markdown_it.rules_block.heading 源代码

""" Atex heading (#, ##, ...) """
import logging
from typing import Optional

from .state_block import StateBlock
from ..common.utils import isSpace

LOGGER = logging.getLogger(__name__)


[文档]def heading(state: StateBlock, startLine: int, endLine: int, silent: 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 it's indented more than 3 spaces, it should be a code block if state.sCount[startLine] - state.blkIndent >= 4: return False ch: Optional[int] = state.srcCharCode[pos] # /* # */ if ch != 0x23 or pos >= maximum: return False # count heading level level = 1 pos += 1 try: ch = state.srcCharCode[pos] except IndexError: ch = None # /* # */ while ch == 0x23 and pos < maximum and level <= 6: level += 1 pos += 1 try: ch = state.srcCharCode[pos] except IndexError: ch = None if level > 6 or (pos < maximum and not isSpace(ch)): return False if silent: return True # Let's cut tails like ' ### ' from the end of string maximum = state.skipSpacesBack(maximum, pos) tmp = state.skipCharsBack(maximum, 0x23, pos) # # if tmp > pos and isSpace(state.srcCharCode[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