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"""Horizontal rule
At least 3 of these characters on a line * - _
"""
import logging
from ..common.utils import isStrSpace
from .state_block import StateBlock
LOGGER = logging.getLogger(__name__)
def hr(state: StateBlock, startLine: int, endLine: int, silent: bool) -> bool:
LOGGER.debug("entering hr: %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
try:
marker = state.src[pos]
except IndexError:
return False
pos += 1
# Check hr marker
if marker not in ("*", "-", "_"):
return False
# markers can be mixed with spaces, but there should be at least 3 of them
cnt = 1
while pos < maximum:
ch = state.src[pos]
pos += 1
if ch != marker and not isStrSpace(ch):
return False
if ch == marker:
cnt += 1
if cnt < 3:
return False
if silent:
return True
state.line = startLine + 1
token = state.push("hr", "hr", 0)
token.map = [startLine, state.line]
token.markup = marker * (cnt + 1)
return True