Hi
When I generate spelling checker files using main.aap in
vim/runtime/spell/* with Vim-7.2.411 using Ubuntu-9.10,
I then get error E763 when trying to use the dictionaries.
Attached patch fixes it.
I initially saw this when creating the Breton dictionary but
I see this error for all other dictionaries that I tried to create:
- it.utf-8.spl
- es.utf-8.spl
- eo.utf-8.spl
- cy.utf-8.spl
- br.utf-8.spl
After generating the dictionary and copying it into ~/.vim/spell,
E763 happens when doing this for example:
vim -u NONE
:set spell
:setlocal spelllang=cy
The problem happens because spelltab.st_fold[] is of type 'char_u'
but init_spell_chartab() initializes it with utf_fold(i) which can return
a value greater than 256. So value gets truncated (which does not
make sense). It happens at least when i is 181=0xb5 since foldCase[]
table contains entry...
{0xb5,0xb5,-1,775},
... so utf_fold(181) returns 181 + 775 == 0x3BC which then becomes
0xBC = 188 when converted to char_u.
Attached patch fixes it but please verify it.
A few things a unclear to me though:
- why is a table of 256 char needed when using Unicode?
- why is spelltab.st_fold[] table initialized differently
whether clear_spell_chartab() or init_spell_chartab()
is called?
- why don't I get E763 with official Vim dictionary files,
but I got it (before my patch) when I generated dictionary
myself?
Cheers
-- Dominique
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diff -r 24100651daa9 src/spell.c
--- a/src/spell.c Tue Mar 23 18:22:46 2010 +0100
+++ b/src/spell.c Wed Apr 14 20:13:24 2010 +0200
@@ -9780,10 +9780,13 @@
{
for (i = 128; i < 256; ++i)
{
+ int f = utf_fold(i);
+ int u = utf_toupper(i);
+
+ spelltab.st_fold[i] = (f < 256) ? f : i;
+ spelltab.st_upper[i] = (u < 256) ? u : i;
spelltab.st_isu[i] = utf_isupper(i);
spelltab.st_isw[i] = spelltab.st_isu[i] || utf_islower(i);
- spelltab.st_fold[i] = utf_fold(i);
- spelltab.st_upper[i] = utf_toupper(i);
}
}
else
