+++ /dev/null
-/* This file is part of the Zebra server.
- Copyright (C) 1995-2008 Index Data
-
-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 this program; if not, write to the Free Software
-Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-*/
-
-
-#include <stdio.h>
-#include <assert.h>
-#include <ctype.h>
-
-#include <idzebra/util.h>
-#include <idzebra/recctrl.h>
-#include <yaz/oid_db.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->stream->readf(fi->p->stream, 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->stream->tellf(fi->p->stream);
- off_t end_offset = off - (fi->max - fi->offset);
- fi->p->stream->endf(fi->p->stream, &end_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->stream->readf(p->stream, 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 = yaz_oid_recsyn_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