Added a function to get a range of characters from the TString object.

tstring.c

@@ -5,7 +5,6 @@
 #include <errno.h>
 
 void TStringCopyGlyph(const char* glyph, int length, TString* string);
-void TStringCompactString(unsigned int startByte, unsigned int endByte, TString* string);
 int ResizeTStringCapacity(int newTextLength, TString* string);
 int GetGlyphByteWidth(char glyph);
 
@@ -171,10 +170,6 @@ void TStringInsertText(const char* text, int index, TString* string) {
     string->ByteCount += insertionTextLength;
 }
 
-void TStringCompactString(unsigned int startByte, unsigned int endByte, TString* string) {
-
-}
-
 void TStringAppendText(const char* text, TString* string) {
     if (!text || !string) return;
 
@@ -214,6 +209,37 @@ char* TStringGetString(const TString* string) {
     return text;
 }
 
+char* TStringGetStringRange(int startIndex, int count, const TString* string) {
+    if (!string) return NULL;
+    if (startIndex < 0 || startIndex >= string->Length) return NULL;
+    if (count > string->Length) return NULL;
+
+    char* text = calloc(string->ByteCount + 1, sizeof(char));
+
+    if (!text) {
+        fprintf(stderr, "Failed to calloc memory for TString text. %s.\n", strerror(errno));
+
+        return NULL;
+    }
+
+    unsigned int startByte = 0;
+    unsigned int glyphCount = 0;
+
+    while(glyphCount != startIndex) {
+        startByte += GetGlyphByteWidth(string->Characters[startByte]);
+
+        glyphCount++;
+    }
+
+    unsigned int endByte = startByte;
+
+    for (glyphCount = 0; glyphCount < count && endByte <= string->ByteCount; glyphCount++) endByte += GetGlyphByteWidth(string->Characters[endByte]);
+    
+    memcpy(text, &string->Characters[startByte], endByte - startByte);
+
+    return text;
+}
+
 void TStringGetGlyph(int index, char buffer[8], const TString* string) {
     if (!buffer || !string) return;