Whether the search is case sensitive.
Search by regular expressions with
[propertySearchSettings:
search-text] as the pattern.
A search string, or %NULL if the search is disabled.
If the regular expression search is enabled, [propertySearchSettings:
search-text] is
the pattern.
For a forward search, continue at the beginning of the buffer if no search occurrence is found. For a backward search, continue at the end of the buffer.
If %TRUE, a search match must start and end a word. The match can span multiple words.