Add StringTree and friends

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

tools/python/jwutils/stree/serdes.py

@@ -0,0 +1,39 @@
+from StringTree import *
+from jwutils.log import *
+
+def parse(s): # export
+    slog(DEBUG, "parsing", s)
+    root = StringTree('', content='root')
+    sec = ''
+    for line in s.splitlines():
+        slog(DEBUG, "line=", line)
+        line = line.strip()
+        if not len(line):
+            continue
+        if line[0] == '[':
+            if line[-1] == ']':
+                sec = line[1:-1]
+            elif line[-1] == '[':
+                if len(sec):
+                    sec += '.'
+                sec += line[1:-1]
+            else:
+                raise Exception("failed to parse section line", line)
+            if root.get(sec) is None:
+                root.add(sec)
+            continue
+        elif line[0] == ']':
+            assert(len(sec) > 0)
+            sec = '.'.join(sec.split('.')[0:-1])
+            continue
+        assignment = line.split('=')
+        if len(assignment) != 2:
+            raise Exception("failed to parse assignment", line)
+        slog(DEBUG, "sec=", sec, "assignment=", assignment)
+        root.add(sec + '.' + cleanup_string(assignment[0]), quote(assignment[1]))
+    return root
+
+def read(path): # export
+    with open(path, 'r') as infile:
+        s = infile.read()
+    return parse(s)