Created
October 6, 2019 10:48
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what do meta character \s matches?
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$ perl -e 'for my $digit (0x00..0xff) { my $byte = chr $digit; my $match = $byte =~ /^\s$/; printf "0x%x\t%s\n", $digit, $match ? "match" : "-"; }' | |
0x00 - | |
0x01 - | |
0x02 - | |
0x03 - | |
0x04 - | |
0x05 - | |
0x06 - | |
0x07 - | |
0x08 - | |
0x09 match | |
0x0a match | |
0x0b match | |
0x0c match | |
0x0d match | |
0x0e - | |
0x0f - | |
0x10 - | |
0x11 - | |
0x12 - | |
0x13 - | |
0x14 - | |
0x15 - | |
0x16 - | |
0x17 - | |
0x18 - | |
0x19 - | |
0x1a - | |
0x1b - | |
0x1c - | |
0x1d - | |
0x1e - | |
0x1f - | |
0x20 match | |
0x21 - | |
0x22 - | |
0x23 - | |
0x24 - | |
0x25 - | |
0x26 - | |
0x27 - | |
0x28 - | |
0x29 - | |
0x2a - | |
0x2b - | |
0x2c - | |
0x2d - | |
0x2e - | |
0x2f - | |
0x30 - | |
0x31 - | |
0x32 - | |
0x33 - | |
0x34 - | |
0x35 - | |
0x36 - | |
0x37 - | |
0x38 - | |
0x39 - | |
0x3a - | |
0x3b - | |
0x3c - | |
0x3d - | |
0x3e - | |
0x3f - | |
0x40 - | |
0x41 - | |
0x42 - | |
0x43 - | |
0x44 - | |
0x45 - | |
0x46 - | |
0x47 - | |
0x48 - | |
0x49 - | |
0x4a - | |
0x4b - | |
0x4c - | |
0x4d - | |
0x4e - | |
0x4f - | |
0x50 - | |
0x51 - | |
0x52 - | |
0x53 - | |
0x54 - | |
0x55 - | |
0x56 - | |
0x57 - | |
0x58 - | |
0x59 - | |
0x5a - | |
0x5b - | |
0x5c - | |
0x5d - | |
0x5e - | |
0x5f - | |
0x60 - | |
0x61 - | |
0x62 - | |
0x63 - | |
0x64 - | |
0x65 - | |
0x66 - | |
0x67 - | |
0x68 - | |
0x69 - | |
0x6a - | |
0x6b - | |
0x6c - | |
0x6d - | |
0x6e - | |
0x6f - | |
0x70 - | |
0x71 - | |
0x72 - | |
0x73 - | |
0x74 - | |
0x75 - | |
0x76 - | |
0x77 - | |
0x78 - | |
0x79 - | |
0x7a - | |
0x7b - | |
0x7c - | |
0x7d - | |
0x7e - | |
0x7f - | |
0x80 - | |
0x81 - | |
0x82 - | |
0x83 - | |
0x84 - | |
0x85 - | |
0x86 - | |
0x87 - | |
0x88 - | |
0x89 - | |
0x8a - | |
0x8b - | |
0x8c - | |
0x8d - | |
0x8e - | |
0x8f - | |
0x90 - | |
0x91 - | |
0x92 - | |
0x93 - | |
0x94 - | |
0x95 - | |
0x96 - | |
0x97 - | |
0x98 - | |
0x99 - | |
0x9a - | |
0x9b - | |
0x9c - | |
0x9d - | |
0x9e - | |
0x9f - | |
0xa0 - | |
0xa1 - | |
0xa2 - | |
0xa3 - | |
0xa4 - | |
0xa5 - | |
0xa6 - | |
0xa7 - | |
0xa8 - | |
0xa9 - | |
0xaa - | |
0xab - | |
0xac - | |
0xad - | |
0xae - | |
0xaf - | |
0xb0 - | |
0xb1 - | |
0xb2 - | |
0xb3 - | |
0xb4 - | |
0xb5 - | |
0xb6 - | |
0xb7 - | |
0xb8 - | |
0xb9 - | |
0xba - | |
0xbb - | |
0xbc - | |
0xbd - | |
0xbe - | |
0xbf - | |
0xc0 - | |
0xc1 - | |
0xc2 - | |
0xc3 - | |
0xc4 - | |
0xc5 - | |
0xc6 - | |
0xc7 - | |
0xc8 - | |
0xc9 - | |
0xca - | |
0xcb - | |
0xcc - | |
0xcd - | |
0xce - | |
0xcf - | |
0xd0 - | |
0xd1 - | |
0xd2 - | |
0xd3 - | |
0xd4 - | |
0xd5 - | |
0xd6 - | |
0xd7 - | |
0xd8 - | |
0xd9 - | |
0xda - | |
0xdb - | |
0xdc - | |
0xdd - | |
0xde - | |
0xdf - | |
0xe0 - | |
0xe1 - | |
0xe2 - | |
0xe3 - | |
0xe4 - | |
0xe5 - | |
0xe6 - | |
0xe7 - | |
0xe8 - | |
0xe9 - | |
0xea - | |
0xeb - | |
0xec - | |
0xed - | |
0xee - | |
0xef - | |
0xf0 - | |
0xf1 - | |
0xf2 - | |
0xf3 - | |
0xf4 - | |
0xf5 - | |
0xf6 - | |
0xf7 - | |
0xf8 - | |
0xf9 - | |
0xfa - | |
0xfb - | |
0xfc - | |
0xfd - | |
0xfe - | |
0xff - |
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