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executable file 138 lines (126 sloc) 3.07 KB
#!/usr/bin/env ruby
# http://blog.neontology.com/articles/2006/05/10/beautiful-ruby-in-textmate
# http://www.arachnoid.com/ruby/rubyBeautifier.html
#
# Ruby beautifier, version 1.3, 04/03/2006
# Copyright (c) 2006, P. Lutus
# TextMate modifications by T. Burks
# Vim modifications by Luis Mondesi
# Released under the GPL
$tabSize = 2
$tabStr = " "
# indent regexp tests
$indentExp = [
/^module\b/,
/(=\s*|^)if\b/,
/(=\s*|^)until\b/,
/(=\s*|^)for\b/,
/(=\s*|^)unless\b/,
/(=\s*|^)while\b/,
/(=\s*|^)begin\b/,
/(=\s*|^)case\b/,
/\bthen\b/,
/^class\b/,
/^rescue\b/,
/^def\b/,
/\bdo\b/,
/^else\b/,
/^elsif\b/,
/^ensure\b/,
/\bwhen\b/,
/\{[^\}]*$/,
/\[[^\]]*$/
]
# outdent regexp tests
$outdentExp = [
/^rescue\b/,
/^ensure\b/,
/^elsif\b/,
/^end\b/,
/^else\b/,
/\bwhen\b/,
/^[^\{]*\}/,
/^[^\[]*\]/
]
def makeTab(tab)
return (tab < 0)?"":$tabStr * $tabSize * tab
end
def addLine(line,tab)
line.strip!
line = makeTab(tab)+line if line.length > 0
return line + "\n"
end
def beautifyRuby
commentBlock = false
multiLineArray = Array.new
multiLineStr = ""
tab = 0
source = STDIN.read
dest = ""
source.split("\n").each do |line|
# combine continuing lines
if(!(line =~ /^\s*#/) && line =~ /[^\\]\\\s*$/)
multiLineArray.push line
multiLineStr += line.sub(/^(.*)\\\s*$/,"\\1")
next
end
# add final line
if(multiLineStr.length > 0)
multiLineArray.push line
multiLineStr += line.sub(/^(.*)\\\s*$/,"\\1")
end
tline = ((multiLineStr.length > 0)?multiLineStr:line).strip
if(tline =~ /^=begin/)
commentBlock = true
end
if(commentBlock)
# add the line unchanged
dest += line + "\n"
else
commentLine = (tline =~ /^#/)
if(!commentLine)
# throw out sequences that will
# only sow confusion
tline.gsub!(/\/.*?\//,"")
tline.gsub!(/%r\{.*?\}/,"")
tline.gsub!(/%r(.).*?\1/,"")
tline.gsub!(/\\\"/,"'")
tline.gsub!(/".*?"/,"\"\"")
tline.gsub!(/'.*?'/,"''")
tline.gsub!(/#\{.*?\}/,"")
$outdentExp.each do |re|
if(tline =~ re)
tab -= 1
break
end
end
end
if (multiLineArray.length > 0)
multiLineArray.each do |ml|
dest += addLine(ml,tab)
end
multiLineArray.clear
multiLineStr = ""
else
dest += addLine(line,tab)
end
if(!commentLine)
$indentExp.each do |re|
if(tline =~ re && !(tline =~ /\s+end\s*$/))
tab += 1
break
end
end
end
end
if(tline =~ /^=end/)
commentBlock = false
end
end
STDOUT.write(dest)
# uncomment this to complain about mismatched blocks
#if(tab != 0)
# STDERR.puts "Indentation error: #{tab}"
#end
end
beautifyRuby
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