Scanner


Regular expressions for eg. constant:

(Do not differentiate between formats (eg hex/decimal) here)

0[xX]{H}+{IS}?          { count(); return(CONSTANT); }
0{D}+{IS}?              { count(); return(CONSTANT); }
{D}+{IS}?               { count(); return(CONSTANT); }
'(\\.|[^\\'])+'         { count(); return(CONSTANT); }

{D}+{E}{FS}?            { count(); return(CONSTANT); }
{D}*"."{D}+({E})?{FS}?  { count(); return(CONSTANT); }
{D}+"."{D}*({E})?{FS}?  { count(); return(CONSTANT); }

If in quotes assume a string:
\"(\\.|[^\\"])*\"       { count(); return(STRING_LITERAL); }