RewriteEngine On
RewriteOptions MaxRedirects=1

RewriteCond %{REQUEST_FILENAME} -d
RewriteRule (.*) - [L]

# | If it ends with norw, then no rewrite

RewriteCond %{QUERY_STRING} norw$
RewriteRule .* - [L]

# |
# | If there's a src= query string then do 
# | a - pass through, which tricks mod_rewrite
# | into not calling itself again.
#
# | The [L] directive is misleading, mod_rewrite
# | just keeps getting called for each "new" query
# | which is the result of each rewrite.
# |
RewriteCond %{REQUEST_FILENAME} saShowCode.php
RewriteCond %{QUERY_STRING} ^src=.*$
RewriteRule (.*) - [L]

# | an similarly for our download
RewriteCond %{REQUEST_FILENAME} saDownloadCode.php
RewriteCond %{QUERY_STRING} ^src=.*$
RewriteRule (.*) - [L]
# ------

# |
# | Take any reference here into an invocation of
# | saShowCode to show it as beautiful source
# |
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule ^(.+)\.dl$ saInfrastructure/saShowCode.php?src=/src/$1&download=1 [L]
RewriteRule ^(.+)$ saInfrastructure/saShowCode.php?src=/src/$1 [L]


#EOF