Dokuwiki odd behaviour with <code> and <code text> syntax parser

July 30, 2012

• applications
• dokuwiki
• linux
• iptables
• problems

Compare <code> and <code text> blocks:

<code>
*filter

# This will allow all loopback (lo0) traffic and drop all traffic to 127/8
# that does not use lo0
-A INPUT -i lo -j ACCEPT
-A INPUT ! -i lo -d 127.0.0.0/8 -j REJECT

#  This accepts all already established connections
-A INPUT -m state --state ESTABLISHED,RELATED -j ACCEPT

# This allows all outbound traffic
-A OUTPUT -j ACCEPT
</code>

<code text>
*filter

# This will allow all loopback (lo0) traffic and drop all traffic to 127/8
# that does not use lo0
-A INPUT -i lo -j ACCEPT
-A INPUT ! -i lo -d 127.0.0.0/8 -j REJECT

#  This accepts all already established connections
-A INPUT -m state --state ESTABLISHED,RELATED -j ACCEPT

# This allows all outbound traffic
-A OUTPUT -j ACCEPT
</code>

In dokuwiki text formatting option adds single spaces in the blank lines. Not helpful in the case of iptables rules files, where these spaces break the parser…