new public couchapp

README.md

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+# jsindexer
+
+jsindexer is an example javascript view that creates an inverted index needed to do full text search on a CouchApp or CouchDB database hosted on cloudant.com.  This is an alternative to the Java/Lucene indexers used by default.
+
+## Requirements
+
+cloudant hosted account (sign up at <https://cloudant.com/#!/solutions/cloud>), couchapp
+
+## Install
+
+<pre><code>cd jsindexer
+cat > .couchapprc
+{"env":{"default":{"db":"http://&lt;user&gt;:&lt;pass&gt;@&lt;user&gt;.cloudant.com:5984/&lt;db_or_couchapp_you_want_to_search&gt;"}}}
+^C</code></pre>
+
+*that last line means hit **CTRL-C***
+
+To configure the indexing of documents, modify the file:
+
+views/whitespace/map.js
+
+Cloudant search expects key,value pairs with the following format:
+
+<pre><code>emit([field,token],[[1,6,8]]);</code></pre>
+
+where 1,6,8 are the positions of that token in the field.  The positions enable phrase searches.
+
+<pre><code>couchapp push</code></pre>
+
+Now trigger indexing with:
+
+<pre><code>http://&lt;user&gt;.cloudant.com:5984/&lt;db_or_couchapp_you_want_to_search&gt;/_design/jsindexer/_view/whitespace</code></pre>
+
+Once indexing is done, you can use the regular search syntax (<http://support.cloudant.com/kb/search/search-api>), but yon need to specify the index:
+
+<pre><code>http://&lt;user&gt;.cloudant.com:5984/&lt;db_or_couchapp_you_want_to_search&gt;/_search?q=myfield:"some phrase"&index=_design/jsindexer/_view/whitespace</code></pre>
+

views/whitespace/map.js

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+function(doc) {
+        function map_array(arr,name) {
+                var i;
+                for (i = 0; i < arr.length; i++) {
+                        var value = arr[i];
+                        if (value instanceof Array) {
+                                map_array(value,name);
+                        } else if (value instanceof Object) {
+                                map_object(value, name);
+                        } else {
+                                emit_as_string(value, name);
+                        }
+                }
+        }
+        function map_object(doc,name) {
+                var key;
+                var newname;
+                for (key in doc) {
+                        if (name===null) {
+                                newname = key;
+                        } else {
+                                newname = name + "." + key;
+                        }
+                        var value = doc[key];
+                        if (value instanceof Array) {
+                                map_array(value,newname);
+                        } else if (value instanceof Object) {
+                                        map_object(value, newname);
+                        } else {
+                                        emit_as_string(value, newname);
+                        }
+                }
+        }
+        function analyzer(value) {
+                var lc = value.toLowerCase();
+                var arr = lc.split(/[\s,.!;?:-]/);
+                return arr;
+        }
+        function emit_as_string(value,name) {
+                try {
+                     var arr = analyzer(value);
+                     var i;
+                     for (i=0;i<arr.length;i++) {
+                        emit([name,arr[i]],[[i]]);
+                     }
+                } catch (err) {
+                        emit([name,value],[[0]]);
+                }
+        }
+        map_object(doc,null);
+}

views/whitespace/reduce.js

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+_count