Initial version of ecoPCR

git-svn-id: https://www.grenoble.prabi.fr/svn/LECASofts/ecoPCR/trunk@5 60f365c0-8329-0410-b2a4-ec073aeeaa1d

src/libecoPCR/ecorank.c

@@ -0,0 +1,52 @@
+#include "ecoPCR.h"
+#include <string.h>
+#include <stdlib.h>
+
+static int compareRankLabel(const void *label1, const void *label2);
+
+ecorankidx_t     *read_rankidx(const char *filename)
+{
+	int32_t      count;
+	FILE         *f;
+	ecorankidx_t *index;
+	int32_t      i;
+	int32_t      rs;
+	char         *buffer;
+	
+	f = open_ecorecorddb(filename,&count,1);
+	
+	index = (ecorankidx_t*) ECOMALLOC(sizeof(ecorankidx_t) + sizeof(char*) * (count-1),
+	                                  "Allocate rank index");
+	 
+	index->count=count;                                 
+	          
+	for (i=0; i < count; i++)
+		{
+			buffer = read_ecorecord(f,&rs);
+			index->label[i]=(char*) ECOMALLOC(rs+1,
+			                                  "Allocate rank label");
+			strncpy(index->label[i],buffer,rs);
+		}
+		
+	return index;
+}
+
+int32_t rank_index(const char* label,ecorankidx_t* ranks)
+{
+	char **rep;
+	
+	rep = bsearch(label,ranks->label,ranks->count,sizeof(char*),compareRankLabel);
+	
+	if (rep)
+		return rep-ranks->label;
+	else
+		ECOERROR(ECO_NOTFOUND_ERROR,"Rank label not found");
+		
+	return -1;
+}
+
+
+int compareRankLabel(const void *label1, const void *label2)
+{
+	return strcmp((const char*)label1,*(const char**)label2);
+}