Use .Aq instead of \*[Lt]...\*[Gt]; sort SEE ALSO; add some more commas;
new sentence, new line; fix some mdoc nits.
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@ -1,4 +1,4 @@
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.\" $NetBSD: printf.1,v 1.18 2003/04/28 09:26:34 augustss Exp $
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.\" $NetBSD: printf.1,v 1.19 2003/04/28 09:38:19 wiz Exp $
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.\"
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.\" Copyright (c) 1989, 1990, 1993
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.\" The Regents of the University of California. All rights reserved.
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@ -65,7 +65,7 @@ after the first are treated as strings if the corresponding format is
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either
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.Cm b ,
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.Cm B ,
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.Cm c
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.Cm c ,
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or
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.Cm s ;
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otherwise it is evaluated as a C constant, with the following extensions:
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@ -89,25 +89,45 @@ Character escape sequences are in backslash notation as defined in
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The characters and their meanings are as follows:
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.Bl -tag -width Ds -offset indent
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.It Cm \ee
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Write an \*[Lt]escape\*[Gt] character.
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Write an
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.Aq escape
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character.
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.It Cm \ea
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Write a \*[Lt]bell\*[Gt] character.
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Write a
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.Aq bell
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character.
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.It Cm \eb
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Write a \*[Lt]backspace\*[Gt] character.
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Write a
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.Aq backspace
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character.
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.It Cm \ef
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Write a \*[Lt]form-feed\*[Gt] character.
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Write a
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.Aq form-feed
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character.
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.It Cm \en
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Write a \*[Lt]new-line\*[Gt] character.
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Write a
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.Aq new-line
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character.
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.It Cm \er
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Write a \*[Lt]carriage return\*[Gt] character.
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Write a
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.Aq carriage return
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character.
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.It Cm \et
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Write a \*[Lt]tab\*[Gt] character.
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Write a
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.Aq tab
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character.
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.It Cm \ev
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Write a \*[Lt]vertical tab\*[Gt] character.
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Write a
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.Aq vertical tab
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character.
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.It Cm \e\'
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Write a \*[Lt]single quote\*[Gt] character.
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Write a
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.Aq single quote
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character.
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.It Cm \e"
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Write a \*[Lt]double quote\*[Gt] character.
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Write a
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.Aq double quote
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character.
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.It Cm \e\e
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Write a backslash character.
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.It Cm \e Ns Ar num
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@ -123,15 +143,17 @@ value is the 1\- or 2\-digit hexadecimal number
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.El
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.Pp
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Each format specification is introduced by the percent character
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(``%'').
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.Pq Dq \&% .
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The remainder of the format specification includes,
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in the following order:
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.Bl -tag -width Ds
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.It "Zero or more of the following flags:"
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.It Zero or more of the following flags :
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.Bl -tag -width Ds
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.It Cm #
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A `#' character
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specifying that the value should be printed in an ``alternative form''.
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A
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.Sq #
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character specifying that the value should be printed in an
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.Dq alternative form .
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For
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.Cm b ,
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.Cm c ,
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@ -151,9 +173,9 @@ format, a non-zero result has the string
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.Pq Li 0X
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prepended to it.
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For
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.Cm e ,
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.Cm e ,
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.Cm E ,
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.Cm f ,
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.Cm f ,
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.Cm g ,
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and
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.Cm G
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@ -171,22 +193,32 @@ would otherwise be.
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.\" .Cm B
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.\" format, backslash-escape sequences are expanded first;
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.It Cm \&\-
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A minus sign `\-' which specifies
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A minus sign
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.Sq \-
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which specifies
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.Em left adjustment
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of the output in the indicated field;
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.It Cm \&+
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A `+' character specifying that there should always be
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A
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.Sq \&+
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character specifying that there should always be
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a sign placed before the number when using signed formats.
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.It Sq \&\ \&
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A space specifying that a blank should be left before a positive number
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for a signed format.
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A `+' overrides a space if both are used;
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A
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.Sq \&+
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overrides a space if both are used;
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.It Cm \&0
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A zero `0' character indicating that zero-padding should be used
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rather than blank-padding.
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A `\-' overrides a `0' if both are used;
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A
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.Sq \-
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overrides a
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.Sq \&0
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if both are used;
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.El
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.It "Field Width:"
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.It Field Width :
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An optional digit string specifying a
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.Em field width ;
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if the output string has fewer characters than the field width it will
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@ -195,7 +227,7 @@ has been given) to make up the field width (note that a leading zero
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is a flag, but an embedded zero is part of a field width);
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.It Precision :
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An optional period,
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.Sq Cm \&.\& ,
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.Sq Cm \&. ,
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followed by an optional digit string giving a
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.Em precision
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which specifies the number of digits to appear after the decimal point,
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@ -206,9 +238,9 @@ and
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formats, or the maximum number of characters to be printed
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from a string
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.Sm off
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.Pf ( Cm b No ,
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.Pf ( Cm b ,
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.Sm on
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.Cm B
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.Cm B ,
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and
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.Cm s
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formats); if the digit string is missing, the precision is treated
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@ -255,7 +287,9 @@ where there
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is one digit before the decimal point and the number after is equal to
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the precision specification for the argument; when the precision is
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missing, 6 digits are produced.
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An upper-case E is used for an `E' format.
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An upper-case E is used for an
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.Sq E
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format.
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.It Cm gG
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The
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.Ar argument
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@ -285,16 +319,16 @@ value is the 1\-, 2\-, or 3\-digit
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octal number
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.Ar num .
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.It Cm \e^ Ns Ar c
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Write the control character
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Write the control character
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.Ar c .
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Generates characters `\e000' through `\e037`, and `\e177' (from `\e^?').
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.It Cm \eM\- Ns Ar c
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Write the character
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Write the character
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.Ar c
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with the 8th bit set.
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Generates characters `\e241' through `\e376`.
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.It Cm \eM^ Ns Ar c
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Write the control character
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Write the control character
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.Ar c
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with the 8th bit set.
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Generates characters `\e000' through `\e037`, and `\e177' (from `\eM^?').
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@ -334,8 +368,8 @@ exits 0 on success, 1 on failure.
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.Sh SEE ALSO
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.Xr echo 1 ,
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.Xr printf 3 ,
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.Xr printf 9 ,
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.Xr vis 3
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.Xr vis 3 ,
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.Xr printf 9
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.Sh STANDARDS
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The
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.Nm
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@ -354,5 +388,6 @@ to floating-point and
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then back again, floating-point precision may be lost.
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.Pp
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Hexadecimal character constants are restricted to, and should be specified
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as, two character constants. This is contrary to the ISO C standard but
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as, two character constants.
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This is contrary to the ISO C standard but
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does guarantee detection of the end of the constant.
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