From 39f37d7ffd80cad13bd8c765cb5f79180be17740 Mon Sep 17 00:00:00 2001
From: sloum <sloum@colorfield.space>
Date: Tue, 14 Jan 2020 21:22:28 -0800
Subject: [PATCH] Reworked multipliers and deletion

---
 hermes.c | 220 ++++++++++++++++++++++++++-----------------------------
 1 file changed, 104 insertions(+), 116 deletions(-)

diff --git a/hermes.c b/hermes.c
index 2b27ac5..ae107e8 100644
--- a/hermes.c
+++ b/hermes.c
@@ -1157,9 +1157,28 @@ void editorCommandKp(int c) {
     case 'k':
     case 'h':
     case 'l':
-      while (counter > 0) {
-        editorMoveCursor(c);
-        counter--;
+      {
+        int vx = E.cx;
+        int vy = E.cy;
+        while (counter > 0) {
+          editorMoveCursor(c);
+          counter--;
+        }
+        if (!deleting) break;
+        E.vx = vx;
+        E.vy = vy;
+        if (c == 'h' && E.vx > 0) E.vx--; 
+        if (c == 'j') {
+          E.vx = 0;
+          E.cx = E.row[E.cy].size - 1;
+        }
+        if (c == 'k') {
+          E.vx = E.row[E.vy].size - 1;
+          E.cx = 0;
+        }
+        if (c == 'l' && E.cx > 0) E.cx--;
+        editorDeleteSelection();
+        if (c == 'k' || c == 'j') editorDelRow(E.cy);
       }
       break;
     case '\033':
@@ -1169,6 +1188,7 @@ void editorCommandKp(int c) {
       {
         int c = editorReadKey();
         if (c) {
+          if (c == '\033') break;
           E.mode = InputMode;
           editorMoveCursor(ARROW_RIGHT);
           editorDeleteChar();
@@ -1179,67 +1199,42 @@ void editorCommandKp(int c) {
       }
       break;
     case 'g':
-      if (deleting) {
-        int totlen = 0;
-        int j;
-        for (j = 0; j <= E.cy; j++)
-          totlen += E.row[j].size + 1;
-
-        char *buf = malloc(totlen);
-        char *p = buf;
-
-        int count = E.cy;
-        E.cy = 0;
-        E.rowoff = 0;
-        while (count >= 0) {
-          memcpy(p, E.row[E.cy].chars, E.row[E.cy].size);
-          p += E.row[E.cy].size;
-          *p = '\r';
-          p++;
-
-          deleting = 1;
-          editorCommandKp('d');
-          count--;
-        }
-        editorUpdatePaste(buf, totlen);
-      } else {
+      {
+        int vx = E.cx;
+        int vy = E.cy;
         E.cy = 0;
         E.cx = 0;
         E.rowoff = 0;
+        if (!deleting) break;
+        E.vx = vx;
+        E.vy = vy;
+        int extraRow = 0;
+        E.vx--;
+        if (E.vx < 0) {
+          if (E.vy < 1) break;
+          E.vy--;
+          E.vx = E.row[E.vy].size - 1;
+          extraRow = 1;
+        }
+        editorDeleteSelection();
+        if (extraRow) editorDelRow(0);
       }
       break;
     case 'G':
-      if (deleting) {
-        int totlen = 0;
-        int j;
-        for (j = E.cy; j < E.numRows; j++)
-          totlen += E.row[j].size + 1;
-
-        char *buf = malloc(totlen);
-        char *p = buf;
-
-        int count = E.numRows - E.cy - 1;
-        if (count < 0) count = 0;
-        while (count >= 0) {
-          memcpy(p, E.row[E.cy].chars, E.row[E.cy].size);
-          p += E.row[E.cy].size;
-          *p = '\r';
-          p++;
-
-          deleting = 1;
-          editorCommandKp('d');
-          count--;
-        }
-        editorUpdatePaste(buf, totlen);
-      } else {
-        if (E.numRows > E.screenRows) {
-          E.cy = E.numRows - 1;
-          E.rowoff = E.numRows - E.screenRows - 1;
-        } else {
-          E.cy = E.numRows - 1;
-        }
+      {
+        int vx = E.cx;
+        int vy = E.cy;
+        E.cy = E.numRows - 1;
         E.cx = E.row[E.cy].size - 1;
         if (E.cx < 0) E.cx = 0;
+
+        if (!deleting) {
+          if (E.numRows > E.screenRows) E.rowoff = E.numRows - E.screenRows - 1;
+          break;
+        }
+        E.vx = vx;
+        E.vy = vy;
+        editorDeleteSelection();
       }
       break;
     case '\r':
@@ -1247,8 +1242,6 @@ void editorCommandKp(int c) {
         counter--;
         if (counter > E.numRows - 1) {
           E.cy = E.numRows - 1;
-        } else if (counter < 0) {
-          E.cy = 0;
         } else {
           E.cy = counter;
         }
@@ -1293,19 +1286,21 @@ void editorCommandKp(int c) {
         deleting++;
         return;
       } else {
-        int sz = E.row[E.cy].size + 1;
-        char *buf = malloc(sz);
-        strcpy(buf, E.row[E.cy].chars);
-        buf[sz - 1] = '\r';
-        editorUpdatePaste(buf, sz);
-        free(buf);
+        int start_x = E.cx;
+        int start_y = E.cy;
+        int end_x, end_y;
+        end_y = E.cy + counter;
+        if (end_y >= E.numRows) end_y = E.numRows - 1;
+        end_x = E.row[end_y].size - 1;
+        editorCopyRange(0, start_y, end_x, end_y);
         while (counter > 0) {
           editorDelRow(E.cy);
           if (E.cy == E.numRows) E.cy--;
           if (E.cy < 0) E.cy = 0;
-          // if (E.cx >= E.row[E.cy].size) E.cx = E.row[E.cy].size;
           counter--;
         }
+        E.cx = start_x;
+        if (E.cx >= E.row[E.cy].size) E.cx = E.row[E.cy].size - 1;
         break;
       }
     case '$':
@@ -1329,26 +1324,23 @@ void editorCommandKp(int c) {
       break;
     case 'w':
       {
-        int start_x = E.cx;
-        int start_y = E.cy;
+        int vx = E.cx;
+        int vy = E.cy;
         while (counter > 0) {
           editorNextWord();
           counter--;
         }
         if (!deleting) break;
-        int end_x, end_y;
+        E.vx = vx;
+        E.vy = vy;
         if (E.cx == 0) {
           if (E.cy == 0) break;
-          end_y = E.cy - 1;
-          end_x = E.row[E.cy].size - 1;
+          E.cy--;
+          E.cx = E.row[E.cy].size - 1;
         } else {
-          end_x = E.cx - 1;
-          end_y = E.cy;
-        }
-        editorCopyRange(start_x, start_y, end_x, end_y);
-        while (E.cx != start_x || E.cy != start_y) {
-          editorDeleteChar();
+          E.cx--;
         }
+        editorDeleteSelection();
         if (E.cx > E.row[E.cy].size - 1) E.cx = E.row[E.cy].size - 1;
       }
       break;
@@ -1378,54 +1370,50 @@ void editorCommandKp(int c) {
         break;
       }
     case 'b':
-      while (counter > 0) {
-        if (deleting) {
-          int start_x = E.cx;
-          int start_y = E.cy;
-          editorPrevWord();
-          int end_x = E.cx;
-          int end_y = E.cy;
-          E.cx = start_x;
-          E.cy = start_y;
-          editorUpdatePaste(&E.row[E.cy].chars[end_x], start_x - end_x);
-          while (E.cy != end_y || E.cx != end_x) {
-            editorDeleteChar();
-          }
-        } else {
-          editorPrevWord();
+      {
+        int start_x = E.cx;
+        int start_y = E.cy;
+        if (start_x > 0) {
+          start_x--;
+        } else if (start_y > 0) {
+          start_y--;
+          start_x = E.row[start_y].size - 1;
         }
-        counter--;
+        while (counter > 0) {
+          editorPrevWord();
+          counter--;
+        }
+        if (!deleting) break;
+
+        E.vx = start_x;
+        E.vy = start_y;
+        editorDeleteSelection();
       }
       break;
     case 'e':
-      while (counter > 0) {
-        if (deleting) {
-          int start_x = E.cx;
-          int start_y = E.cy;
-          editorEndOfWord();
-          editorUpdatePaste(&E.row[E.cy].chars[start_x], E.cx - start_x);
-          while (E.cy != start_y || E.cx != start_x) {
-            editorDeleteChar();
-          }
-          E.mode = InputMode;
-          editorMoveCursor(ARROW_RIGHT);
-          editorDeleteChar();
-          E.mode = CommandMode;
-          if (E.cx == E.row[E.cy].size) editorMoveCursor(ARROW_LEFT);
-        } else {
+      {
+        int vx = E.cx;
+        int vy = E.cy;
+        while (counter > 0) {
           editorEndOfWord();
+          counter--;
         }
-        counter--;
+        if (!deleting) break;
+        E.vx = vx;
+        E.vy = vy;
+        editorDeleteSelection();
       }
       break;
     case '^':
-      if (deleting) {
-        editorUpdatePaste(&E.row[E.cy].chars[0], E.cx);
-        while (E.cx > 0) {
-          editorDeleteChar();
-        }
-      } else {
+      {
+        int vx = E.cx;
         E.cx = 0;
+        if (deleting) {
+          E.vx = vx;
+          E.vy = E.cy;
+          if (E.vx > 0) E.vx--;
+          editorDeleteSelection();
+        }
       }
       break;
     case 'v':
@@ -1437,9 +1425,9 @@ void editorCommandKp(int c) {
       break;
     case 'V':
       if (E.mode == CommandMode) {
-        E.vx = 0;
+        E.vx = E.row[E.cy].size - 1;
         E.vy = E.cy;
-        E.cx = E.row[E.cy].size - 1;
+        E.cx = 0;
         E.mode = VisualMode;
       }
       break;