io: nab io.streams.peek's stream-exemplar-growable

Rename stream-element-examplar to stream-exemplar to match.

core/io/io.factor

@@ -81,14 +81,17 @@ SYMBOL: error-stream
 
 <PRIVATE
 
-: (stream-element-exemplar) ( type -- exemplar )
-    {
+: stream-exemplar ( stream -- exemplar )
+    stream-element-type {
         { +byte+ [ B{ } ] }
         { +character+ [ "" ] }
     } case ; inline
 
-: stream-element-exemplar ( stream -- exemplar )
-    stream-element-type (stream-element-exemplar) ; inline
+: stream-exemplar-growable ( stream -- exemplar )
+    stream-element-type {
+        { +byte+ [ BV{ } ] }
+        { +character+ [ SBUF" " ] }
+    } case ; inline
 
 PRIVATE>
 
@@ -120,7 +123,7 @@ PRIVATE>
 : stream-contents ( stream -- seq )
     [
         [ [ ] collector [ each-stream-block ] dip { } like ]
-        [ stream-element-exemplar concat-as ] bi
+        [ stream-exemplar concat-as ] bi
     ] with-disposal ;
 
 : stream-contents-length ( stream -- n )
@@ -147,7 +150,7 @@ PRIVATE>
 MIXIN: noncopying-reader
 
 : (new-sequence-for-stream) ( n stream -- seq )
-    stream-element-exemplar new-sequence ; inline
+    stream-exemplar new-sequence ; inline
 
 : (read-into-new) ( n stream quot -- byte-array/f )
     [ 2dup (new-sequence-for-stream) swap ] dip curry keep

extra/io/streams/peek/peek.factor

@@ -9,17 +9,11 @@ TUPLE: peek-stream stream peeked ;
 
 M: peek-stream dispose stream>> dispose ;
 
-: stream-exemplar-growable ( stream -- exemplar )
-    stream-element-type {
-        { +byte+ [ BV{ } ] }
-        { +character+ [ SBUF" " ] }
-    } case ; inline
-
 : stream-new-resizable ( n stream -- exemplar )
-    stream-element-exemplar new-resizable ; inline
+    stream-exemplar new-resizable ; inline
 
 : stream-like ( sequence stream -- sequence' )
-    stream-element-exemplar like ; inline
+    stream-exemplar like ; inline
 
 : stream-clone-resizable ( sequence stream -- sequence' )
     stream-exemplar-growable clone-like ; inline
@@ -52,7 +46,7 @@ M:: peek-stream stream-read ( n stream -- sequence )
         ] [
             peeked <reversed>
             n #peeked - stream stream>> stream-read
-            stream stream-element-exemplar append-as
+            stream stream-exemplar append-as
 
             stream stream-exemplar-growable clone stream peeked<<
         ] if
@@ -83,7 +77,7 @@ M: peek-stream stream-flush stream>> stream-flush ;
 
 : stream-peek ( n stream -- seq )
     2dup peeked>> { [ length <= ] [ length 0 > ] } 1&& [
-        [ peeked>> <reversed> swap head ] [ stream-element-exemplar like ] bi
+        [ peeked>> <reversed> swap head ] [ stream-exemplar like ] bi
     ] [
         [ nip ]
         [ stream-read ] 2bi