.\" Automatically generated by Pod::Man 2.27 (Pod::Simple 3.28) .\" .\" Standard preamble: .\" ======================================================================== .de Sp \" Vertical space (when we can't use .PP) .if t .sp .5v .if n .sp .. .de Vb \" Begin verbatim text .ft CW .nf .ne \\$1 .. .de Ve \" End verbatim text .ft R .fi .. .\" Set up some character translations and predefined strings. \*(-- will .\" give an unbreakable dash, \*(PI will give pi, \*(L" will give a left .\" double quote, and \*(R" will give a right double quote. \*(C+ will .\" give a nicer C++. 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No user-serviceable parts. . \" fudge factors for nroff and troff .if n \{\ . ds #H 0 . ds #V .8m . ds #F .3m . ds #[ \f1 . ds #] \fP .\} .if t \{\ . ds #H ((1u-(\\\\n(.fu%2u))*.13m) . ds #V .6m . ds #F 0 . ds #[ \& . ds #] \& .\} . \" simple accents for nroff and troff .if n \{\ . ds ' \& . ds ` \& . ds ^ \& . ds , \& . ds ~ ~ . ds / .\} .if t \{\ . ds ' \\k:\h'-(\\n(.wu*8/10-\*(#H)'\'\h"|\\n:u" . ds ` \\k:\h'-(\\n(.wu*8/10-\*(#H)'\`\h'|\\n:u' . ds ^ \\k:\h'-(\\n(.wu*10/11-\*(#H)'^\h'|\\n:u' . ds , \\k:\h'-(\\n(.wu*8/10)',\h'|\\n:u' . ds ~ \\k:\h'-(\\n(.wu-\*(#H-.1m)'~\h'|\\n:u' . ds / \\k:\h'-(\\n(.wu*8/10-\*(#H)'\z\(sl\h'|\\n:u' .\} . \" troff and (daisy-wheel) nroff accents .ds : \\k:\h'-(\\n(.wu*8/10-\*(#H+.1m+\*(#F)'\v'-\*(#V'\z.\h'.2m+\*(#F'.\h'|\\n:u'\v'\*(#V' .ds 8 \h'\*(#H'\(*b\h'-\*(#H' .ds o \\k:\h'-(\\n(.wu+\w'\(de'u-\*(#H)/2u'\v'-.3n'\*(#[\z\(de\v'.3n'\h'|\\n:u'\*(#] .ds d- \h'\*(#H'\(pd\h'-\w'~'u'\v'-.25m'\f2\(hy\fP\v'.25m'\h'-\*(#H' .ds D- D\\k:\h'-\w'D'u'\v'-.11m'\z\(hy\v'.11m'\h'|\\n:u' .ds th \*(#[\v'.3m'\s+1I\s-1\v'-.3m'\h'-(\w'I'u*2/3)'\s-1o\s+1\*(#] .ds Th \*(#[\s+2I\s-2\h'-\w'I'u*3/5'\v'-.3m'o\v'.3m'\*(#] .ds ae a\h'-(\w'a'u*4/10)'e .ds Ae A\h'-(\w'A'u*4/10)'E . \" corrections for vroff .if v .ds ~ \\k:\h'-(\\n(.wu*9/10-\*(#H)'\s-2\u~\d\s+2\h'|\\n:u' .if v .ds ^ \\k:\h'-(\\n(.wu*10/11-\*(#H)'\v'-.4m'^\v'.4m'\h'|\\n:u' . \" for low resolution devices (crt and lpr) .if \n(.H>23 .if \n(.V>19 \ \{\ . ds : e . ds 8 ss . ds o a . ds d- d\h'-1'\(ga . ds D- D\h'-1'\(hy . ds th \o'bp' . ds Th \o'LP' . ds ae ae . ds Ae AE .\} .rm #[ #] #H #V #F C .\" ======================================================================== .\" .IX Title "Shellish 3pm" .TH Shellish 3pm "2002-01-24" "perl v5.18.1" "User Contributed Perl Documentation" .\" For nroff, turn off justification. Always turn off hyphenation; it makes .\" way too many mistakes in technical documents. .if n .ad l .nh .SH "NAME" Regexp::Shellish \- Shell\-like regular expressions .SH "SYNOPSIS" .IX Header "SYNOPSIS" .Vb 1 \& use Regexp::Shellish qw( :all ) ; \& \& $re = compile_shellish( \*(Aqa/c*d\*(Aq ) ; \& \& ## This next one\*(Aqs like \*(Aqa*d\*(Aq except that it\*(Aqll \& ## match \*(Aqa/d\*(Aq. \& $re = compile_shellish( \*(Aqa**d\*(Aq ) ; \& \& ## And here \*(Aq**\*(Aq won\*(Aqt match \*(Aqa/d\*(Aq, but behaves \& ## like \*(Aqa*d\*(Aq, except for the possibility of high \& ## cpu time consumption. \& $re = compile_shellish( \*(Aqa**d\*(Aq, { star_star => 0 } ) ; \& \& ## The next two result in identical $re1 and $re2. \& ## The second is a noop so that Regexp references can \& ## be easily accomodated. \& $re1 = compile_shellish( \*(Aqa{b,c}d\*(Aq ) ; \& $re2 = compile_shellish( qr/\eA(?:a(?:b|c)d)\eZ/ ) ; \& \& @matches = shellish_glob( $re, @possibilities ) ; .Ve .SH "DESCRIPTION" .IX Header "DESCRIPTION" Provides shell-like regular expressions. The wildcards provided are \f(CW\*(C`?\*(C'\fR, \f(CW\*(C`*\*(C'\fR and \f(CW\*(C`**\*(C'\fR, where \f(CW\*(C`**\*(C'\fR is like \f(CW\*(C`*\*(C'\fR but matches \f(CW\*(C`/\*(C'\fR. See \&\*(L"compile_shellish\*(R" for details. .PP Case sensitivity and constructs like <**>, \f(CW\*(C`(a*b)\*(C'\fR, and \f(CW\*(C`{a,b,c}\*(C'\fR can be disabled. .IP "compile_shellish" 4 .IX Item "compile_shellish" Compiles a string containing a 'shellish' regular expression, returning a Regexp reference. Regexp references passed in are passed through unmolested. .Sp Here are the transformation rules from shellish expression terms to perl regular expression terms: .Sp .Vb 6 \& Shellish Perl RE \& ======== ======= \& * [^/]* \& ? . \& ** .* ## unless { star_star => 0 } \& ... .* ## unless { dot_dot_dot => 0 } \& \& ( ( ## unless { parens => 0 } \& ) ) ## unless { parens => 0 } \& \& {a,b,c} (?:a|b|c) ## unless { braces => 0 } \& \& \ea a ## These are de\-escaped and \& \e* \e* ## passed to quotemeta() .Ve .Sp The wildcards treat newlines as normal characters. .Sp Parens group in to \f(CW$1\fR..$n, since they are passed through unmolested (unless option parens => 0 is passed). This is useless when using \&\fIglob_shellish()\fR, though. .Sp The final parameter can be a hash reference containing options: .Sp .Vb 12 \& compile_shellish( \& \*(Aq**\*(Aq, \& { \& anchors => 0, ## Doesn\*(Aqt put ^ and $ around the \& ## resulting regexp \& case_sensitive => 0, ## Make case insensitive \& dot_dot_dot => 0, ## \*(Aq...\*(Aq is now just three \*(Aq.\*(Aq chars \& star_star => 0, ## \*(Aq**\*(Aq is now two \*(Aq*\*(Aq wildcards \& parens => 0, ## \*(Aq(\*(Aq, \*(Aq)\*(Aq are now regular chars \& braces => 0, ## \*(Aq{\*(Aq, \*(Aq}\*(Aq are now regular chars \& } \& ) ; .Ve .Sp No option affects Regexps passed through. .IP "shellish_glob" 4 .IX Item "shellish_glob" Pass a regular expression and a list of possible values, get back a list of matching values. .Sp .Vb 2 \& my @matches = shellish_glob( \*(Aq*/*\*(Aq, @possibilities ) ; \& my @matches = shellish_glob( \*(Aq*/*\*(Aq, @possibilities, \e%options ) ; .Ve .SH "AUTHOR" .IX Header "AUTHOR" Barrie Slaymaker