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pcalcl.l
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pcalcl.l
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%{
/*
** pcalc LEX
*/
#include "ctype.h"
#include "string.h"
#include "hocdecl.h"
#include "symbol.h"
#include "pcalc.h"
#include "convert.h"
/* avoid fwrite() gcc warning */
#define fwrite(ptr, size, num, fp) ({ ssize_t s = fwrite(ptr, size, num, fp); s; })
extern YYSTYPE yylval;
extern int lineno;
char *name;
int nchar, nword, nline ;
int count(void);
//#define TEST
#define RET_EACH
%}
%%
"STORE" |
"store" {
count();
#ifdef RET_EACH
return(STORE);
#endif
}
"RESTORE" |
"restore" {
count();
#ifdef RET_EACH
return(RESTORE);
#endif
}
"TO" |
"to" {
count();
#ifdef RET_EACH
return(TO);
#endif
}
"FROM" |
"from" {
count();
#ifdef RET_EACH
return(FROM);
#endif
}
"OR" |
"or" {
count();
#ifdef RET_EACH
return('|');
#endif
}
"XOR" |
"xor" {
count();
#ifdef RET_EACH
return('X');
#endif
}
"AND" |
"and" {
count();
#ifdef RET_EACH
return('&');
#endif
}
0x[0-9a-fA-F]+[0-9a-fA-F]* {
#ifdef TEST
printf(" Hexadec: [ %s ]\n", yytext);
#endif
yylval.val = (double) hextoll(yytext + 2);
#ifdef RET_EACH
return(NUMBER);
#endif
}
0[by][01]+[01]* {
#ifdef TEST
printf(" Binary: [ %s ]\n", yytext);
#endif
yylval.val = bintol(yytext + 2);
#ifdef RET_EACH
return(NUMBER);
#endif
}
0c[0-7]+[0-7]* {
#ifdef TEST
printf(" Octal: [ %s ]\n", yytext);
#endif
yylval.val = otol(yytext + 2);
#ifdef RET_EACH
return(NUMBER);
#endif
}
[0-9]+[0-9]* {
#ifdef TEST
printf(" Decimal: [ %s ]\n", yytext);
#endif
yylval.val = (double) atoll(yytext);
#ifdef RET_EACH
return(NUMBER);
#endif
}
"."[0-9]+ |
[0-9]+"."[0-9]* |
[0-9]+[dDeE][+-]?[0-9]+ |
[0-9]+"."[0-9]*[dDeE][+-]?[0-9]+ |
"."[0-9]+[dDeE][+-]?[0-9]+ {
#ifdef TEST
printf(" Decimal: [ %s ]\n", yytext);
#endif
yylval.val = (double) atof(yytext);
#ifdef RET_EACH
return(NUMBER);
#endif
}
\".*\" {
Symbol *sp;
#ifdef TEST
printf(" string: [ %s ]\n", yytext);
#endif
sp = lookup_sym(yytext);
if(sp)
{
yylval.sym = sp;
return(sp->type);
}
else
{
/*
* Kill " "
*/
yytext[strlen(yytext) - 1] = '\0';
sp = install_sym(yytext + 1, STR, 0.0);
sp->u.str = sp->name; //str = strval
yylval.sym = sp;
}
#ifdef RET_EACH
return(STR);
#endif
}
\/\/.* {
#ifdef TEST
printf(" Comment: [ %s ]\n", yytext);
#endif
#ifdef RET_EACH
//return(COMM);
#endif
}
[a-zA-Z_]+[a-zA-Z0-9_]* {
Symbol *sp;
#ifdef TEST
printf(" Ident: [ %s ]\n", yytext);
#endif
sp = lookup_sym(yytext);
if(sp)
{
yylval.sym = sp;
if(sp->type == BUILTIN)
{
#ifdef TEST
printf("Bultin: %s\n", sp->name );
#endif
#ifdef RET_EACH
return(BUILTIN);
#endif
}
else if(sp->type == IBUILTIN)
{
#ifdef TEST
printf("Bultin: %s\n", sp->name );
#endif
#ifdef RET_EACH
return(IBUILTIN);
#endif
}
else if(sp->type == VAR)
{
#ifdef TEST
printf("Var: %s\n", sp->name );
#endif
#ifdef RET_EACH
return(VAR);
#endif
}
}
else
{
sp = install_sym(yytext, VAR, 0.0);
yylval.sym = sp;
//yylval.sym->u.val = 0.0;
#ifdef RET_EACH
return(VAR);
#endif
}
}
$[a-zA-Z_]+[a-zA-Z0-9_]* {
yylval.sym = lookup_sym(yytext);
if(!yylval.sym)
{
yylval.sym =
install_sym(yytext, STRVAR, 0.0);
}
#ifdef TEST
printf(" Stringvar: [ %s ]\n", yytext);
#endif
#ifdef RET_EACH
return(STRVAR);
#endif
}
[\r] {
#ifdef TEST
printf(" Comment: [ %s ]\n", yytext);
#endif
#ifdef RET_EACH
lineno++;
//return(COMM);
#endif
}
[\n] { }
[ \t]+ {
#ifdef TEST
//printf(" White: [ %s ]\n", yytext);
#endif
#ifdef RET_EACH
//return(WHITE);
#endif
}
";" {
count();
#ifdef RET_EACH
return(';');
#endif
}
"{" {
count();
#ifdef RET_EACH
return('{');
#endif
}
"}" {
count();
#ifdef RET_EACH
return('}');
#endif
}
"," {
count();
#ifdef RET_EACH
return(',');
#endif
}
":" {
count();
#ifdef RET_EACH
return(':');
#endif
}
"=" {
count();
#ifdef RET_EACH
return('=');
#endif
}
"(" {
count();
#ifdef RET_EACH
return('(');
#endif
}
")" {
count();
#ifdef RET_EACH
return(')');
#endif
}
"[" {
count();
#ifdef RET_EACH
return('[');
#endif
}
"]" {
count();
#ifdef RET_EACH
return(']');
#endif
}
"." {
count();
#ifdef RET_EACH
return('.');
#endif
}
"&" {
count();
#ifdef RET_EACH
return('&');
#endif
}
"!" {
count();
#ifdef RET_EACH
return('!');
#endif
}
"~" {
count();
#ifdef RET_EACH
return('~');
#endif
}
"-" {
count();
#ifdef RET_EACH
return('-');
#endif
}
"+" {
count();
#ifdef RET_EACH
return('+');
#endif
}
"*" {
count();
#ifdef RET_EACH
return('*');
#endif
}
"/" {
count();
#ifdef RET_EACH
return('/');
#endif
}
"%" {
count();
#ifdef RET_EACH
return('%');
#endif
}
"<<" {
count();
#ifdef RET_EACH
return('<');
#endif
}
">>" {
count();
#ifdef RET_EACH
return('>');
#endif
}
"^" {
count();
#ifdef RET_EACH
return('^');
#endif
}
"|" {
count();
#ifdef RET_EACH
return('|');
#endif
}
"?" {
count();
#ifdef RET_EACH
return('?');
#endif
}
. {
count();
#ifdef RET_EACH
//return(yytext[0]);
#endif
} /* ignore all the rest */
%%
int count(void)
{
return 0;
}