wordBoundary     2460 third_party/sqlite/src/ext/fts1/fts1.c     iStart = wordBoundary(iStart, zDoc, nDoc, aMatch, nMatch, iCol);
wordBoundary     2474 third_party/sqlite/src/ext/fts1/fts1.c     iEnd = wordBoundary(iEnd, zDoc, nDoc, aMatch, nMatch, iCol);
wordBoundary     3486 third_party/sqlite/src/ext/fts2/fts2.c     iStart = wordBoundary(iStart, zDoc, nDoc, aMatch, nMatch, iCol);
wordBoundary     3500 third_party/sqlite/src/ext/fts2/fts2.c     iEnd = wordBoundary(iEnd, zDoc, nDoc, aMatch, nMatch, iCol);