[ragel-users] Consuming input

Adrian Thurston thurston at complang.org
Thu Apr 7 21:11:26 UTC 2011

See the attached code. Note the "| any*". This is a trick to make ragel 
accept any prefix of the machine. But it only works in this case because 
you want the machine to accept any string at all. What is really needed 
is an any-prefix operator (in the TODO for years).

If this is too cryptic, you may want to consider using state charts.


On 04/06/2011 06:47 AM, Wilson Barros wrote:
> main:='O'@init ((any-[CTRDH])*
> ('C'$ccaOn(any-'c')*'c'$ccaOff
> |'T'$txOn(any-'t')*'t'$txOff
> |'R'$rxOn(any-'r')*'r'$rxOff
> |'D'$dozeOn(any-'A')*'A'$dozeOff
> |'H'$hibOn(any-'A')*'A'$hibOff #)
> )*;

Adrian D. Thurston
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