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mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2025-03-19 04:31:17 +00:00

Simplify writing custom parsers.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3256 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2002-08-07 18:36:37 +00:00
parent d23a35bc2b
commit 9b14eb5a78
2 changed files with 96 additions and 152 deletions
lib/Support
support/lib/Support

@ -510,9 +510,39 @@ void alias::printOptionInfo(unsigned GlobalWidth) const {
// Parser Implementation code...
//
// basic_parser implementation
//
// Return the width of the option tag for printing...
unsigned basic_parser_impl::getOptionWidth(const Option &O) const {
unsigned Len = std::strlen(O.ArgStr);
if (const char *ValName = getValueName())
Len += std::strlen(getValueStr(O, ValName))+3;
return Len + 6;
}
// printOptionInfo - Print out information about this option. The
// to-be-maintained width is specified.
//
void basic_parser_impl::printOptionInfo(const Option &O,
unsigned GlobalWidth) const {
cerr << " -" << O.ArgStr;
if (const char *ValName = getValueName())
cerr << "=<" << getValueStr(O, ValName) << ">";
cerr << string(GlobalWidth-getOptionWidth(O), ' ') << " - "
<< O.HelpStr << "\n";
}
// parser<bool> implementation
//
bool parser<bool>::parseImpl(Option &O, const string &Arg, bool &Value) {
bool parser<bool>::parse(Option &O, const char *ArgName,
const string &Arg, bool &Value) {
if (Arg == "" || Arg == "true" || Arg == "TRUE" || Arg == "True" ||
Arg == "1") {
Value = true;
@ -525,25 +555,10 @@ bool parser<bool>::parseImpl(Option &O, const string &Arg, bool &Value) {
return false;
}
// Return the width of the option tag for printing...
unsigned parser<bool>::getOptionWidth(const Option &O) const {
return std::strlen(O.ArgStr)+6;
}
// printOptionInfo - Print out information about this option. The
// to-be-maintained width is specified.
//
void parser<bool>::printOptionInfo(const Option &O, unsigned GlobalWidth) const{
unsigned L = std::strlen(O.ArgStr);
cerr << " -" << O.ArgStr << string(GlobalWidth-L-6, ' ') << " - "
<< O.HelpStr << "\n";
}
// parser<int> implementation
//
bool parser<int>::parseImpl(Option &O, const string &Arg, int &Value) {
bool parser<int>::parse(Option &O, const char *ArgName,
const string &Arg, int &Value) {
const char *ArgStart = Arg.c_str();
char *End;
Value = (int)strtol(ArgStart, &End, 0);
@ -552,24 +567,9 @@ bool parser<int>::parseImpl(Option &O, const string &Arg, int &Value) {
return false;
}
// Return the width of the option tag for printing...
unsigned parser<int>::getOptionWidth(const Option &O) const {
return std::strlen(O.ArgStr)+std::strlen(getValueStr(O, "int"))+9;
}
// printOptionInfo - Print out information about this option. The
// to-be-maintained width is specified.
// parser<double>/parser<float> implementation
//
void parser<int>::printOptionInfo(const Option &O, unsigned GlobalWidth) const{
cerr << " -" << O.ArgStr << "=<" << getValueStr(O, "int") << ">"
<< string(GlobalWidth-getOptionWidth(O), ' ') << " - "
<< O.HelpStr << "\n";
}
// parser<double> implementation
//
bool parser<double>::parseImpl(Option &O, const string &Arg, double &Value) {
static bool parseDouble(Option &O, const string &Arg, double &Value) {
const char *ArgStart = Arg.c_str();
char *End;
Value = strtod(ArgStart, &End);
@ -578,39 +578,21 @@ bool parser<double>::parseImpl(Option &O, const string &Arg, double &Value) {
return false;
}
// Return the width of the option tag for printing...
unsigned parser<double>::getOptionWidth(const Option &O) const {
return std::strlen(O.ArgStr)+std::strlen(getValueStr(O, "number"))+9;
bool parser<double>::parse(Option &O, const char *AN,
const std::string &Arg, double &Val) {
return parseDouble(O, Arg, Val);
}
// printOptionInfo - Print out information about this option. The
// to-be-maintained width is specified.
//
void parser<double>::printOptionInfo(const Option &O,
unsigned GlobalWidth) const{
cerr << " -" << O.ArgStr << "=<" << getValueStr(O, "number") << ">"
<< string(GlobalWidth-getOptionWidth(O), ' ')
<< " - " << O.HelpStr << "\n";
bool parser<float>::parse(Option &O, const char *AN,
const std::string &Arg, float &Val) {
double dVal;
if (parseDouble(O, Arg, dVal))
return true;
Val = (float)dVal;
return false;
}
// parser<string> implementation
//
// Return the width of the option tag for printing...
unsigned parser<string>::getOptionWidth(const Option &O) const {
return std::strlen(O.ArgStr)+std::strlen(getValueStr(O, "string"))+9;
}
// printOptionInfo - Print out information about this option. The
// to-be-maintained width is specified.
//
void parser<string>::printOptionInfo(const Option &O,
unsigned GlobalWidth) const{
cerr << " -" << O.ArgStr << " <" << getValueStr(O, "string") << ">"
<< string(GlobalWidth-getOptionWidth(O), ' ')
<< " - " << O.HelpStr << "\n";
}
// generic_parser_base implementation
//
@ -729,18 +711,8 @@ public:
if (!PosOpts.empty() && PosOpts[0]->getNumOccurancesFlag() == ConsumeAfter)
CAOpt = PosOpts[0];
for (unsigned i = CAOpt != 0, e = PosOpts.size(); i != e; ++i) {
for (unsigned i = CAOpt != 0, e = PosOpts.size(); i != e; ++i)
cerr << " " << PosOpts[i]->HelpStr;
switch (PosOpts[i]->getNumOccurancesFlag()) {
case Optional: cerr << "?"; break;
case ZeroOrMore: cerr << "*"; break;
case Required: break;
case OneOrMore: cerr << "+"; break;
case ConsumeAfter:
default:
assert(0 && "Unknown NumOccurances Flag Value!");
}
}
// Print the consume after option info if it exists...
if (CAOpt) cerr << " " << CAOpt->HelpStr;
@ -771,10 +743,10 @@ HelpPrinter HiddenPrinter(true);
cl::opt<HelpPrinter, true, parser<bool> >
HOp("help", cl::desc("display available options (--help-hidden for more)"),
cl::location(NormalPrinter));
cl::location(NormalPrinter), cl::ValueDisallowed);
cl::opt<HelpPrinter, true, parser<bool> >
HHOp("help-hidden", cl::desc("display all available options"),
cl::location(HiddenPrinter), cl::Hidden);
cl::location(HiddenPrinter), cl::Hidden, cl::ValueDisallowed);
} // End anonymous namespace

@ -510,9 +510,39 @@ void alias::printOptionInfo(unsigned GlobalWidth) const {
// Parser Implementation code...
//
// basic_parser implementation
//
// Return the width of the option tag for printing...
unsigned basic_parser_impl::getOptionWidth(const Option &O) const {
unsigned Len = std::strlen(O.ArgStr);
if (const char *ValName = getValueName())
Len += std::strlen(getValueStr(O, ValName))+3;
return Len + 6;
}
// printOptionInfo - Print out information about this option. The
// to-be-maintained width is specified.
//
void basic_parser_impl::printOptionInfo(const Option &O,
unsigned GlobalWidth) const {
cerr << " -" << O.ArgStr;
if (const char *ValName = getValueName())
cerr << "=<" << getValueStr(O, ValName) << ">";
cerr << string(GlobalWidth-getOptionWidth(O), ' ') << " - "
<< O.HelpStr << "\n";
}
// parser<bool> implementation
//
bool parser<bool>::parseImpl(Option &O, const string &Arg, bool &Value) {
bool parser<bool>::parse(Option &O, const char *ArgName,
const string &Arg, bool &Value) {
if (Arg == "" || Arg == "true" || Arg == "TRUE" || Arg == "True" ||
Arg == "1") {
Value = true;
@ -525,25 +555,10 @@ bool parser<bool>::parseImpl(Option &O, const string &Arg, bool &Value) {
return false;
}
// Return the width of the option tag for printing...
unsigned parser<bool>::getOptionWidth(const Option &O) const {
return std::strlen(O.ArgStr)+6;
}
// printOptionInfo - Print out information about this option. The
// to-be-maintained width is specified.
//
void parser<bool>::printOptionInfo(const Option &O, unsigned GlobalWidth) const{
unsigned L = std::strlen(O.ArgStr);
cerr << " -" << O.ArgStr << string(GlobalWidth-L-6, ' ') << " - "
<< O.HelpStr << "\n";
}
// parser<int> implementation
//
bool parser<int>::parseImpl(Option &O, const string &Arg, int &Value) {
bool parser<int>::parse(Option &O, const char *ArgName,
const string &Arg, int &Value) {
const char *ArgStart = Arg.c_str();
char *End;
Value = (int)strtol(ArgStart, &End, 0);
@ -552,24 +567,9 @@ bool parser<int>::parseImpl(Option &O, const string &Arg, int &Value) {
return false;
}
// Return the width of the option tag for printing...
unsigned parser<int>::getOptionWidth(const Option &O) const {
return std::strlen(O.ArgStr)+std::strlen(getValueStr(O, "int"))+9;
}
// printOptionInfo - Print out information about this option. The
// to-be-maintained width is specified.
// parser<double>/parser<float> implementation
//
void parser<int>::printOptionInfo(const Option &O, unsigned GlobalWidth) const{
cerr << " -" << O.ArgStr << "=<" << getValueStr(O, "int") << ">"
<< string(GlobalWidth-getOptionWidth(O), ' ') << " - "
<< O.HelpStr << "\n";
}
// parser<double> implementation
//
bool parser<double>::parseImpl(Option &O, const string &Arg, double &Value) {
static bool parseDouble(Option &O, const string &Arg, double &Value) {
const char *ArgStart = Arg.c_str();
char *End;
Value = strtod(ArgStart, &End);
@ -578,39 +578,21 @@ bool parser<double>::parseImpl(Option &O, const string &Arg, double &Value) {
return false;
}
// Return the width of the option tag for printing...
unsigned parser<double>::getOptionWidth(const Option &O) const {
return std::strlen(O.ArgStr)+std::strlen(getValueStr(O, "number"))+9;
bool parser<double>::parse(Option &O, const char *AN,
const std::string &Arg, double &Val) {
return parseDouble(O, Arg, Val);
}
// printOptionInfo - Print out information about this option. The
// to-be-maintained width is specified.
//
void parser<double>::printOptionInfo(const Option &O,
unsigned GlobalWidth) const{
cerr << " -" << O.ArgStr << "=<" << getValueStr(O, "number") << ">"
<< string(GlobalWidth-getOptionWidth(O), ' ')
<< " - " << O.HelpStr << "\n";
bool parser<float>::parse(Option &O, const char *AN,
const std::string &Arg, float &Val) {
double dVal;
if (parseDouble(O, Arg, dVal))
return true;
Val = (float)dVal;
return false;
}
// parser<string> implementation
//
// Return the width of the option tag for printing...
unsigned parser<string>::getOptionWidth(const Option &O) const {
return std::strlen(O.ArgStr)+std::strlen(getValueStr(O, "string"))+9;
}
// printOptionInfo - Print out information about this option. The
// to-be-maintained width is specified.
//
void parser<string>::printOptionInfo(const Option &O,
unsigned GlobalWidth) const{
cerr << " -" << O.ArgStr << " <" << getValueStr(O, "string") << ">"
<< string(GlobalWidth-getOptionWidth(O), ' ')
<< " - " << O.HelpStr << "\n";
}
// generic_parser_base implementation
//
@ -729,18 +711,8 @@ public:
if (!PosOpts.empty() && PosOpts[0]->getNumOccurancesFlag() == ConsumeAfter)
CAOpt = PosOpts[0];
for (unsigned i = CAOpt != 0, e = PosOpts.size(); i != e; ++i) {
for (unsigned i = CAOpt != 0, e = PosOpts.size(); i != e; ++i)
cerr << " " << PosOpts[i]->HelpStr;
switch (PosOpts[i]->getNumOccurancesFlag()) {
case Optional: cerr << "?"; break;
case ZeroOrMore: cerr << "*"; break;
case Required: break;
case OneOrMore: cerr << "+"; break;
case ConsumeAfter:
default:
assert(0 && "Unknown NumOccurances Flag Value!");
}
}
// Print the consume after option info if it exists...
if (CAOpt) cerr << " " << CAOpt->HelpStr;
@ -771,10 +743,10 @@ HelpPrinter HiddenPrinter(true);
cl::opt<HelpPrinter, true, parser<bool> >
HOp("help", cl::desc("display available options (--help-hidden for more)"),
cl::location(NormalPrinter));
cl::location(NormalPrinter), cl::ValueDisallowed);
cl::opt<HelpPrinter, true, parser<bool> >
HHOp("help-hidden", cl::desc("display all available options"),
cl::location(HiddenPrinter), cl::Hidden);
cl::location(HiddenPrinter), cl::Hidden, cl::ValueDisallowed);
} // End anonymous namespace