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-rw-r--r--src/memline.c13
1 files changed, 10 insertions, 3 deletions
diff --git a/src/memline.c b/src/memline.c
index 19d037f9eb..99b9e9f2ea 100644
--- a/src/memline.c
+++ b/src/memline.c
@@ -2700,9 +2700,13 @@ ml_get_cursor_len(void)
colnr_T
ml_get_buf_len(buf_T *buf, linenr_T lnum)
{
- if (*ml_get_buf(buf, lnum, FALSE) == NUL)
+ char_u *line;
+
+ if (*(line = ml_get_buf(buf, lnum, FALSE)) == NUL)
return 0;
+ if (buf->b_ml.ml_line_textlen <= 0)
+ buf->b_ml.ml_line_textlen = (int)STRLEN(line) + 1;
return buf->b_ml.ml_line_textlen - 1;
}
@@ -2799,8 +2803,11 @@ errorret:
buf->b_ml.ml_line_ptr = (char_u *)dp + start;
buf->b_ml.ml_line_len = end - start;
#if defined(FEAT_BYTEOFF) && defined(FEAT_PROP_POPUP)
- if (buf->b_has_textprop)
- buf->b_ml.ml_line_textlen = (int)STRLEN(buf->b_ml.ml_line_ptr) + 1;
+ // Text properties come after a NUL byte, so ml_line_len should be
+ // larger than the size of textprop_T if there is any.
+ if (buf->b_has_textprop
+ && (size_t)buf->b_ml.ml_line_len > sizeof(textprop_T))
+ buf->b_ml.ml_line_textlen = 0; // call STRLEN() later when needed
else
#endif
buf->b_ml.ml_line_textlen = buf->b_ml.ml_line_len;