(s)
| 504 | |
| 505 | |
| 506 | def validate_ps_distiller(s): |
| 507 | if isinstance(s, str): |
| 508 | s = s.lower() |
| 509 | if s in ('none', None, 'false', False): |
| 510 | return None |
| 511 | else: |
| 512 | return ValidateInStrings('ps.usedistiller', ['ghostscript', 'xpdf'])(s) |
| 513 | |
| 514 | |
| 515 | # A validator dedicated to the named line styles, based on the items in |
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