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Updated simplecpp

This commit is contained in:
Daniel Marjamäki 2017-05-18 21:40:47 +02:00
parent 469390504b
commit 711e6f704a
1 changed files with 20 additions and 4 deletions
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24
externals/simplecpp/simplecpp.cpp vendored
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@ -43,6 +43,10 @@
#define SIMPLECPP_WINDOWS
#endif
static bool isHex(const std::string &s) {
return s.size()>2 && (s.compare(0,2,"0x")==0 || s.compare(0,2,"0X")==0);
}
namespace {
const simplecpp::TokenString DEFINE("define");
const simplecpp::TokenString UNDEF("undef");
@ -73,7 +77,7 @@ namespace {
long long stringToLL(const std::string &s)
{
long long ret;
const bool hex = (s.length()>2 && s.compare(0, 2, "0x") == 0);
const bool hex = isHex(s);
std::istringstream istr(hex ? s.substr(2) : s);
if (hex)
istr >> std::hex;
@ -84,7 +88,7 @@ namespace {
unsigned long long stringToULL(const std::string &s)
{
unsigned long long ret;
const bool hex = (s.length()>2 && s.compare(0, 2, "0x") == 0);
const bool hex = isHex(s);
std::istringstream istr(hex ? s.substr(2) : s);
if (hex)
istr >> std::hex;
@ -585,15 +589,27 @@ void simplecpp::TokenList::constFold()
}
}
static bool isFloatSuffix(const simplecpp::Token *tok) {
if (!tok || tok->str.size() > 2)
return false;
std::string s = tok->str;
std::transform(s.begin(), s.end(), s.begin(), static_cast<int (*)(int)>(std::tolower));
return s == "lf" || s == "f";
}
void simplecpp::TokenList::combineOperators()
{
for (Token *tok = front(); tok; tok = tok->next) {
if (tok->op == '.') {
if (tok->previous && tok->previous->op == '.')
continue;
if (tok->next && tok->next->op == '.')
continue;
// float literals..
if (tok->previous && tok->previous->number) {
tok->setstr(tok->previous->str + '.');
deleteToken(tok->previous);
if (tok->next && tok->next->startsWithOneOf("Ee")) {
if (isFloatSuffix(tok->next) || (tok->next && tok->next->startsWithOneOf("Ee"))) {
tok->setstr(tok->str + tok->next->str);
deleteToken(tok->next);
}
@ -605,7 +621,7 @@ void simplecpp::TokenList::combineOperators()
}
// match: [0-9.]+E [+-] [0-9]+
const char lastChar = tok->str[tok->str.size() - 1];
if (tok->number && (lastChar == 'E' || lastChar == 'e') && tok->next && tok->next->isOneOf("+-") && tok->next->next && tok->next->next->number) {
if (tok->number && !isHex(tok->str) && (lastChar == 'E' || lastChar == 'e') && tok->next && tok->next->isOneOf("+-") && tok->next->next && tok->next->next->number) {
tok->setstr(tok->str + tok->next->op + tok->next->next->str);
deleteToken(tok->next);
deleteToken(tok->next);