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Re: Replacing words in VB code but not strings or comments (5.8/10 versions)

by AnomalousMonk (Abbot)
on Sep 28, 2013 at 02:30 UTC ( #1056095=note: print w/ replies, xml ) Need Help??


in reply to Replacing words in VB code but not strings or comments

Following tested under ActiveState 5.8.9 and Strawberries 5.10.1.5, 5.12.3.0 and 5.14.4.1. I'm sure this code can be simplified a bit. No Benchmark-ing whatsoever done.

use warnings # FATAL => 'all' ; use strict; use Test::More # tests => ?? + 1 # Test::NoWarnings adds 1 test 'no_plan' ; use Test::NoWarnings; my $renames = { qw(this_sub that_sub var_1 var_a var_2 var_b and FILED), map { $_ => 'FAILED' } qw(Ignore nothing can t do it), }; my ($rx_rename) = map qr{ \b (?: $_) \b }xms, join q{ | }, keys %$renames ; # functions under test ############################################### +###### eval q{ # uses s///r from version 5.14.4+ # uses \K and possessive quantifiers from 5.10+ sub replace_5_14_4 { my ($string, ) = @_; my $rx_dquot = qr{ " [^"]*+ (?: "" [^"]*+)*+ " }xms; my $rx_ceol = qr{ ' [^\n]*+ \n?+ \z }xms; my $rx_skipem = qr{ $rx_dquot | $rx_ceol }xms; return $string =~ s{ $rx_skipem*+ \K ((?: (?! $rx_skipem) .)*+) } { $1 =~ s{ ($rx_rename) }{$renames->{$1}}xmsgr }xmsger; } } if $] >= 5.014_004; die "replace_5_14_4(): $@" if $@; eval q{ # uses \K and possessive quantifiers from 5.10+ sub replace_5_10_1 { my ($string, ) = @_; my $rx_dquot = qr{ " [^"]*+ (?: "" [^"]*+ )*+ " }xms; my $rx_ceol = qr{ ' [^\n]*+ \n?+ \z }xms; my $rx_skipem = qr{ $rx_dquot | $rx_ceol }xms; $string =~ s{ $rx_skipem*+ \K ((?: (?! $rx_skipem) .)*+) } { my $one = $1; $one =~ s{ ($rx_rename) }{$renames->{$1}}xmsg unless $one =~ $rx_skipem; $one; }xmsge; return $string; } } if $] >= 5.010_001; die "replace_5_10_1(): $@" if $@; eval q{ # should be ok for any version 5.8.9+ sub replace_5_8_9 { my ($string, ) = @_; my $rx_dquot = qr{ " [^"]* (?: "" [^"]* )* " }xms; my $rx_ceol = qr{ ' [^\n]* \n? \z }xms; my $rx_skipem = qr{ $rx_dquot | $rx_ceol }xms; # alt order co +unts! $string =~ s{ ( (?> $rx_skipem) | (?> (?: (?! $rx_skipem) .)*)) } { my $one = $1; $one =~ s{ ($rx_rename) }{$renames->{$1}}xmsg unless $one =~ $rx_skipem; $one; }xmsge; return $string; } } if $] >= 5.008_009; die "replace_5_8_9(): $@" if $@; # testing ############################################################ +###### METHOD: for my $func_name (qw(replace_5_14_4 replace_5_10_1 replace_5_8_9)) +{ next METHOD unless defined &{$func_name}; note "\n testing function $func_name() \n\n"; *replace = do { no strict 'refs'; *{$func_name}; }; VECTOR: for my $ar_vector ( "NONE of these should trigger substitution", [ qq{""}, qq{""}, ], [ qq{"'"}, qq{"'"}, ], [ qq{""""}, qq{""""}, ], [ qq{"Ignore"}, qq{"Ignore"}, ], [ qq{" Ignore "}, qq{" Ignore "}, ], [ qq{" Ignore "" it "}, qq{" Ignore "" it "}, ], [ qq{" Ignore " " it "}, qq{" Ignore " " it "}, ], [ qq{" Ignore " xxx " it " ' it}, qq{" Ignore " xxx " it " ' it}, ], [ qq{ foo("var_1", "Ignore ""can't""", """") ' do it \n}, qq{ foo("var_1", "Ignore ""can't""", """") ' do it \n}, ], "ALL of these should trigger substitution(s)", [ qq{ "Ignore" this_sub("first", var_1, "Ignore ""can't""", va +r_2, """") ' do it \n}, qq{ "Ignore" that_sub("first", var_a, "Ignore ""can't""", va +r_b, """") ' do it \n}, ], [ qq{xxx can't Ignore this_sub("first", var_1, "Ignore ""can't +""", """") ' do it \n}, qq{xxx FAILED't Ignore this_sub("first", var_1, "Ignore ""ca +n't""", """") ' do it \n}, ], [ qq{xxx will Ignore't this_sub("first", var_1, "Ignore ""can' +t""", """") ' do it \n}, qq{xxx will FAILED't this_sub("first", var_1, "Ignore ""can' +t""", """") ' do it \n}, ], ) { unless (ref $ar_vector) { # really a comment in disguise? note $ar_vector; next VECTOR; } my ($string, $expected) = @$ar_vector; is replace($string), $expected, # qq{} ; } # end for VECTOR } # end for METHOD


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