Add Power Query (M) language support

[jacob-kraniak]

Description

This pull request adds support for the Power Query (M) language (also known as Power Query Formula Language).

• Added language definition in lib/linguist/languages.yml
• Registered the official syntax highlighting grammar
• Included representative real-world sample files

This implements the addition discussed and approved in issue #7856.

Checklist:

• I am adding a new language.
  • The extension of the new language is used in hundreds of repositories on GitHub.com.
    • Search results for each extension:
      • .pq: https://github.com/search?q=NOT+is%3Afork+path%3A*.pq+NOT+path%3A*.pqm&type=code
      • .pqm: https://github.com/search?q=NOT+is%3Afork+path%3A*.pqm&type=code
  • I have included a real-world usage sample for all extensions added in this PR:
    • Sample source(s):
      • Samples exported from my own repository: https://github.com/jacob-kraniak/MXtoolbox-Powerquery
      • Specifically: samples/PowerQuery/fnMxToolboxLookup.pq (custom function) and samples/PowerQuery/q_MxToolboxScore_SOAR3.pq (multi-step query)
    • Sample license(s):
      MIT License. The source repository is licensed under MIT, and the extracted sample files are released under the same terms that cover the Linguist project.
  • I have included a syntax highlighting grammar: https://github.com/microsoft/powerquery-language
  • I have added a color
    • Hex value: #d38e0d
    • Rationale: Gold tone inspired by Power BI / Power Query branding. Provides strong contrast in both light and dark GitHub themes and is consistent with other Microsoft data languages.
  • I have updated the heuristics to distinguish my language from others using the same extension.
    (Not required — .pq and .pqm show low conflict risk with other languages.)

[DecimalTurn]

Looking good, just 2 comments.

[DecimalTurn]

LGTM

[jacob-kraniak]

@DecimalTurn, is anything else pending from my side before merge approval?

[sabicammar73-create]

What you think you should have to do? pon, 20. apr 2026. 15:29 pošiljalac Jacob Kraniak ***@***.***> je napisao:

…

*jacob-kraniak* left a comment (github-linguist/linguist#7896) <#7896?email_source=notifications&email_token=CB5WCFIBONDFVLOG365GLVD4WYQ27A5CNFSNUABFM5UWIORPF5TWS5BNNB2WEL2JONZXKZKDN5WW2ZLOOQXTIMRYGEYTKMRYGQZ2M4TFMFZW63VKON2WE43DOJUWEZLEUVSXMZLOOS2XA4S7MNXW23LFNZ2F633QMVXF6Y3MNFRWW#issuecomment-4281152843> @DecimalTurn <https://github.com/DecimalTurn>, is anything else pending from my side before merge approval? — Reply to this email directly, view it on GitHub <#7896?email_source=notifications&email_token=CB5WCFIBONDFVLOG365GLVD4WYQ27A5CNFSNUABFM5UWIORPF5TWS5BNNB2WEL2JONZXKZKDN5WW2ZLOOQXTIMRYGEYTKMRYGQZ2M4TFMFZW63VKON2WE43DOJUWEZLEUVSXMZLOOS2XA4S7MNXW23LFNZ2F633QMVXF6Y3MNFRWW#issuecomment-4281152843>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/CB5WCFKB7M7WOVZGTVK2XSL4WYQ27AVCNFSM6AAAAACXM2WO3WVHI2DSMVQWIX3LMV43OSLTON2WKQ3PNVWWK3TUHM2DEOBRGE2TEOBUGM> . You are receiving this because you are subscribed to this thread.Message ID: ***@***.***>

[DecimalTurn]

@jacob-kraniak, it looks OK from my end, but I'm a regular "contributor", so I can't formally approve the PR. Only a maintainer can.

I'm sure one will review your PR in time for the next release, but there's no rush since the next release won't be until june at least.

[jacob-kraniak]

@jacob-kraniak, it looks OK from my end, but I'm a regular "contributor", so I can't formally approve the PR. Only a maintainer can.

I'm sure one will review your PR in time for the next release, but there's no rush since the next release won't be until june at least.

ah, I misunderstood. I had thought you were an approver. I am still fairly new to Github!

[DecimalTurn]

Now that the tests have run, I can see that the folder containing the samples need to have a space between "Power" and "Query".

[jacob-kraniak]

should be good to merge now