212 lines
7.6 KiB
Python
212 lines
7.6 KiB
Python
import re
|
||
import collections
|
||
from typing import List
|
||
|
||
BASE_ENVIRONMENT = {
|
||
'org-footnote-section': 'Footnotes',
|
||
'org-options-keywords': (
|
||
"ARCHIVE:",
|
||
"AUTHOR:",
|
||
"BIND:",
|
||
"CATEGORY:",
|
||
"COLUMNS:",
|
||
"CREATOR:",
|
||
"DATE:",
|
||
"DESCRIPTION:",
|
||
"DRAWERS:",
|
||
"EMAIL:",
|
||
"EXCLUDE_TAGS:",
|
||
"FILETAGS:",
|
||
"INCLUDE:",
|
||
"INDEX:",
|
||
"KEYWORDS:",
|
||
"LANGUAGE:",
|
||
"MACRO:",
|
||
"OPTIONS:",
|
||
"PROPERTY:",
|
||
"PRIORITIES:",
|
||
"SELECT_TAGS:",
|
||
"SEQ_TODO:",
|
||
"SETUPFILE:",
|
||
"STARTUP:",
|
||
"TAGS:"
|
||
"TITLE:",
|
||
"TODO:",
|
||
"TYP_TODO:",
|
||
"SELECT_TAGS:",
|
||
"EXCLUDE_TAGS:"
|
||
),
|
||
}
|
||
|
||
|
||
HEADLINE_RE = re.compile(r'^(?P<stars>\*+) (?P<spacing>\s*)(?P<line>.*)$')
|
||
KEYWORDS_RE = re.compile(r'^(?P<indentation>\s*)#\+(?P<key>[^:\[]+)(\[(?P<options>[^\]]*)\])?:(?P<spacing>\s*)(?P<value>.*)$')
|
||
PROPERTY_DRAWER_RE = re.compile(r'^(?P<indentation>\s*):PROPERTIES:(?P<end_indentation>\s*)$')
|
||
DRAWER_END_RE = re.compile(r'^(?P<indentation>\s*):END:(?P<end_indentation>\s*)$')
|
||
NODE_PROPERTIES_RE = re.compile(r'^(?P<indentation>\s*):(?P<key>[^+:]+)(?P<plus>\+)?:(?P<spacing>\s*)(?P<value>.*)$')
|
||
RAW_LINE_RE = re.compile(r'^\s*([^\s#:*]|$)')
|
||
BASE_TIME_STAMP_RE = r'(?P<year>\d{4})-(?P<month>\d{2})-(?P<day>\d{2}) (?P<dow>[^ ]+)( (?P<start_hour>\d{1,2}):(?P<start_minute>\d{1,2})(--(?P<end_hour>\d{1,2}):(?P<end_minute>\d{1,2}))?)?'
|
||
|
||
ACTIVE_TIME_STAMP_RE = re.compile(r'<{}>'.format(BASE_TIME_STAMP_RE))
|
||
INACTIVE_TIME_STAMP_RE = re.compile(r'\[{}\]'.format(BASE_TIME_STAMP_RE))
|
||
|
||
# BASE_TIME_RANGE_RE = (r'(?P<start_year>\d{4})-(?P<start_month>\d{2})-(?P<start_day>\d{2}) (?P<start_dow>[^ ]+)((?P<start_hour>\d{1,2}):(?P<start_minute>\d{1,2}))?',
|
||
# r'(?P<end_year>\d{4})-(?P<end_month>\d{2})-(?P<end_day>\d{2}) (?P<end_dow>[^ ]+)((?P<end_hour>\d{1,2}):(?P<end_minute>\d{1,2}))?')
|
||
|
||
Headline = collections.namedtuple('Headline', ('start_line', 'depth',
|
||
'keyword_start', 'keyword',
|
||
'priority_start', 'priority',
|
||
'title_start', 'title',
|
||
'tags_start', 'tags',
|
||
'content',
|
||
'children',
|
||
))
|
||
|
||
Property = collections.namedtuple('Property', ('name', 'value', 'options'))
|
||
TimeRange = collections.namedtuple('TimeRange', ('start_time', 'end_time'))
|
||
Timestamp = collections.namedtuple('Timestamp', ('year', 'month', 'day', 'dow', 'hour', 'minute'))
|
||
|
||
|
||
def parse_org_time(value):
|
||
if m := ACTIVE_TIME_STAMP_RE.match(value):
|
||
active = True
|
||
elif m := INACTIVE_TIME_STAMP_RE.match(value):
|
||
active = False
|
||
else:
|
||
return None
|
||
|
||
if m.group('end_hour'):
|
||
return TimeRange(Timestamp(int(m.group('year')), int(m.group('month')), int(m.group('day')), m.group('dow'), int(m.group('start_hour')), int(m.group('start_minute'))),
|
||
Timestamp(int(m.group('year')), int(m.group('month')), int(m.group('day')), m.group('dow'), int(m.group('end_hour')), int(m.group('end_minute'))))
|
||
return Timestamp(int(m.group('year')), int(m.group('month')), int(m.group('day')), m.group('dow'), int(m.group('start_hour')), int(m.group('start_minute')))
|
||
|
||
|
||
class OrgDom:
|
||
def __init__(self, headlines, keywords):
|
||
self.headlines: List[Headline] = headlines
|
||
self.keywords: List[Property] = keywords
|
||
|
||
def serialize(self):
|
||
raise NotImplementedError()
|
||
|
||
|
||
## Querying
|
||
def getProperties(self):
|
||
return [
|
||
Property(name=kw.group('key'),
|
||
value=kw.group('value'),
|
||
options=kw.group('options'),
|
||
)
|
||
for kw in self.keywords
|
||
]
|
||
|
||
def getTopHeadlines(self):
|
||
return self.headlines
|
||
|
||
class OrgDomReader:
|
||
|
||
def __init__(self):
|
||
self.headlines: List[Headline] = []
|
||
self.keywords: List[Property] = []
|
||
self.headline_hierarchy: List[OrgDom] = []
|
||
|
||
def finalize(self):
|
||
return OrgDom(self.headlines, self.keywords)
|
||
|
||
## Construction
|
||
def add_headline(self, linenum: int, match: re.Match) -> int:
|
||
# Position reader on the proper headline
|
||
stars = match.group('stars')
|
||
depth = len(stars) - 1
|
||
|
||
headline = {
|
||
'linenum': linenum,
|
||
'orig': match,
|
||
'title': match.group('line'),
|
||
'contents': [],
|
||
'children': [],
|
||
'keywords': [],
|
||
'properties': [],
|
||
}
|
||
|
||
while (depth - 1) > len(self.headline_hierarchy):
|
||
# Introduce structural headlines
|
||
self.headline_hierarchy.append(None)
|
||
while depth < len(self.headline_hierarchy):
|
||
self.headline_hierarchy.pop()
|
||
|
||
if depth == 0:
|
||
self.headlines.append(headline)
|
||
else:
|
||
self.headline_hierarchy[-1]['children'].append(headline)
|
||
self.headline_hierarchy.append(headline)
|
||
|
||
|
||
def add_keyword_line(self, linenum: int, match: re.Match) -> int:
|
||
if len(self.headline_hierarchy) == 0:
|
||
self.keywords.append(match)
|
||
else:
|
||
self.headline_hierarchy[-1]['keywords'].append('match')
|
||
|
||
def add_raw_line(self, linenum: int, line: str) -> int:
|
||
print('>>', line)
|
||
pass
|
||
|
||
def add_property_drawer_line(self, linenum: int, match: re.Match) -> int:
|
||
self.current_drawer = self.headline_hierarchy[-1]['properties']
|
||
|
||
def add_drawer_end_line(self, linenum: int, match: re.Match) -> int:
|
||
self.current_drawer = None
|
||
|
||
def add_node_properties_line(self, linenum: int, match: re.Match) -> int:
|
||
key = match.group('key')
|
||
value = match.group('value').strip()
|
||
|
||
if (value.count('>--<') == 1) or (value.count(']--[') == 1):
|
||
# Time ranges with two different dates
|
||
# @TODO properly consider "=> DURATION" section
|
||
chunks = value.split('=').split('--')
|
||
as_time_range = parse_org_time(chunks[0], chunks[1])
|
||
if (as_time_range[0] is not None) and (as_time_range[1] is not None):
|
||
value = TimeRange(as_time_range[0], as_time_range[1])
|
||
elif as_time := parse_org_time(value):
|
||
value = as_time
|
||
|
||
self.current_drawer.append(Property(key, value, None))
|
||
|
||
def read(self, s, environment):
|
||
lines = s.split('\n')
|
||
reader = enumerate(lines)
|
||
|
||
for linenum, line in reader:
|
||
if m := RAW_LINE_RE.match(line):
|
||
# TODO: Parse line
|
||
self.add_raw_line(linenum, line)
|
||
elif m := HEADLINE_RE.match(line):
|
||
# TODO: Parse headline
|
||
self.add_headline(linenum, m)
|
||
elif m := KEYWORDS_RE.match(line):
|
||
# TODO: Parse line
|
||
self.add_keyword_line(linenum, m)
|
||
elif m := PROPERTY_DRAWER_RE.match(line):
|
||
# TODO: Parse line
|
||
self.add_property_drawer_line(linenum, m)
|
||
elif m := DRAWER_END_RE.match(line):
|
||
# TODO: Parse line
|
||
self.add_drawer_end_line(linenum, m)
|
||
elif m := NODE_PROPERTIES_RE.match(line):
|
||
# TODO: Parse line
|
||
self.add_node_properties_line(linenum, m)
|
||
else:
|
||
raise NotImplementedError('{}: ‘{}’'.format(linenum, line))
|
||
|
||
|
||
def loads(s, environment=BASE_ENVIRONMENT):
|
||
doc = OrgDomReader()
|
||
doc.read(s, environment)
|
||
return doc.finalize()
|
||
|
||
|
||
def load(f, environment=BASE_ENVIRONMENT):
|
||
return loads(f.read(), environment)
|