1 files changed, 106 insertions, 0 deletions
diff --git a/lib/erubis/engine/ec.rb b/lib/erubis/engine/ec.rb
new file mode 100644
index 0000000..8149dba
--- /dev/null
+++ b/lib/erubis/engine/ec.rb
@@ -0,0 +1,106 @@
+##
+## $Rev$
+## $Release$
+## $Copyright$
+##
+
+require 'erubis/engine'
+require 'erubis/enhancer'
+
+
+module Erubis
+
+
+  ##
+  ## engine for C
+  ##
+  class Ec < Engine
+
+    def self.supported_properties()  # :nodoc:
+      list = super
+      list << [:indent, '',       "indent spaces (ex. '  ')"]
+      list << [:out,    'stdout', "output stream name"]
+      return list
+    end
+
+    def initialize(input, properties={})
+      @indent = properties[:indent] || ''
+      @out = properties[:out] || 'stdout'
+      super
+    end
+
+    def add_preamble(src)
+      src << "#line 1 \"#{self.filename}\"\n" if self.filename
+    end
+
+    def escape_text(text)
+      @@table_ ||= { "\r"=>"\\r", "\n"=>"\\n", "\t"=>"\\t", '"'=>'\\"', "\\"=>"\\\\" }
+      text.gsub!(/[\r\n\t"\\]/) { |m| @@table_[m] }
+      return text
+    end
+
+    def escaped_expr(code)
+      @escape ||= "escape"
+      code.strip!
+      if code =~ /\A(\".*?\")\s*,\s*(.*)/
+        return "#{$1}, #{@escape}(#{$2})"
+      else
+        return "#{@escape}(#{code})"
+      end
+    end
+
+    def add_text(src, text)
+      return if text.empty?
+      src << (src.empty? || src[-1] == ?\n ? @indent : ' ')
+      src << "fputs("
+      i = 0
+      text.each_line do |line|
+        src << "\n" << @indent << '      ' if i > 0
+        i += 1
+        src << '"' << escape_text(line) << '"'
+      end
+      src << ", #{@out});"   #<< (text[-1] == ?\n ? "\n" : "")
+      src << "\n" if text[-1] == ?\n
+    end
+
+    def add_stmt(src, code)
+      src << code
+    end
+
+    def add_expr_literal(src, code)
+      src << @indent if src.empty? || src[-1] == ?\n
+      src << " fprintf(#{@out}, " << code.strip << ');'
+    end
+
+    def add_expr_escaped(src, code)
+      src << @indent if src.empty? || src[-1] == ?\n
+      src << " fprintf(#{@out}, " << escaped_expr(code) << ');'
+    end
+
+    def add_expr_debug(src, code)
+      code.strip!
+      s = nil
+      if code =~ /\A\".*?\"\s*,\s*(.*)/
+        s = $1.gsub(/[%"]/, '\\\1') + '='
+      end
+      src << @indent if src.empty? || src[-1] == ?\n
+      src << " fprintf(stderr, \"*** debug: #{s}\" #{code});"
+    end
+
+    def add_postamble(src)
+    end
+
+  end
+
+
+  class EscapedEc < Ec
+    include EscapeEnhancer
+  end
+
+
+  #class XmlEc < Ec
+  #  include EscapeEnhancer
+  #end
+
+
+end