src/scanner.l

   1 %{
   2 #include <stdlib.h>
   3 %}
   4 WHITE_SPACE [\ \t\b]
   5 ALNUM [A-Za-z0-9_]
   6 QUOTED_STRING \"([^\"]+|\\.)*\"
   7 UNQUOTED_STRING {ALNUM}+
   8 HEX_NUMBER 0[xX][0-9a-fA-F]+
   9 OCT_NUMBER 0[0-7]+
  10 DEC_NUMBER [\+\-]?[0-9]+
  11 FLOAT_NUMBER [\+\-]?[0-9]*\.[0-9]+([eE][\+\-][0-9]+)?
  12 NUMBER ({FLOAT_NUMBER}|{HEX_NUMBER}|{OCT_NUMBER}|{DEC_NUMBER})
  13 BOOL_TRUE (true|yes|on)
  14 BOOL_FALSE (false|no|off)
  15 COMMENT #.*
  16
  17 %%
  18 {WHITE_SPACE}   |
  19 {COMMENT}       {/* nothing */}
  20
  21 \n                      {return (EOL);}
  22 "/"                     {return (SLASH);}
  23 "<"                     {return (OPENBRAC);}
  24 ">"                     {return (CLOSEBRAC);}
  25 {NUMBER}                {yylval.number = strtod (yytext, NULL); return (NUMBER);}
  26 {BOOL_TRUE}             {yylval.boolean = 1; return (TRUE);}
  27 {BOOL_FALSE}            {yylval.boolean = 0; return (FALSE);}
  28
  29 {QUOTED_STRING}         {yylval.string = yytext; return (QUOTED_STRING);}
  30 {UNQUOTED_STRING}       {yylval.string = yytext; return (UNQUOTED_STRING);}
  31
  32 %%