static int lFloatConst(int ch, int len, yystypepp * yylvalpp)
{
int alreadyComplained = 0;
assert((ch == '.') || (ch == 'e') || (ch == 'E'));
if (ch == '.') {
do {
APPEND_CHAR_S(ch, yylvalpp->symbol_name, len, MAX_SYMBOL_NAME_LEN);
ch = cpp->currentInput->getch(cpp->currentInput, yylvalpp);
} while (ch >= '0' && ch <= '9');
}
// Exponent:
if (ch == 'e' || ch == 'E') {
APPEND_CHAR_S(ch, yylvalpp->symbol_name, len, MAX_SYMBOL_NAME_LEN);
ch = cpp->currentInput->getch(cpp->currentInput, yylvalpp);
if (ch == '+') {
APPEND_CHAR_S(ch, yylvalpp->symbol_name, len, MAX_SYMBOL_NAME_LEN);
ch = cpp->currentInput->getch(cpp->currentInput, yylvalpp);
} else if (ch == '-') {
APPEND_CHAR_S(ch, yylvalpp->symbol_name, len, MAX_SYMBOL_NAME_LEN);
ch = cpp->currentInput->getch(cpp->currentInput, yylvalpp);
}
if (ch >= '0' && ch <= '9') {
while (ch >= '0' && ch <= '9') {
APPEND_CHAR_S(ch, yylvalpp->symbol_name, len, MAX_SYMBOL_NAME_LEN);
ch = cpp->currentInput->getch(cpp->currentInput, yylvalpp);
}
} else {
CPPErrorToInfoLog("EXPONENT INVALID");
}
}
cpp->currentInput->ungetch(cpp->currentInput, ch, yylvalpp);
assert(len <= MAX_SYMBOL_NAME_LEN);
yylvalpp->symbol_name[len] = '\0';
yylvalpp->sc_fval = (float) atof_dot(yylvalpp->symbol_name);
if (isinff(yylvalpp->sc_fval)) {
CPPErrorToInfoLog("FLOAT CONSTANT OVERFLOW");
}
return CPP_FLOATCONSTANT;
} // lFloatConst
int ReadToken(TokenStream *pTok, yystypepp * yylvalpp)
{
char symbol_name[MAX_SYMBOL_NAME_LEN + 1];
char string_val[MAX_STRING_LEN + 1];
int ltoken, len;
char ch;
ltoken = lReadByte(pTok);
if (ltoken >= 0) {
if (ltoken > 127)
ltoken += 128;
switch (ltoken) {
case CPP_IDENTIFIER:
case CPP_TYPEIDENTIFIER:
len = 0;
ch = lReadByte(pTok);
while ((ch >= 'a' && ch <= 'z') ||
(ch >= 'A' && ch <= 'Z') ||
(ch >= '0' && ch <= '9') ||
ch == '_')
{
if (len < MAX_SYMBOL_NAME_LEN) {
symbol_name[len++] = ch;
ch = lReadByte(pTok);
}
}
symbol_name[len] = '\0';
assert(ch == '\0');
yylvalpp->sc_ident = LookUpAddString(atable, symbol_name);
return CPP_IDENTIFIER;
break;
case CPP_STRCONSTANT:
len = 0;
while ((ch = lReadByte(pTok)) != 0)
if (len < MAX_STRING_LEN)
string_val[len++] = ch;
string_val[len] = '\0';
yylvalpp->sc_ident = LookUpAddString(atable, string_val);
break;
case CPP_FLOATCONSTANT:
len = 0;
ch = lReadByte(pTok);
while ((ch >= '0' && ch <= '9')||(ch=='e'||ch=='E'||ch=='.')||(ch=='+'||ch=='-'))
{
if (len < MAX_SYMBOL_NAME_LEN) {
symbol_name[len++] = ch;
ch = lReadByte(pTok);
}
}
symbol_name[len] = '\0';
assert(ch == '\0');
strcpy(yylvalpp->symbol_name,symbol_name);
yylvalpp->sc_fval=(float)atof_dot(yylvalpp->symbol_name);
break;
case CPP_INTCONSTANT:
len = 0;
ch = lReadByte(pTok);
while ((ch >= '0' && ch <= '9'))
{
if (len < MAX_SYMBOL_NAME_LEN) {
symbol_name[len++] = ch;
ch = lReadByte(pTok);
}
}
symbol_name[len] = '\0';
assert(ch == '\0');
strcpy(yylvalpp->symbol_name,symbol_name);
yylvalpp->sc_int=atoi(yylvalpp->symbol_name);
break;
case '(':
yylvalpp->sc_int = lReadByte(pTok);
break;
}
return ltoken;
}
return EOF_SY;
} // ReadToken
int ReadToken(TokenStream *pTok, yystypepp * yylvalpp)
{
char symbol_name[MAX_SYMBOL_NAME_LEN + 1];
char string_val[MAX_STRING_LEN + 1];
int ltoken, len;
char ch;
int base, accum;
char ch_val;
ltoken = lReadByte(pTok);
if (ltoken >= 0) {
if (ltoken > 127)
ltoken += 128;
switch (ltoken) {
case CPP_IDENTIFIER:
case CPP_TYPEIDENTIFIER:
len = 0;
ch = lReadByte(pTok);
while ((ch >= 'a' && ch <= 'z') ||
(ch >= 'A' && ch <= 'Z') ||
(ch >= '0' && ch <= '9') ||
ch == '_')
{
if (len < MAX_SYMBOL_NAME_LEN) {
symbol_name[len++] = ch;
ch = lReadByte(pTok);
}
}
symbol_name[len] = '\0';
assert(ch == '\0');
yylvalpp->sc_ident = LookUpAddString(atable, symbol_name);
return CPP_IDENTIFIER;
break;
case CPP_STRCONSTANT:
len = 0;
while ((ch = lReadByte(pTok)) != 0)
if (len < MAX_STRING_LEN)
string_val[len++] = ch;
string_val[len] = '\0';
yylvalpp->sc_ident = LookUpAddString(atable, string_val);
break;
case CPP_FLOATCONSTANT:
len = 0;
ch = lReadByte(pTok);
while ((ch >= '0' && ch <= '9')||(ch=='e'||ch=='E'||ch=='.')||(ch=='+'||ch=='-'))
{
if (len < MAX_SYMBOL_NAME_LEN) {
symbol_name[len++] = ch;
ch = lReadByte(pTok);
}
}
symbol_name[len] = '\0';
assert(ch == '\0');
strcpy(yylvalpp->symbol_name,symbol_name);
yylvalpp->sc_fval=(float)atof_dot(yylvalpp->symbol_name);
break;
case CPP_INTCONSTANT:
len = 0;
accum = 0;
ch = lReadByte(pTok);
if (ch == '0') {
symbol_name[len++] = ch;
ch = lReadByte(pTok);
if (ch == 'x' || ch == 'X') {
symbol_name[len++] = ch;
base = 16;
ch = lReadByte(pTok);
} else {
base = 8;
}
} else {
base = 10;
}
while (len < MAX_SYMBOL_NAME_LEN)
{
ch_val = -1;
if (isdigit(ch))
ch_val = ch - '0';
else if (isxdigit(ch))
ch_val = tolower(ch) - 'a' + 10;
if (ch_val < 0 || ch_val >= base)
break;
symbol_name[len++] = ch;
accum = accum * base + ch_val;
ch = lReadByte(pTok);
}
symbol_name[len] = '\0';
assert(ch == '\0');
strcpy(yylvalpp->symbol_name, symbol_name);
yylvalpp->sc_int = accum;
break;
case '(':
yylvalpp->sc_int = lReadByte(pTok);
break;
}
return ltoken;
}
return EOF_SY;
} // ReadToken
