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-rwxr-xr-xbin/shyaml251
1 files changed, 0 insertions, 251 deletions
diff --git a/bin/shyaml b/bin/shyaml
deleted file mode 100755
index 83171394..00000000
--- a/bin/shyaml
+++ /dev/null
@@ -1,251 +0,0 @@
-#!/usr/bin/env python
-
-## Note: to launch test, you can use:
-## python -m doctest -d shyaml.py
-## or
-## nosetests
-
-from __future__ import print_function
-
-import sys
-import yaml
-import os.path
-import re
-
-EXNAME = os.path.basename(sys.argv[0])
-
-
-def tokenize(s):
- r"""Returns an iterable in all subpart of a '.' separated string
-
- So:
-
- >>> list(tokenize('foo.bar.wiz'))
- ['foo', 'bar', 'wiz']
-
- this function has to deal with any type of data in the string. So it
- actually interprets the string. Characters with meaning are '.' and '\'.
- Both of these can be included in a token by quoting them with '\'.
-
- So dot of slashes can be contained in token:
-
- >>> print('\n'.join(tokenize(r'foo.dot<\.>.slash<\\>')))
- foo
- dot<.>
- slash<\>
-
- Notice that empty keys are also supported:
-
- >>> list(tokenize(r'foo..bar'))
- ['foo', '', 'bar']
-
- Given an empty string:
-
- >>> list(tokenize(r''))
- ['']
-
- And a None value:
-
- >>> list(tokenize(None))
- []
-
- """
- if s is None:
- raise StopIteration
- tokens = (re.sub(r'\\(\\|\.)', r'\1', m.group(0))
- for m in re.finditer(r'((\\.|[^.\\])*)', s))
- ## an empty string superfluous token is added after all non-empty string token:
- for token in tokens:
- if len(token) != 0:
- next(tokens)
- yield token
-
-
-def mget(dct, key, default=None):
- r"""Allow to get values deep in a dict with doted keys
-
- Accessing leaf values is quite straightforward:
-
- >>> dct = {'a': {'x': 1, 'b': {'c': 2}}}
- >>> mget(dct, 'a.x')
- 1
- >>> mget(dct, 'a.b.c')
- 2
-
- But you can also get subdict if your key is not targeting a
- leaf value:
-
- >>> mget(dct, 'a.b')
- {'c': 2}
-
- As a special feature, list access is also supported by providing a
- (possibily signed) integer, it'll be interpreted as usual python
- sequence access using bracket notation:
-
- >>> mget({'a': {'x': [1, 5], 'b': {'c': 2}}}, 'a.x.-1')
- 5
- >>> mget({'a': {'x': 1, 'b': [{'c': 2}]}}, 'a.b.0.c')
- 2
-
- Keys that contains '.' can be accessed by escaping them:
-
- >>> dct = {'a': {'x': 1}, 'a.x': 3, 'a.y': 4}
- >>> mget(dct, 'a.x')
- 1
- >>> mget(dct, r'a\.x')
- 3
- >>> mget(dct, r'a.y')
- >>> mget(dct, r'a\.y')
- 4
-
- As a consequence, if your key contains a '\', you should also escape it:
-
- >>> dct = {r'a\x': 3, r'a\.x': 4, 'a.x': 5, 'a\\': {'x': 6}}
- >>> mget(dct, r'a\\x')
- 3
- >>> mget(dct, r'a\\\.x')
- 4
- >>> mget(dct, r'a\\.x')
- 6
- >>> mget({'a\\': {'b': 1}}, r'a\\.b')
- 1
- >>> mget({r'a.b\.c': 1}, r'a\.b\\\.c')
- 1
-
- And even empty strings key are supported:
-
- >>> dct = {r'a': {'': {'y': 3}, 'y': 4}, 'b': {'': {'': 1}}, '': 2}
- >>> mget(dct, r'a..y')
- 3
- >>> mget(dct, r'a.y')
- 4
- >>> mget(dct, r'')
- 2
- >>> mget(dct, r'b..')
- 1
-
- mget support also default value if the key is not found:
-
- >>> mget({'a': 1}, 'b.y', default='N/A')
- 'N/A'
-
- but will complain if you are trying to get into a leaf:
-
- >>> mget({'a': 1}, 'a.y', default='N/A') # doctest: +ELLIPSIS
- Traceback (most recent call last):
- ...
- TypeError: 'int' object ...
-
- if the key is None, the whole dct should be sent back:
-
- >>> mget({'a': 1}, None)
- {'a': 1}
-
- """
- return aget(dct, tokenize(key), default)
-
-
-def aget(dct, key, default=None):
- r"""Allow to get values deep in a dict with iterable keys
-
- Accessing leaf values is quite straightforward:
-
- >>> dct = {'a': {'x': 1, 'b': {'c': 2}}}
- >>> aget(dct, ('a', 'x'))
- 1
- >>> aget(dct, ('a', 'b', 'c'))
- 2
-
- If key is empty, it returns unchanged the ``dct`` value.
-
- >>> aget({'x': 1}, ())
- {'x': 1}
-
- """
- key = iter(key)
- try:
- head = next(key)
- except StopIteration:
- return dct
- try:
- value = dct[int(head)] if isinstance(dct, list) else dct[head]
- except KeyError:
- return default
- return aget(value, key, default)
-
-
-def stderr(msg):
- sys.stderr.write(msg + "\n")
-
-
-def die(msg, errlvl=1, prefix="Error: "):
- stderr("%s%s" % (prefix, msg))
- sys.exit(errlvl)
-
-SIMPLE_TYPES = (str, int, float)
-COMPLEX_TYPES = (list, dict)
-
-
-def dump(value):
- return value if isinstance(value, SIMPLE_TYPES) \
- else yaml.dump(value, default_flow_style=False)
-
-def type_name(value):
- """Returns pseudo-YAML type name of given value."""
- return "struct" if isinstance(value, dict) else \
- "sequence" if isinstance(value, (tuple, list)) else \
- type(value).__name__
-
-def stdout(value):
- sys.stdout.write(value)
-
-def main(args):
- usage = """usage:
- %(exname)s {get-value{,-0},get-type,keys{,-0},values{,-0}} KEY DEFAULT
- """ % {"exname": EXNAME}
- if len(args) == 0:
- die(usage, errlvl=0, prefix="")
- action = args[0]
- key_value = None if len(args) == 1 else args[1]
- default = args[2] if len(args) > 2 else ""
- contents = yaml.load(sys.stdin)
- try:
- value = mget(contents, key_value, default)
- except IndexError:
- die("list index error in path %r." % key_value)
- except (KeyError, TypeError):
- die("invalid path %r." % key_value)
-
- tvalue = type_name(value)
- termination = "\0" if action.endswith("-0") else "\n"
-
- if action == "get-value":
- print(dump(value), end='')
- elif action in ("get-values", "get-values-0"):
- if isinstance(value, dict):
- for k, v in value.iteritems():
- stdout("%s%s%s%s" % (dump(k), termination,
- dump(v), termination))
- elif isinstance(value, list):
- for l in value:
- stdout("%s%s" % (dump(l), termination))
- else:
- die("%s does not support %r type. "
- "Please provide or select a sequence or struct."
- % (action, tvalue))
- elif action == "get-type":
- print(tvalue)
- elif action in ("keys", "keys-0", "values", "values-0"):
- if isinstance(value, dict):
- method = value.keys if action.startswith("keys") else value.values
- for k in method():
- stdout("%s%s" % (dump(k), termination))
- else:
- die("%s does not support %r type. "
- "Please provide or select a struct." % (action, tvalue))
- else:
- die("Invalid argument.\n%s" % usage)
-
-
-if __name__ == "__main__":
- sys.exit(main(sys.argv[1:]))