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Show a error message when linecolor is specified as a number

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This commit is contained in:
kojix2 2021-07-03 06:39:21 +09:00
parent 7c00f95962
commit 95a35399a2
1 changed files with 22 additions and 1 deletions
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23
lib/youplot/backends/unicode_plot.rb
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@ -6,6 +6,27 @@
require_relative 'processing'
require 'unicode_plot'
# If the line color is specified as a number, the program will display an error
# message to the user and exit. Remove this patch when UnicodePlot is improved.
module UnicodePlot
class << self
alias lineplot_original lineplot
def lineplot(*args, **kw)
if kw[:color].is_a? Numeric
warn <<~EOS
YouPlot: Line colors cannot be specified by numerical values.
For more information, please see the following issue.
https://github.com/red-data-tools/unicode_plot.rb/issues/34
EOS
YouPlot.run_as_executable ? exit(1) : raise(Error)
end
lineplot_original(*args, **kw)
end
end
end
module YouPlot
# plotting functions.
module Backends
@ -182,7 +203,7 @@ module YouPlot
series = data.series
if series.size == 1
warn <<~EOS
youplot: There is only one series of input data. Please check the delimiter.
YouPlot: There is only one series of input data. Please check the delimiter.
Headers: \e[35m#{data.headers.inspect}\e[0m
The first item is: \e[35m\"#{series[0][0]}\"\e[0m