diff options
Diffstat (limited to 'lib')
-rw-r--r-- | lib/pp.rb | 13 |
1 files changed, 12 insertions, 1 deletions
@@ -61,6 +61,16 @@ require 'prettyprint' # Tanaka Akira <akr@fsij.org> class PP < PrettyPrint + # Returns the usable width for +out+. + # As the width of +out+: + # 1. If +out+ is assigned to a tty device, its width is used. + # 2. Otherwise, or it could not get the value, the +COLUMN+ + # environment variable is assumed to be set to the width. + # 3. If +COLUMN+ is not set to a non-zero number, 80 is assumed. + # + # And finally, returns the above width value - 1. + # * This -1 is for Windows command prompt, which moves the cursor to + # the next line if it reaches the last column. def PP.width_for(out) begin require 'io/console' @@ -74,7 +84,8 @@ class PP < PrettyPrint # +width+ columns in width. # # If +out+ is omitted, <code>$></code> is assumed. - # If +width+ is omitted, 79 is assumed. + # If +width+ is omitted, the width of +out+ is assumed (see + # width_for). # # PP.pp returns +out+. def PP.pp(obj, out=$>, width=width_for(out)) |