Re: Using a scalar as a constant?

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Re^2: Using a scalar as a constant? by Anonymous Monk on Oct 15, 2008 at 13:26 UTC
I should have given more details initially. The wxTE_MULTILINE value is being retrieved from an XML file so I'm running into the same issue. This is what my XML entry looks like if it helps `<text_ctrl internal_name="text_ctrl_details" parent="-1" value="" x_coordinate="100" y_coordinate="53" x_size="400" y_size="110" style="wxTE_MULTILINE" />` [download] I'm then using XML::Twig to parse the XML so my actual code looks like this for creating the TextCtrl: `Wx::TextCtrl->new( $parent_panel, -1, $entry->att('value'), [$entry->a +tt('x_coordinate'), $entry->att('y_coordinate')], [$entry->att('x_siz +e'), $entry->att('y_size')], $entry->att('style') );` [download] I've tried making it a function in the XML file and it still fails to show up. It does however work if I assign the constant to a scalar like you described. Any thoughts?	[reply] [d/l] [select]
Re^3: Using a scalar as a constant? by Corion (Patriarch) on Oct 15, 2008 at 13:29 UTC
Ah. If you have `my $style = 'wxTE_MULTILINE';` [download] and want to get at the value returned by the constant/function `wxTE_MULTILINE`, then you have to use eval: `print $style; $style = eval $style; die $@ if $@; print $style;` [download]	[reply] [d/l] [select]
Re^4: Using a scalar as a constant? by JavaFan (Canon) on Oct 15, 2008 at 14:10 UTC
An eval is possible, but some people rather avoid eval. You can avoid eval by making use of a symbolic reference: `my $style = 'wxTE_MULTILINE'; { no strict 'refs'; say &$style; # or: say $style->() }` [download]	[reply] [d/l]
Re^5: Using a scalar as a constant? by suaveant (Parson) on Oct 15, 2008 at 14:22 UTC
Re^6: Using a scalar as a constant? by JavaFan (Canon) on Oct 15, 2008 at 15:24 UTC
Some notes below your chosen depth have not been shown here
Re^4: Using a scalar as a constant? by Anonymous Monk on Oct 15, 2008 at 13:56 UTC
That did the trick...Thanks!	[reply]
Re^3: Using a scalar as a constant? by Anonymous Monk on Oct 15, 2008 at 13:46 UTC
why not use xrc?	[reply]
Re^4: Using a scalar as a constant? by Anonymous Monk on Oct 15, 2008 at 14:00 UTC
lol...I've never heard of xrc but looking at it know it seems I'm reinventing the wheel :(	[reply]


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