#   This program is free software: you can redistribute it and/or modify
#   it under the terms of the GNU General Public License as published by
#   the Free Software Foundation, either version 3 of the License, or
#   (at your option) any later version.
#
#   This program is distributed in the hope that it will be useful,
#   but WITHOUT ANY WARRANTY; without even the implied warranty of
#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#   GNU General Public License for more details.
#
#   You should have received a copy of the GNU General Public License
#   along with this program.  If not, see <http://www.gnu.org/licenses/>.
#
LC_ALL=C
LC_NUMERIC=C

unset vv

# this should expand escape sequences in the format string, nothing else
printf -v vv "\tone\n"
printf "%s"  "$vv"

# this should not cut off output after the \c
printf -v vv "one\ctwo\n"
printf "%s"  "$vv"

# and unrecognized backslash escapes should have the backslash preserved
printf -v vv "4\.2\n"
printf "%s"  "$vv"

printf -v vv "no newline " ; printf "%s" "$vv" ; printf -v vv "now newline\n"
printf "%s"  "$vv"

# %% -> %
printf -v vv "%%\n"
printf "%s"  "$vv"

# this was a bug caused by pre-processing the string for backslash escapes
# before doing the `%' format processing -- all versions before bash-2.04
printf -v vv "\045"
printf "%s"  "$vv"
echo
printf -v vv "\045d\n"
printf "%s"  "$vv"

# simple character output
printf -v vv "%c\n" ABCD
printf "%s"  "$vv"

# test simple string output
printf -v vv "%s\n" unquoted
printf "%s"  "$vv"

# test quoted string output
printf -v vv "%s %q\n" unquoted quoted
printf "%s"  "$vv"
printf -v vv "%s%10q\n" unquoted quoted
printf "%s"  "$vv"

printf -v vv "%q\n" 'this&that'
printf "%s"  "$vv"

# altform with %q will force single-quoting
printf -v vv '%#q\n' no-quotes-needed 'quotes;needed'
printf "%s"  "$vv"

# make sure the format string is reused to use up arguments
printf -v vv "%d " 1 2 3 4 5
printf "%s"  "$vv"
echo

# make sure that extra format characters get null arguments
printf -v vv "%s %d %d %d\n" onestring
printf "%s"  "$vv"

printf -v vv "%s %d %u %4.2f\n" onestring
printf "%s"  "$vv"

printf -v vv -- "--%s %s--\n" 4.2 ''
printf "%s"  "$vv"
printf -v vv -- "--%s %s--\n" 4.2
printf "%s"  "$vv"

# test %b escapes

# 8 is a non-octal digit, so the `81' should be output
#printf -v vv -- "--%b--\n" '\n\081'
#printf "%s"  "$vv"

printf -v vv -- "--%b--\n" '\t\0101'
printf "%s"  "$vv"
printf -v vv -- "--%b--\n" '\t\101'
printf "%s"  "$vv"

# these should all display `A7'
printf -v vv "%b\n" '\01017'
printf "%s"  "$vv"
printf -v vv "%b\n" '\1017'
printf "%s"  "$vv"
printf -v vv "%b\n" '\x417'
printf "%s"  "$vv"

printf -v vv -- "--%b--\n" '\"abcd\"'
printf "%s"  "$vv"
printf -v vv -- "--%b--\n" "\'abcd\'"
printf "%s"  "$vv"

printf -v vv -- "--%b--\n" 'a\\x'
printf "%s"  "$vv"

printf -v vv -- "--%b--\n" '\x'
printf "%s"  "$vv"

Z1=$(printf -- "%b\n" '\a\b\e\f\r\v')
Z2=$'\a\b\e\f\r\v'

if [ "$Z1" != "$Z2" ]; then
	printf "%s"  "whoops: printf -v vv %b and $'' differ" >&2
fi
unset Z1 Z2

printf -v vv -- "--%b--\n" ''
printf "%s"  "$vv"
printf -v vv -- "--%b--\n"
printf "%s"  "$vv"

# the stuff following the \c should be ignored, as well as the rest
# of the format string
printf -v vv -- "--%b--\n" '4.2\c5.4\n'
printf "%s"  "$vv"
echo

# unrecognized escape sequences should by displayed unchanged
printf -v vv -- "--%b--\n" '4\.2'
printf "%s"  "$vv"

# a bare \ should not be processed as an escape sequence
printf -v vv -- "--%b--\n" '\'
printf "%s"  "$vv"

# make sure extra arguments are ignored if the format string doesn't
# actually use them
printf -v vv "\n" 4.4 BSD
printf "%s"  "$vv"
printf -v vv " " 4.4 BSD
printf "%s"  "$vv"
echo

# make sure that a fieldwidth and precision of `*' are handled right
printf -v vv "%10.8s\n" 4.4BSD
printf "%s"  "$vv"
printf -v vv "%*.*s\n" 10 8 4.4BSD
printf "%s"  "$vv"

printf -v vv "%10.8q\n" 4.4BSD
printf "%s"  "$vv"
printf -v vv "%*.*q\n" 10 8 4.4BSD
printf "%s"  "$vv"

printf -v vv "%6b\n" 4.4BSD
printf "%s"  "$vv"
printf -v vv "%*b\n" 6 4.4BSD
printf "%s"  "$vv"

# we handle this crap with homemade code in printf
printf -v vv "%10b\n" 4.4BSD
printf "%s"  "$vv"
printf -v vv -- "--%-10b--\n" 4.4BSD
printf "%s"  "$vv"
printf -v vv "%4.2b\n" 4.4BSD
printf "%s"  "$vv"
printf -v vv "%.3b\n" 4.4BSD
printf "%s"  "$vv"
printf -v vv -- "--%-8b--\n" 4.4BSD
printf "%s"  "$vv"

# test numeric conversions -- these four lines should printf "%s"  identically
printf -v vv "%d %u %i 0%o 0x%x 0x%X\n" 255 255 255 255 255 255
printf "%s"  "$vv"
printf -v vv "%d %u %i %#o %#x %#X\n" 255 255 255 255 255 255
printf "%s"  "$vv"

printf -v vv "%ld %lu %li 0%o 0x%x 0x%X\n" 255 255 255 255 255 255
printf "%s"  "$vv"
printf -v vv "%ld %lu %li %#o %#x %#X\n" 255 255 255 255 255 255
printf "%s"  "$vv"

printf -v vv "%10d\n" 42
printf "%s"  "$vv"
printf -v vv "%10d\n" -42
printf "%s"  "$vv"

printf -v vv "%*d\n" 10 42
printf "%s"  "$vv"
printf -v vv "%*d\n" 10 -42
printf "%s"  "$vv"

# test some simple floating point formats
printf -v vv "%4.2f\n" 4.2
printf "%s"  "$vv"
printf -v vv "%#4.2f\n" 4.2
printf "%s"  "$vv"
printf -v vv "%#4.1f\n" 4.2
printf "%s"  "$vv"

printf -v vv "%*.*f\n" 4 2 4.2
printf "%s"  "$vv"
printf -v vv "%#*.*f\n" 4 2 4.2
printf "%s"  "$vv"
printf -v vv "%#*.*f\n" 4 1 4.2
printf "%s"  "$vv"

printf -v vv "%E\n" 4.2
printf "%s"  "$vv"
printf -v vv "%e\n" 4.2
printf "%s"  "$vv"
printf -v vv "%6.1E\n" 4.2
printf "%s"  "$vv"
printf -v vv "%6.1e\n" 4.2
printf "%s"  "$vv"

printf -v vv "%G\n" 4.2
printf "%s"  "$vv"
printf -v vv "%g\n" 4.2
printf "%s"  "$vv"
printf -v vv "%6.2G\n" 4.2
printf "%s"  "$vv"
printf -v vv "%6.2g\n" 4.2
printf "%s"  "$vv"

# test some of the more esoteric features of POSIX.1 printf
printf -v vv "%d\n" "'string'"
printf "%s"  "$vv"
printf -v vv "%d\n" '"string"'
printf "%s"  "$vv"

printf -v vv "%#o\n" "'string'"
printf "%s"  "$vv"
printf -v vv "%#o\n" '"string"'
printf "%s"  "$vv"

printf -v vv "%#x\n" "'string'"
printf "%s"  "$vv"
printf -v vv "%#X\n" '"string"'
printf "%s"  "$vv"

printf -v vv "%6.2f\n" "'string'"
printf "%s"  "$vv"
printf -v vv "%6.2f\n" '"string"'
printf "%s"  "$vv"

# output from these two lines had better be the same
printf -v vv -- "--%6.4s--\n" abcdefghijklmnopqrstuvwxyz
printf "%s"  "$vv"
printf -v vv -- "--%6.4b--\n" abcdefghijklmnopqrstuvwxyz
printf "%s"  "$vv"

# and these two also
printf -v vv -- "--%12.10s--\n" abcdefghijklmnopqrstuvwxyz
printf "%s"  "$vv"
printf -v vv -- "--%12.10b--\n" abcdefghijklmnopqrstuvwxyz
printf "%s"  "$vv"

# tests for translating \' to ' and \\ to \
# printf -v vv translates \' to ' in the format string...
printf -v vv "\'abcd\'\n"
printf "%s"  "$vv"

# but not when the %b format specification is used
printf -v vv "%b\n" \\\'abcd\\\'
printf "%s"  "$vv"

# but both translate \\ to \
printf -v vv '\\abcd\\\n'
printf "%s"  "$vv"
printf -v vv "%b\n" '\\abcd\\'
printf "%s"  "$vv"

# this was reported as a bug in bash-2.03
# these three lines should all printf "%s"  `26'
printf -v vv "%d\n" 0x1a
printf "%s"  "$vv"
printf -v vv "%d\n" 032
printf "%s"  "$vv"
printf -v vv "%d\n" 26
printf "%s"  "$vv"

# error messages

# this should be an overflow, but error messages vary between systems
# printf -v vv "%lu\n" 4294967296

# ...but we cannot use this because some systems (SunOS4, for example),
# happily ignore overflow conditions in strtol(3)
#printf -v vv "%ld\n" 4294967296

printf -v vv "%10"
printf -v vv "ab%Mcd\n"

# this caused an infinite loop in older versions of printf
printf -v vv "%y" 0

# these should print a warning and `0', according to POSIX.2
printf -v vv "%d\n" GNU
printf "%s"  "$vv"
printf -v vv "%o\n" GNU
printf "%s"  "$vv"

# failures in all bash versions through bash-2.05
printf -v vv "%.0s" foo
printf "%s"  "$vv"
printf -v vv "%.*s" 0 foo
printf "%s"  "$vv"

printf -v vv '%.0b-%.0s\n' foo bar
printf "%s"  "$vv"
printf -v vv '(%*b)(%*s)\n' -4 foo -4 bar
printf "%s"  "$vv"

format='%'`printf '%0100384d' 0`'d\n' 
printf -v vv $format 0
printf "%s"  "$vv"

# failures in all bash versions through bash-3.0 - undercounted characters
unset vv
printf -v vv "  %s %s %s  \n%n" ab cd ef vvv
printf "%s" "$vv"
echo $vvv

# this doesn't work with printf -v vv(3) on all systems
#printf -v vv "%'s\n" foo

# test cases from an austin-group list discussion
# prints ^G as an extension
printf -v vv '%b\n' '\7'
printf "%s"  "$vv"

# prints ^G
printf -v vv '%b\n' '\0007'
printf "%s"  "$vv"

# prints NUL then 7
#printf -v vv '\0007\n'
#printf "%s"  "$vv"

# prints no more than two hex digits
printf -v vv '\x07e\n'
printf "%s"  "$vv"

# additional backslash escapes
printf -v vv '\"\?\n'
printf "%s"  "$vv"
