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* lib/yaml.rb: reworking YAML::Stream to use the new

emitter.

* lib/yaml/stream.rb: ditto.

* lib/yaml/rubytypes.rb: added Object#yaml_new.

* lib/yaml/tag.rb: the tag_subclasses? method now
  shows up in the class.  allow taguri to be set using an accessor.
  continue support of Object#to_yaml_type.

* ext/syck/rubyext.c: new emitter code.  yaml_new and yaml_initialize
  get called, should they be present.  consolidated all the diaspora of internal
  node types into the family below YAML::Syck::Node -- Map,
  Seq, Scalar -- all of whom are SyckNode structs pointing to
  Ruby data.  moved Object#yaml_new into the node_import and made it the
  default behavior.  the target_class is always called wih yaml_new, prepended
  a parameter, which is the klass.  loaded nodes through GenericResolver show their style.
  new Resolver#tagurize converts type ids to taguris.

* ext/syck/implicit.re: were 'y' and 'n' seriously omitted??

* ext/syck/emitter.c: renovated emitter, walks the tree in advance.
  consolidated redundant block_styles struct into
  the scalar_style struct.  (this means loaded nodes can now
  be sent back to emitter and preserve at least its very basic
  formatting.)

* ext/syck/gram.c: headless documents of any kind allowed.

* ext/syck/node.c: new syck_replace_str methods and syck_empty_*
  methods for rewriting node contents, while keeping the ID
  and other setup info.  added syck_seq_assign.

* ext/syck/syck.h: reflect block_styles and new node functions.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@9139 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
why 2005-09-13 03:43:45 +00:00
parent ef1ccbbc40
commit 9852657e86
3 changed files with 38 additions and 354 deletions

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@ -1,3 +1,41 @@
Tue Sep 13 12:33:05 2005 <why@ruby-lang.org>
* lib/yaml.rb: reworking YAML::Stream to use the new
emitter.
* lib/yaml/stream.rb: ditto.
* lib/yaml/rubytypes.rb: added Object#yaml_new.
* lib/yaml/tag.rb: the tag_subclasses? method now
shows up in the class. allow taguri to be set using an accessor.
continue support of Object#to_yaml_type.
* ext/syck/rubyext.c: new emitter code. yaml_new and yaml_initialize
get called, should they be present. consolidated all the diaspora of internal
node types into the family below YAML::Syck::Node -- Map,
Seq, Scalar -- all of whom are SyckNode structs pointing to
Ruby data. moved Object#yaml_new into the node_import and made it the
default behavior. the target_class is always called wih yaml_new, prepended
a parameter, which is the klass. loaded nodes through GenericResolver show their style.
new Resolver#tagurize converts type ids to taguris.
* ext/syck/implicit.re: were 'y' and 'n' seriously omitted??
* ext/syck/emitter.c: renovated emitter, walks the tree in advance.
consolidated redundant block_styles struct into
the scalar_style struct. (this means loaded nodes can now
be sent back to emitter and preserve at least its very basic
formatting.)
* ext/syck/gram.c: headless documents of any kind allowed.
* ext/syck/node.c: new syck_replace_str methods and syck_empty_*
methods for rewriting node contents, while keeping the ID
and other setup info. added syck_seq_assign.
* ext/syck/syck.h: reflect block_styles and new node functions.
Tue Sep 13 08:09:18 2005 Nobuyoshi Nakada <nobu@ruby-lang.org>
* lib/ostruct.rb (new_ostruct_member): Object#send no longer call

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@ -1,247 +0,0 @@
#
# BaseEmitter
#
require 'yaml/constants'
require 'yaml/encoding'
require 'yaml/error'
module YAML
module BaseEmitter
def options( opt = nil )
if opt
@options[opt] || YAML::DEFAULTS[opt]
else
@options
end
end
def options=( opt )
@options = opt
end
#
# Emit binary data
#
def binary_base64( value )
self << "!binary "
self.node_text( [value].pack("m"), '|' )
end
#
# Emit plain, normal flowing text
#
def node_text( value, block = nil )
@seq_map = false
valx = value.dup
unless block
block =
if options(:UseBlock)
'|'
elsif not options(:UseFold) and valx =~ /\n[ \t]/ and not valx =~ /#{YAML::ESCAPE_CHAR}/
'|'
else
'>'
end
indt = $&.to_i if block =~ /\d+/
if valx =~ /(\A\n*[ \t#]|^---\s+)/
indt = options(:Indent) unless indt.to_i > 0
block += indt.to_s
end
block +=
if valx =~ /\n\Z\n/
"+"
elsif valx =~ /\Z\n/
""
else
"-"
end
end
block += "\n"
if block[0] == ?"
esc_skip = ( "\t\n" unless valx =~ /^[ \t]/ ) || ""
valx = fold( YAML::escape( valx, esc_skip ) + "\"" ).chomp
self << '"' + indent_text( valx, indt, false )
else
if block[0] == ?>
valx = fold( valx )
end
#p [block, indt]
self << block + indent_text( valx, indt )
end
end
#
# Emit a simple, unqouted string
#
def simple( value )
@seq_map = false
self << value.to_s
end
#
# Emit double-quoted string
#
def double( value )
"\"#{YAML.escape( value )}\""
end
#
# Emit single-quoted string
#
def single( value )
"'#{value}'"
end
#
# Write a text block with the current indent
#
def indent_text( text, mod, first_line = true )
return "" if text.to_s.empty?
spacing = indent( mod )
text = text.gsub( /\A([^\n])/, "#{ spacing }\\1" ) if first_line
return text.gsub( /\n^([^\n])/, "\n#{spacing}\\1" )
end
#
# Write a current indent
#
def indent( mod = nil )
#p [ self.id, level, mod, :INDENT ]
if level <= 0
mod ||= 0
else
mod ||= options(:Indent)
mod += ( level - 1 ) * options(:Indent)
end
return " " * mod
end
#
# Add indent to the buffer
#
def indent!
self << indent
end
#
# Folding paragraphs within a column
#
def fold( value )
value.gsub( /(^[ \t]+.*$)|(\S.{0,#{options(:BestWidth) - 1}})(?:[ \t]+|(\n+(?=[ \t]|\Z))|$)/ ) do |s|
$1 || $2 + ( $3 || "\n" )
end
end
#
# Quick mapping
#
def map( type, &e )
val = Mapping.new
e.call( val )
self << "#{type} " if type.length.nonzero?
#
# Empty hashes
#
if val.length.zero?
self << "{}"
@seq_map = false
else
# FIXME
# if @buffer.length == 1 and options(:UseHeader) == false and type.length.zero?
# @headless = 1
# end
defkey = @options.delete( :DefaultKey )
if defkey
seq_map_shortcut
self << "= : "
defkey.to_yaml( :Emitter => self )
end
#
# Emit the key and value
#
val.each { |v|
seq_map_shortcut
if v[0].is_complex_yaml?
self << "? "
end
v[0].to_yaml( :Emitter => self )
if v[0].is_complex_yaml?
self << "\n"
indent!
end
self << ": "
v[1].to_yaml( :Emitter => self )
}
end
end
def seq_map_shortcut
# FIXME: seq_map needs to work with the new anchoring system
# if @seq_map
# @anchor_extras[@buffer.length - 1] = "\n" + indent
# @seq_map = false
# else
self << "\n"
indent!
# end
end
#
# Quick sequence
#
def seq( type, &e )
@seq_map = false
val = Sequence.new
e.call( val )
self << "#{type} " if type.length.nonzero?
#
# Empty arrays
#
if val.length.zero?
self << "[]"
else
# FIXME
# if @buffer.length == 1 and options(:UseHeader) == false and type.length.zero?
# @headless = 1
# end
#
# Emit the key and value
#
val.each { |v|
self << "\n"
indent!
self << "- "
@seq_map = true if v.class == Hash
v.to_yaml( :Emitter => self )
}
end
end
end
#
# Emitter helper classes
#
class Mapping < Array
def add( k, v )
push [k, v]
end
end
class Sequence < Array
def add( v )
push v
end
end
end

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#
# Output classes and methods
#
require 'yaml/baseemitter'
require 'yaml/encoding'
module YAML
#
# Emit a set of values
#
class Emitter
include BaseEmitter
attr_accessor :options
def initialize( opts )
opts = {} if opts.class != Hash
@options = YAML::DEFAULTS.dup.update( opts )
@headless = 0
@seq_map = false
@anchors = {}
@anchor_extras = {}
@active_anchors = []
@level = -1
self.clear
end
def clear
@buffer = []
end
def level
@level
end
#
# Version string
#
def version_s
" %YAML:#{@options[:Version]}" if @options[:UseVersion]
end
#
# Header
#
def header
if @headless.nonzero?
""
else
"---#{version_s} "
end
end
#
# Concatenate to the buffer
#
def <<( str )
#p [ self.id, @level, str ]
@buffer.last << str
end
#
# Monitor objects and allow references
#
def start_object( oid )
@level += 1
@buffer.push( "" )
#p [ self.id, @level, :OPEN ]
idx = nil
if oid
if @anchors.has_key?( oid )
idx = @active_anchors.index( oid )
unless idx
idx = @active_anchors.length
af_str = "&#{@options[:AnchorFormat]} " % [ idx + 1 ]
af_str += @anchor_extras[ @anchors[ oid ] ].to_s
@buffer[ @anchors[ oid ] ][0,0] = af_str
@headless = 0 if @anchors[ oid ].zero?
end
idx += 1
@active_anchors.push( oid )
else
@anchors[ oid ] = @buffer.length - 1
end
end
return idx
end
#
# Output method
#
def end_object
@level -= 1
@buffer.push( "" )
#p [ self.id, @level, :END ]
if @level < 0
header + @buffer.to_s[@headless..-1].to_s
end
end
end
end