制御文字

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制御文字

[2] 文字のうち、制御機能を表すものを制御文字 (control characters) といいます。

[3] 文字は制御文字と図形文字に分かれます。
[6] 制御機能のうち1つの文字で表されるものが制御文字です。 他に複数の文字で表わされるものもあります。

仕様書

定義

[1]

制御文字 (control character)
一つのビット組合せだけで表現する制御機能。
JIS X 0211‐1994 4.2.22, JIS X 0202:1998 4.9, JIS X 0201:1997 3.6

文脈

[20] 歴史的に様々な制御文字が定義され使われていました。現在使われているのは CR, LF, NULL くらいです。改行や文字列末尾を表します。

[21] 個々の制御文字の用法は、それぞれの項を参照。

制御文字集合

[7] 制御文字の集合を制御文字集合 (control character set) といいます。

[8] 制御文字集合にはC0文字集合とC1文字集合があります。

[9] 制御文字集合に属さないで使われる制御文字として DELETE があります。

文字カテゴリー Controls (L)

[16] PRECIS の文字カテゴリー Controls (L) は、制御文字をすべて含むものです >>15。

[17] L: Control(cp) = True と定義されています >>15 が、 Unicode に Control という特性はなく、 何を指しているのか定かではありません。

制御文字の一覧

[11] ISO-IR には沢山の制御文字集合が登録されています。

[12] その殆どは既に使われなくなっています。
略号1略号2名前IR001IR007IR026IR036IR040IR048IR056IR067IR073IR074IR077IR104IR105IR106IR107IR124IR130IR132IR133IR134IR135IR136IR140ESC+UCS
ACKACKNOWLEDGE060606060606
APAACTIVE POSITION ADDRESS1F
APBACTIVE POSITION BACKWARD080808
APDACTIVE POSITION DOWN0A0A0A
APFACTIVE POSITION FORWARD090909
APHACTIVE POSITION HOME1E1E1E
APRACTIVE POSITION RETURN0D0D0D
APSACTIVE POSITION SET1C1C
APUACTIVE POSITION UP0B0B0B
ABKALPHA BLACK80
ANBALPHA BLUE84
ANCALPHA CYAN86
ANGALPHA GREEN82
ANMALPHA MAGENTA85
ANRALPHA RED81
ANWALPHA WHITE87
ANYALPHA YELLOW83
APCAPPLICATION PROGRAM COMMAND9F9F
COLBACKGROUND OR FOREGROUND COLOR90
BSBACKSPACE08080808080808
BELBELL070707070707070707
BBDBLACK BACKGROUND9C
BKBBLACK BACKGROUND90
BKFBLACK FOREGROUND8080
BSTABLINK START8E
BSTOBLINK STOP9E
BLBBLUE BACKGROUND94
BLFBLUE FOREGROUND8484
BPHBREAK PERMITTED HERE82
CANCANCEL CHARACTER181818181818181818
CCHCANCEL CHARACTER9494
CRCARRIAGE RETURN0D0D0D0D0D
HTSCHARACTER TABULATION SET88
HTJCHARACTER TABULATION WITH JUSTIFICATION89
CSCLEAR SCREEN0C0C0C
CUSCLOSE-UP FOR SORTING878787
CMDCODING METHOD DELIMITER64
CDYCONCEAL DISPLAY9898
CDCCONCEAL DISPLAY CONTROL92
CSICONTROL SEQUENCE INTRODUCER9B9B9B9B9B
COFCURSOR OFF8F149D
CONCURSOR ON8E11
CNBCYAN BACKGROUND96
CNFCYAN FOREGROUND8686
DLEDATA LINKING ESCAPE101010101010
DEFDDEFINE DRCS83
DEPMDEFINE MACRO80
DEFPDEFINE P-MACRO81
DEFXDEFINE TEXTURE84
DEFTDEFINE TRANSMIT-MACRO82
DELDELETE7F
DC4DEVICE CONTROL FOUR1414141414141414
DC1DEVICE CONTROL ONE11111111111111
DCSDEVICE CONTROL STRING9090
DC3DEVICE CONTROL THREE13131313131313
DC2DEVICE CONTROL TWO12121212121212
DMIDISABLE MANUAL INPUT60
DBHDOUBLE HEIGHT8D8D8D
DBSDOUBLE SIZE8F8F8F
DBWDOUBLE WIDTH8E8E
EDC4EDC FOUR94
EDC1EDC ONE91
EDC3EDC THREE93
EDC2EDC TWO92
EABEMBEDING ANNOTATION BEGINNING919191
EAEEMBEDING ANNOTATION END929292
EMIENABLE MANUAL INPUT62
ENDEND85
EBXEND BOX8A8A
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ENQENQUIRY050505050505
ESCESCAPE1B1B1B1B1B1B1B1B1B1B1B1B1B1B
FILFIL CHARACTER8A
FSFILE SEPARATOR1C1C1C
FLCFLASH CURSOR9B
FSHFLASHING8888
FLCFLASHING CONTROL91
FT1FONT 111
FT2FONT 212
FT3FONT 313
FFFORM FEED0C0C0C0C0C
FE0(BS)FORMAT EFFECTOR 0 (BACKSPACE)080808
FE1(HT)FORMAT EFFECTOR 1 (HORISONTAL TABULATION)090909
FE2(LF)FORMAT EFFECTOR 2 (LINE FEED)0A0A0A
FE3(VT)FORMAT EFFECTOR 3 (VERTICAL TABULATION)0B0B0B
FE4(FF)FORMAT EFFECTOR 4 (FORM FEED)0C0C0C
FE5(CR)FORMAT EFFECTOR 5 (CARRIAGE RETURN)0D0D0D
FOFORMATTING0909
GRBGREEN BACKGROUND92
GRFGREEN FOREGROUND8282
GSGROUP SEPARATOR1D1D1D1D
HMSHOLD MOSAIC9E
HTHORIZONTAL TABULATION09090909
HTSHORIZONTAL TABULATION SET8888
HTJHORIZONTAL TABULATION WITH JUSTIFICATION8989
ISIIDENTIFICATION NUMBER-IN-CONTEXT INDICATOR8C
INDINDEX84
INCINDICATOR FOR NON-STANDARD CHARACTER99
IS1INFORMATION SEPARATOR 11F0F
IS1(US)INFORMATION SEPARATOR 1 (UNIT SEPARATOR)1F1F0F
IS2INFORMATION SEPARATOR 21E0E
IS2(RS)INFORMATION SEPARATOR 2 (RECODE SEPARATOR)1E1E0E
IS3INFORMATION SEPARATOR 31D0D
IS3(GS)INFORMATION SEPARATOR 3 (GROUP SEPARATOR)1D1D0D
IS4INFORMATION SEPARATOR 41C0C
IS4(FS)INFORMATION SEPARATOR 4 (FILE SEPARATOR)1C0C
INTINTERRUPT61
ISBITEM SPECIFICATION BEGINNING93
ISEITEM SPECIFICATION END94
IPOIVERTED POLARITY9D
JTJUSTIFY1F1F
KWBKEYWORD BEGINNING9C9C9C
KWEKEYWORD END9D9D9D
KWKILL WORD1818
LFLINE FEED0A0A0A0A0A0A0A
VTSLINE TABULATION SET8A
LS1LOCKING SHIFT ONE0E0E0E0E
LS3LOCKING SHIFT THREE6F
LS3RLOCKING SHIFT THREE RIGHT7C
LS2LOCKING SHIFT TWO6E
LS2RLOCKING SHIFT TWO RIGHT7D
LS0LOCKING SHIFT ZERO0F0F0F0F
LRLOWER RAIL0F
MGFMAGENDA FOREGROUND8585
MGBMAGENTA BACKGROUND95
MSZMEDIUM SIZE89
METXMEDIUM TEXT8B
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MBKMOSAIC BKACK90
MSBMOSAIC BLUE94
MSCMOSAIC CYAN96
MSGMOSAIC GREN92
MSMMOSAIC MAGENTA95
MSRMOSAIC RED91
MSWMOSAIC WHITE97
MSYMOSAIC YELLOW93
NAKNEGATIVE ACKNOWLEDGE151515151515
NBDNEW BACKGROUND9D
NELNLNEXT LINE8585
NBHNO BREAK HERE83
NSBNON-SORTING CHARACTER(S) BEGINNING888888
NSENON-SORTING CHARACTER(S) END898989
NPONORMAL POLARITY9C
NSZNORMAL SIZE8A
NOTXNORMAL TEXT8C
NORVNORMAL VIDEO89
NSRNOW SELECTIVE RESET1F1F
NULNULL000000000000000000
OSCOPERATING SYSTEM COMMAND9D9D
OSCOPTIONAL SYLLABICATION CONTROL8D
PLDPARTIAL LINE DOWN8B8B8B8B
PLUPARTIAL LINE UP8C8C8C8C
PSBPERMUTATION STRING BEGINNING9E9E9E
PSEPERMUTATION STRING END9F9F9F
P-MACROPHOTO MACRO95
PMPRIVACY MESSAGE9E9E
PU1PRIVATE USE ONE9191
PU2PRIVATE USE TWO9292
PROPROTECT90
PRTPROTECTED9F
QCQUAD CENTURE1D1D
QLQUAD LEFT0D0D
QRQUAD RIGHT1E1E
RSRECODE SEPARATOR1E1E1E1E
RDBRED BACKGROUND91
RDFRED FOREGROUND8181
RMSRELEASE MOSAIC9F
REPREPEAT86
RPTREPEAT12
RPCREPEAT CONTROL98
REPEREPEAT TO END OF LINE87
RISRESET TO INITIAL STATE63
RIREVERSE INDEX8D8E
RIREVERSE LINE FEED8E
REVVREVERSE VIDEO88
SCOFSCROLL OFF98
SCONSCROLL ON97
SSBSECONDARY SORTING VALUE BEGINNING9797
SSESECONDARY SORTING VALUE END9898
SDSSERVICE DELIMITER CHARACTER1A
STSSET TRANSMIT STATE9393
SISHIFT IN0F0F0F0F0F0F0F
SOSHIFT OUT0E0E0E0E0E0E0E
SCISINGLE CHARACTER INTRODUCER9A
SS3SINGLE SHIFT THREE8F8F8F1D1D1D1D8F
SS2SINGLE SHIFT TWO1C8E8E8E19191919198E
NSZSINGLE SIZE8C8C
SZXSIZE CONTROL8B
SSZSMALL SIZE88
SMTXSMALL TEXT8A
SGCISINGLE GRAPHIC CHARACTER INTRODUCER
SIBSORTING INTERPOLATION BEGINNING9595
SIESORTING INTERPOLATION END9696
SBXSTART BOX8B8B
SPLSTART LINING99
STLSTART LINING9A9A
SPASTART OF GUARDED AREA9696
SOHSTART OF HEADING010101010101
SCDSTART OF INSTRUCTION0C0C
SSASTART OF SELECTED AREA8686
SOSSTART OF STRING98
STXSTART OF TEXT020202020202
STDSTEADY8989
STCSTEADY CURSOR9C
SCDSTOP CONCEAL9F
SPLSTOP LINING9999
STLSTOP LINING9A
STSTRING TERMINATOR9C9C
SUBSUBSTITUTE1A1A1A1A1A1A1A1A
SSSUPER SHIFT1C1C
SYNSYNCHRONOUS IDLE161616161616
TCITAG-IN-CONTEXT INDICATOR8B
TC1(SOH)TRANSMISSION CONTROL CHARACTER 1 (START OF HEADING)010101
TC10(ETB)TRANSMISSION CONTROL CHARACTER 10 (END OF TRANSMISSION BLOCK)1717
TC2(STX)TRANSMISSION CONTROL CHARACTER 2 (START OF TEXT)020202
TC3(ETX)TRANSMISSION CONTROL CHARACTER 3 (END OF TEXT)030303
TC4(EOT)TRANSMISSION CONTROL CHARACTER 4 (END OF TRANSMISSION)040404
TC5(ENQ)TRANSMISSION CONTROL CHARACTER 5 (ENQUIRY)050505
TC6(ACK)TRANSMISSION CONTROL CHARACTER 6 (ACKNOWLEDGE)060606
TC7(DLE)TRANSMISSION CONTROL CHARACTER 7 (DATA LINK ESCAPE)101010
TC8(NAK)TRANSMISSION CONTROL CHARACTER 8 (NOGATIVE ACKNOWLEDGE)151515
TC9(SYN)TRANSMISSION CONTROL CHARACTER 9 (SYNCHRONUS IDLE)161616
TRBTRANSPARENT BACKGROUND9E
USTAUNDERLINE START99
USTOUNDERLINE STOP9A
USUNIT SEPARATOR1F1F1F
UNPUNPROTECT9F
UNPUNPROTECTED9E
URUPPER RAIL0E
VTVERTICAL TABULATION0B0B0B0B
VTSVERTICAL TABULATION SET8A8A
WHBWHITE BACKGROUND97
WHFWHITE FOREGROUND8787
WWOFWORD WRAP OFF96
WWONWORD WRAP ON95
YLBYELLOW BACKGROUND93
YLFYELLOW FOREGROUND8383

[10] なお SPACE は現在では制御文字ではなく図形文字に分類されています。

歴史

[4] Web Applications 1.0 r8173 Define 'control characters' formally. ( ( 版)) <http://html5.org/tools/web-apps-tracker?from=8172&to=8173>

[5] [css-text] Add form feed to list of exceptional characters. Need to g… · w3c/csswg-drafts@e691135 ( 版) <https://github.com/w3c/csswg-drafts/commit/e691135763b4e4feb7f87cd9e68ade6390be90ba>

[13] RFC 2486 - The Network Access Identifier ( 版) <https://tools.ietf.org/html/rfc2486>

Ctl = %x00-1F / %x7F

; the control characters (ASCII codes 0 through 31

; inclusive and 127)

[826] Unicode Character Encoding Stability Policy ( ( 版)) <http://www.unicode.org/policies/stability_policy.html#Property_Value>

[14] [css-text] Add form feed to list of exceptional characters. Need to g… · w3c/csswg-drafts@e691135 ( 版) <https://github.com/w3c/csswg-drafts/commit/e691135763b4e4feb7f87cd9e68ade6390be90ba>

[18] Define control and noncharacter (annevk著, ) <https://github.com/whatwg/infra/commit/ad1b87aecce01759096fcdbf6acc2bd6096c3168>

[19] Editorial: use noncharacter and control from Infra (annevk著, ) <https://github.com/whatwg/html/commit/70925237a88d9802bfe7224fe9c78b146af615be>

Updated: