Re^3: Simulating Command Line History in Perl

Nm, I see about the second argument now. It seems to be working now. Thanks.

Just wish the ReadLine help text were more verbose about this.

Comment on Re^3: Simulating Command Line History in Perl

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Re^4: Simulating Command Line History in Perl by almut (Canon) on Apr 24, 2010 at 07:28 UTC
I see about the second argument now Just to be clear, the second argument is not for implementing a command history; it's for prompting with some default input as, for example, in install/configure scripts `... In which directory would you like the package to be installed? > /usr/local/foo` [download] where the editable input `"/usr/local/foo"` would appear at the prompt immediately, as a suggested default choice, without the user having to hit any cursor up/down keys etc. Implementing a history via that feature would be quite cumbersome, as you'd have to read out the respective history entries yourself and present a new prompt for each entry... With GNU readline the history is basic functionality, which should work without further ado, if you have the right backend module installed.	[reply] [d/l] [select]

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Re^4: Simulating Command Line History in Perl
by almut (Canon) on Apr 24, 2010 at 07:28 UTC

I see about the second argument now

Just to be clear, the second argument is not for implementing a command history; it's for prompting with some default input as, for example, in install/configure scripts

...
In which directory would you like the package to be installed?
> /usr/local/foo
[download]

where the editable input "/usr/local/foo" would appear at the prompt immediately, as a suggested default choice, without the user having to hit any cursor up/down keys etc. Implementing a history via that feature would be quite cumbersome, as you'd have to read out the respective history entries yourself and present a new prompt for each entry...

With GNU readline the history is basic functionality, which should work without further ado, if you have the right backend module installed.

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