import

lib/sj3core/srchidx.c

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+/*
+ * Copyright (c) 1991-1994  Sony Corporation
+ * 
+ * Permission is hereby granted, free of charge, to any person obtaining
+ * a copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sublicense, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ * 
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ * 
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+ * IN NO EVENT SHALL SONY CORPORATION BE LIABLE FOR ANY CLAIM,
+ * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+ * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR
+ * THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ * 
+ * Except as contained in this notice, the name of Sony Corporation
+ * shall not be used in advertising or otherwise to promote the sale, use
+ * or other dealings in this Software without prior written authorization
+ * from Sony Corporation.
+ *
+ */
+
+/*
+ * $SonyRCSfile: srchidx.c,v $  
+ * $SonyRevision: 1.1 $ 
+ * $SonyDate: 1994/06/03 08:02:29 $
+ */
+
+#include "sj_kcnv.h"
+
+#include "sj_kanakan.h"
+
+TypeDicSeg
+srchidx(TypeDicSeg low, int len)
+{
+	TypeDicSeg	high;
+	TypeDicSeg	mid;
+	int		cmp;
+	u_char		*target;
+
+	if ((high = curdict->segunit - 1) < 1) return 0;
+
+	if (low == (TypeDicSeg)-1) low = 0;
+
+	while (low <= high) {
+
+		mid = (low + high) >> 1;
+
+		target = get_idxptr(mid);
+
+		cmp = istrcmp(cnvstart, target, len, sstrlen(target));
+
+		if (cmp == OVER) {
+			high = mid - 1;
+		}
+
+		else if(cmp != MATCH){
+			low = mid + 1;
+		}
+
+		else {
+			return mid;
+		}
+	}
+
+	return (cmp == OVER && mid != DICSEGBASE) ? mid - 1 : mid;
+}
+