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diff --git a/src/spellsuggest.c b/src/spellsuggest.c
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index 3de9ff2..5462583 100644
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--- a/src/spellsuggest.c
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+++ b/src/spellsuggest.c
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@@ -1200,7 +1200,7 @@ suggest_try_change(suginfo_T *su)
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// Check the maximum score, if we go over it we won't try this change.
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#define TRY_DEEPER(su, stack, depth, add) \
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- (stack[depth].ts_score + (add) < su->su_maxscore)
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+ (depth < MAXWLEN - 1 && stack[depth].ts_score + (add) < su->su_maxscore)
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/*
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* Try finding suggestions by adding/removing/swapping letters.
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@@ -1272,6 +1272,9 @@ suggest_trie_walk(
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char_u changename[MAXWLEN][80];
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#endif
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int breakcheckcount = 1000;
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+#ifdef FEAT_RELTIME
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+ proftime_T time_limit;
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+#endif
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int compound_ok;
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// Go through the whole case-fold tree, try changes at each node.
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@@ -1316,6 +1319,11 @@ suggest_trie_walk(
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sp->ts_state = STATE_START;
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}
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}
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+#ifdef FEAT_RELTIME
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+ // The loop may take an indefinite amount of time. Break out after five
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+ // sectonds. TODO: add an option for the time limit.
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+ profile_setlimit(5000, &time_limit);
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+#endif
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// Loop to find all suggestions. At each round we either:
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// - For the current state try one operation, advance "ts_curi",
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@@ -1350,7 +1358,8 @@ suggest_trie_walk(
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// At end of a prefix or at start of prefixtree: check for
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// following word.
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- if (byts[arridx] == 0 || n == (int)STATE_NOPREFIX)
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+ if (depth < MAXWLEN - 1
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+ && (byts[arridx] == 0 || n == (int)STATE_NOPREFIX))
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{
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// Set su->su_badflags to the caps type at this position.
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// Use the caps type until here for the prefix itself.
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@@ -2644,6 +2653,10 @@ suggest_trie_walk(
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{
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ui_breakcheck();
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breakcheckcount = 1000;
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+#ifdef FEAT_RELTIME
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+ if (profile_passed_limit(&time_limit))
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+ got_int = TRUE;
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+#endif
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}
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}
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}
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diff --git a/src/testdir/test_spell.vim b/src/testdir/test_spell.vim
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index a3a9621..35035a2 100644
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--- a/src/testdir/test_spell.vim
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+++ b/src/testdir/test_spell.vim
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@@ -768,6 +768,14 @@ func Test_spell_long_word()
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set nospell
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endfunc
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+func Test_spellsuggest_too_deep()
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+ " This was incrementing "depth" over MAXWLEN.
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+ new
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+ norm ?s000G00ý000000000000
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+ sil norm ..vzG................vvzG0 v z=
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+ bwipe!
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+endfunc
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+
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func LoadAffAndDic(aff_contents, dic_contents)
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set enc=latin1
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set spellfile=
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