This is the start of building a HowTo? on searching in TWiki. I begin by extracting info from topics in Support and Codev.

Primary documentation with examples at FormattedSearch.

• Multiple searches in same topic: MultipleSearchesInSameTopic, HowtoMultipleSearchesInSameTopic
• Searching across lines: HowToRegExSearchOnMultipleLines
• Formatted search
  • Rendering order affecting search: CalcInsideSearch, FormattedSearchAndSpreadsheet, SearchAndSpreadSheetPluginProblem
  • Newlines in search formatting: DisplayingTextareaFormValuesInSearchTable
  • Embedded search on topics identified by primary search SinglePageSearch
  • Other: FormattedSearchOnDifferentWeb, RenderMultiLineTextAreaFormField, SpreadsheetFormulaAfterSearchNotWorking
• Embedding search without creating new page: EmbedSearchForm
• Custom summaries: ExcludeFirstSummaryLineFromFormattedSearch
• Regular expression examples: ExcludeSearchResultWithRegEx, HelpWithSearches (explains in words search parameter regex), Support.Support/SimilarWikiNamesInSearches (explains anchoring)
• Other search applications:
  • ExtendingSearchFunctionality
  • Embed a search into form creation to compute parts of the form ChangeRequest
• More tips
  • Watch out for form-within-form problem. One can always place a search from outside of the main form on a topic so that submit goes to the search, not the main topic.
  • Variable expansion is very subtle. You cannot probably not set a variable to a search, but you can include a topic containing the same search.
  • You can search for multiple hits on one page with a multiple="on" TWikiSearch
  • Search does not support skins for result page

Examples:

• Search with filters OpenBugs
• Embedding search without creating new page: EmbedSearchForm
• Creating a FAQ: TWikiFAQ
• Use formatting http://www.ku.edu/cgiwrap/kups/twiki/view
• Simple data bases: SearchBookTitles (needs BookTemplate), TWikiInstallation
• Restrict searched pages to children of some topic SearchUsingParent

Open issues: FormattedSearchLineContinuationConfusesSpreadsheet, EmptySearchAndSpreadsheetProblem

See also: RegexRegularExpressionsExplained, SearchDocumentation

The following appear to have been fixed but solutions are kept for reference: CommentPluginDoesNotWorkWithSEARCH