Bump the version to 0.7.13.

Sync the examples section, refer to RFC 4155 for the mbox mailbox
format, and add URLs to Gitea and Github.

Makefile.am

@@ -1,2 +1,2 @@
 SUBDIRS = doc src
-EXTRA_DIST = contrib COPYING.md INSTALL.md NEWS.md README.md TODO.md
+EXTRA_DIST = contrib COPYING.md INSTALL.md NEWS.md README.md TODO.md AUTHORS.md

NEWS.md

@@ -1,5 +1,12 @@
 # Changes of mboxgrep
 
+## Changes in 0.7.13
+
+- Improve the readability of this file.
+- Failure to lock a file (mbox) is now a fatal error.
+- Fix Autoconf on Windows.
+- Code refactoring, mostly of mbox-related functions.
+
 ## Changes in 0.7.12a
 
 - Fix Automake macros to include the license file and others.

configure.ac

@@ -1,5 +1,5 @@
 #  mboxgrep - scan mailbox for messages matching a regular expression
-#  Copyright (C) 2000 - 2003, 2023  Daniel Spiljar
+#  Copyright (C) 2000 - 2003, 2023 - 2024  Daniel Spiljar
 #
 #  Mboxgrep is free software; you can redistribute it and/or modify it 
 #  under the terms of the GNU General Public License as published by
@@ -18,7 +18,7 @@
 # Process this file with autoconf to produce a configure script.
 
 # Yawn.
-AC_INIT([mboxgrep], [0.7.12a], [dspiljar@datatipp.se], [mboxgrep], [https://www.mboxgrep.org/])
+AC_INIT([mboxgrep], [0.7.13], [dspiljar@datatipp.se], [mboxgrep], [https://www.mboxgrep.org/])
 #AM_INIT_AUTOMAKE
 AM_INIT_AUTOMAKE([foreign])
 AC_LANG([C])

doc/mboxgrep.1

@@ -10,7 +10,7 @@ mboxgrep \- displays email messages matching a pattern
 This manual page refers to
 .B mboxgrep
 version
-.BR 0.7.12a .
+.BR 0.7.13 .
 .PP
 .B mboxgrep
 scans a

doc/mboxgrep.info

@@ -9,10 +9,10 @@ END-INFO-DIR-ENTRY
 
 File: mboxgrep.info,  Node: Top,  Up: (dir)
 
-This file documents 'mboxgrep' (version 0.7.12a), a mailbox scanning
+This file documents 'mboxgrep' (version 0.7.13), a mailbox scanning
 utility.
 
-   Copyright (C) 2000, 2001, 2002, 2003 Daniel Spiljar
+   Copyright (C) 2000 - 2003, 2024 Daniel Spiljar
 
 * Menu:
 
@@ -250,17 +250,17 @@ Sleep well, little friend.
 
 Tag Table:
 Node: Top197
-Node: Introduction597
-Node: Invoking1466
-Node: Miscellaneous1828
-Node: File locking2113
-Node: Regexp selection2750
-Node: Output control3302
-Node: Search scope selection4342
-Node: Mailbox type selection4583
-Node: Examples4904
-Node: Bugs5728
-Node: To Vicky6146
+Node: Introduction591
+Node: Invoking1460
+Node: Miscellaneous1822
+Node: File locking2107
+Node: Regexp selection2744
+Node: Output control3296
+Node: Search scope selection4336
+Node: Mailbox type selection4577
+Node: Examples4898
+Node: Bugs5722
+Node: To Vicky6140
 
 End Tag Table
 

doc/mboxgrep.texi

@@ -5,7 +5,7 @@
 @setchapternewpage odd
 
 @set EDITION 0.7
-@set VERSION 0.7.12a
+@set VERSION 0.7.13
 @set UPDATED 23 September 2024
 
 @dircategory Mail

src/mboxgrep.h

@@ -1,6 +1,6 @@
 /*
   mboxgrep - scan mailbox for messages matching a regular expression
-  Copyright (C) 2000 - 2003, 2006, 2023  Daniel Spiljar
+  Copyright (C) 2000 - 2003, 2006, 2023 - 2024 Daniel Spiljar
 
   Mboxgrep is free software; you can redistribute it and/or modify it 
   under the terms of the GNU General Public License as published by
@@ -21,8 +21,8 @@
 #define MBOXGREP_H
 
 #define APPNAME "mboxgrep"
-#define VERSION "0.7.12a"
-#define BUGREPORT_ADDR "dspiljar AT datatipp.se"
+#define VERSION "0.7.13"
+#define BUGREPORT_ADDR "dspiljar@datatipp.se"
 
 #define HOST_NAME_SIZE 256