Regular Expressions 101

Pro

(?sm)applies the following effective flags to the remainder of the pattern: gms

s modifier: single line. Allows a dot to match line terminators

m modifier: multiline. Causes ^ and $ to match the start and end of each line, not only the start and end of the string

\Astart of string

.*?any character, repeated any number of times

Positive Lookahead(?=message)

messagethe literal text message (case sensitive)

Global pattern flags

g modifier: global. Finds all matches instead of stopping after the first

m modifier: multiline. Causes ^ and $ to match the start and end of each line, not only the start and end of the string

Detailed match information will be displayed here automatically.

25 tokens

Regular Expression

(?sm)\A.*?(?=message)

New

package grpc;

import "envoyproxy/protoc-gen-validate/validate/validate.proto";
import "google/api/annotations.proto";
import "google/protobuf/wrappers.proto";
import "protoc-gen-swagger/options/annotations.proto";

message Acc {
    message AccErr {
        enum Enum {
            UNKNOWN = 0;
            CASH = 1;
        }
    }
    string account_id = 1;
    string name = 3;
    string account_type = 4;
}

message Name {
    string firstname = 1;
    string lastname = 2;
}