diff options
Diffstat (limited to 'venv/lib/python3.11/site-packages/markdown_it/rules_inline/emphasis.py')
-rw-r--r-- | venv/lib/python3.11/site-packages/markdown_it/rules_inline/emphasis.py | 102 |
1 files changed, 102 insertions, 0 deletions
diff --git a/venv/lib/python3.11/site-packages/markdown_it/rules_inline/emphasis.py b/venv/lib/python3.11/site-packages/markdown_it/rules_inline/emphasis.py new file mode 100644 index 0000000..9a98f9e --- /dev/null +++ b/venv/lib/python3.11/site-packages/markdown_it/rules_inline/emphasis.py @@ -0,0 +1,102 @@ +# Process *this* and _that_ +# +from __future__ import annotations + +from .state_inline import Delimiter, StateInline + + +def tokenize(state: StateInline, silent: bool) -> bool: + """Insert each marker as a separate text token, and add it to delimiter list""" + start = state.pos + marker = state.src[start] + + if silent: + return False + + if marker not in ("_", "*"): + return False + + scanned = state.scanDelims(state.pos, marker == "*") + + for _ in range(scanned.length): + token = state.push("text", "", 0) + token.content = marker + state.delimiters.append( + Delimiter( + marker=ord(marker), + length=scanned.length, + token=len(state.tokens) - 1, + end=-1, + open=scanned.can_open, + close=scanned.can_close, + ) + ) + + state.pos += scanned.length + + return True + + +def _postProcess(state: StateInline, delimiters: list[Delimiter]) -> None: + i = len(delimiters) - 1 + while i >= 0: + startDelim = delimiters[i] + + # /* _ */ /* * */ + if startDelim.marker != 0x5F and startDelim.marker != 0x2A: + i -= 1 + continue + + # Process only opening markers + if startDelim.end == -1: + i -= 1 + continue + + endDelim = delimiters[startDelim.end] + + # If the previous delimiter has the same marker and is adjacent to this one, + # merge those into one strong delimiter. + # + # `<em><em>whatever</em></em>` -> `<strong>whatever</strong>` + # + isStrong = ( + i > 0 + and delimiters[i - 1].end == startDelim.end + 1 + # check that first two markers match and adjacent + and delimiters[i - 1].marker == startDelim.marker + and delimiters[i - 1].token == startDelim.token - 1 + # check that last two markers are adjacent (we can safely assume they match) + and delimiters[startDelim.end + 1].token == endDelim.token + 1 + ) + + ch = chr(startDelim.marker) + + token = state.tokens[startDelim.token] + token.type = "strong_open" if isStrong else "em_open" + token.tag = "strong" if isStrong else "em" + token.nesting = 1 + token.markup = ch + ch if isStrong else ch + token.content = "" + + token = state.tokens[endDelim.token] + token.type = "strong_close" if isStrong else "em_close" + token.tag = "strong" if isStrong else "em" + token.nesting = -1 + token.markup = ch + ch if isStrong else ch + token.content = "" + + if isStrong: + state.tokens[delimiters[i - 1].token].content = "" + state.tokens[delimiters[startDelim.end + 1].token].content = "" + i -= 1 + + i -= 1 + + +def postProcess(state: StateInline) -> None: + """Walk through delimiter list and replace text tokens with tags.""" + _postProcess(state, state.delimiters) + + for token in state.tokens_meta: + if token and "delimiters" in token: + _postProcess(state, token["delimiters"]) |