Regex for 1 or 2 digits optional non-alphanumeric 2 known alphas

Question

I ve been bashing my head against the wall trying to do what should be a simple regex - I need to match  eg 12po where the 12 part could be one or two digits  then an optional non-alphanumeric like a   -   etc  then the string po   The eventual use is going to be in C  but I d like it to work in regular grep on the command line as well  I haven t got access to C   which doesn t help

User · Answer

0-9  1 2     -  po    Add any other allowable non-alphanumeric characters to the middle brackets to allow them to be parsed as well

User · Answer

0-9  0-9    A-Za-z0-9  po    You can test it here  http   www regextester com   To use this in C    Regex r   new Regex     0-9  0-9    A-Za-z0-9  po     if  r Match someText  Success         Do Something     Remember    is a useful symbol that means the parser takes the string literally  eg  you don t need to write    for one backslash

User · Answer

d 1 2   W   po     d defines a number and  1 2  means 1 or two of the expression before   W defines a non word character

[c#] Regex for 1 or 2 digits, optional non-alphanumeric, 2 known alphas

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