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patch 8.1.1387: calling prop_add() in an empty buffer doesn't work

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Problem:    Calling prop_add() in an empty buffer doesn't work. (Dominique
            Pelle)
Solution:   Open the memline before adding a text property. (closes #4412)
This commit is contained in:
Bram Moolenaar
2019-05-24 20:41:55 +02:00
parent 18a4ba29ae
commit d79eef2eb1
3 changed files with 15 additions and 1 deletions
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6
src/textprop.c
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@@ -12,6 +12,7 @@
*
* TODO:
* - Adjust text property column and length when text is inserted/deleted.
* -> :substitute with multiple matches, issue #4427
* -> a :substitute with a multi-line match
* -> search for changed_bytes() from misc1.c
* -> search for mark_col_adjust()
@@ -238,6 +239,9 @@ f_prop_add(typval_T *argvars, typval_T *rettv UNUSED)
return;
}
if (buf->b_ml.ml_mfp == NULL)
ml_open(buf);
for (lnum = start_lnum; lnum <= end_lnum; ++lnum)
{
colnr_T col; // start column
@@ -327,7 +331,7 @@ get_text_props(buf_T *buf, linenr_T lnum, char_u **props, int will_change)
// Be quick when no text property types have been defined or the buffer,
// unless we are adding one.
if (!buf->b_has_textprop && !will_change)
if ((!buf->b_has_textprop && !will_change) || buf->b_ml.ml_mfp == NULL)
return 0;
// Fetch the line to get the ml_line_len field updated.