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/* -*- c-basic-offset: 4; indent-tabs-mode: nil -*- */
#include <string>
#include <typeinfo>
#include <sstream>
#include <iostream>
#include <map>
#include <set>
#include <stdlib.h>
#include "base/StringUtil.h"
#include "base/FileParser.h"
using namespace std;
template<typename argType>
class commandArg
{
public:
commandArg() {}
commandArg(string name, string descrip) {
mName = name;
mDesc = descrip;
mHasDefault = false;
mHasValue = false;
}
commandArg(string name,string descrip,argType T) {
mName = name;
mDesc = descrip;
mValue = T;
mHasDefault = true;
mHasValue = true;
}
void SetValue(argType &T) { mValue = T; mHasValue=true; }
void SetDefault(argType &T) { mValue = T; mHasDefault = true; }
void SetDescription(string d) { mDesc = d; }
bool HasDefault() { return mHasDefault; }
bool HasValue() { return mHasValue; }
argType GetValue() { return mValue; }
string GetName() const { return mName; }
string GetDescription() { return mDesc; }
friend bool operator< (const commandArg<argType> &lhs,
const commandArg<argType> &rhs)
{
if ( lhs.GetName() < rhs.GetName() )
return true;
return false;
}
string GetType()
{
string type = typeid(*this).name();
if ( type.find("Ib") != string::npos )
return "bool";
else if ( type.find("Ii") != string::npos )
return "int";
else if ( type.find("Id") != string::npos )
return "double";
else if ( type.find("ISs") != string::npos )
return "string";
else if (type.find("IlE") != string::npos )
return "long";
else {
std::cerr << "*** unknown type for [" << type << "]" << endl;
return "unknown type";
}
}
private:
string mName, mDesc;
argType mValue;
bool mHasDefault, mHasValue;
};
class commandLineParser
{
public:
commandLineParser(int argc, char** argv, const string & description = "") {
mArgc = argc;
mArgv = argv;
mDesc = description;
mNumDefaults = 0;
mNumArgs = 0;
}
void SetDescription(const string & s) {
mDesc = s;
}
private:
int mArgc;
char** mArgv;
stringstream mHelp;
string mDesc;
int mNumDefaults,mNumArgs;
multimap<string,string> mNameVal;
set<string> mArgNames, mCArgNames;
public:
template<typename T>
void registerArg(commandArg<T> &arg)
{
if ( mHelp.str().empty() )
mHelp << "\n";
mHelp << string(arg.GetName()
+ "<"
+ arg.GetType()
+ "> : "
+ arg.GetDescription() );
if ( arg.HasDefault() )
{
mHelp << " (def=";
ostringstream o;
o << arg.GetValue() ;
mHelp << o.str() << ")";
++mNumDefaults;
}
mHelp << "\n" << ends;
mArgNames.insert(arg.GetName());
++mNumArgs;
}
template<typename T>
void registerCompoundArg(commandArg<T> &arg)
{
if ( mHelp.str().empty() )
mHelp << "\n";
mHelp << string(arg.GetName()
+ "<"
+ arg.GetType()
+ "> : "
+ arg.GetDescription() );
if ( arg.HasDefault() )
{
mHelp << " (def=";
ostringstream o;
o << arg.GetValue() ;
mHelp << o.str() << ")";
++mNumDefaults;
}
mHelp << "\n" << ends;
mCArgNames.insert(arg.GetName());
++mNumArgs;
}
bool parse()
{
if ( mArgc == 1 && mNumArgs != mNumDefaults)
{
showHelp();
exit(-1);
}
if ( requestHelp() )
{
showHelp();
exit(-1);
}
if ( mArgNames.empty() )
{
showHelp();
exit(-1);
}
int i(1);
while ( i<mArgc )
{
// for ( int i=1; i<mArgc; ++i )
// {
string n(mArgv[i]);//, v(mArgv[i+1]);
string v("");
if ( i<mArgc-1)
v=string(mArgv[i+1]);
bool is_compound(false);
set<string>::iterator sIter = mArgNames.find(n);
if ( sIter == mArgNames.end() )
{
sIter = mCArgNames.find(n);
if (sIter==mCArgNames.end())
{
if (n == "-print-command-line") {
cout << "----------------------- Welcome to Trinity -------------------------------" << endl;
cout << "This module was invoked via:" << endl;
for (int k=0; k<mArgc; k++) {
cout << mArgv[k] << " ";
}
cout << endl;
cout << "----------------------- Welcome to Trinity -------------------------------" << endl << endl;
if ( mArgc == 2 ) {
showHelp();
exit(-1);
}
i++;
continue;
} else {
cout << "\nInvalid command-line arg: " << n << endl;
showHelp();
exit(-1);
}
}
else
{
is_compound=true;
}
}
string targ("-");
StringParser sp; sp.SetLine(v);
int num_v=sp.GetItemCount();
if (!is_compound)
{
bool is_float(false);
if (num_v>1) is_float = sp.IsFloat(1);
if (ContainsAt(n,targ,0) && is_float)
{
mNameVal.insert(make_pair(n,v));
i+=2;
}
else if ( ContainsAt(n,targ,0) && !ContainsAt(v,targ,0) )
{
mNameVal.insert(make_pair(n,v));
i+=2;
}
else if ( ContainsAt(n,targ,0) && ContainsAt(v,targ,0) )
{
v="";
mNameVal.insert(make_pair(n,v));
i+=1;
}
else
{
i+=1;
}
}
else
{
for (int k=0; k<num_v; ++k)
mNameVal.insert(make_pair(n,sp.AsString(k)));
i+=2;
}
}
return true;
}
template<typename T>
string GetStringValueFor(commandArg<T> &keyArg)
{
string key(keyArg.GetName());
map<string,string>::iterator mIter = mNameVal.find(key);
if ( mIter == mNameVal.end() )
{
ostringstream o;
o << keyArg.GetValue();
if ( keyArg.GetType() == "string" )
{
if ( !keyArg.HasDefault() )
{
cout << "need to specify " << key << endl;
exit(-1);
}
return (o.str());
}
return (string(""));
}
return (mIter->second);
}
template<typename T>
vector<string> GetCompoundStringValuesFor(commandArg<T> &keyArg)
{
vector<string> dummy;
string key(keyArg.GetName());
pair<multimap<string,string>::iterator,multimap<string,string>::iterator> mIter = mNameVal.equal_range(key);
if ( mIter.first == mIter.second)
{
ostringstream o;
o << keyArg.GetValue();
if ( keyArg.GetType() == "string" )
{
if ( !keyArg.HasDefault() )
{
cout << "need to specify " << key << endl;
exit(-1);
}
dummy.push_back(o.str());
return (dummy);
}
return (dummy);
}
for (; mIter.first != mIter.second; ++mIter.first)
dummy.push_back(mIter.first->second);
return dummy;
}
double GetDoubleValueFor(commandArg<double> &keyArg)
{
string key(keyArg.GetName());
string val = GetStringValueFor(keyArg);
if ( val.empty() )
{
if (!keyArg.HasDefault() )
{
cout << "need to specify " << key << endl;
exit(-1);
}
else
return ( keyArg.GetValue() );
}
else
{
// if ( !val.IsDouble() )
// {
// cout << "invalid: " << key <<" "<< val << endl;
// exit(-1);
// }
// else
return (atof(val.c_str()));
}
}
int GetIntValueFor(commandArg<int> &keyArg)
{
string key(keyArg.GetName());
string val = GetStringValueFor(keyArg);
if ( val.empty() )
{
if (!keyArg.HasDefault() )
{
cout << "need to specify " << key << endl;
exit(-1);
}
else
return ( keyArg.GetValue() );
}
else
{
// if ( !val.IsInt() )
// {
// cout << "invalid: " << key <<" "<< val << endl;
// exit(-1);
// }
// else
return (atoi(val.c_str()));
}
}
int GetLongValueFor(commandArg<long> &keyArg)
{
string key(keyArg.GetName());
string val = GetStringValueFor(keyArg);
if ( val.empty() )
{
if (!keyArg.HasDefault() )
{
cout << "need to specify " << key << endl;
exit(-1);
}
else
return ( keyArg.GetValue() );
}
else
{
// if ( !val.IsInt() )
// {
// cout << "invalid: " << key <<" "<< val << endl;
// exit(-1);
// }
// else
return (atol(val.c_str()));
}
}
bool GetBoolValueFor(commandArg<bool> &keyArg)
{
string key(keyArg.GetName());
map<string,string>::iterator mIter = mNameVal.find(key);
if ( mIter == mNameVal.end() )
{
if ( keyArg.HasDefault() )
{
return keyArg.GetValue();
}
else
{
cout << "need to specify " << key << endl;
exit(-1);
}
}
else
return true;
}
bool requestHelp()
{
for ( int i=1; i<mArgc; ++i )
{
string this_arg(mArgv[i]);
if ( this_arg == "-h" )
return true;
}
return false;
}
void showHelp()
{
cout << endl << mArgv[0] << ": ";
if (mDesc != "")
cout << mDesc << endl << endl;
else
cout << "a module in the code base 'Trinity'." << endl << endl;
cout << "\nAvailable arguments:" << endl;
cout << mHelp.str() << endl;
}
};
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