Rename search module to search_stream.

The name better reflects the difference between it and the search_buffer
module.

src/args.rs

@@ -17,8 +17,8 @@ use gitignore::{Gitignore, GitignoreBuilder};
 use ignore::Ignore;
 use out::{Out, OutBuffer};
 use printer::Printer;
-use search::{InputBuffer, Searcher};
 use search_buffer::BufferSearcher;
+use search_stream::{InputBuffer, Searcher};
 use types::{FileTypeDef, Types, TypesBuilder};
 use walk;
 

src/main.rs

@@ -41,7 +41,7 @@ use walkdir::DirEntry;
 use args::Args;
 use out::{NoColorTerminal, Out, OutBuffer};
 use printer::Printer;
-use search::InputBuffer;
+use search_stream::InputBuffer;
 
 macro_rules! errored {
     ($($tt:tt)*) => {
@@ -63,8 +63,8 @@ mod glob;
 mod ignore;
 mod out;
 mod printer;
-mod search;
 mod search_buffer;
+mod search_stream;
 mod terminal;
 mod types;
 mod walk;

src/search_buffer.rs

@@ -1,3 +1,11 @@
+/*!
+The search_buffer module is responsible for searching a single file all in a
+single buffer. Typically, the source of the buffer is a memory map. This can
+be useful for when memory maps are faster than streaming search.
+
+Note that this module doesn't quite support everything that search_stream does.
+Notably, showing contexts.
+*/
 use std::cmp;
 use std::path::Path;
 
@@ -5,7 +13,7 @@ use grep::Grep;
 use term::Terminal;
 
 use printer::Printer;
-use search::{IterLines, Options, count_lines, is_binary};
+use search_stream::{IterLines, Options, count_lines, is_binary};
 
 pub struct BufferSearcher<'a, W: 'a> {
     opts: Options,

src/search_stream.rs

@@ -1,6 +1,7 @@
 /*!
-The search module is responsible for searching a single file and printing
-matches.
+The search_stream module is responsible for searching a single file and
+printing matches. In particular, it searches the file in a streaming fashion
+using `read` calls and a (roughly) fixed size buffer.
 */
 
 use std::cmp;