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Diffstat (limited to 'javascript/jsPacker/ParseMaster.pm')
| -rw-r--r-- | javascript/jsPacker/ParseMaster.pm | 207 |
1 files changed, 0 insertions, 207 deletions
diff --git a/javascript/jsPacker/ParseMaster.pm b/javascript/jsPacker/ParseMaster.pm deleted file mode 100644 index f07ba68..0000000 --- a/javascript/jsPacker/ParseMaster.pm +++ /dev/null @@ -1,207 +0,0 @@ -#ParseMaster (July 25 2005)
-# Based on "ParseMaster.js" by Dean Edwards <http://dean.edwards.name/>
-# Ported to Perl by Rob Seiler, ELR Software Pty Ltd <http://www.elr.com.au>
-# Copyright 2005. License <http://creativecommons.org/licenses/LGPL/2.1/>
-
-package ParseMaster;
-use strict;
-use Data::Dumper;
-
-# Package wide variable declarations
-use vars qw/$VERSION
- @_X_escaped @_X_patterns
- /;
-
-$VERSION = '017';
-
-# constants
-my $X_EXPRESSION = 0;
-my $X_REPLACEMENT = 1;
-my $X_LENGTH = 2;
-
-# re's used to determine nesting levels
-my $X_GROUPS = qr/\(/o; # NB: Requires g modifier!
-my $X_SUB_REPLACE = qr/\$\d/o;
-my $X_INDEXED = qr/^\$\d+$/o;
-my $XX_ESCAPE = qr/\\./o; # NB: Requires g modifier!
-my $XX_DELETED = qr/\001[^\001]*\001/o; # NB: Requires g modifier!
-my $DIGIT = qr/[^\D]/o; # Yep - this is a digit - contains no non-digits
-
-# Constructor
-sub new {
- my $class = shift;
- my $self = {};
- @_X_escaped = (); # Re-initialize global for each instance
- @_X_patterns = (); # Re-initialize global for each instance
- # Instance variables - access by similarly named set/get functions
- $self->{_ignoreCase_} = 0;
- $self->{_escapeChar_} = '';
- bless ($self, $class);
- return $self;
-}
-
-sub ignoreCase {
- my ($self, $value) = @_;
- if (defined($value)) {
- $self->{_ignoreCase_} = $value;
- }
- return $self->{_ignoreCase_};
-}
-
-sub escapeChar{
- my ($self, $value) = @_;
- if (defined($value)) {
- $self->{_escapeChar_} = $value;
- }
- return $self->{_escapeChar_};
-}
-
-#######################
-# Public Parsemaster functions
-
-my $X_DELETE = sub(@$) {
- my $X_offset = pop;
- my @X_match = @_;
- return (chr(001) . $X_match[$X_offset] . chr(001));
-}; # NB semicolon required for closure!
-
-# create and add a new pattern to the patterns collection
-sub add {
- my ($self, $expression, $X_replacement) = @_;
- if (!$X_replacement) {$X_replacement = $X_DELETE};
-
- # count the number of sub-expressions
- my $temp = &_X_internalEscape($expression);
- my $length = 1; # Always at least one because each pattern is itself a sub-expression
- $length += $temp =~ s/$X_GROUPS//g; # One way to count the left capturing parentheses in the regexp string
-
- # does the pattern deal with sub-expressions?
- if ((ref($X_replacement) ne "CODE") && ($X_replacement =~ m/$X_SUB_REPLACE/)) {
- if ($X_replacement =~ m/$X_INDEXED/) { # a simple lookup? (eg "$2")
- # store the index (used for fast retrieval of matched strings)
- $X_replacement = substr($X_replacement,1) - 1;
- }
- else { # a complicated lookup (eg "Hello $2 $1")
- my $i = $length;
- while ($i) { # Had difficulty getting Perl to do Dean's splitting and joining of strings containing $'s
- my $str = '$a[$o+' . ($i-1) . ']'; # eg $a[$o+1]
- $X_replacement =~ s/\$$i/$str/; # eg $2 $3 -> $a[$o+1] $a[$o+2]
- $i--;
- }
- # build a function to do the lookup - returns interpolated string of array lookups
- $X_replacement = eval('sub {my $o=pop; my @a=@_; return "' . $X_replacement . '"};');
- }
- }
- else {}
- # pass the modified arguments
- &_X_add($expression || q/^$/, $X_replacement, $length);
-}
-
-# execute the global replacement
-sub exec {
-#print Dumper(@_X_patterns);
- my ($self, $X_string) = @_;
- my $escChar = $self->escapeChar();
- my $ignoreCase = $self->ignoreCase();
- my ($regexp,$captures) = &_getPatterns(); # Concatenated and parenthesized regexp eg '(regex1)|(regex2)|(regex3)' etc
- $X_string = &_X_escape($X_string, $escChar);
- if ($ignoreCase) {$X_string =~ s/$regexp/{&_X_replacement(&_matchVars($captures,\$X_string))}/gie} # Pass $X_String as a
- else {$X_string =~ s/$regexp/{&_X_replacement(&_matchVars($captures,\$X_string))}/ge} # reference for speed
-
- $X_string = &_X_unescape($X_string, $escChar);
- $X_string =~ s/$XX_DELETED//g;
- return $X_string;
-}
-
-sub _X_add {
- push (@_X_patterns, [@_]); # Save each argument set as is into an array of arrays
-}
-
-# this is the global replace function (it's quite complicated)
-sub _X_replacement {
- my (@arguments) = @_;
-#print Dumper (@arguments);
- if ($arguments[0] le '') {return ''}
- # Dereference last index (source String) here - faster than in _matchVars (maybe not needed at all?)
- $arguments[$#arguments] = ${$arguments[$#arguments]};
- my $i = 1;
- # loop through the patterns
- for (my $j=0; $j<scalar(@_X_patterns); $j++) { # Loop through global all @_X_patterns
- my @X_pattern = @{$_X_patterns[$j]};
- # do we have a result? NB: "if ($arguments[$i])" as in Dean's Javascript is false for the value 0!!!
- if ((defined $arguments[$i]) && ($arguments[$i] gt '')) {
- my $X_replacement = $X_pattern[$X_REPLACEMENT];
- # switch on type of $replacement
- if (ref($X_replacement) eq "CODE") { # function
- return &$X_replacement(@arguments,$i);
- }
- elsif ($X_replacement =~ m/$DIGIT/) { # number (contains no non-digits)
- return $arguments[$X_replacement + $i];
- }
- else { # default
- return $X_replacement; # default
- }
- } # skip over references to sub-expressions
- else {$i += $X_pattern[$X_LENGTH]}
- }
-}
-
-#######################
-# Private functions
-#######################
-
-# encode escaped characters
-sub _X_escape {
- my ($X_string, $X_escapeChar) = @_;
- if ($X_escapeChar) {
- my $re = '\\'.$X_escapeChar.'(.)';
- $X_string =~ s/$re/{push(@_X_escaped,$1); $X_escapeChar}/ge;
- }
- return $X_string;
-}
-
-# decode escaped characters
-sub _X_unescape {
- my ($X_string, $X_escapeChar) = @_;
- if ($X_escapeChar) { # We'll only do this if there is an $X_escapeChar!
- my $re = '\\'.$X_escapeChar;
- $X_string =~ s/$re/{$X_escapeChar . (shift(@_X_escaped))}/ge; # Don't use Dean Edwards as below 'or' here - because zero will return ''!
- # $X_string =~ s/$re/{$X_escapeChar . (shift(@_X_escaped) || '')}/ge;
- }
- return $X_string;
-}
-
-sub _X_internalEscape {
- my ($string) = shift;
- $string =~ s/$XX_ESCAPE//g;
- return $string;
-}
-
-# Builds an array of match variables to (approximately) emulate that available in Javascript String.replace()
-sub _matchVars {
- my ($m,$sref) = @_;
- my @args = (1..$m); # establish the number potential memory variables
- my @mv = map {eval("\$$_")} @args; # matchvarv[1..m] = the memory variables $1 .. $m
- unshift (@mv, $&); # matchvar[0] = the substring that matched
- push (@mv, length($`)); # matchvar[m+1] = offset within the source string where the match occurred (= length of prematch string)
- push (@mv, $sref); # matchvar[m+2] = reference to full source string (dereference in caller if/when needed)
-#print Dumper (@mv);
- return @mv;
-}
-
-sub _getPatterns {
- my @Patterns = ();
- my $lcp = 0;
- for (my $i=0; $i<scalar(@_X_patterns); $i++) { # Loop through global all @_patterns
- push (@Patterns, $_X_patterns[$i][$X_EXPRESSION]); # accumulate the expressions
- $lcp += $_X_patterns[$i][$X_LENGTH]; # sum the left capturing parenthesis counts
- }
- my $str = "(" . join(')|(',@Patterns). ")"; # enclose each pattern in () separated by "|"
- return ($str, $lcp);
-}
-
-##################
-# END #
-##################
-1; # ParseMaster #
-##################
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