* nxml/xsd-regexp.el (xsdre-gen-categories):

* nxml/xsd-regexp.el (xsdre-gen-categories):
* nxml/xmltok.el (xmltok-parse-entity):
* nxml/rng-parse.el (rng-parse-validate-file):
* nxml/rng-maint.el (rng-format-manual, rng-manual-output-force-new-line):
* nxml/rng-loc.el (rng-save-schema-location-1):
* nxml/rng-cmpct.el (rng-c-parse-file):
* nxml/nxml-maint.el (nxml-insert-target-repertoire-glyph-set):
* nxml/nxml-parse.el (nxml-parse-file): Use with-current-buffer.