcre[16|32]_exec()). Values in the offsets vector cor- return code from pcre[16|32]_exec()). Values in the offsets vector cor-
responding to higher numbers should be set to -1, and these are output responding to higher numbers should be set to -1, and these are output
as "<unset>". This modifier gives a way of checking that this is hap- as "<unset>". This modifier gives a way of checking that this is hap-
pening. pening.
The /B modifier is a debugging feature. It requests that pcretest out- The /B modifier is a debugging feature. It requests that pcretest out-
put a representation of the compiled code after compilation. Normally put a representation of the compiled code after compilation. Normally
this information contains length and offset values; however, if /Z is this information contains length and offset values; however, if /Z is
also present, this data is replaced by spaces. This is a special fea- also present, this data is replaced by spaces. This is a special fea-
ture for use in the automatic test scripts; it ensures that the same ture for use in the automatic test scripts; it ensures that the same
output is generated for different internal link sizes. output is generated for different internal link sizes.
The /D modifier is a PCRE debugging feature, and is equivalent to /BI, The /D modifier is a PCRE debugging feature, and is equivalent to /BI,
that is, both the /B and the /I modifiers. that is, both the /B and the /I modifiers.
The /F modifier causes pcretest to flip the byte order of the 2-byte The /F modifier causes pcretest to flip the byte order of the 2-byte
and 4-byte fields in the compiled pattern. This facility is for testing and 4-byte fields in the compiled pattern. This facility is for testing
the feature in PCRE that allows it to execute patterns that were com- the feature in PCRE that allows it to execute patterns that were com-
piled on a host with a different endianness. This feature is not avail- piled on a host with a different endianness. This feature is not avail-
able when the POSIX interface to PCRE is being used, that is, when the able when the POSIX interface to PCRE is being used, that is, when the
/P pattern modifier is specified. See also the section about saving and /P pattern modifier is specified. See also the section about saving and
reloading compiled patterns below. reloading compiled patterns below.
The /I modifier requests that pcretest output information about the The /I modifier requests that pcretest output information about the
compiled pattern (whether it is anchored, has a fixed first character, compiled pattern (whether it is anchored, has a fixed first character,
and so on). It does this by calling pcre[16|32]_fullinfo() after com- and so on). It does this by calling pcre[16|32]_fullinfo() after com-
piling a pattern. If the pattern is studied, the results of that are piling a pattern. If the pattern is studied, the results of that are
also output. In this output, the word "char" means a non-UTF character, also output. In this output, the word "char" means a non-UTF character,
that is, the value of a single data item (8-bit, 16-bit, or 32-bit, that is, the value of a single data item (8-bit, 16-bit, or 32-bit, de-
depending on the library that is being tested). pending on the library that is being tested).
The /K modifier requests pcretest to show names from backtracking con- The /K modifier requests pcretest to show names from backtracking con-
trol verbs that are returned from calls to pcre[16|32]_exec(). It trol verbs that are returned from calls to pcre[16|32]_exec(). It
causes pcretest to create a pcre[16|32]_extra block if one has not causes pcretest to create a pcre[16|32]_extra block if one has not al-
already been created by a call to pcre[16|32]_study(), and to set the ready been created by a call to pcre[16|32]_study(), and to set the
PCRE_EXTRA_MARK flag and the mark field within it, every time that PCRE_EXTRA_MARK flag and the mark field within it, every time that
pcre[16|32]_exec() is called. If the variable that the mark field pcre[16|32]_exec() is called. If the variable that the mark field
points to is non-NULL for a match, non-match, or partial match, points to is non-NULL for a match, non-match, or partial match,
pcretest prints the string to which it points. For a match, this is pcretest prints the string to which it points. For a match, this is
shown on a line by itself, tagged with "MK:". For a non-match it is shown on a line by itself, tagged with "MK:". For a non-match it is
added to the message. added to the message.
The /L modifier must be followed directly by the name of a locale, for The /L modifier must be followed directly by the name of a locale, for
example, example,
/pattern/Lfr_FR /pattern/Lfr_FR
For this reason, it must be the last modifier. The given locale is set, For this reason, it must be the last modifier. The given locale is set,
pcre[16|32]_maketables() is called to build a set of character tables pcre[16|32]_maketables() is called to build a set of character tables
for the locale, and this is then passed to pcre[16|32]_compile() when for the locale, and this is then passed to pcre[16|32]_compile() when
compiling the regular expression. Without an /L (or /T) modifier, NULL compiling the regular expression. Without an /L (or /T) modifier, NULL
is passed as the tables pointer; that is, /L applies only to the is passed as the tables pointer; that is, /L applies only to the ex-
expression on which it appears. pression on which it appears.
The /M modifier causes the size in bytes of the memory block used to The /M modifier causes the size in bytes of the memory block used to
hold the compiled pattern to be output. This does not include the size hold the compiled pattern to be output. This does not include the size
of the pcre[16|32] block; it is just the actual compiled data. If the of the pcre[16|32] block; it is just the actual compiled data. If the
pattern is successfully studied with the PCRE_STUDY_JIT_COMPILE option, pattern is successfully studied with the PCRE_STUDY_JIT_COMPILE option,
the size of the JIT compiled code is also output. the size of the JIT compiled code is also output.
The /Q modifier is used to test the use of pcre_stack_guard. It must be The /Q modifier is used to test the use of pcre_stack_guard. It must be
followed by '0' or '1', specifying the return code to be given from an followed by '0' or '1', specifying the return code to be given from an
external function that is passed to PCRE and used for stack checking external function that is passed to PCRE and used for stack checking
during compilation (see the pcreapi documentation for details). during compilation (see the pcreapi documentation for details).
The /S modifier causes pcre[16|32]_study() to be called after the The /S modifier causes pcre[16|32]_study() to be called after the ex-
expression has been compiled, and the results used when the expression pression has been compiled, and the results used when the expression is
is matched. There are a number of qualifying characters that may follow matched. There are a number of qualifying characters that may follow
/S. They may appear in any order. /S. They may appear in any order.
If /S is followed by an exclamation mark, pcre[16|32]_study() is called If /S is followed by an exclamation mark, pcre[16|32]_study() is called
with the PCRE_STUDY_EXTRA_NEEDED option, causing it always to return a with the PCRE_STUDY_EXTRA_NEEDED option, causing it always to return a
pcre_extra block, even when studying discovers no useful information. pcre_extra block, even when studying discovers no useful information.
If /S is followed by a second S character, it suppresses studying, even If /S is followed by a second S character, it suppresses studying, even
if it was requested externally by the -s command line option. This if it was requested externally by the -s command line option. This
makes it possible to specify that certain patterns are always studied, makes it possible to specify that certain patterns are always studied,
and others are never studied, independently of -s. This feature is used and others are never studied, independently of -s. This feature is used
in the test files in a few cases where the output is different when the in the test files in a few cases where the output is different when the
pattern is studied. pattern is studied.
If the /S modifier is followed by a + character, the call to If the /S modifier is followed by a + character, the call to
pcre[16|32]_study() is made with all the JIT study options, requesting pcre[16|32]_study() is made with all the JIT study options, requesting
just-in-time optimization support if it is available, for both normal just-in-time optimization support if it is available, for both normal
and partial matching. If you want to restrict the JIT compiling modes, and partial matching. If you want to restrict the JIT compiling modes,
you can follow /S+ with a digit in the range 1 to 7: you can follow /S+ with a digit in the range 1 to 7:
1 normal match only 1 normal match only
...@@ -538,40 +535,40 @@ PATTERN MODIFIERS ...@@ -538,40 +535,40 @@ PATTERN MODIFIERS
7 all three modes (default) 7 all three modes (default)
If /S++ is used instead of /S+ (with or without a following digit), the If /S++ is used instead of /S+ (with or without a following digit), the
text "(JIT)" is added to the first output line after a match or no text "(JIT)" is added to the first output line after a match or no
match when JIT-compiled code was actually used. match when JIT-compiled code was actually used.
Note that there is also an independent /+ modifier; it must not be Note that there is also an independent /+ modifier; it must not be
given immediately after /S or /S+ because this will be misinterpreted. given immediately after /S or /S+ because this will be misinterpreted.
If JIT studying is successful, the compiled JIT code will automatically If JIT studying is successful, the compiled JIT code will automatically
be used when pcre[16|32]_exec() is run, except when incompatible run- be used when pcre[16|32]_exec() is run, except when incompatible run-
time options are specified. For more details, see the pcrejit documen- time options are specified. For more details, see the pcrejit documen-
tation. See also the \J escape sequence below for a way of setting the tation. See also the \J escape sequence below for a way of setting the
size of the JIT stack. size of the JIT stack.
Finally, if /S is followed by a minus character, JIT compilation is Finally, if /S is followed by a minus character, JIT compilation is
suppressed, even if it was requested externally by the -s command line suppressed, even if it was requested externally by the -s command line
option. This makes it possible to specify that JIT is never to be used option. This makes it possible to specify that JIT is never to be used
for certain patterns. for certain patterns.
The /T modifier must be followed by a single digit. It causes a spe- The /T modifier must be followed by a single digit. It causes a spe-
cific set of built-in character tables to be passed to pcre[16|32]_com- cific set of built-in character tables to be passed to pcre[16|32]_com-
pile(). It is used in the standard PCRE tests to check behaviour with pile(). It is used in the standard PCRE tests to check behaviour with
different character tables. The digit specifies the tables as follows: different character tables. The digit specifies the tables as follows:
0 the default ASCII tables, as distributed in 0 the default ASCII tables, as distributed in
pcre_chartables.c.dist pcre_chartables.c.dist
1 a set of tables defining ISO 8859 characters 1 a set of tables defining ISO 8859 characters
In table 1, some characters whose codes are greater than 128 are iden- In table 1, some characters whose codes are greater than 128 are iden-
tified as letters, digits, spaces, etc. tified as letters, digits, spaces, etc.
Using the POSIX wrapper API Using the POSIX wrapper API
The /P modifier causes pcretest to call PCRE via the POSIX wrapper API The /P modifier causes pcretest to call PCRE via the POSIX wrapper API
rather than its native API. This supports only the 8-bit library. When rather than its native API. This supports only the 8-bit library. When
/P is set, the following modifiers set options for the regcomp() func- /P is set, the following modifiers set options for the regcomp() func-
tion: tion:
/i REG_ICASE /i REG_ICASE
...@@ -582,48 +579,48 @@ PATTERN MODIFIERS ...@@ -582,48 +579,48 @@ PATTERN MODIFIERS
/W REG_UCP ) the POSIX standard /W REG_UCP ) the POSIX standard
/8 REG_UTF8 ) /8 REG_UTF8 )
The /+ modifier works as described above. All other modifiers are The /+ modifier works as described above. All other modifiers are ig-
ignored. nored.
Locking out certain modifiers Locking out certain modifiers
PCRE can be compiled with or without support for certain features such PCRE can be compiled with or without support for certain features such
as UTF-8/16/32 or Unicode properties. Accordingly, the standard tests as UTF-8/16/32 or Unicode properties. Accordingly, the standard tests
are split up into a number of different files that are selected for are split up into a number of different files that are selected for
running depending on which features are available. When updating the running depending on which features are available. When updating the
tests, it is all too easy to put a new test into the wrong file by mis- tests, it is all too easy to put a new test into the wrong file by mis-
take; for example, to put a test that requires UTF support into a file take; for example, to put a test that requires UTF support into a file
that is used when it is not available. To help detect such mistakes as that is used when it is not available. To help detect such mistakes as
early as possible, there is a facility for locking out specific modi- early as possible, there is a facility for locking out specific modi-
fiers. If an input line for pcretest starts with the string "< forbid " fiers. If an input line for pcretest starts with the string "< forbid "
the following sequence of characters is taken as a list of forbidden the following sequence of characters is taken as a list of forbidden
modifiers. For example, in the test files that must not use UTF or Uni- modifiers. For example, in the test files that must not use UTF or Uni-
code property support, this line appears: code property support, this line appears:
< forbid 8W < forbid 8W
This locks out the /8 and /W modifiers. An immediate error is given if This locks out the /8 and /W modifiers. An immediate error is given if
they are subsequently encountered. If the character string contains < they are subsequently encountered. If the character string contains <
but not >, all the multi-character modifiers that begin with < are but not >, all the multi-character modifiers that begin with < are
locked out. Otherwise, such modifiers must be explicitly listed, for locked out. Otherwise, such modifiers must be explicitly listed, for
example: example:
< forbid <JS><cr> < forbid <JS><cr>
There must be a single space between < and "forbid" for this feature to There must be a single space between < and "forbid" for this feature to
be recognised. If there is not, the line is interpreted either as a be recognised. If there is not, the line is interpreted either as a re-
request to re-load a pre-compiled pattern (see "SAVING AND RELOADING quest to re-load a pre-compiled pattern (see "SAVING AND RELOADING COM-
COMPILED PATTERNS" below) or, if there is a another < character, as a PILED PATTERNS" below) or, if there is a another < character, as a pat-
pattern that uses < as its delimiter. tern that uses < as its delimiter.
DATA LINES DATA LINES
Before each data line is passed to pcre[16|32]_exec(), leading and Before each data line is passed to pcre[16|32]_exec(), leading and
trailing white space is removed, and it is then scanned for \ escapes. trailing white space is removed, and it is then scanned for \ escapes.
Some of these are pretty esoteric features, intended for checking out Some of these are pretty esoteric features, intended for checking out
some of the more complicated features of PCRE. If you are just testing some of the more complicated features of PCRE. If you are just testing
"ordinary" regular expressions, you probably don't need any of these. "ordinary" regular expressions, you probably don't need any of these.
The following escapes are recognized: The following escapes are recognized:
\a alarm (BEL, \x07) \a alarm (BEL, \x07)
...@@ -684,7 +681,7 @@ DATA LINES ...@@ -684,7 +681,7 @@ DATA LINES
(any number of digits) (any number of digits)
\R pass the PCRE_DFA_RESTART option to pcre[16|32]_dfa_exec() \R pass the PCRE_DFA_RESTART option to pcre[16|32]_dfa_exec()
\S output details of memory get/free calls during matching \S output details of memory get/free calls during matching
\Y pass the PCRE_NO_START_OPTIMIZE option to \Y pass the PCRE_NO_START_OPTIMIZE option to
pcre[16|32]_exec() pcre[16|32]_exec()
or pcre[16|32]_dfa_exec() or pcre[16|32]_dfa_exec()
\Z pass the PCRE_NOTEOL option to pcre[16|32]_exec() \Z pass the PCRE_NOTEOL option to pcre[16|32]_exec()
...@@ -693,7 +690,7 @@ DATA LINES ...@@ -693,7 +690,7 @@ DATA LINES
pcre[16|32]_exec() or pcre[16|32]_dfa_exec() pcre[16|32]_exec() or pcre[16|32]_dfa_exec()
\>dd start the match at offset dd (optional "-"; then \>dd start the match at offset dd (optional "-"; then
any number of digits); this sets the startoffset any number of digits); this sets the startoffset
argument for pcre[16|32]_exec() or argument for pcre[16|32]_exec() or
pcre[16|32]_dfa_exec() pcre[16|32]_dfa_exec()
\<cr> pass the PCRE_NEWLINE_CR option to pcre[16|32]_exec() \<cr> pass the PCRE_NEWLINE_CR option to pcre[16|32]_exec()
or pcre[16|32]_dfa_exec() or pcre[16|32]_dfa_exec()
...@@ -706,103 +703,102 @@ DATA LINES ...@@ -706,103 +703,102 @@ DATA LINES
\<any> pass the PCRE_NEWLINE_ANY option to pcre[16|32]_exec() \<any> pass the PCRE_NEWLINE_ANY option to pcre[16|32]_exec()
or pcre[16|32]_dfa_exec() or pcre[16|32]_dfa_exec()
The use of \x{hh...} is not dependent on the use of the /8 modifier on The use of \x{hh...} is not dependent on the use of the /8 modifier on
the pattern. It is recognized always. There may be any number of hexa- the pattern. It is recognized always. There may be any number of hexa-
decimal digits inside the braces; invalid values provoke error mes- decimal digits inside the braces; invalid values provoke error mes-
sages. sages.
Note that \xhh specifies one byte rather than one character in UTF-8 Note that \xhh specifies one byte rather than one character in UTF-8
mode; this makes it possible to construct invalid UTF-8 sequences for mode; this makes it possible to construct invalid UTF-8 sequences for
testing purposes. On the other hand, \x{hh} is interpreted as a UTF-8 testing purposes. On the other hand, \x{hh} is interpreted as a UTF-8
character in UTF-8 mode, generating more than one byte if the value is character in UTF-8 mode, generating more than one byte if the value is
greater than 127. When testing the 8-bit library not in UTF-8 mode, greater than 127. When testing the 8-bit library not in UTF-8 mode,
\x{hh} generates one byte for values less than 256, and causes an error \x{hh} generates one byte for values less than 256, and causes an error
for greater values. for greater values.
In UTF-16 mode, all 4-digit \x{hhhh} values are accepted. This makes it In UTF-16 mode, all 4-digit \x{hhhh} values are accepted. This makes it
possible to construct invalid UTF-16 sequences for testing purposes. possible to construct invalid UTF-16 sequences for testing purposes.
In UTF-32 mode, all 4- to 8-digit \x{...} values are accepted. This In UTF-32 mode, all 4- to 8-digit \x{...} values are accepted. This
makes it possible to construct invalid UTF-32 sequences for testing makes it possible to construct invalid UTF-32 sequences for testing
purposes. purposes.
The escapes that specify line ending sequences are literal strings, The escapes that specify line ending sequences are literal strings, ex-
exactly as shown. No more than one newline setting should be present in actly as shown. No more than one newline setting should be present in
any data line. any data line.
A backslash followed by anything else just escapes the anything else. A backslash followed by anything else just escapes the anything else.
If the very last character is a backslash, it is ignored. This gives a If the very last character is a backslash, it is ignored. This gives a
way of passing an empty line as data, since a real empty line termi- way of passing an empty line as data, since a real empty line termi-
nates the data input. nates the data input.
The \J escape provides a way of setting the maximum stack size that is The \J escape provides a way of setting the maximum stack size that is
used by the just-in-time optimization code. It is ignored if JIT opti- used by the just-in-time optimization code. It is ignored if JIT opti-
mization is not being used. Providing a stack that is larger than the mization is not being used. Providing a stack that is larger than the
default 32K is necessary only for very complicated patterns. default 32K is necessary only for very complicated patterns.
If \M is present, pcretest calls pcre[16|32]_exec() several times, with If \M is present, pcretest calls pcre[16|32]_exec() several times, with
different values in the match_limit and match_limit_recursion fields of different values in the match_limit and match_limit_recursion fields of
the pcre[16|32]_extra data structure, until it finds the minimum num- the pcre[16|32]_extra data structure, until it finds the minimum num-
bers for each parameter that allow pcre[16|32]_exec() to complete with- bers for each parameter that allow pcre[16|32]_exec() to complete with-
out error. Because this is testing a specific feature of the normal out error. Because this is testing a specific feature of the normal in-
interpretive pcre[16|32]_exec() execution, the use of any JIT optimiza- terpretive pcre[16|32]_exec() execution, the use of any JIT optimiza-
tion that might have been set up by the /S+ qualifier of -s+ option is tion that might have been set up by the /S+ qualifier of -s+ option is
disabled. disabled.
The match_limit number is a measure of the amount of backtracking that The match_limit number is a measure of the amount of backtracking that
takes place, and checking it out can be instructive. For most simple takes place, and checking it out can be instructive. For most simple
matches, the number is quite small, but for patterns with very large matches, the number is quite small, but for patterns with very large
numbers of matching possibilities, it can become large very quickly numbers of matching possibilities, it can become large very quickly
with increasing length of subject string. The match_limit_recursion with increasing length of subject string. The match_limit_recursion
number is a measure of how much stack (or, if PCRE is compiled with number is a measure of how much stack (or, if PCRE is compiled with
NO_RECURSE, how much heap) memory is needed to complete the match NO_RECURSE, how much heap) memory is needed to complete the match at-
attempt. tempt.
When \O is used, the value specified may be higher or lower than the When \O is used, the value specified may be higher or lower than the
size set by the -O command line option (or defaulted to 45); \O applies size set by the -O command line option (or defaulted to 45); \O applies
only to the call of pcre[16|32]_exec() for the line in which it only to the call of pcre[16|32]_exec() for the line in which it ap-
appears. pears.
If the /P modifier was present on the pattern, causing the POSIX wrap- If the /P modifier was present on the pattern, causing the POSIX wrap-
per API to be used, the only option-setting sequences that have any per API to be used, the only option-setting sequences that have any ef-
effect are \B, \N, and \Z, causing REG_NOTBOL, REG_NOTEMPTY, and fect are \B, \N, and \Z, causing REG_NOTBOL, REG_NOTEMPTY, and REG_NO-
REG_NOTEOL, respectively, to be passed to regexec(). TEOL, respectively, to be passed to regexec().
THE ALTERNATIVE MATCHING FUNCTION THE ALTERNATIVE MATCHING FUNCTION
By default, pcretest uses the standard PCRE matching function, By default, pcretest uses the standard PCRE matching function,
pcre[16|32]_exec() to match each data line. PCRE also supports an pcre[16|32]_exec() to match each data line. PCRE also supports an al-
alternative matching function, pcre[16|32]_dfa_test(), which operates ternative matching function, pcre[16|32]_dfa_test(), which operates in
in a different way, and has some restrictions. The differences between a different way, and has some restrictions. The differences between the
the two functions are described in the pcrematching documentation. two functions are described in the pcrematching documentation.
If a data line contains the \D escape sequence, or if the command line If a data line contains the \D escape sequence, or if the command line
contains the -dfa option, the alternative matching function is used. contains the -dfa option, the alternative matching function is used.
This function finds all possible matches at a given point. If, however, This function finds all possible matches at a given point. If, however,
the \F escape sequence is present in the data line, it stops after the the \F escape sequence is present in the data line, it stops after the
first match is found. This is always the shortest possible match. first match is found. This is always the shortest possible match.
DEFAULT OUTPUT FROM PCRETEST DEFAULT OUTPUT FROM PCRETEST
This section describes the output when the normal matching function, This section describes the output when the normal matching function,
pcre[16|32]_exec(), is being used. pcre[16|32]_exec(), is being used.
When a match succeeds, pcretest outputs the list of captured substrings When a match succeeds, pcretest outputs the list of captured substrings
that pcre[16|32]_exec() returns, starting with number 0 for the string that pcre[16|32]_exec() returns, starting with number 0 for the string
that matched the whole pattern. Otherwise, it outputs "No match" when that matched the whole pattern. Otherwise, it outputs "No match" when
the return is PCRE_ERROR_NOMATCH, and "Partial match:" followed by the the return is PCRE_ERROR_NOMATCH, and "Partial match:" followed by the
partially matching substring when pcre[16|32]_exec() returns partially matching substring when pcre[16|32]_exec() returns PCRE_ER-
PCRE_ERROR_PARTIAL. (Note that this is the entire substring that was ROR_PARTIAL. (Note that this is the entire substring that was inspected
inspected during the partial match; it may include characters before during the partial match; it may include characters before the actual
the actual match start if a lookbehind assertion, \K, \b, or \B was match start if a lookbehind assertion, \K, \b, or \B was involved.) For
involved.) For any other return, pcretest outputs the PCRE negative any other return, pcretest outputs the PCRE negative error number and a
error number and a short descriptive phrase. If the error is a failed short descriptive phrase. If the error is a failed UTF string check,
UTF string check, the offset of the start of the failing character and the offset of the start of the failing character and the reason code
the reason code are also output, provided that the size of the output are also output, provided that the size of the output vector is at
vector is at least two. Here is an example of an interactive pcretest least two. Here is an example of an interactive pcretest run.
run.
$ pcretest $ pcretest
PCRE version 8.13 2011-04-30 PCRE version 8.13 2011-04-30
...@@ -892,9 +888,9 @@ OUTPUT FROM THE ALTERNATIVE MATCHING FUNCTION ...@@ -892,9 +888,9 @@ OUTPUT FROM THE ALTERNATIVE MATCHING FUNCTION
(Using the normal matching function on this data finds only "tang".) (Using the normal matching function on this data finds only "tang".)
The longest matching string is always given first (and numbered zero). The longest matching string is always given first (and numbered zero).
After a PCRE_ERROR_PARTIAL return, the output is "Partial match:", fol- After a PCRE_ERROR_PARTIAL return, the output is "Partial match:", fol-
lowed by the partially matching substring. (Note that this is the lowed by the partially matching substring. (Note that this is the en-
entire substring that was inspected during the partial match; it may tire substring that was inspected during the partial match; it may in-
include characters before the actual match start if a lookbehind asser- clude characters before the actual match start if a lookbehind asser-
tion, \K, \b, or \B was involved.) tion, \K, \b, or \B was involved.)
If /g is present on the pattern, the search for further matches resumes If /g is present on the pattern, the search for further matches resumes
...@@ -909,9 +905,9 @@ OUTPUT FROM THE ALTERNATIVE MATCHING FUNCTION ...@@ -909,9 +905,9 @@ OUTPUT FROM THE ALTERNATIVE MATCHING FUNCTION
1: tan 1: tan
0: tan 0: tan
Since the matching function does not support substring capture, the Since the matching function does not support substring capture, the es-
escape sequences that are concerned with captured substrings are not cape sequences that are concerned with captured substrings are not rel-
relevant. evant.
RESTARTING AFTER A PARTIAL MATCH RESTARTING AFTER A PARTIAL MATCH
...@@ -942,9 +938,9 @@ CALLOUTS ...@@ -942,9 +938,9 @@ CALLOUTS
--->pqrabcdef --->pqrabcdef
0 ^ ^ \d 0 ^ ^ \d
This output indicates that callout number 0 occurred for a match This output indicates that callout number 0 occurred for a match at-
attempt starting at the fourth character of the subject string, when tempt starting at the fourth character of the subject string, when the
the pointer was at the seventh character of the data, and when the next pointer was at the seventh character of the data, and when the next
pattern item was \d. Just one circumflex is output if the start and pattern item was \d. Just one circumflex is output if the start and
current positions are the same. current positions are the same.
...@@ -963,8 +959,8 @@ CALLOUTS ...@@ -963,8 +959,8 @@ CALLOUTS
0: E* 0: E*
If a pattern contains (*MARK) items, an additional line is output when- If a pattern contains (*MARK) items, an additional line is output when-
ever a change of latest mark is passed to the callout function. For ever a change of latest mark is passed to the callout function. For ex-
example: ample:
re> /a(*MARK:X)bc/C re> /a(*MARK:X)bc/C
data> abc data> abc
...@@ -999,8 +995,8 @@ NON-PRINTING CHARACTERS ...@@ -999,8 +995,8 @@ NON-PRINTING CHARACTERS
When pcretest is outputting text that is a matched part of a subject When pcretest is outputting text that is a matched part of a subject
string, it behaves in the same way, unless a different locale has been string, it behaves in the same way, unless a different locale has been
set for the pattern (using the /L modifier). In this case, the set for the pattern (using the /L modifier). In this case, the is-
isprint() function to distinguish printing and non-printing characters. print() function to distinguish printing and non-printing characters.
SAVING AND RELOADING COMPILED PATTERNS SAVING AND RELOADING COMPILED PATTERNS
...@@ -1020,14 +1016,14 @@ SAVING AND RELOADING COMPILED PATTERNS ...@@ -1020,14 +1016,14 @@ SAVING AND RELOADING COMPILED PATTERNS
studied with JIT optimization, the JIT data cannot be saved. studied with JIT optimization, the JIT data cannot be saved.
The data that is written is binary. The first eight bytes are the The data that is written is binary. The first eight bytes are the
length of the compiled pattern data followed by the length of the length of the compiled pattern data followed by the length of the op-
optional study data, each written as four bytes in big-endian order tional study data, each written as four bytes in big-endian order (most
(most significant byte first). If there is no study data (either the significant byte first). If there is no study data (either the pattern
pattern was not studied, or studying did not return any data), the sec- was not studied, or studying did not return any data), the second
ond length is zero. The lengths are followed by an exact copy of the length is zero. The lengths are followed by an exact copy of the com-
compiled pattern. If there is additional study data, this (excluding piled pattern. If there is additional study data, this (excluding any
any JIT data) follows immediately after the compiled pattern. After JIT data) follows immediately after the compiled pattern. After writing
writing the file, pcretest expects to read a new pattern. the file, pcretest expects to read a new pattern.
A saved pattern can be reloaded into pcretest by specifying < and a A saved pattern can be reloaded into pcretest by specifying < and a
file name instead of a pattern. There must be no space between < and file name instead of a pattern. There must be no space between < and
...@@ -1066,10 +1062,10 @@ SAVING AND RELOADING COMPILED PATTERNS ...@@ -1066,10 +1062,10 @@ SAVING AND RELOADING COMPILED PATTERNS
ing and experimentation. It is not intended for production use because ing and experimentation. It is not intended for production use because
only a single pattern can be written to a file. Furthermore, there is only a single pattern can be written to a file. Furthermore, there is
no facility for supplying custom character tables for use with a no facility for supplying custom character tables for use with a
reloaded pattern. If the original pattern was compiled with custom reloaded pattern. If the original pattern was compiled with custom ta-
tables, an attempt to match a subject string using a reloaded pattern bles, an attempt to match a subject string using a reloaded pattern is
is likely to cause pcretest to crash. Finally, if you attempt to load likely to cause pcretest to crash. Finally, if you attempt to load a
a file that is not in the correct format, the result is undefined. file that is not in the correct format, the result is undefined.
SEE ALSO SEE ALSO
...@@ -1087,5 +1083,5 @@ AUTHOR ...@@ -1087,5 +1083,5 @@ AUTHOR
REVISION REVISION
Last updated: 23 February 2017 Last updated: 10 February 2020
Copyright (c) 1997-2017 University of Cambridge. Copyright (c) 1997-2020 University of Cambridge.
pcre/pcre_compile.c
View file @ d233fd14
...@@ -6,7 +6,7 @@ ...@@ -6,7 +6,7 @@
and semantics are as close as possible to those of the Perl 5 language. and semantics are as close as possible to those of the Perl 5 language.
Written by Philip Hazel Written by Philip Hazel
Copyright (c) 1997-2018 University of Cambridge Copyright (c) 1997-2020 University of Cambridge
----------------------------------------------------------------------------- -----------------------------------------------------------------------------
Redistribution and use in source and binary forms, with or without Redistribution and use in source and binary forms, with or without
...@@ -68,7 +68,7 @@ COMPILE_PCREx macro will already be appropriately set. */ ...@@ -68,7 +68,7 @@ COMPILE_PCREx macro will already be appropriately set. */
/* Macro for setting individual bits in class bitmaps. */ /* Macro for setting individual bits in class bitmaps. */
#define SETBIT(a,b) a[(b)/8] |= (1 << ((b)&7)) #define SETBIT(a,b) a[(b)/8] |= (1U << ((b)&7))
/* Maximum length value to check against when making sure that the integer that /* Maximum length value to check against when making sure that the integer that
holds the compiled pattern length does not overflow. We make it a bit less than holds the compiled pattern length does not overflow. We make it a bit less than
...@@ -129,8 +129,8 @@ overrun before it actually does run off the end of the data block. */ ...@@ -129,8 +129,8 @@ overrun before it actually does run off the end of the data block. */
/* Private flags added to firstchar and reqchar. */ /* Private flags added to firstchar and reqchar. */
#define REQ_CASELESS (1 << 0) /* Indicates caselessness */ #define REQ_CASELESS (1U << 0) /* Indicates caselessness */
#define REQ_VARY (1 << 1) /* Reqchar followed non-literal item */ #define REQ_VARY (1U << 1) /* Reqchar followed non-literal item */
/* Negative values for the firstchar and reqchar flags */ /* Negative values for the firstchar and reqchar flags */
#define REQ_UNSET (-2) #define REQ_UNSET (-2)
#define REQ_NONE (-1) #define REQ_NONE (-1)
...@@ -3612,7 +3612,7 @@ for(;;) ...@@ -3612,7 +3612,7 @@ for(;;)
if (chr > 255) break; if (chr > 255) break;
class_bitset = (pcre_uint8 *) class_bitset = (pcre_uint8 *)
((list_ptr == list ? code : base_end) - list_ptr[2]); ((list_ptr == list ? code : base_end) - list_ptr[2]);
if ((class_bitset[chr >> 3] & (1 << (chr & 7))) != 0) return FALSE; if ((class_bitset[chr >> 3] & (1U << (chr & 7))) != 0) return FALSE;
break; break;
#if defined SUPPORT_UTF || !defined COMPILE_PCRE8 #if defined SUPPORT_UTF || !defined COMPILE_PCRE8
...@@ -7133,17 +7133,19 @@ for (;; ptr++) ...@@ -7133,17 +7133,19 @@ for (;; ptr++)
int n = 0; int n = 0;
ptr++; ptr++;
while(IS_DIGIT(*ptr)) while(IS_DIGIT(*ptr))
{
n = n * 10 + *ptr++ - CHAR_0; n = n * 10 + *ptr++ - CHAR_0;
if (n > 255)
{
*errorcodeptr = ERR38;
goto FAILED;
}
}
if (*ptr != CHAR_RIGHT_PARENTHESIS) if (*ptr != CHAR_RIGHT_PARENTHESIS)
{ {
*errorcodeptr = ERR39; *errorcodeptr = ERR39;
goto FAILED; goto FAILED;
} }
if (n > 255)
{
*errorcodeptr = ERR38;
goto FAILED;
}
*code++ = n; *code++ = n;
PUT(code, 0, (int)(ptr - cd->start_pattern + 1)); /* Pattern offset */ PUT(code, 0, (int)(ptr - cd->start_pattern + 1)); /* Pattern offset */
PUT(code, LINK_SIZE, 0); /* Default length */ PUT(code, LINK_SIZE, 0); /* Default length */
...@@ -7459,7 +7461,7 @@ for (;; ptr++) ...@@ -7459,7 +7461,7 @@ for (;; ptr++)
{ {
open_capitem *oc; open_capitem *oc;
recno = GET2(slot, 0); recno = GET2(slot, 0);
cd->backref_map |= (recno < 32)? (1 << recno) : 1; cd->backref_map |= (recno < 32)? (1U << recno) : 1;
if (recno > cd->top_backref) cd->top_backref = recno; if (recno > cd->top_backref) cd->top_backref = recno;
/* Check to see if this back reference is recursive, that it, it /* Check to see if this back reference is recursive, that it, it
...@@ -8070,7 +8072,7 @@ for (;; ptr++) ...@@ -8070,7 +8072,7 @@ for (;; ptr++)
item_hwm_offset = cd->hwm - cd->start_workspace; item_hwm_offset = cd->hwm - cd->start_workspace;
*code++ = ((options & PCRE_CASELESS) != 0)? OP_REFI : OP_REF; *code++ = ((options & PCRE_CASELESS) != 0)? OP_REFI : OP_REF;
PUT2INC(code, 0, recno); PUT2INC(code, 0, recno);
cd->backref_map |= (recno < 32)? (1 << recno) : 1; cd->backref_map |= (recno < 32)? (1U << recno) : 1;
if (recno > cd->top_backref) cd->top_backref = recno; if (recno > cd->top_backref) cd->top_backref = recno;
/* Check to see if this back reference is recursive, that it, it /* Check to see if this back reference is recursive, that it, it
...@@ -8683,7 +8685,7 @@ do { ...@@ -8683,7 +8685,7 @@ do {
op == OP_SCBRA || op == OP_SCBRAPOS) op == OP_SCBRA || op == OP_SCBRAPOS)
{ {
int n = GET2(scode, 1+LINK_SIZE); int n = GET2(scode, 1+LINK_SIZE);
int new_map = bracket_map | ((n < 32)? (1 << n) : 1); int new_map = bracket_map | ((n < 32)? (1U << n) : 1);
if (!is_anchored(scode, new_map, cd, atomcount)) return FALSE; if (!is_anchored(scode, new_map, cd, atomcount)) return FALSE;
} }
...@@ -8811,7 +8813,7 @@ do { ...@@ -8811,7 +8813,7 @@ do {
op == OP_SCBRA || op == OP_SCBRAPOS) op == OP_SCBRA || op == OP_SCBRAPOS)
{ {
int n = GET2(scode, 1+LINK_SIZE); int n = GET2(scode, 1+LINK_SIZE);
int new_map = bracket_map | ((n < 32)? (1 << n) : 1); int new_map = bracket_map | ((n < 32)? (1U << n) : 1);
if (!is_startline(scode, new_map, cd, atomcount, inassert)) return FALSE; if (!is_startline(scode, new_map, cd, atomcount, inassert)) return FALSE;
} }
......
pcre/pcre_jit_compile.c
View file @ d233fd14
...@@ -3938,10 +3938,10 @@ static sljit_s32 character_to_int32(pcre_uchar chr) ...@@ -3938,10 +3938,10 @@ static sljit_s32 character_to_int32(pcre_uchar chr)
sljit_s32 value = (sljit_s32)chr; sljit_s32 value = (sljit_s32)chr;
#if defined COMPILE_PCRE8 #if defined COMPILE_PCRE8
#define SSE2_COMPARE_TYPE_INDEX 0 #define SSE2_COMPARE_TYPE_INDEX 0
return (value << 24) | (value << 16) | (value << 8) | value; return ((unsigned int)value << 24) | ((unsigned int)value << 16) | ((unsigned int)value << 8) | (unsigned int)value;
#elif defined COMPILE_PCRE16 #elif defined COMPILE_PCRE16
#define SSE2_COMPARE_TYPE_INDEX 1 #define SSE2_COMPARE_TYPE_INDEX 1
return (value << 16) | value; return ((unsigned int)value << 16) | value;
#elif defined COMPILE_PCRE32 #elif defined COMPILE_PCRE32
#define SSE2_COMPARE_TYPE_INDEX 2 #define SSE2_COMPARE_TYPE_INDEX 2
return value; return value;
...@@ -8507,7 +8507,7 @@ if (opcode == OP_ONCE) ...@@ -8507,7 +8507,7 @@ if (opcode == OP_ONCE)
/* We temporarily encode the needs_control_head in the lowest bit. /* We temporarily encode the needs_control_head in the lowest bit.
Note: on the target architectures of SLJIT the ((x << 1) >> 1) returns Note: on the target architectures of SLJIT the ((x << 1) >> 1) returns
the same value for small signed numbers (including negative numbers). */ the same value for small signed numbers (including negative numbers). */
BACKTRACK_AS(bracket_backtrack)->u.framesize = (BACKTRACK_AS(bracket_backtrack)->u.framesize << 1) | (needs_control_head ? 1 : 0); BACKTRACK_AS(bracket_backtrack)->u.framesize = ((unsigned int)BACKTRACK_AS(bracket_backtrack)->u.framesize << 1) | (needs_control_head ? 1 : 0);
} }
return cc + repeat_length; return cc + repeat_length;
} }
......
pcre/pcrecpp.cc
View file @ d233fd14
...@@ -66,7 +66,8 @@ Arg RE::no_arg((void*)NULL); ...@@ -66,7 +66,8 @@ Arg RE::no_arg((void*)NULL);
// inclusive test if we ever needed it. (Note that not only the // inclusive test if we ever needed it. (Note that not only the
// __attribute__ syntax, but also __USER_LABEL_PREFIX__, are // __attribute__ syntax, but also __USER_LABEL_PREFIX__, are
// gnu-specific.) // gnu-specific.)
#if defined(__GNUC__) && __GNUC__ >= 3 && defined(__ELF__) && !defined(__INTEL_COMPILER) #if defined(__GNUC__) && __GNUC__ >= 3 && defined(__ELF__) \
&& !defined(__INTEL_COMPILER) && !defined(__LCC__)
# define ULP_AS_STRING(x) ULP_AS_STRING_INTERNAL(x) # define ULP_AS_STRING(x) ULP_AS_STRING_INTERNAL(x)
# define ULP_AS_STRING_INTERNAL(x) #x # define ULP_AS_STRING_INTERNAL(x) #x
# define USER_LABEL_PREFIX_STR ULP_AS_STRING(__USER_LABEL_PREFIX__) # define USER_LABEL_PREFIX_STR ULP_AS_STRING(__USER_LABEL_PREFIX__)
...@@ -91,6 +92,7 @@ static const char *start_options[] = { ...@@ -91,6 +92,7 @@ static const char *start_options[] = {
"(*LIMIT_RECURSION=", "(*LIMIT_RECURSION=",
"(*LIMIT_MATCH=", "(*LIMIT_MATCH=",
"(*CRLF)", "(*CRLF)",
"(*LF)",
"(*CR)", "(*CR)",
"(*BSR_UNICODE)", "(*BSR_UNICODE)",
"(*BSR_ANYCRLF)", "(*BSR_ANYCRLF)",
......
pcre/pcreposix.c
View file @ d233fd14
...@@ -6,7 +6,7 @@ ...@@ -6,7 +6,7 @@
and semantics are as close as possible to those of the Perl 5 language. and semantics are as close as possible to those of the Perl 5 language.
Written by Philip Hazel Written by Philip Hazel
Copyright (c) 1997-2018 University of Cambridge Copyright (c) 1997-2020 University of Cambridge
----------------------------------------------------------------------------- -----------------------------------------------------------------------------
Redistribution and use in source and binary forms, with or without Redistribution and use in source and binary forms, with or without
...@@ -298,6 +298,7 @@ if (preg->re_pcre == NULL) ...@@ -298,6 +298,7 @@ if (preg->re_pcre == NULL)
(void)pcre_fullinfo((const pcre *)preg->re_pcre, NULL, PCRE_INFO_CAPTURECOUNT, (void)pcre_fullinfo((const pcre *)preg->re_pcre, NULL, PCRE_INFO_CAPTURECOUNT,
&re_nsub); &re_nsub);
preg->re_nsub = (size_t)re_nsub; preg->re_nsub = (size_t)re_nsub;
preg->re_erroffset = (size_t)(-1); /* No meaning after successful compile */
return 0; return 0;
} }
...@@ -335,8 +336,6 @@ if ((eflags & REG_NOTBOL) != 0) options |= PCRE_NOTBOL; ...@@ -335,8 +336,6 @@ if ((eflags & REG_NOTBOL) != 0) options |= PCRE_NOTBOL;
if ((eflags & REG_NOTEOL) != 0) options |= PCRE_NOTEOL; if ((eflags & REG_NOTEOL) != 0) options |= PCRE_NOTEOL;
if ((eflags & REG_NOTEMPTY) != 0) options |= PCRE_NOTEMPTY; if ((eflags & REG_NOTEMPTY) != 0) options |= PCRE_NOTEMPTY;
((regex_t *)preg)->re_erroffset = (size_t)(-1); /* Only has meaning after compile */
/* When no string data is being returned, or no vector has been passed in which /* When no string data is being returned, or no vector has been passed in which
to put it, ensure that nmatch is zero. Otherwise, ensure the vector for holding to put it, ensure that nmatch is zero. Otherwise, ensure the vector for holding
the return data is large enough. */ the return data is large enough. */
......
pcre/pcretest.c
View file @ d233fd14
...@@ -500,7 +500,7 @@ enum { ...@@ -500,7 +500,7 @@ enum {
#if (defined (SUPPORT_PCRE8) + defined (SUPPORT_PCRE16) + \ #if (defined (SUPPORT_PCRE8) + defined (SUPPORT_PCRE16) + \
defined (SUPPORT_PCRE32)) >= 2 defined (SUPPORT_PCRE32)) >= 2
#define CHAR_SIZE (1 << pcre_mode) #define CHAR_SIZE (1U << pcre_mode)
/* There doesn't seem to be an easy way of writing these macros that can cope /* There doesn't seem to be an easy way of writing these macros that can cope
with the 3 pairs of bit sizes plus all three bit sizes. So just handle all the with the 3 pairs of bit sizes plus all three bit sizes. So just handle all the
...@@ -4443,7 +4443,7 @@ while (!done) ...@@ -4443,7 +4443,7 @@ while (!done)
/* If there is study data, write it. */ /* If there is study data, write it. */
if (extra != NULL) if (extra != NULL && (extra->flags & PCRE_EXTRA_STUDY_DATA) != 0)
{ {
if (fwrite(extra->study_data, 1, true_study_size, f) < if (fwrite(extra->study_data, 1, true_study_size, f) <
true_study_size) true_study_size)
...@@ -4735,7 +4735,7 @@ while (!done) ...@@ -4735,7 +4735,7 @@ while (!done)
if (isdigit(*p)) /* Set copy string */ if (isdigit(*p)) /* Set copy string */
{ {
while(isdigit(*p)) n = n * 10 + *p++ - '0'; while(isdigit(*p)) n = n * 10 + *p++ - '0';
copystrings |= 1 << n; copystrings |= 1U << n;
} }
else if (isalnum(*p)) else if (isalnum(*p))
{ {
...@@ -4798,7 +4798,7 @@ while (!done) ...@@ -4798,7 +4798,7 @@ while (!done)
if (isdigit(*p)) if (isdigit(*p))
{ {
while(isdigit(*p)) n = n * 10 + *p++ - '0'; while(isdigit(*p)) n = n * 10 + *p++ - '0';
getstrings |= 1 << n; getstrings |= 1U << n;
} }
else if (isalnum(*p)) else if (isalnum(*p))
{ {
...@@ -5335,7 +5335,7 @@ while (!done) ...@@ -5335,7 +5335,7 @@ while (!done)
for (i = 0; i < 32; i++) for (i = 0; i < 32; i++)
{ {
if ((copystrings & (1 << i)) != 0) if ((copystrings & (1U << i)) != 0)
{ {
int rc; int rc;
char copybuffer[256]; char copybuffer[256];
...@@ -5400,7 +5400,7 @@ while (!done) ...@@ -5400,7 +5400,7 @@ while (!done)
for (i = 0; i < 32; i++) for (i = 0; i < 32; i++)
{ {
if ((getstrings & (1 << i)) != 0) if ((getstrings & (1U << i)) != 0)
{ {
int rc; int rc;
const char *substring; const char *substring;
......
pcre/testdata/testinput2
View file @ d233fd14
...@@ -1380,7 +1380,7 @@ ...@@ -1380,7 +1380,7 @@
1X 1X
123456\P 123456\P
//KF>testsavedregex //S-KF>testsavedregex
/abc/IS>testsavedregex /abc/IS>testsavedregex
<testsavedregex <testsavedregex
......
pcre/testdata/testoutput2
View file @ d233fd14
...@@ -5614,9 +5614,8 @@ No match ...@@ -5614,9 +5614,8 @@ No match
123456\P 123456\P
No match No match
//KF>testsavedregex //S-KF>testsavedregex
Compiled pattern written to testsavedregex Compiled pattern written to testsavedregex
Study data written to testsavedregex
/abc/IS>testsavedregex /abc/IS>testsavedregex
Capturing subpattern count = 0 Capturing subpattern count = 0
......
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