1 |
############################################## |
## --------------------------------------------------------------------------- |
2 |
# |
## $Id$ |
3 |
# $Id$ |
## --------------------------------------------------------------------------- |
4 |
# |
## $Log$ |
5 |
# $Log$ |
## Revision 1.19 2003/03/28 03:11:25 jonen |
6 |
# Revision 1.2 2002/12/01 04:44:07 joko |
## + bugfix |
7 |
# + code from Data::Transform::OO |
## |
8 |
# |
## Revision 1.18 2003/03/28 03:07:26 jonen |
9 |
# Revision 1.1 2002/11/29 04:49:20 joko |
## + minor changes |
10 |
# + initial check-in |
## |
11 |
# |
## Revision 1.17 2003/03/27 15:17:07 joko |
12 |
# Revision 1.1 2002/10/10 03:26:00 cvsjoko |
## namespace fixes for Data::Mungle::* |
13 |
# + new |
## |
14 |
# |
## Revision 1.16 2003/03/27 15:04:52 joko |
15 |
############################################## |
## minor update: comment |
16 |
|
## |
17 |
|
## Revision 1.15 2003/02/27 14:39:48 jonen |
18 |
|
## + fixed bug at _hash2object() |
19 |
|
## |
20 |
|
## Revision 1.14 2003/02/22 17:13:55 jonen |
21 |
|
## + added function 'childObject2string()' to encode 'child'-references to option related string |
22 |
|
## + use new option at 'expand()' for replacing 'childObject2string' |
23 |
|
## |
24 |
|
## Revision 1.13 2003/02/21 01:48:50 joko |
25 |
|
## renamed core function |
26 |
|
## |
27 |
|
## Revision 1.12 2003/02/20 22:45:19 joko |
28 |
|
## fix regarding new deep_copy |
29 |
|
## |
30 |
|
## Revision 1.11 2003/02/20 21:13:54 joko |
31 |
|
## - removed implementation of deep_copy2 - get this from the Pitonyak namespace (now cloned to repository) |
32 |
|
## |
33 |
|
## Revision 1.10 2003/02/20 20:48:00 joko |
34 |
|
## - refactored lots of code to Data::Code::Ref |
35 |
|
## + alternative 'deep_copy' implementation |
36 |
|
## |
37 |
|
## Revision 1.9 2003/02/18 19:35:56 joko |
38 |
|
## +- modified 'sub refexpr2perlref': now can get the $delimiter passed, too |
39 |
|
## |
40 |
|
## Revision 1.8 2003/02/09 05:10:56 joko |
41 |
|
## + minor update |
42 |
|
## |
43 |
|
## Revision 1.7 2003/01/19 03:26:59 joko |
44 |
|
## + added 'sub deep_copy' - refactored from libp |
45 |
|
## + add 'sub merge' - exported from CPAN's 'Hash::Merge' |
46 |
|
## |
47 |
|
## Revision 1.6 2002/12/23 11:27:53 jonen |
48 |
|
## + changed behavior WATCH! |
49 |
|
## |
50 |
|
## Revision 1.5 2002/12/16 19:57:54 joko |
51 |
|
## + option 'init' |
52 |
|
## |
53 |
|
## Revision 1.4 2002/12/05 13:56:49 joko |
54 |
|
## - var_deref |
55 |
|
## + expand - more sophisticated dereferencing with callbacks using Iterate |
56 |
|
## |
57 |
|
## Revision 1.3 2002/12/03 05:34:55 joko |
58 |
|
## + bugfix: now utilizing var_utf2iso from Data::Transform::Encode |
59 |
|
## |
60 |
|
## Revision 1.2 2002/12/01 04:44:07 joko |
61 |
|
## + code from Data::Transform::OO |
62 |
|
## |
63 |
|
## Revision 1.1 2002/11/29 04:49:20 joko |
64 |
|
## + initial check-in |
65 |
|
## |
66 |
|
## Revision 1.1 2002/10/10 03:26:00 cvsjoko |
67 |
|
## + new |
68 |
|
## --------------------------------------------------------------------------- |
69 |
|
|
70 |
|
|
71 |
package Data::Transform::Deep; |
package Data::Mungle::Transform::Deep; |
72 |
|
|
73 |
use strict; |
use strict; |
74 |
use warnings; |
use warnings; |
76 |
require Exporter; |
require Exporter; |
77 |
our @ISA = qw( Exporter ); |
our @ISA = qw( Exporter ); |
78 |
our @EXPORT_OK = qw( |
our @EXPORT_OK = qw( |
79 |
&var_NumericalHashToArray |
&expand |
80 |
&var_deref |
&deep_copy |
81 |
&var_mixin |
&merge_to |
|
&object2hash |
|
|
&hash2object |
|
|
&refexpr2perlref |
|
82 |
); |
); |
83 |
# &getStructSlotByStringyAddress |
|
84 |
|
|
85 |
use attributes; |
use attributes; |
86 |
use Data::Dumper; |
use Data::Dumper; |
87 |
|
use Iterate; |
88 |
|
|
89 |
|
use Pitonyak::DeepCopy; |
90 |
|
use Data::Mungle::Transform::Encode qw( latin_to_utf8 latin_to_utf8_scalar utf8_to_latin utf8_to_latin_scalar ); |
91 |
|
use Data::Mungle::Code::Ref qw( ref_slot ); |
92 |
|
|
93 |
sub var_NumericalHashToArray { |
sub numhash2list { |
94 |
my $vref = shift; |
my $vref = shift; |
95 |
#my $context = shift; |
#my $context = shift; |
96 |
if (ref $vref eq 'HASH') { |
if (ref $vref eq 'HASH') { |
106 |
} |
} |
107 |
$vref->{$_} = \@arr; |
$vref->{$_} = \@arr; |
108 |
} |
} |
109 |
var_NumericalHashToArray($vref->{$_}); |
numhash2list($vref->{$_}); |
110 |
} |
} |
111 |
# } else { |
# } else { |
112 |
# #$vref->{$_} = scalar2iso($vref->{$_}); |
# #$vref->{$_} = scalar2iso($vref->{$_}); |
116 |
} |
} |
117 |
|
|
118 |
|
|
119 |
sub var_deref { |
# FIXME: could this be refactored using expand? |
120 |
|
# btw: "expand": look at scripts@CPAN (System Administration): |
121 |
|
# there is a perl make with perl |
122 |
|
sub _var_deref_test { |
123 |
my $obj = shift; |
my $obj = shift; |
124 |
|
my $options = shift; |
125 |
my $result; |
my $result; |
126 |
if ((ref $obj) eq 'ARRAY') { |
if ((ref $obj) eq 'ARRAY') { |
127 |
foreach (@{$obj}) { |
foreach (@{$obj}) { |
128 |
my $ref = ref $_; |
my $ref = ref $_; |
129 |
if ($ref) { |
if ($ref) { |
130 |
push(@{$result}, var_deref($_)); |
push(@{$result}, var_deref($_, $options)); |
131 |
|
#undef $_; |
132 |
} else { |
} else { |
133 |
push(@{$result}, $_); |
#push(@{$result}, $_); |
134 |
|
push(@{$result}, deep_copy($_)); |
135 |
} |
} |
136 |
|
#undef $_ if $options->{destroy}; |
137 |
|
#$options->{destroy}->($_) if $options->{destroy}; |
138 |
} |
} |
139 |
# TODO: "} elsif (ref $obj eq 'HASH') { [...] } else { croak 'could not deref blah'; }" ??? |
# TODO: "} elsif (ref $obj eq 'HASH') { [...] } else { croak 'could not deref blah'; }" ??? |
140 |
} else { |
} else { |
142 |
my $key = $_; |
my $key = $_; |
143 |
my $ref = ref $obj->{$_}; |
my $ref = ref $obj->{$_}; |
144 |
if ($ref) { |
if ($ref) { |
145 |
$result->{$_} = var_deref($obj->{$_}); |
$result->{$_} = var_deref($obj->{$_}, $options); |
146 |
|
#undef $obj->{$_}; |
147 |
} else { |
} else { |
148 |
$result->{$_} = $obj->{$_}; |
#$result->{$_} = $obj->{$_}; |
149 |
|
$result->{$_} = deep_copy($obj->{$_}); |
150 |
} |
} |
151 |
|
#undef $obj->{$_} if $options->{destroy}; |
152 |
|
#$options->{destroy}->($obj->{$_}) if $options->{destroy}; |
153 |
} |
} |
154 |
} |
} |
155 |
|
#undef $obj if $options->{destroy}; |
156 |
|
$options->{cb_destroy}->($obj) if $options->{cb_destroy}; |
157 |
return $result; |
return $result; |
158 |
} |
} |
159 |
|
|
160 |
|
|
161 |
|
# convert values in hash to utf8 (and back) to be ready for (e.g.) encapsulation in XML |
162 |
|
# but still using the known latin locale stuff |
163 |
|
sub expand { |
164 |
|
|
165 |
|
my $obj = shift; |
166 |
|
my $options = shift; |
167 |
|
my $result; |
168 |
|
|
169 |
|
#print "ref: ", ref $obj, "\n"; |
170 |
|
|
171 |
|
if (ref $obj eq 'ARRAY') { |
172 |
|
|
173 |
|
IterArray @$obj, sub { |
174 |
|
my $item; |
175 |
|
# if current item is a reference ... |
176 |
|
if (ref $_[0]) { |
177 |
|
$item = $_[0]; |
178 |
|
# if $options->{childObj2string} is TRUE or STRING don't expand referenced object, |
179 |
|
# instead replace it by per option choosed string (default: o_<classname>_<ref type>_<guid> ) |
180 |
|
if ($item && $options->{childObj2string}) { |
181 |
|
$item = childObj2string($item, $options->{childObj2string}); |
182 |
|
} else { |
183 |
|
# ... expand structure recursively |
184 |
|
$item = expand($_[0], $options); |
185 |
|
} |
186 |
|
# destroy item via seperate callback method (a POST) if requested |
187 |
|
#$options->{cb}->{destroy}->($_[0]) if $options->{destroy}; |
188 |
|
|
189 |
|
# ... assume plain scalar |
190 |
|
} else { |
191 |
|
#$item = deep_copy($_[0]); |
192 |
|
$item = $_[0]; |
193 |
|
# conversions/encodings |
194 |
|
$item = latin_to_utf8_scalar($item) if ($item && $options->{utf8}); |
195 |
|
$item = utf8_to_latin_scalar($item) if ($item && $options->{to_latin}); |
196 |
|
} |
197 |
|
#push(@{$result}, $item) if $item; # use item only if not undef (TODO: make configurable via $options) |
198 |
|
push(@{$result}, $item); # use item in any case |
199 |
|
|
200 |
|
} |
201 |
|
|
202 |
|
} elsif (ref $obj eq 'CODE') { |
203 |
|
#print Dumper($obj); |
204 |
|
#exit; |
205 |
|
|
206 |
|
# TODO: "} elsif (ref $obj eq 'HASH') { [...] } else { croak 'could not deref blah'; }" ??? |
207 |
|
} elsif (ref $obj) { |
208 |
|
|
209 |
|
IterHash %$obj, sub { |
210 |
|
my $item; |
211 |
|
|
212 |
|
# if current item is a reference ... |
213 |
|
if (ref $_[1]) { |
214 |
|
$item = $_[1]; |
215 |
|
# if $options->{childObj2string} is TRUE or STRING don't expand referenced object, |
216 |
|
# instead replace it by per option choosed string (default: o_<classname>_<ref type>_<guid> ) |
217 |
|
if ($item && $options->{childObj2string} && !(ref $_[1] eq "ARRAY") && !(ref $_[1] eq "HASH")) { |
218 |
|
$item = childObj2string($item, $options->{childObj2string}); |
219 |
|
} else { |
220 |
|
# ... expand structure recursively |
221 |
|
$item = expand($_[1], $options); |
222 |
|
} |
223 |
|
# destroy item via seperate callback method (a POST) if requested |
224 |
|
#$options->{cb}->{destroy}->($_[1]) if $options->{destroy}; |
225 |
|
|
226 |
|
# ... assume plain scalar |
227 |
|
} else { |
228 |
|
#$item = deep_copy($_[1]); |
229 |
|
$item = $_[1]; |
230 |
|
# conversions/encodings |
231 |
|
$item = latin_to_utf8_scalar($item) if ($item && $options->{utf8}); |
232 |
|
$item = utf8_to_latin_scalar($item) if ($item && $options->{to_latin}); |
233 |
|
} |
234 |
|
#$result->{$_[0]} = $item if $item; # use item only if not undef (TODO: make configurable via $options) |
235 |
|
$result->{$_[0]} = $item; # use item in any case |
236 |
|
} |
237 |
|
|
238 |
|
} else { |
239 |
|
#die ("not a reference!"); |
240 |
|
$result = $obj; |
241 |
|
|
242 |
|
} |
243 |
|
|
244 |
|
# convert all values to utf8 (inside complex struct) |
245 |
|
# now done in core-item-callbacks via Greg London's "Iterate" from CPAN |
246 |
|
# latin_to_utf8($result) if ($options->{utf8}); |
247 |
|
|
248 |
|
# destroy persistent object from memory to be sure to get a fresh one next time |
249 |
|
#undef $obj if $options->{destroy}; |
250 |
|
#$options->{cb_destroy}->($obj) if $options->{cb_destroy}; |
251 |
|
#$options->{cb}->{destroy}->($obj) if $options->{destroy}; |
252 |
|
|
253 |
|
return $result; |
254 |
|
} |
255 |
|
|
256 |
|
|
257 |
|
|
258 |
my @indexstack; |
my @indexstack; |
259 |
sub var_traverse_mixin_update { |
sub _var_traverse_mixin_update_old { |
260 |
my $obj = shift; |
my $obj = shift; |
261 |
my $data = shift; |
my $data = shift; |
262 |
my $bool_recursion = shift; |
my $bool_recursion = shift; |
300 |
#return $result; |
#return $result; |
301 |
} |
} |
302 |
|
|
303 |
sub object2hash { |
sub merge_to { |
304 |
my $object = shift; |
_hash2object(@_); |
305 |
my $options = shift; |
# TODO: |
306 |
my $deref = var_deref($object); |
# re-implement using CPAN's "Iterate" and/or a modified Hash::Merge. |
|
var2utf8($deref) if ($options->{utf8}); |
|
|
return $deref; |
|
307 |
} |
} |
308 |
|
|
309 |
|
|
310 |
# todo: maybe do diff(s) here sometimes!? |
# todo: maybe do diff(s) here sometimes!? |
311 |
sub hash2object { |
sub _hash2object { |
312 |
my $object = shift; |
my $object = shift; |
313 |
my $data = shift; |
my $data = shift; |
314 |
my $options = shift; |
my $options = shift; |
315 |
|
|
316 |
|
#print "hash2object", "\n"; |
317 |
|
|
318 |
# "patch" needed 'cause php passes numerical-indexed-arrays as hash-tables, |
# "patch" needed 'cause php passes numerical-indexed-arrays as hash-tables, |
319 |
# this method corrects this |
# this method corrects this |
320 |
var_NumericalHashToArray($data) if ($options->{php}); |
numhash2list($data) if ($options->{php}); |
321 |
|
|
322 |
# utf8-conversion/-encoding (essential for I18N) |
# utf8-conversion/-encoding (essential for I18N) |
323 |
var_utf2iso($data) if ($options->{utf8}); |
utf8_to_latin($data) if ($options->{utf8}); |
324 |
|
|
325 |
# get fresh object from database |
# get fresh object from database |
326 |
# todo: |
# todo: |
329 |
#my $obj = $self->getObject($oid); |
#my $obj = $self->getObject($oid); |
330 |
|
|
331 |
# mix changes into fresh object and save it back |
# mix changes into fresh object and save it back |
332 |
hash2object_traverse_mixin($object, $data); |
_hash2object_traverse_mixin($object, $data, 0, $options); |
333 |
|
|
334 |
# done in core mixin function? |
# done in core mixin function? |
335 |
#$self->{storage}->update($obj); |
#$self->{storage}->update($obj); |
352 |
#my @indexstack; |
#my @indexstack; |
353 |
|
|
354 |
# traverse a deeply nested structure, mix in values from given hash, update underlying tangram-object |
# traverse a deeply nested structure, mix in values from given hash, update underlying tangram-object |
355 |
sub hash2object_traverse_mixin { |
sub _hash2object_traverse_mixin { |
356 |
my $object = shift; |
my $object = shift; |
357 |
my $data = shift; |
my $data = shift; |
358 |
my $bool_recursion = shift; |
my $bool_recursion = shift; |
359 |
|
my $options = shift; |
360 |
|
|
361 |
# clear our key - stack if we are called from user-code (non-recursively) |
# clear our key - stack if we are called from user-code (non-recursively) |
362 |
@indexstack = () if (!$bool_recursion); |
@indexstack = () if (!$bool_recursion); |
370 |
# what's exactly done here? hmmm.... it works ;) |
# what's exactly done here? hmmm.... it works ;) |
371 |
# maybe a HACK: please try not to use "IntrHash"es, maybe this cannot handle them!!! |
# maybe a HACK: please try not to use "IntrHash"es, maybe this cannot handle them!!! |
372 |
# extend! check! |
# extend! check! |
373 |
if ((attributes::reftype($object) eq 'HASH') && (ref($object) ne 'HASH') && (ref($object) ne 'ARRAY')) { |
|
374 |
|
#print attributes::reftype($object), "\n"; |
375 |
|
|
376 |
|
# V1 |
377 |
|
#if ((attributes::reftype($object) eq 'HASH') && (ref($object) ne 'HASH') && (ref($object) ne 'ARRAY')) { |
378 |
|
# V2 |
379 |
|
my $reftype = attributes::reftype($object); |
380 |
|
#print "reftype: '$reftype'", "\n"; |
381 |
|
if ($reftype eq 'HASH') { |
382 |
|
|
383 |
# print STDERR "===", "reftype: ", attributes::reftype($obj), "\n"; |
# print STDERR "===", "reftype: ", attributes::reftype($obj), "\n"; |
384 |
|
|
385 |
|
my @fields; |
386 |
# loop through fields of object (Tangram-object) |
# loop through fields of object (Tangram-object) |
387 |
foreach (keys %{$object}) { |
@fields = keys %{$object}; |
388 |
push @indexstack, $_; |
|
389 |
|
# loop through fields of to.be.injected-data (arbitrary Perl-data-structure) |
390 |
|
@fields = keys %{$data} if $options->{init}; |
391 |
|
# @fields = keys %{$data} if $options->{mixin}; |
392 |
|
|
393 |
|
foreach (@fields) { |
394 |
|
my $field = $_; |
395 |
|
push @indexstack, $field; |
396 |
|
|
397 |
# determine type of object |
# determine type of object |
398 |
my $ref = ref $object->{$_}; |
my $ref = ref $object->{$field}; |
399 |
# print STDERR "attrname: $_ ATTRref: $ref", "\n"; |
# print STDERR "attrname: $_ ATTRref: $ref", "\n"; |
400 |
if ($ref) { |
if ($ref) { |
401 |
hash2object_traverse_mixin($object->{$_}, $data, 1); |
_hash2object_traverse_mixin($object->{$field}, $data, 1, $options); |
402 |
} else { |
} else { |
403 |
my $val = getStructSlotByStringyAddress($data, \@indexstack); |
my $val = ref_slot($data, \@indexstack); |
404 |
$object->{$_} = $val; |
|
405 |
|
#print Dumper($options); |
406 |
|
my $field_target = $field; |
407 |
|
if (my $pattern = $options->{pattern_strip_key}) { |
408 |
|
print "pattern: $pattern", "\n"; |
409 |
|
$field_target =~ s/$pattern//; |
410 |
|
print "field: $field_target", "\n"; |
411 |
|
} |
412 |
|
|
413 |
|
$object->{$field_target} = $val if defined $val; |
414 |
} |
} |
415 |
pop @indexstack; |
pop @indexstack; |
416 |
} |
} |
441 |
push @indexstack, $i; |
push @indexstack, $i; |
442 |
my $ref = ref $_; |
my $ref = ref $_; |
443 |
# print STDERR "attrname: $_ ATTRref: $ref", "\n"; |
# print STDERR "attrname: $_ ATTRref: $ref", "\n"; |
444 |
if ($ref && $_) { |
# if ($ref && $_) { |
445 |
hash2object_traverse_mixin($_, $data, 1); |
if ($ref) { |
446 |
|
_hash2object_traverse_mixin($_, $data, 1, $options); |
447 |
} else { |
} else { |
448 |
$object->[$i] = $_; |
$object->[$i] = $_ if defined $_; |
449 |
} |
} |
450 |
pop @indexstack; |
pop @indexstack; |
451 |
$i++; |
$i++; |
452 |
} |
} |
453 |
|
|
454 |
|
=pod |
455 |
|
# object? |
456 |
|
} else { |
457 |
|
print "reference: ", ref $object, "\n"; |
458 |
|
print "reftype: ", $reftype, "\n"; |
459 |
|
die(__PACKAGE__ . "->_hash2object_traverse_mixin: can not handle this!"); |
460 |
|
=cut |
461 |
|
|
462 |
} |
} |
463 |
|
|
464 |
} |
} |
465 |
|
|
466 |
|
|
467 |
# this function seems to do similar stuff like these below (refexpr2perlref & co.) |
# ACK's go to Randal L. Schwartz <merlyn@stonehenge.com> |
468 |
sub getStructSlotByStringyAddress { |
# on the website: |
469 |
my $var = shift; |
# This text is copyright by Miller-Freeman, Inc., and is used with their permission. |
470 |
my $indexstack_ref = shift; |
# Further distribution or use is not permitted. |
471 |
my @indexstack = @{$indexstack_ref}; |
# please visit http://www.stonehenge.com/merlyn/UnixReview/col30.html |
472 |
my $joiner = '->'; |
sub deep_copy1 { |
473 |
my @evlist; |
my $this = shift; |
474 |
foreach (@indexstack) { |
if (not ref $this) { |
475 |
my $elem; |
$this; |
476 |
if ($_ =~ m/\d+/) { $elem = "[$_]"; } |
} elsif (ref $this eq "ARRAY") { |
477 |
if ($_ =~ m/\D+/) { $elem = "{$_}"; } |
[map deep_copy1($_), @$this]; |
478 |
push @evlist, $elem; |
} elsif (ref $this eq "HASH") { |
479 |
} |
+{map { $_ => deep_copy1($this->{$_}) } keys %$this}; |
480 |
my $evstring = join($joiner, @evlist); |
} elsif (ref $this eq "CODE") { |
481 |
$evstring = 'return $var->' . $evstring . ';'; |
$this; |
482 |
#print "ev: $evstring\n"; |
} else { die "deep_copy1 asks: what type is $this?" } |
483 |
return eval($evstring); |
#} else { print "deep_copy asks: what type is $this?", "\n"; } |
484 |
} |
} |
485 |
|
|
486 |
|
# ACK's go to Andrew Pitonyak |
487 |
|
# Copyright 2002, Andrew Pitonyak (perlboy@pitonyak.org) |
488 |
|
# please visit: http://www.pitonyak.org/code/perl/Pitonyak/DeepCopy.pm.html |
489 |
|
sub deep_copy { |
490 |
|
Pitonyak::DeepCopy::deep_copy(@_); |
491 |
|
} |
492 |
|
|
|
sub refexpr2perlref { |
|
493 |
|
|
494 |
|
sub childObj2string { |
495 |
my $obj = shift; |
my $obj = shift; |
496 |
my $expr = shift; |
my $option = shift; |
497 |
my $callbackMap = shift; |
my $classname = ref $obj; |
498 |
|
my $string; |
|
my $value; |
|
|
# detect for callback (code-reference) |
|
|
if (ref($expr) eq 'CODE') { |
|
|
$value = &$expr($obj); |
|
|
|
|
|
} elsif ($expr =~ m/->/) { |
|
|
# use expr as complex object reference declaration (obj->subObj->subSubObj->0->attribute) |
|
|
(my $objPerlRefString, my $parts) = refexpr2perlref_parts($expr); |
|
|
#print "\n", "expr: $expr"; |
|
|
#print "\n", "objPerlRefString: $objPerlRefString"; |
|
|
$value = eval('$obj' . '->' . $objPerlRefString); |
|
|
|
|
|
# if value isn't set, try to "fallback" to callbackMap |
|
|
# callbacks are applied this way: |
|
|
# take the last element of the expression parts and check if this string exists as a key in the callback-map |
|
|
if (!$value && $callbackMap) { |
|
|
#print Dumper($callbackMap); |
|
|
|
|
|
# prepare needle |
|
|
my @parts = @$parts; |
|
|
my $count = $#parts; |
|
|
my $needle = $parts[$count]; |
|
|
|
|
|
# prepare haystack |
|
|
my @haystack = keys %$callbackMap; |
|
|
if (grep($needle, @haystack)) { |
|
|
$value = $callbackMap->{$needle}->(); |
|
|
#print "value: ", $value, "\n"; |
|
|
} |
|
|
} |
|
|
|
|
|
} else { |
|
|
# use expr as simple scalar key (attributename) |
|
|
$value = $obj->{$expr}; |
|
|
} |
|
|
|
|
|
return $value; |
|
499 |
|
|
500 |
|
if($option == 1) { |
501 |
|
$string = "o_" . $obj->{guid} . "_" . $classname; |
502 |
|
} |
503 |
|
return $string; |
504 |
} |
} |
505 |
|
|
506 |
|
|
|
sub refexpr2perlref_parts { |
|
|
my $expr = shift; |
|
|
|
|
|
# split expression by dereference operators first |
|
|
my @parts_pure = split(/->/, $expr); |
|
|
|
|
|
# wrap []'s around each part, if it consists of numeric characters only (=> numeric = array-index), |
|
|
# use {}'s, if there are word-characters in it (=> alphanumeric = hash-key) |
|
|
my @parts_capsule = @parts_pure; |
|
|
map { |
|
|
m/^\d+$/ && ($_ = "[$_]") || ($_ = "{$_}"); |
|
|
} @parts_capsule; |
|
|
|
|
|
# join parts with dereference operators together again and return built string |
|
|
return (join('->', @parts_capsule), \@parts_pure); |
|
|
} |
|
|
|
|
507 |
1; |
1; |
508 |
|
__END__ |