149 lines
4.0 KiB
Python
149 lines
4.0 KiB
Python
|
# Process 
|
||
|
|
from __future__ import annotations
|
||
|
|
|
||
|
|
from ..common.utils import isStrSpace, normalizeReference
|
||
|
|
from ..token import Token
|
||
|
|
from .state_inline import StateInline
|
||
|
|
|
||
|
|
|
||
|
|
def image(state: StateInline, silent: bool) -> bool:
|
||
|
|
label = None
|
||
|
|
href = ""
|
||
|
|
oldPos = state.pos
|
||
|
|
max = state.posMax
|
||
|
|
|
||
|
|
if state.src[state.pos] != "!":
|
||
|
|
return False
|
||
|
|
|
||
|
|
if state.pos + 1 < state.posMax and state.src[state.pos + 1] != "[":
|
||
|
|
return False
|
||
|
|
|
||
|
|
labelStart = state.pos + 2
|
||
|
|
labelEnd = state.md.helpers.parseLinkLabel(state, state.pos + 1, False)
|
||
|
|
|
||
|
|
# parser failed to find ']', so it's not a valid link
|
||
|
|
if labelEnd < 0:
|
||
|
|
return False
|
||
|
|
|
||
|
|
pos = labelEnd + 1
|
||
|
|
|
||
|
|
if pos < max and state.src[pos] == "(":
|
||
|
|
#
|
||
|
|
# Inline link
|
||
|
|
#
|
||
|
|
|
||
|
|
# [link]( <href> "title" )
|
||
|
|
# ^^ skipping these spaces
|
||
|
|
pos += 1
|
||
|
|
while pos < max:
|
||
|
|
ch = state.src[pos]
|
||
|
|
if not isStrSpace(ch) and ch != "\n":
|
||
|
|
break
|
||
|
|
pos += 1
|
||
|
|
|
||
|
|
if pos >= max:
|
||
|
|
return False
|
||
|
|
|
||
|
|
# [link]( <href> "title" )
|
||
|
|
# ^^^^^^ parsing link destination
|
||
|
|
start = pos
|
||
|
|
res = state.md.helpers.parseLinkDestination(state.src, pos, state.posMax)
|
||
|
|
if res.ok:
|
||
|
|
href = state.md.normalizeLink(res.str)
|
||
|
|
if state.md.validateLink(href):
|
||
|
|
pos = res.pos
|
||
|
|
else:
|
||
|
|
href = ""
|
||
|
|
|
||
|
|
# [link]( <href> "title" )
|
||
|
|
# ^^ skipping these spaces
|
||
|
|
start = pos
|
||
|
|
while pos < max:
|
||
|
|
ch = state.src[pos]
|
||
|
|
if not isStrSpace(ch) and ch != "\n":
|
||
|
|
break
|
||
|
|
pos += 1
|
||
|
|
|
||
|
|
# [link]( <href> "title" )
|
||
|
|
# ^^^^^^^ parsing link title
|
||
|
|
res = state.md.helpers.parseLinkTitle(state.src, pos, state.posMax)
|
||
|
|
if pos < max and start != pos and res.ok:
|
||
|
|
title = res.str
|
||
|
|
pos = res.pos
|
||
|
|
|
||
|
|
# [link]( <href> "title" )
|
||
|
|
# ^^ skipping these spaces
|
||
|
|
while pos < max:
|
||
|
|
ch = state.src[pos]
|
||
|
|
if not isStrSpace(ch) and ch != "\n":
|
||
|
|
break
|
||
|
|
pos += 1
|
||
|
|
else:
|
||
|
|
title = ""
|
||
|
|
|
||
|
|
if pos >= max or state.src[pos] != ")":
|
||
|
|
state.pos = oldPos
|
||
|
|
return False
|
||
|
|
|
||
|
|
pos += 1
|
||
|
|
|
||
|
|
else:
|
||
|
|
#
|
||
|
|
# Link reference
|
||
|
|
#
|
||
|
|
if "references" not in state.env:
|
||
|
|
return False
|
||
|
|
|
||
|
|
# /* [ */
|
||
|
|
if pos < max and state.src[pos] == "[":
|
||
|
|
start = pos + 1
|
||
|
|
pos = state.md.helpers.parseLinkLabel(state, pos)
|
||
|
|
if pos >= 0:
|
||
|
|
label = state.src[start:pos]
|
||
|
|
pos += 1
|
||
|
|
else:
|
||
|
|
pos = labelEnd + 1
|
||
|
|
else:
|
||
|
|
pos = labelEnd + 1
|
||
|
|
|
||
|
|
# covers label == '' and label == undefined
|
||
|
|
# (collapsed reference link and shortcut reference link respectively)
|
||
|
|
if not label:
|
||
|
|
label = state.src[labelStart:labelEnd]
|
||
|
|
|
||
|
|
label = normalizeReference(label)
|
||
|
|
|
||
|
|
ref = state.env["references"].get(label, None)
|
||
|
|
if not ref:
|
||
|
|
state.pos = oldPos
|
||
|
|
return False
|
||
|
|
|
||
|
|
href = ref["href"]
|
||
|
|
title = ref["title"]
|
||
|
|
|
||
|
|
#
|
||
|
|
# We found the end of the link, and know for a fact it's a valid link
|
||
|
|
# so all that's left to do is to call tokenizer.
|
||
|
|
#
|
||
|
|
if not silent:
|
||
|
|
content = state.src[labelStart:labelEnd]
|
||
|
|
|
||
|
|
tokens: list[Token] = []
|
||
|
|
state.md.inline.parse(content, state.md, state.env, tokens)
|
||
|
|
|
||
|
|
token = state.push("image", "img", 0)
|
||
|
|
token.attrs = {"src": href, "alt": ""}
|
||
|
|
token.children = tokens or None
|
||
|
|
token.content = content
|
||
|
|
|
||
|
|
if title:
|
||
|
|
token.attrSet("title", title)
|
||
|
|
|
||
|
|
# note, this is not part of markdown-it JS, but is useful for renderers
|
||
|
|
if label and state.md.options.get("store_labels", False):
|
||
|
|
token.meta["label"] = label
|
||
|
|
|
||
|
|
state.pos = pos
|
||
|
|
state.posMax = max
|
||
|
|
return True
|