forked from sheetjs/docs.sheetjs.com
52 lines
1.8 KiB
Rust
52 lines
1.8 KiB
Rust
/*! sheetjs (C) SheetJS -- https://sheetjs.com */
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/* simple wrapper to evaluate code snippets */
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fn eval_code(c: &mut boa_engine::Context, code: &str) -> Result<std::string::String, boa_engine::JsError> {
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let src = boa_engine::Source::from_bytes(code);
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match c.eval(src) {
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Ok(res) => { return Ok(res.to_string(c).unwrap().to_std_string_escaped()); }
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Err(e) => { return Err(e); }
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};
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}
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fn main() {
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/* initialize */
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let context = &mut boa_engine::Context::default();
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/* load library */
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match eval_code(context, include_str!("../xlsx.full.min.js")) {
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Ok(_res) => {}
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Err(e) => { return eprintln!("Uncaught {e}"); }
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}
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/* get version string */
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match eval_code(context, "XLSX.version") {
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Ok(res) => { println!( "SheetJS library version {}", res); }
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Err(e) => { return eprintln!("Uncaught {e}"); }
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}
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/* read file */
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{
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let mut iter = std::env::args();
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let path: String = iter.nth(1).expect("must specify a file name");
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let file: Vec<u8> = std::fs::read(path.clone()).unwrap();
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/* push data to boa */
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let array: boa_engine::object::builtins::JsArrayBuffer = boa_engine::object::builtins::JsArrayBuffer::from_byte_block(file, context).unwrap();
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let attrs = boa_engine::property::Attribute::WRITABLE | boa_engine::property::Attribute::ENUMERABLE | boa_engine::property::Attribute::CONFIGURABLE;
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let _ = context.register_global_property(boa_engine::js_string!("buf"), array, attrs);
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}
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/* parse workbook and assign to global `wb` property */
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match eval_code(context, "void (globalThis.wb = XLSX.read(buf))") {
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Ok(_res) => { }
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Err(e) => { return eprintln!("Uncaught {e}"); }
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}
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/* print CSV of first worksheet */
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match eval_code(context, "XLSX.utils.sheet_to_csv(wb.Sheets[wb.SheetNames[0]])") {
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Ok(res) => { println!( "{}", res); }
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Err(e) => { return eprintln!("Uncaught {e}"); }
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}
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} |