wb-option.h

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// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
// Copyright 2014-2015 Tsinghua University
// Author: wb.th08@gmail.com (Bin Wang), ozj@tsinghua.edu.cn (Zhijian Ou) 
//
// All h, cpp, cc, and script files (e.g. bat, sh, pl, py) should include the above 
// license declaration. Different coding language may use different comment styles.

#pragma once
#include "wb-log.h"
#include "wb-vector.h"
#include "wb-win.h"

namespace wb
{
    typedef enum {
        wbOPT_TRUE,         
        wbOPT_FALSE,            
        wbOPT_INT,          
        wbOPT_STRING,           
        wbOPT_FLOAT         
    } ValueType;

    typedef struct {
        ValueType type;         
        const char* pLabel;     
        void* pAddress;         
        const char* pDocMsg;    
    } Opt_Struct;


    class Option
    {
    public:
        Array<Opt_Struct> m_opts; 
        string m_strOtherHelp; 
        bool m_bOutputValues; 
        bool m_bMustCommand; 

        Array<char*> m_allocedBufs; 
    public:
        Option();
        /* If the option type is string, then 'strdup' is used to create a new string.
           As a result, in destructor, we should 'free' these string.
        */
        ~Option();
        void Add(ValueType t, const char* pLabel, void *pAddress, const char* pDocMsg = NULL);
        void PrintUsage();
        void Print(ValueType type, void* pAddress);
        void PrintValue();
        void Parse(const char *plabel, const char *pvalue);

        int Parse(int argc, char **argv);


        int Parse(const char *optfile);
    };
}