CR characters absorbed into LF characters

4ed.cpp

@@ -9,11 +9,6 @@
 
 // TOP
 
-#define DEFAULT_DISPLAY_WIDTH 672
-#define DEFAULT_MINIMUM_BASE_DISPLAY_WIDTH 550
-
-////////////////////////////////
-
 Mutex_Lock::Mutex_Lock(System_Functions *s, System_Mutex m){
     s->mutex_acquire(m);
     this->system = s;
@@ -893,9 +888,6 @@ App_Init_Sig(app_init){
     
     Mutex_Lock file_order_lock(system, models->working_set.mutex);
     
-    models->working_set.default_display_width = DEFAULT_DISPLAY_WIDTH;
-    models->working_set.default_minimum_base_display_width = DEFAULT_MINIMUM_BASE_DISPLAY_WIDTH;
-    
     // NOTE(allen): 
     global_history_init(&models->global_history);
     text_layout_init(models, &models->text_layouts);

4ed_buffer.cpp

@@ -725,11 +725,15 @@ buffer_layout(Arena *scratch, Arena *arena, Gap_Buffer *buffer, Interval_i64 ran
         i64 index = range.first;
         b32 first_of_the_line = true;
         
+        b32 consuming_newline_characters = false;
+        i64 newline_character_index = -1;
+        
         u8 *ptr = text.str;
         u8 *end_ptr = ptr + text.size;
         for (;ptr < end_ptr;){
             Character_Consume_Result consume = utf8_consume(ptr, (umem)(end_ptr - ptr));
             u32 render_codepoint = consume.codepoint;
+            b32 emit_newline = false;
             switch (consume.codepoint){
                 case '\t':
                 {
@@ -753,14 +757,26 @@ buffer_layout(Arena *scratch, Arena *arena, Gap_Buffer *buffer, Interval_i64 ran
                     first_of_the_line = false;
                 }break;
                 
+                case '\r':
+                {
+                    if (!consuming_newline_characters){
+                        consuming_newline_characters = true;
+                        newline_character_index = index;
+                    }
+                    if (ptr + 1 == end_ptr){
+                        emit_newline = true;
+                    }
+                    ptr += 1;
+                    index += 1;
+                }break;
+                
                 case '\n':
                 {
-                    f32 next_x = p.x + space_advance;
+                    if (!consuming_newline_characters){
-                    buffer_layout__write(arena, &list, index, ' ', 0,  Rf32(p, V2f32(next_x, line_y)));
+                        consuming_newline_characters = true;
-                    p.y = line_y;
+                        newline_character_index = index;
-                    p.x = 0.f;
+                    }
-                    line_y += line_height;
+                    emit_newline = true;
-                    first_of_the_line = true;
                     ptr += 1;
                     index += 1;
                 }break;
@@ -794,6 +810,14 @@ buffer_layout(Arena *scratch, Arena *arena, Gap_Buffer *buffer, Interval_i64 ran
                     first_of_the_line = false;
                 }break;
             }
+            if (emit_newline){
+                f32 next_x = p.x + space_advance;
+                buffer_layout__write(arena, &list, newline_character_index, ' ', 0,  Rf32(p, V2f32(next_x, line_y)));
+                p.y = line_y;
+                p.x = 0.f;
+                line_y += line_height;
+                first_of_the_line = true;
+            }
         }
     }
     

4ed_working_set.cpp

@@ -12,9 +12,6 @@
 internal void
 working_set_file_default_settings(Working_Set *working_set, Editing_File *file){
     block_zero_struct(&file->settings);
-    //file->settings.display_width = working_set->default_display_width;
-    //file->settings.minimum_base_display_width = working_set->default_minimum_base_display_width;
-    //file->settings.wrap_indicator = WrapIndicator_Show_At_Wrap_Edge;
 }
 
 ////////////////////////////////

4ed_working_set.h

@@ -41,9 +41,6 @@ struct Working_Set{
     System_Mutex mutex;
     System_Thread file_change_thread;
     
-    i32 default_display_width;
-    i32 default_minimum_base_display_width;
-    
     // TODO(allen): do(update clipboard system to exist fully in the custom layer)
     // NOTE(allen): These members have nothing to do with the working set or
     // the mutex that gaurds the other members.