Update documentation

src/filters.rs

@@ -4,41 +4,38 @@ use indexmap::IndexMap;
 use std::collections::HashSet;
 use unicode_segmentation::UnicodeSegmentation;
 
-/// Filters for words to be included in the tally.
+/// Filters for which words should be tallied.
 #[derive(Clone, Debug, Default, Eq, PartialEq, PartialOrd, Ord, Hash)]
 pub struct Filters {
-    /// Word chars filters for tallying.
+    /// Minimum characters required for a word.
     pub min_chars: Option<MinChars>,
 
-    /// Word count filters for tallying.
+    /// Minimum count for number of times a word must appear.
     pub min_count: Option<MinCount>,
 
-    /// List of specific words to exclude for tallying.
+    /// List of specific words to exclude.
     pub exclude: Option<ExcludeWords>,
 }
 
 impl Filters {
     /// Removes words from the `tally_map` based on any word `Filters`.
     pub fn apply(&self, tally_map: &mut IndexMap<Box<str>, usize>, case: Case) {
-        // Remove any words that lack the minimum count.
         if let Some(MinCount(min_count)) = self.min_count {
             tally_map.retain(|_, &mut count| count >= min_count);
         }
 
-        // Remove any words that lack the minimum numbner of characters.
         if let Some(MinChars(min_chars)) = self.min_chars {
             tally_map.retain(|word, _| word.graphemes(true).count() >= min_chars);
         }
 
-        // Remove any words on the `discard` list.
         if let Some(ExcludeWords(words)) = &self.exclude {
             let discard: HashSet<_> = words.iter().map(|word| case.apply_and_box(word)).collect();
             tally_map.retain(|word, _| !discard.contains(word));
         }
     }
 }
 
-/// Min number of chars a word needs to be tallied.
+/// Minimum number of characters a word needs to have to be tallied.
 #[derive(Clone, Copy, Debug, Default, Eq, PartialEq, PartialOrd, Ord, Hash)]
 pub struct MinChars(pub usize);
 
@@ -54,7 +51,7 @@ impl From<usize> for MinChars {
     }
 }
 
-/// Min count a word needs to be tallied.
+/// Minimum number of times a word needs to appear to be tallied.
 #[derive(Clone, Copy, Debug, Default, Eq, PartialEq, PartialOrd, Ord, Hash)]
 pub struct MinCount(pub usize);
 
@@ -70,7 +67,7 @@ impl From<usize> for MinCount {
     }
 }
 
-/// A list of words that should not be tallied.
+/// A list of words that should be omitted from the tally.
 #[derive(Clone, Debug, Default, Eq, PartialEq, PartialOrd, Ord, Hash)]
 pub struct ExcludeWords(pub Vec<String>);
 

src/input.rs

@@ -3,7 +3,7 @@ use std::fs::File;
 use std::io::{self, Read};
 use std::path::PathBuf;
 
-/// `Input` from a file or stdin input source.
+/// `Input` to read from a file or stdin source.
 pub enum Input {
     File(PathBuf),
     Stdin,
@@ -19,7 +19,7 @@ impl Input {
         }
     }
 
-    /// Gets the reader for the input source.
+    /// Gets the reader from the input source.
     pub fn get_reader(&self) -> Result<Box<dyn Read>> {
         match self {
             Self::File(path) => {
@@ -31,7 +31,7 @@ impl Input {
         }
     }
 
-    /// Returns the file name of the input or `"-"` for STDIN.
+    /// Returns the file name of the input or `"-"` for stdin.
     pub fn source(&self) -> String {
         match self {
             Self::File(path) => path

src/options.rs

@@ -3,14 +3,14 @@ use clap::ValueEnum;
 use core::cmp::Reverse;
 use core::fmt::{self, Display, Formatter};
 
-// Tallying options.
+/// Tallying options.
 #[derive(Clone, Copy, Debug, Default, Eq, PartialEq, Hash)]
 pub struct Options {
     pub case: Case,
     pub sort: Sort,
 }
 
-/// Word case normalization.
+/// Word case normalization options.
 #[derive(Clone, Copy, Debug, Default, Eq, PartialEq, Hash, ValueEnum)]
 pub enum Case {
     Original,

src/output.rs

@@ -3,10 +3,10 @@ use std::fs::File;
 use std::io::{self, ErrorKind::BrokenPipe, LineWriter, Write};
 use std::path::{Path, PathBuf};
 
-/// `Writer` is a boxed type for dynamic dispatch of the `Write` trait.
+/// `Writer` dynamic dispatches the `Write` trait.
 pub type Writer = Box<dyn Write>;
 
-/// `Output` manages writing to either a file, stdout, or stderr.
+/// `Output` writes to either a file or stream like stdout or stderr.
 pub struct Output {
     writer: Writer,
 }

src/verbose.rs

@@ -47,7 +47,7 @@ impl Verbose {
         Ok(())
     }
 
-    /// Format `"none"` or a `usize` as a `String`.
+    /// Format the `usize`, or `"none"` if none, as a `String`.
     fn format<T: ToString>(&self, value: Option<T>) -> String {
         value.map_or_else(|| "none".to_string(), |v| v.to_string())
     }