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Improved style: use of hear document

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kojix2 2021-01-22 11:04:54 +09:00
parent ac0f5d4efa
commit 96d11f8d0e
1 changed files with 15 additions and 9 deletions
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24
lib/youplot/backends/unicode_plot_backend.rb
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@ -190,18 +190,24 @@ module YouPlot
def check_series_size(data, fmt)
series = data.series
if series.size == 1
warn 'youplot: There is only one series of input data. Please check the delimiter.'
warn ''
warn " Headers: \e[35m#{data.headers.inspect}\e[0m"
warn " The first item is: \e[35m\"#{series[0][0]}\"\e[0m"
warn " The last item is : \e[35m\"#{series[0][-1]}\"\e[0m"
warn <<~EOS
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
The last item is : \e[35m\"#{series[0][-1]}\"\e[0m
EOS
# Note: Error messages cannot be colored.
YouPlot.run_as_executable ? exit(1) : raise(Error)
end
if fmt == 'xyxy' && series.size.odd?
warn 'YouPlot: In the xyxy format, the number of series must be even.'
warn ''
warn " Number of series: \e[35m#{series.size}\e[0m"
warn " Headers: \e[35m#{data.headers.inspect}\e[0m"
warn <<~EOS
YouPlot: In the xyxy format, the number of series must be even.
Number of series: \e[35m#{series.size}\e[0m
Headers: \e[35m#{data.headers.inspect}\e[0m
EOS
# Note: Error messages cannot be colored.
YouPlot.run_as_executable ? exit(1) : raise(Error)
end
end