diff options
| -rw-r--r-- | bin/shotty.c | 28 |
1 files changed, 26 insertions, 2 deletions
diff --git a/bin/shotty.c b/bin/shotty.c index 9c523677..62b109d4 100644 --- a/bin/shotty.c +++ b/bin/shotty.c @@ -51,6 +51,7 @@ static struct Style def = { .fg = 7 }; static uint rows, cols; static uint y, x; +static bool insert; static struct Style style; static struct Cell *cells; @@ -65,6 +66,10 @@ static void clear(struct Cell *a, struct Cell *b) { } } +static void move(struct Cell *dst, struct Cell *src, uint len) { + memmove(dst, src, sizeof(*dst) * len); +} + static char updateNUL(wchar_t ch) { switch (ch) { case BS: if (x) x--; return NUL; @@ -82,7 +87,14 @@ static char updateNUL(wchar_t ch) { warnx("unhandled \\u%X", ch); return NUL; } + if (x + width > cols) { + warnx("cannot fit '%lc'", ch); + return NUL; + } + if (insert) { + move(cell(y, x + width), cell(y, x), cols - x - width); + } cell(y, x)->style = style; cell(y, x)->ch = ch; @@ -177,8 +189,20 @@ static char updateCSI(wchar_t ch) { clear(a, b); } - break; case SM: // ignore - break; case RM: // ignore + break; case SM: { + if (dec) break; + switch (ps[0]) { + break; case 4: insert = true; + break; default: warnx("unhandled SM %u", ps[0]); + } + } + break; case RM: { + if (dec) break; + switch (ps[0]) { + break; case 4: insert = false; + break; default: warnx("unhandled RM %u", ps[0]); + } + } break; case SGR: { if (ps[0] == 38 && ps[1] == 5) { |