termptyops: do not wrap to left margin when already past right margin

Fix ech.sh test that detected the issue

src/bin/termptyops.c

@@ -177,10 +177,7 @@ termpty_text_append(Termpty *ty, const Eina_Unicode *codepoints, int len)
    Termcell *cells;
    int i, j;
    int origin = ty->termstate.left_margin;
-   int max_right = ty->w;
 
-   if (ty->termstate.right_margin)
-     max_right = ty->termstate.right_margin;
 
    /* TODO: have content_change_box*/
    termio_content_change(ty->obj, ty->cursor_state.cx, ty->cursor_state.cy, len);
@@ -188,8 +185,15 @@ termpty_text_append(Termpty *ty, const Eina_Unicode *codepoints, int len)
    cells = &(TERMPTY_SCREEN(ty, 0, ty->cursor_state.cy));
    for (i = 0; i < len; i++)
      {
+        int max_right = ty->w;
         Eina_Unicode g;
 
+        if (ty->termstate.right_margin &&
+            (ty->cursor_state.cx < ty->termstate.right_margin))
+          {
+             max_right = ty->termstate.right_margin;
+          }
+
         if (ty->termstate.wrapnext)
           {
              cells[max_right-1].att.autowrapped = 1;
@@ -228,6 +232,7 @@ termpty_text_append(Termpty *ty, const Eina_Unicode *codepoints, int len)
              ty->termstate.combining_strike = 0;
              cells[ty->cursor_state.cx].att.strike = 1;
           }
+
         cells[ty->cursor_state.cx].att.dblwidth = _termpty_is_dblwidth_get(ty, g);
         if (EINA_UNLIKELY((cells[ty->cursor_state.cx].att.dblwidth) && (ty->cursor_state.cx < (max_right - 1))))
           {
@@ -235,6 +240,7 @@ termpty_text_append(Termpty *ty, const Eina_Unicode *codepoints, int len)
              termpty_cell_codepoint_att_fill(ty, 0, cells[ty->cursor_state.cx].att,
                                              &(cells[ty->cursor_state.cx + 1]), 1);
           }
+
         if (ty->termstate.wrap)
           {
              unsigned char offset = 1;

tests/tests.results

@@ -65,4 +65,5 @@ sd.sh 4bfda7ec3e6192acab077de2bc270525
 decst8c.sh 0ea805e8f4c2626ce66c566a10548d0f
 ctc.sh d35eeacdb2e99f5ac8cc3c4e8d72f8b0
 tbc.sh d0216e4056e5ab1cb4d411b6d6074785
-ech.sh 6257d40c467d63cc7883c380357d87f7
+ech.sh 57a3ff127abbb3efa4082fab7de59970
+text_append_after_right_margin.sh 26b334188d39e2b12538a6ca91ca168c

tests/text_append_after_right_margin.sh

@@ -0,0 +1,41 @@
+#!/bin/sh
+# fill space with E
+printf '\033[69;1;1;25;80\044x'
+#set color
+printf '\033[46;31;3m'
+
+# set top/bottom margins:
+printf '\033[10;20r'
+# allow left/right margins
+printf '\033[?69h'
+# set left/right margins:
+printf '\033[5;15s'
+# fill margin with @
+printf '\033[64;10;5;20;15\044x'
+
+# move
+printf '\033[10;15H'
+printf '>>>>>>>'
+# move
+printf '\033[12;16H'
+printf '#######'
+
+# move
+printf '\033[12;70H'
+printf 'bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb'
+
+# move
+printf '\033[15;7H'
+printf 'zzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz'
+
+
+
+# set left/right margins:
+printf '\033[25;35s'
+# fill margin with @
+printf '\033[64;10;25;20;35\044x'
+# restrict cursor
+printf '\033[?6h'
+# move
+printf '\033[6;6H'
+printf 'gggggggggggggggggggggggggggggggggggggggggggggggggg'