diff options
Diffstat (limited to 'style.c')
-rw-r--r-- | style.c | 26 |
1 files changed, 16 insertions, 10 deletions
@@ -28,16 +28,18 @@ int style_parse(const struct grid_cell *defgc, struct grid_cell *gc, const char *in) { - const char delimiters[] = " ,"; - char tmp[32]; - int val; - size_t end; - u_char fg, bg, attr, flags; + struct grid_cell savedgc; + const char delimiters[] = " ,"; + char tmp[32]; + int val; + size_t end; + u_char fg, bg, attr, flags; if (*in == '\0') return (0); if (strchr(delimiters, in[strlen(in) - 1]) != NULL) return (-1); + memcpy(&savedgc, gc, sizeof savedgc); fg = gc->fg; bg = gc->bg; @@ -46,7 +48,7 @@ style_parse(const struct grid_cell *defgc, struct grid_cell *gc, do { end = strcspn(in, delimiters); if (end > (sizeof tmp) - 1) - return (-1); + goto error; memcpy(tmp, in, end); tmp[end] = '\0'; @@ -59,7 +61,7 @@ style_parse(const struct grid_cell *defgc, struct grid_cell *gc, defgc->flags & (GRID_FLAG_FG256|GRID_FLAG_BG256); } else if (end > 3 && strncasecmp(tmp + 1, "g=", 2) == 0) { if ((val = colour_fromstring(tmp + 3)) == -1) - return (-1); + goto error; if (*in == 'f' || *in == 'F') { if (val != 8) { if (val & 0x100) { @@ -87,16 +89,16 @@ style_parse(const struct grid_cell *defgc, struct grid_cell *gc, flags |= defgc->flags & GRID_FLAG_BG256; } } else - return (-1); + goto error; } else if (strcasecmp(tmp, "none") == 0) attr = 0; else if (end > 2 && strncasecmp(tmp, "no", 2) == 0) { if ((val = attributes_fromstring(tmp + 2)) == -1) - return (-1); + goto error; attr &= ~val; } else { if ((val = attributes_fromstring(tmp)) == -1) - return (-1); + goto error; attr |= val; } @@ -108,6 +110,10 @@ style_parse(const struct grid_cell *defgc, struct grid_cell *gc, gc->flags = flags; return (0); + +error: + memcpy(gc, &savedgc, sizeof *gc); + return (-1); } /* Convert style to a string. */ |