From dbbff1dc3a69de666e7ea8cf48815c42f34ecf5b Mon Sep 17 00:00:00 2001
From: kojix2 <2xijok@gmail.com>
Date: Tue, 19 Jan 2021 14:40:36 +0900
Subject: [PATCH] Improve bar xscale option

---
 lib/youplot/command/parser.rb | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/lib/youplot/command/parser.rb b/lib/youplot/command/parser.rb
index 02a29ae..c4dafa5 100644
--- a/lib/youplot/command/parser.rb
+++ b/lib/youplot/command/parser.rb
@@ -153,6 +153,8 @@ module YouPlot
             Options for #{command}:
           MSG
 
+          xscale_options = UnicodePlot::ValueTransformer::PREDEFINED_TRANSFORM_FUNCTIONS.keys.join(', ')
+
           case command
 
           # If you type only `uplot` in the terminal.
@@ -165,7 +167,7 @@ module YouPlot
             parser.on_head('--symbol VAL', String, 'character to be used to plot the bars') do |v|
               params.symbol = v
             end
-            parser.on_head('--xscale VAL', String, 'axis scaling') do |v|
+            parser.on_head('--xscale VAL', String, "axis scaling (#{xscale_options})") do |v|
               params.xscale = v
             end
             parser.on_head('--fmt VAL', String, 'xy : header is like x, y...', 'yx : header is like y, x...') do |v|