Chris, For those of us new to Ruby, do we need to wrap your script in :
ruby -e '<your script>'?
Thanks On Dec 21, 2004, at 11:02 AM, Chris Thomas wrote:
On Dec 21, 2004, at 7:46 AM, Eric Hsu wrote:
This version is actually better than BBEdit's, in my opinion, because
- it can uncomment many different comment formats for silly
languages like PHP that support several; and 2. it places comment delimiters at the original level of indent (and not the first column like BB does); and 3. we can all customize it.
Here's what I use (requires Ruby 1.8). (I typically want to preserve the existing inline comments, so I don't personally find those first two properties desirable.)
file_extension = File.extname(ARGV[0]) file_extension = file_extension[1..file_extension.size]
# default to shell-style comments comment_strings = ['#','']
StringMap = { ['c','cp','cpp','h','m','mm','p','pas', 'java','js','htc','c++','h++'] => ['//',''], # C family and some variants of Pascal ['f','f77'] => ['C ',''], # Fortran ['inf','f90'] => ['!',''], # Inform, modern Fortran ['script','adb','ads','sql','ddl', 'dml'] => ['--',''], # AppleScript, Ada, SQL ['html','xml','plist','php'] => ['<!--','-->'], # XML, HTML ['mli','ml', 'mll','mly'] => ['(*','*)'], # OCaml uses Pascal comments ['bib','ltx','tex','ps','eps'] => ['%',''] # Latex etc }
key = StringMap.keys.detect {|k| k.include?(file_extension)}
(comment_strings = StringMap[key]) if not key.nil?
comment_expr = /^\s*#{comment_strings[0]}(.*)#{comment_strings[1]}/
choose_mode = true uncomment = false
def process_line(instring, uncomment, comment_strings, comment_expr)
if uncomment then # uncomment match = comment_expr.match(instring) if match != nil then puts match[1] else puts instring end else # comment puts comment_strings[0] + instring.chomp + comment_strings[1] end end
# if the first line is commented, assume the user wants to uncomment # and vice versa first_line = $stdin.gets uncomment = comment_expr.match(first_line) uncomment = false if uncomment.nil? process_line(first_line, uncomment, comment_strings, comment_expr)
$stdin.each_line { |instring| process_line(instring, uncomment, comment_strings, comment_expr) }
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