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PDL principles and procedures
Using LCDS Print Description Language
1-9
Table 1-2. Types of string constants
Constant
Definition
Example
Hexadecimal Normally
used as string constants,
but they may also be used as
value constants. Each pair of
hexadecimal characters results in
one byte. A hexadecimal constant
must immediately be preceded by
the characters X apostrophe (X’),
then followed by another
apostrophe, to indicate to the PDL
compiler that the expression that
follows is in hexadecimal.
IDEN PREFIX=X'C1C2C3C4';
ASCII
Used as string constants. Each
character results in one byte. The
constants must be preceded by
the characters A apostrophe (A’)
and followed by an apostrophe
character.
IDEN PREFIX=A'ABC!44EF'
is equivalent to
IDEN PREFIX=X'414243444546'
The ASCII string type allows
hexadecimal representation of
characters to be embedded in a
string. This is done by preceding
the hexadecimal representation of
the character with an
!
character.
The three character sequence
required for the hexadecimal
representation of a character
results in one byte.
Two successive
!
characters (
!!
)
are necessary to represent one
actual
!
character when printing.
The two character sequence (
!!
)
results in one byte.
Содержание Docuprint 75
Страница 16: ...Table of contents xvi Using LCDS Print Description Language ...
Страница 26: ...Introduction xxvi Using LCDS Print Description Language ...
Страница 108: ...PDL principles and procedures 1 82 Using LCDS Print Description Language ...
Страница 151: ...Specifying input parameters Using LCDS Print Description Language 2 43 Figure 2 3 Record format types ...
Страница 227: ...Using logical processing Using LCDS Print Description Language 3 47 Figure 3 6 Effects of RPAGE SIDE parameter ...
Страница 228: ...Using logical processing 3 48 Using LCDS Print Description Language Figure 3 7 Effects of RPAGE WHEN parameter ...
Страница 354: ...Specifying print format parameters 4 114 Using LCDS Print Description Language ...
Страница 436: ...Using PDL commands for graphics 6 8 Using LCDS Print Description Language ...
Страница 452: ...PDL command and DJDE summary A 16 Using LCDS Print Description Language ...
Страница 470: ...Character code assignments C 8 Using LCDS Print Description Language ...
Страница 476: ...Offline specifications D 6 Using LCDS Print Description Language Figure D 2 LPS tape format diagram ...
Страница 478: ...Offline specifications D 8 Using LCDS Print Description Language ...
Страница 506: ...INDEX INDEX 12 Using LCDS Print Description Language ...