Re: Re: Matching over multiple lines in a scalar

Thanks for the help on this. By the way - just out of curiosity - why pass a hash reference to Data::Dumper instead of just the hash?

«Rich36»

Comment on Re: Re: Matching over multiple lines in a scalar

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Re: Re: Re: Matching over multiple lines in a scalar by BrowserUk (Patriarch) on Oct 27, 2002 at 22:51 UTC
If you pass the hash, it gets flattened and passed as a list of 30 seperate scalars, the association between key=>value pairs is lost. By passing the reference, Data::Dumper knows it a hash, and outputs it as such, with the Key=>value pairs clearly associated and shown as being a part of a compound entity. In fact, you can then write this output to a file and then read it back, eval the string and it will recontruct the hash in memory. Often used as a cheap man DB. Run the program both ways to see the difference. Nah! Your thinking of Simon Templar, originally played by Roger Moore and later by Ian Ogilvy	[reply] [d/l]

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Re: Re: Re: Matching over multiple lines in a scalar
by BrowserUk (Patriarch) on Oct 27, 2002 at 22:51 UTC

If you pass the hash, it gets flattened and passed as a list of 30 seperate scalars, the association between key=>value pairs is lost. By passing the reference, Data::Dumper knows it a hash, and outputs it as such, with the Key=>value pairs clearly associated and shown as being a part of a compound entity.

In fact, you can then write this output to a file and then read it back, eval the string and it will recontruct the hash in memory. Often used as a cheap man DB.

Run the program both ways to see the difference.

Nah! Your thinking of Simon Templar, originally played by Roger Moore and later by Ian Ogilvy

[reply]
[d/l]