GIF89a=( õ' 7IAXKgNgYvYx\%wh…hŽth%ˆs%—x¨}9®Œ©€&©‰%¶†(¹–.¹5·œD¹&Çš)ÇŸ5ǘ;Í£*È¡&Õ²)ׯ7×µ<Ñ»4ï°3ø‘HÖ§KͯT÷¨Yÿšqÿ»qÿÔFØ !ù ' !ÿ NETSCAPE2.0 , =( þÀ“pH,È¤rÉl:ŸÐ¨tJ­Z¯Ø¬vËíz¿à°xL.›Ïè´zÍn»ßð¸|N¯Ûïø¼~Ïïûÿ€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ ¡¢£¤¥¦§gª«ªE¯°¨¬ª±²Œ¹º¹E¾­”´ÂB¶¯ §Åȸ»ÑD¾¿Á•ÄÅ®° ÝH¾ÒLÀÆDÙ«D¶BÝïðÀ¾DÑÑÔTÌÍíH òGö¨A RÎڐ |¥ ٭&ºìE8œ¹kGÔAÞpx­a¶­ã R2XB®åE8I€Õ6Xî:vT)äžþÀq¦è³¥ì仕F~%xñ  4#ZÔ‰O|-4Bs‘X:= QÉ œš lºÒyXJŠGȦ|s hÏíK–3l7·B|¥$'7Jީܪ‰‡àá”Dæn=Pƒ ¤Òëí‰`䌨ljóá¯Éüv>á–Á¼5 ½.69ûϸd«­ºÀûnlv©‹ªîf{¬ÜãPbŸ  l5‘Ž¯pß ´ ˜3aÅùäI«O’ý·‘áÞ‡˜¾Æ‚ÙÏiÇÿ‹Àƒ #öó)pâš Þ½ ‘Ý{ó)vmÞü%D~ 6f s}ŃƒDØW Eþ`‡þ À…L8xá†ç˜{)x`X/> Ì}mø‚–RØ‘*|`D=‚Ø_ ^ð5 !_…'aä“OÚ—7âcð`D”Cx`ÝÂ¥ä‹éY¹—F¼¤¥Š?¡Õ™ n@`} lď’ÄÉ@4>ñd œ à‘vÒxNÃ×™@žd=ˆgsžG±æ ´²æud &p8Qñ)ˆ«lXD©øÜéAžHìySun jª×k*D¤LH] †¦§C™Jä–´Xb~ʪwStŽ6K,°£qÁœ:9ت:¨þªl¨@¡`‚ûÚ ».Û¬¯t‹ÆSÉ[:°=Š‹„‘Nåû”Ìî{¿ÂA ‡Rà›ÀÙ6úë°Ÿð0Ä_ ½;ÃϱîÉì^ÇÛÇ#Ëë¼ôº!±Ä˜íUîÅÇ;0L1óÁµö«p% AÀºU̬ݵ¼á%霼€‡¯Á~`ÏG¯»À× ­²± =4ªnpð3¾¤³¯­ü¾¦îuÙuµÙ®|%2ÊIÿür¦#0·ÔJ``8È@S@5ê¢ ö×Þ^`8EÜ]ý.뜃Âç 7 ú ȉÞj œ½Dç zý¸iþœÑÙûÄë!ˆÞÀl§Ïw‹*DçI€nEX¯¬¼ &A¬Go¼QföõFç°¯;é¦÷îŽêJ°îúôF5¡ÌQ|îúöXªæ»TÁÏyñêï]ê² o óÎC=öõ›ÒÓPB@ D×½œä(>èCÂxŽ`±«Ÿ–JЀ»Û á¤±p+eE0`ëŽ`A Ú/NE€Ø†À9‚@¤à H½7”à‡%B‰`Àl*ƒó‘–‡8 2ñ%¸ —€:Ù1Á‰E¸àux%nP1ð!‘ðC)¾P81lÑɸF#ˆ€{´âé°ÈB„0>±û °b¡Š´±O‚3È–Ù()yRpbµ¨E.Z‘D8ÊH@% òŒx+%Ù˜Æcü »¸˜fõ¬b·d`Fê™8èXH"ÉÈ-±|1Ô6iI, 2““¬$+](A*jÐ QTÂo‰.ÛU슬Œã„Ž`¯SN¡–¶Äåyše¯ª’­¬‚´b¦Éož œ)åyâ@Ì®3 ÎtT̉°&Ø+žLÀf"Ø-|žçÔ>‡Ðv¦Ðžì\‚ Q1)Ž@Žh#aP72”ˆ™¨$‚ !ù " , =( …7IAXG]KgNgYvYxR"k\%w]'}hŽth%ˆg+ˆs%—r.—m3šx3˜x¨}9®€&©€+¨‡7§‰%¶†(¹–.¹œD¹&ǘ;Í•&ײ)×»4ïÌ6ò§KÍ þ@‘pH,È¤rÉl:ŸÐ¨tJ­Z¯Ø¬vËíz¿à°xL.›Ïè´zÍn»ßð¸|N¯Ûïø¼~Ïïûÿ€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ ¡¢£¤¥¦§g «¬ E ±± ¨­¶°ººE Á´”·®C¬²§Ç¶Œ»ÓDÃÕƷ¯Ê±H½ºM×ÁGÚ¬D¶BËÁ½î½DÓôTÏÛßîG»ôõC×CÌ l&âž:'òtU³6ɹ#·Ø)€'Ü.6±&ëÍÈ» K(8p0N?!æ2"ÛˆNIJX>R¼ÐO‚M '¡¨2¸*Ÿþ>#n↠å@‚<[:¡Iïf’ ¤TÚ˘CdbÜÙ“[«ŽEú5MBo¤×@€`@„€Êt W-3 ¶Ÿ¡BíêäjIÝ…Eò9[T…$íêﯧ„…•s»Óȳ¹€ÅÚdc®UUρ#±Ùïldj?´í¼²`\ŽÁðÞu|3'ÖŒ]ë6 ¶S#²‡˜FKLÈ *N E´‘áäŠ$˜›eÄYD„ºq«.è촁ƒs \-ÔjA 9²õ÷å- üúM[Âx(ís÷ì®x€|í¡Ù’p¦‚ ŽkÛTÇDpE@WÜ ²Ç]kŠ1¨ þ€·Yb ÓÁ‰l°*n0 ç™—žzBdОu¾7ĉBl€â‰-ºx~|UåU‰  h*Hœ|e"#"?vpÄiŠe6^ˆ„+qâŠm8 #VÇá ‘å–ÄV„œ|Šè•m"сœn|@›U¶ÆΞ—Špb¥G¨ED”€±Úê2FÌIç? >Éxå Œ± ¡¤„%‘žjŸ‘ꄯ<Ìaà9ijÐ2˜D¦È&›†Z`‚å]wþ¼Â:ç6àB¤7eFJ|õÒ§Õ,¨äàFÇ®cS·Ê¶+B°,‘Þ˜ºNûãØ>PADÌHD¹æž«ÄÀnÌ¥}­#Ë’ë QÀÉSÌÂÇ2ÌXÀ{æk²lQÁ2«ÊðÀ¯w|2Í h‹ÄÂG€,m¾¶ë3ÐÙ6-´ÅE¬L°ÆIij*K½ÀÇqï`DwVÍQXœÚÔpeœ±¬Ñ q˜§Tœ½µƒ°Œìu Â<¶aØ*At¯lmEØ ü ôÛN[P1ÔÛ¦­±$ÜÆ@`ùåDpy¶yXvCAyåB`ŽD¶ 0QwG#¯ æš[^Äþ $ÀÓÝǦ{„L™[±úKÄgÌ;ï£S~¹ìGX.ôgoT.»åˆ°ùŸûù¡?1zö¦Ÿž:ÅgÁ|ìL¹ „®£œŠ‚à0œ]PÁ^p F<"•ç?!,ñ‡N4—…PÄ Á„ö¨Û:Tè@hÀ‹%táÿ:ø-žI<`þ‹p I….)^ 40D#p@ƒj4–؀:²‰1Øâr˜¼F2oW¼#Z†;$Q q” ‘ ÂK¦ñNl#29 !’F@¥Bh·ᏀL!—XFóLH‘Kh¤.«hE&JòG¨¥<™WN!€ÑÙÚˆY„@†>Œž19J" 2,/ &.GXB%ÌRÈ9B6¹W]’î×ÔW¥’IÎ$ ñ‹ÓŒE8YÆ ¼³™ñA5“à®Q.aŸB€&Ø©³ JÁ—! ¦t)K%tœ-¦JF bòNMxLôþ)ÐR¸Ð™‘ èÝ6‘O!THÌ„HÛ ‰ !ù ) , =( …AXKgNgYvYxR"k\%wh…hŽh%ˆg+ˆs%—r.—x3˜x¨}9®€&©€+¨Œ,©‡7§‰%¶†(¹–.¹5·&Çš)ǘ;Í•&×£*Ȳ)ׯ7×»4ï°3øÌ6ò‘HÖ§KÍ»Hó¯T÷¨Yÿ»qÿÇhÿ þÀ”pH,È¤rÉl:ŸÐ¨tJ­Z¯Ø¬vËíz¿à°xL.›Ïè´zÍn»ßð¸|N¯Ûïø¼~Ïïûÿ€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ ¡¢£¤¥¦§g ª« E$±²¨ª­ · °²½$E$ÂÕ««D· Í ¿¦Ç¶¸ÌŒ¾³CÃÅÆ E ééH½MÛÂGâªD­ çBêêϾD²ÒaÀà€Š1r­ðÓ¤ ÔožzU!L˜C'¾yW½UGtäÇïÙllê0×àÂuGþ)AÀs[þ·xì ÁxO%ƒûX2ó—  P£n›R/¡ÑšHše+êDm?# —‘Ç£6¡8íJ¡ŸâDiäªM¥Ö„ôj“¬¹£5oQ7°- <‡ *´lãÓŒ2r/a!l)dÈ A™ÈE¢ôÔ͆…ð ;Ö˜c ¡%ß‚’Ùˆâ¸b½—pe~C"BíëÚHïeF2§æŠ8qb t_`urŠeü wÅu3êæPv§h•"ß`íÍxçLĹÜÖ3á  ~Öº“®›¸ÏMDfJÙ °„ÛµáWõ%§œ‚à©–‚X Ó؁)@®Ñ›Eþ´wëuÅSxb8y\mÖzœ¥§ZbºE—ÂLªÌw!y(>¡™wú=Ç|ÅÝs¢d €CÁW)HÜcC$€L Ä7„r.á\{)@ð` @ äXÈ$PD” `šaG:§æˆOˆ72EÐamn]ù"ŒcÊxÑŒ° &dR8`g«iÙŸLR!¦P …d’ä¡“¦ðÎTƒ¦ià|À _ ¥ Qi#¦Šg›Æ ›noMµ ›V ã£)p ç£ÎW…š=Âeªk§†j„ ´®1ß²sÉxéW«jšl|0¯B0Û, \jÛ´›6±¬¶C ÛíWþï|ëÙ‹¸ñzĸV {ì;Ýñn¼òVˆm³I¼³.Ðã¤PN¥ ²µ¼„µCã+¹ÍByî£Ñ¾HŸ›ëê 7ìYÆFTk¨SaoaY$Dµœìï¿Ã29RÈkt Çïfñ ÇÒ:ÀÐSp¹3ÇI¨â¥DZÄ ü9Ïýögñ½­uÔ*3)O‘˜Ö[_hv ,àî×Et Ÿé¶BH€ Õ[ü±64M@ÔSÌM7dÐl5-ÄÙU܍´©zߌ3Ô€3ž„ „ ¶ÛPô½5×g› êÚ˜kN„Ý…0Îj4€Ìë°“#{þÕ3S2çKÜ'ợlø¼Ú2K{° {Û¶?žm𸧠ËI¼nEò='êüóºè^üæÃ_Û=°óž‚ì#Oý¿Í'¡½áo..ÏYìnüñCœO±Áa¿¢Kô½o,üÄËbö²çºíï{ËC Ú— "”Ï{ËK ÍÒw„õ±Oz dÕ¨à:$ ƒô—«v»] A#ð «€¿šéz)Rx׿ˆ¥‚d``èw-îyÏf×K!ð€þ­Ð|ìPľ„=Ì`ý(f” 'Pa ¥ÐBJa%Ðâf§„%Š¡}FàáÝ×6>ÉäŠG"éŽè=ø!oŠ°^FP¼Ø©Q„ÀCÙÁ`(Ž\ÄÝ® ©Â$<n@dÄ E#ììUÒI! ‚#lù‹`k¦ÐÇ'Rró’ZýNBÈMF Í[¤+‹ðɈ-áwj¨¥þ8¾rá ,VÂh„"|½œ=×G_¦Ñ™EØ 0i*%̲˜Æda0mV‚k¾)›;„&6 p>ÓjK “¦Ç# âDÂ:ûc?:R Ó¬fÞéI-Ì“•Ã<ä=™Ï7˜3œ¨˜c2ŒW ,ˆ”8(T™P‰F¡Jhç"‚ ; 403WebShell
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Current File : /opt/alt/ruby32/share/ruby//erb.rb
# -*- coding: us-ascii -*-
# frozen_string_literal: true
# = ERB -- Ruby Templating
#
# Author:: Masatoshi SEKI
# Documentation:: James Edward Gray II, Gavin Sinclair, and Simon Chiang
#
# See ERB for primary documentation and ERB::Util for a couple of utility
# routines.
#
# Copyright (c) 1999-2000,2002,2003 Masatoshi SEKI
#
# You can redistribute it and/or modify it under the same terms as Ruby.

require 'cgi/util'
require 'erb/version'
require 'erb/compiler'
require 'erb/def_method'
require 'erb/util'

#
# = ERB -- Ruby Templating
#
# == Introduction
#
# ERB provides an easy to use but powerful templating system for Ruby.  Using
# ERB, actual Ruby code can be added to any plain text document for the
# purposes of generating document information details and/or flow control.
#
# A very simple example is this:
#
#   require 'erb'
#
#   x = 42
#   template = ERB.new <<-EOF
#     The value of x is: <%= x %>
#   EOF
#   puts template.result(binding)
#
# <em>Prints:</em> The value of x is: 42
#
# More complex examples are given below.
#
#
# == Recognized Tags
#
# ERB recognizes certain tags in the provided template and converts them based
# on the rules below:
#
#   <% Ruby code -- inline with output %>
#   <%= Ruby expression -- replace with result %>
#   <%# comment -- ignored -- useful in testing %> (`<% #` doesn't work. Don't use Ruby comments.)
#   % a line of Ruby code -- treated as <% line %> (optional -- see ERB.new)
#   %% replaced with % if first thing on a line and % processing is used
#   <%% or %%> -- replace with <% or %> respectively
#
# All other text is passed through ERB filtering unchanged.
#
#
# == Options
#
# There are several settings you can change when you use ERB:
# * the nature of the tags that are recognized;
# * the binding used to resolve local variables in the template.
#
# See the ERB.new and ERB#result methods for more detail.
#
# == Character encodings
#
# ERB (or Ruby code generated by ERB) returns a string in the same
# character encoding as the input string.  When the input string has
# a magic comment, however, it returns a string in the encoding specified
# by the magic comment.
#
#   # -*- coding: utf-8 -*-
#   require 'erb'
#
#   template = ERB.new <<EOF
#   <%#-*- coding: Big5 -*-%>
#     \_\_ENCODING\_\_ is <%= \_\_ENCODING\_\_ %>.
#   EOF
#   puts template.result
#
# <em>Prints:</em> \_\_ENCODING\_\_ is Big5.
#
#
# == Examples
#
# === Plain Text
#
# ERB is useful for any generic templating situation.  Note that in this example, we use the
# convenient "% at start of line" tag, and we quote the template literally with
# <tt>%q{...}</tt> to avoid trouble with the backslash.
#
#   require "erb"
#
#   # Create template.
#   template = %q{
#     From:  James Edward Gray II <[email protected]>
#     To:  <%= to %>
#     Subject:  Addressing Needs
#
#     <%= to[/\w+/] %>:
#
#     Just wanted to send a quick note assuring that your needs are being
#     addressed.
#
#     I want you to know that my team will keep working on the issues,
#     especially:
#
#     <%# ignore numerous minor requests -- focus on priorities %>
#     % priorities.each do |priority|
#       * <%= priority %>
#     % end
#
#     Thanks for your patience.
#
#     James Edward Gray II
#   }.gsub(/^  /, '')
#
#   message = ERB.new(template, trim_mode: "%<>")
#
#   # Set up template data.
#   to = "Community Spokesman <spokesman@ruby_community.org>"
#   priorities = [ "Run Ruby Quiz",
#                  "Document Modules",
#                  "Answer Questions on Ruby Talk" ]
#
#   # Produce result.
#   email = message.result
#   puts email
#
# <i>Generates:</i>
#
#   From:  James Edward Gray II <[email protected]>
#   To:  Community Spokesman <spokesman@ruby_community.org>
#   Subject:  Addressing Needs
#
#   Community:
#
#   Just wanted to send a quick note assuring that your needs are being addressed.
#
#   I want you to know that my team will keep working on the issues, especially:
#
#       * Run Ruby Quiz
#       * Document Modules
#       * Answer Questions on Ruby Talk
#
#   Thanks for your patience.
#
#   James Edward Gray II
#
# === Ruby in HTML
#
# ERB is often used in <tt>.rhtml</tt> files (HTML with embedded Ruby).  Notice the need in
# this example to provide a special binding when the template is run, so that the instance
# variables in the Product object can be resolved.
#
#   require "erb"
#
#   # Build template data class.
#   class Product
#     def initialize( code, name, desc, cost )
#       @code = code
#       @name = name
#       @desc = desc
#       @cost = cost
#
#       @features = [ ]
#     end
#
#     def add_feature( feature )
#       @features << feature
#     end
#
#     # Support templating of member data.
#     def get_binding
#       binding
#     end
#
#     # ...
#   end
#
#   # Create template.
#   template = %{
#     <html>
#       <head><title>Ruby Toys -- <%= @name %></title></head>
#       <body>
#
#         <h1><%= @name %> (<%= @code %>)</h1>
#         <p><%= @desc %></p>
#
#         <ul>
#           <% @features.each do |f| %>
#             <li><b><%= f %></b></li>
#           <% end %>
#         </ul>
#
#         <p>
#           <% if @cost < 10 %>
#             <b>Only <%= @cost %>!!!</b>
#           <% else %>
#              Call for a price, today!
#           <% end %>
#         </p>
#
#       </body>
#     </html>
#   }.gsub(/^  /, '')
#
#   rhtml = ERB.new(template)
#
#   # Set up template data.
#   toy = Product.new( "TZ-1002",
#                      "Rubysapien",
#                      "Geek's Best Friend!  Responds to Ruby commands...",
#                      999.95 )
#   toy.add_feature("Listens for verbal commands in the Ruby language!")
#   toy.add_feature("Ignores Perl, Java, and all C variants.")
#   toy.add_feature("Karate-Chop Action!!!")
#   toy.add_feature("Matz signature on left leg.")
#   toy.add_feature("Gem studded eyes... Rubies, of course!")
#
#   # Produce result.
#   rhtml.run(toy.get_binding)
#
# <i>Generates (some blank lines removed):</i>
#
#    <html>
#      <head><title>Ruby Toys -- Rubysapien</title></head>
#      <body>
#
#        <h1>Rubysapien (TZ-1002)</h1>
#        <p>Geek's Best Friend!  Responds to Ruby commands...</p>
#
#        <ul>
#            <li><b>Listens for verbal commands in the Ruby language!</b></li>
#            <li><b>Ignores Perl, Java, and all C variants.</b></li>
#            <li><b>Karate-Chop Action!!!</b></li>
#            <li><b>Matz signature on left leg.</b></li>
#            <li><b>Gem studded eyes... Rubies, of course!</b></li>
#        </ul>
#
#        <p>
#             Call for a price, today!
#        </p>
#
#      </body>
#    </html>
#
#
# == Notes
#
# There are a variety of templating solutions available in various Ruby projects.
# For example, RDoc, distributed with Ruby, uses its own template engine, which
# can be reused elsewhere.
#
# Other popular engines could be found in the corresponding
# {Category}[https://www.ruby-toolbox.com/categories/template_engines] of
# The Ruby Toolbox.
#
class ERB
  Revision = '$Date::                           $' # :nodoc: #'
  deprecate_constant :Revision

  # Returns revision information for the erb.rb module.
  def self.version
    VERSION
  end

  #
  # Constructs a new ERB object with the template specified in _str_.
  #
  # An ERB object works by building a chunk of Ruby code that will output
  # the completed template when run.
  #
  # If _trim_mode_ is passed a String containing one or more of the following
  # modifiers, ERB will adjust its code generation as listed:
  #
  #     %  enables Ruby code processing for lines beginning with %
  #     <> omit newline for lines starting with <% and ending in %>
  #     >  omit newline for lines ending in %>
  #     -  omit blank lines ending in -%>
  #
  # _eoutvar_ can be used to set the name of the variable ERB will build up
  # its output in.  This is useful when you need to run multiple ERB
  # templates through the same binding and/or when you want to control where
  # output ends up.  Pass the name of the variable to be used inside a String.
  #
  # === Example
  #
  #  require "erb"
  #
  #  # build data class
  #  class Listings
  #    PRODUCT = { :name => "Chicken Fried Steak",
  #                :desc => "A well messages pattie, breaded and fried.",
  #                :cost => 9.95 }
  #
  #    attr_reader :product, :price
  #
  #    def initialize( product = "", price = "" )
  #      @product = product
  #      @price = price
  #    end
  #
  #    def build
  #      b = binding
  #      # create and run templates, filling member data variables
  #      ERB.new(<<-'END_PRODUCT'.gsub(/^\s+/, ""), trim_mode: "", eoutvar: "@product").result b
  #        <%= PRODUCT[:name] %>
  #        <%= PRODUCT[:desc] %>
  #      END_PRODUCT
  #      ERB.new(<<-'END_PRICE'.gsub(/^\s+/, ""), trim_mode: "", eoutvar: "@price").result b
  #        <%= PRODUCT[:name] %> -- <%= PRODUCT[:cost] %>
  #        <%= PRODUCT[:desc] %>
  #      END_PRICE
  #    end
  #  end
  #
  #  # setup template data
  #  listings = Listings.new
  #  listings.build
  #
  #  puts listings.product + "\n" + listings.price
  #
  # _Generates_
  #
  #  Chicken Fried Steak
  #  A well messages pattie, breaded and fried.
  #
  #  Chicken Fried Steak -- 9.95
  #  A well messages pattie, breaded and fried.
  #
  def initialize(str, safe_level=NOT_GIVEN, legacy_trim_mode=NOT_GIVEN, legacy_eoutvar=NOT_GIVEN, trim_mode: nil, eoutvar: '_erbout')
    # Complex initializer for $SAFE deprecation at [Feature #14256]. Use keyword arguments to pass trim_mode or eoutvar.
    if safe_level != NOT_GIVEN
      warn 'Passing safe_level with the 2nd argument of ERB.new is deprecated. Do not use it, and specify other arguments as keyword arguments.', uplevel: 1
    end
    if legacy_trim_mode != NOT_GIVEN
      warn 'Passing trim_mode with the 3rd argument of ERB.new is deprecated. Use keyword argument like ERB.new(str, trim_mode: ...) instead.', uplevel: 1
      trim_mode = legacy_trim_mode
    end
    if legacy_eoutvar != NOT_GIVEN
      warn 'Passing eoutvar with the 4th argument of ERB.new is deprecated. Use keyword argument like ERB.new(str, eoutvar: ...) instead.', uplevel: 1
      eoutvar = legacy_eoutvar
    end

    compiler = make_compiler(trim_mode)
    set_eoutvar(compiler, eoutvar)
    @src, @encoding, @frozen_string = *compiler.compile(str)
    @filename = nil
    @lineno = 0
    @_init = self.class.singleton_class
  end
  NOT_GIVEN = Object.new
  private_constant :NOT_GIVEN

  ##
  # Creates a new compiler for ERB.  See ERB::Compiler.new for details

  def make_compiler(trim_mode)
    ERB::Compiler.new(trim_mode)
  end

  # The Ruby code generated by ERB
  attr_reader :src

  # The encoding to eval
  attr_reader :encoding

  # The optional _filename_ argument passed to Kernel#eval when the ERB code
  # is run
  attr_accessor :filename

  # The optional _lineno_ argument passed to Kernel#eval when the ERB code
  # is run
  attr_accessor :lineno

  #
  # Sets optional filename and line number that will be used in ERB code
  # evaluation and error reporting. See also #filename= and #lineno=
  #
  #   erb = ERB.new('<%= some_x %>')
  #   erb.render
  #   # undefined local variable or method `some_x'
  #   #   from (erb):1
  #
  #   erb.location = ['file.erb', 3]
  #   # All subsequent error reporting would use new location
  #   erb.render
  #   # undefined local variable or method `some_x'
  #   #   from file.erb:4
  #
  def location=((filename, lineno))
    @filename = filename
    @lineno = lineno if lineno
  end

  #
  # Can be used to set _eoutvar_ as described in ERB::new.  It's probably
  # easier to just use the constructor though, since calling this method
  # requires the setup of an ERB _compiler_ object.
  #
  def set_eoutvar(compiler, eoutvar = '_erbout')
    compiler.put_cmd = "#{eoutvar}.<<"
    compiler.insert_cmd = "#{eoutvar}.<<"
    compiler.pre_cmd = ["#{eoutvar} = +''"]
    compiler.post_cmd = [eoutvar]
  end

  # Generate results and print them. (see ERB#result)
  def run(b=new_toplevel)
    print self.result(b)
  end

  #
  # Executes the generated ERB code to produce a completed template, returning
  # the results of that code.  (See ERB::new for details on how this process
  # can be affected by _safe_level_.)
  #
  # _b_ accepts a Binding object which is used to set the context of
  # code evaluation.
  #
  def result(b=new_toplevel)
    unless @_init.equal?(self.class.singleton_class)
      raise ArgumentError, "not initialized"
    end
    eval(@src, b, (@filename || '(erb)'), @lineno)
  end

  # Render a template on a new toplevel binding with local variables specified
  # by a Hash object.
  def result_with_hash(hash)
    b = new_toplevel(hash.keys)
    hash.each_pair do |key, value|
      b.local_variable_set(key, value)
    end
    result(b)
  end

  ##
  # Returns a new binding each time *near* TOPLEVEL_BINDING for runs that do
  # not specify a binding.

  def new_toplevel(vars = nil)
    b = TOPLEVEL_BINDING
    if vars
      vars = vars.select {|v| b.local_variable_defined?(v)}
      unless vars.empty?
        return b.eval("tap {|;#{vars.join(',')}| break binding}")
      end
    end
    b.dup
  end
  private :new_toplevel

  # Define _methodname_ as instance method of _mod_ from compiled Ruby source.
  #
  # example:
  #   filename = 'example.rhtml'   # 'arg1' and 'arg2' are used in example.rhtml
  #   erb = ERB.new(File.read(filename))
  #   erb.def_method(MyClass, 'render(arg1, arg2)', filename)
  #   print MyClass.new.render('foo', 123)
  def def_method(mod, methodname, fname='(ERB)')
    src = self.src.sub(/^(?!#|$)/) {"def #{methodname}\n"} << "\nend\n"
    mod.module_eval do
      eval(src, binding, fname, -1)
    end
  end

  # Create unnamed module, define _methodname_ as instance method of it, and return it.
  #
  # example:
  #   filename = 'example.rhtml'   # 'arg1' and 'arg2' are used in example.rhtml
  #   erb = ERB.new(File.read(filename))
  #   erb.filename = filename
  #   MyModule = erb.def_module('render(arg1, arg2)')
  #   class MyClass
  #     include MyModule
  #   end
  def def_module(methodname='erb')
    mod = Module.new
    def_method(mod, methodname, @filename || '(ERB)')
    mod
  end

  # Define unnamed class which has _methodname_ as instance method, and return it.
  #
  # example:
  #   class MyClass_
  #     def initialize(arg1, arg2)
  #       @arg1 = arg1;  @arg2 = arg2
  #     end
  #   end
  #   filename = 'example.rhtml'  # @arg1 and @arg2 are used in example.rhtml
  #   erb = ERB.new(File.read(filename))
  #   erb.filename = filename
  #   MyClass = erb.def_class(MyClass_, 'render()')
  #   print MyClass.new('foo', 123).render()
  def def_class(superklass=Object, methodname='result')
    cls = Class.new(superklass)
    def_method(cls, methodname, @filename || '(ERB)')
    cls
  end
end

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