Revision: 1161
http://www.exim.org/viewvc/pcre2?view=rev&revision=1161
Author: ph10
Date: 2019-09-03 15:16:07 +0100 (Tue, 03 Sep 2019)
Log Message:
-----------
Add the pcre2_maketables_free() function.
Modified Paths:
--------------
code/trunk/ChangeLog
code/trunk/Makefile.am
code/trunk/doc/html/index.html
code/trunk/doc/html/pcre2api.html
code/trunk/doc/index.html.src
code/trunk/doc/pcre2.txt
code/trunk/doc/pcre2api.3
code/trunk/src/pcre2.h.in
code/trunk/src/pcre2_maketables.c
code/trunk/src/pcre2grep.c
Added Paths:
-----------
code/trunk/doc/html/pcre2_maketables_free.html
code/trunk/doc/pcre2_maketables_free.3
Modified: code/trunk/ChangeLog
===================================================================
--- code/trunk/ChangeLog 2019-08-26 16:28:26 UTC (rev 1160)
+++ code/trunk/ChangeLog 2019-09-03 14:16:07 UTC (rev 1161)
@@ -133,7 +133,9 @@
particular, if a pattern ended with a negative lookahead, characters that were
inspected in that lookahead were not included.
+30. Add the pcre2_maketables_free() function.
+
Version 10.33 16-April-2019
---------------------------
Modified: code/trunk/Makefile.am
===================================================================
--- code/trunk/Makefile.am 2019-08-26 16:28:26 UTC (rev 1160)
+++ code/trunk/Makefile.am 2019-09-03 14:16:07 UTC (rev 1161)
@@ -57,6 +57,7 @@
doc/html/pcre2_jit_stack_create.html \
doc/html/pcre2_jit_stack_free.html \
doc/html/pcre2_maketables.html \
+ doc/html/pcre2_maketables_free.html \
doc/html/pcre2_match.html \
doc/html/pcre2_match_context_copy.html \
doc/html/pcre2_match_context_create.html \
@@ -152,6 +153,7 @@
doc/pcre2_jit_stack_create.3 \
doc/pcre2_jit_stack_free.3 \
doc/pcre2_maketables.3 \
+ doc/pcre2_maketables_free.3 \
doc/pcre2_match.3 \
doc/pcre2_match_context_copy.3 \
doc/pcre2_match_context_create.3 \
@@ -360,7 +362,7 @@
src/pcre2_internal.h \
src/pcre2_intmodedep.h \
src/pcre2_jit_compile.c \
- src/pcre2_jit_simd_inc.h \
+ src/pcre2_jit_simd_inc.h \
src/pcre2_maketables.c \
src/pcre2_match.c \
src/pcre2_match_data.c \
Modified: code/trunk/doc/html/index.html
===================================================================
--- code/trunk/doc/html/index.html 2019-08-26 16:28:26 UTC (rev 1160)
+++ code/trunk/doc/html/index.html 2019-09-03 14:16:07 UTC (rev 1161)
@@ -179,6 +179,9 @@
<tr><td><a href="pcre2_maketables.html">pcre2_maketables</a></td>
<td> Build character tables in current locale</td></tr>
+<tr><td><a href="pcre2_maketables_free.html">pcre2_maketables_free</a></td>
+ <td> Free character tables</td></tr>
+
<tr><td><a href="pcre2_match.html">pcre2_match</a></td>
<td> Match a compiled pattern to a subject string
(Perl compatible)</td></tr>
Added: code/trunk/doc/html/pcre2_maketables_free.html
===================================================================
--- code/trunk/doc/html/pcre2_maketables_free.html (rev 0)
+++ code/trunk/doc/html/pcre2_maketables_free.html 2019-09-03 14:16:07 UTC (rev 1161)
@@ -0,0 +1,44 @@
+<html>
+<head>
+<title>pcre2_maketables_free specification</title>
+</head>
+<body bgcolor="#FFFFFF" text="#00005A" link="#0066FF" alink="#3399FF" vlink="#2222BB">
+<h1>pcre2_maketables_free man page</h1>
+<p>
+Return to the <a href="index.html">PCRE2 index page</a>.
+</p>
+<p>
+This page is part of the PCRE2 HTML documentation. It was generated
+automatically from the original man page. If there is any nonsense in it,
+please consult the man page, in case the conversion went wrong.
+<br>
+<br><b>
+SYNOPSIS
+</b><br>
+<P>
+<b>#include <pcre2.h></b>
+</P>
+<P>
+<b>void pcre2_maketables_free(pcre2_general_context *<i>gcontext</i>,</b>
+<b> const uint8_t *<i>tables</i>);</b>
+</P>
+<br><b>
+DESCRIPTION
+</b><br>
+<P>
+This function discards a set of character tables that were created by a call
+to
+<a href="pcre2_maketables.html"><b>pcre2_maketables()</b>.</a>
+</P>
+<P>
+The <i>gcontext</i> parameter should match what was used in that call to
+account for any custom allocators that might be in use; if it is NULL
+the system <b>free()</b> is used.
+</P>
+<P>
+There is a complete description of the PCRE2 native API in the
+<a href="pcre2api.html"><b>pcre2api</b></a>
+page.
+<p>
+Return to the <a href="index.html">PCRE2 index page</a>.
+</p>
Modified: code/trunk/doc/html/pcre2api.html
===================================================================
--- code/trunk/doc/html/pcre2api.html 2019-08-26 16:28:26 UTC (rev 1160)
+++ code/trunk/doc/html/pcre2api.html 2019-09-03 14:16:07 UTC (rev 1161)
@@ -312,6 +312,10 @@
<b>const uint8_t *pcre2_maketables(pcre2_general_context *<i>gcontext</i>);</b>
<br>
<br>
+<b>void pcre2_maketables_free(pcre2_general_context *<i>gcontext</i>, </b>
+<b> const uint8_t *<i>tables</i>);</b>
+<br>
+<br>
<b>int pcre2_pattern_info(const pcre2_code *<i>code</i>, uint32_t <i>what</i>,</b>
<b> void *<i>where</i>);</b>
<br>
@@ -794,7 +798,7 @@
<b> const uint8_t *<i>tables</i>);</b>
<br>
<br>
-The value must be the result of a call to <i>pcre2_maketables()</i>, whose only
+The value must be the result of a call to <b>pcre2_maketables()</b>, whose only
argument is a general context. This function builds a set of character tables
in the current locale.
<br>
@@ -1982,13 +1986,20 @@
<a name="localesupport"></a></P>
<br><a name="SEC22" href="#TOC1">LOCALE SUPPORT</a><br>
<P>
+<b>const uint8_t *pcre2_maketables(pcre2_general_context *<i>gcontext</i>);</b>
+<br>
+<br>
+<b>void pcre2_maketables_free(pcre2_general_context *<i>gcontext</i>, </b>
+<b> const uint8_t *<i>tables</i>);</b>
+</P>
+<P>
PCRE2 handles caseless matching, and determines whether characters are letters,
digits, or whatever, by reference to a set of tables, indexed by character code
-point. This applies only to characters whose code points are less than 256. By
-default, higher-valued code points never match escapes such as \w or \d.
-However, if PCRE2 is built with Unicode support, all characters can be tested
-with \p and \P, or, alternatively, the PCRE2_UCP option can be set when a
-pattern is compiled; this causes \w and friends to use Unicode property
+point. However, this applies only to characters whose code points are less than
+256. By default, higher-valued code points never match escapes such as \w or
+\d. When PCRE2 is built with Unicode support (the default), all characters can
+be tested with \p and \P, or, alternatively, the PCRE2_UCP option can be set
+when a pattern is compiled; this causes \w and friends to use Unicode property
support instead of the built-in tables.
</P>
<P>
@@ -1997,7 +2008,7 @@
use locales, but not try to mix the two.
</P>
<P>
-PCRE2 contains an internal set of character tables that are used by default.
+PCRE2 contains a built-in set of character tables that are used by default.
These are sufficient for many applications. Normally, the internal tables
recognize only ASCII characters. However, when PCRE2 is built, it is possible
to cause the internal tables to be rebuilt in the default "C" locale of the
@@ -2004,7 +2015,7 @@
local system, which may cause them to be different.
</P>
<P>
-The internal tables can be overridden by tables supplied by the application
+The built-in tables can be overridden by tables supplied by the application
that calls PCRE2. These may be created in a different locale from the default.
As more and more applications change to using Unicode, the need for this locale
support is expected to die away.
@@ -2011,10 +2022,14 @@
</P>
<P>
External tables are built by calling the <b>pcre2_maketables()</b> function, in
-the relevant locale. The result can be passed to <b>pcre2_compile()</b> as often
-as necessary, by creating a compile context and calling
-<b>pcre2_set_character_tables()</b> to set the tables pointer therein. For
-example, to build and use tables that are appropriate for the French locale
+the relevant locale. The only argument to this function is a general context,
+which can be used to pass a custom memory allocator. If the argument is NULL,
+the system <b>malloc()</b> is used. The result can be passed to
+<b>pcre2_compile()</b> as often as necessary, by creating a compile context and
+calling <b>pcre2_set_character_tables()</b> to set the tables pointer therein.
+</P>
+<P>
+For example, to build and use tables that are appropriate for the French locale
(where accented characters with values greater than 128 are treated as
letters), the following code could be used:
<pre>
@@ -2025,9 +2040,7 @@
re = pcre2_compile(..., ccontext);
</pre>
The locale name "fr_FR" is used on Linux and other Unix-like systems; if you
-are using Windows, the name for the French locale is "french". It is the
-caller's responsibility to ensure that the memory containing the tables remains
-available for as long as it is needed.
+are using Windows, the name for the French locale is "french".
</P>
<P>
The pointer that is passed (via the compile context) to <b>pcre2_compile()</b>
@@ -2035,6 +2048,13 @@
<b>pcre2_match()</b> and <b>pcre_dfa_match()</b>. Thus, for any single pattern,
compilation and matching both happen in the same locale, but different patterns
can be processed in different locales.
+</P>
+<P>
+It is the caller's responsibility to ensure that the memory containing the
+tables remains available while they are still in use. When they are no longer
+needed, you can discard them using <b>pcre2_maketables_free()</b>, which should
+pass as its first parameter the same global context that was used to create the
+tables.
<a name="infoaboutpattern"></a></P>
<br><a name="SEC23" href="#TOC1">INFORMATION ABOUT A COMPILED PATTERN</a><br>
<P>
@@ -3851,7 +3871,7 @@
</P>
<br><a name="SEC42" href="#TOC1">REVISION</a><br>
<P>
-Last updated: 01 August 2019
+Last updated: 02 September 2019
<br>
Copyright © 1997-2019 University of Cambridge.
<br>
Modified: code/trunk/doc/index.html.src
===================================================================
--- code/trunk/doc/index.html.src 2019-08-26 16:28:26 UTC (rev 1160)
+++ code/trunk/doc/index.html.src 2019-09-03 14:16:07 UTC (rev 1161)
@@ -179,6 +179,9 @@
<tr><td><a href="pcre2_maketables.html">pcre2_maketables</a></td>
<td> Build character tables in current locale</td></tr>
+<tr><td><a href="pcre2_maketables_free.html">pcre2_maketables_free</a></td>
+ <td> Free character tables</td></tr>
+
<tr><td><a href="pcre2_match.html">pcre2_match</a></td>
<td> Match a compiled pattern to a subject string
(Perl compatible)</td></tr>
Modified: code/trunk/doc/pcre2.txt
===================================================================
--- code/trunk/doc/pcre2.txt 2019-08-26 16:28:26 UTC (rev 1160)
+++ code/trunk/doc/pcre2.txt 2019-09-03 14:16:07 UTC (rev 1161)
@@ -402,6 +402,9 @@
const uint8_t *pcre2_maketables(pcre2_general_context *gcontext);
+ void pcre2_maketables_free(pcre2_general_context *gcontext,
+ const uint8_t *tables);
+
int pcre2_pattern_info(const pcre2_code *code, uint32_t what,
void *where);
@@ -1941,21 +1944,26 @@
LOCALE SUPPORT
+ const uint8_t *pcre2_maketables(pcre2_general_context *gcontext);
+
+ void pcre2_maketables_free(pcre2_general_context *gcontext,
+ const uint8_t *tables);
+
PCRE2 handles caseless matching, and determines whether characters are
letters, digits, or whatever, by reference to a set of tables, indexed
- by character code point. This applies only to characters whose code
- points are less than 256. By default, higher-valued code points never
- match escapes such as \w or \d. However, if PCRE2 is built with Uni-
- code support, all characters can be tested with \p and \P, or, alterna-
- tively, the PCRE2_UCP option can be set when a pattern is compiled;
- this causes \w and friends to use Unicode property support instead of
- the built-in tables.
+ by character code point. However, this applies only to characters whose
+ code points are less than 256. By default, higher-valued code points
+ never match escapes such as \w or \d. When PCRE2 is built with Unicode
+ support (the default), all characters can be tested with \p and \P, or,
+ alternatively, the PCRE2_UCP option can be set when a pattern is com-
+ piled; this causes \w and friends to use Unicode property support in-
+ stead of the built-in tables.
The use of locales with Unicode is discouraged. If you are handling
characters with code points greater than 128, you should either use
Unicode support, or use locales, but not try to mix the two.
- PCRE2 contains an internal set of character tables that are used by de-
+ PCRE2 contains a built-in set of character tables that are used by de-
fault. These are sufficient for many applications. Normally, the in-
ternal tables recognize only ASCII characters. However, when PCRE2 is
built, it is possible to cause the internal tables to be rebuilt in the
@@ -1962,19 +1970,23 @@
default "C" locale of the local system, which may cause them to be dif-
ferent.
- The internal tables can be overridden by tables supplied by the appli-
+ The built-in tables can be overridden by tables supplied by the appli-
cation that calls PCRE2. These may be created in a different locale
from the default. As more and more applications change to using Uni-
code, the need for this locale support is expected to die away.
External tables are built by calling the pcre2_maketables() function,
- in the relevant locale. The result can be passed to pcre2_compile() as
- often as necessary, by creating a compile context and calling
- pcre2_set_character_tables() to set the tables pointer therein. For ex-
- ample, to build and use tables that are appropriate for the French lo-
- cale (where accented characters with values greater than 128 are
- treated as letters), the following code could be used:
+ in the relevant locale. The only argument to this function is a general
+ context, which can be used to pass a custom memory allocator. If the
+ argument is NULL, the system malloc() is used. The result can be passed
+ to pcre2_compile() as often as necessary, by creating a compile context
+ and calling pcre2_set_character_tables() to set the tables pointer
+ therein.
+ For example, to build and use tables that are appropriate for the
+ French locale (where accented characters with values greater than 128
+ are treated as letters), the following code could be used:
+
setlocale(LC_CTYPE, "fr_FR");
tables = pcre2_maketables(NULL);
ccontext = pcre2_compile_context_create(NULL);
@@ -1982,9 +1994,7 @@
re = pcre2_compile(..., ccontext);
The locale name "fr_FR" is used on Linux and other Unix-like systems;
- if you are using Windows, the name for the French locale is "french".
- It is the caller's responsibility to ensure that the memory containing
- the tables remains available for as long as it is needed.
+ if you are using Windows, the name for the French locale is "french".
The pointer that is passed (via the compile context) to pcre2_compile()
is saved with the compiled pattern, and the same tables are used by
@@ -1992,7 +2002,13 @@
pilation and matching both happen in the same locale, but different
patterns can be processed in different locales.
+ It is the caller's responsibility to ensure that the memory containing
+ the tables remains available while they are still in use. When they are
+ no longer needed, you can discard them using pcre2_maketables_free(),
+ which should pass as its first parameter the same global context that
+ was used to create the tables.
+
INFORMATION ABOUT A COMPILED PATTERN
int pcre2_pattern_info(const pcre2 *code, uint32_t what, void *where);
@@ -3706,7 +3722,7 @@
REVISION
- Last updated: 01 August 2019
+ Last updated: 02 September 2019
Copyright (c) 1997-2019 University of Cambridge.
------------------------------------------------------------------------------
Added: code/trunk/doc/pcre2_maketables_free.3
===================================================================
--- code/trunk/doc/pcre2_maketables_free.3 (rev 0)
+++ code/trunk/doc/pcre2_maketables_free.3 2019-09-03 14:16:07 UTC (rev 1161)
@@ -0,0 +1,31 @@
+.TH PCRE2_MAKETABLES_FREE 3 "02 September 2019" "PCRE2 10.34"
+.SH NAME
+PCRE2 - Perl-compatible regular expressions (revised API)
+.SH SYNOPSIS
+.rs
+.sp
+.B #include <pcre2.h>
+.PP
+.nf
+.B void pcre2_maketables_free(pcre2_general_context *\fIgcontext\fP,
+.B " const uint8_t *\fItables\fP);"
+.fi
+.
+.SH DESCRIPTION
+.rs
+.sp
+This function discards a set of character tables that were created by a call
+to
+.\" HREF
+\fBpcre2_maketables()\fP.
+.\"
+.P
+The \fIgcontext\fP parameter should match what was used in that call to
+account for any custom allocators that might be in use; if it is NULL
+the system \fBfree()\fP is used.
+.P
+There is a complete description of the PCRE2 native API in the
+.\" HREF
+\fBpcre2api\fP
+.\"
+page.
Modified: code/trunk/doc/pcre2api.3
===================================================================
--- code/trunk/doc/pcre2api.3 2019-08-26 16:28:26 UTC (rev 1160)
+++ code/trunk/doc/pcre2api.3 2019-09-03 14:16:07 UTC (rev 1161)
@@ -1,4 +1,4 @@
-.TH PCRE2API 3 "01 August 2019" "PCRE2 10.34"
+.TH PCRE2API 3 "02 September 2019" "PCRE2 10.34"
.SH NAME
PCRE2 - Perl-compatible regular expressions (revised API)
.sp
@@ -247,6 +247,9 @@
.sp
.B const uint8_t *pcre2_maketables(pcre2_general_context *\fIgcontext\fP);
.sp
+.B void pcre2_maketables_free(pcre2_general_context *\fIgcontext\fP,
+.B " const uint8_t *\fItables\fP);"
+.sp
.B int pcre2_pattern_info(const pcre2_code *\fIcode\fP, uint32_t \fIwhat\fP,
.B " void *\fIwhere\fP);"
.sp
@@ -728,7 +731,7 @@
.B " const uint8_t *\fItables\fP);"
.fi
.sp
-The value must be the result of a call to \fIpcre2_maketables()\fP, whose only
+The value must be the result of a call to \fBpcre2_maketables()\fP, whose only
argument is a general context. This function builds a set of character tables
in the current locale.
.sp
@@ -1943,13 +1946,20 @@
.SH "LOCALE SUPPORT"
.rs
.sp
+.nf
+.B const uint8_t *pcre2_maketables(pcre2_general_context *\fIgcontext\fP);
+.sp
+.B void pcre2_maketables_free(pcre2_general_context *\fIgcontext\fP,
+.B " const uint8_t *\fItables\fP);"
+.fi
+.P
PCRE2 handles caseless matching, and determines whether characters are letters,
digits, or whatever, by reference to a set of tables, indexed by character code
-point. This applies only to characters whose code points are less than 256. By
-default, higher-valued code points never match escapes such as \ew or \ed.
-However, if PCRE2 is built with Unicode support, all characters can be tested
-with \ep and \eP, or, alternatively, the PCRE2_UCP option can be set when a
-pattern is compiled; this causes \ew and friends to use Unicode property
+point. However, this applies only to characters whose code points are less than
+256. By default, higher-valued code points never match escapes such as \ew or
+\ed. When PCRE2 is built with Unicode support (the default), all characters can
+be tested with \ep and \eP, or, alternatively, the PCRE2_UCP option can be set
+when a pattern is compiled; this causes \ew and friends to use Unicode property
support instead of the built-in tables.
.P
The use of locales with Unicode is discouraged. If you are handling characters
@@ -1956,22 +1966,25 @@
with code points greater than 128, you should either use Unicode support, or
use locales, but not try to mix the two.
.P
-PCRE2 contains an internal set of character tables that are used by default.
+PCRE2 contains a built-in set of character tables that are used by default.
These are sufficient for many applications. Normally, the internal tables
recognize only ASCII characters. However, when PCRE2 is built, it is possible
to cause the internal tables to be rebuilt in the default "C" locale of the
local system, which may cause them to be different.
.P
-The internal tables can be overridden by tables supplied by the application
+The built-in tables can be overridden by tables supplied by the application
that calls PCRE2. These may be created in a different locale from the default.
As more and more applications change to using Unicode, the need for this locale
support is expected to die away.
.P
External tables are built by calling the \fBpcre2_maketables()\fP function, in
-the relevant locale. The result can be passed to \fBpcre2_compile()\fP as often
-as necessary, by creating a compile context and calling
-\fBpcre2_set_character_tables()\fP to set the tables pointer therein. For
-example, to build and use tables that are appropriate for the French locale
+the relevant locale. The only argument to this function is a general context,
+which can be used to pass a custom memory allocator. If the argument is NULL,
+the system \fBmalloc()\fP is used. The result can be passed to
+\fBpcre2_compile()\fP as often as necessary, by creating a compile context and
+calling \fBpcre2_set_character_tables()\fP to set the tables pointer therein.
+.P
+For example, to build and use tables that are appropriate for the French locale
(where accented characters with values greater than 128 are treated as
letters), the following code could be used:
.sp
@@ -1982,9 +1995,7 @@
re = pcre2_compile(..., ccontext);
.sp
The locale name "fr_FR" is used on Linux and other Unix-like systems; if you
-are using Windows, the name for the French locale is "french". It is the
-caller's responsibility to ensure that the memory containing the tables remains
-available for as long as it is needed.
+are using Windows, the name for the French locale is "french".
.P
The pointer that is passed (via the compile context) to \fBpcre2_compile()\fP
is saved with the compiled pattern, and the same tables are used by
@@ -1991,6 +2002,12 @@
\fBpcre2_match()\fP and \fBpcre_dfa_match()\fP. Thus, for any single pattern,
compilation and matching both happen in the same locale, but different patterns
can be processed in different locales.
+.P
+It is the caller's responsibility to ensure that the memory containing the
+tables remains available while they are still in use. When they are no longer
+needed, you can discard them using \fBpcre2_maketables_free()\fP, which should
+pass as its first parameter the same global context that was used to create the
+tables.
.
.
.\" HTML <a name="infoaboutpattern"></a>
@@ -3863,6 +3880,6 @@
.rs
.sp
.nf
-Last updated: 01 August 2019
+Last updated: 02 September 2019
Copyright (c) 1997-2019 University of Cambridge.
.fi
Modified: code/trunk/src/pcre2.h.in
===================================================================
--- code/trunk/src/pcre2.h.in 2019-08-26 16:28:26 UTC (rev 1160)
+++ code/trunk/src/pcre2.h.in 2019-09-03 14:16:07 UTC (rev 1161)
@@ -779,8 +779,9 @@
pcre2_get_error_message(int, PCRE2_UCHAR *, PCRE2_SIZE); \
PCRE2_EXP_DECL const uint8_t PCRE2_CALL_CONVENTION \
*pcre2_maketables(pcre2_general_context *); \
+PCRE2_EXP_DECL void PCRE2_CALL_CONVENTION \
+ pcre2_maketables_free(pcre2_general_context *, const uint8_t *);
-
/* Define macros that generate width-specific names from generic versions. The
three-level macro scheme is necessary to get the macros expanded when we want
them to be. First we get the width from PCRE2_LOCAL_WIDTH, which is used for
@@ -855,6 +856,7 @@
#define pcre2_jit_stack_create PCRE2_SUFFIX(pcre2_jit_stack_create_)
#define pcre2_jit_stack_free PCRE2_SUFFIX(pcre2_jit_stack_free_)
#define pcre2_maketables PCRE2_SUFFIX(pcre2_maketables_)
+#define pcre2_maketables_free PCRE2_SUFFIX(pcre2_maketables_free_)
#define pcre2_match PCRE2_SUFFIX(pcre2_match_)
#define pcre2_match_context_copy PCRE2_SUFFIX(pcre2_match_context_copy_)
#define pcre2_match_context_create PCRE2_SUFFIX(pcre2_match_context_create_)
Modified: code/trunk/src/pcre2_maketables.c
===================================================================
--- code/trunk/src/pcre2_maketables.c 2019-08-26 16:28:26 UTC (rev 1160)
+++ code/trunk/src/pcre2_maketables.c 2019-09-03 14:16:07 UTC (rev 1161)
@@ -147,4 +147,13 @@
return yield;
}
+PCRE2_EXP_DEFN void PCRE2_CALL_CONVENTION
+pcre2_maketables_free(pcre2_general_context *gcontext, const uint8_t *tables)
+{
+ if (gcontext)
+ gcontext->memctl.free((void *)tables, gcontext->memctl.memory_data);
+ else
+ free((void *)tables);
+}
+
/* End of pcre2_maketables.c */
Modified: code/trunk/src/pcre2grep.c
===================================================================
--- code/trunk/src/pcre2grep.c 2019-08-26 16:28:26 UTC (rev 1160)
+++ code/trunk/src/pcre2grep.c 2019-09-03 14:16:07 UTC (rev 1161)
@@ -4390,7 +4390,7 @@
#endif
free(main_buffer);
-free((void *)character_tables);
+if (character_tables != NULL) pcre2_maketables_free(NULL, character_tables);
pcre2_compile_context_free(compile_context);
pcre2_match_context_free(match_context);
