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37 lines
1 KiB
Ruby
37 lines
1 KiB
Ruby
# frozen_string_literal: true
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module StringUtility
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def ellipsize(
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string,
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minimum_length = Constants::MAX_NAME_TRUNCATION,
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edge_length = Constants::MAX_EDGE_LENGTH
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)
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length = string.length
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return string if length < minimum_length || length <= edge_length * 2
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edge = '.' * edge_length
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mid_length = length - edge_length * 2
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string.gsub(/(#{edge}).{#{mid_length},}(#{edge})/, '\1...\2')
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end
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# Convert string to filesystem compatible file/folder name
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def to_filesystem_name(name)
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# Handle reserved directories
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if name == '..'
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return '__'
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elsif name == '.'
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return '_'
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end
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# Truncate and replace reserved characters
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name = name[0, Constants::EXPORTED_FILENAME_TRUNCATION_LENGTH]
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.gsub(%r{[*":<>?/\\|~]}, '_')
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# Remove control characters
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name = name.chars.map(&:ord).select { |s| (s > 31 && s < 127) || s > 127 }
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.pack('U*')
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# Remove leading hyphens, trailing dots/spaces
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name.gsub(/^-|\.+$| +$/, '_')
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end
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end
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