Improved installation. Updated for inclusion of YAZ header files.

[idzebra-moved-to-github.git] / recctrl / sgmlread.c

diff --git a/recctrl/sgmlread.c b/recctrl/sgmlread.c
index 0e7513f..1bcce37 100644 (file)
--- a/recctrl/sgmlread.c
+++ b/recctrl/sgmlread.c
@@ -1,10 +1,28 @@
 /*
- * Copyright (C) 1994-1996, Index Data I/S 
+ * Copyright (C) 1994-1999, Index Data
  * All rights reserved.
  * Sebastian Hammer, Adam Dickmeiss
  *
  * $Log: sgmlread.c,v $
- * Revision 1.4  1997-09-17 12:19:22  adam
+ * Revision 1.10  1999-11-30 13:48:04  adam
+ * Improved installation. Updated for inclusion of YAZ header files.
+ *
+ * Revision 1.9  1999/07/14 10:56:16  adam
+ * Filter handles multiple records in one file.
+ *
+ * Revision 1.8  1999/06/25 13:47:25  adam
+ * Minor change that prevents MSVC warning.
+ *
+ * Revision 1.7  1999/05/21 12:00:17  adam
+ * Better diagnostics for extraction process.
+ *
+ * Revision 1.6  1999/05/20 12:57:18  adam
+ * Implemented TCL filter. Updated recctrl system.
+ *
+ * Revision 1.5  1999/02/02 14:51:31  adam
+ * Updated WIN32 code specific sections. Changed header.
+ *
+ * Revision 1.4  1997/09/17 12:19:22  adam
  * Zebra version corresponds to YAZ version 1.4.
  * Changed Zebra server so that it doesn't depend on global common_resource.
  *
@@ -19,11 +37,89 @@
  * New module recctrl. Used to manage records (extract/retrieval).
  *
  */
-#include <log.h>
+#include <assert.h>
+#include <yaz/log.h>
 
 #include "grsread.h"
 
-data1_node *grs_read_sgml (struct grs_read_info *p)
+struct sgml_getc_info {
+    char *buf;
+    int buf_size;
+    int size;
+    int off;
+    int moffset;
+    void *fh;
+    int (*readf)(void *, char *, size_t);
+    WRBUF wrbuf;
+};
+
+int sgml_getc (void *clientData)
+{
+    struct sgml_getc_info *p = (struct sgml_getc_info *) clientData;
+    int res;
+    
+    if (p->off < p->size)
+       return p->buf[(p->off)++];
+    if (p->size < p->buf_size)
+       return 0;
+    p->moffset += p->off;
+    p->off = 0;
+    p->size = 0;
+    res = (*p->readf)(p->fh, p->buf, p->buf_size);
+    if (res > 0)
+    {
+       p->size += res;
+       return p->buf[(p->off)++];
+    }
+    return 0;
+}
+
+static data1_node *grs_read_sgml (struct grs_read_info *p)
 {
-    return data1_read_record (p->dh, p->readf, p->fh, p->mem);
+    struct sgml_getc_info *sgi = (struct sgml_getc_info *) p->clientData;
+    data1_node *node;
+    int res;
+    
+    sgi->moffset = p->offset;
+    sgi->fh = p->fh;
+    sgi->readf = p->readf;
+    sgi->off = 0;
+    sgi->size = 0;
+    res = (*sgi->readf)(sgi->fh, sgi->buf, sgi->buf_size);
+    if (res > 0)
+       sgi->size += res;
+    else
+       return 0;
+    node = data1_read_nodex (p->dh, p->mem, sgml_getc, sgi, sgi->wrbuf);
+    if (node && p->endf)
+       (*p->endf)(sgi->fh, sgi->moffset + sgi->off);
+    return node;
 }
+
+static void *grs_init_sgml(void)
+{
+    struct sgml_getc_info *p = (struct sgml_getc_info *) xmalloc (sizeof(*p));
+    p->buf_size = 512;
+    p->buf = xmalloc (p->buf_size);
+    p->wrbuf = wrbuf_alloc();
+    return p;
+}
+
+static void grs_destroy_sgml(void *clientData)
+{
+    struct sgml_getc_info *p = (struct sgml_getc_info *) clientData;
+
+    wrbuf_free(p->wrbuf, 1);
+    xfree (p->buf);
+    xfree (p);
+}
+
+static struct recTypeGrs sgml_type = {
+    "sgml",
+    grs_init_sgml,
+    grs_destroy_sgml,
+    grs_read_sgml
+};
+
+RecTypeGrs recTypeGrs_sgml = &sgml_type;
+