From: Krekna Mektek Date: 2006-05-20T01:23:42+09:00 Subject: Re: problems with irb? str = 'a\b\c' seems impossible yes, \c seems to mean something itself, some more examples of strange behaviour below too. The last two examples seems to work, escaping 'c' two times. irb(main):015:0> str = "a\b\c"" => "a\010\002" irb(main):001:0> str = 'a\b\c ' => "a\\b\\c " irb(main):002:0> str = "a\b\c" irb(main):003:0" irb(main):004:0" " => "a\010\002\n\n" irb(main):005:0> str = "a\b\d" => "a\010d" irb(main):006:0> str = 'a\b\d' => "a\\b\\d" irb(main):007:0> str = "a\b\\c" => "a\010\\c" irb(main):008:0> str = 'a\b\\c' => "a\\b\\c" Krekna 2006/5/19, Mike Stok : > On 19-May-06, at 11:53 AM, dblack@wobblini.net wrote: > > > Hi -- > > > > On Sat, 20 May 2006, Krekna Mektek wrote: > > > >> Can someone help me out with this, I can't put the string 'a\b\c' in > >> the variable str, which is strange, because I am working with the > >> PickAxe book, and this what should work (page 71, 2nd ed.) > >> > >> the two before seem to work, but the example in the book, 'a\b\c' > >> seems not. > >> This a bug? How come irb does not seem to understand the last quote? > >> > >> irb(main):021:0> str = 'a\b\c ' > >> => "a\\b\\c " > >> irb(main):022:0> str = 'a\bc' > >> => "a\\bc" > >> irb(main):023:0> str = 'a\b\c' > >> irb(main):024:0' > >> irb(main):025:0' ' > >> SyntaxError: compile error > >> (irb):25: unterminated string meets end of file > >> from (irb):25 > >> from :0 > > > > I've noticed that too. For some reason, '\c' seems to produce > > something other than a literal backslash-c sequence. I stumbled on > > that a month or so ago but I don't know why it happens. > > > > (Helpful answer, isn't it? :-) > > Idle speculation here. It looks like something is getting confused, > in double quoted strings \c is the beginning of a control sequence > > irb(main):004:0> "\cX" > => "\030" > > and that may be mis-handled by irb? > > Mike > > -- > > Mike Stok > http://www.stok.ca/~mike/ > > The "`Stok' disclaimers" apply. > > > > > >