summaryrefslogtreecommitdiffstats
path: root/plugin/fulltext
diff options
context:
space:
mode:
authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-04 18:07:14 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-04 18:07:14 +0000
commita175314c3e5827eb193872241446f2f8f5c9d33c (patch)
treecd3d60ca99ae00829c52a6ca79150a5b6e62528b /plugin/fulltext
parentInitial commit. (diff)
downloadmariadb-10.5-9e4947182e0b875da38088fdd168e775f473b8ad.tar.xz
mariadb-10.5-9e4947182e0b875da38088fdd168e775f473b8ad.zip
Adding upstream version 1:10.5.12.upstream/1%10.5.12upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r--plugin/fulltext/AUTHORS1
-rw-r--r--plugin/fulltext/CMakeLists.txt17
-rw-r--r--plugin/fulltext/ChangeLog1
-rw-r--r--plugin/fulltext/NEWS1
-rw-r--r--plugin/fulltext/README1
-rw-r--r--plugin/fulltext/plugin_example.c273
6 files changed, 294 insertions, 0 deletions
diff --git a/plugin/fulltext/AUTHORS b/plugin/fulltext/AUTHORS
new file mode 100644
index 00000000..9c456788
--- /dev/null
+++ b/plugin/fulltext/AUTHORS
@@ -0,0 +1 @@
+AUTHORS file example for a plugin
diff --git a/plugin/fulltext/CMakeLists.txt b/plugin/fulltext/CMakeLists.txt
new file mode 100644
index 00000000..23710ee1
--- /dev/null
+++ b/plugin/fulltext/CMakeLists.txt
@@ -0,0 +1,17 @@
+# Copyright (c) 2006, 2010, Oracle and/or its affiliates. All rights reserved.
+#
+# This program 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; version 2 of the License.
+#
+# This program 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 02110-1335 USA
+
+MYSQL_ADD_PLUGIN(ftexample plugin_example.c
+ MODULE_ONLY MODULE_OUTPUT_NAME "mypluglib" COMPONENT Test)
diff --git a/plugin/fulltext/ChangeLog b/plugin/fulltext/ChangeLog
new file mode 100644
index 00000000..1faaaad6
--- /dev/null
+++ b/plugin/fulltext/ChangeLog
@@ -0,0 +1 @@
+ChangeLog file example for a plugin
diff --git a/plugin/fulltext/NEWS b/plugin/fulltext/NEWS
new file mode 100644
index 00000000..e5b6cbd5
--- /dev/null
+++ b/plugin/fulltext/NEWS
@@ -0,0 +1 @@
+NEWS file example for a plugin
diff --git a/plugin/fulltext/README b/plugin/fulltext/README
new file mode 100644
index 00000000..e4d01f2a
--- /dev/null
+++ b/plugin/fulltext/README
@@ -0,0 +1 @@
+README file example for a plugin
diff --git a/plugin/fulltext/plugin_example.c b/plugin/fulltext/plugin_example.c
new file mode 100644
index 00000000..fb8de478
--- /dev/null
+++ b/plugin/fulltext/plugin_example.c
@@ -0,0 +1,273 @@
+/* Copyright (c) 2005, 2011, Oracle and/or its affiliates
+
+ This program 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; version 2 of the License.
+
+ This program 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 02110-1335 USA */
+
+#include <stdlib.h>
+#include <ctype.h>
+#include <mysql/plugin.h>
+
+#if !defined(__attribute__) && (defined(__cplusplus) || !defined(__GNUC__) || __GNUC__ == 2 && __GNUC_MINOR__ < 8)
+#define __attribute__(A)
+#endif
+
+static long number_of_calls= 0; /* for SHOW STATUS, see below */
+
+/*
+ Simple full-text parser plugin that acts as a replacement for the
+ built-in full-text parser:
+ - All non-whitespace characters are significant and are interpreted as
+ "word characters."
+ - Whitespace characters are space, tab, CR, LF.
+ - There is no minimum word length. Non-whitespace sequences of one
+ character or longer are words.
+ - Stopwords are used in non-boolean mode, not used in boolean mode.
+*/
+
+/*
+ simple_parser interface functions:
+
+ Plugin declaration functions:
+ - simple_parser_plugin_init()
+ - simple_parser_plugin_deinit()
+
+ Parser descriptor functions:
+ - simple_parser_parse()
+ - simple_parser_init()
+ - simple_parser_deinit()
+*/
+
+
+/*
+ Initialize the parser plugin at server start or plugin installation.
+
+ SYNOPSIS
+ simple_parser_plugin_init()
+
+ DESCRIPTION
+ Does nothing.
+
+ RETURN VALUE
+ 0 success
+ 1 failure (cannot happen)
+*/
+
+static int simple_parser_plugin_init(void *arg __attribute__((unused)))
+{
+ return(0);
+}
+
+
+/*
+ Terminate the parser plugin at server shutdown or plugin deinstallation.
+
+ SYNOPSIS
+ simple_parser_plugin_deinit()
+ Does nothing.
+
+ RETURN VALUE
+ 0 success
+ 1 failure (cannot happen)
+
+*/
+
+static int simple_parser_plugin_deinit(void *arg __attribute__((unused)))
+{
+ return(0);
+}
+
+
+/*
+ Initialize the parser on the first use in the query
+
+ SYNOPSIS
+ simple_parser_init()
+
+ DESCRIPTION
+ Does nothing.
+
+ RETURN VALUE
+ 0 success
+ 1 failure (cannot happen)
+*/
+
+static int simple_parser_init(MYSQL_FTPARSER_PARAM *param
+ __attribute__((unused)))
+{
+ return(0);
+}
+
+
+/*
+ Terminate the parser at the end of the query
+
+ SYNOPSIS
+ simple_parser_deinit()
+
+ DESCRIPTION
+ Does nothing.
+
+ RETURN VALUE
+ 0 success
+ 1 failure (cannot happen)
+*/
+
+static int simple_parser_deinit(MYSQL_FTPARSER_PARAM *param
+ __attribute__((unused)))
+{
+ return(0);
+}
+
+
+/*
+ Pass a word back to the server.
+
+ SYNOPSIS
+ add_word()
+ param parsing context of the plugin
+ word a word
+ len word length
+
+ DESCRIPTION
+ Fill in boolean metadata for the word (if parsing in boolean mode)
+ and pass the word to the server. The server adds the word to
+ a full-text index when parsing for indexing, or adds the word to
+ the list of search terms when parsing a search string.
+*/
+
+static void add_word(MYSQL_FTPARSER_PARAM *param, const char *word, size_t len)
+{
+ MYSQL_FTPARSER_BOOLEAN_INFO bool_info=
+ { FT_TOKEN_WORD, 0, 0, 0, 0, ' ', 0 };
+
+ param->mysql_add_word(param, word, (int)len, &bool_info);
+}
+
+/*
+ Parse a document or a search query.
+
+ SYNOPSIS
+ simple_parser_parse()
+ param parsing context
+
+ DESCRIPTION
+ This is the main plugin function which is called to parse
+ a document or a search query. The call mode is set in
+ param->mode. This function simply splits the text into words
+ and passes every word to the MySQL full-text indexing engine.
+*/
+
+static int simple_parser_parse(MYSQL_FTPARSER_PARAM *param)
+{
+ const char *end, *start, *docend= param->doc + param->length;
+
+ number_of_calls++;
+
+ for (end= start= param->doc;; end++)
+ {
+ if (end == docend)
+ {
+ if (end > start)
+ add_word(param, start, end - start);
+ break;
+ }
+ else if (isspace(*end))
+ {
+ if (end > start)
+ add_word(param, start, end - start);
+ start= end + 1;
+ }
+ }
+ return(0);
+}
+
+
+/*
+ Plugin type-specific descriptor
+*/
+
+static struct st_mysql_ftparser simple_parser_descriptor=
+{
+ MYSQL_FTPARSER_INTERFACE_VERSION, /* interface version */
+ simple_parser_parse, /* parsing function */
+ simple_parser_init, /* parser init function */
+ simple_parser_deinit /* parser deinit function */
+};
+
+/*
+ Plugin status variables for SHOW STATUS
+*/
+
+static struct st_mysql_show_var simple_status[]=
+{
+ {"A_static", (char *)"just a static text", SHOW_CHAR},
+ {"called", (char *)&number_of_calls, SHOW_LONG},
+ {0,0,0}
+};
+
+/*
+ Plugin system variables.
+*/
+
+static long sysvar_one_value;
+static char *sysvar_two_value;
+
+static MYSQL_SYSVAR_LONG(simple_sysvar_one, sysvar_one_value,
+ PLUGIN_VAR_RQCMDARG,
+ "Simple fulltext parser example system variable number one. Give a number.",
+ NULL, NULL, 77L, 7L, 777L, 0);
+
+static MYSQL_SYSVAR_STR(simple_sysvar_two, sysvar_two_value,
+ PLUGIN_VAR_RQCMDARG | PLUGIN_VAR_MEMALLOC,
+ "Simple fulltext parser example system variable number two. Give a string.",
+ NULL, NULL, "simple sysvar two default");
+
+static MYSQL_THDVAR_LONG(simple_thdvar_one,
+ PLUGIN_VAR_RQCMDARG,
+ "Simple fulltext parser example thread variable number one. Give a number.",
+ NULL, NULL, 88L, 8L, 888L, 0);
+
+static MYSQL_THDVAR_STR(simple_thdvar_two,
+ PLUGIN_VAR_RQCMDARG | PLUGIN_VAR_MEMALLOC,
+ "Simple fulltext parser example thread variable number two. Give a string.",
+ NULL, NULL, "simple thdvar two default");
+
+static struct st_mysql_sys_var* simple_system_variables[]= {
+ MYSQL_SYSVAR(simple_sysvar_one),
+ MYSQL_SYSVAR(simple_sysvar_two),
+ MYSQL_SYSVAR(simple_thdvar_one),
+ MYSQL_SYSVAR(simple_thdvar_two),
+ NULL
+};
+
+/*
+ Plugin library descriptor
+*/
+
+maria_declare_plugin(ftexample)
+{
+ MYSQL_FTPARSER_PLUGIN, /* type */
+ &simple_parser_descriptor, /* descriptor */
+ "simple_parser", /* name */
+ "Sergei Golubchik", /* author */
+ "Simple Full-Text Parser", /* description */
+ PLUGIN_LICENSE_GPL,
+ simple_parser_plugin_init, /* init function (when loaded) */
+ simple_parser_plugin_deinit,/* deinit function (when unloaded) */
+ 0x0001, /* version */
+ simple_status, /* status variables */
+ simple_system_variables, /* system variables */
+ "0.01", /* string version */
+ MariaDB_PLUGIN_MATURITY_EXPERIMENTAL /* maturity */
+}
+maria_declare_plugin_end;