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00030 #ifndef EXPANDLIB_CMD_BPAD_H_INCLUDED
00031 #define EXPANDLIB_CMD_BPAD_H_INCLUDED
00032
00033 #include <boost/lexical_cast.hpp>
00034
00035 #include "expandlib-cmd.h"
00036
00037 namespace expander {
00038
00040
00044 template<
00045
00046 class StringType = ::std::string
00047 >
00048 class expcmd_bpad : public expandcmd<StringType> {
00049 protected:
00050 public:
00052
00055 expcmd_bpad(expandable<StringType> * const eobj) : expandcmd<StringType>(eobj, _T("bpad")) {};
00056
00057 virtual void operator()(StringType &dest, const FParamVectorType ¶ms, const FVarMapType &vars, ExpandResultsType &results) const
00058 {
00059 if ( params.size() == 3 && params[2].size() >= 1 ) {
00060 const StringType::size_type s=dest.size();
00061 expobj->expand(dest, params[0], vars, results);
00062
00063 try {
00064 const StringType::size_type num=boost::lexical_cast<StringType::size_type>(params[1]);
00065
00066 if ( dest.size()-s < num ) {
00067 const StringType::value_type padchar=params[2][0];
00068 dest.append(num-(dest.size()-s), padchar);
00069 }
00070 } catch(boost::bad_lexical_cast) {
00071 throw expand_error(_T("expcmd_bpad"),_T("Illegal size"),params[1].c_str());
00072 }
00073 } else {
00074 throw expand_error(_T("expcmd_bpad"),_T("Parameter error"));
00075 }
00076 }
00077 };
00078
00079 }
00080
00081 #endif //EXPANDLIB_CMD_BPAD_H_INCLUDED