Same as forward_search, but moves backward.
match_end
will never be set to a TextIter located after
this, even if there is a possible match_start
before or at this
.
this |
a TextIter where the search begins |
str |
search string |
flags |
bitmask of flags affecting the search |
match_start |
return location for start of match, or null |
match_end |
return location for end of match, or null |
limit |
location of last possible |
whether a match was found |