Improve the code.
Add inner joins where they are missing. Tok from hook_search_execute.
Add "n.status = 1" as defined in core search module.
Book Search: Search results 10 per page and searchExpression included wrong index.
Use book_child_type to index only the right node types.
Create index from book_child_type only.
First version of book_search separate index. Previously used node search index.
Function comments related coding standard fixes.
There must be exactly one blank line after the file comment.
Doc comment short description must be on a single line, further text should be a separate paragraph.
Fix some coding standard issues.
Issue #1298312 by Ayesh,akalata: Patch for the start of a D7 version.
Stripping CVS keywords
Initial commit of Book Search, a module that defines a book search tab on the search form and a current book search block.
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