Your Go-To Regular Expression Reference: Hexadecimals

\x00 matches the NULL character, char code 0.

\x01 matches SOH (start of heading), char code 1.

\x02 matches STX (start of text), char code 2.

\x03 matches ETX (end of text), char code 3.

\x04 matches EOT (end of transmit), char code 4.

\x05 matches ENQ (enquiry), char code 5.

\x06 matches ACK (acknowledge), char code 6.

\x07 matches BELL (bell), char code 7.

\x08 matches BS (backspace), char code 8.

\x09 matches TAB (horizontal tab), char code 9.

\x0a matches LINE FEED (line feed), char code 10.

\x0b matches VERTICAL TAB (vertical tab), char code 11.

\x0c matches FORM FEED (form feed), char code 12.

\x0d matches CARRIAGE RETURN (carriage return), char code 13.

\x0e matches SO (shift out), char code 14.

\x0f matches SI (shift in), char code 15.

\x10 matches DLE (data line escape), char code 16.

\x11 matches DC1 (device control 1), char code 17.

\x12 matches DC2 (device control 2), char code 18.

\x13 matches DC3 (device control 3), char code 19.

\x14 matches DC4 (device control 4), char code 20.

\x15 matches NAK (negative acknowledge), char code 21.

\x16 matches SYN (synchronous idle), char code 22.

\x17 matches ETB (end of transmit block), char code 23.

\x18 matches CAN (cancel), char code 24.

\x19 matches EM (end of medium), char code 25.

\x1a matches SUB (substitute), char code 26.

\x1b matches ESC (escape), char code 27.

\x1c matches FS (file separator), char code 28.

\x1d matches GS (group separator), char code 29.

\x1e matches RS (record separator), char code 30.

\x1f matches US (unit separator), char code 31.

\x20 matches SPACE character, char code 32.

\x21 matches !, char code 33.

\x22 matches ", char code 34.

\x23 matches #, char code 35.

\x24 matches $, char code 36.

\x25 matches %, char code 37.

\x26 matches &, char code 38.

\x27 matches ', char code 39.

\x28 matches (, char code 40.

\x29 matches ), char code 41.

\x2a matches *, char code 42.

\x2b matches +, char code 43.

\x2c matches ``,`, char code 44.

\x2d matches -, char code 45.

\x2e matches ., char code 46.

\x2f matches /, char code 47.

\x30 matches 0, char code 48.

\x31 matches 1, char code 49.

\x32 matches 2, char code 50.

\x33 matches 3, char code 51.

\x34 matches 4, char code 52.

\x35 matches 5, char code 53.

\x36 matches 6, char code 54.

\x37 matches 7, char code 55.

\x38 matches 8, char code 56.

\x39 matches 9, char code 57.

\x3a matches :, char code 58.

\x3b matches ;, char code 59.

\x3c matches <, char code 60.

\x3d matches =, char code 61.

\x3e matches >, char code 62.

\x3f matches ?, char code 63.

\x40 matches @, char code 64.

\x41 matches A, char code 65.

\x42 matches B, char code 66.

\x43 matches C, char code 67.

\x44 matches D, char code 68.

\x45 matches E, char code 69.

\x46 matches F, char code 70.

\x47 matches G, char code 71.

\x48 matches H, char code 72.

\x49 matches I, char code 73.

\x4a matches J, char code 74.

\x4b matches K, char code 75.

\x4c matches L, char code 76.

\x4d matches M, char code 77.

\x4e matches N, char code 78.

\x4f matches O, char code 79.

\x50 matches P, char code 80.

\x51 matches Q, char code 81.

\x52 matches R, char code 82.

\x53 matches S, char code 83.

\x54 matches T, char code 84.

\x55 matches U, char code 85.

\x56 matches V, char code 86.

\x57 matches W, char code 87.

\x58 matches X, char code 88.

\x59 matches Y, char code 89.

\x5a matches Z, char code 90.

\x5b matches [, char code 91.

\x5c matches \, char code 92.

\x5d matches ], char code 93.

\x5e matches ^, char code 94.

\x5f matches _, char code 95.

\x60 matches ```, char code 96.

\x61 matches a, char code 97.

\x62 matches b, char code 98.

\x63 matches c, char code 99.

\x64 matches d, char code 100.

\x65 matches e, char code 101.

\x66 matches f, char code 102.

\x67 matches g, char code 103.

\x68 matches h, char code 104.

\x69 matches i, char code 105.

\x6a matches j, char code 106.

\x6b matches k, char code 107.

\x6c matches l, char code 108.

\x6d matches m, char code 109.

\x6e matches n, char code 110.

\x6f matches o, char code 111.

\x70 matches p, char code 112.

\x71 matches q, char code 113.

\x72 matches r, char code 114.

\x73 matches s, char code 115.

\x74 matches t, char code 116.

\x75 matches u, char code 117.

\x76 matches v, char code 118.

\x77 matches w, char code 119.

\x78 matches x, char code 120.

\x79 matches y, char code 121.

\x7a matches z, char code 122.

\x7b matches {, char code 123.

\x7c matches |, char code 124.

\x7d matches }, char code 125.

\x7e matches ~, char code 126.

\x7f matches DEL (delete), char code 127.

\x80 matches €, char code 128.

\x81 (char code 129) seems to be unused.

\x82 matches BREAK PERMITTED HERE, char code 130.

\x83 matches NO BREAK HERE, char code 131.

\x84 (char code 132) seems to be unused.

\x85 matches NEL (next line), char code 133.

\x86 matches START OF SELECTED AREA, char code 134.

\x87 matches END OF SELECTED AREA, char code 135.

\x88 matches CHARACTER TABULATION SET, char code 136.

\x89 matches CHARACTER TABULATION SET WITH JUSTIFICATION, char code 137.

\x8a matches LINE TABULATION SET, char code 138.

\x8b matches PARTIAL LINE FORWARD, char code 139.

\x8c matches PARTIAL LINE BACKWARD, char code 140.

\x8d matches REVERSE LINE FEED, char code 141.

\x8e matches SINGLE SHIFT TWO, char code 142.

\x8f matches SINGLE SHIFT THREE, char code 143.

\x90 matches DEVICE CONTROL STRING, char code 144.

\x91 matches PRIVATE USE ONE, char code 145.

\x92 matches PRIVATE USE TWO, char code 146.

\x93 matches SET TRANSMIT STATE, char code 147.

\x94 matches CANCEL CHARACTER, char code 148.

\x95 matches MESSAGE WAITING, char code 149.

\x96 matches START OF GUARDED AREA, char code 150.

\x97 matches END OF GUARDED AREA, char code 151.

\x98 matches START OF STRING, char code 152.

\x99 (char code 153), seems to not be assigned.

\x9a matches SINGLE CHARACTER INTRODUCER, char code 154.

\x9b matches CONTROL SEQUENCE INTRODUCER, char code 155.

\x9c matches STRING TERMINATOR, char code 156.

\x9d matches OPERATING SYSTEM COMMAND, char code 157.

\x9e matches PRIVACY MESSAGE, char code 158.

\x9f matches APPLICATION PROGRAM COMMAND, char code 159.

\xa0 matches a non-breaking space, char code 160. (Like &nbsp in html)

\xa1 matches ¡, char code 161.

\xa2 matches ¢, char code 162.

\xa3 matches £, char code 163.

\xa4 matches ¤, char code 164.

\xa5 matches ¥, char code 165.

\xa6 matches ¦, char code 166.

\xa7 matches §, char code 167.

\xa8 matches ¨, char code 168.

\xa9 matches ©, char code 169.

\xaa matches ª, char code 170.

\xab matches «, char code 171.

\xac matches ¬, char code 172.

\xad matches a SOFT HYPHEN, an invisible format character indicating a possible hyphenation location`, char code 173.

\xae matches ®, char code 174.

\xaf matches ¯, char code 175.

\xb0 matches °, char code 176.

\xb1 matches ±, char code 177.

\xb2 matches ², char code 178.

\xb3 matches ³, char code 179.

\xb4 matches ´, char code 180.

\xb5 matches µ, char code 181.

\xb6 matches , char code 182.

\xb7 matches ·, char code 183.

\xb8 matches ¸, char code 184.

\xb9 matches ¹, char code 185.

\xba matches º, char code 186.

\xbb matches », char code 187.

\xbc matches ¼, char code 188.

\xbd matches ½, char code 189.

\xbe matches ¾, char code 190.

\xbf matches ¿, char code 191.

\xc0 matches À, char code 192.

\xc1 matches Á, char code 193.

\xc2 matches Â, char code 194.

\xc3 matches Ã, char code 195.

\xc4 matches Ä, char code 196.

\xc5 matches Å, char code 197.

\xc6 matches Æ, char code 198.

\xc7 matches Ç, char code 199.

\xc8 matches È, char code 200.

\xc9 matches É, char code 201.

\xca matches Ê, char code 202.

\xcb matches Ë, char code 203.

\xcc matches Ì, char code 204.

\xcd matches Í, char code 205.

\xce matches Î, char code 206.

\xcf matches Ï, char code 207.

\xd0 matches Ð, char code 208.

\xd1 matches Ñ, char code 209.

\xd2 matches Ò, char code 210.

\xd3 matches Ó, char code 211.

\xd4 matches Ô, char code 212.

\xd5 matches Õ, char code 213.

\xd6 matches Ö, char code 214.

\xd7 matches ×, char code 215.

\xd8 matches Ø, char code 216.

\xd9 matches Ù, char code 217.

\xda matches Ú, char code 218.

\xdb matches Û, char code 219.

\xdc matches Ü, char code 220.

\xdd matches Ý, char code 221.

\xde matches Þ, char code 222.

\xdf matches ß, char code 223.

\xe0 matches à, char code 224.

\xe1 matches á, char code 225.

\xe2 matches â, char code 226.

\xe3 matches ã, char code 227.

\xe4 matches ä, char code 228.

\xe5 matches å, char code 229.

\xe6 matches æ, char code 230.

\xe7 matches ç, char code 231.

\xe8 matches è, char code 232.

\xe9 matches é, char code 233.

\xea matches ê, char code 234.

\xeb matches ë, char code 235.

\xec matches ì, char code 236.

\xed matches í, char code 237.

\xee matches î, char code 238.

\xef matches ï, char code 239.

\xf0 matches ð, char code 240.

\xf1 matches ñ, char code 241.

\xf2 matches ò, char code 242.

\xf3 matches ó, char code 243.

\xf4 matches ô, char code 244.

\xf5 matches õ, char code 245.

\xf6 matches ö, char code 246.

\xf7 matches ÷, char code 247.

\xf8 matches ø, char code 248.

\xf9 matches ù, char code 249.

\xfa matches ú, char code 250.

\xfb matches û, char code 251.

\xfc matches ü, char code 252.

\xfd matches ý, char code 253.

\xfe matches þ, char code 254.

\xff matches ÿ, char code 255.