OpenEuphoria

Re: "dumping" a map

• Posted by cjnwl 3 months ago
• 837 views

With some global variables and a couple of wrapper functions :

-- map investigation 
 
include std/io.e 
include std/map.e 
 
 
integer  indent  = 4       -- spaces per sub-level 
sequence m_      = "m_"    -- submap indicator 
sequence prefix  = ">> "   -- prefix before submap name 
sequence postfix = " >"    -- postfix after submap name 
 
map      tables = new()  -- map to hold tables data 
map      kids   = new()  -- map to hold kids 
map      smap   = new()  -- map to hold submap 
 
 
procedure map_dump(map m, integer offset) 
    integer s = map:size(m) 
    sequence k = map:keys(m) 
    sequence v = map:values(m) 
 
    for i = 1 to s do 
        if sequence(k[i]) and equal(m_, k[i][1..2]) then 
            writefln("[][][][]", {repeat(32, offset), prefix, k[i], postfix}) 
            map_dump(v[i], offset+indent) 
        else 
            writefln("[][] = []", {repeat(32, offset), k[i], v[i]}) 
        end if 
    end for 
    return 
end procedure 
 
procedure my_nested_put(map m, sequence s, object v) 
    integer l = length(s) 
    sequence temp = s 
    for i = 1 to l-1 do 
	temp[i] = m_ & temp[i] 
    end for 
    map:nested_put(m, temp, v) 
    return 
end procedure 
 
function my_nested_get(map m, sequence s) 
    integer l = length(s) 
    sequence temp = s 
    for i = 1 to l-1 do 
	temp[i] = m_ & temp[i] 
    end for 
    return map:nested_get(m, temp) 
end function 
    
 
map:put(tables, "id", 1) 
map:put(tables, "name", "aaa") 
 
map:put(kids, 1, "alice") 
map:put(kids, 2, "tom") 
map:put(kids, 3, "wendy") 
map:put(tables, "m_kids", kids) 
 
map:put(smap, "test", "test") 
map:put(smap, "description", "long description") 
map:put(kids, "m_test", smap) 
map:put(tables, "m_test_2", smap) 
 
map_dump(tables, 0) 
 
--map:nested_put(tables, {"m_kids", "m_test", "value"}, 125) 
--writefln("\n" & map:nested_get(tables, {"m_kids", "m_test", "description"}) & "\n") 
 
--map_dump(tables, 0) 
 
writefln("\n============\n") 
 
object users = map:new()  
map:nested_put( users, {"m_alice","id"}, "alice" )  
map:nested_put( users, {"m_alice","name"}, "Alice" )  
map:nested_put( users, {"m_alice","email"}, "alice@example.com" )  
map:nested_put( users, {"m_bob","id"}, "bob" )  
map:nested_put( users, {"m_bob","name"}, "Bob" )  
map:nested_put( users, {"m_bob","email"}, "bob@example.com" )  
map:nested_put( users, {"m_carol","id"}, "carol" )  
map:nested_put( users, {"m_carol","name"}, "Carol" )  
map:nested_put( users, {"m_carol","email"}, "carol@example.com" )  
 
my_nested_put(users, {"carol", "age"}, 25) 
 
map_dump(users, 0) 
 
writefln("\n" & my_nested_get(users, {"carol", "email"}))