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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,93 @@ | ||
| from typing import Dict, List | ||
| import re | ||
| from datetime import datetime | ||
| from lxml import etree | ||
|
|
||
| class XBRL(etree.ElementBase): | ||
| CONTEXT_REF_NOT_DATE = ["us-gaap", "srt", "dei"] | ||
|
|
||
| @classmethod | ||
| def clean_tag(cls, elem): | ||
| """ | ||
| Parse tag so | ||
| {http://fasb.org/us-gaap/2018-01-31}Assets | ||
| becomes | ||
| Assets | ||
| """ | ||
| elem.tag = elem.tag[elem.tag.find("}")+1:] | ||
|
|
||
| @classmethod | ||
| def parse_context_ref(cls, context_ref): | ||
| """ | ||
| Duration_1_1_2018_To_12_31_2018 becomes 2018-01-01 to 2018-12-31 | ||
| As_Of_12_31_2017 becomes 2017-12-31 | ||
| """ | ||
| context_ref_to_date_text = lambda s: datetime.strptime(s, "%m_%d_%Y").date().strftime("%Y-%m-%d") | ||
| if context_ref.startswith("Duration"): | ||
| if not any([val in context_ref for val in cls.CONTEXT_REF_NOT_DATE]): | ||
| from_date = context_ref_to_date_text(context_ref[len("DURATION")+1:context_ref.find("_To_")]) | ||
| to_date = context_ref_to_date_text(context_ref[context_ref.find("_To_")+4:]) | ||
| return {"from": from_date, "to": to_date} | ||
| else: | ||
| from_date = context_ref_to_date_text(context_ref[len("DURATION")+1:context_ref.find("_To_")]) | ||
| end_idx = min([context_ref.find(val) for val in cls.CONTEXT_REF_NOT_DATE if context_ref.find(val) > -1]) | ||
| to_date = context_ref_to_date_text(context_ref[context_ref.find("_To_")+4:end_idx-1]) | ||
| return {"from": from_date, "to": to_date} | ||
|
|
||
| elif context_ref.startswith("As_Of"): | ||
| if not any([val in context_ref for val in cls.CONTEXT_REF_NOT_DATE]): | ||
| return {"from": context_ref_to_date_text(context_ref[len("As_Of")+1:])} | ||
| else: | ||
| end_idx = min([context_ref.find(val) for val in cls.CONTEXT_REF_NOT_DATE if context_ref.find(val) > -1]) | ||
| from_date = context_ref_to_date_text(context_ref[len("As_Of")+1:end_idx-1]) | ||
| return {"from": from_date} | ||
|
|
||
| @property | ||
| def child(self): | ||
| return self.getchildren()[0] | ||
|
|
||
| @property | ||
| def relevant_children(self): | ||
| """ | ||
| Get children that are not `context` | ||
| """ | ||
| return [child for child in self.child.getchildren() if not isinstance(child, etree._Comment) and "context" not in child.tag] | ||
|
|
||
| @property | ||
| def relevant_children_parsed(self): | ||
| """ | ||
| Get children that are not `context`, `unit`, `schemaRef` | ||
| """ | ||
| children = [child for child in self.child.getchildren() if not isinstance(child, etree._Comment) and "context" not in child.tag and "unit" not in child.tag and "schemaRef" not in child.tag] | ||
| for elem in children: | ||
| XBRL.clean_tag(elem) | ||
| return children | ||
|
|
||
| class XBRLElement(etree.ElementBase): | ||
|
|
||
| @property | ||
| def child(self): | ||
| return self.getchildren()[0] | ||
|
|
||
| @property | ||
| def attrib(self) -> Dict: | ||
| return self.child.attrib | ||
|
|
||
| @property | ||
| def context_ref(self) -> Dict: | ||
| return XBRL.parse_context_ref(self.attrib["contextRef"]) if self.attrib.get("contextRef") else {} | ||
|
|
||
| @property | ||
| def name(self): | ||
| return ' '.join(re.findall('[A-Z][^A-Z]*', self.child.tag)) | ||
|
|
||
| @property | ||
| def value(self) -> str: | ||
| return self.child.text | ||
|
|
||
| def to_dict(self) -> Dict: | ||
| return { | ||
| "name": self.name, | ||
| "value": self.value, | ||
| "context_ref": self.context_ref | ||
| } |