nicht angemeldet
Hi Alex,
P.S.: Vielleicht kann ja jemand mal auflösen was die Zeile macht, oder mir einen Link zu einer ausführlicheren Beschreibung von "sprintf" posten, als es die Doku von Perl hergibt.
habe nachfolgendes in "Programming Perl" von Larry Wall gefunden. Vielleicht hilft es Dir.
Ich habe erst vor kurzem mit Perl angefangen, so daß ich noch nicht bis zu sprintf "vorgedrungen" ;-) bin.
3.2.156 sprintf
sprintf FORMAT, LIST
This function returns a string formatted by the usual printf conventions. The FORMAT string contains text with embedded field specifiers into which the elements of LIST are substituted, one per field. Field specifiers are roughly of the form:
%m.nx
where the m and n are optional sizes whose interpretation depends on the type of field, and x is one of:
Code Meaning
c Character
d Decimal integer
e Exponential format floating-point number
f Fixed point format floating-point number
g Compact format floating-point number
ld Long decimal integer
lo Long octal integer
lu Long unsigned decimal integer
lx Long hexadecimal integer
o Octal integer
s String
u Unsigned decimal integer
x Hexadecimal integer
X Hexadecimal integer with upper-case letters
The various combinations are fully documented in the manpage for printf(3), but we'll mention that m is typically the minimum length of the field (negative for left justified), and n is precision for exponential formats and the maximum length for other formats. Padding is typically done with spaces for strings and zeroes for numbers. The * character as a length specifier is not supported. But, you can easily get around this by including the length expression directly into FORMAT, as in:
$width = 20; $value = sin 1.0;
foreach $precision (0..($width-2)) {
$output_arr[$precision] = sprintf "%${width}.${precision}f", $value;
}
Also, vielleicht hilft es etwas.
Schönes Wochenende
Timoty