INNER CODE UNIT · Rust

text_json

edwardkim/rhwp · bindings/Native/src/lib.rs:483

fn text_json(page_count: u32, pages: &[(u32, String)]) -> String {
    let pages_json = pages
        .iter()
        .map(|(index, text)| format!("{{\"index\":{},\"text\":\"{}\"}}", index, json_escape(text)))
        .collect::<Vec<_>>()
        .join(",");

    format!(
        "{{\"ok\":true,\"pageCount\":{},\"pages\":[{}]}}",
        page_count, pages_json
    )
}

fn json_escape(s: &str) -> String {
    let mut out = String::with_capacity(s.len());
    for ch in s.chars() {
        match ch {
            '"' => out.push_str("\\\""),

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