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""" Atex heading (#, ##, ...) """
from __future__ import annotations
import logging
from ..common.utils import isStrSpace
from .state_block import StateBlock
LOGGER = logging.getLogger(__name__)
def heading(state: StateBlock, startLine: int, endLine: int, silent: bool) -> bool:
LOGGER.debug("entering heading: %s, %s, %s, %s", state, startLine, endLine, silent)
pos = state.bMarks[startLine] + state.tShift[startLine]
maximum = state.eMarks[startLine]
if state.is_code_block(startLine):
return False
ch: str | None = state.src[pos]
if ch != "#" or pos >= maximum:
return False
# count heading level
level = 1
pos += 1
try:
ch = state.src[pos]
except IndexError:
ch = None
while ch == "#" and pos < maximum and level <= 6:
level += 1
pos += 1
try:
ch = state.src[pos]
except IndexError:
ch = None
if level > 6 or (pos < maximum and not isStrSpace(ch)):
return False
if silent:
return True
# Let's cut tails like ' ### ' from the end of string
maximum = state.skipSpacesBack(maximum, pos)
tmp = state.skipCharsStrBack(maximum, "#", pos)
if tmp > pos and isStrSpace(state.src[tmp - 1]):
maximum = tmp
state.line = startLine + 1
token = state.push("heading_open", "h" + str(level), 1)
token.markup = "########"[:level]
token.map = [startLine, state.line]
token = state.push("inline", "", 0)
token.content = state.src[pos:maximum].strip()
token.map = [startLine, state.line]
token.children = []
token = state.push("heading_close", "h" + str(level), -1)
token.markup = "########"[:level]
return True
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