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kilo.c

@@ -294,13 +294,28 @@ void editorRowDelChar(erow *row, int at) {
 
 void editorInsertChar(int c) {
   if (E.cy == E.numrows) {
-    editorAppendRow("", 0);
+    editorInsertRow(E.numrows, "", 0);
   }
 
   editorRowInsertChar(&E.row[E.cy], E.cx, c);
   E.cx++;
 }
 
+void editorInsertNewline() {
+  if (E.cx == 0) {
+    editorInsertRow(E.cy, "", 0);
+  } else {
+    erow *row = &E.row[E.cy];
+    editorInsertRow(E.cy + 1, &row->chars[E.cx], row->size - E.cx);
+    row = &E.row[E.cy];
+    row->size = E.cx;
+    row->chars[row->size] = '\0';
+    editorUpdateRow(row);
+  }
+  E.cy++;
+  E.cx = 0;
+}
+
 void editorDelChar() {
   if (E.cy == E.numrows) return;
   if (E.cx == 0 && E.cy == 0) return;
@@ -353,7 +368,7 @@ void editorOpen(char *filename) {
            (line[linelen - 1] == '\n' || line[linelen - 1] == '\r'))
       linelen--;
 
-    editorAppendRow(line, linelen);
+    editorInsertRow(E.numrows, line, linelen);
   }
   free(line);
   fclose(fp);
@@ -453,7 +468,7 @@ void editorProcessKeyPress() {
 
   switch (c) {
     case '\r':
-      // TODO
+      editorInsertNewline();
       break;
 
     case CTRL_KEY('q'):