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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,146 @@ | ||
| // Copyright: Ankitects Pty Ltd and contributors | ||
| // License: GNU AGPL, version 3 or later; http://www.gnu.org/licenses/agpl.html | ||
|
|
||
| use crate::{ | ||
| collection::Collection, | ||
| err::{AnkiError, Result}, | ||
| notes::NoteID, | ||
| notetype::CardGenContext, | ||
| types::Usn, | ||
| }; | ||
| use itertools::Itertools; | ||
| use regex::Regex; | ||
| use std::borrow::Cow; | ||
|
|
||
| pub struct FindReplaceContext { | ||
| nids: Vec<NoteID>, | ||
| search: Regex, | ||
| replacement: String, | ||
| field_name: Option<String>, | ||
| } | ||
|
|
||
| impl FindReplaceContext { | ||
| pub fn new( | ||
| nids: Vec<NoteID>, | ||
| search_re: &str, | ||
| repl: impl Into<String>, | ||
| field_name: Option<String>, | ||
| ) -> Result<Self> { | ||
| Ok(FindReplaceContext { | ||
| nids, | ||
| search: Regex::new(search_re).map_err(|_| AnkiError::invalid_input("invalid regex"))?, | ||
| replacement: repl.into(), | ||
| field_name, | ||
| }) | ||
| } | ||
|
|
||
| fn replace_text<'a>(&self, text: &'a str) -> Cow<'a, str> { | ||
| self.search.replace_all(text, self.replacement.as_str()) | ||
| } | ||
| } | ||
|
|
||
| impl Collection { | ||
| pub fn find_and_replace(&mut self, ctx: FindReplaceContext) -> Result<u32> { | ||
| self.transact(None, |col| col.find_and_replace_inner(ctx, col.usn()?)) | ||
| } | ||
|
|
||
| fn find_and_replace_inner(&mut self, ctx: FindReplaceContext, usn: Usn) -> Result<u32> { | ||
| let mut total_changed = 0; | ||
| let nids_by_notetype = self.storage.note_ids_by_notetype(&ctx.nids)?; | ||
| for (ntid, group) in &nids_by_notetype.into_iter().group_by(|tup| tup.0) { | ||
| let nt = self | ||
| .get_notetype(ntid)? | ||
| .ok_or_else(|| AnkiError::invalid_input("missing note type"))?; | ||
| let genctx = CardGenContext::new(&nt, usn); | ||
| let field_ord = ctx.field_name.as_ref().and_then(|n| nt.get_field_ord(n)); | ||
| for (_, nid) in group { | ||
| let mut note = self.storage.get_note(nid)?.unwrap(); | ||
| let mut changed = false; | ||
| match field_ord { | ||
| None => { | ||
| // all fields | ||
| for txt in &mut note.fields { | ||
| if let Cow::Owned(otxt) = ctx.replace_text(txt) { | ||
| changed = true; | ||
| *txt = otxt; | ||
| } | ||
| } | ||
| } | ||
| Some(ord) => { | ||
| // single field | ||
| if let Some(txt) = note.fields.get_mut(ord) { | ||
| if let Cow::Owned(otxt) = ctx.replace_text(txt) { | ||
| changed = true; | ||
| *txt = otxt; | ||
| } | ||
| } | ||
| } | ||
| } | ||
| if changed { | ||
| self.update_note_inner(&genctx, &mut note)?; | ||
| total_changed += 1; | ||
| } | ||
| } | ||
| } | ||
|
|
||
| Ok(total_changed) | ||
| } | ||
| } | ||
|
|
||
| #[cfg(test)] | ||
| mod test { | ||
| use super::*; | ||
| use crate::{collection::open_test_collection, decks::DeckID}; | ||
|
|
||
| #[test] | ||
| fn findreplace() -> Result<()> { | ||
| let mut col = open_test_collection(); | ||
|
|
||
| let nt = col.get_notetype_by_name("Basic")?.unwrap(); | ||
| let mut note = nt.new_note(); | ||
| note.fields[0] = "one aaa".into(); | ||
| note.fields[1] = "two aaa".into(); | ||
| col.add_note(&mut note, DeckID(1))?; | ||
|
|
||
| let nt = col.get_notetype_by_name("Cloze")?.unwrap(); | ||
| let mut note2 = nt.new_note(); | ||
| note2.fields[0] = "three aaa".into(); | ||
| col.add_note(&mut note2, DeckID(1))?; | ||
|
|
||
| let nids = col.search_notes_only("")?; | ||
| let cnt = col.find_and_replace(FindReplaceContext::new( | ||
| nids.clone(), | ||
| "(?i)AAA", | ||
| "BBB", | ||
| None, | ||
| )?)?; | ||
| assert_eq!(cnt, 2); | ||
|
|
||
| let note = col.storage.get_note(note.id)?.unwrap(); | ||
| // but the update should be limited to the specified field when it was available | ||
| assert_eq!(¬e.fields, &["one BBB", "two BBB"]); | ||
|
|
||
| let note2 = col.storage.get_note(note2.id)?.unwrap(); | ||
| assert_eq!(¬e2.fields, &["three BBB"]); | ||
|
|
||
| assert_eq!( | ||
| col.storage.field_names_for_notes(&nids)?, | ||
| vec!["Back".to_string(), "Front".into(), "Text".into()] | ||
| ); | ||
| let cnt = col.find_and_replace(FindReplaceContext::new( | ||
| nids.clone(), | ||
| "BBB", | ||
| "ccc", | ||
| Some("Front".into()), | ||
| )?)?; | ||
| // still 2, as the caller is expected to provide only note ids that have | ||
| // that field, and if we can't find the field we fall back on all fields | ||
| assert_eq!(cnt, 2); | ||
|
|
||
| let note = col.storage.get_note(note.id)?.unwrap(); | ||
| // but the update should be limited to the specified field when it was available | ||
| assert_eq!(¬e.fields, &["one ccc", "two BBB"]); | ||
|
|
||
| Ok(()) | ||
| } | ||
| } |
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