map read key problem

Cor · Apr 18, 2011

If key begins with space then space is automatically stripped off

see key 024

Now i have to put dummy char at begin and strip it off when reading key

Is this a feature of map?

B4X:

dim lickmap as map
dim str1 as string

bluesv1.dat contains
024=    0   0 2p0       4   4   2p058
025=-   0   0 2p0       4   4   2p058

lickMap=File.readmap(File.dirassets,"bluesv1.dat")

str1=lickMap.Get("024")

tabCanvas.DrawText(str1,18dip,48,tabFont,20,Colors.Blue,"LEFT")

Erel · Apr 19, 2011

I don't see this behavior.
Check this code for example which works as expected:

B4X:

    Dim s As String
    s = " 123"
    Dim m As Map
    m.Initialize
    m.Put(s,s)
    File.WriteMap(File.DirRootExternal, "1.txt", m)
    Log(m)
    m = File.ReadMap(File.DirRootExternal, "1.txt")
    Dim s2 As String
    s2 = m.Get(" 123")
    Log(s2.Length)
    Log(m)

Cor · Apr 19, 2011

Don't create txt with map.put

Just create with editor and save it as utf-8
then use only readmap

attached is a utf-8 text file

Erel · Apr 19, 2011

The easiest way to see the required format (.properties - Wikipedia, the free encyclopedia) is to create the file by saving it with File.WriteMap and then read the text file.

You need to escape the first space character with '\'.

Cor · Apr 19, 2011

This is only needed when we have a key with spaces.

I have values with spaces at front.

Cor · Apr 19, 2011

after done several tests, map is unuseable for loading tab notation style

\ = slide
and space are stripped off

I will find for another solution to read the text files

like below

B4X:

02u=              |2
021=                                
022=                                  
023=                      0   0     
024=/    0   0 2p0      4   4   2p0
025= 0h3   3       3 /5            
026=\3p2                                    
02d=     d u   d   u     u d u d

stevel05 · Apr 19, 2011

Hi Cor,

Not sure if this will help, but you could use an arbitrary character at the beginning of each row and strip it out on reading. Also you would have to change the keys of the non strings to sort in the correct order if that's important. I attach an example.

steve

Cor · Apr 19, 2011

Hello Steve,

Yes, i use that now,

I use now . at the beginning and replace after reading the map
e.g s to /

and do a replace in my code

B4X:

02u=.             |2
021=.                               
022=.                                     
023=.                     0   0     
024=.    01  0 2p0      4   4   2p0*
025=.0h3   3       3 /5            
026=.s3p2                                    
02d=.    d u   d   u     u d u d

map read key problem

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map read key problem

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