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Diff for /parser3/src/include/pa_table.h between versions 1.19 and 1.33

version 1.19, 2001/03/24 19:12:18 version 1.33, 2001/05/17 10:22:24
Line 11 Line 11
 #ifndef PA_TABLE_H  #ifndef PA_TABLE_H
 #define PA_TABLE_H  #define PA_TABLE_H
   
   #include "pa_config_includes.h"
 #include "pa_types.h"  #include "pa_types.h"
 #include "pa_array.h"  #include "pa_array.h"
 #include "pa_hash.h"  #include "pa_hash.h"
 #include "pa_string.h"  #include "pa_string.h"
 #include "pa_request.h"  
   
 /**   /** 
         VTable backend.          VTable backend.
Line 27 Line 27
   
         uses String for column names and data items          uses String for column names and data items
   
         hence most of tables are "named", no need to uptimize nameless onces          hence most of tables are "named", no need to uptimize nameless onces.
           rows and strings stored are read-only. once stored they can be removed,
           but not altered. that's handy for quick copying & co. see table:join
 */  */
 class Table : public Array {  class Table : public Array {
 public:  public:
   
         Table(Pool& apool,          Table(Pool& apool,
                 const String& asource,                  const String *aorigin,
                 Array *acolumns,                  Array *acolumns,
                 int initial_rows=CR_INITIAL_ROWS_DEFAULT);                  int initial_rows=CR_INITIAL_ROWS_DEFAULT);
   
         /// the string source of table's data          /// where this table came from, may be NULL
         //const String& source() { return fsource; }          const String *origin_string() { return forigin_string; }
   
         /// column names          /// column names
         const Array *columns() { return fcolumns; }          const Array *columns() { return fcolumns; }
Line 46  public: Line 48  public:
         /// moves @a current pointer          /// moves @a current pointer
         void set_current(int acurrent) { fcurrent=acurrent; }          void set_current(int acurrent) { fcurrent=acurrent; }
         /// @return current pointer          /// @return current pointer
         int get_current() { return fcurrent; }          int current() { return fcurrent; }
           void shift(int offset);
   
         /// @return item from @a column_name          /** @return column index from @a column_name. '<0' if no such column
         const String *item(const String& column_name);                  if no such colum conditionally 'bark'
           */
           int column_name2index(const String& column, bool bark) const;
   
           /// @return item from @a column
           const String *item(int column) const;
   
           /// @return item from @a column. '0' if no such column
           const String *item(const String& column) const {
                   int index=column_name2index(column, false);
                   return index>=0?item(index):0;
           }
   
 private:          /// saves to text file
           void save(bool nameless_save, const String& file_spec);
   
           bool locate(int column, const String& value);
           bool locate(const String& column, const String& value);
   
           const Array& at(int index) const {
                   // force @c const result
                   return *const_cast<const Array *>(static_cast<Array *>(get(index)));
           }
   
         // the base origin of table's data  private:
         const String& fsource;          
           // where this table came from, may be NULL
           const String *forigin_string;
   
         // column name->number lookup table          // column name->number lookup table
         Hash name2number;          Hash name2number;
Line 65  private: Line 90  private:
         // columns          // columns
         Array *fcolumns;          Array *fcolumns;
   
         bool valid(int index) { return index>=0 && index<size();        }          bool valid(int index) const { return index>=0 && index<size(); }
   
         const Array& at(int index);  
   
         const String *item(int column_index) {  
                 return valid(fcurrent)?at(fcurrent).get_string(column_index):0;  
         }  
 };  };
   
 #endif  #endif
Removed from v.1.19  
changed lines
  Added in v.1.33

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