App::Chart::Database -- database functions
App::Chart::Database->add_symbol ($symbol)Add $symbol to the database.
If $symbol is already in the database then remove its "historical" marker.
App::Chart::Database->delete_symbol ($symbol,
$notes_too)Delete all data relating to $symbol from the database.
If $notes_too is given and it's true then delete user notes and annotations too.
App::Chart::Database->symbol_exists ($symbol)Return true if $symbol exists in the database.
Return true if $symbol is marked as historical,
meaning it's delisted,
or renamed,
or whatever,
but in any case is no longer actively trading.
App::Chart::Database->symbol_name ($symbol)Return the stock or commodity name for $symbol,
obtained from the database.
App::Chart::Database->symbol_decimals ($symbol)Return the number of decimal places normally shown on prices for $symbol.
For example prices in dollars might have this as 2 to show dollars and cents.
It's possible particular prices in the database or a quote might have more than this many places.
The return is 0 if there's no information on $symbol.
$value = App::Chart::Database->read_extra ($symbol,
$key)App::Chart::Database->write_extra ($symbol,
$key,
$value)Read or write extra data associated with $symbol.
$key is a string describing the data,
$value is a string or undef.
undef means delete the data.
http://user42.tuxfamily.org/chart/index.html
Copyright 2008, 2009, 2010, 2011 Kevin Ryde
Chart is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 3, or (at your option) any later version.
Chart is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License along with Chart; see the file COPYING. Failing that, see http://www.gnu.org/licenses/.
