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Miscellaneous Code - Various Libraries and
Such
This section will contain various miscellaneous items of general use:
- Unescape.i - This file contains the unEscape() function which
renders incoming text harmless when used in OS-COMMAND or INPUT THROUGH
calls. Prevents users from inserting malicious commands in normal input
data.
[Download unescape.i]
- maths.i - Various mathematical functions, such as sine, cosine, tangent,
factorial, and such. Entirely 4gl, with no API calls.
[Download maths.i]
- latlon.i - Library for computing greatCircleDistance() between two points
on the globe, given latitude and longitude for each. Also can find a "box" around
a given point on the globe, through the use of the North(), South(), East(), and West()
functions. Useful for finding locations near another location, or within a given
radius of a location.
[Download latlon.i]
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