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Use white-space as separator #70

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gdetrez opened this issue Nov 21, 2013 · 2 comments
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Use white-space as separator #70

gdetrez opened this issue Nov 21, 2013 · 2 comments
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@andreasabel
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enhancement lists Concerning list categories and separator/terminator/delimiter pragmas printer Concerning the generated printer
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2.8.4

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@gdetrez
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gdetrez commented Nov 21, 2013

A frequent question is how to use white-space as a separator, doing this:

separator A " ";

doesn't work and the answer is to use an empty string:

separator A "";

Maybe bnfc could accept " " as a separator and treat it like "".
@andreasabel andreasabel added this to the 2.8.4 milestone Nov 24, 2019
@andreasabel andreasabel self-assigned this Nov 24, 2019
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It is easy to treat white space separator rules as terminator "" rules. (Fixed.)
A bit more work is needed if we want to print the user provided white space separators faithfully. (Done for the Haskell backend, so far.)

andreasabel added a commit that referenced this issue Nov 24, 2019
@andreasabel
[ #70 ] allow whitespace separators; fix printing for Haskell
6c08635 
Some of the other backends will need adjustment of their printers as well.
@andreasabel andreasabel mentioned this issue Dec 17, 2019
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@andreasabel andreasabel added the lists Concerning list categories and separator/terminator/delimiter pragmas label Jan 4, 2020
andreasabel added a commit that referenced this issue Jan 20, 2020
@andreasabel
[ #70 C/C++/Java ] fixed printer for whitespace separators
94da64d
andreasabel added a commit that referenced this issue Jan 20, 2020
@andreasabel
[ #70 Ocaml ] fixed printer for whitespace separators
f800d49
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Printing now fixed for the other backends.

@andreasabel andreasabel added the printer Concerning the generated printer label Feb 2, 2021
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enhancement lists Concerning list categories and separator/terminator/delimiter pragmas printer Concerning the generated printer
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2.8.4
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