Akim Demaille 535281f0ff examples: bistromathic: don't use Flex ...

This example will soon use GNU readline, so its scanner should be easy
to use (concurrently) on strings, not streams.  This is not a place
where Flex shines, and anyway, these are examples of Bison, not Flex.
There's already lexcalc and reccalc that demonstrate the use of Flex.

* examples/c/bistromathic/scan.l: Remove.
* examples/c/bistromathic/parse.y (yylex): New.
Adjust dependencies.

2020-02-29 17:52:08 +01:00

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