update elements and fix some bugs

lib/src/prism/tests/languages/vhdl/keyword_feature.test

Index: lib/src/prism/tests/languages/vhdl/keyword_feature.test
diff --git a/lib/src/prism/tests/languages/vhdl/keyword_feature.test b/lib/src/prism/tests/languages/vhdl/keyword_feature.test
new file mode 100644
index 0000000000000000000000000000000000000000..e67f11ef5147e0fea0f667ac677483d6c02898b0
--- /dev/null
+++ b/lib/src/prism/tests/languages/vhdl/keyword_feature.test
@@ -0,0 +1,229 @@
+A'active
+A'ascending
+A'base
+A'delayed
+A'driving
+A'driving_value
+A'event
+A'high
+A'image
+A'instance_name
+A'last_active
+A'last_event
+A'last_value
+A'left
+A'leftof
+A'length
+A'low
+A'path_name
+A'pos
+A'pred
+A'quiet
+A'range
+A'reverse_range
+A'right
+A'rightof
+A'simple_name
+A'stable
+A'succ
+A'transaction
+A'val
+A'value
+access
+after
+alias
+all
+architecture
+array
+assert
+attribute
+begin
+block
+body
+buffer
+bus
+case
+component
+configuration
+constant
+disconnect
+downto
+else
+elsif
+end
+entity
+exit
+file
+for
+function
+generate
+generic
+group
+guarded
+if
+impure
+in
+inertial
+inout
+is
+label
+linkage
+literal
+loop
+map
+new
+next
+null
+of
+on
+open
+others
+out
+package
+port
+postponed
+procedure
+process
+pure
+range
+record
+register
+reject
+report
+return
+select
+severity
+shared
+signal
+subtype
+then
+to
+transport
+type
+unaffected
+units
+until
+variable
+wait
+when
+while
+with
+
+----------------------------------------------------
+
+[
+	"A", ["keyword", "'active"],
+	"\r\nA", ["keyword", "'ascending"],
+	"\r\nA", ["keyword", "'base"],
+	"\r\nA", ["keyword", "'delayed"],
+	"\r\nA", ["keyword", "'driving"],
+	"\r\nA", ["keyword", "'driving_value"],
+	"\r\nA", ["keyword", "'event"],
+	"\r\nA", ["keyword", "'high"],
+	"\r\nA", ["keyword", "'image"],
+	"\r\nA", ["keyword", "'instance_name"],
+	"\r\nA", ["keyword", "'last_active"],
+	"\r\nA", ["keyword", "'last_event"],
+	"\r\nA", ["keyword", "'last_value"],
+	"\r\nA", ["keyword", "'left"],
+	"\r\nA", ["keyword", "'leftof"],
+	"\r\nA", ["keyword", "'length"],
+	"\r\nA", ["keyword", "'low"],
+	"\r\nA", ["keyword", "'path_name"],
+	"\r\nA", ["keyword", "'pos"],
+	"\r\nA", ["keyword", "'pred"],
+	"\r\nA", ["keyword", "'quiet"],
+	"\r\nA", ["keyword", "'range"],
+	"\r\nA", ["keyword", "'reverse_range"],
+	"\r\nA", ["keyword", "'right"],
+	"\r\nA", ["keyword", "'rightof"],
+	"\r\nA", ["keyword", "'simple_name"],
+	"\r\nA", ["keyword", "'stable"],
+	"\r\nA", ["keyword", "'succ"],
+	"\r\nA", ["keyword", "'transaction"],
+	"\r\nA", ["keyword", "'val"],
+	"\r\nA", ["keyword", "'value"],
+	["keyword", "access"],
+	["keyword", "after"],
+	["keyword", "alias"],
+	["keyword", "all"],
+	["keyword", "architecture"],
+	["keyword", "array"],
+	["keyword", "assert"],
+	["keyword", "attribute"],
+	["keyword", "begin"],
+	["keyword", "block"],
+	["keyword", "body"],
+	["keyword", "buffer"],
+	["keyword", "bus"],
+	["keyword", "case"],
+	["keyword", "component"],
+	["keyword", "configuration"],
+	["keyword", "constant"],
+	["keyword", "disconnect"],
+	["keyword", "downto"],
+	["keyword", "else"],
+	["keyword", "elsif"],
+	["keyword", "end"],
+	["keyword", "entity"],
+	["keyword", "exit"],
+	["keyword", "file"],
+	["keyword", "for"],
+	["keyword", "function"],
+	["keyword", "generate"],
+	["keyword", "generic"],
+	["keyword", "group"],
+	["keyword", "guarded"],
+	["keyword", "if"],
+	["keyword", "impure"],
+	["keyword", "in"],
+	["keyword", "inertial"],
+	["keyword", "inout"],
+	["keyword", "is"],
+	["keyword", "label"],
+	["keyword", "linkage"],
+	["keyword", "literal"],
+	["keyword", "loop"],
+	["keyword", "map"],
+	["keyword", "new"],
+	["keyword", "next"],
+	["keyword", "null"],
+	["keyword", "of"],
+	["keyword", "on"],
+	["keyword", "open"],
+	["keyword", "others"],
+	["keyword", "out"],
+	["keyword", "package"],
+	["keyword", "port"],
+	["keyword", "postponed"],
+	["keyword", "procedure"],
+	["keyword", "process"],
+	["keyword", "pure"],
+	["keyword", "range"],
+	["keyword", "record"],
+	["keyword", "register"],
+	["keyword", "reject"],
+	["keyword", "report"],
+	["keyword", "return"],
+	["keyword", "select"],
+	["keyword", "severity"],
+	["keyword", "shared"],
+	["keyword", "signal"],
+	["keyword", "subtype"],
+	["keyword", "then"],
+	["keyword", "to"],
+	["keyword", "transport"],
+	["keyword", "type"],
+	["keyword", "unaffected"],
+	["keyword", "units"],
+	["keyword", "until"],
+	["keyword", "variable"],
+	["keyword", "wait"],
+	["keyword", "when"],
+	["keyword", "while"],
+	["keyword", "with"]
+]
+
+----------------------------------------------------
+
+Checks for all keywords.