40 lines
1.3 KiB
Plaintext
40 lines
1.3 KiB
Plaintext
import fs from "fs";
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import MarkdownIt from "markdown-it";
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import { RuleBlock } from "markdown-it/lib/parser_block";
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export default (md: MarkdownIt): void => {
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const parser: RuleBlock = (state, startLine, endLine, silent) => {
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const CH = "<".charCodeAt(0);
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const pos = state.bMarks[startLine] + state.tShift[startLine];
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const max = state.eMarks[startLine];
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if (state.sCount[startLine] - state.blkIndent >= 4) {
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return false;
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}
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for (let i = 0; i < 3; ++i) {
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const ch = state.src.charCodeAt(pos + i);
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if (ch !== CH || pos + i >= max) return false;
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}
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if (silent) {
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return true;
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}
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const start = pos + 3;
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const end = state.skipSpacesBack(max, pos);
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const rawPath = state.src
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.slice(start, end)
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.trim()
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.replace(/^@/, process.cwd());
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const content = fs.existsSync(rawPath)
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? fs.readFileSync(rawPath).toString()
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: "Not found: " + rawPath;
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const meta = rawPath.replace(rawPath, "");
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state.line = startLine + 1;
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const token = state.push("fence", "code", 0);
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token.info = rawPath.split(".").pop() + meta;
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token.content = content;
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token.markup = "```";
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token.map = [startLine, startLine + 1];
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return true;
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};
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md.block.ruler.before("fence", "snippet", parser);
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};
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