How do I do a case insensitive regular expression in Go?

Question

Now, of course, I could write my regular expression to handle both cases, such as regexp.Compile(\"[a-zA-Z]\"), but my regular expression is constructed from a

Answer 1

Use the i flag. Quoting the tip documentation:

Grouping:

(re)           numbered capturing group
(?Pre)   named & numbered capturing group
(?:re)         non-capturing group
(?flags)       set flags within current group; non-capturing
(?flags:re)    set flags during re; non-capturing

Flag syntax is xyz (set) or -xyz (clear) or xy-z (set xy, clear z). The flags are:

i              case-insensitive (default false)
m              multi-line mode: ^ and $ match begin/end line in addition to begin/end text (default false)
s              let . match \n (default false)
U              ungreedy: swap meaning of x* and x*?, x+ and x+?, etc (default false)