Patch 8.1.1387

[Bram Moolenaar]

Patch 8.1.1387
Problem: Calling prop_add() in an empty buffer doesn't work. (Dominique
Pelle)
Solution: Open the memline before adding a text property. (closes #4412)
Files: src/textprop.c, src/testdir/test_textprop.vim


*** ../vim-8.1.1386/src/textprop.c 2019-05-24 19:38:59.112545434 +0200
--- src/textprop.c 2019-05-24 20:35:24.489130483 +0200
***************
*** 12,17 ****
--- 12,18 ----
*
* 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()
***************
*** 238,243 ****
--- 239,247 ----
return;
}

+ if (buf->b_ml.ml_mfp == NULL)
+ ml_open(buf);
+
for (lnum = start_lnum; lnum <= end_lnum; ++lnum)
{
colnr_T col; // start column
***************
*** 327,333 ****

// 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)
return 0;

// Fetch the line to get the ml_line_len field updated.
--- 331,337 ----

// 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) || buf->b_ml.ml_mfp == NULL)
return 0;

// Fetch the line to get the ml_line_len field updated.
*** ../vim-8.1.1386/src/testdir/test_textprop.vim 2019-05-19 22:53:36.504914607 +0200
--- src/testdir/test_textprop.vim 2019-05-24 20:38:45.796002471 +0200
***************
*** 752,754 ****
--- 752,762 ----
" Same, but delete four columns
call RunTestVisualBlock(4, '02')
endfunc
+
+ " Adding a text property to a new buffer should not fail
+ func Test_textprop_empty_buffer()
+ call prop_type_add('comment', {'highlight': 'Search'})
+ new
+ call prop_add(1, 1, {'type': 'comment'})
+ close
+ endfunc
*** ../vim-8.1.1386/src/version.c 2019-05-24 19:38:59.116545403 +0200
--- src/version.c 2019-05-24 20:40:37.251376451 +0200
***************
*** 769,770 ****
--- 769,772 ----
{ /* Add new patch number below this line */
+ /**/
+ 1387,
/**/

--
How To Keep A Healthy Level Of Insanity:
18. When leaving the zoo, start running towards the parking lot,
yelling "run for your lives, they're loose!!"

/// Bram Moolenaar -- Br...@Moolenaar.net -- http://www.Moolenaar.net \\\
/// sponsor Vim, vote for features -- http://www.Vim.org/sponsor/ \\\
\\\ an exciting new programming language -- http://www.Zimbu.org ///
\\\ help me help AIDS victims -- http://ICCF-Holland.org ///