File size: 1,851 Bytes
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use loda_rust_core::oeis::OeisIdHashSet;
use crate::common::OeisIdStringMap;
use crate::oeis::{ProcessStrippedFile, StrippedRow};
use loda_rust_core::util::BigIntVecToString;
use std::error::Error;
use std::io;
use std::time::Instant;
use console::Style;
use indicatif::{HumanDuration, ProgressBar};
use num_bigint::BigInt;
use num_traits::Zero;
#[allow(dead_code)]
pub fn batch_lookup_terms(
reader: &mut dyn io::BufRead,
filesize: usize,
oeis_ids: &OeisIdHashSet
) -> Result<OeisIdStringMap, Box<dyn Error>> {
let start = Instant::now();
println!("Looking up in the OEIS 'stripped' file");
let mut oeis_id_terms_map = OeisIdStringMap::new();
let pb = ProgressBar::new(filesize as u64);
let callback = |row: &StrippedRow, count_bytes: usize| {
pb.set_position(count_bytes as u64);
if oeis_ids.contains(&row.oeis_id()) {
let terms: String = row.terms().to_compact_comma_string();
// let message = format!("{}: {}", row.oeis_id().a_number(), terms);
// pb.println(message);
oeis_id_terms_map.insert(row.oeis_id(), terms);
}
};
let minimum_number_of_required_terms: usize = 1;
let term_count: usize = 100;
let oeis_ids_to_ignore = OeisIdHashSet::new();
let mut processor = ProcessStrippedFile::new();
let padding_value: BigInt = BigInt::zero();
processor.execute(
reader,
minimum_number_of_required_terms,
term_count,
&oeis_ids_to_ignore,
&padding_value,
false,
callback
);
pb.finish_and_clear();
let green_bold = Style::new().green().bold();
println!(
"{:>12} Lookups in the OEIS 'stripped' file, in {}",
green_bold.apply_to("Finished"),
HumanDuration(start.elapsed())
);
Ok(oeis_id_terms_map)
}
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