Import Upstream version 2d2upstream/2d2

1 files changed, 19 insertions, 3 deletions

diff --git a/strcase.scm b/strcase.scm
index b46b223..30b58ad 100644
--- a/strcase.scm
+++ b/strcase.scm
@@ -4,6 +4,7 @@
 ; This code is in the public domain.
 
 ; Modified by Aubrey Jaffer Nov 1992.
+; SYMBOL-APPEND added by A. Jaffer 2001.
 ; Authors of the original version were Ken Dickey and Aubrey Jaffer.
 
 ;string-upcase, string-downcase, string-capitalize
@@ -45,6 +46,21 @@
   (string-capitalize! (string-copy str)))
 
 (define string-ci->symbol
-  (if (equal? "a" (symbol->string 'a))
-      (lambda (str) (string->symbol (string-downcase str)))
-      (lambda (str) (string->symbol (string-upcase str)))))
+  (let ((s2cis (if (equal? "x" (symbol->string 'x))
+		   string-downcase string-upcase)))
+    (lambda (str) (string->symbol (s2cis str)))))
+
+(define symbol-append
+  (let ((s2cis (if (equal? "x" (symbol->string 'x))
+		   string-downcase string-upcase)))
+    (lambda args
+      (string->symbol
+       (apply string-append
+	      (map
+	       (lambda (obj)
+		 (cond ((string? obj) (s2cis obj))
+		       ((number? obj) (s2cis (number->string obj)))
+		       ((symbol? obj) (symbol->string obj))
+		       ((not obj) "")
+		       (else (slib:error 'wrong-type-to 'symbol-append obj))))
+	       args))))))