Towards GPL

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

diff --git a/recctrl/sgmlread.c b/recctrl/sgmlread.c
index 3f0566d..c22cd51 100644 (file)
--- a/recctrl/sgmlread.c
+++ b/recctrl/sgmlread.c
@@ -1,23 +1,109 @@
-/*
- * Copyright (C) 1994-1996, Index Data I/S 
- * All rights reserved.
- * Sebastian Hammer, Adam Dickmeiss
- *
- * $Log: sgmlread.c,v $
- * Revision 1.2  1997-04-30 08:56:08  quinn
- * null
- *
- * Revision 1.1  1996/10/11  10:57:32  adam
- * New module recctrl. Used to manage records (extract/retrieval).
- *
- */
-#include <stdio.h>
+/* $Id: sgmlread.c,v 1.11 2002-08-02 19:26:56 adam Exp $
+   Copyright (C) 1995,1996,1997,1998,1999,2000,2001,2002
+   Index Data Aps
+
+This file is part of the Zebra server.
+
+Zebra is free software; you can redistribute it and/or modify it under
+the terms of the GNU General Public License as published by the Free
+Software Foundation; either version 2, or (at your option) any later
+version.
+
+Zebra is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or
+FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+for more details.
+
+You should have received a copy of the GNU General Public License
+along with Zebra; see the file LICENSE.zebra.  If not, write to the
+Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA
+02111-1307, USA.
+*/
+
+
 #include <assert.h>
-#include <string.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->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;
+