I need an XPath query that originates at node 'a' to return some number of contiguously-following 'b' nodes and some number of contiguously-following 'c' nodes. So in this snippet-
<a />
<b />
<b />
<c />
<d />
<e />
<a />
<b />
<b />
<b />
<b />
<c />
it would be-
<b />
<b />
<c />
If I ran it against the first 'a' node and
<b />
<b />
<b />
<b />
<c />
If I ran it against the 2nd.
Ordering matters and I can't find a solution that does not involve unioning separate expressions.
The best bet for this is probably a recursive function something like
declare function local:successors($n as node()) as node()* {
if ($n/following-sibling::*[1][self::b|self::c])
then ($n, local-successors($n/following-sibling::*[1])
else $n
};
local:successors($a)
That's assuming you want XQuery as in your title, not XPath as in the body of your question.
Related
In odoo I try to change the recruitement form, but some of the stuctural elements dont have a name or id. When I change those elements it works fine initially, but when I upgrade the database then the rendering of the xml is stricter for some reason and gives an ParseError.
The recruitement form:
<sheet>
<div class="oe_button_box" name="button_box"/>
<div class="oe_title">
<label for="name" class="oe_edit_only"/>
<h1><field name="name" placeholder="e.g. Sales Manager"/></h1>
</div>
<notebook>
<page string="Job Description">
<div attrs="{'invisible': [('state', '!=', 'recruit')]}">
<label for="description"/>
<field name="description" type="html"/>
</div>
</page>
<page name="description_page" string="Description">
<field name="description" type="html"/>
<div class="d-none oe_clear"/>
</page>
<page string="Recruitment">
<group>
<group name="recruitment">
<field name="company_id" options="{'no_create': True}" groups="base.group_multi_company"/>
<field name="department_id"/>
</group>
<group>
<field name="no_of_recruitment"/>
</group>
</group>
</page>
</notebook>
</sheet>
As you can see; the sheet, notebook, pages and groups mostly dont have a name. The string attribute is also not sufficient to modify with a expression in xpath. So it feels like I'm just stuck with this framework.
What I try:
<xpath expr="//sheet/notebook" position="replace">
<notebook>
<page name="description_page" string="Description">
<field name="description" type="html"/>
<div class="d-none oe_clear"/>
</page>
<page string="Recruitment">
<group>
<group name="recruitment">
<field name="branch_concept" />
<field name="branch" />
<field name="department_id" />
</group>
<group>
<field name="no_of_recruitment"/>
</group>
</group>
</page>
</notebook>
</xpath>
And this works until I do a db upgrade, then I get a parseError.
Does anybody know I can use my own structure?
In the xpath expression you use //<some_node> to 'Selects nodes in the document from the current node that match the selection no matter where they are'. You can also use /<some_node>/<some_other_node> to locate a specific element.
for example /form/sheet/notebook/page[1]
<document>
<para>
<heading id="1" type="new" level="1" />
<span />
<heading id="2" type="new" level="2" />
<span />
</para>
<para>
<heading id="3" type="new" level="1" />
<span />
<heading id="4" type="new" level="2" />
<span />
</para>
<para>
<heading id="5" type="old" level="2" />
<span />
</para>
<para>
<heading id="6" type="old" level="2" />
<span />
</para>
<para>
<heading id="7" type="old" level="2" />
<span />
</para>
<para>
<heading id="8" type="old" level="2" />
<span />
</para>
<para>
<span />
</para>
</document>
Hello,
I'm parsing the above XML node-by-node in Javascript. Assuming that I'm currently at "heading id='8'" node, how would I look backwards and find the first node that has it's level set to "2" (same as the level on the node that I'm currently parsing) and type set to "new" using XPath expressions?
So, in the above exapmple, the element with id="4" must be selected.
Thanks!
You can use preceding axis and use index to return only the nearest preceding element :
preceding::*[#level='2' and #type='new'][1]
xpathtester demo
output :
<heading id="4" level="2" type="new"/>
In the demo, I use //*[#id='8'] to select element with id=8 first, to simulate context element, and then continue selecting the target element using the above mentioned XPath.
Actually I thought you wanted this.
How would I look backwards and find the first node that has it's level set to the same as the level on the node that I'm currently parsing and type set to new using XPath expressions?
Oh well, leaving this here for future reference ...
[#type='new' and #level=current()/#level]
In XPath, how to select the id of all <a> nodes that contain x=10 and y=100 in their children (which are at different levels)?
<root>
<a id="1">
<c>
<x>10</x>
<y>100</y>
</c>
</a>
<a id="4">
<c>
<c>
<x>10</x>
<y>100</y>
</c>
</c>
</a>
<a id="6">
<x>20</x>
<y>200</y>
</a>
<a id="7">
<x>10</x>
<y>300</y>
</a>
</root>
Something like this, I would imagine:
//a[.//x=10][.//y=100]/#id
Hy everyone!
Im trying to implement file upload with Spring roo. The files path will be persisted in the database, and the file will be saved on the file system.
According to informations found on the spring dveloper board, i modified the input.tagx and create.tagx files.(info: https://jira.springsource.org/browse/ROO-442)
input.tagx:
<jsp:root xmlns:c="http://java.sun.com/jsp/jstl/core" xmlns:fn="http://java.sun.com/jsp/jstl/functions" xmlns:spring="http://www.springframework.org/tags" xmlns:form="http://www.springframework.org/tags/form" xmlns:jsp="http://java.sun.com/JSP/Page" version="2.0">
<jsp:output omit-xml-declaration="yes" />
<jsp:directive.attribute name="id" type="java.lang.String" required="true" rtexprvalue="true" description="The identifier for this tag (do not change!)" />
<jsp:directive.attribute name="field" type="java.lang.String" required="true" rtexprvalue="true" description="The field exposed from the form backing object" />
<jsp:directive.attribute name="label" type="java.lang.String" required="false" rtexprvalue="true" description="The label used for this field, will default to a message bundle if not supplied" />
<jsp:directive.attribute name="labelCode" type="java.lang.String" required="false" rtexprvalue="true" description="Key for label message bundle if label is not supplied" />
<jsp:directive.attribute name="required" type="java.lang.Boolean" required="false" rtexprvalue="true" description="Indicates if this field is required (default false)" />
<jsp:directive.attribute name="disabled" type="java.lang.Boolean" required="false" rtexprvalue="true" description="Specify if this field should be enabled" />
<jsp:directive.attribute name="validationRegex" type="java.lang.String" required="false" rtexprvalue="true" description="Specify regular expression to be used for the validation of the input contents" />
<jsp:directive.attribute name="validationMessageCode" type="java.lang.String" required="false" rtexprvalue="true" description="Specify the message (message property code) to be displayed if the regular expression validation fails" />
<jsp:directive.attribute name="validationMessage" type="java.lang.String" required="false" rtexprvalue="true" description="Specify the message to be displayed if the regular expression validation fails" />
<c:if test="${empty render or render}"
<c:when test="${disableFormBinding}">
<input id="_${field}_id" name="${field}" type="${type}"/>
</c:when>
<c:otherwise>
<!-- currently (spring 3.0.3), form:input doesn't support type attribute -->
<!-- <form:input id="_${field}_id" path="${field}" disabled="${disabled}"/> -->
<input id="_${field}_id" name="${field}" type="${type}"/>
<br/>
<form:errors cssClass="errors" id="_${field}_error_id" path="${field}"/>
</c:otherwise>
<c:if test="${empty disabled}">
<c:set value="false" var="disabled" />
</c:if>
<c:if test="${empty label}">
<c:if test="${empty labelCode}">
<c:set var="labelCode" value="${fn:substringAfter(id,'_')}" />
</c:if>
<spring:message code="label_${fn:toLowerCase(labelCode)}" var="label" htmlEscape="false" />
</c:if>
<c:if test="${empty validationMessage}">
<c:choose>
<c:when test="${empty validationMessageCode}">
<spring:message arguments="${fn:escapeXml(label)}" code="field_invalid" var="field_invalid" htmlEscape="false" />
</c:when>
<c:otherwise>
<spring:message arguments="${fn:escapeXml(label)}" code="${validationMessageCode}" var="field_invalid" htmlEscape="false" />
</c:otherwise>
</c:choose>
</c:if>
<c:if test="${empty required}">
<c:set value="false" var="required" />
</c:if>
<c:set var="sec_field">
<spring:escapeBody javaScriptEscape="true" >${field}</spring:escapeBody>
</c:set>
<div id="_${fn:escapeXml(id)}_id">
<label for="_${sec_field}_id">
<c:out value="${fn:escapeXml(label)}" />
:
</label>
<c:choose>
<c:when test="${disableFormBinding}">
<input id="_${sec_field}_id" name="${sec_field}" type="${fn:escapeXml(type)}" />
</c:when>
<c:otherwise>
<c:choose>
<c:when test="${type eq 'password'}">
<form:password id="_${sec_field}_id" path="${sec_field}" disabled="${disabled}" />
</c:when>
<c:otherwise>
<form:input id="_${sec_field}_id" path="${sec_field}" disabled="${disabled}" />
</c:otherwise>
</c:choose>
<br />
<form:errors cssClass="errors" id="_${sec_field}_error_id" path="${sec_field}" />
</c:otherwise>
</c:choose>
<c:choose>
<c:when test="${required}">
<spring:message code="field_required" var="field_required" htmlEscape="false" />
<spring:message argumentSeparator="," arguments="${label},(${field_required})" code="field_simple_validation" var="field_validation" htmlEscape="false" />
</c:when>
<c:otherwise>
<spring:message argumentSeparator="," arguments="${label}, " code="field_simple_validation" var="field_validation" htmlEscape="false" />
</c:otherwise>
</c:choose>
<c:set var="sec_field_validation">
<spring:escapeBody javaScriptEscape="true">${field_validation}</spring:escapeBody>
</c:set>
<c:set var="sec_field_invalid">
<spring:escapeBody javaScriptEscape="true" htmlEscape="true">${field_invalid}</spring:escapeBody>
</c:set>
<c:set var="sec_field_required">
<spring:escapeBody javaScriptEscape="true">${field_required}</spring:escapeBody>
</c:set>
<c:set var="sec_validation_regex" value="" />
<c:if test="${!empty validationRegex}">
<c:set var="sec_validation_regex" value="regExp : '${validationRegex}', " />
</c:if>
<script type="text/javascript">
Spring.addDecoration(new Spring.ElementDecoration({elementId : '_${sec_field}_id', widgetType : 'dijit.form.ValidationTextBox', widgetAttrs : {promptMessage: '${sec_field_validation}', invalidMessage: '${sec_field_invalid}', required : ${required}, ${sec_validation_regex} missingMessage : '${sec_field_required}' }}));
</script>
</div>
<br />
</c:if>
</jsp:root>
create.tagx:
<jsp:root xmlns:c="http://java.sun.com/jsp/jstl/core" xmlns:fn="http://java.sun.com/jsp/jstl/functions" xmlns:util="urn:jsptagdir:/WEB-INF/tags/util" xmlns:form="http://www.springframework.org/tags/form" xmlns:jsp="http://java.sun.com/JSP/Page" xmlns:spring="http://www.springframework.org/tags" version="2.0">
<jsp:output omit-xml-declaration="yes"/>
<jsp:directive.attribute name="id" type="java.lang.String" required="true" rtexprvalue="true" description="The identifier for this tag (do not change!)"/>
<jsp:directive.attribute name="modelAttribute" type="java.lang.String" required="true" rtexprvalue="true" description="The name of the model attribute for form binding"/>
<jsp:directive.attribute name="path" type="java.lang.String" required="true" rtexprvalue="true" description="Specify the relative URL path (wit leading /)" />
<jsp:directive.attribute name="compositePkField" type="java.lang.String" required="false" rtexprvalue="true" description="The field name of the composite primary key (only used if a composite PK is present in the form backing object)" />
<jsp:directive.attribute name="multipart" type="java.lang.Boolean" required="false" rtexprvalue="true" description="Indicate if this is a multipart form (default: false)" />
<jsp:directive.attribute name="label" type="java.lang.String" required="false" rtexprvalue="true" description="The label used for this object, will default to a message bundle if not supplied"/>
<jsp:directive.attribute name="render" type="java.lang.Boolean" required="false" rtexprvalue="true" description="Indicate if the contents of this tag and all enclosed tags should be rendered (default 'true')" />
<jsp:directive.attribute name="openPane" type="java.lang.Boolean" required="false" rtexprvalue="true" description="Control if the title pane is opened or closed by default (default: true)"/>
<jsp:directive.attribute name="z" type="java.lang.String" required="false" description="Used for checking if element has been modified (to recalculate simply provide empty string value)"/>
<jsp:directive.attribute name="enctype" type="java.lang.String" required="false" description="Used to set the enctype, e.g. multipart/form-data for file upload support. "/>
<c:if test="${empty render or render}">
<c:if test="${empty label}">
<spring:message code="label_${fn:toLowerCase(fn:substringAfter(id,'_'))}" var="label" htmlEscape="false" />
</c:if>
<!--<c:set var="enctype" value="application/x-www-form-urlencoded"/> -->
<form:form action="${form_url}" method="POST" modelAttribute="${modelAttribute}" enctype="${enctype}">
</form:form>
<c:if test="${multipart}">
<c:set var="enctype" value="multipart/form-data"/>
</c:if>
<spring:message arguments="${label}" code="entity_create" var="title_msg" htmlEscape="false" />
<util:panel id="${id}" title="${title_msg}" openPane="${openPane}">
<spring:url value="${path}" var="form_url"/>
<c:set var="jsCall" value=""/>
<c:if test="${not empty compositePkField}">
<c:set var="jsCall" value="encodePk()" />
</c:if>
<form:form action="${form_url}" method="POST" modelAttribute="${modelAttribute}" enctype="${enctype}" onsubmit="${jsCall}">
<form:errors cssClass="errors" delimiter="<p/>"/>
<c:if test="${not empty compositePkField}">
<form:hidden id="_${fn:escapeXml(compositePkField)}_id" path="${fn:escapeXml(compositePkField)}" />
<script type="text/javascript">
<![CDATA[
dojo.require("dojox.encoding.base64");
function encodePk() {
var obj = new Object();
dojo.query("input[name^=\"${compositePkField}.\"]").forEach(function(node, index, nodelist){
obj[node.name.substring('${compositePkField}'.length + 1)] = node.value;
});
var json = dojo.toJson(obj);
var tokArr = [];
for (var i = 0; i < json.length; i++) {
tokArr.push(json.charCodeAt(i));
}
var encoded = dojox.encoding.base64.encode(tokArr);
dojo.byId('_${fn:escapeXml(compositePkField)}_id').value = encoded;
}
]]>
</script>
</c:if>
<jsp:doBody />
<div class="submit" id="${fn:escapeXml(id)}_submit">
<spring:message code="button_save" var="save_button" htmlEscape="false" />
<script type="text/javascript">Spring.addDecoration(new Spring.ValidateAllDecoration({elementId:'proceed', event:'onclick'}));</script>
<input id="proceed" type="submit" value="${fn:escapeXml(save_button)}"/>
</div>
</form:form>
</util:panel>
</c:if>
</jsp:root>
My problem is i get the fallowing error:
javax.servlet.jsp.JspTagException: Illegal use of <when>-style tag without <choose> as its direct parent
at org.apache.taglibs.standard.tag.common.core.WhenTagSupport.doStartTag(WhenTagSupport.java:95)
at org.apache.jsp.tag.web.form.fields.input_tagx._jspx_meth_c_005fwhen_005f0(input_tagx.java:519)
at org.apache.jsp.tag.web.form.fields.input_tagx.doTag(input_tagx.java:325)
at org.apache.jsp.WEB_002dINF.views.pphotoes.create_jspx._jspx_meth_field_005finput_005f0(create_jspx.java:172)
at org.apache.jsp.WEB_002dINF.views.pphotoes.create_jspx.access$2(create_jspx.java:157)
What am i doing wrong? (My controller and entity files are good i think, if needed i can post them)
Thx for any help.
cheers.
As the error message clearly states, you need to have a <c:choose> as a direct parent tag before the <c:when> tag - possibly in the following first few lines of your input.tagx file. Additionally, the <c:if> tag is not closed properly.
<c:if test="${empty render or render}"
<c:when test="${disableFormBinding}">
Cheers.
I'm trying to extract data from the following structure:
<span>Heading</span>
<br />
<br />
<span>Heading1</span>
<br />
data#1
<br />
<br />
<span>Heading4</span><br />
• data#4.1
<br />
• data#4.2
<br />
• data#4.3
<br />
• data#4.4
<br />
<br />
<span>Heading5</span>
<br />
• data#5.1
<br />
• data#5.2
<br />
• data#5.3
<br />
<br />
I can extract data#1 using something like this:
span[text()='Heading1']/following-sibling::br[1]/following::text()[1]
But I cant figure out how to extract the data under Heading4. I need to extract data#4.1, data#4.2, data#4.3 & data#4.4.
The number of points is not fixed and can vary.
This XPath 1.0 expression selects exactly the wanted nodes:
/*/span[.='Heading4']
/following-sibling::text()
[count(.|/*/span[.='Heading5']/preceding-sibling::text())
=
count(/*/span[.='Heading5']/preceding-sibling::text())
]
[normalize-space()]
It is produced from the well-known Kayessian method for intersection of two nodesets $ns1 and $ns2:
$ns1[count(.|$ns2) = count($ns2)]
We obtain the first expression above if in the Kayessian formula we substitute $ns1 with:
/*/span[.='Heading4']/following-sibling::text()
and $ns2 with:
/*/span[.='Heading5']/preceding-sibling::text()
The final predicate [normalize-space()] filters out the whitespace-only text nodes from this intersection.
XSLT-based verification:
<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
<xsl:output omit-xml-declaration="yes" indent="yes"/>
<xsl:template match="/">
<xsl:copy-of select=
"/*/span[.='Heading4']
/following-sibling::text()
[count(.|/*/span[.='Heading5']/preceding-sibling::text())
=
count(/*/span[.='Heading5']/preceding-sibling::text())
]
[normalize-space()]
"/>
</xsl:template>
</xsl:stylesheet>
When this transformation is applied on the provided XML document (with the entities replaced -- as we don't have a DTD defining them available and this isn't essential here):
<html>
<span>Heading</span>
<br />
<br />
<span>Heading1</span>
<br /> data#1
<br />
<br />
<span>Heading4</span>
<br /> #acirc;#euro;#cent; data#4.1
<br /> #acirc;#euro;#cent; data#4.2
<br /> #acirc;#euro;#cent; data#4.3
<br /> #acirc;#euro;#cent; data#4.4
<br />
<br />
<span>Heading5</span>
<br /> #acirc;#euro;#cent; data#5.1
<br /> #acirc;#euro;#cent; data#5.2
<br /> #acirc;#euro;#cent; data#5.3
<br />
<br />
</html>
the Xpath expression is evaluated and the result of this evaluation is copied to the output:
#acirc;#euro;#cent; data#4.1
#acirc;#euro;#cent; data#4.2
#acirc;#euro;#cent; data#4.3
#acirc;#euro;#cent; data#4.4
You can use
span[text()='Heading4']/following-sibling::text()[. != ""]
to get all the text after Heading4 and then use.
span[text()='Heading5']/following-sibling::text()[. != ""]
to get the text after Heading5 that you don't want, and then subtract the second result set from the first in your main program.
And if you have XPath 2, you can exclude them directly with the except operator:
span[text()='Heading4']/following-sibling::text()[. != ""] except span[text()='Heading5']/following::text()[. != ""]
You can get only the data without the • before with the substring(.,5) function, so the final XPath 2 expression becomes:
(span[text()='Heading4']/following-sibling::text()[. != ""] except span[text()='Heading5']/following::text()[. != ""])/substring(., 5)
And since you haven't explicitly said your language requirement you might also want to look at my pascal based query language, because it is imho way much nicer:
<span>Heading4</span><br />
<t:loop>
{filter(text(), "data.*")}<br/>
</t:loop>
<br/>
<span>Heading5</span><br />
I finally ended up using this, with help from the answer here
//text()[preceding-sibling::span[1] = 'Heading4']
I'd use
span[text()='Heading4']/following-sibling::text()
and then parse resulting text separately.