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77 lines
1.7 KiB
Rust
77 lines
1.7 KiB
Rust
// Copyright: Ankitects Pty Ltd and contributors
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// License: GNU AGPL, version 3 or later; http://www.gnu.org/licenses/agpl.html
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pub(crate) mod card;
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mod collection_timestamps;
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mod config;
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mod deck;
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mod deckconfig;
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mod graves;
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mod note;
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mod notetype;
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mod revlog;
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mod sqlite;
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mod sync;
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mod sync_check;
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mod tag;
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mod upgrades;
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use std::fmt::Write;
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pub(crate) use sqlite::SqliteStorage;
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pub(crate) use sync::open_and_check_sqlite_file;
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/// Write a list of IDs as '(x,y,...)' into the provided string.
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pub(crate) fn ids_to_string<T>(buf: &mut String, ids: &[T])
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where
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T: std::fmt::Display,
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{
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buf.push('(');
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write_comma_separated_ids(buf, ids);
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buf.push(')');
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}
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/// Write a list of Ids as 'x,y,...' into the provided string.
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pub(crate) fn write_comma_separated_ids<T>(buf: &mut String, ids: &[T])
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where
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T: std::fmt::Display,
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{
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if !ids.is_empty() {
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for id in ids.iter().skip(1) {
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write!(buf, "{},", id).unwrap();
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}
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write!(buf, "{}", ids[0]).unwrap();
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}
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}
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pub(crate) fn comma_separated_ids<T>(ids: &[T]) -> String
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where
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T: std::fmt::Display,
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{
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let mut buf = String::new();
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write_comma_separated_ids(&mut buf, ids);
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buf
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}
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#[cfg(test)]
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mod test {
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use super::ids_to_string;
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#[test]
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fn ids_string() {
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let mut s = String::new();
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ids_to_string::<u8>(&mut s, &[]);
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assert_eq!(s, "()");
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s.clear();
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ids_to_string(&mut s, &[7]);
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assert_eq!(s, "(7)");
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s.clear();
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ids_to_string(&mut s, &[7, 6]);
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assert_eq!(s, "(6,7)");
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s.clear();
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ids_to_string(&mut s, &[7, 6, 5]);
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assert_eq!(s, "(6,5,7)");
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s.clear();
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}
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}
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