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how to do a search on the name of the table

WTony

Hi,

I created few table with makeTable command. Now, I'm trying to find the table base on the name of the table. I don't have any clue how to get that information. I can use printstruct to get see the table name but I can't store that information to a variable.

MyTable1 = makeTable("Table1")

MyTable2 = makeTable("Table2")

MyTable3 = makeTable("Table3")

how can I do a search by name ("Table1")

If I do printstruct(MyTable1), it show: "structure of type association table (table:Table1):"

but I can't extract that information

Any idea how can I get It.

Thanks for all the suggestion

Parents
  • Andrew Beckett

    I'm not really sure why you want to do this, because the "name" given as the first argument to makeTable is not very useful - all it affects is the "print name" of the table - it's not used for anything else. There's no requirement for it to be unique, so having code that distinguishes on it is not very useful. I'm not sure what you mean by "search on the name of the table" - there's no mechanism to search based on this name (because it doesn't need to be unique). The primary purpose is when debugging that you can get some idea of what kind of data you might have in the table if your code is producing multiple tables with different kinds of content.

    Now, if you really want to retrieve the table name from an instance of a table, you can do that:

    cadr(parseString(sprintf(nil "%L" MyTable2) ":"))

    This would return "Table2"

    Regards,

    Andrew.

  • WTony
    in reply to Andrew Beckett

    I have a procedure that create the table. and it return all the table created base on the file read. It can create 1 to 3 tables. 

    So when I call yhwReadFile() it can return:

    a = yhwReadFile()
    (table:TAP table:Pcell)

    a = yhwReadFile()
    (table:TAP table:Pcell table:prBoundary)

    a = yhwReadFile()
    (table:Pcell)

    so when I want to process those Table, I need first to know which table I'm processing.

    I wish that is more clear why I need to find which table is it.

    Thanks

    procedure(yhwReadFile()
      prog((lines Pcell_table TAP_table prB_table)
        if( yhwFile = infile("~/Porting2/port/txana_drv_hbridge_out2x_2to1_nostack.txt") then
        while(gets(line yhwFile)
          word = parseString(line " ")
          length(word)
          case( nthelem(1 word)
            ("Pcell"
              if(!tablep(Pcell_table) then
               Pcell_table=makeTable("Pcell")
              )
            )
            ("TAP"
              if(!tablep(TAP_table) then
                TAP_table=makeTable("TAP")
              )
            )
            ("prBoundary"
              if(!tablep(prB_table) then
                prB_table=makeTable("prBoundary")
              )
            )
            (t
            )
          )
        )
        )
      all_Table = list()
      if(tablep(prB_table) then
        all_Table = cons(prB_table all_Table)
      )
      if(tablep(Pcell_table) then
        all_Table = cons(Pcell_table all_Table)
      )
      if(tablep(TAP_table) then
        all_Table = cons(TAP_table all_Table)
      )
      return(all_Table)
     )
    )

Reply
  • WTony
    in reply to Andrew Beckett

    I have a procedure that create the table. and it return all the table created base on the file read. It can create 1 to 3 tables. 

    So when I call yhwReadFile() it can return:

    a = yhwReadFile()
    (table:TAP table:Pcell)

    a = yhwReadFile()
    (table:TAP table:Pcell table:prBoundary)

    a = yhwReadFile()
    (table:Pcell)

    so when I want to process those Table, I need first to know which table I'm processing.

    I wish that is more clear why I need to find which table is it.

    Thanks

    procedure(yhwReadFile()
      prog((lines Pcell_table TAP_table prB_table)
        if( yhwFile = infile("~/Porting2/port/txana_drv_hbridge_out2x_2to1_nostack.txt") then
        while(gets(line yhwFile)
          word = parseString(line " ")
          length(word)
          case( nthelem(1 word)
            ("Pcell"
              if(!tablep(Pcell_table) then
               Pcell_table=makeTable("Pcell")
              )
            )
            ("TAP"
              if(!tablep(TAP_table) then
                TAP_table=makeTable("TAP")
              )
            )
            ("prBoundary"
              if(!tablep(prB_table) then
                prB_table=makeTable("prBoundary")
              )
            )
            (t
            )
          )
        )
        )
      all_Table = list()
      if(tablep(prB_table) then
        all_Table = cons(prB_table all_Table)
      )
      if(tablep(Pcell_table) then
        all_Table = cons(Pcell_table all_Table)
      )
      if(tablep(TAP_table) then
        all_Table = cons(TAP_table all_Table)
      )
      return(all_Table)
     )
    )

Children
  • Andrew Beckett
    in reply to WTony

    Probably what I’d do is return an object wrapping the table rather than directly returning the table. This could be done very elegantly using the SKILL++ object system. For example:  

    defclass(yhwTable ()
      (
        (table @reader yhwGetTable @initform makeTable("theTable"))
      )
    )
    (defclass yhwPcellTable (yhwTable))
    (defclass yhwTAPTable (yhwTable))
    (defclass yhwPrBoundaryTable (yhwTable))
    (defmethod yhwProcessTable ((tableObj yhwPcellTable))
      let((table)
        table=yhwGetTable(tableObj)
        printf("I'm processing the PCell Table and it contains:\n")
        pprint(tableToList(table))
        newline()
      )
    )
    (defmethod yhwProcessTable ((tableObj yhwTAPTable))
      let((table)
        table=yhwGetTable(tableObj)
        printf("I'm processing the TAP Table and it contains:\n")
        pprint(tableToList(table))
        newline()
      )
    )

    You then can create the objects using:  

     Pcell_table=makeInstance(‘yhwPcellTable)  

    Having created the table wrapper object, you could then use either Pcell_table->table to retrieve that actual table inside the object, or yhwGetTable(Pcell_table) - take your pick.  

    As you can see, I’m defining a method specialised on the specific table type to do the processing - it will automatically call the right method based on the class of the object.  

    Regards,  

    Andrew.  

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