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decus/20-0028/sort.sno
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* BUBBLE SORT PROGRAM SIMILIAR TO THE ONE ON PAGE 111
* OF THE REFERENCE MANUAL. IT SORTS A TWO DIMENSIONAL ARRAY.
* THE ARGUMENTS ARE
* ARRAY NAME
*
* L.P. WADE 3-20-70 DEC
*
SORTPAT = BREAK(',') . DIM1 ',' REM . DIM2
DEFINE('SORT(NAME)I,J')
DEFINE('SWITCH(NAME,DIM1,DIM2,VAR)I,TEMP')
DEFINE('BUBBLE(NAME,DIM1,DIM2,VAR)') :(DEFEND)
SORT PROTOTYPE(NAME) SORTPAT :S(SORT1)
OUTPUT = 'SORT CANNOT HANDLE THE ARRAY NAMED ' I
OUTPUT = 'ILLEGAL PROTOTYPE = ' PROTOTYPE(NAME)
. :(FRETURN)
SORT1 I = LE(I,DIM1) I + 1 :F(RETURN)
IDENT(NAME<I + 1,1>) :S(RETURN)
LGT(NAME<I,1>,NAME<I + 1,1>) :F(SORT1)
SWITCH(NAME,DIM1,DIM2,I)
BUBBLE(NAME,DIM1,DIM2,I) :(SORT1)
SWITCH I = LE(I,DIM2) I + 1 :F(RETURN)
TEMP = NAME<VAR,I>
NAME<VAR,I> = NAME<VAR + 1,I>
NAME<VAR + 1,I> = TEMP :(SWITCH)
BUBBLE VAR = GT(VAR,1) VAR - 1 :F(RETURN)
LGT(NAME<VAR,1>,NAME<VAR + 1,1>) :F(RETURN)
SWITCH(NAME,DIM1,DIM2,VAR) :(BUBBLE)
DEFEND
TAB = ' '
DEFINE('PRINTARRAY(NAME)TEMP,I,J') :(PRINTEND)
PRINTARRAY PROTOTYPE(NAME) SORTPAT :S(PRINT1)
OUTPUT = 'PRINTARRAY CANNOT HANDLE ARRAY '
OUTPUT = 'ILLEGAL PROTOTYPE = ' PROTOTYPE(NAME)
:(FRETURN)
PRINT1 I = NULL
TEMP = NULL
J = LE(J,DIM1) J + 1 :F(RETURN)
PRINT2 I = LE(I,DIM2) I + 1 :F(PRINT3)
EQ(I,1) IDENT(NAME<J,I>) :S(PRINT1)
TEMP = TEMP TAB NAME<J,I> :(PRINT2)
PRINT3 OUTPUT = TEMP :(PRINT1)
PRINTEND
*