Changes between Version 7 and Version 8 of ScriptableInterface

Timestamp:

Dec 3, 2012, 1:05:32 PM (12 years ago)

Author:

manualwiki

Comment:

--

ScriptableInterface

@@ -117 +117 @@
 
 == Operators ==
-
 The result of the queries can be combined with the following set operators: \\
 * '''intersect''': The following example takes the intersection of the files included by the two modules.
@@ -131 +130 @@
 * '''minus''': The substraction set operation. (Example: same as above, just substitute 'intersect' with 'minus') \\
 
-* '''Sequence''': Queries can be sequenced to continue a query from where another has left off. This example first adds the module from file 'mymodule.erl'. The add call returns the entities loaded. A semantic query aggregate of a list works by executing the first query (or in this case, specifying a starting entity), and then running the next query in the chain (in this case getting the name of files included by the add call).
+* '''Sequence''': Queries can be sequenced to continue a query from where another has left off. The execution works on arbitrarily long starting and continuation sequences (i.e., not just a single element). The following examples are correct, and can be used from {{{ris}}}:
+
+{{{
+#!erlang
+
+% Language elements can be written via atoms or via strings. The dot is optional.
+ris:q([mods, funs]).
+ris:q([mods, .funs]).
+ris:q(["mods", "funs"]).
+
+% Filters can be sequenced.
+ris:q(['mods', '[name==a]']).
+
+% Statistics can be sequenced.
+ris:q(['mods', '.fun', '.arity', ':sum']).
+ris:q(["mods", "funs", "arity", ":avg"]).
+}}}
+
+ Sequences can be constructed not only between queries parts, but between a basic {{{ris}}} command and query parts, too. 
+ This example first adds the module from file 'mymodule.erl'. The add call returns the entities loaded. 
+ A semantic query aggregate of a list works by executing the first query (or in this case, specifying a starting entity), 
+ and then running the next query in the chain (in this case getting the name of files included by the add call).
 
 {{{