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PCRETEST(1) PCRETEST(1)	PCRETEST(1) General Commands Manual PCRETEST(1)



NAME	NAME
pcretest - a program for testing Perl-compatible regular expressions.	pcretest - a program for testing Perl-compatible regular expressions.


SYNOPSIS	SYNOPSIS

pcretest [options] [input file [output file]]	pcretest [options] [input file [output file]]
Line 14 SYNOPSIS	Line 14 SYNOPSIS
expressions. This document describes the features of the test program;	expressions. This document describes the features of the test program;
for details of the regular expressions themselves, see the pcrepattern	for details of the regular expressions themselves, see the pcrepattern
documentation. For details of the PCRE library function calls and their	documentation. For details of the PCRE library function calls and their
options, see the pcreapi and pcre16 documentation. The input for	options, see the pcreapi , pcre16 and pcre32 documentation.
pcretest is a sequence of regular expression patterns and strings to be
matched, as described below. The output shows the result of each match.
Options on the command line and the patterns control PCRE options and
exactly what is output.

	The input for pcretest is a sequence of regular expression patterns and
	strings to be matched, as described below. The output shows the result
	of each match. Options on the command line and the patterns control
	PCRE options and exactly what is output.

PCRE's 8-BIT and 16-BIT LIBRARIES	As PCRE has evolved, it has acquired many different features, and as a
	result, pcretest now has rather a lot of obscure options for testing
	every possible feature. Some of these options are specifically designed
	for use in conjunction with the test script and data files that are
	distributed as part of PCRE, and are unlikely to be of use otherwise.
	They are all documented here, but without much justification.


	INPUT DATA FORMAT

	Input to pcretest is processed line by line, either by calling the C
	library's fgets() function, or via the libreadline library (see below).
	In Unix-like environments, fgets() treats any bytes other than newline
	as data characters. However, in some Windows environments character 26
	(hex 1A) causes an immediate end of file, and no further data is read.
	For maximum portability, therefore, it is safest to use only ASCII
	characters in pcretest input files.


	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
library supports character strings encoded in 16-bit units. The	library supports character strings encoded in 16-bit units. From
pcretest program can be used to test both libraries. However, it is	release 8.32, a third library can be built, supporting character
itself still an 8-bit program, reading 8-bit input and writing 8-bit	strings encoded in 32-bit units. The pcretest program can be used to
output. When testing the 16-bit library, the patterns and data strings	test all three libraries. However, it is itself still an 8-bit program,
are converted to 16-bit format before being passed to the PCRE library	reading 8-bit input and writing 8-bit output. When testing the 16-bit
functions. Results are converted to 8-bit for output.	or 32-bit library, the patterns and data strings are converted to 16-
	or 32-bit format before being passed to the PCRE library functions.
	Results are converted to 8-bit for output.

References to functions and structures of the form pcre[16]_xx below	References to functions and structures of the form pcre[16\|32]_xx below
mean "pcre_xx when using the 8-bit library or pcre16_xx when using the	mean "pcre_xx when using the 8-bit library, pcre16_xx when using the
16-bit library".	16-bit library, or pcre32_xx when using the 32-bit library".


COMMAND LINE OPTIONS	COMMAND LINE OPTIONS

-16 If both the 8-bit and the 16-bit libraries have been built,	-8 If both the 8-bit library has been built, this option causes
this option causes the 16-bit library to be used. If only the	the 8-bit library to be used (which is the default); if the
16-bit library has been built, this is the default (so has no	8-bit library has not been built, this option causes an
effect). If only the 8-bit library has been built, this	error.
option causes an error.

-b Behave as if each pattern has the /B (show byte code) modi-	-16 If both the 8-bit or the 32-bit, and the 16-bit libraries
	have been built, this option causes the 16-bit library to be
	used. If only the 16-bit library has been built, this is the
	default (so has no effect). If only the 8-bit or the 32-bit
	library has been built, this option causes an error.

	-32 If both the 8-bit or the 16-bit, and the 32-bit libraries
	have been built, this option causes the 32-bit library to be
	used. If only the 32-bit library has been built, this is the
	default (so has no effect). If only the 8-bit or the 16-bit
	library has been built, this option causes an error.

	-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
included, and then exit. All other options are ignored.	included, and then exit with zero exit code. All other
	options 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 indicated:	as RunTest. The following options output the value and set
	the exit code as indicated:

linksize the internal link size (2, 3, or 4)	ebcdic-nl the code for LF (= NL) in an EBCDIC environment:
	0x15 or 0x25
	0 if used in an ASCII environment
	exit code is always 0
	linksize the configured internal link size (2, 3, or 4)
	exit code is set to the link size
newline the default newline setting:	newline the default newline setting:
CR, LF, CRLF, ANYCRLF, or ANY	CR, LF, CRLF, ANYCRLF, or ANY
	exit code is always 0

The following options output 1 for true or zero for false:	The following options output 1 for true or 0 The following options output 1 for true or 0
	set the exit code to the same value:

	ebcdic compiled for an EBCDIC environment
jit just-in-time support is available	jit just-in-time support is available
pcre16 the 16-bit library was built	pcre16 the 16-bit library was built
	pcre32 the 32-bit library was built
pcre8 the 8-bit library was built	pcre8 the 8-bit library was built
ucp Unicode property support is available	ucp Unicode property support is available
utf UTF-8 and/or UTF-16 support is available	utf UTF-8 and/or UTF-16 and/or UTF-32 support
	is available

-d Behave as if each pattern has the /D (debug) modifier; the	If an unknown option is given, an error message is output;
internal form and information about the compiled pattern is	the exit code is 0.

	-d Behave as if each pattern has the /D (debug) modifier; the
	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]_dfa_exec(), to be used instead of the standard	pcre[16\|32]_dfa_exec(), to be used instead of the standard
pcre[16]_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]_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
expression. The size is given in bytes for both libraries.	expression. The size is given in bytes for both libraries.

	-O Behave as if each pattern has the /O modifier, that is dis-
	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]_exec() or pcre[16]_dfa_exec() to be	when calling pcre[16\|32]_exec() or pcre[16\|32]_dfa_exec() to
osize. The default value is 45, which is enough for 14 cap-	be osize. The default value is 45, which is enough for 14
turing subexpressions for pcre[16]_exec() or 22 different	capturing subexpressions for pcre[16\|32]_exec() or 22 differ-
matches for pcre[16]_dfa_exec(). The vector size can be	ent matches for pcre[16\|32]_dfa_exec(). The vector size can
changed for individual matching calls by including \O in the	be changed for individual matching calls by including \O in
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
Line 112 COMMAND LINE OPTIONS	Line 162 COMMAND LINE OPTIONS

-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]_study(), caus-	the JIT compile options are passed to pcre[16\|32]_study(),
ing just-in-time optimization to be set up if it is avail-	causing just-in-time optimization to be set up if it is
able, for both full and partial matching. Specific JIT com-	available, for both full and partial matching. Specific JIT
pile options can be selected by following -s+ with a digit in	compile options can be selected by following -s+ with a digit
the range 1 to 7, which selects the JIT compile modes as fol-	in the range 1 to 7, which selects the JIT compile modes as
lows:	follows:

1 normal match only	1 normal match only
2 soft partial match only	2 soft partial match only
Line 131 COMMAND LINE OPTIONS	Line 181 COMMAND LINE OPTIONS
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.

If the /I or /D option is present on a pattern (requesting output about	Note that there are pattern options that can override -s,
the compiled pattern), information about the result of studying is not	either specifying no studying at all, or suppressing JIT com-
included when studying is caused only by -s and neither -i nor -d is	pilation.
present on the command line. This behaviour means that the output from
tests that are run with and without -s should be identical, except when
options that output information about the actual running of a match are
set.

The -M, -t, and -tm options, which give information about resources	If the /I or /D option is present on a pattern (requesting
used, are likely to produce different output with and without -s. Out-	output about the compiled pattern), information about the
put may also differ if the /C option is present on an individual pat-	result of studying is not included when studying is caused
tern. This uses callouts to trace the the matching process, and this	only by -s and neither -i nor -d is present on the command
may be different between studied and non-studied patterns. If the pat-	line. This behaviour means that the output from tests that
tern contains (*MARK) items there may also be differences, for the same	are run with and without -s should be identical, except when
reason. The -s command line option can be overridden for specific pat-	options that output information about the actual running of a
terns that should never be studied (see the /S pattern modifier below).	match are set.

-t Run each compile, study, and match many times with a timer,	The -M, -t, and -tm options, which give information about
and output resulting time per compile or match (in millisec-	resources used, are likely to produce different output with
onds). Do not set -m with -t, because you will then get the	and without -s. Output may also differ if the /C option is
size output a zillion times, and the timing will be dis-	present on an individual pattern. This uses callouts to trace
torted. You can control the number of iterations that are	the the matching process, and this may be different between
used for timing by following -t with a number (as a separate	studied and non-studied patterns. If the pattern contains
item on the command line). For example, "-t 1000" would iter-	(*MARK) items there may also be differences, for the same
ate 1000 times. The default is to iterate 500000 times.	reason. The -s command line option can be overridden for spe-
	cific patterns that should never be studied (see the /S pat-
	tern modifier below).

	-t Run each compile, study, and match many times with a timer,
	and output the resulting times per compile, study, or match
	(in milliseconds). Do not set -m with -t, because you will
	then get the size output a zillion times, and the timing will
	be distorted. You can control the number of iterations that
	are used for timing by following -t with a number (as a sepa-
	rate item on the command line). For example, "-t 1000" iter-
	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
	a run, the total times for all compiles, studies, and matches
	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 the 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. Following Perl usage, these are referred to below	single characters, though some of these can be qualified by further
as, for example, "the /i modifier", even though the delimiter of the	characters. Following Perl usage, these are referred to below as, for
pattern need not always be a slash, and no slash is used when writing	example, "the /i modifier", even though the delimiter of the pattern
modifiers. White space may appear between the final pattern delimiter	need not always be a slash, and no slash is used when writing modi-
and the first modifier, and between the modifiers themselves.	fiers. White space may appear between the final pattern delimiter and
	the first modifier, and between the modifiers themselves. For refer-
	ence, here is a complete list of modifiers. They fall into several
	groups that are described in detail in the following sections.

	/8 set UTF mode
	/9 set PCRE_NEVER_UTF (locks out UTF mode)
	/? disable UTF validity check
	/+ show remainder of subject after match
	/= show all captures (not just those that are set)

	/A set PCRE_ANCHORED
	/B show compiled code
	/C set PCRE_AUTO_CALLOUT
	/D same as /B plus /I
	/E set PCRE_DOLLAR_ENDONLY
	/F flip byte order in compiled pattern
	/f set PCRE_FIRSTLINE
	/G find all matches (shorten string)
	/g find all matches (use startoffset)
	/I show information about pattern
	/i set PCRE_CASELESS
	/J set PCRE_DUPNAMES
	/K show backtracking control names
	/L set locale
	/M show compiled memory size
	/m set PCRE_MULTILINE
	/N set PCRE_NO_AUTO_CAPTURE
	/O set PCRE_NO_AUTO_POSSESS
	/P use the POSIX wrapper
	/S study the pattern after compilation
	/s set PCRE_DOTALL
	/T select character tables
	/U set PCRE_UNGREEDY
	/W set PCRE_UCP
	/X set PCRE_EXTRA
	/x set PCRE_EXTENDED
	/Y set PCRE_NO_START_OPTIMIZE
	/Z don't show lengths in /B output

	/<any> set PCRE_NEWLINE_ANY
	/<anycrlf> set PCRE_NEWLINE_ANYCRLF
	/<cr> set PCRE_NEWLINE_CR
	/<crlf> set PCRE_NEWLINE_CRLF
	/<lf> set PCRE_NEWLINE_LF
	/<bsr_anycrlf> set PCRE_BSR_ANYCRLF
	/<bsr_unicode> set PCRE_BSR_UNICODE
	/<JS> set PCRE_JAVASCRIPT_COMPAT


	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[16]_com-	PCRE_DOTALL, or PCRE_EXTENDED options, respectively, when
pile() is called. These four modifier letters have the same effect as	pcre[16\|32]_compile() is called. These four modifier letters have the
they do in Perl. For example:	same effect as they do in Perl. For example:

/caseless/i	/caseless/i


	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:

Line 243 PATTERN MODIFIERS	Line 357 PATTERN MODIFIERS
/8 PCRE_UTF16 ) when using the 16-bit	/8 PCRE_UTF16 ) when using the 16-bit
/? PCRE_NO_UTF16_CHECK ) library	/? PCRE_NO_UTF16_CHECK ) library

	/8 PCRE_UTF32 ) when using the 32-bit
	/? PCRE_NO_UTF32_CHECK ) library

	/9 PCRE_NEVER_UTF
/A PCRE_ANCHORED	/A PCRE_ANCHORED
/C PCRE_AUTO_CALLOUT	/C PCRE_AUTO_CALLOUT
/E PCRE_DOLLAR_ENDONLY	/E PCRE_DOLLAR_ENDONLY
/f PCRE_FIRSTLINE	/f PCRE_FIRSTLINE
/J PCRE_DUPNAMES	/J PCRE_DUPNAMES
/N PCRE_NO_AUTO_CAPTURE	/N PCRE_NO_AUTO_CAPTURE
	/O PCRE_NO_AUTO_POSSESS
/U PCRE_UNGREEDY	/U PCRE_UNGREEDY
/W PCRE_UCP	/W PCRE_UCP
/X PCRE_EXTRA	/X PCRE_EXTRA
/Y PCRE_NO_START_OPTIMIZE	/Y PCRE_NO_START_OPTIMIZE
/<JS> PCRE_JAVASCRIPT_COMPAT	/<any> PCRE_NEWLINE_ANY
	/<anycrlf> PCRE_NEWLINE_ANYCRLF
/<cr> PCRE_NEWLINE_CR	/<cr> PCRE_NEWLINE_CR
/<lf> PCRE_NEWLINE_LF
/<crlf> PCRE_NEWLINE_CRLF	/<crlf> PCRE_NEWLINE_CRLF
/<anycrlf> PCRE_NEWLINE_ANYCRLF	/<lf> PCRE_NEWLINE_LF
/<any> PCRE_NEWLINE_ANY
/<bsr_anycrlf> PCRE_BSR_ANYCRLF	/<bsr_anycrlf> PCRE_BSR_ANYCRLF
/<bsr_unicode> PCRE_BSR_UNICODE	/<bsr_unicode> PCRE_BSR_UNICODE
	/<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
Line 269 PATTERN MODIFIERS	Line 388 PATTERN MODIFIERS

/^abc/m<CRLF>	/^abc/m<CRLF>

As well as turning on the PCRE_UTF8/16 option, the /8 modifier causes	As well as turning on the PCRE_UTF8/16/32 option, the /8 modifier
all non-printing characters in output strings to be printed using the	causes all non-printing characters in output strings to be printed
\x{hh...} notation. Otherwise, those less than 0x100 are output in hex	using the \x{hh...} notation. Otherwise, those less than 0x100 are out-
without the curly brackets.	put 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.
Line 283 PATTERN MODIFIERS	Line 402 PATTERN MODIFIERS
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]_exec() to start searching at a new point within the entire	to pcre[16\|32]_exec() to start searching at a new point within the
string (which is in effect what Perl does), whereas the latter passes	entire string (which is in effect what Perl does), whereas the latter
over a shortened substring. This makes a difference to the matching	passes over a shortened substring. This makes a difference to the
process if the pattern begins with a lookbehind assertion (including \b	matching process if the pattern begins with a lookbehind assertion
or \B).	(including \b or \B).

If any call to pcre[16]_exec() in a /g or /G sequence matches an empty	If any call to pcre[16\|32]_exec() in a /g or /G sequence matches an
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
Line 316 PATTERN MODIFIERS	Line 435 PATTERN MODIFIERS
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]_exec()). Values in the offsets vector corre-	return code from pcre[16\|32]_exec()). Values in the offsets vector cor-
sponding to higher numbers should be set to -1, and these are output as	responding to higher numbers should be set to -1, and these are output
"<unset>". This modifier gives a way of checking that this is happen-	as "<unset>". This modifier gives a way of checking that this is hap-
ing.	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
Line 341 PATTERN MODIFIERS	Line 460 PATTERN MODIFIERS

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]_fullinfo() after compiling	and so on). It does this by calling pcre[16\|32]_fullinfo() after com-
a pattern. If the pattern is studied, the results of that are also out-	piling a pattern. If the pattern is studied, the results of that are
put.	also output.

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]_exec(). It causes	trol verbs that are returned from calls to pcre[16\|32]_exec(). It
pcretest to create a pcre[16]_extra block if one has not already been	causes pcretest to create a pcre[16\|32]_extra block if one has not
created by a call to pcre[16]_study(), and to set the PCRE_EXTRA_MARK	already been created by a call to pcre[16\|32]_study(), and to set the
flag and the mark field within it, every time that pcre[16]_exec() is	PCRE_EXTRA_MARK flag and the mark field within it, every time that
called. If the variable that the mark field points to is non-NULL for a	pcre[16\|32]_exec() is called. If the variable that the mark field
match, non-match, or partial match, pcretest prints the string to which	points to is non-NULL for a match, non-match, or partial match,
it points. For a match, this is shown on a line by itself, tagged with	pcretest prints the string to which it points. For a match, this is
"MK:". For a non-match it is added to the message.	shown on a line by itself, tagged with "MK:". For a non-match it is
	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]_maketables() is called to build a set of character tables for	pcre[16\|32]_maketables() is called to build a set of character tables
the locale, and this is then passed to pcre[16]_compile() when compil-	for the locale, and this is then passed to pcre[16\|32]_compile() when
ing the regular expression. Without an /L (or /T) modifier, NULL is	compiling the regular expression. Without an /L (or /T) modifier, NULL
passed as the tables pointer; that is, /L applies only to the expres-	is passed as the tables pointer; that is, /L applies only to the
sion on which it appears.	expression 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] block; it is just the actual compiled data. If the pat-	of the pcre[16\|32] block; it is just the actual compiled data. If the
tern 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.

If the /S modifier appears once, it causes pcre[16]_study() to be	The /S modifier causes pcre[16\|32]_study() to be called after the
called after the expression has been compiled, and the results used	expression has been compiled, and the results used when the expression
when the expression is matched. If /S appears twice, it suppresses	is matched. There are a number of qualifying characters that may follow
studying, even if it was requested externally by the -s command line	/S. They may appear in any order.
option. This makes it possible to specify that certain patterns are
always studied, 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 pattern is studied.

If the /S modifier is immediately followed by a + character, the call	If /S is followed by an exclamation mark, pcre[16\|32]_study() is called
to pcre[16]_study() is made with all the JIT study options, requesting	with the PCRE_STUDY_EXTRA_NEEDED option, causing it always to return a
	pcre_extra block, even when studying discovers no useful information.

	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
	makes it possible to specify that certain patterns are always studied,
	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
	pattern is studied.

	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
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:
Line 403 PATTERN MODIFIERS	Line 530 PATTERN MODIFIERS
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]_exec() is run, except when incompatible run-time	be used when pcre[16\|32]_exec() is run, except when incompatible run-
options are specified. For more details, see the pcrejit documentation.	time options are specified. For more details, see the pcrejit documen-
See also the \J escape sequence below for a way of setting the size of	tation. See also the \J escape sequence below for a way of setting the
the JIT stack.	size of the JIT stack.

The /T modifier must be followed by a single digit. It causes a spe-	Finally, if /S is followed by a minus character, JIT compilation is
cific set of built-in character tables to be passed to pcre[16]_com-	suppressed, even if it was requested externally by the -s command line
pile(). It is used in the standard PCRE tests to check behaviour with	option. This makes it possible to specify that JIT is never to be used
	for certain patterns.

	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-
	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
Line 435 PATTERN MODIFIERS	Line 567 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
ignored.	ignored.

	Locking out certain modifiers

	PCRE can be compiled with or without support for certain features such
	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
	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-
	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
	early as possible, there is a facility for locking out specific modi-
	fiers. If an input line for pcretest starts with the string "< forbid "
	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-
	code property support, this line appears:

	< forbid 8W

	This locks out the /8 and /W modifiers. An immediate error is given if
	they are subsequently encountered. If the character string contains <
	but not >, all the multi-character modifiers that begin with < are
	locked out. Otherwise, such modifiers must be explicitly listed, for
	example:

	< forbid <JS><cr>

	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
	request to re-load a pre-compiled pattern (see "SAVING AND RELOADING
	COMPILED PATTERNS" below) or, if there is a another < character, as a
	pattern that uses < as its delimiter.


DATA LINES	DATA LINES

Before each data line is passed to pcre[16]_exec(), leading and trail-	Before each data line is passed to pcre[16\|32]_exec(), leading and
ing white space is removed, and it is then scanned for \ escapes. Some	trailing white space is removed, and it is then scanned for \ escapes.
of these are pretty esoteric features, intended for checking out some	Some of these are pretty esoteric features, intended for checking out
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:

Line 459 DATA LINES	Line 622 DATA LINES
\t tab (\x09)	\t tab (\x09)
\v vertical tab (\x0b)	\v vertical tab (\x0b)
\nnn octal character (up to 3 octal digits); always	\nnn octal character (up to 3 octal digits); always
a byte unless > 255 in UTF-8 or 16-bit mode	a byte unless > 255 in UTF-8 or 16-bit or 32-bit mode
	\o{dd...} octal character (any number of octal digits}
\xhh hexadecimal byte (up to 2 hex digits)	\xhh hexadecimal byte (up to 2 hex digits)
\x{hh...} hexadecimal character (any number of hex digits)	\x{hh...} hexadecimal character (any number of hex digits)
\A pass the PCRE_ANCHORED option to pcre[16]_exec()	\A pass the PCRE_ANCHORED option to pcre[16\|32]_exec()
or pcre[16]_dfa_exec()	or pcre[16\|32]_dfa_exec()
\B pass the PCRE_NOTBOL option to pcre[16]_exec()	\B pass the PCRE_NOTBOL option to pcre[16\|32]_exec()
or pcre[16]_dfa_exec()	or pcre[16\|32]_dfa_exec()
\Cdd call pcre[16]_copy_substring() for substring dd	\Cdd call pcre[16\|32]_copy_substring() for substring dd
after a successful match (number less than 32)	after a successful match (number less than 32)
\Cname call pcre[16]_copy_named_substring() for substring	\Cname call pcre[16\|32]_copy_named_substring() for substring
"name" after a successful match (name termin-	"name" after a successful match (name termin-
ated by next non alphanumeric character)	ated by next non alphanumeric character)
\C+ show the current captured substrings at callout	\C+ show the current captured substrings at callout
Line 480 DATA LINES	Line 644 DATA LINES
reached for the nth time	reached for the nth time
\C*n pass the number n (may be negative) as callout	\C*n pass the number n (may be negative) as callout
data; this is used as the callout return value	data; this is used as the callout return value
\D use the pcre[16]_dfa_exec() match function	\D use the pcre[16\|32]_dfa_exec() match function
\F only shortest match for pcre[16]_dfa_exec()	\F only shortest match for pcre[16\|32]_dfa_exec()
\Gdd call pcre[16]_get_substring() for substring dd	\Gdd call pcre[16\|32]_get_substring() for substring dd
after a successful match (number less than 32)	after a successful match (number less than 32)
\Gname call pcre[16]_get_named_substring() for substring	\Gname call pcre[16\|32]_get_named_substring() for substring
"name" after a successful match (name termin-	"name" after a successful match (name termin-
ated by next non-alphanumeric character)	ated by next non-alphanumeric character)
\Jdd set up a JIT stack of dd kilobytes maximum (any	\Jdd set up a JIT stack of dd kilobytes maximum (any
number of digits)	number of digits)
\L call pcre[16]_get_substringlist() after a	\L call pcre[16\|32]_get_substringlist() after a
successful match	successful match
\M discover the minimum MATCH_LIMIT and	\M discover the minimum MATCH_LIMIT and
MATCH_LIMIT_RECURSION settings	MATCH_LIMIT_RECURSION settings
\N pass the PCRE_NOTEMPTY option to pcre[16]_exec()	\N pass the PCRE_NOTEMPTY option to pcre[16\|32]_exec()
or pcre[16]_dfa_exec(); if used twice, pass the	or pcre[16\|32]_dfa_exec(); if used twice, pass the
PCRE_NOTEMPTY_ATSTART option	PCRE_NOTEMPTY_ATSTART option
\Odd set the size of the output vector passed to	\Odd set the size of the output vector passed to
pcre[16]_exec() to dd (any number of digits)	pcre[16\|32]_exec() to dd (any number of digits)
\P pass the PCRE_PARTIAL_SOFT option to pcre[16]_exec()	\P pass the PCRE_PARTIAL_SOFT option to pcre[16\|32]_exec()
or pcre[16]_dfa_exec(); if used twice, pass the	or pcre[16\|32]_dfa_exec(); if used twice, pass the
PCRE_PARTIAL_HARD option	PCRE_PARTIAL_HARD option
\Qdd set the PCRE_MATCH_LIMIT_RECURSION limit to dd	\Qdd set the PCRE_MATCH_LIMIT_RECURSION limit to dd
(any number of digits)	(any number of digits)
\R pass the PCRE_DFA_RESTART option to pcre[16]_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 pcre[16]_exec()	\Y pass the PCRE_NO_START_OPTIMIZE option to
or pcre[16]_dfa_exec()	pcre[16\|32]_exec()
\Z pass the PCRE_NOTEOL option to pcre[16]_exec()	or pcre[16\|32]_dfa_exec()
or pcre[16]_dfa_exec()	\Z pass the PCRE_NOTEOL option to pcre[16\|32]_exec()
\? pass the PCRE_NO_UTF[8\|16]_CHECK option to	or pcre[16\|32]_dfa_exec()
pcre[16]_exec() or pcre[16]_dfa_exec()	\>dd start the match at offset dd (optional "-"; then
	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]_exec() or pcre[16]_dfa_exec()	argument for pcre[16\|32]_exec() or
\<cr> pass the PCRE_NEWLINE_CR option to pcre[16]_exec()	pcre[16\|32]_dfa_exec()
or pcre[16]_dfa_exec()	\<cr> pass the PCRE_NEWLINE_CR option to pcre[16\|32]_exec()
\<lf> pass the PCRE_NEWLINE_LF option to pcre[16]_exec()	or pcre[16\|32]_dfa_exec()
or pcre[16]_dfa_exec()	\<lf> pass the PCRE_NEWLINE_LF option to pcre[16\|32]_exec()
\<crlf> pass the PCRE_NEWLINE_CRLF option to pcre[16]_exec()	or pcre[16\|32]_dfa_exec()
or pcre[16]_dfa_exec()	\<crlf> pass the PCRE_NEWLINE_CRLF option to pcre[16\|32]_exec()
\<anycrlf> pass the PCRE_NEWLINE_ANYCRLF option to pcre[16]_exec()	or pcre[16\|32]_dfa_exec()
or pcre[16]_dfa_exec()	\<anycrlf> pass the PCRE_NEWLINE_ANYCRLF option to pcre[16\|32]_exec()
\<any> pass the PCRE_NEWLINE_ANY option to pcre[16]_exec()	or pcre[16\|32]_dfa_exec()
or pcre[16]_dfa_exec()	\<any> pass the PCRE_NEWLINE_ANY option to pcre[16\|32]_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-
Line 541 DATA LINES	Line 707 DATA LINES
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
	makes it possible to construct invalid UTF-32 sequences for testing
	purposes.

The escapes that specify line ending sequences are literal strings,	The escapes that specify line ending sequences are literal strings,
exactly as shown. No more than one newline setting should be present in	exactly as shown. No more than one newline setting should be present in
any data line.	any data line.
Line 555 DATA LINES	Line 725 DATA LINES
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]_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]_extra data structure, until it finds the minimum numbers	the pcre[16\|32]_extra data structure, until it finds the minimum num-
for each parameter that allow pcre[16]_exec() to complete without	bers for each parameter that allow pcre[16\|32]_exec() to complete with-
error. Because this is testing a specific feature of the normal inter-	out error. Because this is testing a specific feature of the normal
pretive pcre[16]_exec() execution, the use of any JIT optimization that	interpretive pcre[16\|32]_exec() execution, the use of any JIT optimiza-
might have been set up by the /S+ qualifier of -s+ option is disabled.	tion that might have been set up by the /S+ qualifier of -s+ option is
	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
attempt.	attempt.

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]_exec() for the line in which it appears.	only to the call of pcre[16\|32]_exec() for the line in which it
	appears.

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
Line 585 DATA LINES	Line 757 DATA LINES
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]_exec() to match each data line. PCRE also supports an alterna-	pcre[16\|32]_exec() to match each data line. PCRE also supports an
tive matching function, pcre[16]_dfa_test(), which operates in a dif-	alternative matching function, pcre[16\|32]_dfa_test(), which operates
ferent way, and has some restrictions. The differences between the two	in a different way, and has some restrictions. The differences between
functions are described in the pcrematching documentation.	the 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.
Line 600 THE ALTERNATIVE MATCHING FUNCTION	Line 772 THE ALTERNATIVE MATCHING FUNCTION
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]_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]_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]_exec() returns	partially matching substring when pcre[16\|32]_exec() returns
PCRE_ERROR_PARTIAL. (Note that this is the entire substring that was	PCRE_ERROR_PARTIAL. (Note that this is the entire substring that was
inspected during the partial match; it may include characters before	inspected during the partial match; it may include characters before
the actual match start if a lookbehind assertion, \K, \b, or \B was	the actual match start if a lookbehind assertion, \K, \b, or \B was
Line 628 DEFAULT OUTPUT FROM PCRETEST	Line 800 DEFAULT OUTPUT FROM PCRETEST
No match	No match

Unset capturing substrings that are not followed by one that is set are	Unset capturing substrings that are not followed by one that is set are
not returned by pcre[16]_exec(), and are not shown by pcretest. In the	not returned by pcre[16\|32]_exec(), and are not shown by pcretest. In
following example, there are two capturing substrings, but when the	the following example, there are two capturing substrings, but when the
first data line is matched, the second, unset substring is not shown.	first data line is matched, the second, unset substring is not shown.
An "internal" unset substring is shown as "<unset>", as for the second	An "internal" unset substring is shown as "<unset>", as for the second
data line.	data line.
Line 690 DEFAULT OUTPUT FROM PCRETEST	Line 862 DEFAULT OUTPUT FROM PCRETEST

OUTPUT FROM THE ALTERNATIVE MATCHING FUNCTION	OUTPUT FROM THE ALTERNATIVE MATCHING FUNCTION

When the alternative matching function, pcre[16]_dfa_exec(), is used	When the alternative matching function, pcre[16\|32]_dfa_exec(), is used
(by means of the \D escape sequence or the -dfa command line option),	(by means of the \D escape sequence or the -dfa command line option),
the output consists of a list of all the matches that start at the	the output consists of a list of all the matches that start at the
first point in the subject where there is at least one match. For exam-	first point in the subject where there is at least one match. For exam-
Line 843 SAVING AND RELOADING COMPILED PATTERNS	Line 1015 SAVING AND RELOADING COMPILED PATTERNS
writing the file, pcretest expects to read a new pattern.	writing 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. The name of the file must not contain a	file name instead of a pattern. There must be no space between < and
< character, as otherwise pcretest will interpret the line as a pattern	the file name, which must not contain a < character, as otherwise
delimited by < characters. For example:	pcretest will interpret the line as a pattern delimited by < charac-
	ters. For example:

re> </some/file	re> </some/file
Compiled pattern loaded from /some/file	Compiled pattern loaded from /some/file
No study data	No study data

If the pattern was previously studied with the JIT optimization, the	If the pattern was previously studied with the JIT optimization, the
JIT information cannot be saved and restored, and so is lost. When the	JIT information cannot be saved and restored, and so is lost. When the
pattern has been loaded, pcretest proceeds to read data lines in the	pattern has been loaded, pcretest proceeds to read data lines in the
usual way.	usual way.

You can copy a file written by pcretest to a different host and reload	You can copy a file written by pcretest to a different host and reload
it there, even if the new host has opposite endianness to the one on	it there, even if the new host has opposite endianness to the one on
which the pattern was compiled. For example, you can compile on an i86	which the pattern was compiled. For example, you can compile on an i86
machine and run on a SPARC machine. When a pattern is reloaded on a	machine and run on a SPARC machine. When a pattern is reloaded on a
host with different endianness, the confirmation message is changed to:	host with different endianness, the confirmation message is changed to:

Compiled pattern (byte-inverted) loaded from /some/file	Compiled pattern (byte-inverted) loaded from /some/file

The test suite contains some saved pre-compiled patterns with different	The test suite contains some saved pre-compiled patterns with different
endianness. These are reloaded using "<!" instead of just "<". This	endianness. These are reloaded using "<!" instead of just "<". This
suppresses the "(byte-inverted)" text so that the output is the same on	suppresses the "(byte-inverted)" text so that the output is the same on
all hosts. It also forces debugging output once the pattern has been	all hosts. It also forces debugging output once all hosts. It also forces debugging output once the pattern has been
reloaded.	reloaded.

File names for saving and reloading can be absolute or relative, but	File names for saving and reloading can be absolute or relative, but
note that the shell facility of expanding a file name that starts with	note that the shell facility of expanding a file name that starts with
a tilde (~) is not available.	a tilde (~) is not available.

The ability to save and reload files in pcretest is intended for test-	The ability to save and reload files in pcretest is intended for test-
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
tables, an attempt to match a subject string using a reloaded pattern	tables, an attempt to match a subject string using a reloaded pattern
is likely to cause pcretest to crash. Finally, if you attempt to load	is likely to cause pcretest to crash. Finally, if you attempt to load
a file that is not in the correct format, the result is undefined.	a file that is not in the correct format, the result is undefined.


SEE ALSO	SEE ALSO

pcre(3), pcre16(3), pcreapi(3), pcrecallout(3), pcrejit, pcrematch-	pcre(3), pcre16(3), pcre32(3), pcreapi(3), pcrecallout(3), pcrejit,
ing(3), pcrepartial(d), pcrepattern(3), pcreprecompile(3).	pcrematching(3), pcrepartial(d), pcrepattern(3), pcreprecompile(3).


AUTHOR	AUTHOR
Line 899 AUTHOR	Line 1072 AUTHOR

REVISION	REVISION

Last updated: 21 February 2012	Last updated: 12 November 2013
Copyright (c) 1997-2012 University of Cambridge.	Copyright (c) 1997-2013 University of Cambridge.

FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>

Removed from v.1.1.1.3
changed lines
	Added in v.1.1.1.5