1 files changed, 106 insertions, 0 deletions
diff --git a/pkg/utilities/nttools/tjoin/mkjoin.x b/pkg/utilities/nttools/tjoin/mkjoin.x
new file mode 100644
index 00000000..46667b3e
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+++ b/pkg/utilities/nttools/tjoin/mkjoin.x
@@ -0,0 +1,106 @@
+include	<tbset.h>
+
+# MKJOIN -- Create a table that will hold the join of two other tables
+#
+# B.Simon	04-Nov-87	First Code
+# B.Simon	31-Mar-92	Set output table type from input tables
+# B.Simon	14-Apr-99	Extracted code that creates table
+
+pointer procedure mkjoin (tol, tp1, cp1, tp2, cp2, outtable, otp,
+			  cpvec1, cpvec2, cpveco, ncol1, ncol2)
+
+double	tol		# i: Tolerance used in testing for equality
+pointer	tp1		# i: Table descriptor of first table
+pointer	cp1		# i: Descriptor of merged column in first table
+pointer	tp2		# i: Table descriptor of second table
+pointer	cp2		# i: Descriptor of merged column in second table
+char	outtable[ARB]	# i: Name of output table
+pointer	otp		# i: Table descriptor of output table
+pointer	cpvec1[ARB]	# i: Vector of columns in first input table
+pointer	cpvec2[ARB]	# i: Vector of columns in second input table
+pointer cpveco[ARB]	# i: Vector of columns in output table
+int	ncol1		# i: Number of columns in first input table
+int	ncol2		# u: Number of columns in second input table
+#--
+int	icol, jcol, numcol, type1, type2
+int	colnum[1], datatype[1], lendata[1], lenfmt[1]
+pointer	sp, icp, ocp, oldcol, newcol
+pointer	colname, colunits, colfmt
+
+int	tbpsta(), tbcnum(), tbcigi()
+pointer	tbtopn()
+
+begin
+	# Set up arrays in dynamic memory
+
+	call smark (sp)
+	call salloc (colname, SZ_COLNAME, TY_CHAR)
+	call salloc (colunits, SZ_COLUNITS, TY_CHAR)
+	call salloc (colfmt, SZ_COLFMT, TY_CHAR)
+
+	# Copy column pointers to old column array. If the tolerance is
+	# zero, the join column in the second table is not copied
+
+	numcol = ncol1 + ncol2
+
+	do icol = 1, ncol1
+	    cpvec1[icol] = tbcnum (tp1, icol)
+
+	do icol = 1, ncol2
+	    cpvec2[icol] = tbcnum (tp2, icol)
+
+	if (tol == 0.0 && cp1 != NULL && cp2 != NULL) {
+	    jcol = tbcigi (cp2, TBL_COL_NUMBER)
+	    ncol2 = ncol2 - 1
+	    numcol = numcol - 1
+	    do icol = jcol+1, ncol2
+		cpvec2[icol-1] = cpvec2[icol]
+	}
+
+	# Set type of output table
+
+ 	otp = tbtopn (outtable, NEW_FILE, NULL)
+
+	type1 = tbpsta (tp1, TBL_WHTYPE)
+	type2 = tbpsta (tp2, TBL_WHTYPE)
+	if (type1 == type2)
+	    call tbpset (otp, TBL_WHTYPE, type1)
+
+	# Copy column information from the input tables to the output table
+
+ 	do icol = 1, ncol1 {
+	    icp = cpvec1[icol]
+    	    call tbcinf (icp, colnum, Memc[colname], Memc[colunits],
+			 Memc[colfmt], datatype[1], lendata[1], lenfmt[1])
+
+	    call newcolnam (numcol, Memi[oldcol], icol,
+			    Memc[colname], SZ_COLNAME)
+
+	    call tbcdef (otp, ocp, Memc[colname], Memc[colunits], Memc[colfmt],
+			 datatype[1], lendata[1], 1)
+	    cpveco[icol] = ocp    
+	}
+
+ 	do icol = 1, ncol2 {
+	    icp = cpvec2[icol]
+    	    call tbcinf (icp, colnum, Memc[colname], Memc[colunits],
+			 Memc[colfmt], datatype[1], lendata[1], lenfmt[1])
+	    call newcolnam (numcol, Memi[oldcol], icol,
+			    Memc[colname], SZ_COLNAME)
+	    call tbcdef (otp, ocp, Memc[colname], Memc[colunits], Memc[colfmt],
+			 datatype[1], lendata[1], 1)
+	    cpveco[ncol1+icol] = ocp    
+	}
+
+	# Copy the table columns a row at a time
+
+	call tbtcre (otp)
+	call tbhcal (tp2, otp)
+	call tbhcal (tp1, otp)
+
+	call mfree (oldcol, TY_INT)
+	call mfree (newcol, TY_INT)
+	call sfree (sp)
+
+	return (otp)
+end