Module: Bbcode

Defined in:
lib/bbcode.rb

Constant Summary collapse

TabStr =

user-customizable values

" "
TabSize = 
4
IndentExp =

indent regexp tests

[
/^module\b/,
/^class\b/,
/^if\b/,
/(=\s*|^)until\b/,
/(=\s*|^)for\b/,
/^unless\b/,
/(=\s*|^)while\b/,
/(=\s*|^)begin\b/,
/(^| )case\b/,
/\bthen\b/,
/^rescue\b/,
/^def\b/,
/\bdo\b/,
/^else\b/,
/^elsif\b/,
/^ensure\b/,
/\bwhen\b/,
/\{[^\}]*$/,
/\[[^\]]*$/
]
OutdentExp =

outdent regexp tests

[
/^rescue\b/,
/^ensure\b/,
/^elsif\b/,
/^end\b/,
/^else\b/,
/\bwhen\b/,
/^[^\{]*\}/,
/^[^\[]*\]/
]

Class Method Summary collapse

Class Method Details

.beautify_file(path) ⇒ Object

beautify_string



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# File 'lib/bbcode.rb', line 160

def self.beautify_file(path)
error = false
if(path == '-') # stdin source
source = STDIN.read
dest,error = beautify_string(source,"stdin")
print dest
else # named file source
source = File.read(path)
dest,error = beautify_string(source,path)
if(source != dest)
# make a backup copy
File.open(path + "~","w") { |f| f.write(source) }
# overwrite the original
File.open(path,"w") { |f| f.write(dest) }
end
end
return error
end

.beautify_string(source, path = "") ⇒ Object 



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# File 'lib/bbcode.rb', line 55

def self.beautify_string(source, path = "")
comment_block = false
in_here_doc = false
here_doc_term = ""
program_end = false
multiLine_array = []
multiLine_str = ""
tab = 0
output = []
source.each do |line|
line.chomp!
if(!program_end)
# detect program end mark
if(line =~ /^__END__$/)
program_end = true
else
# combine continuing lines
if(!(line =~ /^\s*#/) && line =~ /[^\\]\\\s*$/)
multiLine_array.push line
multiLine_str += line.sub(/^(.*)\\\s*$/,"\\1")
next
end

# add final line
if(multiLine_str.length > 0)
multiLine_array.push line
multiLine_str += line.sub(/^(.*)\\\s*$/,"\\1")
end

tline = ((multiLine_str.length > 0)?multiLine_str:line).strip
if(tline =~ /^=begin/)
comment_block = true
end
if(in_here_doc)
in_here_doc = false if tline =~ %r{\s*#{here_doc_term}\s*}
else # not in here_doc
if tline =~ %r{=\s*<<}
here_doc_term = tline.sub(%r{.*=\s*<<-?\s*([_|\w]+).*},"\\1")
in_here_doc = here_doc_term.size > 0
end
end
end
end
if(comment_block || program_end || in_here_doc)
# add the line unchanged
output << line
else
comment_line = (tline =~ /^#/)
if(!comment_line)
# throw out sequences that will
# only sow confusion
while tline.gsub!(/\{[^\{]*?\}/,"")
end
while tline.gsub!(/\[[^\[]*?\]/,"")
end
while tline.gsub!(/'.*?'/,"")
end
while tline.gsub!(/".*?"/,"")
end
while tline.gsub!(/\`.*?\`/,"")
end
while tline.gsub!(/\([^\(]*?\)/,"")
end
while tline.gsub!(/\/.*?\//,"")
end
while tline.gsub!(/%r(.).*?\1/,"")
end
# delete end-of-line comments
tline.sub!(/#[^\"]+$/,"")
# convert quotes
tline.gsub!(/\\\"/,"'")
OutdentExp.each do |re|
if(tline =~ re)
tab -= 1
break
end
end
end
if (multiLine_array.length > 0)
multiLine_array.each do |ml|
output << rb_add_line(ml,tab)
end
multiLine_array.clear
multiLine_str = ""
else
output << rb_add_line(line,tab)
end
if(!comment_line)
IndentExp.each do |re|
if(tline =~ re && !(tline =~ /\s+end\s*$/))
tab += 1
break
end
end
end
end
if(tline =~ /^=end/)
comment_block = false
end
end
error = (tab != 0)
STDERR.puts "Error: indent/outdent mismatch: #{tab}." if error
return output.join("\n") + "\n",error
end

.rb_add_line(line, tab) ⇒ Object 



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# File 'lib/bbcode.rb', line 49

def self.rb_add_line(line,tab)
line.strip!
line = rb_make_tab(tab) + line if line.length > 0
return line
end

.rb_make_tab(tab) ⇒ Object 



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# File 'lib/bbcode.rb', line 45

def self.rb_make_tab(tab)
return (tab < 0) ? "" : TabStr * TabSize * tab
end