Re^2: How to Intercept Variable Access

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Re^3: How to Intercept Variable Access by LanX (Saint) on Sep 16, 2024 at 12:37 UTC
Your welcome, have fun experimenting with tied variables. FWIW, your use case is not something I would solve with `tie` but just a function `CD()` returning the cwd, like `print CD;` setting the cwd when called with an argument, like `CD('..')` Even the `CD="/tmp"` syntax can be achieved with an attribute `:lvalue` see `perlsub` Cheers Rolf _{(addicted to the Perl Programming Language :) see Wikisyntax for the Monastery}	[reply] [d/l] [select]
Re^4: How to Intercept Variable Access by Corion (Patriarch) on Sep 16, 2024 at 12:43 UTC
The real fun starts with `local`: `sub do_stuff { local $CD = tempdir(); croak "No Makefile found in $CD" unless -f 'Makefile'; croak "No .git directory in $CD" unless -d '.git'; ... }` [download]	[reply] [d/l] [select]
Re^5: How to Intercept Variable Access by LanX (Saint) on Sep 16, 2024 at 14:31 UTC
Well yes if you want the full syntactic sugar of variables, including interpolation, localization and ... Though I'd probably prefer a module exporting both. A `cd` function and a magic `$CD` I haven't checked, but I seem to remember that shell languages like bash provide both too°. Cheers Rolf _{(addicted to the Perl Programming Language :) see Wikisyntax for the Monastery} Edit °) well almost > `PWD` A pathname of the current working directory `echo "$PWD"`	[reply] [d/l] [select]