Ignore all control characters not handled

[st.git] / st.c

diff --git a/st.c b/st.c
index a64b84d..515dfb1 100644 (file)
--- a/st.c
+++ b/st.c
@@ -1663,7 +1663,7 @@ tputtab(bool forward) {
 
 void
 tputc(char *c, int len) {
-       char ascii = *c;
+       uchar ascii = *c;
 
        if(iofd != -1)
                write(iofd, c, len);
@@ -1792,8 +1792,6 @@ tputc(char *c, int len) {
                if(sel.bx != -1 && BETWEEN(term.c.y, sel.by, sel.ey))
                        sel.bx = -1;
                switch(ascii) {
-               case '\0': /* padding character, do nothing */
-                       break;
                case '\t':
                        tputtab(1);
                        break;
@@ -1818,13 +1816,15 @@ tputc(char *c, int len) {
                        term.esc = ESC_START;
                        break;
                default:
-                       if(IS_SET(MODE_WRAP) && term.c.state & CURSOR_WRAPNEXT)
-                               tnewline(1); /* always go to first col */
-                       tsetchar(c);
-                       if(term.c.x+1 < term.col)
-                               tmoveto(term.c.x+1, term.c.y);
-                       else
-                               term.c.state |= CURSOR_WRAPNEXT;
+                       if(ascii >= '\020' || term.c.attr.mode & ATTR_GFX) {
+                               if(IS_SET(MODE_WRAP) && term.c.state & CURSOR_WRAPNEXT)
+                                       tnewline(1); /* always go to first col */
+                               tsetchar(c);
+                               if(term.c.x+1 < term.col)
+                                       tmoveto(term.c.x+1, term.c.y);
+                               else
+                                       term.c.state |= CURSOR_WRAPNEXT;
+                       }
                }
        }
 }