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#module m_tree children, content

#modinit str _content
#define global new_tree( %1, %2 = "" ) newmod %1, m_tree, %2
    content = _content
    dimtype children, 5, 1
    return

#defcfunc get_tree_content modvar m_tree@
    return content

#modfunc get_tree_child str _content, var result
    f = -1
    foreach children
        if get_tree_content( children.cnt ) != _content : continue
        f = cnt
        break
    loop
    if f >= 0 : result = children.f : return
    new_tree children, _content
    result = children( length(children) - 1 )
    return

#modfunc _show_tree str indent
#define global show_tree( %1, %2 = "" ) _show_tree %1, %2
    if indent == "" {
        mes content
    } else {
        mes indent + "┗" + content
    }
    foreach children
        show_tree children.cnt, indent + "  "
    loop
    return

#global

paths = {"
    abc\\def
    abc\\def\\gh
    abc\\def\\ij
    abc\\jk\\lm
    de"}

new_tree tree, "ROOT"
paths_index = 0
repeat
    getstr path, paths, paths_index
    if strsize == 0 : break
    paths_index += strsize
    t = tree
    path_index = 0
    repeat
        getstr v, path, path_index, '\\'
        if strsize == 0 : break
        path_index += strsize
        get_tree_child t, v, t
    loop
loop

show_tree tree