Made $[%name] to retrieve keyword values in a tag. Has bugs.

tests/dump.txt

@@ -14,17 +14,13 @@ modified1=[ABCD]
 multiplication=[15]
 nested=[64]
 newname=[another container value]
-noeval=[this is the value store in #[name1].]
+noeval=[this is the value store in $[%name1].]
 numbers=[0123456789]
 subtraction=[2]
 theexpr=[bcd]
-thename=[this is the value store in localname.]
+thename=[this is the value store in .]
 tohex=[tohex]
 varname1=[vardata]
 *** LOCAL VARIABLES ***
-cgi=[true]
-filterblanklines=[true]
-localvar=[This is a container set with 'localname']
-name1=[localname]
-testinclude=[xThis is a container set with 'localname'x]
-trimlines=[true]
+localvar=[This is a container set with '']
+testinclude=[xThis is a container set with ''x]