52 lines
830 B
Text
52 lines
830 B
Text
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ws ([ \t\n]*)
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arrow ("==>")
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letter ([a-zA-Z_])
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digit ([0-9])
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identifier ({letter}({letter}|{digit})*)
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%start COM CAL CON
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%{
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#include "Lpars.h"
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#include "decl.h"
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int special, n_haakjes;
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%}
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%%
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"/*" BEGIN COM;
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<COM>[^\n\*]*"*"+"/" BEGIN 0;
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<COM>[^\n^\*]*"*"+ ;
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<COM>[^\n\*]*"\n" ;
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";" return( ';');
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"." return( '.');
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"," return( ',');
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":" return( ':');
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"@" return( '@');
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"@if"{ws} return( IF);
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"@elsif"{ws} return( ELSIF);
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"@else"{ws} return( ELSE);
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"@fi"{ws} return( FI);
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"..." return( MORE);
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{arrow} return( ARROW);
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{identifier} return( IDENTIFIER);
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"(" { BEGIN CON; n_haakjes = 1; yymore();}
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<CON>[^()]*"(" { n_haakjes++; yymore();}
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<CON>[^()]*")" { if ( n_haakjes == 1) {
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BEGIN 0;
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return( CONDITION);
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}
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else {
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n_haakjes--;
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yymore();
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}
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}
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{ws} ;
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