Using ChemFinder - CambridgeSoft

$SYSTEM_DIR
NOTE: To view a complete list of variables, click
Help on the Enter Cal Command dialog box.
ChemFinder provides several variables to allow you
to retrieve information about the current
ChemFinder environment. They cannot be set
directly, but are modified as a consequence of other
commands.
For example, the menu command:
Record Next
increments the current RECNO by 1.
The table below shows examples of Environment
Variables:
Command Action
SETVAL 1
$RECNO
SETVAL V1
$NUM_RECS
SETVAL V1
$DTBA_NAME_
LONG
SETVAL V1
$FORM_NAME_
SHORT
SETVAL V1
$SYSTEM_DIR
V1 now equals the number
of the current record
V1 now equals total
number of records in the
current list
V1 now equals, for
example
“c:\chemfinder\mydb.mdb
”
V1 now equals, for
example “mydb”
V1 now equals, for
example,
“c:\chemfndr\system”
Script-Only Commands
*text
:label
label:
GOTO label
IF v1 op v2 stmt
LOOP [count]
ENDLOOP
PAUSE [dseconds]
EXIT
INTERACTIVE ON / OFF
STEP ON / OFF
Script-only commands are useful only in script files,
not interactive CAL.
An asterisk (*) is used to mark a line as a comment
and not a command that should be executed.
Labels and GOTO give a mechanism for jumping
backwards in a script. A label may be any text string
starting or ending with a colon; it must appear prior
to any GOTO that references it.
IF is a standard conditional statement. It compares
two values according to an operator, and then
executes its final statement if the result is true. Valid
operators are:
= < > < >
LOOP begins a section of code that will execute
repeatedly, until ENDLOOP is reached. By default,
the number of times the code executes is equal to the
number of records in the current list, but you can
provide a specific count in the LOOP statement.
PAUSE temporarily stops the script from executing
for a specified number of tenths of a second. If no
number is given, the duration of the pause is 2
seconds.
EXIT ends the script immediately.
INTERACTIVE turns interactive mode on or off.
ChemFinder 8 • A-21
Script-Only Commands