Z39.50 Proposal....

For a Bib-1 Truncation Attribute 105: Masking

Comments due June 30.

Note: this proposal has been superceded. See new proposal.

Type 105: "Masking": Proposed Definition.

• A single asterisk (*) is used to mask zero or more characters.
• A single question mark (?) is used to mask zero or one character.
  (Thus N consecutive question-marks means mask zero
  to N characters.)
• Backslash is used to escape ? and * (as well as itself). Thus for example:
  
  • \? is a literal ?
    
  • \* is a literal *
    
  • \\ is a literal \
  • \\* is literal backslash followed by active *.
  • \\\* is literal \*.

• Proposal for truncation type 105: Masking