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Diff for /src/usr.bin/sed/sed.1 between version 1.54 and 1.55

version 1.54, 2017/12/19 17:46:28 version 1.55, 2018/07/10 09:10:03
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 input lines  input lines
 cumulatively across input files), a dollar character  cumulatively across input files), a dollar character
 .Pq Ql $  .Pq Ql $
 that addresses the last line of input, or a context address  that addresses the last line of input, or a context address,
 (which consists of a regular expression preceded and followed by a  which is a regular expression preceded and followed by a delimiter.
 delimiter).  The delimiter can be any character except a newline or a backslash.
   Unless it is a slash, the opening delimiter needs to be escaped with
   a backslash.
 .Pp  .Pp
 A command line with no addresses selects every pattern space.  A command line with no addresses selects every pattern space.
 .Pp  .Pp
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 .Pp  .Pp
 .Bl -enum -compact  .Bl -enum -compact
 .It  .It
 In a context address, any character other than a backslash  The character delimiting the regular expression
 .Pq Ql \e  can be used inside the regular expression by prepending a backslash
 or newline character may be used to delimit the regular expression.  or by including it in a character class.
 The opening delimiter should be preceded by a backslash  For example, in the context address \ex\ex[xy]x, the RE delimiter
 unless it is a slash.  
 Putting a backslash character before the delimiting character  
 causes the character to be treated literally.  
 For example, in the context address \exabc\exdefx, the RE delimiter  
 is an  is an
 .Sq x  .Sq x
 and the second  and the other
 .Sq x  .Sq x
 stands for itself, so that the regular expression is  characters stand for themselves, so that the regular expression is
 .Dq abcxdef .  .Dq x[xy] .
 .Pp  .Pp
 .It  .It
 The escape sequence \en matches a newline character embedded in the  The escape sequence \en matches a newline character embedded in the
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 in the pattern space.  in the pattern space.
 Any character other than backslash or newline can be used instead of  Any character other than backslash or newline can be used instead of
 a slash to delimit the regular expression and the replacement.  a slash to delimit the regular expression and the replacement.
 Within the regular expression and the replacement,  Also see the the section about
 the delimiter itself can be used as a literal character  .Sx SED REGULAR EXPRESSIONS .
 if it is preceded by a backslash.  
 .Pp  .Pp
 An ampersand  An ampersand
 .Pq Ql &  .Pq Ql &
Legend:
Removed from v.1.54  
changed lines
  Added in v.1.55