regex - Match lines with possible preceding whitespaces -


in emacs, want use regex match lines such as

list of symbols  list of symbols    list of symbols

and not match lines begin digit or ( (with 0 or more preceding white spaces) such as

1. arithmetic , algebra  1. arithmetic , algebra (a) powers  (a) powers

but either ^ *[^[:digit:](] or ^[[:space:]]*[^[:digit:](] can match

 1. arithmetic , algebra  (a) powers

where there space @ beginning of each line.

i wonder wrong? thanks.

you can reduce matching lines don't start digit
or open parenthesis.

^[^[:digit:](]


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