D [0-9]
L [a-zA-Z_]
+L_DOLL [a-zA-Z_$]
H [a-fA-F0-9]
E [Ee][+-]?{D}+
FS (f|F|l|L)
/* forward declarations */
static const char *stringLiteral(void);
static void count(void);
+static void count_char(int);
static int process_pragma(const char *);
static int check_type(void);
static int isTargetKeyword(const char *s);
"inline" { count(); TKEYWORD99(INLINE); }
"restrict" { count(); TKEYWORD99(RESTRICT); }
{L}({L}|{D})* { count(); return(check_type()); }
+{L_DOLL}({L_DOLL}|{D})* {
+ if (options.dollars_in_ident)
+ {
+ count();
+ return(check_type());
+ }
+ else
+ REJECT;
+}
0[xX]{H}+{IS}? { count(); yylval.val = constVal(yytext); return(CONSTANT); }
0[0-7]*{IS}? { count(); yylval.val = constVal(yytext); return(CONSTANT); }
[1-9]{D}*{IS}? { count(); yylval.val = constVal(yytext); return(CONSTANT); }
\\ {
int ch = input();
- ++column;
- if (ch != '\n') {
- /* that could have been removed by the preprocessor anyway */
- werror (W_STRAY_BACKSLASH, column);
- unput(ch);
- --column;
- }
+ if (ch == '\n')
+ count_char(ch);
+ else
+ {
+ /* that could have been removed by the preprocessor anyway */
+ werror (W_STRAY_BACKSLASH, column);
+ unput(ch);
+ }
}
. { count(); }
%%
return 0;
}
-static void count(void)
+static void count_char(int ch)
{
- int i;
- for (i = 0; yytext[i] != '\0'; i++)
+ switch (ch)
{
- if (yytext[i] == '\n')
- {
- column = 0;
- ++lineno;
- }
- else
- if (yytext[i] == '\t')
- column += 8 - (column % 8);
- else
- column++;
+ case '\n':
+ column = 0;
+ ++lineno;
+ break;
+
+ case '\t':
+ column += 8 - (column % 8);
+ break;
+
+ default:
+ ++column;
+ break;
}
- /* ECHO; */
+}
+
+static void count(void)
+{
+ const char *p;
+
+ for (p = yytext; *p; ++p)
+ count_char(*p);
}
static int check_type(void)
for (; ; )
{
ch = input();
- ++column;
+ count_char(ch);
if (ch == EOF)
break;
{
case '\\':
/* if it is a \ then escape char's are allowed */
- if ((ch = input()) == '\n')
+ ch = input();
+ count_char(ch);
+ if (ch == '\n')
{
/* \<newline> is a continuator */
- ++lineno;
- column = 0;
}
else
{
if (ch == EOF)
goto out;
- ++column;
buf[0] = '\\';
buf[1] = ch;
dbuf_append(&dbuf, buf, 2); /* get the escape char, no further check */
/* if new line we have a new line break, which is illegal */
werror(W_NEWLINE_IN_STRING);
dbuf_append_char(&dbuf, '\n');
- ++lineno;
- column = 0;
break;
case '"':
dbuf_append_char(&dbuf, '"'); /* Pass end of this string or substring to evaluator */
while ((ch = input()) && (isspace(ch) || ch == '\\' || ch == '#'))
{
- ++column;
+ count_char(ch);
switch (ch)
{
case '\\':
if ((ch = input()) != '\n')
{
- ++column;
werror(W_STRAY_BACKSLASH, column);
if (ch != EOF)
- {
- unput(ch);
- --column;
- }
+ unput(ch);
+ else
+ count_char(ch);
}
else
- {
- ++lineno;
- column = 0;
- }
+ count_char(ch);
break;
case '\n':
- ++lineno;
- column = 0;
+ count_char(ch);
break;
case '#':
dbuf_append_char(&linebuf, (char)ch);
if (ch == '\n')
- {
- ++lineno;
- column = 0;
- }
+ count_char(ch);
line = dbuf_c_str(&linebuf);
if (ch != '"')
{
unput(ch);
- --column;
goto out;
}
+ count_char(ch);
break;
default: