>From f84b31cb1d7b16f4a890d03434003c224237f8f5 Mon Sep 17 00:00:00 2001
From: Frank Dittrich <frank_dittrich@hotmail.com>
Date: Fri, 20 Jul 2012 18:52:22 +0200
Subject: [PATCH 1/2] Define new [List.External:Repeats_*] sections

... with restricted character sets (instead of 0x20-0xff)

Repeats_digits: '0' - '9'
Repeats_lowercase: 'a' - 'z'
Repeats_printable_ASCII: ' ' - '~'

All of these sections as well as the original section
[List.External:Repeats] now include a new section
[List.External_base:Repeats] containing variable definitions and
the generate() function.
---
 run/john.conf |   60 ++++++++++++++++++++++++++++++++++++++++++++++----------
 1 files changed, 49 insertions(+), 11 deletions(-)

diff --git a/run/john.conf b/run/john.conf
index f17dcaf..d9e51c7 100644
--- a/run/john.conf
+++ b/run/john.conf
@@ -1208,19 +1208,9 @@ void restore()
 }
 
 # Try strings of repeated characters.
-[List.External:Repeats]
+[List.External_base:Repeats]
 int minlength, maxlength, minc, maxc, length, c;
 
-void init()
-{
-	minlength = 1;
-	maxlength = 72;
-	minc = 0x20;
-	maxc = 0xff;
-
-	length = minlength; c = minc;
-}
-
 void generate()
 {
 	int i;
@@ -1238,6 +1228,54 @@ void generate()
 		c = 0; // Will NUL out the next "word" and thus terminate
 }
 
+[List.External:Repeats]
+.include [List.External_base:Repeats]
+void init()
+{
+	minlength = 1;
+	maxlength = 72;
+	minc = 0x20;
+	maxc = 0xff;
+
+	length = minlength; c = minc;
+}
+
+[List.External:Repeats_digits]
+.include [List.External_base:Repeats]
+void init()
+{
+	minlength = 1;
+	maxlength = 72;
+	minc = '0';
+	maxc = '9';
+
+	length = minlength; c = minc;
+}
+
+[List.External:Repeats_lowercase]
+.include [List.External_base:Repeats]
+void init()
+{
+	minlength = 1;
+	maxlength = 72;
+	minc = 'a';
+	maxc = 'z';
+
+	length = minlength; c = minc;
+}
+
+[List.External:Repeats_printable_ASCII]
+.include [List.External_base:Repeats]
+void init()
+{
+	minlength = 1;
+	maxlength = 72;
+	minc = ' ';
+	maxc = '~';
+
+	length = minlength; c = minc;
+}
+
 # Generate candidate passwords from many small subsets of characters from a
 # much larger full character set.  This will test for passwords containing too
 # few different characters.  As currently implemented, this code will produce
-- 
1.7.7.6