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https://github.com/c64scene-ar/llvm-6502.git
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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
parent
d23a35bc2b
commit
9b14eb5a78
@ -510,9 +510,39 @@ void alias::printOptionInfo(unsigned GlobalWidth) const {
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// Parser Implementation code...
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//
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// basic_parser implementation
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//
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// Return the width of the option tag for printing...
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unsigned basic_parser_impl::getOptionWidth(const Option &O) const {
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unsigned Len = std::strlen(O.ArgStr);
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if (const char *ValName = getValueName())
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Len += std::strlen(getValueStr(O, ValName))+3;
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return Len + 6;
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}
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// printOptionInfo - Print out information about this option. The
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// to-be-maintained width is specified.
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//
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void basic_parser_impl::printOptionInfo(const Option &O,
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unsigned GlobalWidth) const {
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cerr << " -" << O.ArgStr;
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if (const char *ValName = getValueName())
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cerr << "=<" << getValueStr(O, ValName) << ">";
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cerr << string(GlobalWidth-getOptionWidth(O), ' ') << " - "
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<< O.HelpStr << "\n";
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}
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// parser<bool> implementation
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//
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bool parser<bool>::parseImpl(Option &O, const string &Arg, bool &Value) {
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bool parser<bool>::parse(Option &O, const char *ArgName,
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const string &Arg, bool &Value) {
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if (Arg == "" || Arg == "true" || Arg == "TRUE" || Arg == "True" ||
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Arg == "1") {
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Value = true;
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@ -525,25 +555,10 @@ bool parser<bool>::parseImpl(Option &O, const string &Arg, bool &Value) {
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return false;
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}
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// Return the width of the option tag for printing...
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unsigned parser<bool>::getOptionWidth(const Option &O) const {
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return std::strlen(O.ArgStr)+6;
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}
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// printOptionInfo - Print out information about this option. The
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// to-be-maintained width is specified.
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//
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void parser<bool>::printOptionInfo(const Option &O, unsigned GlobalWidth) const{
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unsigned L = std::strlen(O.ArgStr);
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cerr << " -" << O.ArgStr << string(GlobalWidth-L-6, ' ') << " - "
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<< O.HelpStr << "\n";
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}
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// parser<int> implementation
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//
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bool parser<int>::parseImpl(Option &O, const string &Arg, int &Value) {
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bool parser<int>::parse(Option &O, const char *ArgName,
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const string &Arg, int &Value) {
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const char *ArgStart = Arg.c_str();
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char *End;
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Value = (int)strtol(ArgStart, &End, 0);
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@ -552,24 +567,9 @@ bool parser<int>::parseImpl(Option &O, const string &Arg, int &Value) {
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return false;
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}
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// Return the width of the option tag for printing...
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unsigned parser<int>::getOptionWidth(const Option &O) const {
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return std::strlen(O.ArgStr)+std::strlen(getValueStr(O, "int"))+9;
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}
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// printOptionInfo - Print out information about this option. The
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// to-be-maintained width is specified.
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// parser<double>/parser<float> implementation
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//
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void parser<int>::printOptionInfo(const Option &O, unsigned GlobalWidth) const{
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cerr << " -" << O.ArgStr << "=<" << getValueStr(O, "int") << ">"
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<< string(GlobalWidth-getOptionWidth(O), ' ') << " - "
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<< O.HelpStr << "\n";
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}
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// parser<double> implementation
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//
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bool parser<double>::parseImpl(Option &O, const string &Arg, double &Value) {
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static bool parseDouble(Option &O, const string &Arg, double &Value) {
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const char *ArgStart = Arg.c_str();
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char *End;
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Value = strtod(ArgStart, &End);
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@ -578,39 +578,21 @@ bool parser<double>::parseImpl(Option &O, const string &Arg, double &Value) {
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return false;
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}
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// Return the width of the option tag for printing...
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unsigned parser<double>::getOptionWidth(const Option &O) const {
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return std::strlen(O.ArgStr)+std::strlen(getValueStr(O, "number"))+9;
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bool parser<double>::parse(Option &O, const char *AN,
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const std::string &Arg, double &Val) {
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return parseDouble(O, Arg, Val);
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}
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// printOptionInfo - Print out information about this option. The
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// to-be-maintained width is specified.
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//
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void parser<double>::printOptionInfo(const Option &O,
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unsigned GlobalWidth) const{
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cerr << " -" << O.ArgStr << "=<" << getValueStr(O, "number") << ">"
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<< string(GlobalWidth-getOptionWidth(O), ' ')
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<< " - " << O.HelpStr << "\n";
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bool parser<float>::parse(Option &O, const char *AN,
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const std::string &Arg, float &Val) {
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double dVal;
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if (parseDouble(O, Arg, dVal))
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return true;
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Val = (float)dVal;
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return false;
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}
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// parser<string> implementation
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//
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// Return the width of the option tag for printing...
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unsigned parser<string>::getOptionWidth(const Option &O) const {
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return std::strlen(O.ArgStr)+std::strlen(getValueStr(O, "string"))+9;
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}
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// printOptionInfo - Print out information about this option. The
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// to-be-maintained width is specified.
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//
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void parser<string>::printOptionInfo(const Option &O,
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unsigned GlobalWidth) const{
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cerr << " -" << O.ArgStr << " <" << getValueStr(O, "string") << ">"
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<< string(GlobalWidth-getOptionWidth(O), ' ')
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<< " - " << O.HelpStr << "\n";
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}
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// generic_parser_base implementation
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//
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@ -729,18 +711,8 @@ public:
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if (!PosOpts.empty() && PosOpts[0]->getNumOccurancesFlag() == ConsumeAfter)
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CAOpt = PosOpts[0];
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for (unsigned i = CAOpt != 0, e = PosOpts.size(); i != e; ++i) {
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for (unsigned i = CAOpt != 0, e = PosOpts.size(); i != e; ++i)
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cerr << " " << PosOpts[i]->HelpStr;
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switch (PosOpts[i]->getNumOccurancesFlag()) {
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case Optional: cerr << "?"; break;
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case ZeroOrMore: cerr << "*"; break;
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case Required: break;
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case OneOrMore: cerr << "+"; break;
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case ConsumeAfter:
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default:
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assert(0 && "Unknown NumOccurances Flag Value!");
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}
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}
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// Print the consume after option info if it exists...
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if (CAOpt) cerr << " " << CAOpt->HelpStr;
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@ -771,10 +743,10 @@ HelpPrinter HiddenPrinter(true);
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cl::opt<HelpPrinter, true, parser<bool> >
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HOp("help", cl::desc("display available options (--help-hidden for more)"),
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cl::location(NormalPrinter));
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cl::location(NormalPrinter), cl::ValueDisallowed);
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cl::opt<HelpPrinter, true, parser<bool> >
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HHOp("help-hidden", cl::desc("display all available options"),
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cl::location(HiddenPrinter), cl::Hidden);
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cl::location(HiddenPrinter), cl::Hidden, cl::ValueDisallowed);
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} // End anonymous namespace
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@ -510,9 +510,39 @@ void alias::printOptionInfo(unsigned GlobalWidth) const {
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// Parser Implementation code...
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//
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// basic_parser implementation
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//
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// Return the width of the option tag for printing...
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unsigned basic_parser_impl::getOptionWidth(const Option &O) const {
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unsigned Len = std::strlen(O.ArgStr);
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if (const char *ValName = getValueName())
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Len += std::strlen(getValueStr(O, ValName))+3;
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return Len + 6;
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}
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// printOptionInfo - Print out information about this option. The
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// to-be-maintained width is specified.
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//
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void basic_parser_impl::printOptionInfo(const Option &O,
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unsigned GlobalWidth) const {
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cerr << " -" << O.ArgStr;
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if (const char *ValName = getValueName())
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cerr << "=<" << getValueStr(O, ValName) << ">";
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cerr << string(GlobalWidth-getOptionWidth(O), ' ') << " - "
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<< O.HelpStr << "\n";
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}
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// parser<bool> implementation
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//
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bool parser<bool>::parseImpl(Option &O, const string &Arg, bool &Value) {
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bool parser<bool>::parse(Option &O, const char *ArgName,
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const string &Arg, bool &Value) {
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if (Arg == "" || Arg == "true" || Arg == "TRUE" || Arg == "True" ||
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Arg == "1") {
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Value = true;
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@ -525,25 +555,10 @@ bool parser<bool>::parseImpl(Option &O, const string &Arg, bool &Value) {
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return false;
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}
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// Return the width of the option tag for printing...
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unsigned parser<bool>::getOptionWidth(const Option &O) const {
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return std::strlen(O.ArgStr)+6;
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}
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// printOptionInfo - Print out information about this option. The
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// to-be-maintained width is specified.
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//
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void parser<bool>::printOptionInfo(const Option &O, unsigned GlobalWidth) const{
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unsigned L = std::strlen(O.ArgStr);
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cerr << " -" << O.ArgStr << string(GlobalWidth-L-6, ' ') << " - "
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<< O.HelpStr << "\n";
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}
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// parser<int> implementation
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//
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bool parser<int>::parseImpl(Option &O, const string &Arg, int &Value) {
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bool parser<int>::parse(Option &O, const char *ArgName,
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const string &Arg, int &Value) {
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const char *ArgStart = Arg.c_str();
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char *End;
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Value = (int)strtol(ArgStart, &End, 0);
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@ -552,24 +567,9 @@ bool parser<int>::parseImpl(Option &O, const string &Arg, int &Value) {
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return false;
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}
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// Return the width of the option tag for printing...
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unsigned parser<int>::getOptionWidth(const Option &O) const {
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return std::strlen(O.ArgStr)+std::strlen(getValueStr(O, "int"))+9;
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}
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// printOptionInfo - Print out information about this option. The
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// to-be-maintained width is specified.
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// parser<double>/parser<float> implementation
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//
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void parser<int>::printOptionInfo(const Option &O, unsigned GlobalWidth) const{
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cerr << " -" << O.ArgStr << "=<" << getValueStr(O, "int") << ">"
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<< string(GlobalWidth-getOptionWidth(O), ' ') << " - "
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<< O.HelpStr << "\n";
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}
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// parser<double> implementation
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//
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bool parser<double>::parseImpl(Option &O, const string &Arg, double &Value) {
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static bool parseDouble(Option &O, const string &Arg, double &Value) {
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const char *ArgStart = Arg.c_str();
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char *End;
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Value = strtod(ArgStart, &End);
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@ -578,39 +578,21 @@ bool parser<double>::parseImpl(Option &O, const string &Arg, double &Value) {
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return false;
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}
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// Return the width of the option tag for printing...
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unsigned parser<double>::getOptionWidth(const Option &O) const {
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return std::strlen(O.ArgStr)+std::strlen(getValueStr(O, "number"))+9;
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bool parser<double>::parse(Option &O, const char *AN,
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const std::string &Arg, double &Val) {
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return parseDouble(O, Arg, Val);
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}
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// printOptionInfo - Print out information about this option. The
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// to-be-maintained width is specified.
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//
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void parser<double>::printOptionInfo(const Option &O,
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unsigned GlobalWidth) const{
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cerr << " -" << O.ArgStr << "=<" << getValueStr(O, "number") << ">"
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<< string(GlobalWidth-getOptionWidth(O), ' ')
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<< " - " << O.HelpStr << "\n";
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bool parser<float>::parse(Option &O, const char *AN,
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const std::string &Arg, float &Val) {
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double dVal;
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if (parseDouble(O, Arg, dVal))
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return true;
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Val = (float)dVal;
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return false;
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}
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// parser<string> implementation
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//
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// Return the width of the option tag for printing...
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unsigned parser<string>::getOptionWidth(const Option &O) const {
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return std::strlen(O.ArgStr)+std::strlen(getValueStr(O, "string"))+9;
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}
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// printOptionInfo - Print out information about this option. The
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// to-be-maintained width is specified.
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//
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void parser<string>::printOptionInfo(const Option &O,
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unsigned GlobalWidth) const{
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cerr << " -" << O.ArgStr << " <" << getValueStr(O, "string") << ">"
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<< string(GlobalWidth-getOptionWidth(O), ' ')
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<< " - " << O.HelpStr << "\n";
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}
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// generic_parser_base implementation
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//
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@ -729,18 +711,8 @@ public:
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if (!PosOpts.empty() && PosOpts[0]->getNumOccurancesFlag() == ConsumeAfter)
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CAOpt = PosOpts[0];
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for (unsigned i = CAOpt != 0, e = PosOpts.size(); i != e; ++i) {
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for (unsigned i = CAOpt != 0, e = PosOpts.size(); i != e; ++i)
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cerr << " " << PosOpts[i]->HelpStr;
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switch (PosOpts[i]->getNumOccurancesFlag()) {
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case Optional: cerr << "?"; break;
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case ZeroOrMore: cerr << "*"; break;
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case Required: break;
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case OneOrMore: cerr << "+"; break;
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case ConsumeAfter:
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default:
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assert(0 && "Unknown NumOccurances Flag Value!");
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}
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}
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// Print the consume after option info if it exists...
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if (CAOpt) cerr << " " << CAOpt->HelpStr;
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@ -771,10 +743,10 @@ HelpPrinter HiddenPrinter(true);
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cl::opt<HelpPrinter, true, parser<bool> >
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HOp("help", cl::desc("display available options (--help-hidden for more)"),
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cl::location(NormalPrinter));
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cl::location(NormalPrinter), cl::ValueDisallowed);
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cl::opt<HelpPrinter, true, parser<bool> >
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HHOp("help-hidden", cl::desc("display all available options"),
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cl::location(HiddenPrinter), cl::Hidden);
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cl::location(HiddenPrinter), cl::Hidden, cl::ValueDisallowed);
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} // End anonymous namespace
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