2024-06-01 15:57:23 -05:00

246 lines
5.2 KiB
C++

#ifndef __CSVFILE_H__
#define __CSVFILE_H__
#include <string>
#include <vector>
#include <map>
////////////////////////////////////////////////////////////////////////////////
/// \class cCsvAlias
///
///
/// <pre>
/// int a = row.AsInt(0);
/// int b = row.AsInt(1);
/// </pre>
///
///
/// <pre>
/// int a = row.AsInt(0);
/// int c = row.AsInt(1);
/// </pre>
///
////////////////////////////////////////////////////////////////////////////////
class cCsvAlias
{
private:
typedef std::map<std::string, size_t> NAME2INDEX_MAP;
typedef std::map<size_t, std::string> INDEX2NAME_MAP;
NAME2INDEX_MAP m_Name2Index;
INDEX2NAME_MAP m_Index2Name;
public:
cCsvAlias() {}
virtual ~cCsvAlias() {}
public:
void AddAlias(const char* name, size_t index);
void Destroy();
const char* operator [] (size_t index) const;
size_t operator [] (const char* name) const;
private:
cCsvAlias(const cCsvAlias&) {}
const cCsvAlias& operator = (const cCsvAlias&) { return *this; }
};
////////////////////////////////////////////////////////////////////////////////
/// \class cCsvRow
///
///
/// <pre>
/// ---------------------+----------------------------------------------------
/// ItemPrice | ItemPrice
/// Item,Price | "Item,Price"
/// Item"Price | "Item""Price"
/// "ItemPrice" | """ItemPrice"""
/// "Item,Price" | """Item,Price"""
/// Item",Price | "Item"",Price"
/// </pre>
///
///
/// \sa cCsvFile
////////////////////////////////////////////////////////////////////////////////
class cCsvRow : public std::vector<std::string>
{
public:
cCsvRow() {}
~cCsvRow() {}
public:
int AsInt(size_t index) const { return atoi(at(index).c_str()); }
double AsDouble(size_t index) const { return atof(at(index).c_str()); }
const char* AsString(size_t index) const { return at(index).c_str(); }
int AsInt(const char* name, const cCsvAlias& alias) const {
return atoi( at(alias[name]).c_str() );
}
double AsDouble(const char* name, const cCsvAlias& alias) const {
return atof( at(alias[name]).c_str() );
}
const char* AsString(const char* name, const cCsvAlias& alias) const {
return at(alias[name]).c_str();
}
private:
cCsvRow(const cCsvRow&) {}
const cCsvRow& operator = (const cCsvRow&) { return *this; }
};
////////////////////////////////////////////////////////////////////////////////
/// \class cCsvFile
///
/// <b>sample</b>
/// <pre>
/// cCsvFile file;
///
/// cCsvRow row1, row2, row3;
/// row1.push_back("ItemPrice");
/// row1.push_back("Item,Price");
/// row1.push_back("Item\"Price");
///
/// row2.reserve(3);
/// row2[0] = "\"ItemPrice\"";
/// row2[1] = "\"Item,Price\"";
/// row2[2] = "Item\",Price\"";
///
/// row3 = "\"ItemPrice\"\"Item,Price\"Item\",Price\"";
///
/// file.add(row1);
/// file.add(row2);
/// file.add(row3);
/// file.save("test.csv", false);
/// </pre>
///
////////////////////////////////////////////////////////////////////////////////
class cCsvFile
{
private:
typedef std::vector<cCsvRow*> ROWS;
ROWS m_Rows;
public:
cCsvFile() {}
virtual ~cCsvFile() { Destroy(); }
public:
bool Load(const char* fileName, const char seperator=',', const char quote='"');
bool Save(const char* fileName, bool append=false, char seperator=',', char quote='"') const;
void Destroy();
cCsvRow* operator [] (size_t index);
const cCsvRow* operator [] (size_t index) const;
size_t GetRowCount() const { return m_Rows.size(); }
private:
cCsvFile(const cCsvFile&) {}
const cCsvFile& operator = (const cCsvFile&) { return *this; }
};
////////////////////////////////////////////////////////////////////////////////
/// \class cCsvTable
///
///
/// <b>sample</b>
/// <pre>
/// cCsvTable table;
///
/// table.alias(0, "ItemClass");
/// table.alias(1, "ItemType");
///
/// if (table.load("test.csv"))
/// {
/// while (table.next())
/// {
/// std::string item_class = table.AsString("ItemClass");
/// int item_type = table.AsInt("ItemType");
/// }
/// }
/// </pre>
////////////////////////////////////////////////////////////////////////////////
class cCsvTable
{
public :
cCsvFile m_File;
std::string m_fileName;
private:
cCsvAlias m_Alias;
int m_CurRow;
public:
cCsvTable();
virtual ~cCsvTable();
public:
bool Load(const char* fileName, const char seperator=',', const char quote='"');
void AddAlias(const char* name, size_t index) { m_Alias.AddAlias(name, index); }
bool Next();
size_t ColCount() const;
int AsInt(size_t index) const;
double AsDouble(size_t index) const;
const char* AsStringByIndex(size_t index) const;
int AsInt(const char* name) const { return AsInt(m_Alias[name]); }
double AsDouble(const char* name) const { return AsDouble(m_Alias[name]); }
const char* AsString(const char* name) const { return AsStringByIndex(m_Alias[name]); }
void Destroy();
private:
const cCsvRow* const CurRow() const;
cCsvTable(const cCsvTable&) {}
const cCsvTable& operator = (const cCsvTable&) { return *this; }
};
#endif //__CSVFILE_H__
//martysama0134's 2e58d0b8baeb072acdf3afc4a5d1999f