printf: fix %b, fix several bugs in %*.*, fix compat issues with

 aborting too early, support %zd; expand testsuite

function                                             old     new   delta
get_width_prec                                         -      46     +46
multiconvert                                          82      99     +17
conv_strtod                                           44      54     +10
print_direc                                          382     391      +9
printf_main                                          629     633      +4
conv_strtoul                                          20      16      -4
conv_strtol                                           20      16      -4
my_xstrtoul                                           20       -     -20
my_xstrtol                                            20       -     -20
my_xstrtod                                            21       -     -21
------------------------------------------------------------------------------
(add/remove: 1/3 grow/shrink: 4/2 up/down: 86/-69)             Total: 17 bytes

1 files changed, 79 insertions, 9 deletions

diff --git a/testsuite/printf.tests b/testsuite/printf.tests
index d6b60fb..a5c71ec 100755
--- a/testsuite/printf.tests
+++ b/testsuite/printf.tests
@@ -1,6 +1,6 @@
 #!/bin/sh
-
-set -e
+# Copyright 2008 by Denys Vlasenko
+# Licensed under GPL v2, see file LICENSE for details.
 
 . testing.sh
 
@@ -9,25 +9,95 @@ bb="busybox "
 
 # testing "test name" "command" "expected result" "file input" "stdin"
 
-testing "printf produce no further output 1" \
+testing "printf produces no further output 1" \
 	"${bb}printf '\c' foo" \
 	"" \
 	"" ""
 
-testing "printf produce no further output 2" \
-	"${bb}printf '%s\c' foo \$HOME" \
+testing "printf produces no further output 2" \
+	"${bb}printf '%s\c' foo bar" \
 	"foo" \
 	"" ""
 
-testing "printf repeatedly use pattern for each argv" \
+testing "printf repeatedly uses pattern for each argv" \
 	"${bb}printf '%s\n' foo \$HOME" \
 	"foo\n$HOME\n" \
 	"" ""
 
-# Why ()s are necessary I have no idea...
+testing "printf understands %b escaped_string" \
+	"${bb}printf '%b' 'a\tb' 'c\\d\n' 2>&1; echo \$?" \
+	"a\tbc\\d\n""0\n" \
+	"" ""
+
+testing "printf understands %d '\"x' \"'y\" \"'zTAIL\"" \
+	"${bb}printf '%d\n' '\"x' \"'y\" \"'zTAIL\" 2>&1; echo \$?" \
+	"120\n""121\n""122\n""0\n" \
+	"" ""
+
+testing "printf understands %s '\"x' \"'y\" \"'zTAIL\"" \
+	"${bb}printf '%s\n' '\"x' \"'y\" \"'zTAIL\" 2>&1; echo \$?" \
+	"\"x\n""'y\n""'zTAIL\n""0\n" \
+	"" ""
+
+testing "printf understands %23.12f" \
+	"${bb}printf '|%23.12f|\n' 5.25 2>&1; echo \$?" \
+	"|         5.250000000000|\n""0\n" \
+	"" ""
+
+testing "printf understands %*.*f" \
+	"${bb}printf '|%*.*f|\n' 23 12 5.25 2>&1; echo \$?" \
+	"|         5.250000000000|\n""0\n" \
+	"" ""
+
+testing "printf understands %*f with negative width" \
+	"${bb}printf '|%*f|\n' -23 5.25 2>&1; echo \$?" \
+	"|5.250000               |\n""0\n" \
+	"" ""
+
+testing "printf understands %.*f with negative precision" \
+	"${bb}printf '|%.*f|\n' -12 5.25 2>&1; echo \$?" \
+	"|5.250000|\n""0\n" \
+	"" ""
+
+testing "printf understands %*.*f with negative width/precision" \
+	"${bb}printf '|%*.*f|\n' -23 -12 5.25 2>&1; echo \$?" \
+	"|5.250000               |\n""0\n" \
+	"" ""
+
+testing "printf understands %zd" \
+	"${bb}printf '%zd\n' -5 2>&1; echo \$?" \
+	"-5\n""0\n" \
+	"" ""
+
+testing "printf understands %ld" \
+	"${bb}printf '%ld\n' -5 2>&1; echo \$?" \
+	"-5\n""0\n" \
+	"" ""
+
+# We are "more correct" here than bash/coreutils: they happily print -2
+# as if it is a huge unsigned number
+testing "printf handles %u -N" \
+	"${bb}printf '%u\n' 1 -2 3 2>&1; echo \$?" \
+	"1\n""printf: -2: invalid number\n""0\n""3\n""0\n" \
+	"" ""
+
+# Actually, we are wrong here: exit code should be 1
+testing "printf handles %d bad_input" \
+	"${bb}printf '%d\n' 1 - 2 bad 3 123bad 4 2>&1; echo \$?" \
+"1\n""printf: -: invalid number\n""0\n"\
+"2\n""printf: bad: invalid number\n""0\n"\
+"3\n""printf: 123bad: invalid number\n""0\n"\
+"4\n""0\n" \
+	"" ""
+
 testing "printf aborts on bare %" \
-	"(${bb}printf '%' a b c) 2>&1; echo \$?" \
-	"printf: invalid directive '%'\n""1\n" \
+	"${bb}printf '%' a b c 2>&1; echo \$?" \
+	"printf: %: invalid format\n""1\n" \
+	"" ""
+
+testing "printf aborts on %r" \
+	"${bb}printf '%r' a b c 2>&1; echo \$?" \
+	"printf: %r: invalid format\n""1\n" \
 	"" ""
 
 exit $FAILCOUNT