pmg-bibliography.adoc: add Mastering Regular Expressions

diff --git a/pmg-bibliography.adoc b/pmg-bibliography.adoc
index 7a07b63c86038f6a83b9333d468c81f5a21c1310..95bc47d9c2fc81fd56f4f3c87812291ef75ff269 100644 (file)
--- a/pmg-bibliography.adoc
+++ b/pmg-bibliography.adoc
@@ -42,6 +42,11 @@ endif::manvolnum[]
   O'Reilly Media, 2007.
   ISBN 978-0596529260
 
+- [[[Friedl97]]] Jeffrey E. F. Friedl.
+  'Mastering Regular Expressions'.
+  O'Reilly & Associates, 2006.
+  ISBN 978-0596528126
+
 - [[[Mauerer08]]] Wolfgang Mauerer.
   'Professional Linux Kernel Architecture'.
   John Wiley & Sons, 2008.

diff --git a/pmg-mail-filter.adoc b/pmg-mail-filter.adoc
index a02c5bf892da70c5ddf1512aa24d106bd30214e1..15c1022a8157bc97ee165afb08cf21ecf9a130c7 100644 (file)
--- a/pmg-mail-filter.adoc
+++ b/pmg-mail-filter.adoc
@@ -277,3 +277,5 @@ the period. This is used to match an arbitrary string of any length,
 including the null string. For example: `.*company.*` matches
 "company@domain.com" or "company@domain.co.uk" or
 "department.company@domain.com".
+
+The book xref:Friedl97[] provides a more comprehensive introduction.
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