 @@ -1,182 +1,194 @@
 .TH agrep 1 "November 21, 2004" "TRE agrep 0.8.0"
 .SH NAME
 agrep \- print lines approximately matching a pattern
 .SH SYNOPSIS
 .B agrep
 .RI [ OPTION ]...
 .I PATTERN
 .RI [ FILE ]...
 .SH DESCRIPTION
 Searches for approximate matches of PATTERN in each FILE or standard
-input.   Example: `agrep \-2 optimize foo.txt' outputs all lines in
+input.
-file `foo.txt' that match "optimize" within two errors.  E.g. lines
+Example: `agrep \-2 optimize foo.txt' outputs all lines in
-which contain "optimise", "optmise", and "opitmize" all match.
+file `foo.txt' that match "optimize" within two errors.
 E.g. lines which contain "optimise", "optmise", and "opitmize" all
 match.
 .SH OPTIONS
 .SS "Regexp selection and interpretation:"
 .TP
 .BI \-e " PATTERN" "\fR,\fP \-\^\-regexp=" PATTERN
 Use
 .I PATTERN
 as a regular expression; useful to protect patterns beginning with
 .BR \- .
 .TP
 .BR \-i ", " \-\^\-ignore\-case
 Ignore case distinctions (as defined by the current locale) in
 .I PATTERN
 and input files.
 .TP
 .BR \-k ", " \-\^\-literal
 Treat
 .I PATTERN
 as a literal string, that is, a fixed string with no special
 characters.
 .TP
 .BR \-w ", " \-\^\-word\-regexp
 Force
 .I PATTERN
-to match only whole words.  A "whole word" is a substring which either
+to match only whole words.
-starts at the beginning or the record or is preceded by a non-word
+A "whole word" is a substring which either starts at the beginning
-constituent character.   Similarly, the substring must either end at
+or the record or is preceded by a non-word constituent character.
-the end of the record or be followed by a non-word constituent
+Similarly, the substring must either end at the end of the record
-character.  Word-constituent characters are alphanumerics (as
+or be followed by a non-word constituent character.
-defined by the current locale) and the underscore character.  Note
+Word-constituent characters are alphanumerics (as
-that the non-word constituent characters
+defined by the current locale) and the underscore character.
 Note that the non-word constituent characters
 .B must
 surround the match; they cannot be counted as errors.
 .SS "Approximate matching settings:"
 .TP
 .BI \-D " NUM" "\fR,\fP \-\^\-delete\-cost=" NUM
 Set cost of missing characters to
 .IR NUM .
 .TP
 .BI \-I " NUM" "\fR,\fP \-\^\-insert\-cost=" NUM
 Set cost of extra characters to
 .IR NUM .
 .TP
 .BI \-S " NUM" "\fR,\fP \-\^\-substitute\-cost=" NUM
 Set cost of incorrect characters to
 .IR NUM .
 Note that a deletion (a missing character) and an insertion (an extra
 character) together constitute a substituted character, but the cost
-will be the that of a deletion and an insertion added together.  Thus,
+will be the that of a deletion and an insertion added together.
-if the const of a substitution is set to be larger than the sum
+Thus, if the const of a substitution is set to be larger than the
-of the costs of deletion and insertion, direct substitutions will
+sum of the costs of deletion and insertion, direct substitutions
-never be done.
+will never be done.
 .TP
 .BI \-E " NUM" "\fR,\fP \-\^\-max\-errors=" NUM
 Select records that have at most
 .I NUM
 errors.
 .TP
 -\fI#\fR
 Select records that have at most \fI#\fR errors (\fI#\fR is a
 digit between 0 and 9).
 .SS "Miscellaneous:"
 .TP
 .BI \-d " PATTERN" "\fR,\fP \-\^\-delimiter=" PATTERN
 Set the record delimiter regular expression to
 .IR PATTERN .
 The text between two delimiters, before the first delimiter, and after
-the last delimiter is considered to be a record.  The default record
+the last delimiter is considered to be a record.
 The default record
 delimiter is the regexp "\\n", so by default a record is a line.
 .I PATTERN
 can be any regular expression that does not match the empty string.
 For example, using
 .B \-d
 "^From "
 defines mail messages as records in a Mailbox format file.
 .TP
 .BR \-v ", " \-\^\-invert\-match
 Select non-matching records instead of matching records.
 .TP
 .BR \-V ", " \-\^\-version
 Print version information and exit.
 .TP
 .BR \-y ", " \-\^\-nothing
-Does nothing.  This options exists only for compatibility with the
+Does nothing.
 This options exists only for compatibility with the
 non-free agrep program.
 .TP
 .BR \-\^\-help
 Display a brief help message and exit.
 .SS "Output control:"
 .TP
 .BR \-B ", " \-\^\-best\-match
 Only output the best matching records, that is, the records with the
-lowest cost.  This is currently implemented by making two passes over
+lowest cost.
 This is currently implemented by making two passes over
 the input files and cannot be used when reading from standard input.
 .TP
 .BR \-\^\-color ", " \-\^\-colour
-Highlight the matching strings in the output with a color marker.  The
+Highlight the matching strings in the output with a color marker.
-color string is taken from the
+The color string is taken from the
 .BI GREP_COLOR
-environment variable.  The default color is red.
+environment variable.
 The default color is red.
 .TP
 .BR \-c ", " \-\^\-count
 Only print a count of matching records per each input file,
 suppressing normal output.
 .TP
 .BR \-h ", " \-\^\-no\-filename
 Suppress the prefixing filename on output when multiple files are
 searched.
 .TP
 .BR \-H ", " \-\^\-with\-filename
 Prefix each output record with the name of the input file where the
 record was read from.
 .TP
 .BR \-l ", " \-\^\-files\-with\-matches
 Only print the name of each input file which contains at least one
-match, suppressing normal output.  The scanning for each file will
+match, suppressing normal output.
-stop on the first match.
+The scanning for each file will stop on the first match.
 .TP
 .BR \-n ", " \-\^\-record\-number
 Prefix each output record with its sequence number in the input file.
 The number of the first record is 1.
 .TP
 .BR \-q ", " \-\^\-quiet ", " \-\^\-silent
-Do not write anything to standard output.  Exit immediately with zero
+Do not write anything to standard output.
-exit status if a match is found.
+Exit immediately with zero exit status if a match is found.
 .TP
 .BR \-s ", " \-\^\-show\-cost
 Print match cost with output.
 .TP
 .BR \-\^\-show\-position
 Prefix each output record with the start and end offset of the first
-match within the record.  The offset of the first character of the
+match within the record.
-record is 0.  The end position is given as the offset of the first
+The offset of the first character of the record is 0.
 The end position is given as the offset of the first
 character after the match.
 .TP
 .BR \-M ", " \-\^\-delimiter\-after
 By default, the record delimiter is the newline character and is
-output after the matching record.  If
+output after the matching record.
 If
 .B \-d
 is used, the record delimiter will be output before the matching
-record.  This option causes the delimiter to be output after the
+record.
 This option causes the delimiter to be output after the
 matching record.
 .PP
 With no
 .IR FILE ,
 or when
 .I FILE
-is -, reads standard input.  If less than two
+is -, reads standard input.
 If less than two
 .IR FILE s
 are given
 .B \-h
 is assumed, otherwise
 .B \-H
 is the default.
 .SH DIAGNOSTICS
 Exit status is 0 if a match is found, 1 for no match, and 2 if there
-were errors.  If
+were errors.
 If
 .B \-E
 or -\fI#\fR is not specified, only exact matches are selected.
 .PP
 .I PATTERN
 is a POSIX extended regular expression (ERE) with the TRE extensions.
 .SH "REPORTING BUGS"
 Report bugs to the TRE mailing list
 .BR "" < tre-general@lists.laurikari.net >.
 .SH COPYRIGHT
 Copyright \(co 2002-2004 Ville Laurikari.
 .br
 This is free software, and comes with ABSOLUTELY NO WARRANTY.
 You are welcome to redistribute this software under certain