Current File : //lib/python3/dist-packages/markdown_it/rules_inline/fragments_join.py
from .state_inline import StateInline
def fragments_join(state: StateInline) -> None:
"""
Clean up tokens after emphasis and strikethrough postprocessing:
merge adjacent text nodes into one and re-calculate all token levels
This is necessary because initially emphasis delimiter markers (``*, _, ~``)
are treated as their own separate text tokens. Then emphasis rule either
leaves them as text (needed to merge with adjacent text) or turns them
into opening/closing tags (which messes up levels inside).
"""
level = 0
maximum = len(state.tokens)
curr = last = 0
while curr < maximum:
# re-calculate levels after emphasis/strikethrough turns some text nodes
# into opening/closing tags
if state.tokens[curr].nesting < 0:
level -= 1 # closing tag
state.tokens[curr].level = level
if state.tokens[curr].nesting > 0:
level += 1 # opening tag
if (
state.tokens[curr].type == "text"
and curr + 1 < maximum
and state.tokens[curr + 1].type == "text"
):
# collapse two adjacent text nodes
state.tokens[curr + 1].content = (
state.tokens[curr].content + state.tokens[curr + 1].content
)
else:
if curr != last:
state.tokens[last] = state.tokens[curr]
last += 1
curr += 1
if curr != last:
del state.tokens[last:]
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