VMS Help  —  PEEK  Watching  Init and Finish Sequences
  When watching a terminal, it is desirable to set the proper modes on the
  watcher's terminal before displaying output from the watched terminal.

  Ideally, the watcher's terminal should have the same modes set as the
  terminal which is being watched. This ensures the output will display
  correctly.

  This is not a problem when using Peek/Spy's initial-screen-display
  feature since the correct initial settings for the watcher's terminal
  will be output to it as part of the initial-screen display.

  However when the screen-saver is NOT in use by the person being
  watched, it may be desirable to set some initial terminal modes on
  your terminal before you begin watching. In addition you may also
  want to restore your own terminal modes when finished watching another
  terminal.

  The Peek/Spy /INIT_SEQUENCE=() qualifier may be used to specify
  an initial modes-setting sequence which is sent to your terminal just
  before you start watching. The /FINISH_SEQUENCE=() qualifier
  specifies a modes-setting sequence which will be sent to your terminal
  after you finish watching someone.

  Each of these qualifiers accepts a list of keywords. Each keyword
 causes a particular sequence to be sent to the watcher's terminal.

1  –  Keywords

  These are the keywords available for /INIT_SEQUENCE and
  /FINISH_SEQUENCE.

  Each keyword causes a particular sequence to be sent to
  the watcher's terminal.

  The order in which these sequences are output is fixed and does not
  depend on the order in which they appear on the command line.

  For information on the fixed-ordering of these sequences, see the
  PEEK Watching Init_and_Finish_Sequences Subtopic: Sequence_Ordering.

1.1  –  132COLUMN

  Outputs "<ESC>[?3h"

1.2  –  80COLUMN

  Outputs "<ESC>[?3l"

1.3  –  APPLICATION

  Outputs "<ESC>="

1.4  –  CHARACTER_SET=()

  CHARACTER_SET takes a list of the keywords HANJI, KANJI, KATAKANA,
  MULTINATIONAL, STANDARD, or G0=keyword, G1=keyword, G2=keyword,
  G3=keyword, GL=keyword, GR=keyword.

  The fixed order in which these terminal control sequences are output
  allows one to use the STANDARD, MULTINATIONAL, KANJI, or KATAKANA
  keywords and then customize that settings using one of the G0, G1,
  G2, G3, GL, GR keywords.

1.5  –  MULTINATIONAL

  The keyword STANDARD or MULTINATIONAL equates to the command:

   CHARACTER_SET=(G0=ASCII,G1=ASCII,G2=DECSUPGR,G3=DECSUPGR,-
                  GL=G0,GR=G2)

  It outputs "<ESC>(B<ESC>)B<ESC>*%5<ESC>+%5<SI><ESC>}"

1.6  –  STANDARD

  The keyword STANDARD or MULTINATIONAL equates to the command:

   CHARACTER_SET=(G0=ASCII,G1=ASCII,G2=DECSUPGR,G3=DECSUPGR,-
                  GL=G0,GR=G2)

  It outputs "<ESC>(B<ESC>)B<ESC>*%5<ESC>+%5<SI><ESC>}"

1.7  –  HANJI

  The keyword HANJI equates to the following command which might be
  used on a Korean HANJI terminal:

   CHARACTER_SET=(G0=KS_ROMAN,G1=DECSPEC,G2=KOREAN,G3=KOREAN,-
                        GL=G0,GR=G3)

  It outputs "<ESC>\(%?\<ESC>\)0\<ESC>\*4\<ESC>\+4\<SI><ESC>\|\".

1.8  –  KANJI

  The keyword KANJI equates to the following command which might be
  used on a Japanese fullset KANJI terminal:

   CHARACTER_SET=(G0=JIS_ROMAN,G1=DECSPEC,G2=JIS_KATAKANA,-
                  G3=DEC_KANJI,GL=G0,GR=G3)

  It outputs "<ESC>(J<ESC>)0<ESC>*I<ESC>+"0<SI><ESC>|".

1.9  –  KATAKANA

  The keyword KATAKANA equates to the following command which might
  be used on a Japanese KATAKANA terminal:

         CHARACTER_SET=(G0=JIS_ROMAN,G1=JIS_KATAKANA,-
                        G2=JIS_KATAKANA,G3=DECSPEC,GL=G0,GR=G2)

  It outputs "<ESC>(J<ESC>)I<ESC>*I<ESC>+0<SI><ESC>}".

1.10  –  G0-G3_KEYWORDS

  The G0, G1, G2, G3 keywords take one of the following character-set
  keywords:

         Keyword         Character set description        Internal name
         ------          -------------------------        -------------
         ASCII           ASCII character set              B
         DECSPEC         DEC Special Graphic              0
         DECSUPGR        DEC Supplemental Graphic         %5
         DECTECH         DEC Technical                    >
         ISOLATIN1       ISO Latin-1 supplemental         A
         JIS_KATAKANA    JIS-Katakana (Japanese terminal) I
         JIS_ROMAN       JIS-Roman (Japanese terminal)    J
         KANJI           DEC Kanji (Japanese terminal)    "0 (or 1 or 3)
         KOREAN          Hanji    (Korean terminal)       4
         KS_ROMAN        KS Roman (Korean terminal)       %?
         LINEDRAWING     DEC Line Drawing                 0
         USERPREF        User-preferred supplemental      <

  Or you can specify your own G0, G1, G2, or G3 94-character set
  final sequence by using the STRING= keyword.

  G0=STRING="xx" outputs "<ESC>(xx".
  G1=STRING="xx" outputs "<ESC>)xx".
  G2=STRING="xx" outputs "<ESC>*xx".
  G3=STRING="xx" outputs "<ESC>+xx".

  E.g. CHARACTER_SET=(G0=STRING="B") would be the same as
       CHARACTER_SET=(G0=ASCII)

  and  CHARACTER_SET=(G0=DECSUPGR) would be the same as
       CHARACTER_SET=(G0=STRING="%5")

1.11  –  G1-G3_96_KEYWORDS

  The G1, G2, G3 keywords can also take one of the following
  additional 96-character-set keywords:

         BRITISH         British national                A
         CANADIAN        French Canadian national        9 (or Q)
         DANISH          Danish/Norwegian national       ` (or E or 6)
         DECTECH         DEC Technical                   >
         DUTCH           Dutch national                  4
         FINNISH         Finnish national                5 (or C)
         FRENCH          French national                 R
         GERMAN          German national                 K
         ITALIAN         Italian national                Y
         NORWEGIAN       Norwegian/Danish national       ` (or E or 6)
         PORTUGESE       Portugese national              %6
         SPANISH         Spanish national                Z
         SWEDISH         Swedish national                7 (or H)
         SWISS           Swiss national                  =

  Or you can specify your own G1, G2, or G3 96-character set final
  sequence by using the 96STRING= keyword.

  G1=96STRING="xx" outputs "<ESC>-xx".
  G2=96STRING="xx" outputs "<ESC>.xx".
  G3=96STRING="xx" outputs "<ESC>/xx".

  E.g.  CHARACTER_SET=(G1=96STRING=7) would be the same as
        CHARACTER_SET=(G1=SWEDISH)

  and   CHARACTER_SET=(G2=DECTECH) would be the same as
        CHARACTER_SET=(G2=96STRING=">")

1.12  –  GL

  The GL and GR keywords take one of the following keyword values:

     G0, G1, G2, G3.           E.g. CHARACTER_SET=(GL=G0,GR=G2).

  GL=G0 outputs "<SI>".
  GL=G1 outputs "<SO>".
  GL=G2 outputs "<ESC>n".
  GL=G3 outputs "<ESC>o".

1.13  –  GR

  The GL and GR keywords take one of the following keyword values:

     G0, G1, G2, G3.           E.g. CHARACTER_SET=(GL=G0,GR=G2).

  GR=G1 outputs "<ESC>~".
  GR=G2 outputs "<ESC>}".
  GR=G3 outputs "<ESC>|".

1.14  –  CLEAR

  Outputs "<ESC>[H<ESC>[J"

1.15  –  EIGHT_BIT

  Outputs "<ESC> G"

1.16  –  INSERT

  Outputs "<ESC>[4h"

1.17  –  NOINSERT

  Outputs "<ESC>[4l"

1.18  –  INVERSE

  Outputs "<ESC>[?5h"

1.19  –  NOINVERSE

  Outputs "<ESC>[?5l"

1.20  –  NATIONAL

  Outputs "<CSI>?42h"

1.21  –  NONATIONAL

  Outputs "<CSI>?42l"

1.22  –  NONE

   The keyword NONE is used to specify that there is no /INIT or
   /FINISH sequence.

1.23  –  NUMERIC

  Outputs "<ESC>>"

1.24  –  ORIGIN

  Outputs "<ESC>[?6h"

1.25  –  NOORIGIN

  Outputs "<ESC>[?6l"

1.26  –  PREFIX="string"

  PREFIX takes a string parameter and outputs it before
  any other sequences.

  Parameter is a user specified string in "hot-key" format.

  E.g. /INIT=(PREFIX="<ESC>[2J")

1.27  –  PREF_DEC

  Outputs "<DCS>0!u%5<ST>"

1.28  –  PREF_ISO

  Outputs "<DCS>1!uA<ST>"

1.29  –  REGIS

  Outputs "<ESC>Pp"

1.30  –  SCROLL=(top row,bottom row)

  SCROLL takes two numeric parameters, top_row and bottom_row.

  These are substituted into the "$[t;br" escape sequence exactly as
  they are given on the command line.

  E.g. /INIT=(SCROLL=(5,20)) generates "<ESC>[5;20r".

1.31  –  NOSCROLL

  Outputs "<ESC>[r"

1.32  –  SEVEN_BIT

  Outputs "<ESC> F"

1.33  –  STRING="string"

  The string specified with /INIT=(STRING="string") or
  /FINISH=(STRING="string") is output after all the
  other sequences specified have been output, except for
  the REGIS, TEXTRONIX and VT52 sequences.

  The parameter is a user specified string in "hot-key" format.

  E.g. /INIT=(STRING="<ESC>[2J")

1.34  –  STATUS_INDICATOR

  Outputs "<ESC>[1$~"

1.35  –  STATUS_LINE

  Outputs "<ESC>[2$~"

1.36  –  NOSTATUS_LINE

  Outputs "<ESC>[0$~"

1.37  –  STATUS START[="string"]

  Outputs "<ESC>[1$}" then the optional string.

  This may be used to put text on the status line.

  It should be followed by a STATUS_END to return the cursor to the
  main display.

1.38  –  STATUS_END

  Outputs "<ESC>[0$}"

1.39  –  SUFFIX="string"

  The string specified with /INIT=(SUFFIX="string") or
  /FINISH=(SUFFIX="string") is output after all the
  other sequences specified have been output.

  The parameter is a user specified string in "hot-key" format.

  E.g. /INIT=(SUFFIX="<ESC>[2J")

1.40  –  TEKTRONIX

  Outputs "<ESC>[?38h"

1.41  –  NOTEKTRONIX

  Outputs "<ESC>[?38l"

1.42  –  TEKTRONIX2

  Outputs "<ESC>%!0"

1.43  –  NOTEKTRONIX2

  Outputs "<ESC>%!2"

1.44  –  VT100

  Outputs "<ESC><"

1.45  –  VT200

  Outputs "<ESC><<ESC>["62;1p"

1.46  –  VT300

  Outputs "<ESC><<ESC>["63;1p"

1.47  –  VT400

  Outputs "<ESC><<ESC>["64;1p"

1.48  –  VT52

  Outputs "<ESC>[?2l<ESC>\"

2  –  Sequence Ordering

  The sequences are output as follows and in the following order
  regardless of the sequence of the keywords on the command line:

  PREFIX="string"                user specified string in "hot-key"
                                 format.
  SCROLL=(5,20)                  <ESC>[5;20r
  VT100                          <ESC><
  VT200                          <ESC><<ESC>["62;1p
  VT300                          <ESC><<ESC>["63;1p
  VT400                          <ESC><<ESC>["64;1p
  SEVEN_BIT                      <ESC> F
  EIGHT_BIT                      <ESC> G
  STATUS_INDICATOR               <ESC>[1$~
  STATUS_LINE                    <ESC>[2$~
  NOSTATUS_LINE                  <ESC>[0$~
  STATUS_START                   <ESC>[1$}
  STATUS_END                     <ESC>[0$}
  PREF_DEC                       <DCS>0!u%5<ST>
  PREF_ISO                       <DCS>1!uA<ST>
  CHARACTER_SET=MULTINATIONAL    <ESC>(B<ESC>)B<ESC>*%5<ESC>+%5<SI><ESC>}
  CHARACTER_SET=STANDARD         <ESC>(B<ESC>)B<ESC>*%5<ESC>+%5<SI><ESC>}
  CHARACTER_SET=KATAKANA         <ESC>(J<ESC>)I<ESC>*I<ESC>+0<SI><ESC>}
  CHARACTER_SET=KANJI            <ESC>(J<ESC>)0<ESC>*I<ESC>+"0<SI><ESC>|
  CHARACTER_SET=G0=STRING="xx"   <ESC>(xx
  CHARACTER_SET=G1=STRING="xx"   <ESC>)xx
  CHARACTER_SET=G2=STRING="xx"   <ESC>*xx
  CHARACTER_SET=G3=STRING="xx"   <ESC>+xx
  CHARACTER_SET=G1=96STRING="xx" <ESC>-xx
  CHARACTER_SET=G2=96STRING="xx" <ESC>.xx
  CHARACTER_SET=G3=96STRING="xx" <ESC>/xx
  CHARACTER_SET=G0=94_charset_kw <ESC>(<94-charset-final>
  CHARACTER_SET=G1=94_charset_kw <ESC>)<94-charset-final>
  CHARACTER_SET=G2=94_charset_kw <ESC>*<94-charset-final>
  CHARACTER_SET=G3=94_charset_kw <ESC>+<94-charset-final>
  NATIONAL                       <CSI>?42h
  NONATIONAL                     <CSI>?42l
  CHARACTER_SET=G1=96_charset_kw <ESC>-<96-charset-final>
  CHARACTER_SET=G2=96_charset_kw <ESC>.<96-charset-final>
  CHARACTER_SET=G3=96_charset_kw <ESC>/<96-charset-final>
  CHARACTER_SET=GL=G0            <SI>
  CHARACTER_SET=GL=G1            <SO>
  CHARACTER_SET=GL=G2            <ESC>n
  CHARACTER_SET=GL=G3            <ESC>o
  CHARACTER_SET=GR=G1            <ESC>~
  CHARACTER_SET=GR=G2            <ESC>}
  CHARACTER_SET=GR=G3            <ESC>|
  APPLICATION                    <ESC>=
  NUMERIC                        <ESC>>
  INSERT                         <ESC>[4h
  NOINSERT                       <ESC>[4l
  132COLUMN                      <ESC>[?3h
  80COLUMN                       <ESC>[?3l
  INVERSE                        <ESC>[?5h
  NOINVERSE                      <ESC>[?5l
  ORIGIN                         <ESC>[?6h
  NOORIGIN                       <ESC>[?6l
  NOSCROLL                       <ESC>[r
  CLEAR                          <ESC>[H<ESC>[J
  STRING="string"                user specified string in "hot-key"
                                 format.
  REGIS                          <ESC>Pp
  TEKTRONIX                      <ESC>[?38h
  NOTEKTRONIX                    <ESC>[?38l
  TEKTRONIX2                     <ESC>%!0
  NOTEKTRONIX2                   <ESC>%!2
  VT52                           <ESC>[?2l<ESC>\
  SUFFIX="string"                user specified string in "hot-key"
                                 format.

3  –  Default

  The following sequences are sent to the watcher's terminal to reset
  its state before the /FINISH_SEQUENCE (if any) is output:

     VT200/300/400:
                 1       ESC \           String terminator for DCS.
                 2       ESC <           Switch into ANSI mode.
                 3       ESC [ ! p       Reset everything.
                 4       ESC [ 1 3 2 H   Go to bottom of screen.
                 5a      ESC >           Turn off application keypad.
                 5b      ESC =           Turn on application keypad.
                 6a      ESC [ ? 3 l     Switch to 80 column mode.
                 6b      ESC [ ? 3 h     Switch to 132 column mode.
     VT100:
                 1       ESC \           String terminator for DCS.
                 2       ESC <           Switch into ANSI mode.
                 3       ESC ( B         Set G0 to US ASCII.
                 4       SI              Switch into G0.
                 5       ESC [ r         Reset scrolling region.
                 6       ESC [ m         Turn off graphic rendition.
                 7       ESC [ 1 3 2 H   Go to bottom of screen.
                 8a      ESC >           Turn off application keypad.
                 8b      ESC =           Turn on application keypad.
                 9a      ESC [ ? 3 l     Switch to 80 column mode.
                 9b      ESC [ ? 3 h     Switch to 132 column mode.

     VT52 mode:          As above based on type of terminal (VT100 vs
                         VT200/300/400) plus the following:

                 ESC [ ? 2 l     Switch from ANSI mode into VT52 mode

     Where there is an (a) or (b) choice, just the one which corresponds
     to the terminal driver setting when Peek was started will be output.
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