Purpose

A built-in shelf of integers that provides the markup error class:

• 0 for markup information or warning messages.
• 1 for recoverable markup errors.
• 2 for non-recoverable markup errors.

This shelf of integers can be accessed only from the header and body of markup-error rules.

Related Syntax    sgml-error    #error-code    #file-name    #line-number    #message    #recovery-info    #additional-info

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