Attempt to support parsing full lines into StringTree

This commit tries to add support for the

  [section]
  first line
  second line

syntax, i.e. non-assignments, without equal sign. Half-baked, but
still better than before. Also support some more Python 3, i.e.
dict.items() instead of iteritems()

Signed-off-by: Jan Lindemann <jan@janware.com>

tools/python/jwutils/stree/StringTree.py

@@ -48,7 +48,7 @@ class StringTree: # export
     #    regex ( content = regex, children = [ '[ \n\t\r]+' ] )
     #      '[ \n\t\r]+)' ( content = '\n\t\r]+)', children = [] )
 
-    def __set(self, path_, content):
+    def __set(self, path_, content, split=True):
         logcontent = "not-yet"
         if hasattr(self, "content"):
             logcontent = self.content
@@ -58,7 +58,7 @@ class StringTree: # export
             slog(DEBUG, " -- content = >" + str(content) + "<, self.content = >" + str(self.content) + "<")
             return self
         path = cleanup_string(path_)
-        components = path.split('.')
+        components = path.split('.') if split else [ path ]
         l = len(components)
         if len(path) == 0 or l == 0:
             assert self.content is None
@@ -96,14 +96,14 @@ class StringTree: # export
         caller = kwargs['caller'] if 'caller' in kwargs.keys() else get_caller_pos(1)
         slog(prio, '|' + (' ' * indent) + str(self.content), caller=caller)
         indent += 2
-        for name, child in self.children.iteritems():
+        for name, child in self.children.items():
             child.__dump(prio, indent=indent, caller=caller)
 
     def keys(self):
         return self.children.keys()
 
-    def iteritems(self):
-        return self.children.iteritems()
+    def items(self):
+        return self.children.items()
 
     def set_content(self, content):
         if content is None:
@@ -113,9 +113,9 @@ class StringTree: # export
             raise Exception("Tried to set empty content")
         self.content = content
 
-    def add(self, path, content = None):
-        slog(DEBUG, "adding", content, "at", path, "to", self.content)
-        return self.__set(path, content)
+    def add(self, path, content = None, split = True):
+        slog(DEBUG, "adding >{}< at >{}< to >{}<".format(content, path, self.content))
+        return self.__set(path, content, split)
 
     def get(self, path_):
         slog(DEBUG, "looking for", path_, "in", self.content)

tools/python/jwutils/stree/serdes.py

@@ -1,4 +1,4 @@
-from StringTree import *
+from jwutils.stree.StringTree import *
 from jwutils.log import *
 
 def _cleanup_line(line):
@@ -20,7 +20,7 @@ def _cleanup_line(line):
         return r[1:-1]
     return r
 
-def parse(s): # export
+def parse(s, allow_full_lines=True): # export
     slog(DEBUG, "parsing", s)
     root = StringTree('', content='root')
     sec = ''
@@ -57,9 +57,13 @@ def parse(s): # export
                 continue
             rhs += c
 
+        split = True
         if rhs is None:
+            if not allow_full_lines:
                 raise Exception("failed to parse assignment", line)
-        root.add(sec + '.' + cleanup_string(lhs), cleanup_string(rhs))
+            rhs = 'empty'
+            split = False
+        root.add(sec + '.' + cleanup_string(lhs), cleanup_string(rhs), split=split)
     return root
 
 def read(path): # export