File & Path

Relative Path

Matches relative file paths (./, ../, or path/to/file).

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Available in

JSSupported

JavaScript / ECMAScript

Browser-native RegExp. Default if you don't pick.

PYSupported

Python (re)

CPython stdlib `re`. Unicode-aware `\w` and `\d` by default.

GOSupported

Go (RE2)

Linear-time matching. No backreferences or lookarounds.

Pattern

regexengine-agnostic
^(\.{1,2}\/)?([^\/\0]+\/)*[^\/\0]+$

Raw source: ^(\.{1,2}\/)?([^\/\0]+\/)*[^\/\0]+$

How it works

`^(\.{1,2}\/)?` optionally matches `./` or `../` prefix. `([^\/\0]+\/)*` matches zero or more directory segments. `[^\/\0]+$` matches the final file segment.

Examples

Input

./src/index.ts

Matches

  • ./src/index.ts

Input

../parent/file.js

Matches

  • ../parent/file.js

Input

file.txt

Matches

  • file.txt

Common use cases

  • •Import resolution
  • •Build tools
  • •Path normalization

Related patterns

Windows File Path

File & Path

Matches absolute Windows file paths (e.g., C:\Users\file.txt).

Unix File Path

File & Path

Matches absolute Unix/Linux file paths.

File Extension

File & Path

Captures the file extension from a filename.

Image File Extension

File & Path

Match common image file extensions: jpg, jpeg, png, gif, webp, svg, avif, bmp, ico, tif, tiff.

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