diff options
Diffstat (limited to 'ruby_1_9_3/lib/erb.rb')
| -rw-r--r-- | ruby_1_9_3/lib/erb.rb | 988 |
1 files changed, 0 insertions, 988 deletions
diff --git a/ruby_1_9_3/lib/erb.rb b/ruby_1_9_3/lib/erb.rb deleted file mode 100644 index bb47943a86..0000000000 --- a/ruby_1_9_3/lib/erb.rb +++ /dev/null @@ -1,988 +0,0 @@ -# = 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. - -# -# = 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 %> -# % 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 value of <tt>$SAFE</tt> under which the template is run; -# * 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 <james@grayproductions.net> -# 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, 0, "%<>") -# -# # 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 <james@grayproductions.net> -# 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: -# * ERB's big brother, eRuby, works the same but is written in C for speed; -# * Amrita (smart at producing HTML/XML); -# * cs/Template (written in C for speed); -# * RDoc, distributed with Ruby, uses its own template engine, which can be reused elsewhere; -# * and others; search the RAA. -# -# Rails, the web application framework, uses ERB to create views. -# -class ERB - Revision = '$Date:: $' #' - - # Returns revision information for the erb.rb module. - def self.version - "erb.rb [2.1.0 #{ERB::Revision.split[1]}]" - end -end - -#-- -# ERB::Compiler -class ERB - # = ERB::Compiler - # - # Compiles ERB templates into Ruby code; the compiled code produces the - # template result when evaluated. ERB::Compiler provides hooks to define how - # generated output is handled. - # - # Internally ERB does something like this to generate the code returned by - # ERB#src: - # - # compiler = ERB::Compiler.new('<>') - # compiler.pre_cmd = ["_erbout=''"] - # compiler.put_cmd = "_erbout.concat" - # compiler.insert_cmd = "_erbout.concat" - # compiler.post_cmd = ["_erbout"] - # - # code, enc = compiler.compile("Got <%= obj %>!\n") - # puts code - # - # <i>Generates</i>: - # - # #coding:UTF-8 - # _erbout=''; _erbout.concat "Got "; _erbout.concat(( obj ).to_s); _erbout.concat "!\n"; _erbout - # - # By default the output is sent to the print method. For example: - # - # compiler = ERB::Compiler.new('<>') - # code, enc = compiler.compile("Got <%= obj %>!\n") - # puts code - # - # <i>Generates</i>: - # - # #coding:UTF-8 - # print "Got "; print(( obj ).to_s); print "!\n" - # - # == Evaluation - # - # The compiled code can be used in any context where the names in the code - # correctly resolve. Using the last example, each of these print 'Got It!' - # - # Evaluate using a variable: - # - # obj = 'It' - # eval code - # - # Evaluate using an input: - # - # mod = Module.new - # mod.module_eval %{ - # def get(obj) - # #{code} - # end - # } - # extend mod - # get('It') - # - # Evaluate using an accessor: - # - # klass = Class.new Object - # klass.class_eval %{ - # attr_accessor :obj - # def initialize(obj) - # @obj = obj - # end - # def get_it - # #{code} - # end - # } - # klass.new('It').get_it - # - # Good! See also ERB#def_method, ERB#def_module, and ERB#def_class. - class Compiler # :nodoc: - class PercentLine # :nodoc: - def initialize(str) - @value = str - end - attr_reader :value - alias :to_s :value - - def empty? - @value.empty? - end - end - - class Scanner # :nodoc: - @scanner_map = {} - def self.regist_scanner(klass, trim_mode, percent) - @scanner_map[[trim_mode, percent]] = klass - end - - def self.default_scanner=(klass) - @default_scanner = klass - end - - def self.make_scanner(src, trim_mode, percent) - klass = @scanner_map.fetch([trim_mode, percent], @default_scanner) - klass.new(src, trim_mode, percent) - end - - def initialize(src, trim_mode, percent) - @src = src - @stag = nil - end - attr_accessor :stag - - def scan; end - end - - class TrimScanner < Scanner # :nodoc: - def initialize(src, trim_mode, percent) - super - @trim_mode = trim_mode - @percent = percent - if @trim_mode == '>' - @scan_line = self.method(:trim_line1) - elsif @trim_mode == '<>' - @scan_line = self.method(:trim_line2) - elsif @trim_mode == '-' - @scan_line = self.method(:explicit_trim_line) - else - @scan_line = self.method(:scan_line) - end - end - attr_accessor :stag - - def scan(&block) - @stag = nil - if @percent - @src.each_line do |line| - percent_line(line, &block) - end - else - @scan_line.call(@src, &block) - end - nil - end - - def percent_line(line, &block) - if @stag || line[0] != ?% - return @scan_line.call(line, &block) - end - - line[0] = '' - if line[0] == ?% - @scan_line.call(line, &block) - else - yield(PercentLine.new(line.chomp)) - end - end - - def scan_line(line) - line.scan(/(.*?)(<%%|%%>|<%=|<%#|<%|%>|\n|\z)/m) do |tokens| - tokens.each do |token| - next if token.empty? - yield(token) - end - end - end - - def trim_line1(line) - line.scan(/(.*?)(<%%|%%>|<%=|<%#|<%|%>\n|%>|\n|\z)/m) do |tokens| - tokens.each do |token| - next if token.empty? - if token == "%>\n" - yield('%>') - yield(:cr) - else - yield(token) - end - end - end - end - - def trim_line2(line) - head = nil - line.scan(/(.*?)(<%%|%%>|<%=|<%#|<%|%>\n|%>|\n|\z)/m) do |tokens| - tokens.each do |token| - next if token.empty? - head = token unless head - if token == "%>\n" - yield('%>') - if is_erb_stag?(head) - yield(:cr) - else - yield("\n") - end - head = nil - else - yield(token) - head = nil if token == "\n" - end - end - end - end - - def explicit_trim_line(line) - line.scan(/(.*?)(^[ \t]*<%\-|<%\-|<%%|%%>|<%=|<%#|<%|-%>\n|-%>|%>|\z)/m) do |tokens| - tokens.each do |token| - next if token.empty? - if @stag.nil? && /[ \t]*<%-/ =~ token - yield('<%') - elsif @stag && token == "-%>\n" - yield('%>') - yield(:cr) - elsif @stag && token == '-%>' - yield('%>') - else - yield(token) - end - end - end - end - - ERB_STAG = %w(<%= <%# <%) - def is_erb_stag?(s) - ERB_STAG.member?(s) - end - end - - Scanner.default_scanner = TrimScanner - - class SimpleScanner < Scanner # :nodoc: - def scan - @src.scan(/(.*?)(<%%|%%>|<%=|<%#|<%|%>|\n|\z)/m) do |tokens| - tokens.each do |token| - next if token.empty? - yield(token) - end - end - end - end - - Scanner.regist_scanner(SimpleScanner, nil, false) - - begin - require 'strscan' - class SimpleScanner2 < Scanner # :nodoc: - def scan - stag_reg = /(.*?)(<%%|<%=|<%#|<%|\z)/m - etag_reg = /(.*?)(%%>|%>|\z)/m - scanner = StringScanner.new(@src) - while ! scanner.eos? - scanner.scan(@stag ? etag_reg : stag_reg) - yield(scanner[1]) - yield(scanner[2]) - end - end - end - Scanner.regist_scanner(SimpleScanner2, nil, false) - - class ExplicitScanner < Scanner # :nodoc: - def scan - stag_reg = /(.*?)(^[ \t]*<%-|<%%|<%=|<%#|<%-|<%|\z)/m - etag_reg = /(.*?)(%%>|-%>|%>|\z)/m - scanner = StringScanner.new(@src) - while ! scanner.eos? - scanner.scan(@stag ? etag_reg : stag_reg) - yield(scanner[1]) - - elem = scanner[2] - if /[ \t]*<%-/ =~ elem - yield('<%') - elsif elem == '-%>' - yield('%>') - yield(:cr) if scanner.scan(/(\n|\z)/) - else - yield(elem) - end - end - end - end - Scanner.regist_scanner(ExplicitScanner, '-', false) - - rescue LoadError - end - - class Buffer # :nodoc: - def initialize(compiler, enc=nil) - @compiler = compiler - @line = [] - @script = enc ? "#coding:#{enc.to_s}\n" : "" - @compiler.pre_cmd.each do |x| - push(x) - end - end - attr_reader :script - - def push(cmd) - @line << cmd - end - - def cr - @script << (@line.join('; ')) - @line = [] - @script << "\n" - end - - def close - return unless @line - @compiler.post_cmd.each do |x| - push(x) - end - @script << (@line.join('; ')) - @line = nil - end - end - - def content_dump(s) # :nodoc: - n = s.count("\n") - if n > 0 - s.dump + "\n" * n - else - s.dump - end - end - - # Compiles an ERB template into Ruby code. Returns an array of the code - # and encoding like ["code", Encoding]. - def compile(s) - enc = s.encoding - raise ArgumentError, "#{enc} is not ASCII compatible" if enc.dummy? - s = s.dup.force_encoding("ASCII-8BIT") # don't use constant Enoding::ASCII_8BIT for miniruby - enc = detect_magic_comment(s) || enc - out = Buffer.new(self, enc) - - content = '' - scanner = make_scanner(s) - scanner.scan do |token| - next if token.nil? - next if token == '' - if scanner.stag.nil? - case token - when PercentLine - out.push("#{@put_cmd} #{content_dump(content)}") if content.size > 0 - content = '' - out.push(token.to_s) - out.cr - when :cr - out.cr - when '<%', '<%=', '<%#' - scanner.stag = token - out.push("#{@put_cmd} #{content_dump(content)}") if content.size > 0 - content = '' - when "\n" - content << "\n" - out.push("#{@put_cmd} #{content_dump(content)}") - content = '' - when '<%%' - content << '<%' - else - content << token - end - else - case token - when '%>' - case scanner.stag - when '<%' - if content[-1] == ?\n - content.chop! - out.push(content) - out.cr - else - out.push(content) - end - when '<%=' - out.push("#{@insert_cmd}((#{content}).to_s)") - when '<%#' - # out.push("# #{content_dump(content)}") - end - scanner.stag = nil - content = '' - when '%%>' - content << '%>' - else - content << token - end - end - end - out.push("#{@put_cmd} #{content_dump(content)}") if content.size > 0 - out.close - return out.script, enc - end - - def prepare_trim_mode(mode) # :nodoc: - case mode - when 1 - return [false, '>'] - when 2 - return [false, '<>'] - when 0 - return [false, nil] - when String - perc = mode.include?('%') - if mode.include?('-') - return [perc, '-'] - elsif mode.include?('<>') - return [perc, '<>'] - elsif mode.include?('>') - return [perc, '>'] - else - [perc, nil] - end - else - return [false, nil] - end - end - - def make_scanner(src) # :nodoc: - Scanner.make_scanner(src, @trim_mode, @percent) - end - - # Construct a new compiler using the trim_mode. See ERB#new for available - # trim modes. - def initialize(trim_mode) - @percent, @trim_mode = prepare_trim_mode(trim_mode) - @put_cmd = 'print' - @insert_cmd = @put_cmd - @pre_cmd = [] - @post_cmd = [] - end - attr_reader :percent, :trim_mode - - # The command to handle text that ends with a newline - attr_accessor :put_cmd - - # The command to handle text that is inserted prior to a newline - attr_accessor :insert_cmd - - # An array of commands prepended to compiled code - attr_accessor :pre_cmd - - # An array of commands appended to compiled code - attr_accessor :post_cmd - - private - def detect_magic_comment(s) - if /\A<%#(.*)%>/ =~ s or (@percent and /\A%#(.*)/ =~ s) - comment = $1 - comment = $1 if comment[/-\*-\s*(.*?)\s*-*-$/] - if %r"coding\s*[=:]\s*([[:alnum:]\-_]+)" =~ comment - enc = $1.sub(/-(?:mac|dos|unix)/i, '') - enc = Encoding.find(enc) - end - end - end - end -end - -#-- -# ERB -class ERB - # - # Constructs a new ERB object with the template specified in _str_. - # - # An ERB object works by building a chunk of Ruby code that will output - # the completed template when run. If _safe_level_ is set to a non-nil value, - # ERB code will be run in a separate thread with <b>$SAFE</b> set to the - # provided level. - # - # 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 %> - # - # _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+/, ""), 0, "", "@product").result b - # <%= PRODUCT[:name] %> - # <%= PRODUCT[:desc] %> - # END_PRODUCT - # ERB.new(<<-'END_PRICE'.gsub(/^\s+/, ""), 0, "", "@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=nil, trim_mode=nil, eoutvar='_erbout') - @safe_level = safe_level - compiler = ERB::Compiler.new(trim_mode) - set_eoutvar(compiler, eoutvar) - @src, @enc = *compiler.compile(str) - @filename = nil - end - - # The Ruby code generated by ERB - attr_reader :src - - # The optional _filename_ argument passed to Kernel#eval when the ERB code - # is run - attr_accessor :filename - - # - # 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}.concat" - compiler.insert_cmd = "#{eoutvar}.concat" - - cmd = [] - cmd.push "#{eoutvar} = ''" - - compiler.pre_cmd = cmd - - cmd = [] - cmd.push("#{eoutvar}.force_encoding(__ENCODING__)") - - compiler.post_cmd = cmd - end - - # Generate results and print them. (see ERB#result) - def run(b=TOPLEVEL_BINDING) - 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 or Proc object which is used to set the context of - # code evaluation. - # - def result(b=TOPLEVEL_BINDING) - if @safe_level - proc { - $SAFE = @safe_level - eval(@src, b, (@filename || '(erb)'), 0) - }.call - else - eval(@src, b, (@filename || '(erb)'), 0) - end - end - - # 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 - magic_comment = "#coding:#{@enc}\n" - mod.module_eval do - eval(magic_comment + "def #{methodname}\n" + src + "\nend\n", binding, fname, -2) - 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 - -#-- -# ERB::Util -class ERB - # A utility module for conversion routines, often handy in HTML generation. - module Util - public - # - # A utility method for escaping HTML tag characters in _s_. - # - # require "erb" - # include ERB::Util - # - # puts html_escape("is a > 0 & a < 10?") - # - # _Generates_ - # - # is a > 0 & a < 10? - # - def html_escape(s) - s.to_s.gsub(/&/, "&").gsub(/\"/, """).gsub(/>/, ">").gsub(/</, "<") - end - alias h html_escape - module_function :h - module_function :html_escape - - # - # A utility method for encoding the String _s_ as a URL. - # - # require "erb" - # include ERB::Util - # - # puts url_encode("Programming Ruby: The Pragmatic Programmer's Guide") - # - # _Generates_ - # - # Programming%20Ruby%3A%20%20The%20Pragmatic%20Programmer%27s%20Guide - # - def url_encode(s) - s.to_s.dup.force_encoding("ASCII-8BIT").gsub(/[^a-zA-Z0-9_\-.]/n) { - sprintf("%%%02X", $&.unpack("C")[0]) - } - end - alias u url_encode - module_function :u - module_function :url_encode - end -end - -#-- -# ERB::DefMethod -class ERB - # Utility module to define eRuby script as instance method. - # - # === Example - # - # example.rhtml: - # <% for item in @items %> - # <b><%= item %></b> - # <% end %> - # - # example.rb: - # require 'erb' - # class MyClass - # extend ERB::DefMethod - # def_erb_method('render()', 'example.rhtml') - # def initialize(items) - # @items = items - # end - # end - # print MyClass.new([10,20,30]).render() - # - # result: - # - # <b>10</b> - # - # <b>20</b> - # - # <b>30</b> - # - module DefMethod - public - # define _methodname_ as instance method of current module, using ERB - # object or eRuby file - def def_erb_method(methodname, erb_or_fname) - if erb_or_fname.kind_of? String - fname = erb_or_fname - erb = ERB.new(File.read(fname)) - erb.def_method(self, methodname, fname) - else - erb = erb_or_fname - erb.def_method(self, methodname, erb.filename || '(ERB)') - end - end - module_function :def_erb_method - end -end |