RewriteEngine On

# page 
RewriteRule ^([a-zA-Z0-9_]+)/([[:digit:]]+)page$ ./index.php?mid=$1&page=$2 [L]

# administrator page
RewriteRule ^admin$ ./index.php?module=admin [L]

# document permanent link
RewriteRule ^([[:digit:]]+)$ ./index.php?document_srl=$1 [L]

# document + act permanent link
RewriteRule ^([[:digit:]]+)/([a-zA-Z0-9_]+)$ ./index.php?document_srl=$1&act=$2 [L]

# mid + document permanent link
RewriteRule ^([a-zA-Z0-9_]+)/([[:digit:]]+)$ ./index.php?mid=$1&document_srl=$2 [L]

# mid + act permanent link
RewriteRule ^([a-zA-Z0-9_]+)/([a-zA-Z0-9_]+)$ ./index.php?mid=$1&act=$2 [L]

# mid + page permanent link
RewriteRule ^([a-zA-Z0-9_]+)/page/([[:digit:]]+)$ ./index.php?mid=$1&page=$2 [L]

# mid + category permanent link
RewriteRule ^([a-zA-Z0-9_]+)/category/([[:digit:]]+)$ ./index.php?mid=$1&category=$2 [L]

# mid + category + page
RewriteRule ^([a-zA-Z0-9_]+)/category/([[:digit:]]+)/page/([[:digit:]]+)$ ./index.php?mid=$1&category=$2&page=$3 [L]

# mid + search target regdate (year+month)
RewriteRule ^([a-zA-Z0-9_]+)/([[:digit:]]+){0,4}/([[:digit:]]+){0,2}$ ./index.php?mid=$1&search_target=regdate&search_keyword=$2$3 [L]

# mid + search target regdate (year+month+day)
RewriteRule ^([a-zA-Z0-9_]+)/([[:digit:]]+){0,4}/([[:digit:]]+){0,2}/([[:digit:]]+){0,2}$ ./index.php?mid=$1&search_target=regdate&search_keyword=$2$3$4 [L]

# mid + search target tag
RewriteRule ^([a-zA-Z0-9_]+)/tag/(.*)$ ./index.php?mid=$1&search_target=tag&search_keyword=$2 [L]

# mid + search target writer
RewriteRule ^([a-zA-Z0-9_]+)/writer/(.*)$ ./index.php?mid=$1&search_target=nick_name&search_keyword=$2 [L]

# module permanent link
RewriteRule ^([a-zA-Z0-9_]+)(/){0,1}$ ./index.php?mid=$1 [L]