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/doc/efuns/sprintf
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printf, sprintf - formatted output conversion
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void printf( string format, ... );
string sprintf( string format, ... );
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An implementation of (s)printf() for LPC, with quite a few
extensions Implemented by Lynscar (Sean A Reith).
This version supports the following as modifiers:
" " pad positive integers with a space.
"+" pad positive integers with a plus sign.
"-" left adjusted within field size.
NB: std (s)printf() defaults to right justification,
which is unnatural in the context of a mainly string
based language but has been retained for
"compatability".
"|" centered within field size.
"=" column mode if strings are greater than field size.
This is only meaningful with strings, all other
types ignore this. Columns are auto-magically word
wrapped.
"#" table mode, print a list of '\n' separated 'words'
in a table within the field size. only meaningful
with strings.
n specifies the field size, a '*' specifies to use the
corresponding arg as the field size. If n is
prepended with a zero, then is padded zeros, else it
is padded with spaces (or specified pad string).
"."n precision of n, simple strings truncate after this
(if precision is greater than field size, then field
size = precision), tables use precision to specify
the number of columns (if precision not specified
then tables calculate a best fit), all other types
ignore this.
":"n n specifies the fs _and_ the precision, if n is
prepended by a zero then it is padded with zeros
instead of spaces.
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"@" the argument is an array. the corresponding
format_info (minus the "@") is applyed to each
element of the array.
"'X'" The char(s) between the single-quotes are used to
pad to field size (defaults to space) (if both a
zero (in front of field size) and a pad string are
specified, the one specified second overrules).
NOTE: to include "'" in the pad string, you must
use "\'" (as the backslash has to be escaped past
the interpreter), similarly, to include "
The following are the possible type specifiers.
% in which case no arguments are interpreted, and a
"%" is inserted, and all modifiers are ignored.
O the argument is an LPC datatype.
s the argument is a string.
d, i the integer arg is printed in decimal.
c the integer arg is to be printed as a character.
o the integer arg is printed in octal.
x the integer arg is printed in hex.
X the integer arg is printed in hex (with A-F in
capitals).
f floating point number
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sprintf() returns the formatted string.
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Sean A. Reith (Lynscar)
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sscanf(3)
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