no_bom

Flag a leading UTF-8 / UTF-16 LE/BE / UTF-32 LE/BE byte-order mark. The fixer strips whichever BOM is detected.

---

Options

This rule takes no kind-specific options.

Plus the common paths, level, id, and when fields. This table is generated from the JSON Schema; option types and defaults are authoritative.

Example

A Markdown file that opens with a UTF-8 byte-order mark

The rule fires on this repository:

docs/
docs/clean.md
docs/with_bom.md

docs/clean.md

# hi

docs/with_bom.md

<U+FEFF># hi

With this .alint.yml:

version: 1
rules:
  - id: no-bom
    kind: no_bom
    paths: "docs/**/*.md"
    level: warning

alint check reports:

--- docs/with_bom.md -----------------------------------------------------------
  !  warning  no-bom
              1:1  file begins with a UTF-8 BOM

Summary (1 violation):
  ! 1 warning
  0 passing * 1 failing

Markdown files saved as plain UTF-8 with no BOM

This repository is compliant:

docs/
docs/a.md
docs/b.md

docs/a.md

# hi

docs/b.md

content

With this .alint.yml:

version: 1
rules:
  - id: no-bom
    kind: no_bom
    paths: "docs/**/*.md"
    level: warning

alint check reports:

v All 1 rule(s) passed.