syntax regex package

[Pietro]

Hi all,

I am trying to solve the problem of automatically translating a raft of regexes which were originally intended for GNU sed but that I'd like to run using GoLang, if feasible.

I could not find any syntax options/settings for the regex package which I am assuming is quite strict in its syntax, PCRE or GNULib have options that can change some parts of the syntax.

I am wondering if I am the first one that met this problem or if ready to go solutions are available.

Thanks,

P.

[Kurtis Rader]

On Fri, Jun 18, 2021 at 2:34 PM Pietro <pietro....@cognitivecredit.com> wrote:

I am trying to solve the problem of automatically translating a raft of regexes which were originally intended for GNU sed but that I'd like to run using GoLang, if feasible.

I could not find any syntax options/settings for the regex package which I am assuming is quite strict in its syntax, PCRE or GNULib have options that can change some parts of the syntax.

See https://golang.org/pkg/regexp/#CompilePOSIX and https://github.com/google/re2/wiki/Syntax. If your sed expressions are in BRE form it's straightforward to translate them to ERE form. It would not surprise me if someone has already written a tool to translate BRE/ERE syntax to Go's RE2 syntax but I'm not aware of any such tool.

--

Kurtis Rader

Caretaker of the exceptional canines Junior and Hank

[Pietro Paolini]

Thanks for answering - if I am getting this right this is actually pretty straightforward and it seems to be only a business concerning the escaping/unescaping of some characters '|(){}?+' if I am getting this right, so far it's working.