codekingpro/portable-devtools

1# HTML block2from __future__ import annotations3 4import logging5import re6 7from ..common.html_blocks import block_names8from ..common.html_re import HTML_OPEN_CLOSE_TAG_STR9from .state_block import StateBlock10 11LOGGER = logging.getLogger(__name__)12 13# An array of opening and corresponding closing sequences for html tags,14# last argument defines whether it can terminate a paragraph or not15HTML_SEQUENCES: list[tuple[re.Pattern[str], re.Pattern[str], bool]] = [16    (17        re.compile(r"^<(script|pre|style|textarea)(?=(\s|>|$))", re.IGNORECASE),18        re.compile(r"<\/(script|pre|style|textarea)>", re.IGNORECASE),19        True,20    ),21    (re.compile(r"^<!--"), re.compile(r"-->"), True),22    (re.compile(r"^<\?"), re.compile(r"\?>"), True),23    (re.compile(r"^<![A-Z]"), re.compile(r">"), True),24    (re.compile(r"^<!\[CDATA\["), re.compile(r"\]\]>"), True),25    (26        re.compile("^</?(" + "|".join(block_names) + ")(?=(\\s|/?>|$))", re.IGNORECASE),27        re.compile(r"^$"),28        True,29    ),30    (re.compile(HTML_OPEN_CLOSE_TAG_STR + "\\s*$"), re.compile(r"^$"), False),31]32 33 34def html_block(state: StateBlock, startLine: int, endLine: int, silent: bool) -> bool:35    LOGGER.debug(36        "entering html_block: %s, %s, %s, %s", state, startLine, endLine, silent37    )38    pos = state.bMarks[startLine] + state.tShift[startLine]39    maximum = state.eMarks[startLine]40 41    if state.is_code_block(startLine):42        return False43 44    if not state.md.options.get("html", None):45        return False46 47    if state.src[pos] != "<":48        return False49 50    lineText = state.src[pos:maximum]51 52    html_seq = None53    for HTML_SEQUENCE in HTML_SEQUENCES:54        if HTML_SEQUENCE[0].search(lineText):55            html_seq = HTML_SEQUENCE56            break57 58    if not html_seq:59        return False60 61    if silent:62        # true if this sequence can be a terminator, false otherwise63        return html_seq[2]64 65    nextLine = startLine + 166 67    # If we are here - we detected HTML block.68    # Let's roll down till block end.69    if not html_seq[1].search(lineText):70        while nextLine < endLine:71            if state.sCount[nextLine] < state.blkIndent:72                break73 74            pos = state.bMarks[nextLine] + state.tShift[nextLine]75            maximum = state.eMarks[nextLine]76            lineText = state.src[pos:maximum]77 78            if html_seq[1].search(lineText):79                if len(lineText) != 0:80                    nextLine += 181                break82            nextLine += 183 84    state.line = nextLine85 86    token = state.push("html_block", "", 0)87    token.map = [startLine, nextLine]88    token.content = state.getLines(startLine, nextLine, state.blkIndent, True)89 90    return True91