--- parser3/src/include/pa_table.h 2001/05/08 08:14:53 1.32 +++ parser3/src/include/pa_table.h 2003/03/26 18:52:49 1.48.2.11.2.6 @@ -1,18 +1,16 @@ /** @file Parser: table class decl. - Copyright (c) 2001 ArtLebedev Group (http://www.artlebedev.com) - - Author: Alexander Petrosyan (http://design.ru/paf) - - $Id: pa_table.h,v 1.32 2001/05/08 08:14:53 paf Exp $ + Copyright (c) 2001-2003 ArtLebedev Group (http://www.artlebedev.com) + Author: Alexandr Petrosian (http://paf.design.ru) */ #ifndef PA_TABLE_H #define PA_TABLE_H +static const char* IDENT_TABLE_H="$Date: 2003/03/26 18:52:49 $"; + #include "pa_types.h" -#include "pa_array.h" #include "pa_hash.h" #include "pa_string.h" @@ -30,36 +28,34 @@ 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: + typedef ArrayString* columns_type; - Table(Pool& apool, - const String *aorigin, - Array *acolumns, - int initial_rows=CR_INITIAL_ROWS_DEFAULT); + Table( + columns_type acolumns, + int initial_rows=3); + Table(const Table& src, int offset=0, int limit=0); - /// where this table came from, may be NULL - const String *origin_string() { return forigin_string; } - - /// column names - const Array *columns() { return fcolumns; } + /// gets column names + columns_type columns() { return fcolumns; } /// moves @a current pointer void set_current(int acurrent) { fcurrent=acurrent; } /// @return current pointer - int current() { return fcurrent; } - void shift(int offset); + int current() const { return fcurrent; } + void offset(bool absolute, int offset); /** @return column index from @a column_name. '<0' if no such column - if no such colum conditionally 'bark' + if no such - 'bark' */ int column_name2index(const String& column, bool bark) const; /// @return item from @a column - const String *item(int column) const; + const String* item(size_t column); /// @return item from @a column. '0' if no such column - const String *item(const String& column) const { + const String* item(const String& column) { int index=column_name2index(column, false); return index>=0?item(index):0; } @@ -67,29 +63,25 @@ public: /// saves to text file void save(bool nameless_save, const String& file_spec); - bool locate(int column, const String& value); + bool locate(size_t 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(static_cast(get(index))); - } - private: - // where this table came from, may be NULL - const String *forigin_string; - - // column name->number lookup table - Hash name2number; - // current row - int fcurrent; + size_t fcurrent; // columns - Array *fcolumns; + columns_type fcolumns; + + // column names are already referenced in fcolumns, no need to doublecheck references here + // column name->number lookup table + typedef Hash name2number_hash_class; + name2number_hash_class* name2number; + + // we own columns? - bool valid(int index) const { return index>=0 && index=0 && index