use strict;
my $str = 'export const CJS_SYNTAX_REGEX: RegExp = /pattern/gm;export const IGNORE_PATTERNS: string[] = [];
export declare const RESOLVE_EXTENSIONS: string[]
export enum Snack{}
export const enum Snack {}
export interface User {}
export class House {}
export declare abstract class House extends Building {}
export abstract class House {}
export async function run() {}
export async function* run() {}
export function foo() {}
export function* foo() {}
export const $foo = 42
export const $foo= 42
export namespace Foo {}
export type Foo = \'foo\'
export let name1, name2/*, … */; // also var
export const name1 = 1, name2 = 2/*, … */; // also var, let
export function functionName() { /* … */ }
export class ClassName { /* … */ }
export function* generatorFunctionName() { /* … */ }
export const { name1, name2: bar } = o;
export const [ name1, name2 ] = array;
declare module \'module-name\' {
export declare abstract class Building {}
export declare class House extends Building {}
}
"export const $foo = 42"
export default async function functionName() { /* … */ }
export default function functionName() { /* … */ }
export default function* generatorName() { /* … */ }
export default async function* generatorNameAsync() { /* … */ }
export default class ClassName { /* … */ }
export default abstract class ClassName { /* … */ }
export default function () { /* … */ }
export default async function () { /* … */ }
export default function* () { /* … */ }
export default async function* () { /* … */ }
export default class { /* … */ }
export default async () => {}
export default async arg => {}
export default () => {}
export default arg => {}
export default (arg) => {}
export default foo
export default foo;
export default 1 + 1;
// export const CJS_SYNTAX_REGEX
/**
* Resolvable file extensions.
*
* @example
* export const CJS_SYNTAX_REGEX
*/
export type Foo = \'foo\'';
my $regex = qr/(?<=^|[\n;](?:[\t ]*(?:\w+ )?)?)export\s*(?<modifiers>(?:\s*declare|\s*abstract|\s*async)+)?\s*(?<declaration>class|const +enum|const|enum|function\*?|interface|let|namespace|type(?! *\{)|var)\s+(?<exports>(?:[$_\p{ID_Start}][$\u200C\u200D\p{ID_Continue}]*(?=[\s=:;/({])(?!.*?,))|(?:[\w\t\n\r .,:$'"=-]+)|(?:[{[][\w\t\n\r .,:$'"-]+[}\]]))(?:\s*=\s*[$_\p{ID_Start}][$\u200C\u200D\p{ID_Continue}]*)?/up;
if ( $str =~ /$regex/g ) {
print "Whole match is ${^MATCH} and its start/end positions can be obtained via \$-[0] and \$+[0]\n";
# print "Capture Group 1 is $1 and its start/end positions can be obtained via \$-[1] and \$+[1]\n";
# print "Capture Group 2 is $2 ... and so on\n";
}
# ${^POSTMATCH} and ${^PREMATCH} are also available with the use of '/p'
# Named capture groups can be called via $+{name}
Please keep in mind that these code samples are automatically generated and are not guaranteed to work. If you find any syntax errors, feel free to submit a bug report. For a full regex reference for Perl, please visit: http://perldoc.perl.org/perlre.html