51 lines
1.4 KiB
Ruby
51 lines
1.4 KiB
Ruby
class String
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def undent
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gsub(/^.{#{slice(/^ +/).length}}/, '')
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end
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unless String.method_defined?(:start_with?)
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def start_with? prefix
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prefix = prefix.to_s
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self[0, prefix.length] == prefix
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end
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end
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end
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# used by the inreplace function (in utils.rb)
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module StringInreplaceExtension
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# Warn if nothing was replaced
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def gsub! before, after, audit_result=true
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sub = super(before, after)
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if audit_result and sub.nil?
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opoo "inreplace: replacement of '#{before}' with '#{after}' failed"
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end
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return sub
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end
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# Looks for Makefile style variable defintions and replaces the
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# value with "new_value", or removes the definition entirely.
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def change_make_var! flag, new_value
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new_value = "#{flag}=#{new_value}"
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sub = gsub! Regexp.new("^#{flag}[ \\t]*=[ \\t]*(.*)$"), new_value, false
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opoo "inreplace: changing '#{flag}' to '#{new_value}' failed" if sub.nil?
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end
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# Removes variable assignments completely.
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def remove_make_var! flags
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# Next line is for Ruby 1.9.x compatibility
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flags = [flags] unless flags.kind_of? Array
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flags.each do |flag|
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# Also remove trailing \n, if present.
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sub = gsub! Regexp.new("^#{flag}[ \\t]*=(.*)$\n?"), "", false
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opoo "inreplace: removing '#{flag}' failed" if sub.nil?
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end
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end
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# Finds the specified variable
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def get_make_var flag
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m = match Regexp.new("^#{flag}[ \\t]*=[ \\t]*(.*)$")
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return m[1] if m
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return nil
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end
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end
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