REDESIGN: TextToUtf8()

ADDED: CodepointToUtf8()

src/raylib.h

@@ -1195,8 +1195,8 @@ RLAPI bool TextIsEqual(const char *text1, const char *text2);
 RLAPI unsigned int TextLength(const char *text);                                            // Get text length, checks for '\0' ending
 RLAPI const char *TextFormat(const char *text, ...);                                        // Text formatting with variables (sprintf style)
 RLAPI const char *TextSubtext(const char *text, int position, int length);                  // Get a piece of a text string
-RLAPI char *TextReplace(char *text, const char *replace, const char *by);                   // Replace text string (memory should be freed!)
-RLAPI char *TextInsert(const char *text, const char *insert, int position);                 // Insert text in a position (memory should be freed!)
+RLAPI char *TextReplace(char *text, const char *replace, const char *by);                   // Replace text string (memory must be freed!)
+RLAPI char *TextInsert(const char *text, const char *insert, int position);                 // Insert text in a position (memory must be freed!)
 RLAPI const char *TextJoin(const char **textList, int count, const char *delimiter);        // Join text strings with delimiter
 RLAPI const char **TextSplit(const char *text, char delimiter, int *count);                 // Split text into multiple strings
 RLAPI void TextAppend(char *text, const char *append, int *position);                       // Append text at specific position and move cursor!
@@ -1205,12 +1205,13 @@ RLAPI const char *TextToUpper(const char *text);                      // Get upp
 RLAPI const char *TextToLower(const char *text);                      // Get lower case version of provided string
 RLAPI const char *TextToPascal(const char *text);                     // Get Pascal case notation version of provided string
 RLAPI int TextToInteger(const char *text);                            // Get integer value from text (negative values not supported)
-RLAPI const char *TextToUtf8(int codepoint, int *byteLength);         // Encode codepoint into utf8 text (char array length returned as parameter)
+RLAPI char *TextToUtf8(int *codepoints, int length);                  // Encode text codepoint into utf8 text (memory must be freed!)
 
 // UTF8 text strings management functions
 RLAPI int *GetCodepoints(const char *text, int *count);               // Get all codepoints in a string, codepoints count returned by parameters
 RLAPI int GetCodepointsCount(const char *text);                       // Get total number of characters (codepoints) in a UTF8 encoded string
 RLAPI int GetNextCodepoint(const char *text, int *bytesProcessed);    // Returns next codepoint in a UTF8 encoded string; 0x3f('?') is returned on failure
+RLAPI const char *CodepointToUtf8(int codepoint, int *byteLength);    // Encode codepoint into utf8 text (char array length returned as parameter)
 
 //------------------------------------------------------------------------------------
 // Basic 3d Shapes Drawing Functions (Module: models)

src/text.c

@@ -1377,45 +1377,28 @@ int TextToInteger(const char *text)
     return result;
 }
 
-// Encode codepoint into utf8 text (char array length returned as parameter)
-RLAPI const char *TextToUtf8(int codepoint, int *byteLength)
+// Encode text codepoint into utf8 text (memory must be freed!)
+char *TextToUtf8(int *codepoints, int length)
 {
-    static char utf8[6] = { 0 };
-    int length = 0;
-
-    if (codepoint <= 0x7f)
-    {
-        utf8[0] = (char)codepoint;
-        length = 1;
-    }
-    else if (codepoint <= 0x7ff)
-    {
-        utf8[0] = (char)(((codepoint >> 6) & 0x1f) | 0xc0);
-        utf8[1] = (char)((codepoint & 0x3f) | 0x80);
-        length = 2;
-    }
-    else if (codepoint <= 0xffff)
-    {
-        utf8[0] = (char)(((codepoint >> 12) & 0x0f) | 0xe0);
-        utf8[1] = (char)(((codepoint >>  6) & 0x3f) | 0x80);
-        utf8[2] = (char)((codepoint & 0x3f) | 0x80);
-        length = 3;
-    }
-    else if (codepoint <= 0x10ffff)
+    // We allocate enough memory fo fit all possible codepoints
+    // NOTE: 5 bytes for every codepoint should be enough
+    char *text = (char *)calloc(length*5, 1);
+    const char *utf8 = NULL;
+    int size = 0;
+    
+    for (int i = 0, bytes = 0; i < length; i++)
     {
-        utf8[0] = (char)(((codepoint >> 18) & 0x07) | 0xf0);
-        utf8[1] = (char)(((codepoint >> 12) & 0x3f) | 0x80);
-        utf8[2] = (char)(((codepoint >>  6) & 0x3f) | 0x80);
-        utf8[3] = (char)((codepoint & 0x3f) | 0x80);
-        length = 4;
+        utf8 = CodepointToUtf8(codepoints[i], &bytes);
+        strncpy(text + size, utf8, bytes);
+        size += bytes;
     }
-
-    *byteLength = length;
-
-    return utf8;
+    
+    // Resize memory to text length + string NULL terminator
+    realloc(text, size + 1);
+    
+    return text;
 }
 
-
 // Get all codepoints in a string, codepoints count returned by parameters
 int *GetCodepoints(const char *text, int *count)
 {
@@ -1570,6 +1553,44 @@ int GetNextCodepoint(const char *text, int *bytesProcessed)
 
     return code;
 }
+
+// Encode codepoint into utf8 text (char array length returned as parameter)
+RLAPI const char *CodepointToUtf8(int codepoint, int *byteLength)
+{
+    static char utf8[6] = { 0 };
+    int length = 0;
+
+    if (codepoint <= 0x7f)
+    {
+        utf8[0] = (char)codepoint;
+        length = 1;
+    }
+    else if (codepoint <= 0x7ff)
+    {
+        utf8[0] = (char)(((codepoint >> 6) & 0x1f) | 0xc0);
+        utf8[1] = (char)((codepoint & 0x3f) | 0x80);
+        length = 2;
+    }
+    else if (codepoint <= 0xffff)
+    {
+        utf8[0] = (char)(((codepoint >> 12) & 0x0f) | 0xe0);
+        utf8[1] = (char)(((codepoint >>  6) & 0x3f) | 0x80);
+        utf8[2] = (char)((codepoint & 0x3f) | 0x80);
+        length = 3;
+    }
+    else if (codepoint <= 0x10ffff)
+    {
+        utf8[0] = (char)(((codepoint >> 18) & 0x07) | 0xf0);
+        utf8[1] = (char)(((codepoint >> 12) & 0x3f) | 0x80);
+        utf8[2] = (char)(((codepoint >>  6) & 0x3f) | 0x80);
+        utf8[3] = (char)((codepoint & 0x3f) | 0x80);
+        length = 4;
+    }
+
+    *byteLength = length;
+
+    return utf8;
+}
 //----------------------------------------------------------------------------------
 
 //----------------------------------------------------------------------------------