# constant case
sysreq = tolower(sysreq)
# drop version information/comments for now
- sysreq = gsub('[\\([][^])]*[]\\)]','',sysreq)
+ sysreq = gsub('[[][^])]*[]]','',sysreq)
+ sysreq = gsub('\\([^)]*\\)','',sysreq)
+ sysreq = gsub('[[][^])]*[]]','',sysreq)
sysreq = gsub('version','',sysreq)
sysreq = gsub('from','',sysreq)
sysreq = gsub('[<>=]*[[:space:]]*[[:digit:]]+[[:digit:].+:~-]*','',sysreq)