4 files changed, 22 insertions, 0 deletions
diff --git a/ChangeLog b/ChangeLog
index 4dc6b703..2f5b89a6 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,13 @@
 2011-12-07  Kaz Kylheku  <kaz@kylheku.com>
 
+	* eval.c (eval_init): New functions registered as intrinsics.
+
+	* lib.c (chr_toupper, chr_tolower): New functions.
+
+	* lib.h (chr_toupper, chr_tolower): New functions declared.
+
+2011-12-07  Kaz Kylheku  <kaz@kylheku.com>
+
 	* parser.l: In the CHRLIT state, return a nonblank character as an
 	IDENT token. This allows for character literals like #\$.
 
diff --git a/eval.c b/eval.c
index f54795aa..2f03b91f 100644
--- a/eval.c
+++ b/eval.c
@@ -1199,6 +1199,8 @@ void eval_init(void)
   reg_fun(intern(lit("chr-isspace"), user_package), func_n1(chr_isspace));
   reg_fun(intern(lit("chr-isupper"), user_package), func_n1(chr_isupper));
   reg_fun(intern(lit("chr-isxdigit"), user_package), func_n1(chr_isxdigit));
+  reg_fun(intern(lit("chr-toupper"), user_package), func_n1(chr_toupper));
+  reg_fun(intern(lit("chr-tolower"), user_package), func_n1(chr_tolower));
   reg_fun(intern(lit("chr-str"), user_package), func_n2(chr_str));
   reg_fun(intern(lit("chr-str-set"), user_package), func_n3(chr_str_set));
   reg_fun(intern(lit("span-str"), user_package), func_n2(span_str));
diff --git a/lib.c b/lib.c
index 82ab73a1..21e068cc 100644
--- a/lib.c
+++ b/lib.c
@@ -1528,6 +1528,16 @@ val chr_isxdigit(val ch)
   return c_true(iswxdigit(c_chr(ch)));
 }
 
+val chr_toupper(val ch)
+{
+  return chr(towupper(c_chr(ch)));
+}
+
+val chr_tolower(val ch)
+{
+  return chr(towlower(c_chr(ch)));
+}
+
 val chr_str(val str, val index)
 {
   bug_unless (length_str_gt(str, index));
diff --git a/lib.h b/lib.h
index 776f1221..b5e1a15f 100644
--- a/lib.h
+++ b/lib.h
@@ -407,6 +407,8 @@ val chr_ispunct(val ch);
 val chr_isspace(val ch);
 val chr_isupper(val ch);
 val chr_isxdigit(val ch);
+val chr_toupper(val ch);
+val chr_tolower(val ch);
 val chr_str(val str, val index);
 val chr_str_set(val str, val index, val chr);
 val span_str(val str, val set);