MDS065: code-block-style

Code blocks must use a single delimiter — fenced or four-space indented — consistently across the file.

# Settings

# Autofix

mdsmith fix converts each indented code block to a fenced block when the resolved style is fenced. The converted block gets the language tag text so the result satisfies fenced-code-language (MDS011); edit it to the real language after fixing.

The new fence is sized to clear any backtick run at the start of a content line, so the embedded run never closes the converted block prematurely. A block with a ``` line is wrapped in a 4-backtick fence; a block with ```` gets a 5-backtick fence; and so on.

The reverse direction (fenced → indented) is not auto-applied: it would drop any language tag set on the fenced block.

# Config

Enable (default — fenced style):

rules:
  code-block-style:
    style: fenced

Disable:

rules:
  code-block-style: false

Require four-space indented blocks:

rules:
  code-block-style:
    style: indented

Pin the style to whichever the first block uses:

rules:
  code-block-style:
    style: consistent

# Examples

# Good — default style

# Title

```go
fmt.Println("hello")
```

# Good — style: indented

# Title

Some text first.

    indented code

# Bad — default style

# Title

Some text first.

    indented code

# Meta-Information

• ID: MDS065
• Name: code-block-style
• Status: ready
• Default: enabled, style: fenced
• Fixable: indented → fenced only
• Implementation: source
• Category: code
• markdownlint: MD046 (code-block-style)
• rumdl: MD046 (code-block-style)
• mado: MD046 (code-block-style)