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Perl Language Reference Manual
by Larry Wall and others
Paperback (6"x9"), 724 pages
ISBN 9781906966027
RRP £29.95 ($39.95)

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17.5 Specifying Values

The values are specified on the following format line in the same order as the picture fields. The expressions providing the values must be separated by commas. They are all evaluated in a list context before the line is processed, so a single list expression could produce multiple list elements. The expressions may be spread out to more than one line if enclosed in braces. If so, the opening brace must be the first token on the first line. If an expression evaluates to a number with a decimal part, and if the corresponding picture specifies that the decimal part should appear in the output (that is, any picture except multiple "#" characters without an embedded "."), the character used for the decimal point is always determined by the current LC_NUMERIC locale. This means that, if, for example, the run-time environment happens to specify a German locale, "," will be used instead of the default ".". See "Perl locale handling (internationalization and localization)" (perllocale) in the Perl Unicode and Locales Manual and 17.12 for more information.

ISBN 9781906966027Perl Language Reference ManualSee the print edition