2 files changed, 23 insertions, 0 deletions
diff --git a/common/str.cpp b/common/str.cpp
index e8e73a32a2..ffb8c298b0 100644
--- a/common/str.cpp
+++ b/common/str.cpp
@@ -160,6 +160,16 @@ void String::deleteLastChar() {
 	}
 }
 
+void String::deleteChar(int p)
+{
+	if (p >= 0 && p < _len) {
+		ensureCapacity(_len - 1, true);
+		while (p++ < _len)
+			_str[p-1] = _str[p];
+		_len--;
+	}
+}
+
 void String::clear()
 {
 	if (_capacity) {
@@ -172,6 +182,17 @@ void String::clear()
 	}
 }
 
+void String::insertChar(char c, int p)
+{
+	if (p >= 0 && p <= _len) {
+		ensureCapacity(++_len, true);
+		for (int i = _len; i > p; i--) {
+			_str[i] = _str[i-1];
+		}
+		_str[p] = c;
+	}
+}
+
 void String::toLowercase()
 {
 	if (_str == 0 || _len == 0)
diff --git a/common/str.h b/common/str.h
index 4c2a985d46..8ff84c3b5d 100644
--- a/common/str.h
+++ b/common/str.h
@@ -110,7 +110,9 @@ public:
 	}
 
 	void deleteLastChar();
+	void deleteChar(int p);
 	void clear();
+	void insertChar(char c, int p);
 	
 	void toLowercase();
 	void toUppercase();