From 4347611b4894250c62bf54b3e64df5481150523c Mon Sep 17 00:00:00 2001
From: JuanLeon Lahoz <juanleon.lahoz@gmail.com>
Date: Tue, 11 May 2021 17:45:50 +0200
Subject: [PATCH] doc: improve help for timehist regex argument

---
 Cargo.lock |  2 +-
 Cargo.toml |  2 +-
 src/app.rs | 12 +++++++++++-
 3 files changed, 13 insertions(+), 3 deletions(-)

diff --git a/Cargo.lock b/Cargo.lock
index 2809f48..f394cbd 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -306,7 +306,7 @@ dependencies = [
 
 [[package]]
 name = "lowcharts"
-version = "0.2.0"
+version = "0.3.2"
 dependencies = [
  "assert_cmd",
  "chrono",
diff --git a/Cargo.toml b/Cargo.toml
index 87bec4a..6aa009e 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "lowcharts"
-version = "0.3.1"
+version = "0.3.2"
 authors = ["JuanLeon Lahoz <juanleon.lahoz@gmail.com>"]
 edition = "2018"
 description = "Tool to draw low-resolution graphs in terminal"
diff --git a/src/app.rs b/src/app.rs
index 2fc6efc..8b4b181 100644
--- a/src/app.rs
+++ b/src/app.rs
@@ -51,6 +51,16 @@ the named one will be used).
     )
 }
 
+fn add_non_capturing_regex(app: App) -> App {
+    app.arg(
+        Arg::new("regex")
+            .long("regex")
+            .short('R')
+            .about("Filter out lines where regex is notr present")
+            .takes_value(true),
+    )
+}
+
 fn add_width(app: App) -> App {
     app.arg(
         Arg::new("width")
@@ -118,7 +128,7 @@ pub fn get_app() -> App<'static> {
                 .about("Use this string formatting")
                 .takes_value(true),
         );
-    timehist = add_input(add_width(add_regex(add_intervals(timehist))));
+    timehist = add_input(add_width(add_non_capturing_regex(add_intervals(timehist))));
 
     App::new("lowcharts")
         .author(clap::crate_authors!())