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GeoBASIC User Manual 8 — Typical GeoBASIC Programming
TPS1100-Version 2.10 8-11
Mostly constants are globally defined. For local constants an additional prefix
'loc'
might be useful.
User defined types begin with an upper case character. Use the postfix '
_TYPE
',
'_Type'
or '
Type
' (according to the naming convention used for the type name
itself) appended to the type name to denote that it is a type structure. Alternatively,
you can use a prefix '
T
'. (For types these conventions are useful since GeoBASIC
is not case sensitive. Hence, for example, if there is a type
Date
no variable can
be named
date
. If the type has the name
TDate
or
Date_Type
or
DateType
,
there can.) As for local constants, local types might be prefixed with
'loc'
.
8.3.3 Procedures
A procedure name begins with an upper case letter and succinctly describes the
action that is performed. Variables that denote parameters passed to a function or
subroutine (in the parentheses after the function/subroutine name) should be well
documented, also indicating whether they act as
input , output , or input and output
parameters.
8.3.4 Keywords
GeoBASIC keywords are all in upper case letters. For example,
DIM
,
FOR
,
LOOP
,
FUNCTION
, etc.
8.3.5 Labels
For error labels (ON ERROR GOTO) we use the function/subprocedure name with
the qualifier
'_Err' appended.