word.l

语法分析 语法分析

%{
{*
    下面的例子改编自lex和yacc第二版
    识别更多的话

 *}
 program IsVerb;

{$APPTYPE CONSOLE}

uses
  SysUtils, LexLib;
%}
%%

[\t ]+		{* 忽略空格 *} ;

is |
am |
are |
were |
was |
be |
being |
been |
do |
does |
did |
will |
would |
should |
can |
could |
has |
have |
had |
go		writeln(format('%s是动词', [yytext])); 

very |
simply |
gently |
quietly |
calmly |
angrily		writeln(format('%s是副词', [yytext])); 

to |
from |
behind |
above |
below |
between |
below		writeln(format('%s是介词', [yytext])); 

if |
then |
and |
but |
or		writeln(format('%s是连词', [yytext])); 

their |
my |
your |
his |
her |
its		writeln(format('%s是形容词', [yytext])); 

I |
you |
he |
she |
we |
they		writeln(format('%s是代词', [yytext])); 


[a-zA-Z]+       writeln(format('%s无法识别', [yytext])); 

\&.|\n		ECHO; {* 其它 */ }

%%

begin
  yylex;
end.