initial commit

meme_otron/utils.py

@@ -0,0 +1,83 @@
+import re
+
+
+def read_key_safe(d, k, default=None):
+    """
+    TODO
+
+    :param (dict) d: source dict
+    :param (str) k: key to read
+    :param default: default value
+    :return:
+    """
+    if k in d:
+        return d[k]
+    else:
+        return default
+
+
+def read_key(d, k, default=None):
+    """
+    TODO
+
+    :param (dict) d: source dict
+    :param (str) k: key to read
+    :param default: default value
+    :return:
+    """
+    if k in d:
+        return d[k]
+    elif default is not None:
+        return default
+    else:
+        raise KeyError(k)
+
+
+def is_list_of(obj, types, length=None):
+    """
+    TODO
+
+    :param obj:
+    :param (list of type) types:
+    :param (int) length:
+    :rtype: bool
+    :return:
+    """
+    if not (isinstance(obj, list)):
+        return False
+    for item in obj:
+        found = False
+        for t in types:
+            if isinstance(item, t):
+                found = True
+                break
+        if not found:
+            return False
+    if length is not None and len(obj) != length:
+        return False
+    return True
+
+
+def is_url(s):
+    """
+    TODO
+
+    :param (str) s:
+    :rtype: bool
+    :return:
+    """
+    return False  # TODO
+
+
+args_regex = re.compile('"([^"]*)"|\'([^\']*)\'|([^ ]+)')
+
+
+def parse_arguments(s):
+    """
+    TODO
+
+    :param (str) s:
+    :rtype: list of str
+    :return:
+    """
+    return [[g for g in m if len(g) > 0][0] for m in args_regex.findall(s)]