codekingpro/portable-devtools

1# lheading (---, ==)2import logging3 4from .state_block import StateBlock5 6LOGGER = logging.getLogger(__name__)7 8 9def lheading(state: StateBlock, startLine: int, endLine: int, silent: bool) -> bool:10    LOGGER.debug("entering lheading: %s, %s, %s, %s", state, startLine, endLine, silent)11 12    level = None13    nextLine = startLine + 114    ruler = state.md.block.ruler15    terminatorRules = ruler.getRules("paragraph")16 17    if state.is_code_block(startLine):18        return False19 20    oldParentType = state.parentType21    state.parentType = "paragraph"  # use paragraph to match terminatorRules22 23    # jump line-by-line until empty one or EOF24    while nextLine < endLine and not state.isEmpty(nextLine):25        # this would be a code block normally, but after paragraph26        # it's considered a lazy continuation regardless of what's there27        if state.sCount[nextLine] - state.blkIndent > 3:28            nextLine += 129            continue30 31        # Check for underline in setext header32        if state.sCount[nextLine] >= state.blkIndent:33            pos = state.bMarks[nextLine] + state.tShift[nextLine]34            maximum = state.eMarks[nextLine]35 36            if pos < maximum:37                marker = state.src[pos]38 39                if marker in ("-", "="):40                    pos = state.skipCharsStr(pos, marker)41                    pos = state.skipSpaces(pos)42 43                    # /* = */44                    if pos >= maximum:45                        level = 1 if marker == "=" else 246                        break47 48        # quirk for blockquotes, this line should already be checked by that rule49        if state.sCount[nextLine] < 0:50            nextLine += 151            continue52 53        # Some tags can terminate paragraph without empty line.54        terminate = False55        for terminatorRule in terminatorRules:56            if terminatorRule(state, nextLine, endLine, True):57                terminate = True58                break59        if terminate:60            break61 62        nextLine += 163 64    if not level:65        # Didn't find valid underline66        return False67 68    content = state.getLines(startLine, nextLine, state.blkIndent, False).strip()69 70    state.line = nextLine + 171 72    token = state.push("heading_open", "h" + str(level), 1)73    token.markup = marker74    token.map = [startLine, state.line]75 76    token = state.push("inline", "", 0)77    token.content = content78    token.map = [startLine, state.line - 1]79    token.children = []80 81    token = state.push("heading_close", "h" + str(level), -1)82    token.markup = marker83 84    state.parentType = oldParentType85 86    return True87