Lexical Elements of the DEC Text Processing Utility Language 4.3 Character Sets

4.3.2 ISO Latin1 Character Set (ISO_LATIN1)

The ISO Latin1 Character Set characters from 128 to 255 are extended control characters and Latin1 supplemental multinational characters. Table 4–3 shows the groups into which you can categorize characters.

Table 4–3 Categories for ISO Latin1 Characters

128-159 Extended control characters

160-191 Latin1 supplemental graphics characters such as the nonbreaking space and the currency sign

192-255 The Latin1 supplemental uppercase and lowercase letters such as the uppercase and lowercase thorn

For a complete list of the ISO Latin1 Character Set, see the OpenVMS documentation.

4.3.3 General Character Sets

If you specify the GENERAL keyword with the /CHARACTER_SET qualifier or the -C option, DECTPU is unable to set a character set for 8-bit characters. The character set used and how DECTPU displays 8-bit characters are the same as before you started DECTPU. For this reason, the characters from 128 to 255 in the General Character Sets are not specific to any character set.

4.3.4 Entering Control Characters

There are two ways to enter control characters in DECTPU:

•Use the ASCII built-in procedure with the decimal value of the control character that you want to enter. The following statement causes the escape character to be entered in the current buffer:

COPY_TEXT (ASCII (27));

•Use the special functions provided by EVE to enter control characters:

–EVE provides a QUOTE command that is bound to Ctrl/V to insert control characters in a buffer. For example, to use the quote command to insert an escape character in a buffer, do the following:

1.Press Ctrl/V.

2.Press the ESCAPE key (on VT100-series terminals) or Ctrl/[.

For example:

Ctrl/V ESC

–EVE’s EDT-like keypad setting provides a SPECINS key sequence to insert control characters in a buffer. Use the SPECINS key to enter a control character as follows:

1.Press the GOLD key.

2.Enter the ASCII value of the special character that you want to insert in the buffer; in this case 27 (the escape character). (Use the keys on the keyboard, not the ones on the keypad.)

3.Press the GOLD key again.

4.Press the SPECINS key on the EDT keypad.

Lexical Elements of the DEC Text Processing Utility Language 4–3

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Compaq AA-PWCBD-TE manual General Character Sets, Entering Control Characters, Categories for ISO Latin1 Characters
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