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get_search_region_from_search_nodes: add comment

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Document why we add pattern_len to doclen.
This commit is contained in:
Miciah Dashiel Butler Masters 2008-12-27 12:38:51 +00:00
parent 812c4bafc1
commit bd752e95ad
1 changed files with 3 additions and 0 deletions
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src/viewer/text/search.c
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@ -283,6 +283,9 @@ get_search_region_from_search_nodes(struct search *s1, struct search *s2,
UCHAR *doc;
int i;
/* We must include @a pattern_len in this expression because get_range
* caps the end of the search region, @a s2, to the length of the
* document minus the length of the search pattern. */
*doclen = s2 - s1 + pattern_len;
if (!*doclen) return NULL;