Now there are only parser and compiler in engine

lib/hamlit/concerns/multiline.rb

@@ -0,0 +1,55 @@
+require 'temple'
+require 'hamlit/concerns/line_reader'
+
+module Hamlit
+  module Concerns
+    module Multiline
+      include Concerns::LineReader
+
+      def preprocess_multilines(template)
+        reset_lines(template.split("\n"))
+        result = []
+
+        while @lines[@current_lineno + 1]
+          @current_lineno += 1
+
+          unless end_with_pipe?(current_line)
+            result << current_line
+            next
+          end
+
+          prefix = current_line[/\A */]
+          lines  = scan_multilines
+
+          result << prefix + build_multiline(lines)
+          (lines.length - 1).times { result << '' }
+        end
+        result.map { |line| "#{line}\n" }.join
+      end
+
+      private
+
+      def end_with_pipe?(line)
+        return false unless line
+        line.strip =~ / \|\Z/
+      end
+
+      def scan_multilines
+        lines = []
+        while end_with_pipe?(current_line)
+          lines << current_line
+          @current_lineno += 1
+        end
+        @current_lineno -= 1
+        lines
+      end
+
+      def build_multiline(lines)
+        lines = lines.map do |line|
+          line.strip.gsub(/ *\|\Z/, '')
+        end
+        lines.join(' ')
+      end
+    end
+  end
+end

lib/hamlit/engine.rb

@@ -2,7 +2,6 @@ require 'temple'
 require 'hamlit/compiler'
 require 'hamlit/html/pretty'
 require 'hamlit/html/ugly'
-require 'hamlit/multiline'
 require 'hamlit/parser'
 
 module Hamlit
@@ -14,7 +13,6 @@ module Hamlit
       ugly:       false,
     )
 
-    use Multiline
     use Parser
     use Compiler
     use :Html, -> { create(html_compiler) }

lib/hamlit/multiline.rb

@@ -1,57 +0,0 @@
-require 'temple'
-require 'hamlit/concerns/line_reader'
-
-module Hamlit
-  class Multiline < Temple::Parser
-    include Concerns::LineReader
-
-    def call(template)
-      reset_lines(template.split("\n"))
-      preprocess_multilines
-    end
-
-    private
-
-    def preprocess_multilines
-      result = []
-
-      while @lines[@current_lineno + 1]
-        @current_lineno += 1
-
-        unless end_with_pipe?(current_line)
-          result << current_line
-          next
-        end
-
-        prefix = current_line[/\A */]
-        lines  = scan_multilines
-
-        result << prefix + build_multiline(lines)
-        (lines.length - 1).times { result << '' }
-      end
-      result.map { |line| "#{line}\n" }.join
-    end
-
-    def end_with_pipe?(line)
-      return false unless line
-      line.strip =~ / \|\Z/
-    end
-
-    def scan_multilines
-      lines = []
-      while end_with_pipe?(current_line)
-        lines << current_line
-        @current_lineno += 1
-      end
-      @current_lineno -= 1
-      lines
-    end
-
-    def build_multiline(lines)
-      lines = lines.map do |line|
-        line.strip.gsub(/ *\|\Z/, '')
-      end
-      lines.join(' ')
-    end
-  end
-end

lib/hamlit/parser.rb

@@ -4,6 +4,7 @@ require 'hamlit/concerns/balanceable'
 require 'hamlit/concerns/escapable'
 require 'hamlit/concerns/indentable'
 require 'hamlit/concerns/line_reader'
+require 'hamlit/concerns/multiline'
 
 module Hamlit
   class Parser < Temple::Parser
@@ -11,6 +12,7 @@ module Hamlit
     include Concerns::Escapable
     include Concerns::Indentable
     include Concerns::LineReader
+    include Concerns::Multiline
 
     TAG_ID_CLASS_REGEXP = /[a-zA-Z0-9_-]+/
     INTERNAL_STATEMENTS = %w[else elsif when].freeze
@@ -32,6 +34,7 @@ module Hamlit
 
     # Reset the parser state.
     def reset(template)
+      template = preprocess_multilines(template)
       reset_lines(template.split("\n"))
       reset_indent
     end

spec/hamlit/multiline_spec.rb

@@ -1,37 +0,0 @@
-describe Hamlit::Multiline do
-  describe '#call' do
-    it 'does not alter normal lines' do
-      assert_compile(<<-HAML, <<-HAML)
-        abc
-        d|
-        ef
-      HAML
-        abc
-        d|
-        ef
-      HAML
-    end
-
-    it 'joins multi-lines' do
-      assert_compile(<<-HAML, <<-HAML)
-        abc  |
-        d    |
-        ef
-      HAML
-        abc d
-
-        ef
-      HAML
-    end
-
-    it 'joins multi-lines' do
-      assert_compile(<<-HAML, <<-HAML)
-        = 'a' + |
-            'b' |
-      HAML
-        = 'a' + 'b'
-
-      HAML
-    end
-  end
-end