From: Roberto E. Vargas Caballero Date: Wed, 26 Sep 2012 18:53:46 +0000 (+0200) Subject: Ignore all control characters not handled X-Git-Url: https://git.danieliu.xyz/?a=commitdiff_plain;h=a7d7e29300acade90f2025f0b85fa5eae06edb24;p=st.git Ignore all control characters not handled Taken from vt100 programmer manual: Control characters have values of \000 - \037, and \177. The control characters recognized by the VT100 are shown in Table 3-10. All other control codes cause no action to be taken. We have to take attention when we are using alternate charset, because in this cases they are not used as control characters. --- st.c | 20 ++++++++++---------- 1 file changed, 10 insertions(+), 10 deletions(-) --- diff --git a/st.c b/st.c index a64b84d..515dfb1 100644 --- 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; + } } } }