proposal: expand definition of filename type
Thu Sep 3 17:36:26 CEST 2009
I've found that sometimes it's handy to have filenames as lists--which
is the Erlang standard--and sometimes it's nice to treat them as
binaries. So here's a proposal: In file access functions, define a
filename to be a binary or an IO list.
1. file:file_open(<<"circus/images/clown.png">>, ).
2. file:file_open([Directory, BaseName, ".dat"], ).
* Filenames, which can potentially be long, don't expand into 8 or 16
bytes per character. (Think of code that manipulates a huge directory
tree, for example.)
* It's easy to add path names and extensions without copying entire lists.
* Just keep the filename module operating on lists?
* Should there be an alternate version of file:list_dir that returns a
list of binaries?
Note that there shouldn't be any compatibility issues, because lists
are a subset of IO lists.
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