forked from sheetjs/docs.sheetjs.com
58 lines
1.9 KiB
Rust
58 lines
1.9 KiB
Rust
/*! sheetjs (C) SheetJS -- https://sheetjs.com */
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use std::path::Path;
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use std::string::String;
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use std::fs;
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use boa_engine::{js_string, Context, Source, JsError};
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use boa_engine::object::builtins::JsArrayBuffer;
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use boa_engine::property::Attribute;
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fn eval_file(c: &mut Context, path: &str) -> Result<String, JsError> {
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let src = Source::from_filepath(Path::new(path)).unwrap();
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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 eval_code(c: &mut Context, code: &str) -> Result<String, JsError> {
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let src = 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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let context = &mut Context::default();
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/* load library */
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match eval_file(context, "./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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let data: Vec<u8> = fs::read("pres.xlsx").unwrap();
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let array: JsArrayBuffer = JsArrayBuffer::from_byte_block(data, context).unwrap();
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let attrs = Attribute::WRITABLE | Attribute::ENUMERABLE | Attribute::CONFIGURABLE;
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let _ = context.register_global_property(js_string!("buf"), array, attrs);
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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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} |