Module: StringUtils

Defined in:
lib/buzzcore/string_utils.rb

Class Method Summary collapse

Class Method Details

.clean_number(aString) ⇒ Object 



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# File 'lib/buzzcore/string_utils.rb', line 24

def self.clean_number(aString)
	aString.gsub(/[^0-9.-]/,'')
end

.crop(aString, aLength, aEllipsis = true, aConvertNil = true) ⇒ Object 



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# File 'lib/buzzcore/string_utils.rb', line 2

def self.crop(aString,aLength,aEllipsis=true,aConvertNil=true)
return aConvertNil ? ' '*aLength : nil if !aString

  increase = aLength-aString.length
  return aString+' '*increase if increase>=0
return aEllipsis ? aString[0,aLength-3]+'...' : aString[0,aLength]
end

.each_unicode_char(aString) ⇒ Object

supply a block with 2 parameters, and it will get called for each char as an integer



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# File 'lib/buzzcore/string_utils.rb', line 29

def self.each_unicode_char(aString)
	len = 1
	index = 0
	char = 0
	aString.each_byte do |b|
		if index==0
			len = 1
			len = 2 if b & 0b11000000 != 0
			len = 3 if b & 0b11100000 != 0
			len = 4 if b & 0b11110000 != 0
			char = 0
		end
	
		char |= b << index*8
	
		yield(char,len) if index==len-1 # last byte; char is complete
	
		index += 1
		index = 0 if index >= len
	end
end

.render_template(aTemplate, aValues) ⇒ Object

aTemplate is a string containing tokens like $SOME_TOKEN aValues is a hash of token names eg. ‘SOME_TOKEN’ and their values to substitute



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# File 'lib/buzzcore/string_utils.rb', line 12

def self.render_template(aTemplate,aValues)
	# get positions of tokens
	result = aTemplate.gsub(/\$\{(.*?)\}/) do |s| 
		key = s[2..-2]
		rep = (aValues[key] || s)
		#puts "replacing #{s} with #{rep}"
		rep
   end
	#puts "rendered :\n#{result}"
	return result
end