104 lines
2.5 KiB
TypeScript

import { zipArrays } from "../zip";
import { tokenizeLine } from "./tokenizeLine";
import { tokenizeBlock } from "./tokenizeBlock";
import { tokenizeParagraph } from "./tokenizeParagraph";
export const createElements = (body: string) => {
const tokens = tokenize(body);
return tokens;
};
const tokenize = (body: string) => {
body = body.replace(/\n?<!--(.*?)-->\n?/gs, "");
const paragraphs = body.split("\n\n");
const blockTokens: BlockToken[] = [];
const paragraphTokens: ParagraphToken[] = [];
for (const paragraph of paragraphs) {
const block = tokenizeBlock(paragraph);
let openBT = blockTokens.findLast((bt) => !bt.closed);
if (block) {
if (typeof block === "string") {
if (openBT) {
openBT.closed = true;
}
continue;
}
if (openBT) {
openBT.children.push(block);
block.parent = openBT.type;
}
blockTokens.push(block);
continue;
}
if (!openBT) {
openBT = {
children: [],
closed: false,
metadata: {},
type: "block",
uuid: crypto.randomUUID(),
};
blockTokens.push(openBT);
}
const multiline = tokenizeParagraph(paragraph);
let openP = paragraphTokens.findLast((p) => !p.closed);
if (multiline) {
if (Array.isArray(multiline)) {
if (openP) {
openP.closed = true;
openP.content = openP.content.concat(multiline);
}
continue;
}
openBT.children.push(multiline);
paragraphTokens.push(multiline);
continue;
} else if (openP && !openP?.allowsInline) {
openP.content.push({
line: paragraph,
raw: paragraph,
type: "text",
uuid: crypto.randomUUID(),
});
}
// I don't think the closed check is necessary, but just in case
// if (openP && !openP.closed && !openP.allowsInline) continue;
if (!openP) {
openP = {
allowsInline: true,
closed: true,
content: [],
metadata: {},
type: "p",
uuid: crypto.randomUUID(),
};
openBT.children.push(openP);
paragraphTokens.push(openP);
}
const lines = paragraph.split("\n");
let previous;
for (const line of lines) {
const singleLine = tokenizeLine(line, previous);
if (singleLine) {
if (singleLine !== previous) {
openP.content.push(singleLine);
}
previous = singleLine;
}
}
}
return blockTokens.filter((b) => !b.parent);
};