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+__Searching for special characters in MARC Review__
+There is now an easier way to find all records with special characters, such as diacritics, using MARC Review.
+Start Marc Review, go to the Pattern form, and enter the following pattern:
+{{:233:marcreview_diacritics.jpg|}}
+If you run this review, it will match all records that have characters outside the normal ASCII range.
+This review is possible because MARC Review now supports regular expression ranges that include non-printing characters. The example above uses the hex numbers: {x7F} and {xFF}; you can also use decimal notation: {127} and {255}.
+At present (233 beta), this type of review is only possible for a whole record search (ie. a pattern where TAG='XXX').
+If your records use MARC-8 encoding, you could refine this review to find all invalid characters:
+  TAG=XXX
+  DATA= [{x01}-{x1A}{x1C}{x80}-{x87}{x8A}-{x8C}{x8F}{xAF}{xBB}{xBE}{xBF}{xC9}-{xDF}{xFC}{xFD}{xFF}]
+  REGULAR EXPRESSION=True
+The character set specified above is simply the reverse of the MARC-8 characters listed as valid by LC: http://lcweb2.loc.gov/diglib/codetables/45.html

233/marc_review_diacritics.txt · Last modified: 2021/12/29 16:21 (external edit)

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