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export type Text = {
kind: "text";
content: string;
raw: false;
};
export type RawHTML = {
kind: "text";
content: string;
raw: true;
};
export type Element = {
kind: "element";
name: string;
attributes: Map<string, string>;
children: Node[];
};
export type Node = Element | Text | RawHTML;
export function addClass(e: Element, klass: string) {
const classes = e.attributes.get("class");
if (classes === undefined) {
e.attributes.set("class", klass);
} else {
const classList = classes.split(" ");
classList.push(klass);
classList.sort();
e.attributes.set("class", classList.join(" "));
}
}
export function findFirstChildElement(
e: Element,
name: string,
): Element | null {
for (const c of e.children) {
if (c.kind === "element" && c.name === name) {
return c;
}
}
return null;
}
export function findChildElements(e: Element, name: string): Element[] {
const cs = [];
for (const c of e.children) {
if (c.kind === "element" && c.name === name) {
cs.push(c);
}
}
return cs;
}
export function innerText(e: Element): string {
let t = "";
forEachChild(e, (c) => {
if (c.kind === "text") {
t += c.content;
}
});
return t;
}
export function forEachChild(e: Element, f: (n: Node) => void) {
for (const c of e.children) {
f(c);
}
}
export function forEachChildRecursively(e: Element, f: (n: Node) => void) {
const g = (c: Node) => {
f(c);
if (c.kind === "element") {
forEachChild(c, g);
}
};
forEachChild(e, g);
}
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