2022-03-09 20:30:41 -05:00
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use crate::{
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get_selections_with_desc, kak, open_command_fifo, KakMessage, SelectionDesc, SelectionWithDesc,
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};
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2022-02-21 17:23:34 -05:00
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use alphanumeric_sort::compare_str;
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use regex::Regex;
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use std::{cmp::Ordering, io::Write, str::FromStr};
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2022-02-21 17:23:34 -05:00
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#[derive(clap::StructOpt, Debug)]
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pub struct Options {
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#[clap(index = 1)]
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regex: Option<Regex>,
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#[clap(short = 's', long)]
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subselections_register: Option<char>,
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// TODO: Can we invert a boolean? This name is terrible
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#[clap(short = 'S', long, parse(try_from_str = invert_bool), default_value_t)]
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no_skip_whitespace: bool,
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#[clap(short, long)]
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lexicographic_sort: bool,
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#[clap(short, long)]
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reverse: bool,
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#[clap(short, long)]
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ignore_case: bool,
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}
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fn invert_bool(s: &str) -> Result<bool, &'static str> {
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// Invert the boolean
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match s {
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"false" => Ok(true),
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"true" => Ok(false),
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_ => Err("Unparsable boolean value"),
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}
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}
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struct SortableSelection<'a> {
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/// The content of the selection
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content: &'a str,
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/// The string used to compare the content
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content_comparison: &'a str,
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/// Any subselections
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subselections: Vec<&'a str>,
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}
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/// Gets a Vec of sortable selections with a given list of subselections and descriptions
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fn get_sortable_selections_subselections<'a, 'b, 'tmp, S: AsRef<str> + std::fmt::Debug + 'a>(
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options: &'b Options,
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selections: Vec<SelectionWithDesc>,
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subselections: Vec<SelectionWithDesc>,
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) -> Result<Vec<SortableSelection<'a>>, KakMessage> {
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let mut sortable_selections = selections
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.iter()
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.zip(selections_desc.iter())
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.map(|(s, sd)| {
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Ok((
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to_sortable_selection(s.as_ref(), options),
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SelectionDesc::from_str(sd.as_ref())?,
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))
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})
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.collect::<Result<Vec<(SortableSelection, SelectionDesc)>, KakMessage>>()?;
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let mut subselections = subselections
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.iter()
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.zip(subselections_desc.iter())
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// Bind selection with associated description
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// Sort descriptions so left is always <= right
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.map(|(s, sd)| Ok((s.as_ref(), SelectionDesc::from_str(sd.as_ref())?.sort())))
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.collect::<Result<Vec<(&str, SelectionDesc)>, KakMessage>>()?;
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// Sort subselections by description
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subselections.sort_by(|(_, ssd_a), (_, ssd_b)| ssd_a.cmp(ssd_b));
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// For each selection, check if they contain any subselections
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// If so, add them to the subselections vector
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// TODO: This is O(n^2), but can be made more efficient since subselections is sorted
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for (s, s_desc) in &mut sortable_selections {
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for i in &subselections {
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if s_desc.contains(&i.1) {
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s.subselections.push(i.0);
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}
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}
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}
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sortable_selections.sort_by(|(a, _), (b, _)| {
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// First, check if there are any subselection comparisons to be made
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// If one has more subselections than the other, stop comparing
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for (a_subsel, b_subsel) in a.subselections.iter().zip(b.subselections.iter()) {
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match a_subsel.cmp(b_subsel) {
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// These subselections are equal, so we can't do anything
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Ordering::Equal => continue,
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// We found a difference, so return the comparison
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o => return o,
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}
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}
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// No subselections mismatched, so compare the (possibly trimmed) content
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a.content_comparison.cmp(b.content_comparison)
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});
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Ok(sortable_selections.into_iter().map(|(s, _)| s).collect())
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}
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fn to_sortable_selection<'a, 'b>(
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selection: &'a str,
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options: &'b Options,
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) -> SortableSelection<'a> {
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if options.no_skip_whitespace {
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SortableSelection {
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content: selection,
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content_comparison: selection,
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subselections: vec![],
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}
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} else {
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SortableSelection {
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content: selection,
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content_comparison: selection.trim(),
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subselections: vec![],
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}
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}
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}
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pub fn sort(options: &Options) -> Result<KakMessage, KakMessage> {
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eprintln!("Got sort options: {:?}", options);
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let subselections = options
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.subselections_register
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.map(|_r| -> Result<Vec<SelectionWithDesc>, KakMessage> {
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let ret = get_selections_with_desc()?;
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kak::exec("exec z")?;
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Ok(ret)
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})
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.transpose()?;
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let selections = get_selections_with_desc()?;
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// let subselections: Option<(Vec<String>, Vec<String>)> = options
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// .subselections_register
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// .map::<Result<(Vec<String>, Vec<String>), KakMessage>, _>(|_c| {
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// let subselections = kak::response("%val{selections}")?;
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// let subselections_desc = kak::response("%val{selections_desc}")?;
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// // kak_exec(&format!("exec z",))?;
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// Ok((subselections, subselections_desc))
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// })
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// .transpose()?;
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// let selections = kak::response("%val{selections}")?;
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let mut zipped: Vec<SortableSelection<'_>> = match subselections {
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Some(subselections) => {
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let selections_desc = kak::response("%val{selections_desc}")?;
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get_sortable_selections_subselections(
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options,
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&selections,
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&selections_desc,
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subselections,
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subselections_desc,
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)?
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}
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None => selections
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.iter()
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.map(|s| to_sortable_selection(s, options))
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.collect(),
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};
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zipped.sort_by(|a, b| {
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for (a_subselection, b_subselection) in a.subselections.iter().zip(b.subselections.iter()) {
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let comparison = if options.lexicographic_sort {
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a_subselection.cmp(b_subselection)
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} else {
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compare_str(a_subselection, b_subselection)
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};
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match comparison {
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Ordering::Less | Ordering::Greater => return comparison,
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Ordering::Equal => {}
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}
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}
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if options.lexicographic_sort {
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a.content_comparison.cmp(b.content_comparison)
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} else {
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compare_str(a.content_comparison, b.content_comparison)
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}
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});
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let mut f = open_command_fifo()?;
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write!(f, "reg '\"'")?;
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let iter: Box<dyn Iterator<Item = _>> = if options.reverse {
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Box::new(zipped.iter().rev())
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} else {
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Box::new(zipped.iter())
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};
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for i in iter {
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let new_selection = i.content.replace('\'', "''");
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write!(f, " '{}'", new_selection)?;
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}
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write!(f, " ; exec R;")?;
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f.flush()?;
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Ok(KakMessage(
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format!("Sorted {} selections", zipped.len()),
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None,
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))
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}
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