diff options
Diffstat (limited to 'perl.man.2')
| -rw-r--r-- | perl.man.2 | 26 |
1 files changed, 23 insertions, 3 deletions
diff --git a/perl.man.2 b/perl.man.2 index 25f3c26469..05eb4a9130 100644 --- a/perl.man.2 +++ b/perl.man.2 @@ -1,7 +1,10 @@ ''' Beginning of part 2 -''' $Header: perl.man.2,v 1.0.1.2 88/01/30 17:04:28 root Exp $ +''' $Header: perl.man.2,v 1.0.1.3 88/02/01 17:33:03 root Exp $ ''' ''' $Log: perl.man.2,v $ +''' Revision 1.0.1.3 88/02/01 17:33:03 root +''' patch12: documented split more adequately. +''' ''' Revision 1.0.1.2 88/01/30 17:04:28 root ''' patch 11: random cleanup ''' @@ -333,8 +336,25 @@ Anything matching PATTERN is taken to be a delimiter separating the fields. (Note that the delimiter may be longer than one character.) Trailing null fields are stripped, which potential users of pop() would do well to remember. -A pattern matching the null string will split the value of EXPR into separate -characters. +A pattern matching the null string (not to be confused with a null pattern) +will split the value of EXPR into separate characters at each point it +matches that way. +For example: +.nf + + print join(':',split(/ */,'hi there')); + +.fi +produces the output 'h:i:t:h:e:r:e'. + +The pattern /PATTERN/ may be replaced with an expression to specify patterns +that vary at runtime. +As a special case, specifying a space ('\ ') will split on white space +just as split with no arguments does, but leading white space does NOT +produce a null first field. +Thus, split('\ ') can be used to emulate awk's default behavior, whereas +split(/\ /) will give you as many null initial fields as there are +leading spaces. .sp Example: .nf |