tests/printf.tests

   1 LC_ALL=C
   2
   3 # these should output error messages -- the format is required
   4 printf
   5 printf --
   6
   7 # these should output nothing
   8 printf ""
   9 printf -- ""
  10
  11 # this should expand escape sequences in the format string, nothing else
  12 printf "\tone\n"
  13
  14 # this should not cut off output after the \c
  15 printf "one\ctwo\n"
  16
  17 # and unrecognized backslash escapes should have the backslash preserverd
  18 printf "4\.2\n"
  19
  20 printf "no newline " ; printf "now newline\n"
  21
  22 # %% -> %
  23 printf "%%\n"
  24
  25 # simple character output
  26 printf "%c\n" ABCD
  27
  28 # test simple string output
  29 printf "%s\n" unquoted
  30
  31 # test quoted string output
  32 printf "%s %q\n" unquoted quoted
  33 printf "%s%10q\n" unquoted quoted
  34
  35 printf "%q\n" 'this&that'
  36
  37 # make sure the format string is reused to use up arguments
  38 printf "%d " 1 2 3 4 5; printf "\n"
  39
  40 # make sure that extra format characters get null arguments
  41 printf "%s %d %d %d\n" onestring
  42
  43 printf "%s %d %u %4.2f\n" onestring
  44
  45 printf -- "--%s %s--\n" 4.2 ''
  46 printf -- "--%s %s--\n" 4.2
  47
  48 # test %b escapes
  49
  50 # 8 is a non-octal digit, so the `81' should be output
  51 printf -- "--%b--\n" '\n\081'
  52
  53 printf -- "--%b--\n" '\t\0101'
  54 printf -- "--%b--\n" '\t\101'
  55
  56 # these should all display `A7'
  57 echo -e "\1017"
  58 echo -e "\x0417"
  59
  60 printf "%b\n" '\01017'
  61 printf "%b\n" '\1017'
  62 printf "%b\n" '\x0417'
  63
  64 printf -- "--%b--\n" '\"abcd\"'
  65 printf -- "--%b--\n" "\'abcd\'"
  66
  67 printf -- "--%b--\n" 'a\\x'
  68
  69 printf -- "--%b--\n" '\x'
  70
  71 Z1=$(printf -- "%b\n" '\a\b\e\f\r\v')
  72 Z2=$'\a\b\e\f\r\v'
  73
  74 if [ "$Z1" != "$Z2" ]; then
  75         echo "whoops: printf %b and $'' differ" >&2
  76 fi
  77 unset Z1 Z2
  78
  79 printf -- "--%b--\n" ''
  80 printf -- "--%b--\n"
  81
  82 # the stuff following the \c should be ignored, as well as the rest
  83 # of the format string
  84 printf -- "--%b--\n" '4.2\c5.4\n'; printf "\n"
  85
  86 # make sure that a fieldwidth and precision of `*' are handled right
  87 printf "%10.8s\n" 4.4BSD
  88 printf "%*.*s\n" 10 8 4.4BSD
  89
  90 printf "%10.8q\n" 4.4BSD
  91 printf "%*.*q\n" 10 8 4.4BSD
  92
  93 printf "%6b\n" 4.4BSD
  94 printf "%*b\n" 6 4.4BSD
  95
  96 # we handle this crap with homemade code in printf.def
  97 printf "%10b\n" 4.4BSD
  98 printf -- "--%-10b--\n" 4.4BSD
  99 printf "%4.2b\n" 4.4BSD
 100 printf "%.3b\n" 4.4BSD
 101 printf -- "--%-8b--\n" 4.4BSD
 102
 103 # test numeric conversions -- these four lines should echo identically
 104 printf "%d %u %i 0%o 0x%x 0x%X\n" 255 255 255 255 255 255
 105 printf "%d %u %i %#o %#x %#X\n" 255 255 255 255 255 255
 106
 107 printf "%ld %lu %li 0%o 0x%x 0x%X\n" 255 255 255 255 255 255
 108 printf "%ld %lu %li %#o %#x %#X\n" 255 255 255 255 255 255
 109
 110 printf "%10d\n" 42
 111 printf "%10d\n" -42
 112
 113 printf "%*d\n" 10 42
 114 printf "%*d\n" 10 -42
 115
 116 # test some simple floating point formats
 117 printf "%4.2f\n" 4.2
 118 printf "%#4.2f\n" 4.2
 119 printf "%#4.1f\n" 4.2
 120
 121 printf "%*.*f\n" 4 2 4.2
 122 printf "%#*.*f\n" 4 2 4.2
 123 printf "%#*.*f\n" 4 1 4.2
 124
 125 printf "%E\n" 4.2
 126 printf "%e\n" 4.2
 127 printf "%6.1E\n" 4.2
 128 printf "%6.1e\n" 4.2
 129
 130 printf "%G\n" 4.2
 131 printf "%g\n" 4.2
 132 printf "%6.2G\n" 4.2
 133 printf "%6.2g\n" 4.2
 134
 135 # test some of the more esoteric features of POSIX.1 printf
 136 printf "%d\n" "'string'"
 137 printf "%d\n" '"string"'
 138
 139 printf "%#o\n" "'string'"
 140 printf "%#o\n" '"string"'
 141
 142 printf "%#x\n" "'string'"
 143 printf "%#X\n" '"string"'
 144
 145 printf "%6.2f\n" "'string'"
 146 printf "%6.2f\n" '"string"'
 147
 148 # output from these two lines had better be the same
 149 printf -- "--%6.4s--\n" abcdefghijklmnopqrstuvwxyz
 150 printf -- "--%6.4b--\n" abcdefghijklmnopqrstuvwxyz
 151
 152 # and these two also
 153 printf -- "--%12.10s--\n" abcdefghijklmnopqrstuvwxyz
 154 printf -- "--%12.10b--\n" abcdefghijklmnopqrstuvwxyz
 155
 156 # error messages
 157
 158 # this should be an overflow, but error messages vary between systems
 159 # printf "%lu\n" 4294967296
 160
 161 # ...but we cannot use this because some systems (SunOS4, for example),
 162 # happily ignore overflow conditions in strtol(3)
 163 #printf "%ld\n" 4294967296
 164
 165 # in the future this may mean to put the output into VAR, but for
 166 # now it is an error
 167 printf -v var "%10d" $RANDOM
 168
 169 printf "%10"
 170 printf "ab%Mcd\n"
 171
 172 # this caused an infinite loop in older versions of printf
 173 printf "%y" 0
 174
 175 printf "%d\n" GNU
 176 printf "%o\n" GNU