--- parser3/src/include/pa_table.h 2002/08/01 11:41:16 1.46 +++ parser3/src/include/pa_table.h 2003/03/26 18:52:49 1.48.2.11.2.6 @@ -1,17 +1,16 @@ /** @file Parser: table class decl. - Copyright (c) 2001, 2002 ArtLebedev Group (http://www.artlebedev.com) + 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: 2002/08/01 11:41:16 $"; +static const char* IDENT_TABLE_H="$Date: 2003/03/26 18:52:49 $"; #include "pa_types.h" -#include "pa_array.h" #include "pa_hash.h" #include "pa_string.h" @@ -29,41 +28,34 @@ static const char* IDENT_TABLE_H="$Date: 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, - const Array *acolumns, - int initial_rows=CR_INITIAL_ROWS_DEFAULT); - Table(const Table& source); - Table(Pool& apool, const Table& source, int offset=0); - - /// where this table came from, may be NULL - const String *origin_string() { return forigin_string; } + Table( + columns_type acolumns, + int initial_rows=3); + Table(const Table& src, int offset=0, int limit=0); /// gets column names - const Array *columns() { return fcolumns; } - - /// assignes column names - void set_columns(const Array *acolumns) { fcolumns=acolumns; } + columns_type columns() { return fcolumns; } /// moves @a current pointer void set_current(int acurrent) { fcurrent=acurrent; } /// @return current pointer - int current() { return fcurrent; } + 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; } @@ -71,29 +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 - const 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