Research V6 development

Work on file usr/doc/man/man1/spell.1

Synthesized-from: v6

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+.th SPELL I 4/15/75
+.sh NAME
+spell \*- find spelling errors
+.sh SYNOPSIS
+.bd spell
+[
+.bd \*-v
+]
+file ...
+.sh DESCRIPTION
+.it Spell
+collects the words from the named documents,
+and looks them up in a dictionary.
+The words not found are printed on the standard output.
+Words which are reasonable transformations of dictionary entries
+(e.g. a dictionary entry plus
+.it s
+)
+are not printed.
+If no files are given, the input is from the standard input.
+.s3
+If the
+.bd \*-v
+flag is given, all words which are not literally in the dictionary are printed;
+those which can be transformed to lie in the dictionary are so marked,
+and the others are marked with asterisks.
+.s3
+The process takes several minutes.
+.sh FILES
+/usr/lib/w2006, /usr/dict/words, /usr/lib/spell[123]
+.sh "SEE ALSO"
+typo (I)
+.sh BUGS
+.s3
+Because of the mapping into lower case and the stripping of
+special characters, words may be hard to locate in the original text.
+.s3
+The escape sequences of troff (I) are not correctly recognized.
+.s3
+More suffixes, and perhaps some prefixes, should be added.
+.s3
+The dictionary cannot be distributed because of
+copyright limitations.