🚀 go-pugleaf

I am interested in the LEX/YACC sources too.

Here are two little  lex  sources  I  wrote,  though  I  am  a
newcomer  to  unix.  The  first is to translate all characters
into upper  case  except  Ada  reserved  words,  comments  and
strings. (I forgot character literals.)
Known bugs: Character literals are translated,
	    first word of text sometimes treated erroneously

The second is to remove/add comment starters  "--"  to  lines.
(To enable i.e. adjustment procedures in comment blocks.)

					Horst
Mailing address: mcvax!unido!ztivax!siedap!kern

SEP  [ \n()*+-./:;<=>|&]
KEYW (abort|abs|access|all|and|array|at|begin|accept|body|case|constant|declare|delay|delta|digits|do|else|elsif|end|entry|exception|exit|for|function|generic|goto|if|in|is|limited|loop|mod|new|not|null|of|or|others|out|package|pragma|private|procedure|raise|raise|range|record|rem|renames|return|reverse|select|separate|subtype|task|terminate|then|type|use|when|while|with|xor)
%%
^{KEYW}/{SEP} ECHO;
{SEP}{KEYW}/{SEP} ECHO;
[a-z]  putchar (yytext [0] + 'A' - 'a');
--.*            |
\"[^"\n]*\"     |
[^a-z]          ECHO;

--------------------- 2nd crime---------------------
%START TAB
%%
^[ \t]*--   { int i;
	      for (i=0; i<yyleng-2; i++)
		  output (yytext[i]);
	     printf ("  ");
	    }
^[^ \t]         |
^" "[^ ]        |
^"  "[^ ]       {
		 printf ("-- ");
		 output (yytext[yyleng-1]);
		}
^\t+        {for ( ; yyleng>1; yyleng--)
		output ('\t');
	     BEGIN TAB;
	    }
<TAB>" "*   ECHO;
<TAB>[^ ]   {printf ("     -- ");
	     ECHO;
	     BEGIN 0;
	    }
^" "*       { int i;
	      for (i=0; i<yyleng-3; i++)
		     output (' ');
	      printf ("-- ");
	    }