rouge-ruby · dblessing · Aug 10, 2018 · May 19, 2018 · dblessing · Jun 13, 2018
diff --git a/lib/rouge/demos/jsp b/lib/rouge/demos/jsp
@@ -0,0 +1,29 @@
+<%@ page contentType="text/html;charset=UTF-8" language="java" %>
+<%@ page import="java.time.LocalDateTime" %>
+
+<%! int day = 3; %> 
+
+<!DOCTYPE html>
+<html>
+	<head>
+		<title>Simple JSP Application</title>
+	</head>
+	<body>
+        <%-- This is a JSP comment --%>
+		<h1>Hello world!</h1>
+		<h2>Current time is <%= LocalDateTime.now() %></h2>
+
+        <% if (day == 1 || day == 7) { %>
+            <p> Today is weekend</p>
+        <% } else { %>
+            <p> Today is not weekend</p>
+        <% } %>
+
+        h2>Using JavaBeans in JSP</h2>
+        <jsp:useBean id="test" class="action.TestBean" />
+        <jsp:setProperty name="test"  property="message"  value="Hello JSP..." />
+
+        <p>Got message:</p>
+        <jsp:getProperty name="test" property="message" />
+	</body>
+</html>
diff --git a/lib/rouge/lexers/jsp.rb b/lib/rouge/lexers/jsp.rb
@@ -0,0 +1,119 @@
+# -*- coding: utf-8 -*- #
+
+module Rouge
+  module Lexers
+    class JSP < TemplateLexer
+      desc 'JSP'
+      tag 'jsp'
+      filenames '*.jsp'
+      mimetypes 'text/x-jsp', 'application/x-jsp'   
+
+      def initialize(*)
+        super
+        @java = Java.new
+      end
+
+      directives = %w(page include taglib)
+      actions = %w(scriptlet declaration expression)
+
+      state :root do
+
+        rule /<%--/, Comment, :jsp_comment
+
+        rule /<%@\s*(#{directives.join('|')})\s*/, Name::Tag, :jsp_directive
+
+        rule /<jsp:directive\.(#{directives.join('|')})/, Name::Tag, :jsp_directive2
+
+        rule /<jsp:(#{actions.join('|')})>/, Name::Tag, :jsp_expression
+
+        # start of tag, e.g. <c:if>
+        rule /<[a-zA-Z]*:[a-zA-Z]*\s*/, Name::Tag, :jsp_tag
+
+        # end of tag, e.g. </c:if>
+        rule /<\/[a-zA-Z]*:[a-zA-Z]*>/, Name::Tag
+
+        rule /<%[!=]?/, Name::Tag, :jsp_expression2
+
+        # fallback to HTML
+        rule(/(.+?)(?=(<%|<\/?[a-zA-Z]*:))/m) { delegate parent }
+        rule(/.+/m) { delegate parent }
+      end
+
+      state :jsp_comment do
+        rule /(--%>)/, Comment, :pop!
+        rule /./m, Comment
+      end
+
+      state :jsp_directive do
+        rule /(%>)/, Name::Tag, :pop!
+        mixin :attributes
+        rule(/(.+?)(?=%>)/m) { delegate parent }
+      end
+
+      state :jsp_directive2 do
+        rule /(\/>)/, Name::Tag, :pop!
+        mixin :attributes
+        rule(/(.+?)(?=\/>)/m) { delegate parent }
+      end
+
+      state :jsp_expression do
+        rule /<\/jsp:(#{actions.join('|')})>/, Name::Tag, :pop!
+        mixin :attributes
+        rule(/[^<\/]+/) { delegate @java }
+      end
+
+      state :jsp_expression2 do
+        rule /%>/, Name::Tag, :pop!
+        rule(/[^%>]+/) { delegate @java }
+      end
+
+      state :jsp_tag do
+        rule /\/?>/, Name::Tag, :pop!
+        mixin :attributes
+        rule(/(.+?)(?=\/?>)/m) { delegate parent }
+      end
+
+      state :attributes do
+        rule /\s*[a-zA-Z0-9_:-]+\s*=\s*/m, Name::Attribute, :attr
+      end
+
+      state :attr do
+        rule /"/ do
+          token Str
+          goto :double_quotes
+        end
+
+        rule /'/ do
+          token Str
+          goto :single_quotes
+        end
+
+        rule /[^\s>]+/, Str, :pop!
+      end
+
+      state :double_quotes do
+        rule /"/, Str, :pop!
+        rule /\$\{/, Str::Interpol, :jsp_interp
+        rule /[^"]+/, Str
+      end
+
+      state :single_quotes do
+        rule /'/, Str, :pop!
+        rule /\$\{/, Str::Interpol, :jsp_interp
+        rule /[^']+/, Str
+      end
+
+      state :jsp_interp do
+        rule /\}/, Str::Interpol, :pop!
+        rule /'/, Literal, :jsp_interp_literal_start 
+        rule(/[^'\}]+/) { delegate @java }
+      end
+
+      state :jsp_interp_literal_start do
+        rule /'/, Literal, :pop!
+        rule /[^']*/, Literal
+      end
+
+    end
+  end
+end
diff --git a/spec/lexers/jsp_spec.rb b/spec/lexers/jsp_spec.rb
@@ -0,0 +1,20 @@
+# -*- coding: utf-8 -*- #
+
+describe Rouge::Lexers::JSP do
+    let(:subject) { Rouge::Lexers::JSP.new }
+    let(:bom) { "\xEF\xBB\xBF" }
+
+    describe 'guessing' do
+      include Support::Guessing
+
+      it 'guesses by filename' do
+        assert_guess :filename => 'file.jsp'
+      end
+
+      it 'guesses by mimetype' do
+        assert_guess :mimetype => 'text/x-jsp'
+        assert_guess :mimetype => 'application/x-jsp'
+      end
+
+    end
+end
diff --git a/spec/visual/samples/jsp b/spec/visual/samples/jsp
@@ -0,0 +1,142 @@
+<%@ taglib uri="uri" prefix="prefixOfTag" %>
+<%@taglib prefix="c" uri="uri"%>
+<%@ page isELIgnored = "false" %>
+
+ <%-- This is 
+ a 
+ multiline
+ comment
+  --%> 
+
+<html>
+   <head><title>Hello World</title></head>
+   <c:set var="realm" value='<%=AppConfig.getRealm().name()%>' />
+
+   <body>
+      Hello World!<br/>
+
+    <script type="text/javascript">
+        <c:if test="${includeJS}">
+            alert("hello!");
+            var country = "argentina";
+        </c:if>
+        <jsp:scriptlet>
+             out.println("Your IP address is " + request.getRemoteAddr());
+        </jsp:scriptlet>
+    </script>
+
+    <style>
+        .timer {position:relative; height:8px; margin-bottom:2px; font-size:1px;}
+        <c:if test="${includeJS}">
+            .timer2 {position:absolute;}
+        </c:if>
+    </style>
+
+    <div class="nav-link" style="display:<%=isAdmin ? "inline" : "none" %>">
+    </div>
+
+    <a href="/search?q=<c:out value="${query}"/>&h_pageNumber=1&h_pageSize=10">
+        A link!
+    </a>
+
+    <select name="role" <c:if test="${isAdmin}">disabled="disabled"</c:if>>
+        <option value="User" <c:if test="${user.role eq 'ENTITY_USER'}">selected="selected"</c:if>></option>
+    </select>
+
+<%-- Interpolations --%> 
+
+    <input type="${'hidden'}" id="sampleCertificate" value="<c:out value ="${sampleCertificate}"/>" />
+
+    <c:text>
+        ${myViewModel.myProperty}
+    </c:text>
+
+<%-- Scriptlets --%> 
+
+      <%
+         out.println("Your IP address is " + request.getRemoteAddr());
+      %>
+        <jsp:scriptlet>
+             out.println("Your IP address is " + request.getRemoteAddr());
+        </jsp:scriptlet>
+
+<%-- Declarations --%> 
+
+    <%! int i=0; %> 
+    <%! int a, b, c; %> 
+    <%! Circle a=new Circle(2.0); %> 
+
+    <jsp:declaration>
+        Rectangle r=new Rectangle(2.0);
+    </jsp:declaration>
+
+<%-- Expressions --%>
+
+    <p>Today's date: <%= (new java.util.Date()).toLocaleString()%></p>
+
+        <jsp:expression>
+            (new java.util.Date()).toLocaleString();
+        </jsp:expression>
+
+<%-- Directives --%>
+
+            <%@ page attribute="value" %>
+            <jsp:directive.page attribute="value" />
+            <%@ include file="relative url" %>
+            <jsp:directive.include file="relative url" />
+            <%@ taglib uri="uri" prefix="prefixOfTag" %>
+            <jsp:directive.taglib uri="uri" prefix="prefixOfTag" />
+
+<%-- Actions --%>    
+
+            <jsp:include page="relative URL" flush="true" />
+            <jsp:useBean id="name" class="package.class" />
+            <jsp:useBean id="myName" class="package.class"  >
+            <jsp:setProperty name="myName" property="someProperty" />
+            </jsp:useBean>
+            <jsp:getProperty name="myName" property="someProperty" />
+            <jsp:forward page="date.jsp" />
+            <jsp:plugin type="applet" codebase="dirname" code="MyApplet.class"
+            width="60" height="80">
+            <jsp:param name="fontcolor" value="red" />
+            <jsp:param name="background" value="black" />
+
+            <jsp:fallback>
+                Unable to initialize Java Plugin
+            </jsp:fallback>
+
+            </jsp:plugin>
+            <jsp:element name="xmlElement">
+                <jsp:attribute name="xmlElementAttr">
+                    Value for the attribute
+                </jsp:attribute>
+
+                <jsp:body>
+                    Body for XML element
+                </jsp:body>
+
+            </jsp:element>
+            <jsp:text>Template data</jsp:text>
+
+<%-- Using tag libraries --%>
+
+        <c:set var="nameofvariable" value="10"/>
+        <c:if test="nameofvariable == 10">
+            <p>Condition is true!</p>
+            <input name="pswd" type="password" />
+             <script type="text/javascript">
+                    function callMe() {
+                        return 42;
+                    }
+            </script>
+            <jsp:scriptlet>
+                out.println("Your IP address is " + request.getRemoteAddr());
+            </jsp:scriptlet>
+        </c:if>
+        <c:otherwise>
+            <p>Boo! Condition is false!</p>
+        </c:otherwise>
+
+
+   </body>
+</html>