Refer to existing Erlang types

eeps/eep-0065.md

@@ -19,7 +19,7 @@ language features,  many of which exists in Elixir under the umbrella of
 * [String Interpolation Syntax][2]
 * Regular Expression Syntax
 * Choice of string delimiters
-* Binary Strings
+* Binary Strings; `unicode:unicode_binary()`
 * Verbatim Strings
 * Escape sequences in [Triple-Quoted Strings][EEP 64] (multi-line strings)
 
@@ -159,8 +159,10 @@ insensitive regular expression.
 
 The suggested Sigil Types, inherited from Elixir, are:
 
-* «`s`»: binary string, an string represented as an UTF-8 encoded binary
-* «`c`»: char list, an Erlang string (Unicode codepoint list)
+* «`s`»: `unicode:unicode_binary()`, a string represented
+  as a UTF-8 encoded binary
+* «`c`»: `string()`, an Erlang string, a.k.a character list
+  (Unicode codepoint list)
 * «`r`»: regular expression, pre-compiled.
   [Sigil Suffix][]es such as in Elixir: «`u`», «`i`», «`s`», «`m`»,
   «`x`», «`f`» and «`U`», should be implemented as flags to
@@ -169,16 +171,17 @@ The suggested Sigil Types, inherited from Elixir, are:
 
 All those Sigil Types allow both escape sequences and string interpolation.
 
-The capital letter Sigil Types «`S`», «`C`» and «`R`» are siblings
-to the above but takes the String Content verbatim as in
-does not handle escape sequences nor string interpolation.
+The capital letter Sigil Types «`S`», «`C`» and «`R`» are
+siblings to the above but takes the String Content verbatim as in
+do not handle escape sequences nor string interpolation.
 
 #### The Empty Sigil
 
-The Empty Sigil (default type) should either be disallowed, like in Elixir,
-or implement the most desired use case, which might be one of
+The Empty Sigil (default [Sigil Type][]) should either be disallowed,
+like in Elixir, or implement the most desired use case,
+which might be one of:
 
-* Shorthand for today's binary strings:
+* Shorthand for today's `unicode:unicode_binary()`s:
   «`~"Content"`» equivalent to «`<<"Content"/utf8>>`»
 * Regular strings with choice of [String Delimiters][]:
   «`~{"Content"}`» equivalent to «`"\"Content\""`»