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vim-patch:8.1.1094: long line in tags file causes error

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Problem:    Long line in tags file causes error.
Solution:   Check for overlong line earlier. (Andy Massimino)

5209334c55
This commit is contained in:
Marco Hinz 2019-04-01 01:50:01 +02:00
parent 2a73549ee8
commit e05a47f68b
No known key found for this signature in database
GPG Key ID: 1C980A1B657B4A4F
2 changed files with 55 additions and 28 deletions
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52
src/nvim/tag.c
View File

@ -1527,36 +1527,32 @@ line_read_in:
}
parse_line:
/*
* Figure out where the different strings are in this line.
* For "normal" tags: Do a quick check if the tag matches.
* This speeds up tag searching a lot!
*/
if (orgpat.headlen
) {
if (vim_strchr(lbuf, NL) == NULL && !use_cscope) {
// Truncated line, ignore it. Has been reported for Mozilla JS with
// extremely long names.
if (p_verbose >= 5) {
verbose_enter();
MSG(_("Ignoring long line in tags file"));
verbose_leave();
}
if (state != TS_LINEAR) {
// Avoid getting stuck.
linear = true;
state = TS_LINEAR;
vim_fseek(fp, search_info.low_offset, SEEK_SET);
}
continue;
}
// Figure out where the different strings are in this line.
// For "normal" tags: Do a quick check if the tag matches.
// This speeds up tag searching a lot!
if (orgpat.headlen) {
tagp.tagname = lbuf;
tagp.tagname_end = vim_strchr(lbuf, TAB);
if (tagp.tagname_end == NULL)
{
if (vim_strchr(lbuf, NL) == NULL) {
/* Truncated line, ignore it. Has been reported for
* Mozilla JS with extremely long names. */
if (p_verbose >= 5) {
verbose_enter();
MSG(_("Ignoring long line in tags file"));
verbose_leave();
}
if (state != TS_LINEAR) {
/* Avoid getting stuck. */
linear = TRUE;
state = TS_LINEAR;
vim_fseek(fp, search_info.low_offset, SEEK_SET);
}
continue;
}
/* Corrupted tag line. */
line_error = TRUE;
if (tagp.tagname_end == NULL) {
// Corrupted tag line.
line_error = true;
break;
}

31
src/nvim/testdir/test_tagjump.vim
View File

@ -331,4 +331,35 @@ func Test_tagnr_recall()
call delete('Xtest.c')
endfunc
func Test_tag_line_toolong()
call writefile([
\ '1234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678 django/contrib/admin/templates/admin/edit_inline/stacked.html 16;" j line:16 language:HTML'
\ ], 'Xtags')
set tags=Xtags
let old_vbs = &verbose
set verbose=5
" ":tjump" should give "tag not found" not "Format error in tags file"
call assert_fails('tj /foo', 'E426')
try
tj /foo
catch /^Vim\%((\a\+)\)\=:E431/
call assert_report(v:exception)
catch /.*/
endtry
call assert_equal('Ignoring long line in tags file', split(execute('messages'), '\n')[-1])
call writefile([
\ '123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567 django/contrib/admin/templates/admin/edit_inline/stacked.html 16;" j line:16 language:HTML'
\ ], 'Xtags')
call assert_fails('tj /foo', 'E426')
try
tj /foo
catch /^Vim\%((\a\+)\)\=:E431/
call assert_report(v:exception)
catch /.*/
endtry
call assert_equal('Ignoring long line in tags file', split(execute('messages'), '\n')[-1])
call delete('Xtags')
let &verbose = old_vbs
endfunc
" vim: shiftwidth=2 sts=2 expandtab