X-Git-Url: http://git.indexdata.com/?a=blobdiff_plain;f=util%2Fmarcdisp.c;h=03bb37c1ff60b94d31124541135e7c737b4f794e;hb=c34d71d35aceed27cf7e30e6b329a235b48b9ccd;hp=88f400e66297f4b25b0c0536dbbfd5c6bdb70ec9;hpb=657fb99115b87a5244e9a33bbe4ca3d9d18849c4;p=yaz-moved-to-github.git

diff --git a/util/marcdisp.c b/util/marcdisp.c
index 88f400e..03bb37c 100644
--- a/util/marcdisp.c
+++ b/util/marcdisp.c
@@ -1,43 +1,23 @@
 /*
- * Copyright (c) 1995, Index Data
+ * Copyright (c) 1995-2002, Index Data
  * See the file LICENSE for details.
- * Sebastian Hammer, Adam Dickmeiss
- *
- * $Log: marcdisp.c,v $
- * Revision 1.3  1995-09-27 15:03:03  quinn
- * Modified function heads & prototypes.
- *
- * Revision 1.2  1995/05/16  08:51:12  quinn
- * License, documentation, and memory fixes
- *
- * Revision 1.1  1995/04/10  10:28:46  quinn
- * Added copy of CCL and MARC display
  *
+ * $Id: marcdisp.c,v 1.17 2002-02-01 14:50:29 adam Exp $
  */
 
+#if HAVE_CONFIG_H
+#include <config.h>
+#endif
+
 #include <stdio.h>
 #include <string.h>
 #include <ctype.h>
-#include <marcdisp.h>
-
-#define ISO2709_RS 035
-#define ISO2709_FS 036
-#define ISO2709_IDFS 037
-
-int atoi_n (const char *buf, int len)
-{
-    int val = 0;
-
-    while (--len >= 0)
-    {
-        if (isdigit (*buf))
-            val = val*10 + (*buf - '0');
-	buf++;
-    }
-    return val;
-}
+#include <yaz/marcdisp.h>
+#include <yaz/wrbuf.h>
+#include <yaz/yaz-util.h>
 
-int MDF marc_display (const char *buf, FILE *outf)
+int marc_display_wrbuf (const char *buf, WRBUF wr, int debug,
+			int bsize)
 {
     int entry_p;
     int record_length;
@@ -50,17 +30,57 @@ int MDF marc_display (const char *buf, FILE *outf)
 
     record_length = atoi_n (buf, 5);
     if (record_length < 25)
+    {
+	if (debug)
+	{
+	    char str[40];
+	    
+	    sprintf (str, "Record length %d - aborting\n", record_length);
+	    wrbuf_puts (wr, str);
+	}
         return -1;
-    indicator_length = atoi_n (buf+10, 1);
-    identifier_length = atoi_n (buf+11, 1);
-    base_address = atoi_n (buf+12, 4);
+    }
+    /* ballout if bsize is known and record_length is than that */
+    if (bsize != -1 && record_length > bsize)
+	return -1;
+    if (isdigit(buf[10]))
+        indicator_length = atoi_n (buf+10, 1);
+    else
+        indicator_length = 2;
+    if (isdigit(buf[11]))
+	identifier_length = atoi_n (buf+11, 1);
+    else
+        identifier_length = 2;
+    base_address = atoi_n (buf+12, 5);
 
     length_data_entry = atoi_n (buf+20, 1);
     length_starting = atoi_n (buf+21, 1);
     length_implementation = atoi_n (buf+22, 1);
 
+    if (debug)
+    {
+	char str[40];
+	sprintf (str, "Record length         %5d\n", record_length);
+	wrbuf_puts (wr, str);
+	sprintf (str, "Indicator length      %5d\n", indicator_length);
+	wrbuf_puts (wr, str);
+	sprintf (str, "Identifier length     %5d\n", identifier_length);
+	wrbuf_puts (wr, str);
+	sprintf (str, "Base address          %5d\n", base_address);
+	wrbuf_puts (wr, str);
+	sprintf (str, "Length data entry     %5d\n", length_data_entry);
+	wrbuf_puts (wr, str);
+	sprintf (str, "Length starting       %5d\n", length_starting);
+	wrbuf_puts (wr, str);
+	sprintf (str, "Length implementation %5d\n", length_implementation);
+	wrbuf_puts (wr, str);
+    }
     for (entry_p = 24; buf[entry_p] != ISO2709_FS; )
+    {
         entry_p += 3+length_data_entry+length_starting;
+        if (entry_p >= record_length)
+            return -1;
+    }
     base_address = entry_p+1;
     for (entry_p = 24; buf[entry_p] != ISO2709_FS; )
     {
@@ -69,44 +89,94 @@ int MDF marc_display (const char *buf, FILE *outf)
 	int end_offset;
 	int i, j;
 	char tag[4];
+        int identifier_flag = 1;
 
         memcpy (tag, buf+entry_p, 3);
 	entry_p += 3;
         tag[3] = '\0';
-	fprintf (outf, "%s ", tag);
+	if (debug)
+	    wrbuf_puts (wr, "Tag: ");
+	wrbuf_puts (wr, tag);
+	wrbuf_puts (wr, " ");
 	data_length = atoi_n (buf+entry_p, length_data_entry);
 	entry_p += length_data_entry;
 	data_offset = atoi_n (buf+entry_p, length_starting);
 	entry_p += length_starting;
 	i = data_offset + base_address;
 	end_offset = i+data_length-1;
-        if (memcmp (tag, "00", 2) && indicator_length)
+        
+        if (indicator_length < 4 && indicator_length > 0)
+        {
+            if (buf[i + indicator_length] != ISO2709_IDFS)
+                identifier_flag = 0;
+        }
+        else if (!memcmp (tag, "00", 2))
+            identifier_flag = 0;
+        
+        if (identifier_flag)
 	{
-            for (j = 0; j<indicator_length; j++)
-		fprintf (outf, "%c", buf[i++]);
+            if (debug)
+                wrbuf_puts (wr, " Ind: ");
+            for (j = 0; j<indicator_length; j++, i++)
+		wrbuf_putc (wr, buf[i]);
 	}
+        if (debug)
+            wrbuf_puts (wr, " Fields: ");
 	while (buf[i] != ISO2709_RS && buf[i] != ISO2709_FS && i < end_offset)
 	{
-            if (memcmp (tag, "00", 2) && identifier_length)
+            if (identifier_flag)
 	    {
 	        i++;
-	        fprintf (outf, " $"); 
-                for (j = 1; j<identifier_length; j++)
-                    fprintf (outf, "%c", buf[i++]);
-		fprintf (outf, " ");
+		wrbuf_puts (wr, " $"); 
+                for (j = 1; j<identifier_length; j++, i++)
+		    wrbuf_putc (wr, buf[i]);
+		wrbuf_putc (wr, ' ');
 	        while (buf[i] != ISO2709_RS && buf[i] != ISO2709_IDFS &&
 	               buf[i] != ISO2709_FS && i < end_offset)
-	            fprintf (outf, "%c", buf[i++]);
+		{
+		    wrbuf_putc (wr, buf[i]);
+		    i++;
+		}
 	    }
 	    else
-	        fprintf (outf, "%c", buf[i++]);
+	    {
+		wrbuf_putc (wr, buf[i]);
+		i++;
+	    }
 	}
-	fprintf (outf, "\n");
+	wrbuf_putc (wr, '\n');
 	if (i < end_offset)
-	    fprintf (outf, "-- separator but not at end of field\n");
+	    wrbuf_puts (wr, "-- separator but not at end of field\n");
 	if (buf[i] != ISO2709_RS && buf[i] != ISO2709_FS)
-	    fprintf (outf, "-- no separator at end of field\n");
+	    wrbuf_puts (wr, "-- no separator at end of field\n");
     }
+    wrbuf_puts (wr, "");
+    return record_length;
+}
+
+int marc_display_exl (const char *buf, FILE *outf, int debug, int length)
+{
+    int record_length;
+
+    WRBUF wrbuf = wrbuf_alloc ();
+    record_length = marc_display_wrbuf (buf, wrbuf, debug, length);
+    if (!outf)
+	outf = stdout;
+    if (record_length > 0)
+	fwrite (wrbuf_buf(wrbuf), 1, wrbuf_len(wrbuf), outf);
+    wrbuf_free (wrbuf, 1);
     return record_length;
 }
 
+
+int marc_display_ex (const char *buf, FILE *outf, int debug)
+{
+    return marc_display_exl (buf, outf, debug, -1);
+}
+
+int marc_display (const char *buf, FILE *outf)
+{
+    return marc_display_ex (buf, outf, 0);
+}
+
+