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On 2/5/14, 5:15 AM, Honza wrote: > I still wander how exactly can be FSW used for searching and ordering > signs. > Please can you show me? > Hi Honza, Sorting ===== Sorting is done using any basic string comparison. All applications, tools, and programming languages will sort the FSW strings automatically to the order of the ISWA 2010. Not all signs can be sorted because an optional prefix is required. The prefix is a temporal spelling of the symbols used in 2-dimensional space. Further reading: http://tools.ietf.org/html/draft-slevinski-signwriting-text-02#section-2.2 Terms for Sorting http://signpuddle.net/wiki/index.php/MSW:Sorting_Terminology Searching ======= Searching is based on regular expressions and more complicated. Formal SignWriting (FSW) is closely related to the query language (QSW). Any FSW string can be converted to a query string by replacing the optional prefix, lane marker, and preprocessed max coordinate with the letter "Q". FSW: AS10000M508x515S10000493x485 QSW: QS10000493x485 The coordinates in the query string indicate spatial searching for the particular symbol in 2-dimensional space. Spatial searching defaults to a variance of 10. The variance can be added at the end of a query string. QSW: QS10000493x485V10 If we remove the coordinate, we will have a general search for any sign that uses the symbol regardless of position. QSW: QS10000 The last 2 digits of the symbol key indicate fill and rotation. We can widen our searching by replacing those 2 digits with "u" for unknown. QSW: QS100uu The query language can not be used directly, but must be converted into one or more regular expressions by a processor. Two functions are required to perform this transformation: range2regex and query2regex. Both of these functions are implemented in the SignWriting Icon Server in the "fsw.php" file. https://github.com/Slevinski/swis/blob/master/fsw.php The regular expressions are many times longer than the query string itself. Over 1 million tests were used to verify the accuracy of the auto-generated regular expressions. The regular expressions, once generated, and be used in any application, tool, or programming language that supports regular expressions. Further reading: http://tools.ietf.org/html/draft-slevinski-signwriting-text-02#section-3.2 Query Language http://signpuddle.net/wiki/index.php/MSW:Formal_SignWriting#9.B._Query_String Hope that helps, -Steve ________________________________________________ SIGNWRITING LIST INFORMATION Valerie Sutton SignWriting List moderator [log in to unmask] Post Messages to the SignWriting List: [log in to unmask] SignWriting List Archives & Home Page http://www.signwriting.org/forums/swlist Join, Leave or Change How You Receive SW List Messages http://listserv.valenciacollege.edu/cgi-bin/wa?SUBED1=SW-L&A=1