dan/lezer-markdown-obsidian
1
0
Fork 0
mirror of https://github.com/danbulant/lezer-markdown-obsidian synced 2026-05-19 04:18:46 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions

handle intermixed parsing for tex and comments

Browse source
This commit is contained in:
Eric Rykwalder 2022-03-11 18:52:43 -05:00
parent 7ed8ebf669
commit 47bed7489e
1 changed files with 21 additions and 24 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

45
src/extensions.ts
View file

@ -19,6 +19,8 @@ declare module "@lezer/markdown" {
}
}
const CommentDelim = { resolve: "Comment", mark: "CommentMarker" };
export const Comment: MarkdownConfig = {
defineNodes: ["Comment", "CommentMarker"],
parseBlock: [
@ -66,18 +68,17 @@ export const Comment: MarkdownConfig = {
{
name: "CommentInline",
parse(cx: InlineContext, next: number, pos: number) {
let match = /^%%[^\n]*[^\n\\]%%/.exec(cx.text.slice(pos - cx.offset));
if (!match) {
return -1;
if (next == 37 && cx.char(pos + 1) == 37) {
let canClose = true;
if (
cx.slice(cx.offset, pos).lastIndexOf("\n") >
cx.slice(cx.offset, pos).lastIndexOf("%%")
) {
canClose = false;
}
return cx.addDelimiter(CommentDelim, pos, pos + 2, true, canClose);
}
const start = pos;
const end = pos + match[0].length;
return cx.addElement(
cx.elt("Comment", start, end, [
cx.elt("CommentMarker", start, start + 2),
cx.elt("CommentMarker", end - 2, end),
])
);
return -1;
},
},
],
@ -396,6 +397,8 @@ export const TaskList: MarkdownConfig = {
};
/* End Copyright */
const TexDelim = { resolve: "TexInline", mark: "TexMarker" };
export const Tex: MarkdownConfig = {
defineNodes: ["TexBlock", "TexInline", "TexMarker"],
parseBlock: [
@ -443,21 +446,15 @@ export const Tex: MarkdownConfig = {
parseInline: [
{
name: "TexInline",
parse(cx: InlineContext, _, pos: number) {
let match = /^\$(?:[^$\t ][^$]*)?[^$\t \\]\$(\D|$)/.exec(
cx.text.slice(pos - cx.offset)
);
if (!match) {
parse(cx: InlineContext, next: number, pos: number) {
if (next != 36 /* $ */) {
return -1;
}
const start = pos;
const end = start + match[0].length - match[1].length;
return cx.addElement(
cx.elt("TexInline", start, end, [
cx.elt("TexMarker", start, start + 1),
cx.elt("TexMarker", end - 1, end),
])
);
const before = cx.slice(pos - 1, pos);
const after = cx.slice(pos + 1, pos + 2);
const canClose = /[^ \t]/.test(before) && !/\d/.test(after);
const canOpen = /[^$ \t]/.test(after);
return cx.addDelimiter(TexDelim, pos, pos + 1, canOpen, canClose);
},
},
],