Add category NSString(MLKPrinting).

3 files changed, 59 insertions, 1 deletions

diff --git a/GNUmakefile b/GNUmakefile
index 119bc57..e8f3e08 100644
--- a/GNUmakefile
+++ b/GNUmakefile
@@ -32,7 +32,7 @@ ToiletKit_OBJC_FILES = MLKCharacter.m MLKCons.m MLKDoubleFloat.m	\
                        MLKStringInputStream.m MLKSymbol.m		\
                        MLKThrowException.m				\
                        MLKUndefinedVariableException.m			\
-                       NSObject-MLKPrinting.m
+                       NSObject-MLKPrinting.m NSString-MLKPrinting.m
 ToiletKit_LDFLAGS = -lgmp
 #LIBRARIES_DEPEND_UPON
 
diff --git a/NSString-MLKPrinting.h b/NSString-MLKPrinting.h
new file mode 100644
index 0000000..8d14606
--- /dev/null
+++ b/NSString-MLKPrinting.h
@@ -0,0 +1,24 @@
+/* -*- mode: objc; coding: utf-8 -*- */
+/* Étoilisp/Mulklisp, a Common Lisp subset for the Étoilé runtime.
+ * Copyright (C) 2008  Matthias Andreas Benkard.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or (at
+ * your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#import <Foundation/NSString.h>
+
+
+@interface NSString (MLKPrinting)
+-(NSString *)descriptionForLisp;
+@end
diff --git a/NSString-MLKPrinting.m b/NSString-MLKPrinting.m
new file mode 100644
index 0000000..c8f9f34
--- /dev/null
+++ b/NSString-MLKPrinting.m
@@ -0,0 +1,34 @@
+/* -*- mode: objc; coding: utf-8 -*- */
+/* Étoilisp/Mulklisp, a Common Lisp subset for the Étoilé runtime.
+ * Copyright (C) 2008  Matthias Andreas Benkard.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or (at
+ * your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#import "NSString-MLKPrinting.h"
+
+
+@implementation NSString (MLKPrinting)
+-(NSString *)descriptionForLisp
+{
+  NSMutableString *str = [NSMutableString stringWithString:self];
+  
+  [str replaceOccurrencesOfString:@"\""
+       withString:@"\\\""
+       options:NSLiteralSearch
+       range:NSMakeRange(0, [str length])];
+    
+  return [NSString stringWithFormat:@"\"%@\"", str];
+}
+@end