Full Text Search: The Key to Better Natural Language Queries for NoSQL in Node.js
Entry (position,txt,delim) Numentries (txt,delim) ParseCommandLine ()
The Entry function is usefull in many other areas. If you had a string that was "a/b/c/d" and you wanted to find out what the 3rd entry was you would use:
x$ = entry(3,"a/b/c/d","/") ' x$ would = "c". x% = NumEntries("a/b/c/d","/") ' x% = 4.
Run the ParaCommandLine from the main Form to set variables or actually run the various requests from the command$.
public Function Entry(byval Position as Integer, byval Txt as string, _ byval Delim as string) as string 'This function is the same as Progress' Entry function on error resume next Dim CurrentPosition as Integer, StrStart as Integer, _ StrEnd as Integer, StrCntr as Integer StrStart = 1 CurrentPosition = 1 Txt = Txt & " " 'add a space to the end of the string for StrCntr = 1 to len(Txt) If mid(Txt, StrCntr, 1) = Delim Or StrCntr = len(Txt) then StrEnd = StrCntr - 1 If StrEnd - StrStart < 0 then Entry = "" StrStart = StrCntr + 1 If CurrentPosition = Position then Exit Function else Entry = Trim(mid(Txt, StrStart, StrEnd - StrStart + 1)) If CurrentPosition = Position then Exit Function StrStart = StrCntr + 1 End If CurrentPosition = CurrentPosition + 1 End If next End Function public Function NumEntries(byval Txt as string, _ byval Delim as string) as Integer on error resume next Dim StrCntr, DelimCntr as Integer DelimCntr = 1 for StrCntr = 1 to len(Txt) If mid(Txt, StrCntr, 1) = Delim then DelimCntr = DelimCntr + 1 next StrCntr NumEntries = DelimCntr End Function
The following sub can be placed on any form (usually them main form/module).
public Type Parse Param1 as Integer Param2 as string Param3 as Boolean ... how ever many parameters you will have End Type public CommandLine as Parse public Sub ParseCommandLine() Dim ThisParam as Integer Dim CCntr as Integer Dim CVCntr as Integer Dim StartCmnd as Integer Dim ParamType as string Dim ParamValue as string on error resume next for ThisParam = 2 to NumEntries(Command$, "/") ParamType = Trim(Entry(1, Entry(ThisParam, _ Command$, "/"), " ")) 'Find the entire parameter value (upto next / or 'end of command$) ParamValue = "" for CCntr = 1 to len(Command$) If mid(Command$, CCntr, len(ParamType)) = ParamType then StartCmnd = CCntr for CVCntr = CCntr + len(ParamType) to len(Command$) + 1 If mid(Command$, CVCntr, 1) = "/" Or CVCntr = _ len(Command$) + 1 then ParamValue = Trim(mid(Command$, StartCmnd + len(ParamType), _ CVCntr - StartCmnd - len(ParamType))) Exit for End If next CVCntr Exit for End If next CCntr 'set variables Select Case UCase((ParamType)) Case "PARAM1" ' set THE CommandLine.xxxxx variable type here or ' perform operation Case "PARAM2" ' set THE CommandLine.xxxxx variable type here or ' perform operation Case "PARAM3" ' set THE CommandLine.xxxxx variable type here or ' perform operation ... HOW EVER MANY PARAMETERS YOU HAVE End Select next ThisParam End Sub