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开源软件名称:zacharyvoase/jsonpipe开源软件地址:https://github.com/zacharyvoase/jsonpipe开源编程语言:Python 100.0%开源软件介绍:jsonpipeEveryone I know prefers to work with JSON over XML, but sadly there is a sore lack of utilities of the quality or depth of html-xml-utils and XMLStarlet for actually processing JSON data in an automated fashion, short of writing an ad hoc processor in your favourite programming language. jsonpipe is a step towards a solution: it traverses a JSON object and produces a simple, line-based textual format which can be processed by all your UNIX favourites like grep, sed, awk, cut and diff. It may also be valuable within programming languages---in fact, it was originally conceived as a way of writing simple test assertions against JSON output without coupling the tests too closely to the specific structure used. This implementation (which should be considered the reference) is written in Python. ExampleA $ echo '"Hello, World!"' | jsonpipe / "Hello, World!" $ echo 123 | jsonpipe / 123 $ echo 0.25 | jsonpipe / 0.25 $ echo null | jsonpipe / null $ echo true | jsonpipe / true $ echo false | jsonpipe / false The 'root' of the object tree is represented by a single Composite data structures use a hierarchical syntax, where individual keys/indices are children of the path to the containing object: $ echo '{"a": 1, "b": 2}' | jsonpipe / {} /a 1 /b 2 $ echo '["foo", "bar", "baz"]' | jsonpipe / [] /0 "foo" /1 "bar" /2 "baz" For an object or array, the right-hand column indicates the datatype, and will
be either The path syntax allows arbitrarily complex data structures: $ echo '[{"a": [{"b": {"c": ["foo"]}}]}]' | jsonpipe / [] /0 {} /0/a [] /0/a/0 {} /0/a/0/b {} /0/a/0/b/c [] /0/a/0/b/c/0 "foo" Caveat: Path SeparatorsBecause the path components are separated by $ echo '{"abc/def": 123}' | jsonpipe -s '☃' ☃ {} ☃abc/def 123 The Unicode snowman is chosen here because it's unlikely to occur as part of
the key in most JSON objects, but any character or string (e.g. jsonunpipeAnother useful part of the library is $ echo '{"a": 1, "b": 2}' | jsonpipe | jsonunpipe {"a": 1, "b": 2} jsonunpipe also supports incomplete information (such as you might get from grep), and will assume all previously-undeclared parts of a path to be JSON objects: $ echo "/a/b/c 123" | jsonunpipe {"a": {"b": {"c": 123}}} Python APISince jsonpipe is written in Python, you can import it and use it without having to spawn another process: >>> from jsonpipe import jsonpipe >>> for line in jsonpipe({"a": 1, "b": 2}): ... print line / {} /a 1 /b 2 Note that the >>> from simplejson import OrderedDict >>> obj = OrderedDict([('a', 1), ('b', 2), ('c', 3)]) >>> obj OrderedDict([('a', 1), ('b', 2), ('c', 3)]) >>> for line in jsonpipe(obj): ... print line / {} /a 1 /b 2 /c 3 A more general hint: if you need to parse JSON but maintain ordering for object
keys, use the >>> import simplejson >>> simplejson.loads('{"a": 1, "b": 2, "c": 3}', ... object_pairs_hook=simplejson.OrderedDict) OrderedDict([('a', 1), ('b', 2), ('c', 3)]) Of course, a Python implementation of jsonunpipe also exists: >>> from jsonpipe import jsonunpipe >>> jsonunpipe(['/\t{}', '/a\t123']) {'a': 123} You can pass a >>> jsonunpipe(['/\t{}', '/a\t123', '/b\t456'], ... decoder=simplejson.JSONDecoder( ... object_pairs_hook=simplejson.OrderedDict)) OrderedDict([('a', 123), ('b', 456)]) Installationjsonpipe is written in Python, so is best installed using pip install jsonpipe Note that it requires Python v2.5 or later (simplejson only supports 2.5+). (Un)licenseThis is free and unencumbered software released into the public domain. Anyone is free to copy, modify, publish, use, compile, sell, or distribute this software, either in source code form or as a compiled binary, for any purpose, commercial or non-commercial, and by any means. In jurisdictions that recognize copyright laws, the author or authors of this software dedicate any and all copyright interest in the software to the public domain. We make this dedication for the benefit of the public at large and to the detriment of our heirs and successors. We intend this dedication to be an overt act of relinquishment in perpetuity of all present and future rights to this software under copyright law. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. For more information, please refer to <http://unlicense.org/> |
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