error454/gist:3229018

## gistfile1.md

      
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              gistfile1.md
            
          
    QR Code WiFi Scheme Regexs of Extreme Awesomeness

A few regular expressions to parse WIFI schemes such as:
WIFI:T:WEP;S:test;P:rainbows\;unicorns\:jedis\,ninjas\\ secure;;

Network Type

###Raw
(?<=T:)[a-zA-Z]+(?=;)
###expanded
(?<=T:)       #Match the prefix T: but exclude from capture
[a-zA-Z]+ #Any alpha character, 1 or more repetitions
(?=;)         #Match the suffix ; but exclude from capture
SSID

###Characters that are not allowed
? " $ \ [ ] +

###Characters that must be escaped
\ ; , :

###Raw
(?<=S:)((?:[^\;\?\"\$\[\\\]\+])|(?:\[\;,:]))+(?<!\;)(?=;)
###Java
(?<=S:)((?:[^\\;\\?\\\"\\$\\[\\\\\\]\\+])|(?:\\[\\;,:]))+(?<!\\;)(?=;)
###expanded
(?<=S:)                         #Match the prefix S: but exclude from capture
(                           #Choose from the following 2 choices
(?:[^\;\?\"\$\[\\\]\+]) #Anything that isn't one of the restricted characters
|                       #OR
(?:\[\;,:])           #An escaped special character
)+                          #1 or more repititions
(?<!\;)(?=;)                   #Match a ; only if there isn't a ; before it
Password

###Raw
(?<=P:)((?:\[\;,:])|(?:[^;]))+(?<!\;)(?=;)
###Java
(?<=P:)((?:\\[\\;,:])|(?:[^;]))+(?<!\\;)(?=;)
###expanded
(?<=P:)                 #Match the prefix S: but exclude from capture
(                   #Choose from the following 2 choices
(?:\[\;,:])   #An escaped special character
|               #OR
(?:[^;])        #Any character that isn't a ;
)+                  #1 or more repititions
(?<!\;)(?=;)           #Match a ; only if there isn't a ; before it