GNC-FQ-HELPER(1)					User Contributed Perl Documentation					  GNC-FQ-HELPER(1)

NAME

       gnc-fq-helper  -  allows gnucash to communicate with Finance::Quote
			 over pipes from guile. The requests and responses
			 are scheme forms.

SYNOPSIS

       gnc-fq-helper

DESCRIPTION

       Input: (on standard input - one entry per line and one line per entry, and double quotes must only be delimiters, not string content --
       remember, we don't have a real scheme parser on the perl side :>).

       (<method-name> symbol symbol symbol ...)

       where <method-name> indicates the desired Finance::Quote method.  The currently recognized subset is yahoo, yahoo_europe, fidelity_direct,
       troweprice_direct, vanguard, asx, tiaacref, and currency.

       For currency quotes, the symbols alternate between the 'from' and 'to' currencies.

       For example:

       (yahoo "IBM" "LNUX") (fidelity_direct "FBIOX" "FSELX") (currency "USD" "AUD")

       Output (on standard output, one output form per input line):

       Schemified version of gnc-fq's output, basically an alist of alists, as in the example below.  Right now, only the fields that this script
       knows about (and knows how to convert to scheme) are returned, so the conversion function will have to be updated whenever Finance::Quote
       changes.  Currently you'll get symbol, gnc:time-no-zone, and currency, and either last, nav, or price.  Fields with gnc: prefixes are
       non-Finance::Quote fields.  gnc:time-no-zone is returned as a string of the form "YYYY-MM-DD HH:MM:SS", basically the unmolested (and
       underspecified) output of the quote source.  It's up to you to know what it's proper timezone really is.  i.e. if you know the time was in
       America/Chicago, you'll need to convert it to that.

       For example:

	$ echo '(yahoo "CSCO" "JDSU" "^IXIC")' | ./gnc-fq-helper
       (("CSCO" (symbol . "CSCO")
		(gnc:time-no-zone . "2001-03-13 19:27:00")
		(last . 20.375)
		(currency . "USD"))
	("JDSU" (symbol . "JDSU")
		(gnc:time-no-zone . "2001-03-13 19:27:00")
		(last . 23.5625)
		(currency . "USD"))
       ("^IXIC" (symbol . ^IXIC)
		(gnc:time-no-zone . 2002-12-04 17:16:00)
		(last . 1430.35)
		(currency . failed-conversion)))

       On error, the overall result may be #f, or on individual errors, the list sub-item for a given symbol may be #f, like this:

	$ echo '(yahoo "CSCO" "JDSU")' | ./gnc-fq-helper
       (#f
	("JDSU" (symbol . "JDSU")
		(gnc:time-no-zone . "2001-03-13 19:27:00")
		(last . 23.5625)
		(currency . "USD")))

       further, errors may be stored with each quote as indicated in Finance::Quote, and whenever the conversion to scheme data fails, the field
       will have the value 'failed-conversion, and accordingly this symbol will never be a legitimate conversion.

       Exit status

       0 - success non-zero - failure

perl v5.14.2							    2013-01-03							  GNC-FQ-HELPER(1)