Created
April 25, 2022 03:48
-
-
Save doitian/a3176d78ca858b238b9ed10e9df1e4bb to your computer and use it in GitHub Desktop.
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
#!/usr/bin/env python3 | |
import fileinput | |
import re | |
from dataclasses import dataclass, field | |
ANNOTATION_RE = re.compile(r""" | |
“(.*)” | |
(\ \(\[.*\]\(.*\)\))+ | |
(?:\ (.*))? | |
""", re.VERBOSE) | |
TAG_RE = re.compile(r"\.([a-zA-Z0-9_-]+)\b") | |
QUOTED_RE = re.compile(r"\\([\\\[\]*_-])") | |
ACTION_RE = re.compile(r"#([ch])([1-9])(?:\s|$)") | |
@dataclass | |
class State: | |
action_type: str = '' | |
annotations: list[str] = field(default_factory=list) | |
links: str = '' | |
note: str = '' | |
lines: list[str] = field(default_factory=list) | |
def is_active(self): | |
return len(self.annotations) > 0 | |
def clear(self): | |
self.annotations = [] | |
self.links = '' | |
self.note = '' | |
self.lines = [] | |
def flush(self): | |
if len(self.annotations) > 0: | |
print(f'- {" ".join(self.annotations)}{self.links}') | |
note = self.note | |
if len(note) > 0: | |
print(f' {unquote(note.strip())}') | |
if note.startswith('#') and note.rstrip("\r\n").endswith(" "): | |
print() | |
lines = self.lines | |
self.clear() | |
for line in lines: | |
process(line, self) | |
def unquote(text): | |
return QUOTED_RE.sub(r'\1', text) | |
def process_heading_action(match_groups, heading_level, state): | |
annotation, links, note = match_groups | |
state.flush() | |
print(f'{"#" * (1 + heading_level)} {annotation}') | |
print(links.strip()) | |
print() | |
if note.strip() != '': | |
print(note.strip()) | |
print() | |
def process_concatenation_action(match_groups, index, state): | |
annotation, links, note = match_groups | |
note = note or '' | |
if index == 1: | |
state.flush() | |
state.annotations = [annotation] | |
state.links = links | |
state.note = note | |
state.lines = [] | |
else: | |
state.annotations.append(annotation) | |
if note.strip() != '': | |
state.lines.append(note) | |
def process_match(match, state): | |
annotation, links, note = match.groups() | |
annotation = unquote(annotation) | |
note = note or '' | |
if note.startswith('.'): | |
note = TAG_RE.sub(r'#\1', note) | |
action_match = ACTION_RE.match(note) | |
if action_match is not None: | |
action_type, action_arg = action_match.groups() | |
state.action_type = action_type | |
action_arg = int(action_arg) | |
match_groups = (annotation, links, note[3:].lstrip()) | |
if action_type == 'h': | |
process_heading_action(match_groups, action_arg, state) | |
else: | |
process_concatenation_action(match_groups, action_arg, state) | |
else: | |
state.action_type = '' | |
state.flush() | |
print(f'- {annotation}{links}') | |
if len(note) > 0: | |
print(f' {unquote(note.strip())}') | |
if note.startswith('#') and note.rstrip("\r\n").endswith(" "): | |
print() | |
def process(line, state): | |
match = ANNOTATION_RE.match(line) | |
if match is not None: | |
process_match(match, state) | |
elif state.is_active(): | |
state.lines.append(line) | |
elif line.rstrip("\r\n") == '': | |
print() | |
elif state.action_type == 'h': | |
print(unquote(line.rstrip())) | |
else: | |
print(f' {unquote(line.rstrip())}') | |
if __name__ == '__main__': | |
inputs = fileinput.input() | |
print(next(inputs)) | |
state = State() | |
for line in inputs: | |
process(line, state) | |
state.flush() |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment