--- /dev/null
+/* $Id: rectext.c,v 1.1 2006-07-03 14:27:09 adam Exp $
+ Copyright (C) 1995-2005
+ 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 <stdio.h>
+#include <assert.h>
+#include <ctype.h>
+
+#include <idzebra/util.h>
+#include <idzebra/recctrl.h>
+
+struct filter_info {
+ char *sep;
+};
+
+static void *filter_init (Res res, RecType recType)
+{
+ struct filter_info *tinfo = (struct filter_info *) xmalloc(sizeof(*tinfo));
+ tinfo->sep = 0;
+ return tinfo;
+}
+
+static ZEBRA_RES filter_config(void *clientData, Res res, const char *args)
+{
+ struct filter_info *tinfo = (struct filter_info*) clientData;
+ xfree(tinfo->sep);
+ tinfo->sep = 0;
+ if (args && *args)
+ tinfo->sep = xstrdup(args);
+ return ZEBRA_OK;
+}
+
+static void filter_destroy (void *clientData)
+{
+ struct filter_info *tinfo = clientData;
+ xfree (tinfo->sep);
+ xfree (tinfo);
+}
+
+struct buf_info {
+ struct recExtractCtrl *p;
+ char *buf;
+ int offset;
+ int max;
+};
+
+static struct buf_info *buf_open (struct recExtractCtrl *p)
+{
+ struct buf_info *fi = (struct buf_info *) xmalloc (sizeof(*fi));
+
+ fi->p = p;
+ fi->buf = (char *) xmalloc (4096);
+ fi->offset = 1;
+ fi->max = 1;
+ return fi;
+}
+
+static int buf_getchar (struct filter_info *tinfo, struct buf_info *fi, char *dst)
+{
+ if (fi->offset >= fi->max)
+ {
+ if (fi->max <= 0)
+ return 0;
+ fi->max = (*fi->p->readf)(fi->p->fh, fi->buf, 4096);
+ fi->offset = 0;
+ if (fi->max <= 0)
+ return 0;
+ }
+ *dst = fi->buf[(fi->offset)++];
+ if (tinfo->sep && *dst == *tinfo->sep)
+ {
+ off_t off = (*fi->p->tellf)(fi->p->fh);
+ (*fi->p->endf)(fi->p->fh, off - (fi->max - fi->offset));
+ return 0;
+ }
+ return 1;
+}
+
+static void buf_close (struct buf_info *fi)
+{
+ xfree (fi->buf);
+ xfree (fi);
+}
+
+static int filter_extract (void *clientData, struct recExtractCtrl *p)
+{
+ struct filter_info *tinfo = clientData;
+ char w[512];
+ RecWord recWord;
+ int r;
+ struct buf_info *fi = buf_open (p);
+ int no_read = 0;
+
+#if 0
+ yaz_log(YLOG_LOG, "filter_extract off=%ld",
+ (long) (*fi->p->tellf)(fi->p->fh));
+#endif
+ (*p->init)(p, &recWord);
+ do
+ {
+ int i = 0;
+
+ r = buf_getchar (tinfo, fi, w);
+ while (r > 0 && i < 511 && w[i] != '\n' && w[i] != '\r')
+ {
+ i++;
+ r = buf_getchar (tinfo, fi, w + i);
+ }
+ if (i)
+ {
+ no_read += i;
+ recWord.term_buf = w;
+ recWord.term_len = i;
+ (*p->tokenAdd)(&recWord);
+ }
+ } while (r > 0);
+ buf_close (fi);
+ if (no_read == 0)
+ return RECCTRL_EXTRACT_EOF;
+ return RECCTRL_EXTRACT_OK;
+}
+
+static int filter_retrieve (void *clientData, struct recRetrieveCtrl *p)
+{
+ int r, filter_ptr = 0;
+ static char *filter_buf = NULL;
+ static int filter_size = 0;
+ int make_header = 1;
+ int make_body = 1;
+ const char *elementSetName = NULL;
+ int no_lines = 0;
+
+ if (p->comp && p->comp->which == Z_RecordComp_simple &&
+ p->comp->u.simple->which == Z_ElementSetNames_generic)
+ elementSetName = p->comp->u.simple->u.generic;
+
+ if (elementSetName)
+ {
+ /* don't make header for the R(aw) element set name */
+ if (!strcmp(elementSetName, "R"))
+ {
+ make_header = 0;
+ make_body = 1;
+ }
+ /* only make header for the H(eader) element set name */
+ else if (!strcmp(elementSetName, "H"))
+ {
+ make_header = 1;
+ make_body = 0;
+ }
+ }
+ while (1)
+ {
+ if (filter_ptr + 4096 >= filter_size)
+ {
+ char *nb;
+
+ filter_size = 2*filter_size + 8192;
+ nb = (char *) xmalloc (filter_size);
+ if (filter_buf)
+ {
+ memcpy (nb, filter_buf, filter_ptr);
+ xfree (filter_buf);
+ }
+ filter_buf = nb;
+ }
+ if (make_header && filter_ptr == 0)
+ {
+ if (p->score >= 0)
+ {
+ sprintf (filter_buf, "Rank: %d\n", p->score);
+ filter_ptr = strlen(filter_buf);
+ }
+ sprintf (filter_buf + filter_ptr, "Local Number: " ZINT_FORMAT "\n",
+ p->localno);
+ filter_ptr = strlen(filter_buf);
+ if (p->fname)
+ {
+ sprintf (filter_buf + filter_ptr, "Filename: %s\n", p->fname);
+ filter_ptr = strlen(filter_buf);
+ }
+ strcpy(filter_buf+filter_ptr++, "\n");
+ }
+ if (!make_body)
+ break;
+ r = (*p->readf)(p->fh, filter_buf + filter_ptr, 4096);
+ if (r <= 0)
+ break;
+ filter_ptr += r;
+ }
+ filter_buf[filter_ptr] = '\0';
+ if (elementSetName)
+ {
+ if (!strcmp (elementSetName, "B"))
+ no_lines = 4;
+ if (!strcmp (elementSetName, "M"))
+ no_lines = 20;
+ }
+ if (no_lines)
+ {
+ char *p = filter_buf;
+ int i = 0;
+
+ while (++i <= no_lines && (p = strchr (p, '\n')))
+ p++;
+ if (p)
+ {
+ p[1] = '\0';
+ filter_ptr = p-filter_buf;
+ }
+ }
+ p->output_format = VAL_SUTRS;
+ p->rec_buf = filter_buf;
+ p->rec_len = filter_ptr;
+ return 0;
+}
+
+static struct recType filter_type = {
+ 0,
+ "text",
+ filter_init,
+ filter_config,
+ filter_destroy,
+ filter_extract,
+ filter_retrieve
+};
+
+RecType
+#ifdef IDZEBRA_STATIC_TEXT
+idzebra_filter_text
+#else
+idzebra_filter
+#endif
+
+[] = {
+ &filter_type,
+ 0,
+};
+/*
+ * Local variables:
+ * c-basic-offset: 4
+ * indent-tabs-mode: nil
+ * End:
+ * vim: shiftwidth=4 tabstop=8 expandtab
+ */
+
projects / idzebra-moved-to-github.git / blobdiff