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# Process html entity - {, ¯, ", ...
import re
from ..common.entities import entities
from ..common.utils import fromCodePoint, isValidEntityCode
from .state_inline import StateInline
DIGITAL_RE = re.compile(r"^&#((?:x[a-f0-9]{1,6}|[0-9]{1,7}));", re.IGNORECASE)
NAMED_RE = re.compile(r"^&([a-z][a-z0-9]{1,31});", re.IGNORECASE)
def entity(state: StateInline, silent: bool) -> bool:
pos = state.pos
maximum = state.posMax
if state.src[pos] != "&":
return False
if pos + 1 >= maximum:
return False
if state.src[pos + 1] == "#":
if match := DIGITAL_RE.search(state.src[pos:]):
if not silent:
match1 = match.group(1)
code = (
int(match1[1:], 16) if match1[0].lower() == "x" else int(match1, 10)
)
token = state.push("text_special", "", 0)
token.content = (
fromCodePoint(code)
if isValidEntityCode(code)
else fromCodePoint(0xFFFD)
)
token.markup = match.group(0)
token.info = "entity"
state.pos += len(match.group(0))
return True
else:
if (match := NAMED_RE.search(state.src[pos:])) and match.group(1) in entities:
if not silent:
token = state.push("text_special", "", 0)
token.content = entities[match.group(1)]
token.markup = match.group(0)
token.info = "entity"
state.pos += len(match.group(0))
return True
return False