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Frozen Fish 1: Amiga
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anima.inc
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1991-06-08
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64 lines
'------------------ USER-DEFINED FUNCTIONS
DEF FNLTRIM$(X$)
WHILE LEFT$(X$,1)=SPACE$(1)
X$=MID$(X$,2)
WEND
FNLTRIM$=X$
END DEF
DEF FNRTRIM$(X$)
WHILE RIGHT$(X$,1)=SPACE$(1)
X$=LEFT$(X$,LEN(X$)-1)
WEND
FNRTRIM$=X$
END DEF
DEF FNTRIM$(X$)=FNLTRIM$(FNRTRIM$(X$))
DEF FNWORD$(X$)
ASPACE=INSTR(X$,SPACE$(1))
IF ASPACE > 0 THEN
FNWORD$=LEFT$(X$,ASPACE-1)
ELSE
FNWORD$=X$
END IF
END DEF
' --- FORMAT A NUMERIC STRING
DEF FNFMT$ (A#)
FORM$="-####.#"
STATIC SIGN, S$, P, A$, DEC, W$, F$, WF$, FF$, PAD$, ADD$
SIGN = SGN(A#)
A# = ABS(A#)
' --- SEPARATE WHOLE AND FRACTIONAL PARTS OF NUMBER
W$ = MID$(STR$(INT(A#)), 2)
IF W$ = "" THEN W$ = "0"
S$ = STR$(1 + A#)
P = INSTR(S$, ".")
IF P = 0 THEN
F$ = ""
ELSE F$ = MID$(S$, P + 1)
END IF
' --- SEPARATE WHOLE AND FRACTION FORMAT STRINGS
DEC = INSTR(FORM$, ".")
IF DEC = 0 THEN
WF$ = FORM$: FF$ = ""
ELSE WF$ = LEFT$(FORM$, DEC - 1)
FF$ = MID$(FORM$, DEC + 1)
END IF
ADD$ = "": PAD$ = " "
' --- ADD SIGN CHARACTER
IF LEFT$(WF$, 1) = "-" THEN
WF$ = MID$(WF$, 2)
IF SIGN = -1 THEN
ADD$ = ADD$ + "-"
ELSE ADD$ = ADD$ + " "
END IF
END IF
' --- HANDLE NUMERIC OVERFLOW AND UNDERFLOW
IF LEN(W$) > LEN(WF$) THEN W$ = "%" + RIGHT$(W$, LEN(WF$) - 1)
IF LEN(F$) > LEN(FF$) THEN F$ = LEFT$(F$, LEN(FF$))
' --- FORMAT THE NUMBER STRING
IF DEC > 0 THEN W$ = W$ + "." + F$ + STRING$(LEN(FF$) - LEN(F$), "0")
FNFMT$ = ADD$ + W$
END DEF