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"""
Parse link label
this function assumes that first character ("[") already matches
returns the end of the label
"""
from markdown_it.rules_inline import StateInline
def parseLinkLabel(state: StateInline, start: int, disableNested: bool = False) -> int:
labelEnd = -1
oldPos = state.pos
found = False
state.pos = start + 1
level = 1
while state.pos < state.posMax:
marker = state.src[state.pos]
if marker == "]":
level -= 1
if level == 0:
found = True
break
prevPos = state.pos
state.md.inline.skipToken(state)
if marker == "[":
if prevPos == state.pos - 1:
# increase level if we find text `[`,
# which is not a part of any token
level += 1
elif disableNested:
state.pos = oldPos
return -1
if found:
labelEnd = state.pos
# restore old state
state.pos = oldPos
return labelEnd