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Groups > comp.os.linux.misc > #76258
| From | ram@zedat.fu-berlin.de (Stefan Ram) |
|---|---|
| Newsgroups | comp.os.linux.misc |
| Subject | Re: OT: Examples for teaching recursion in programming |
| Date | 2025-10-16 12:05 +0000 |
| Organization | Stefan Ram |
| Message-ID | <XML-20251016125246@ram.dialup.fu-berlin.de> (permalink) |
| References | (8 earlier) <20251013114536.00000ae5@gmail.com> <10cmkub$39hde$3@dont-email.me> <20251015083926.0000473b@gmail.com> <10cpdjj$1ru9$3@dont-email.me> <10cqcvd$8qkp$1@dont-email.me> |
Nuno Silva <nunojsilva@invalid.invalid> wrote or quoted:
>I mean, Fibonnaci can be explained and understood concisely, but for
>XML, JSON or JSONx, how simple can it get? (Well, maybe it actually can
>be used as an example in a way that takes out a lot of complexity?)
Let's start with something S-expression-like. S-expressions are used
in the real world, and are a bit simpler than XML. So, one could
use them for an example, with XML and JSON left for the exercises.
I have simplified S-expressions a bit more, to their bare bones,
and here is the Python 3.14 parser for this simplification:
source code:
def parse_recursive( source: str, start: int = 0 ):
expressions_found = []
i = start
while i < len( source ):
if source[ i ]== '<':
inner, j, expressions = parse_recursive( source, i + 1 )
expressions_found.extend( expression )
expression = '<' + inner + '>'
expressions_found.append( expression )
i = j + 1
elif source[ i ]== '>':
return source[ start: i ], i, expressions_found
else:
i += 1
return '', i, expressions_found
def find_expressions( source: str ):
_, _, results = parse_recursive( source )
return results
# Example usage
for r in find_expressions( "<abc<def<ghi>>>" ):
print( f"expression: {r}" )
, exampe input (as contained in the source code):
<abc<def<ghi>>>
, output:
expression: <ghi>
expression: <def<ghi>>
expression: <abc<def<ghi>>>
. Another example would be directory traversal or parsing arithmetic
expressions.
main.py
import re
import math
import operator
class scanner_class:
def __init__( self, source ):
self.source = source
self.position = 0
def check( self, set ):
if not self.position < len( self.source ): return None
next = self.source[ self.position ]
if next in set:
self.position += 1
return next
return None
def numeral( self ):
p = self.position
while self.position < len( self.source )and self.source[ self.position ] in "0123456789":
self.position += 1
return self.source[ p: self.position ]
ex = { '^' : operator.pow, '*': operator.mul, '/': operator.truediv,
'+': operator.add, '-': operator.sub }
left_associative = { '^' : 0, '*': 1, '/': 1, '+': 1, '-': 1 }
class parser_class:
def __init__( self, source ):
self.scanner = scanner_class( source )
def numeral( self ):
return self.scanner.numeral()
def primary( self ):
return float( self.numeral() )
def binop( self, op, next ):
result = next()
while sym := self.scanner.check( op ):
result = ex[ sym ]( result, ( next() if left_associative[ sym ] else self.binop( op, next )))
return result
def power( self ): return self.binop( "^", self.primary )
def product( self ): return self.binop( "*/", self.power )
def sum( self ): return self.binop( "+-", self.product )
def start( self ): return self.sum()
def evl( expr ):
return parser_class( expr ).start()
def check( expr, value ):
v = evl( expr )
w = float( value )
print( v, w, v == w )
check( "0", "0" )
check( "1", "1" )
check( "11", "11" )
check( "1+1", "2" )
check( "11+1", "12" )
check( "3-2", "1" )
check( "3*2", "6" )
check( "2^3", "8" )
check( "2^3-1", "7" )
check( "2^3/2", "4" )
check( "2^3^2", "512" )
check( "6+3*2^3+1", "31" )
transcript
0.0 0.0 True
1.0 1.0 True
11.0 11.0 True
2.0 2.0 True
12.0 12.0 True
1.0 1.0 True
6.0 6.0 True
8.0 8.0 True
7.0 7.0 True
4.0 4.0 True
512.0 512.0 True
31.0 31.0 True
Exercises:
- Add the output of sensible error message showing the position
of the error in the source code!
- Add more features, like floating point numerals or function
calls to the expression parser!
- Use the expression parser as the basis for a small programming
language!
- Write a parser for XML, starting with a subset of XML and then
gradually extending it!
- Write code to traverse a directory recursively to find filenames
matching a given regular expression!
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Warning - Serious 'sudo' Flaw Compromises Security c186282 <c186282@nnada.net> - 2025-10-10 01:30 -0400
Re: Warning - Serious 'sudo' Flaw Compromises Security Andy Burns <usenet@andyburns.uk> - 2025-10-10 08:20 +0100
Re: Warning - Serious 'sudo' Flaw Compromises Security Richard Kettlewell <invalid@invalid.invalid> - 2025-10-10 11:03 +0100
Re: Warning - Serious 'sudo' Flaw Compromises Security The Natural Philosopher <tnp@invalid.invalid> - 2025-10-10 11:42 +0100
Re: Warning - Serious 'sudo' Flaw Compromises Security c186282 <c186282@nnada.net> - 2025-10-11 02:15 -0400
Re: Warning - Serious 'sudo' Flaw Compromises Security The Natural Philosopher <tnp@invalid.invalid> - 2025-10-11 11:09 +0100
Re: Warning - Serious 'sudo' Flaw Compromises Security Richard Kettlewell <invalid@invalid.invalid> - 2025-10-11 11:57 +0100
Re: Warning - Serious 'sudo' Flaw Compromises Security The Natural Philosopher <tnp@invalid.invalid> - 2025-10-12 12:53 +0100
Re: Warning - Serious 'sudo' Flaw Compromises Security rbowman <bowman@montana.com> - 2025-10-12 17:50 +0000
Re: Warning - Serious 'sudo' Flaw Compromises Security c186282 <c186282@nnada.net> - 2025-10-11 21:30 -0400
Re: Warning - Serious 'sudo' Flaw Compromises Security The Natural Philosopher <tnp@invalid.invalid> - 2025-10-12 12:56 +0100
Re: Warning - Serious 'sudo' Flaw Compromises Security c186282 <c186282@nnada.net> - 2025-10-11 02:15 -0400
Re: Warning - Serious 'sudo' Flaw Compromises Security Marc Haber <mh+usenetspam1118@zugschl.us> - 2025-10-10 09:29 +0200
Re: Warning - Serious 'sudo' Flaw Compromises Security c186282 <c186282@nnada.net> - 2025-10-10 03:34 -0400
Re: Warning - Serious 'sudo' Flaw Compromises Security Marc Haber <mh+usenetspam1118@zugschl.us> - 2025-10-10 13:06 +0200
Re: Warning - Serious 'sudo' Flaw Compromises Security c186282 <c186282@nnada.net> - 2025-10-11 02:17 -0400
Re: Warning - Serious 'sudo' Flaw Compromises Security "Carlos E.R." <robin_listas@es.invalid> - 2025-10-10 21:42 +0200
Re: Warning - Serious 'sudo' Flaw Compromises Security Marc Haber <mh+usenetspam1118@zugschl.us> - 2025-10-10 23:02 +0200
Re: Warning - Serious 'sudo' Flaw Compromises Security c186282 <c186282@nnada.net> - 2025-10-11 02:42 -0400
Re: Warning - Serious 'sudo' Flaw Compromises Security rbowman <bowman@montana.com> - 2025-10-11 18:48 +0000
Re: Warning - Serious 'sudo' Flaw Compromises Security c186282 <c186282@nnada.net> - 2025-10-11 22:15 -0400
Re: Warning - Serious 'sudo' Flaw Compromises Security "Carlos E.R." <robin_listas@es.invalid> - 2025-10-12 23:08 +0200
Re: Warning - Serious 'sudo' Flaw Compromises Security apapmurray <apap.murray@mail.com> - 2025-10-11 14:26 +0100
Re: Warning - Serious 'sudo' Flaw Compromises Security c186282 <c186282@nnada.net> - 2025-10-13 03:07 -0400
Re: Warning - Serious 'sudo' Flaw Compromises Security The Natural Philosopher <tnp@invalid.invalid> - 2025-10-13 10:42 +0100
Re: Warning - Serious 'sudo' Flaw Compromises Security Pancho <Pancho.Jones@protonmail.com> - 2025-10-13 12:47 +0100
Re: Warning - Serious 'sudo' Flaw Compromises Security The Natural Philosopher <tnp@invalid.invalid> - 2025-10-13 16:34 +0100
Re: Warning - Serious 'sudo' Flaw Compromises Security Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2025-10-13 17:41 +0000
Re: Warning - Serious 'sudo' Flaw Compromises Security The Natural Philosopher <tnp@invalid.invalid> - 2025-10-13 19:07 +0100
Re: Warning - Serious 'sudo' Flaw Compromises Security Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2025-10-13 18:22 +0000
Re: Warning - Serious 'sudo' Flaw Compromises Security c186282 <c186282@nnada.net> - 2025-10-14 01:44 -0400
Re: Warning - Serious 'sudo' Flaw Compromises Security rbowman <bowman@montana.com> - 2025-10-14 06:36 +0000
Re: Warning - Serious 'sudo' Flaw Compromises Security The Natural Philosopher <tnp@invalid.invalid> - 2025-10-14 10:40 +0100
Re: Warning - Serious 'sudo' Flaw Compromises Security Lawrence D’Oliveiro <ldo@nz.invalid> - 2025-10-14 23:02 +0000
Re: Warning - Serious 'sudo' Flaw Compromises Security Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2025-10-14 23:31 +0000
Re: Warning - Serious 'sudo' Flaw Compromises Security Lawrence D’Oliveiro <ldo@nz.invalid> - 2025-10-15 01:25 +0000
Re: Warning - Serious 'sudo' Flaw Compromises Security c186282 <c186282@nnada.net> - 2025-10-14 22:57 -0400
Re: Warning - Serious 'sudo' Flaw Compromises Security Rich <rich@example.invalid> - 2025-10-17 16:13 +0000
Re: Warning - Serious 'sudo' Flaw Compromises Security c186282 <c186282@nnada.net> - 2025-10-17 22:55 -0400
Re: Warning - Serious 'sudo' Flaw Compromises Security rbowman <bowman@montana.com> - 2025-10-18 05:40 +0000
Re: Warning - Serious 'sudo' Flaw Compromises Security c186282 <c186282@nnada.net> - 2025-10-18 03:12 -0400
Re: Warning - Serious 'sudo' Flaw Compromises Security The Natural Philosopher <tnp@invalid.invalid> - 2025-10-18 11:16 +0100
Re: Warning - Serious 'sudo' Flaw Compromises Security Lawrence D’Oliveiro <ldo@nz.invalid> - 2025-10-18 21:54 +0000
Re: Warning - Serious 'sudo' Flaw Compromises Security c186282 <c186282@nnada.net> - 2025-10-19 03:32 -0400
Re: Warning - Serious 'sudo' Flaw Compromises Security Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2025-10-20 18:01 +0000
Re: Warning - Serious 'sudo' Flaw Compromises Security Lawrence D’Oliveiro <ldo@nz.invalid> - 2025-10-20 20:52 +0000
Re: Warning - Serious 'sudo' Flaw Compromises Security rbowman <bowman@montana.com> - 2025-10-21 02:25 +0000
Re: Warning - Serious 'sudo' Flaw Compromises Security c186282 <c186282@nnada.net> - 2025-10-21 00:47 -0400
Re: Warning - Serious 'sudo' Flaw Compromises Security The Natural Philosopher <tnp@invalid.invalid> - 2025-10-21 09:42 +0100
Re: Warning - Serious 'sudo' Flaw Compromises Security Lawrence D’Oliveiro <ldo@nz.invalid> - 2025-10-21 22:58 +0000
Re: Warning - Serious 'sudo' Flaw Compromises Security c186282 <c186282@nnada.net> - 2025-10-21 23:52 -0400
Re: Warning - Serious 'sudo' Flaw Compromises Security rbowman <bowman@montana.com> - 2025-10-22 05:31 +0000
Re: Warning - Serious 'sudo' Flaw Compromises Security c186282 <c186282@nnada.net> - 2025-10-22 01:57 -0400
Re: Warning - Serious 'sudo' Flaw Compromises Security The Natural Philosopher <tnp@invalid.invalid> - 2025-10-22 12:12 +0100
Re: Warning - Serious 'sudo' Flaw Compromises Security c186282 <c186282@nnada.net> - 2025-10-22 23:57 -0400
Re: Warning - Serious 'sudo' Flaw Compromises Security Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2025-10-23 04:06 +0000
Re: Warning - Serious 'sudo' Flaw Compromises Security Bobbie Sellers <bliss-sf4ever@dslextreme.com> - 2025-10-22 21:45 -0700
Re: Warning - Serious 'sudo' Flaw Compromises Security c186282 <c186282@nnada.net> - 2025-10-23 03:22 -0400
Re: Warning - Serious 'sudo' Flaw Compromises Security rbowman <bowman@montana.com> - 2025-10-23 19:30 +0000
Re: Warning - Serious 'sudo' Flaw Compromises Security The Natural Philosopher <tnp@invalid.invalid> - 2025-10-23 09:05 +0100
Re: Warning - Serious 'sudo' Flaw Compromises Security rbowman <bowman@montana.com> - 2025-10-23 19:35 +0000
Re: Warning - Serious 'sudo' Flaw Compromises Security The Natural Philosopher <tnp@invalid.invalid> - 2025-10-23 09:04 +0100
Re: Warning - Serious 'sudo' Flaw Compromises Security rbowman <bowman@montana.com> - 2025-10-23 19:16 +0000
Re: Warning - Serious 'sudo' Flaw Compromises Security rbowman <bowman@montana.com> - 2025-10-22 05:19 +0000
Re: Warning - Serious 'sudo' Flaw Compromises Security The Natural Philosopher <tnp@invalid.invalid> - 2025-10-22 12:39 +0100
Re: Warning - Serious 'sudo' Flaw Compromises Security Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2025-10-22 18:03 +0000
Re: Warning - Serious 'sudo' Flaw Compromises Security Bobbie Sellers <bliss-sf4ever@dslextreme.com> - 2025-10-22 15:27 -0700
Re: Warning - Serious 'sudo' Flaw Compromises Security c186282 <c186282@nnada.net> - 2025-10-21 22:42 -0400
Re: Warning - Serious 'sudo' Flaw Compromises Security rbowman <bowman@montana.com> - 2025-10-18 18:42 +0000
Re: Warning - Serious 'sudo' Flaw Compromises Security c186282 <c186282@nnada.net> - 2025-10-19 04:24 -0400
Re: Warning - Serious 'sudo' Flaw Compromises Security The Natural Philosopher <tnp@invalid.invalid> - 2025-10-19 11:34 +0100
Re: Warning - Serious 'sudo' Flaw Compromises Security The Natural Philosopher <tnp@invalid.invalid> - 2025-10-18 11:06 +0100
Re: Warning - Serious 'sudo' Flaw Compromises Security c186282 <c186282@nnada.net> - 2025-10-19 03:04 -0400
Re: Warning - Serious 'sudo' Flaw Compromises Security rbowman <bowman@montana.com> - 2025-10-19 19:33 +0000
Re: Warning - Serious 'sudo' Flaw Compromises Security c186282 <c186282@nnada.net> - 2025-10-20 01:40 -0400
Re: Warning - Serious 'sudo' Flaw Compromises Security The Natural Philosopher <tnp@invalid.invalid> - 2025-10-20 10:03 +0100
Re: Warning - Serious 'sudo' Flaw Compromises Security c186282 <c186282@nnada.net> - 2025-10-20 23:31 -0400
Re: Warning - Serious 'sudo' Flaw Compromises Security The Natural Philosopher <tnp@invalid.invalid> - 2025-10-21 09:28 +0100
Logic [Was: Warning - Serious 'sudo' Flaw Compromises Security] "Carlos E.R." <robin_listas@es.invalid> - 2025-10-18 20:12 +0200
Re: Logic [Was: Warning - Serious 'sudo' Flaw Compromises Security] c186282 <c186282@nnada.net> - 2025-10-19 04:16 -0400
Re: Logic [Was: Warning - Serious 'sudo' Flaw Compromises Security] "Carlos E.R." <robin_listas@es.invalid> - 2025-10-19 14:03 +0200
Re: Logic [Was: Warning - Serious 'sudo' Flaw Compromises Security] Nuno Silva <nunojsilva@invalid.invalid> - 2025-10-19 22:50 +0100
Re: Logic [Was: Warning - Serious 'sudo' Flaw Compromises Security] "Carlos E.R." <robin_listas@es.invalid> - 2025-10-20 00:18 +0200
Re: Logic [Was: Warning - Serious 'sudo' Flaw Compromises Security] Lawrence D’Oliveiro <ldo@nz.invalid> - 2025-10-20 01:57 +0000
Re: Logic [Was: Warning - Serious 'sudo' Flaw Compromises Security] rbowman <bowman@montana.com> - 2025-10-20 05:14 +0000
Re: Logic [Was: Warning - Serious 'sudo' Flaw Compromises Security] "Carlos E.R." <robin_listas@es.invalid> - 2025-10-20 10:18 +0200
Re: Logic [Was: Warning - Serious 'sudo' Flaw Compromises Security] c186282 <c186282@nnada.net> - 2025-10-20 02:10 -0400
Re: Logic [Was: Warning - Serious 'sudo' Flaw Compromises Security] Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2025-10-20 18:01 +0000
Re: Logic [Was: Warning - Serious 'sudo' Flaw Compromises Security] rbowman <bowman@montana.com> - 2025-10-20 04:57 +0000
Re: Warning - Serious 'sudo' Flaw Compromises Security rbowman <bowman@montana.com> - 2025-10-15 05:27 +0000
Re: Warning - Serious 'sudo' Flaw Compromises Security The Natural Philosopher <tnp@invalid.invalid> - 2025-10-15 12:18 +0100
Re: Warning - Serious 'sudo' Flaw Compromises Security c186282 <c186282@nnada.net> - 2025-10-16 01:03 -0400
Re: Warning - Serious 'sudo' Flaw Compromises Security Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2025-10-15 05:36 +0000
Re: Warning - Serious 'sudo' Flaw Compromises Security rbowman <bowman@montana.com> - 2025-10-15 05:23 +0000
Re: Warning - Serious 'sudo' Flaw Compromises Security rbowman <bowman@montana.com> - 2025-10-15 05:10 +0000
Re: Warning - Serious 'sudo' Flaw Compromises Security c186282 <c186282@nnada.net> - 2025-10-14 19:34 -0400
Re: Warning - Serious 'sudo' Flaw Compromises Security The Natural Philosopher <tnp@invalid.invalid> - 2025-10-15 12:24 +0100
Re: Warning - Serious 'sudo' Flaw Compromises Security rbowman <bowman@montana.com> - 2025-10-15 21:11 +0000
Re: Warning - Serious 'sudo' Flaw Compromises Security c186282 <c186282@nnada.net> - 2025-10-16 01:54 -0400
Re: Warning - Serious 'sudo' Flaw Compromises Security rbowman <bowman@montana.com> - 2025-10-16 07:02 +0000
Re: Warning - Serious 'sudo' Flaw Compromises Security Rich <rich@example.invalid> - 2025-10-17 16:17 +0000
Re: Warning - Serious 'sudo' Flaw Compromises Security rbowman <bowman@montana.com> - 2025-10-17 17:30 +0000
Re: Warning - Serious 'sudo' Flaw Compromises Security Lawrence D’Oliveiro <ldo@nz.invalid> - 2025-10-16 00:16 +0000
Re: Warning - Serious 'sudo' Flaw Compromises Security c186282 <c186282@nnada.net> - 2025-10-16 02:32 -0400
Re: Warning - Serious 'sudo' Flaw Compromises Security The Natural Philosopher <tnp@invalid.invalid> - 2025-10-16 11:55 +0100
Re: Warning - Serious 'sudo' Flaw Compromises Security c186282 <c186282@nnada.net> - 2025-10-16 01:19 -0400
Re: Warning - Serious 'sudo' Flaw Compromises Security The Natural Philosopher <tnp@invalid.invalid> - 2025-10-16 11:29 +0100
Re: Warning - Serious 'sudo' Flaw Compromises Security Lawrence D’Oliveiro <ldo@nz.invalid> - 2025-10-17 00:48 +0000
Re: Warning - Serious 'sudo' Flaw Compromises Security c186282 <c186282@nnada.net> - 2025-10-17 22:41 -0400
Re: Warning - Serious 'sudo' Flaw Compromises Security rbowman <bowman@montana.com> - 2025-10-18 05:29 +0000
Re: Warning - Serious 'sudo' Flaw Compromises Security c186282 <c186282@nnada.net> - 2025-10-18 02:45 -0400
Re: Warning - Serious 'sudo' Flaw Compromises Security The Natural Philosopher <tnp@invalid.invalid> - 2025-10-18 10:53 +0100
Re: Warning - Serious 'sudo' Flaw Compromises Security c186282 <c186282@nnada.net> - 2025-10-19 02:38 -0400
Re: Warning - Serious 'sudo' Flaw Compromises Security Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2025-10-18 17:39 +0000
Re: Warning - Serious 'sudo' Flaw Compromises Security Bobbie Sellers <bliss-sf4ever@dslextreme.com> - 2025-10-18 18:50 -0700
Re: Warning - Serious 'sudo' Flaw Compromises Security c186282 <c186282@nnada.net> - 2025-10-19 04:26 -0400
Re: Warning - Serious 'sudo' Flaw Compromises Security The Natural Philosopher <tnp@invalid.invalid> - 2025-10-19 11:37 +0100
Re: Warning - Serious 'sudo' Flaw Compromises Security c186282 <c186282@nnada.net> - 2025-10-19 03:52 -0400
Re: Warning - Serious 'sudo' Flaw Compromises Security The Natural Philosopher <tnp@invalid.invalid> - 2025-10-19 12:02 +0100
Re: Warning - Serious 'sudo' Flaw Compromises Security rbowman <bowman@montana.com> - 2025-10-18 18:31 +0000
Re: Warning - Serious 'sudo' Flaw Compromises Security Bobbie Sellers <bliss-sf4ever@dslextreme.com> - 2025-10-18 18:51 -0700
Re: Warning - Serious 'sudo' Flaw Compromises Security c186282 <c186282@nnada.net> - 2025-10-19 04:23 -0400
Re: Warning - Serious 'sudo' Flaw Compromises Security The Natural Philosopher <tnp@invalid.invalid> - 2025-10-19 11:31 +0100
Re: Warning - Serious 'sudo' Flaw Compromises Security The Natural Philosopher <tnp@invalid.invalid> - 2025-10-18 10:50 +0100
Re: Warning - Serious 'sudo' Flaw Compromises Security rbowman <bowman@montana.com> - 2025-10-18 18:40 +0000
Re: Warning - Serious 'sudo' Flaw Compromises Security The Natural Philosopher <tnp@invalid.invalid> - 2025-10-19 11:33 +0100
Re: Warning - Serious 'sudo' Flaw Compromises Security rbowman <bowman@montana.com> - 2025-10-19 19:10 +0000
Re: Warning - Serious 'sudo' Flaw Compromises Security c186282 <c186282@nnada.net> - 2025-10-20 01:10 -0400
Re: Warning - Serious 'sudo' Flaw Compromises Security The Natural Philosopher <tnp@invalid.invalid> - 2025-10-20 10:02 +0100
Re: Warning - Serious 'sudo' Flaw Compromises Security rbowman <bowman@montana.com> - 2025-10-20 18:55 +0000
Re: Warning - Serious 'sudo' Flaw Compromises Security Bobbie Sellers <bliss-sf4ever@dslextreme.com> - 2025-10-20 12:30 -0700
Re: Warning - Serious 'sudo' Flaw Compromises Security The Natural Philosopher <tnp@invalid.invalid> - 2025-10-20 20:57 +0100
Re: Warning - Serious 'sudo' Flaw Compromises Security c186282 <c186282@nnada.net> - 2025-10-21 00:31 -0400
Re: Warning - Serious 'sudo' Flaw Compromises Security The Natural Philosopher <tnp@invalid.invalid> - 2025-10-21 09:37 +0100
Re: Warning - Serious 'sudo' Flaw Compromises Security Pancho <Pancho.Jones@protonmail.com> - 2025-10-21 13:54 +0100
Re: Warning - Serious 'sudo' Flaw Compromises Security The Natural Philosopher <tnp@invalid.invalid> - 2025-10-21 15:46 +0100
Re: Warning - Serious 'sudo' Flaw Compromises Security Lawrence D’Oliveiro <ldo@nz.invalid> - 2025-10-21 23:02 +0000
Re: Warning - Serious 'sudo' Flaw Compromises Security c186282 <c186282@nnada.net> - 2025-10-22 00:13 -0400
Re: Warning - Serious 'sudo' Flaw Compromises Security rbowman <bowman@montana.com> - 2025-10-22 04:44 +0000
Re: Warning - Serious 'sudo' Flaw Compromises Security c186282 <c186282@nnada.net> - 2025-10-22 01:49 -0400
Re: Warning - Serious 'sudo' Flaw Compromises Security The Natural Philosopher <tnp@invalid.invalid> - 2025-10-22 12:35 +0100
Re: Warning - Serious 'sudo' Flaw Compromises Security The Natural Philosopher <tnp@invalid.invalid> - 2025-10-22 12:35 +0100
Re: Warning - Serious 'sudo' Flaw Compromises Security Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2025-10-22 18:03 +0000
Re: Warning - Serious 'sudo' Flaw Compromises Security Pancho <Pancho.Jones@protonmail.com> - 2025-10-22 14:50 +0100
Re: Warning - Serious 'sudo' Flaw Compromises Security The Natural Philosopher <tnp@invalid.invalid> - 2025-10-22 15:01 +0100
Re: Warning - Serious 'sudo' Flaw Compromises Security Lawrence D’Oliveiro <ldo@nz.invalid> - 2025-10-22 21:50 +0000
Re: Warning - Serious 'sudo' Flaw Compromises Security Pancho <Pancho.Jones@protonmail.com> - 2025-10-23 09:43 +0100
Re: Warning - Serious 'sudo' Flaw Compromises Security The Natural Philosopher <tnp@invalid.invalid> - 2025-10-23 18:56 +0100
Re: Warning - Serious 'sudo' Flaw Compromises Security c186282 <c186282@nnada.net> - 2025-10-23 00:32 -0400
Re: Warning - Serious 'sudo' Flaw Compromises Security The Natural Philosopher <tnp@invalid.invalid> - 2025-10-23 09:11 +0100
Re: Warning - Serious 'sudo' Flaw Compromises Security c186282 <c186282@nnada.net> - 2025-10-21 23:17 -0400
Re: Warning - Serious 'sudo' Flaw Compromises Security The Natural Philosopher <tnp@invalid.invalid> - 2025-10-22 11:58 +0100
Re: Warning - Serious 'sudo' Flaw Compromises Security c186282 <c186282@nnada.net> - 2025-10-21 22:22 -0400
Re: Warning - Serious 'sudo' Flaw Compromises Security rbowman <bowman@montana.com> - 2025-10-22 04:36 +0000
Re: Warning - Serious 'sudo' Flaw Compromises Security c186282 <c186282@nnada.net> - 2025-10-22 01:36 -0400
Re: Warning - Serious 'sudo' Flaw Compromises Security The Natural Philosopher <tnp@invalid.invalid> - 2025-10-22 11:42 +0100
Re: Warning - Serious 'sudo' Flaw Compromises Security c186282 <c186282@nnada.net> - 2025-10-21 00:06 -0400
Re: Warning - Serious 'sudo' Flaw Compromises Security The Natural Philosopher <tnp@invalid.invalid> - 2025-10-20 20:56 +0100
Re: Warning - Serious 'sudo' Flaw Compromises Security rbowman <bowman@montana.com> - 2025-10-21 02:45 +0000
Re: Warning - Serious 'sudo' Flaw Compromises Security c186282 <c186282@nnada.net> - 2025-10-21 01:09 -0400
Re: Warning - Serious 'sudo' Flaw Compromises Security rbowman <bowman@montana.com> - 2025-10-21 19:13 +0000
Re: Warning - Serious 'sudo' Flaw Compromises Security The Natural Philosopher <tnp@invalid.invalid> - 2025-10-22 11:38 +0100
Re: Warning - Serious 'sudo' Flaw Compromises Security Lawrence D’Oliveiro <ldo@nz.invalid> - 2025-10-22 21:49 +0000
Re: Warning - Serious 'sudo' Flaw Compromises Security c186282 <c186282@nnada.net> - 2025-10-22 23:20 -0400
Re: Warning - Serious 'sudo' Flaw Compromises Security c186282 <c186282@nnada.net> - 2025-10-19 02:37 -0400
Re: Warning - Serious 'sudo' Flaw Compromises Security The Natural Philosopher <tnp@invalid.invalid> - 2025-10-19 11:53 +0100
Re: Warning - Serious 'sudo' Flaw Compromises Security The Natural Philosopher <tnp@invalid.invalid> - 2025-10-18 10:47 +0100
Re: Warning - Serious 'sudo' Flaw Compromises Security c186282 <c186282@nnada.net> - 2025-10-19 02:35 -0400
Re: Warning - Serious 'sudo' Flaw Compromises Security The Natural Philosopher <tnp@invalid.invalid> - 2025-10-19 11:49 +0100
Re: Warning - Serious 'sudo' Flaw Compromises Security Lawrence D’Oliveiro <ldo@nz.invalid> - 2025-10-20 01:59 +0000
Re: Warning - Serious 'sudo' Flaw Compromises Security c186282 <c186282@nnada.net> - 2025-10-20 02:28 -0400
Re: Warning - Serious 'sudo' Flaw Compromises Security Rich <rich@example.invalid> - 2025-10-17 16:19 +0000
Re: Warning - Serious 'sudo' Flaw Compromises Security ram@zedat.fu-berlin.de (Stefan Ram) - 2025-10-17 18:03 +0000
Re: Warning - Serious 'sudo' Flaw Compromises Security rbowman <bowman@montana.com> - 2025-10-17 22:07 +0000
Re: Warning - Serious 'sudo' Flaw Compromises Security Bobbie Sellers <bliss-sf4ever@dslextreme.com> - 2025-10-17 17:57 -0700
Re: Warning - Serious 'sudo' Flaw Compromises Security The Natural Philosopher <tnp@invalid.invalid> - 2025-10-18 10:44 +0100
Re: Warning - Serious 'sudo' Flaw Compromises Security c186282 <c186282@nnada.net> - 2025-10-19 02:15 -0400
Re: Warning - Serious 'sudo' Flaw Compromises Security The Natural Philosopher <tnp@invalid.invalid> - 2025-10-19 11:39 +0100
Re: Warning - Serious 'sudo' Flaw Compromises Security c186282 <c186282@nnada.net> - 2025-10-17 22:52 -0400
Re: Warning - Serious 'sudo' Flaw Compromises Security The Natural Philosopher <tnp@invalid.invalid> - 2025-10-18 11:02 +0100
Re: Warning - Serious 'sudo' Flaw Compromises Security c186282 <c186282@nnada.net> - 2025-10-19 02:50 -0400
Re: Warning - Serious 'sudo' Flaw Compromises Security The Natural Philosopher <tnp@invalid.invalid> - 2025-10-19 11:57 +0100
Re: Warning - Serious 'sudo' Flaw Compromises Security John Ames <commodorejohn@gmail.com> - 2025-10-13 11:45 -0700
Recursion and Fibonnaci (was: Re: Warning - Serious 'sudo' Flaw Compromises Security) Nuno Silva <nunojsilva@invalid.invalid> - 2025-10-13 23:26 +0100
Re: Recursion and Fibonnaci Pancho <Pancho.Jones@protonmail.com> - 2025-10-14 00:13 +0100
Re: Warning - Serious 'sudo' Flaw Compromises Security rbowman <bowman@montana.com> - 2025-10-14 00:13 +0000
Re: Warning - Serious 'sudo' Flaw Compromises Security The Natural Philosopher <tnp@invalid.invalid> - 2025-10-14 10:18 +0100
Re: Warning - Serious 'sudo' Flaw Compromises Security Pancho <Pancho.Jones@protonmail.com> - 2025-10-14 10:31 +0100
Re: Warning - Serious 'sudo' Flaw Compromises Security The Natural Philosopher <tnp@invalid.invalid> - 2025-10-14 11:08 +0100
Re: Warning - Serious 'sudo' Flaw Compromises Security rbowman <bowman@montana.com> - 2025-10-14 19:02 +0000
Re: Warning - Serious 'sudo' Flaw Compromises Security c186282 <c186282@nnada.net> - 2025-10-14 21:46 -0400
Re: Warning - Serious 'sudo' Flaw Compromises Security rbowman <bowman@montana.com> - 2025-10-15 04:46 +0000
Re: Warning - Serious 'sudo' Flaw Compromises Security Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2025-10-15 05:36 +0000
Re: Warning - Serious 'sudo' Flaw Compromises Security The Natural Philosopher <tnp@invalid.invalid> - 2025-10-15 12:13 +0100
Re: Warning - Serious 'sudo' Flaw Compromises Security rbowman <bowman@montana.com> - 2025-10-15 21:07 +0000
Re: Warning - Serious 'sudo' Flaw Compromises Security Lawrence D’Oliveiro <ldo@nz.invalid> - 2025-10-14 23:11 +0000
Re: Warning - Serious 'sudo' Flaw Compromises Security rbowman <bowman@montana.com> - 2025-10-14 18:50 +0000
Re: Warning - Serious 'sudo' Flaw Compromises Security The Natural Philosopher <tnp@invalid.invalid> - 2025-10-15 12:13 +0100
Re: Warning - Serious 'sudo' Flaw Compromises Security rbowman <bowman@montana.com> - 2025-10-15 21:14 +0000
Re: Warning - Serious 'sudo' Flaw Compromises Security c186282 <c186282@nnada.net> - 2025-10-16 02:23 -0400
Re: Warning - Serious 'sudo' Flaw Compromises Security Lawrence D’Oliveiro <ldo@nz.invalid> - 2025-10-16 00:21 +0000
Re: Warning - Serious 'sudo' Flaw Compromises Security c186282 <c186282@nnada.net> - 2025-10-16 02:39 -0400
Re: Warning - Serious 'sudo' Flaw Compromises Security rbowman <bowman@montana.com> - 2025-10-16 07:15 +0000
Re: Warning - Serious 'sudo' Flaw Compromises Security rbowman <bowman@montana.com> - 2025-10-16 07:12 +0000
Re: Warning - Serious 'sudo' Flaw Compromises Security Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2025-10-16 18:43 +0000
Re: Warning - Serious 'sudo' Flaw Compromises Security Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2025-10-14 17:20 +0000
Re: Warning - Serious 'sudo' Flaw Compromises Security The Natural Philosopher <tnp@invalid.invalid> - 2025-10-15 12:08 +0100
Re: Warning - Serious 'sudo' Flaw Compromises Security rbowman <bowman@montana.com> - 2025-10-14 18:31 +0000
Computer Science (was: Re: Warning - Serious 'sudo' Flaw Compromises Security) Nuno Silva <nunojsilva@invalid.invalid> - 2025-10-14 23:27 +0100
Re: Computer Science (was: Re: Warning - Serious 'sudo' Flaw Compromises Security) rbowman <bowman@montana.com> - 2025-10-15 04:40 +0000
Re: Computer Science (was: Re: Warning - Serious 'sudo' Flaw Compromises Security) Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2025-10-15 05:36 +0000
Re: Warning - Serious 'sudo' Flaw Compromises Security c186282 <c186282@nnada.net> - 2025-10-14 21:29 -0400
Re: Warning - Serious 'sudo' Flaw Compromises Security Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2025-10-15 05:36 +0000
Re: Warning - Serious 'sudo' Flaw Compromises Security c186282 <c186282@nnada.net> - 2025-10-15 03:41 -0400
Re: Warning - Serious 'sudo' Flaw Compromises Security The Natural Philosopher <tnp@invalid.invalid> - 2025-10-15 12:33 +0100
Re: Warning - Serious 'sudo' Flaw Compromises Security Lawrence D’Oliveiro <ldo@nz.invalid> - 2025-10-16 00:23 +0000
Re: Warning - Serious 'sudo' Flaw Compromises Security c186282 <c186282@nnada.net> - 2025-10-16 01:31 -0400
Re: Warning - Serious 'sudo' Flaw Compromises Security rbowman <bowman@montana.com> - 2025-10-16 07:17 +0000
Re: Warning - Serious 'sudo' Flaw Compromises Security The Natural Philosopher <tnp@invalid.invalid> - 2025-10-16 11:54 +0100
Re: Warning - Serious 'sudo' Flaw Compromises Security Lawrence D’Oliveiro <ldo@nz.invalid> - 2025-10-17 00:41 +0000
Re: Warning - Serious 'sudo' Flaw Compromises Security rbowman <bowman@montana.com> - 2025-10-15 05:42 +0000
Re: Warning - Serious 'sudo' Flaw Compromises Security Lawrence D’Oliveiro <ldo@nz.invalid> - 2025-10-14 23:04 +0000
Re: Warning - Serious 'sudo' Flaw Compromises Security John Ames <commodorejohn@gmail.com> - 2025-10-15 08:39 -0700
Re: Warning - Serious 'sudo' Flaw Compromises Security Lawrence D’Oliveiro <ldo@nz.invalid> - 2025-10-16 00:17 +0000
Re: Warning - Serious 'sudo' Flaw Compromises Security c186282 <c186282@nnada.net> - 2025-10-16 02:36 -0400
Re: Warning - Serious 'sudo' Flaw Compromises Security rbowman <bowman@montana.com> - 2025-10-16 06:57 +0000
OT: Examples for teaching recursion in programming (was: Re: Warning - Serious 'sudo' Flaw Compromises Security) Nuno Silva <nunojsilva@invalid.invalid> - 2025-10-16 10:13 +0100
Re: OT: Examples for teaching recursion in programming ram@zedat.fu-berlin.de (Stefan Ram) - 2025-10-16 12:05 +0000
Re: OT: Examples for teaching recursion in programming ram@zedat.fu-berlin.de (Stefan Ram) - 2025-10-16 23:00 +0000
Re: OT: Examples for teaching recursion in programming Lawrence D’Oliveiro <ldo@nz.invalid> - 2025-10-17 00:43 +0000
Re: OT: Examples for teaching recursion in programming Richard Kettlewell <invalid@invalid.invalid> - 2025-10-16 17:42 +0100
Re: OT: Examples for teaching recursion in programming (was: Re: Warning - Serious 'sudo' Flaw Compromises Security) John Ames <commodorejohn@gmail.com> - 2025-10-16 15:47 -0700
GOTO (was: Re: Warning - Serious 'sudo' Flaw Compromises Security) Nuno Silva <nunojsilva@invalid.invalid> - 2025-10-13 23:48 +0100
Re: GOTO (was: Re: Warning - Serious 'sudo' Flaw Compromises Security) rbowman <bowman@montana.com> - 2025-10-14 00:30 +0000
Re: GOTO c186282 <c186282@nnada.net> - 2025-10-14 01:19 -0400
Re: GOTO The Natural Philosopher <tnp@invalid.invalid> - 2025-10-14 10:31 +0100
Re: GOTO Pancho <Pancho.Jones@protonmail.com> - 2025-10-14 08:21 +0100
Re: GOTO The Natural Philosopher <tnp@invalid.invalid> - 2025-10-14 10:34 +0100
Re: GOTO c186282 <c186282@nnada.net> - 2025-10-14 20:57 -0400
Re: GOTO The Natural Philosopher <tnp@invalid.invalid> - 2025-10-14 10:29 +0100
Re: GOTO The Natural Philosopher <tnp@invalid.invalid> - 2025-10-14 10:21 +0100
Re: GOTO Nuno Silva <nunojsilva@invalid.invalid> - 2025-10-14 11:42 +0100
Re: GOTO The Natural Philosopher <tnp@invalid.invalid> - 2025-10-14 13:02 +0100
Re: GOTO rbowman <bowman@montana.com> - 2025-10-14 19:08 +0000
Re: GOTO Nuno Silva <nunojsilva@invalid.invalid> - 2025-10-14 23:20 +0100
Re: GOTO rbowman <bowman@montana.com> - 2025-10-15 05:53 +0000
Re: GOTO The Natural Philosopher <tnp@invalid.invalid> - 2025-10-15 12:16 +0100
Re: GOTO Nuno Silva <nunojsilva@invalid.invalid> - 2025-10-15 15:21 +0100
Re: GOTO Lawrence D’Oliveiro <ldo@nz.invalid> - 2025-10-16 00:25 +0000
Re: Warning - Serious 'sudo' Flaw Compromises Security Lawrence D’Oliveiro <ldo@nz.invalid> - 2025-10-14 22:58 +0000
Re: Warning - Serious 'sudo' Flaw Compromises Security Lawrence D’Oliveiro <ldo@nz.invalid> - 2025-10-14 23:09 +0000
Re: Warning - Serious 'sudo' Flaw Compromises Security Lawrence D’Oliveiro <ldo@nz.invalid> - 2025-10-14 22:37 +0000
Re: Warning - Serious 'sudo' Flaw Compromises Security vallor <vallor@vallor.earth> - 2025-10-14 23:41 +0000
Re: Warning - Serious 'sudo' Flaw Compromises Security c186282 <c186282@nnada.net> - 2025-10-15 00:15 -0400
Re: Warning - Serious 'sudo' Flaw Compromises Security vallor <vallor@vallor.earth> - 2025-10-15 04:32 +0000
Re: Warning - Serious 'sudo' Flaw Compromises Security The Natural Philosopher <tnp@invalid.invalid> - 2025-10-15 12:29 +0100
Re: Warning - Serious 'sudo' Flaw Compromises Security c186282 <c186282@nnada.net> - 2025-10-16 01:23 -0400
Re: Warning - Serious 'sudo' Flaw Compromises Security The Natural Philosopher <tnp@invalid.invalid> - 2025-10-16 11:38 +0100
Re: Warning - Serious 'sudo' Flaw Compromises Security rbowman <bowman@montana.com> - 2025-10-15 05:04 +0000
Re: Warning - Serious 'sudo' Flaw Compromises Security The Natural Philosopher <tnp@invalid.invalid> - 2025-10-15 12:30 +0100
Re: Warning - Serious 'sudo' Flaw Compromises Security "Carlos E.R." <robin_listas@es.invalid> - 2025-10-16 21:53 +0200
Re: Warning - Serious 'sudo' Flaw Compromises Security Lawrence D’Oliveiro <ldo@nz.invalid> - 2025-10-17 00:48 +0000
Re: Warning - Serious 'sudo' Flaw Compromises Security "Carlos E.R." <robin_listas@es.invalid> - 2025-10-17 12:56 +0200
Re: Warning - Serious 'sudo' Flaw Compromises Security The Natural Philosopher <tnp@invalid.invalid> - 2025-10-17 08:22 +0100
Re: Warning - Serious 'sudo' Flaw Compromises Security The Natural Philosopher <tnp@invalid.invalid> - 2025-10-15 12:26 +0100
Re: Warning - Serious 'sudo' Flaw Compromises Security c186282 <c186282@nnada.net> - 2025-10-16 01:22 -0400
Re: Warning - Serious 'sudo' Flaw Compromises Security Marc Haber <mh+usenetspam1118@zugschl.us> - 2025-10-16 08:11 +0200
Re: Warning - Serious 'sudo' Flaw Compromises Security Lawrence D’Oliveiro <ldo@nz.invalid> - 2025-10-16 06:53 +0000
Re: Warning - Serious 'sudo' Flaw Compromises Security Marc Haber <mh+usenetspam1118@zugschl.us> - 2025-10-16 08:56 +0200
Re: Warning - Serious 'sudo' Flaw Compromises Security c186282 <c186282@nnada.net> - 2025-10-16 03:04 -0400
Re: Warning - Serious 'sudo' Flaw Compromises Security c186282 <c186282@nnada.net> - 2025-10-16 03:03 -0400
Re: Warning - Serious 'sudo' Flaw Compromises Security rbowman <bowman@montana.com> - 2025-10-16 07:08 +0000
Re: Warning - Serious 'sudo' Flaw Compromises Security The Natural Philosopher <tnp@invalid.invalid> - 2025-10-16 11:37 +0100
Re: Warning - Serious 'sudo' Flaw Compromises Security Marc Haber <mh+usenetspam1118@zugschl.us> - 2025-10-16 12:39 +0200
Re: Warning - Serious 'sudo' Flaw Compromises Security The Natural Philosopher <tnp@invalid.invalid> - 2025-10-16 11:57 +0100
Re: Warning - Serious 'sudo' Flaw Compromises Security Marc Haber <mh+usenetspam1118@zugschl.us> - 2025-10-16 15:31 +0200
Re: Warning - Serious 'sudo' Flaw Compromises Security Nuno Silva <nunojsilva@invalid.invalid> - 2025-10-16 10:25 +0100
Re: Warning - Serious 'sudo' Flaw Compromises Security The Natural Philosopher <tnp@invalid.invalid> - 2025-10-16 11:34 +0100
Re: Warning - Serious 'sudo' Flaw Compromises Security Marc Haber <mh+usenetspam1118@zugschl.us> - 2025-10-16 12:40 +0200
Re: Warning - Serious 'sudo' Flaw Compromises Security Richard Kettlewell <invalid@invalid.invalid> - 2025-10-15 18:11 +0100
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