diff --git a/attachments.scad b/attachments.scad
index eaf674e..08ab959 100644
--- a/attachments.scad
+++ b/attachments.scad
@@ -531,19 +531,12 @@ function attachment_is_shown(tags) =
 	assert(!is_undef($tags_shown))
 	assert(!is_undef($tags_hidden))
 	let(
-		tags = _str_char_split(tags, " "),
+		tags = str_split(tags, " "),
 		shown  = !$tags_shown || any([for (tag=tags) in_list(tag, $tags_shown)]),
 		hidden = any([for (tag=tags) in_list(tag, $tags_hidden)])
 	) shown && !hidden;
 
 
-function _str_char_split(s,delim,n=0,acc=[],word="") =
-	(n>=len(s))? concat(acc, [word]) :
-	(s[n]==delim)?
-		_str_char_split(s,delim,n+1,concat(acc,[word]),"") :
-		_str_char_split(s,delim,n+1,acc,str(word,s[n]));
-
-
 // Function: reorient()
 //
 // Usage:
@@ -1054,7 +1047,7 @@ module recolor(c)
 //   }
 module hide(tags="")
 {
-	$tags_hidden = tags==""? [] : _str_char_split(tags, " ");
+	$tags_hidden = tags==""? [] : str_split(tags, " ");
 	children();
 }
 
@@ -1071,7 +1064,7 @@ module hide(tags="")
 //   }
 module show(tags="")
 {
-	$tags_shown = tags==""? [] : _str_char_split(tags, " ");
+	$tags_shown = tags==""? [] : str_split(tags, " ");
 	children();
 }
 
diff --git a/std.scad b/std.scad
index c509e49..2599a0c 100644
--- a/std.scad
+++ b/std.scad
@@ -16,6 +16,7 @@ include <edges.scad>
 include <common.scad>
 include <errors.scad>
 include <arrays.scad>
+include <strings.scad>
 include <vnf.scad>
 
 include <math.scad>
diff --git a/version.scad b/version.scad
index 086aa47..e6f19c1 100644
--- a/version.scad
+++ b/version.scad
@@ -8,7 +8,7 @@
 //////////////////////////////////////////////////////////////////////
 
 
-BOSL_VERSION = [2,0,184];
+BOSL_VERSION = [2,0,185];
 
 
 // Section: BOSL Library Version Functions