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Allow lastgc to be NULL in grid_string_cells so find-window doesn't

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crash, problem reported by eugene everson.
This commit is contained in:
Nicholas Marriott
2013-03-25 10:07:40 +00:00
parent 35452b3e55
commit 304336a591
1 changed files with 7 additions and 5 deletions
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12
grid.c
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@@ -583,7 +583,7 @@ grid_string_cells_code(const struct grid_cell *lastgc,
/* Convert cells into a string. */
char *
grid_string_cells(struct grid *gd, u_int px, u_int py, u_int nx,
struct grid_cell **lastgc, int with_codes, int escape_c0)
struct grid_cell **lastgc, int with_codes, int escape_c0, int trim)
{
const struct grid_cell *gc;
static struct grid_cell lastgc1;
@@ -595,7 +595,7 @@ grid_string_cells(struct grid *gd, u_int px, u_int py, u_int nx,
GRID_DEBUG(gd, "px=%u, py=%u, nx=%u", px, py, nx);
if (*lastgc == NULL) {
if (lastgc != NULL && *lastgc == NULL) {
memcpy(&lastgc1, &grid_default_cell, sizeof lastgc1);
*lastgc = &lastgc1;
}
@@ -621,7 +621,7 @@ grid_string_cells(struct grid *gd, u_int px, u_int py, u_int nx,
data = ud.data;
size = ud.size;
if (escape_c0 && size == 1 && *data == '\\') {
data = "\\";
data = "\\\\";
size = 2;
}
@@ -638,8 +638,10 @@ grid_string_cells(struct grid *gd, u_int px, u_int py, u_int nx,
off += size;
}
while (off > 0 && buf[off - 1] == ' ')
off--;
if (trim) {
while (off > 0 && buf[off - 1] == ' ')
off--;
}
buf[off] = '\0';
return (buf);