Documentation update to clarify what PCRE2 serialization is.

git-svn-id: svn://vcs.exim.org/pcre2/code/trunk@950 6239d852-aaf2-0410-a92c-79f79f948069

1 files changed, 15 insertions, 11 deletions

diff --git a/doc/pcre2test.txt b/doc/pcre2test.txt
index d831deb..f3d8e16 100644
--- a/doc/pcre2test.txt
+++ b/doc/pcre2test.txt
@@ -1747,16 +1747,20 @@ SAVING AND RESTORING COMPILED PATTERNS
        ize  documentation.  In  this  section  we  describe  the  features  of
        pcre2test that can be used to test these functions.
 
-       When  a  pattern  with  push  modifier  is successfully compiled, it is
-       pushed onto a stack of compiled patterns,  and  pcre2test  expects  the
-       next  line  to  contain a new pattern (or command) instead of a subject
-       line. By contrast, the pushcopy modifier causes a copy of the  compiled
-       pattern  to  be  stacked,  leaving the original available for immediate
-       matching. By using push and/or pushcopy, a number of  patterns  can  be
-       compiled and retained. These modifiers are incompatible with posix, and
-       control modifiers that act at match time are ignored (with  a  message)
-       for  the  stacked patterns. The jitverify modifier applies only at com-
-       pile time.
+       Note  that  "serialization" in PCRE2 does not convert compiled patterns
+       to an abstract format like Java or .NET. It  just  makes  a  reloadable
+       byte code stream.  Hence the restrictions on reloading mentioned above.
+
+       In  pcre2test,  when  a pattern with push modifier is successfully com-
+       piled, it is pushed onto a stack of compiled  patterns,  and  pcre2test
+       expects  the next line to contain a new pattern (or command) instead of
+       a subject line. By contrast, the pushcopy modifier causes a copy of the
+       compiled  pattern  to  be  stacked,  leaving the original available for
+       immediate matching. By using push and/or pushcopy, a number of patterns
+       can  be  compiled  and  retained. These modifiers are incompatible with
+       posix, and control modifiers that act at match time are ignored (with a
+       message)  for the stacked patterns. The jitverify modifier applies only
+       at compile time.
 
        The command
 
@@ -1813,5 +1817,5 @@ AUTHOR
 
 REVISION
 
-       Last updated: 25 April 2018
+       Last updated: 27 June 2018
        Copyright (c) 1997-2018 University of Cambridge.