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73 lines
1.8 KiB
C
73 lines
1.8 KiB
C
/* -*- c-basic-offset: 2 -*- */
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/*
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Copyright(C) 2015 Brazil
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License version 2.1 as published by the Free Software Foundation.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with this library; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335 USA
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*/
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#include "grn_scanner.h"
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grn_scanner *
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grn_scanner_open(grn_ctx *ctx,
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grn_obj *expr,
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grn_operator op,
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grn_bool record_exist)
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{
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grn_scanner *scanner;
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scanner = GRN_MALLOC(sizeof(grn_scanner));
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if (!scanner) {
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return NULL;
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}
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scanner->source_expr = expr;
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scanner->expr = grn_expr_rewrite(ctx, expr);
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if (!scanner->expr) {
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scanner->expr = expr;
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}
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scanner->sis = grn_scan_info_build(ctx,
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scanner->expr,
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&(scanner->n_sis),
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op,
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record_exist);
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if (!scanner->sis) {
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grn_scanner_close(ctx, scanner);
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return NULL;
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}
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return scanner;
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}
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void
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grn_scanner_close(grn_ctx *ctx, grn_scanner *scanner)
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{
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if (!scanner) {
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return;
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}
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if (scanner->sis) {
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uint i;
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for (i = 0; i < scanner->n_sis; i++) {
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grn_scan_info_close(ctx, scanner->sis[i]);
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}
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GRN_FREE(scanner->sis);
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}
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if (scanner->expr != scanner->source_expr) {
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grn_obj_close(ctx, scanner->expr);
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}
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GRN_FREE(scanner);
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}
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