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(Fformat): Doc fix.

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Chong Yidong 2008-02-26 16:34:36 +00:00
parent 6667db4e21
commit 6329325d6b
1 changed files with 30 additions and 5 deletions
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35
src/editfns.c
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@ -3383,7 +3383,10 @@ DEFUN ("format", Fformat, Sformat, 1, MANY, 0,
doc: /* Format a string out of a format-string and arguments.
The first argument is a format control string.
The other arguments are substituted into it to make the result, a string.
It may contain %-sequences meaning to substitute the next argument.
The format control string may contain %-sequences meaning to substitute
the next available argument:
%s means print a string argument. Actually, prints any object, with `princ'.
%d means print as number in decimal (%o octal, %x hex).
%X is like %x, but uses upper case.
@ -3393,12 +3396,34 @@ It may contain %-sequences meaning to substitute the next argument.
or decimal-point notation, whichever uses fewer characters.
%c means print a number as a single character.
%S means print any object as an s-expression (using `prin1').
The argument used for %d, %o, %x, %e, %f, %g or %c must be a number.
The argument used for %d, %o, %x, %e, %f, %g or %c must be a number.
Use %% to put a single % into the output.
The basic structure of a %-sequence is
% <flags> <width> <precision> character
where flags is [-+ #0]+, width is [0-9]+, and precision is .[0-9]+
A %-sequence may contain optional flag, width, and precision
specifiers, as follows:
%<flags><width><precision>character
where flags is [+ #-0]+, width is [0-9]+, and precision is .[0-9]+
The + flag character inserts a + before any positive number, while a
space inserts a space before any positive number; these flags only
affect %d, %e, %f, and %g sequences, and the + flag takes precedence.
The # flag means to use an alternate display form for %o, %x, %X, %e,
%f, and %g sequences. The - and 0 flags affect the width specifier,
as described below.
The width specifier supplies a lower limit for the length of the
printed representation. The padding, if any, normally goes on the
left, but it goes on the right if the - flag is present. The padding
character is normally a space, but it is 0 if the 0 flag is present.
The - flag takes precedence over the 0 flag.
For %e, %f, and %g sequences, the number after the "." in the
precision specifier says how many decimal places to show; if zero, the
decimal point itself is omitted. For %s and %S, the precision
specifier truncates the string to the given width.
usage: (format STRING &rest OBJECTS) */)
(nargs, args)