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# Copyright 2014 Diamond Light Source Ltd. |
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# |
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# Licensed under the Apache License, Version 2.0 (the "License"); |
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# you may not use this file except in compliance with the License. |
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# You may obtain a copy of the License at |
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# |
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# http://www.apache.org/licenses/LICENSE-2.0 |
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# |
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# Unless required by applicable law or agreed to in writing, software |
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# distributed under the License is distributed on an "AS IS" BASIS, |
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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# See the License for the specific language governing permissions and |
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# limitations under the License. |
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""" |
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.. module:: docstring_parser |
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:platform: Unix |
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:synopsis: Parser for the docstring to interpret parameters and plugin info. |
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.. moduleauthor:: Nicola Wadeson <[email protected]> |
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""" |
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import sys |
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import re |
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import savu.plugins.loaders.utils.yaml_utils as yu |
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def find_synopsis(dclass): |
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""" |
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Finds the parameters list from the docstring |
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""" |
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mod_doc_lines = _get_doc_lines(sys.modules[dclass.__module__].__doc__) |
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return _parse_synopsis(mod_doc_lines) |
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def _parse_synopsis(mod_doc_lines): |
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syn_regexp = re.compile(r"^:synopsis: \s?(?P<synopsis>.*[^ ])$") |
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synopsis, idx2 = __find_regexp(syn_regexp, mod_doc_lines) |
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synopsis = "" if not synopsis else synopsis[0] + "." |
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return synopsis |
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def _get_doc_lines(doc): |
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if not doc: |
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return [""] |
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return [" ".join(l.strip(" .").split()) for l in doc.split("\n")] |
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def __find_regexp(regexp, str_list): |
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args = [regexp.findall(s) for s in str_list] |
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index = [i for i in range(len(args)) if args[i]] |
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args = [arg[0] for arg in args if len(arg)] |
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return args, index |
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def remove_new_lines(in_string): |
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"""Remove new lines between text""" |
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out_string = in_string |
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if out_string: |
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out_string = in_string.splitlines() |
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out_string = [l.strip() for l in out_string] |
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out_string = " ".join(out_string) |
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return out_string |
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def change_dtype_to_str(doc): |
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""" |
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Not all Savu dtypes are valid yaml syntax, this function |
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will convert them all to strings |
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param doc: the plugin tools docstring |
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:return: Altered yaml docstring with dtype values changed to be strings |
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""" |
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lines = doc.split('\n') |
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doc = "" |
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for i, l in enumerate(lines): |
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split = (l.split('dtype:', 1)) |
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if len(split) == 2: |
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dtype = split[1].lstrip().rstrip() |
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if dtype: |
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if not dtype[0] == "'" and not dtype[0] == '"': |
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l = l.replace(dtype, "'" + dtype + "'") |
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else: |
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print(f"Empty dtype entry for this plugin" |
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f" tools file on line {i}") |
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doc += l + "\n" |
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return doc |
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def load_yaml_doc(doc): |
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"""Load in the yaml format. Call yaml_utils.py |
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Parameters |
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---------- |
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lines : str |
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String of information |
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Returns |
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---------- |
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all_params: OrderedDict |
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Ordered dict of parameters |
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""" |
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all_params = "" |
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try: |
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all_params = yu.read_yaml_from_doc(doc) |
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except Exception as e: |
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print("\nError reading the yaml structure from Yaml Utils.\n %s" % e) |
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return all_params |
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