If you really need space sometimes,you can use
On Mon, 18 Jun 2007 09:47:39 -0700 (PDT) LiuYan_刘研 <[EMAIL PROTECTED]> wrote: > > Thank you Leon, the 'trimSpaces' servlet parameter works fine except some > little issues: > 1. The span it trimmed is a little wider, it even trimmed the continuous > empty lines and the leading white spaces of the first line after directives.. > <[EMAIL PROTECTED]> > <[EMAIL PROTECTED]> > > > > <[EMAIL PROTECTED]> > will output nothing to client, but I want to keep the empty line 3,4,5 which > are not in the same lines to directives. > > > 2. the evaluated body in <c:forEach></forEach> is trimmed as the same indent > as the tag directive if there are differnce between them. see the following > example JSP code: > -------------------------------------------------------- > > > > > > > > > <%@ page > session="true" > contentType="text/html; charset=UTF-8" > import="java.util.*" > %> > > <%-- JSTL 1.1 tag library --%> > <%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core"; %> > <%-- JSTL 1.0 tag library --%> > <%--@ taglib prefix="c" uri="http://java.sun.com/jstl/core"; --%> > > <%-- 中文 used for save this file as UTF-8 encoding --%> > <html> > <head> > <style type="text/css"> > pre,code { border:1px solid} > </style> > </head> > <body> > > <% > ArrayList<String> arrayTest = new ArrayList<String>(); > pageContext.setAttribute ("test", arrayTest); > for(int i=1; i<=5; i++) > { > arrayTest.add (String.valueOf(i)); > } > %> > > > <pre> > Case 1: c:forEach has 0 indent, non-whitespace characters > occurs BEFORE > c:out > <c:forEach var="t" items="${test}"> > Line <c:out value="${t}"/> > </c:forEach> > </pre> > <pre> > Case 2: c:forEach has 2 tabs indent, non-whitespace characters > occurs > BEFORE c:out > <c:forEach var="t" items="${test}"> > Line <c:out value="${t}"/> > </c:forEach> > </pre> > <pre> > Case 3: c:forEach has 0 indent, non-whitespace characters > occurs AFTER > c:out > <c:forEach var="t" items="${test}"> > <c:out value="${t}"/> Line > </c:forEach> > </pre> > <pre> > Case 4: c:forEach has 2 tabs indent, non-whitespace characters > occurs > AFTER c:out > <c:forEach var="t" items="${test}"> > <c:out value="${t}"/> Line > </c:forEach> > </pre> > <pre> > Case 5: c:forEach has 2 tabs indent, there are no non-whitespace > characters around c:out > <c:forEach var="t" items="${test}"> > <c:out value="${t}"/> > </c:forEach> > </pre> > <table border="1"> > <tr> > <c:forEach var="t" items="${test}"> > <td> > <c:out value="${t}"/> > </td> > </c:forEach> > </tr> > </table> > > </body> > </html> > -------------------------------------------------------- > Unfortunately, non of these 5 cases meet my demand. > > The behaviour of 'trimSpaces' in my mind will be: > 1. Trim only whitespace characters if there are no non-whitespace characters > in the directive line > 2. An exception to 1: Do not trim whitespace characters which the directive > will generate outputs (such as c:out of JSTL or bean:write, bean:message of > struts ), maybe this is a trouble to JSP compiler, because it needs knows > behaviour of tags: which tags are logical tags and which tags are html tags, > but it is really good if 'trimSpaces' can achieve this. > 3. Do not trim any other lines which does not contain directives. > > Wish the JSP compiler can enhance 'trimSpaces' in details... > (I'm thinking: Am I a boring man... -_-!) > > But anyways, the 'trimSpaces' parameter is a good stuff for me now than > having not it. > > > > Leon Rosenberg-3 wrote: > > > > trimSpaces was once a setting in the declaration of the jsp servlet in > > the web.xml > > > > <servlet> > > <servlet-name>jsp</servlet-name> > > > > <servlet-class>org.apache.jasper.servlet.JspServlet</servlet-class> > > <init-param> > > <param-name>trimSpaces</param-name> > > <param-value>true</param-value> > > </init-param> > > ... > > > > > > regards > > Leon > > > > -- > View this message in context: > http://www.nabble.com/Is-there-a-config-for-JSP-compiler-to-ignore--%5Cs--chars-in-JSP-directive-line--tf3939116.html#a11179552 > Sent from the Tomcat - User mailing list archive at Nabble.com. > > > --------------------------------------------------------------------- > To start a new topic, e-mail: users@tomcat.apache.org > To unsubscribe, e-mail: [EMAIL PROTECTED] > For additional commands, e-mail: [EMAIL PROTECTED] ---------------------------- 吴熊敏 <[EMAIL PROTECTED]> --------------------------------------------------------------------- To start a new topic, e-mail: users@tomcat.apache.org To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
