/[cvs]/joko/Scripts/xupdate/xupdate.pl
ViewVC logotype

Diff of /joko/Scripts/xupdate/xupdate.pl

Parent Directory Parent Directory | Revision Log Revision Log | View Patch Patch

revision 1.1 by joko, Thu Apr 24 21:07:36 2003 UTC revision 1.3 by joko, Sat Apr 26 01:42:39 2003 UTC
# Line 4  Line 4 
4  ##  $Id$  ##  $Id$
5  ## -------------------------------------------------------------------------  ## -------------------------------------------------------------------------
6  ##  $Log$  ##  $Log$
7    ##  Revision 1.3  2003/04/26 01:42:39  joko
8    ##  first attempt to make up a crud template
9    ##
10    ##  Revision 1.2  2003/04/25 12:35:23  joko
11    ##  added some pod
12    ##  revamped xsl
13    ##
14  ##  Revision 1.1  2003/04/24 21:07:36  joko  ##  Revision 1.1  2003/04/24 21:07:36  joko
15  ##  initial commit  ##  initial commit
16  ##  ##
# Line 31  Line 38 
38      access to the XPath API in libxml2.      access to the XPath API in libxml2.
39    
40    
41  =head3 In short:  =head3 Yet another xupdate - facts in short:
42    
43    S: It would be nice to have a pure perl thingy which does the same stuff....    S: It would be nice to have a pure perl thingy which does (almost) the same stuff....
44        
45    Q: Can we achieve compliance with its API? (just a subset ....)    Q: Can we achieve compliance with its (XML::XUpdate::LibXML) API? (just a subset ....)
46        
47    Q: Can we achieve the processing declared as a XSL document processed using CPAN's XML::XSLT?    Q: Can we achieve the processing declared as a XSL document processed using CPAN's XML::XSLT?
48        
# Line 43  Line 50 
50        
51    Q: Can we mimic/use the interface of the - already established - 'xupdate' program???    Q: Can we mimic/use the interface of the - already established - 'xupdate' program???
52        
53      Q: Should we follow the CRUD path first?
54      
55    
56  =cut  =cut
57    
# Line 100  References: Line 109  References:
109            
110  <xsl:output method="raw"/>  <xsl:output method="raw"/>
111    
112  <!-- 0. The root node dispatcher. -->  <!-- 1. This is the passthru logic (copy all untouched nodes). -->
113  <xsl:template match="*"><xsl:call-template name="passthru"/></xsl:template>  <xsl:template name="passthru"><xsl:copy><xsl:apply-templates /></xsl:copy></xsl:template>
114  <!-- <xsl:template match="source"><xsl:call-template name="insertChildNode"/></xsl:template> -->  <!-- activate this -->
115    <xsl:template match="*"><xsl:call-template name="passthru" /></xsl:template>
116    <!-- override some builtin rules: see http://www.w3.org/TR/xslt#built-in-rule -->
117    <!-- <xsl:template match="comment()"><xsl:call-template name="passthru" /></xsl:template> -->
118    
119  <!-- 1. This is the passthru logic (copy all). -->  <!-- 2. This is the crud API. -->
 <xsl:template name="passthru"><xsl:copy><xsl:apply-templates/></xsl:copy></xsl:template>  
120    
121  <!-- 2. This is the manipulation logic: insertChildNode -->  <!-- 2.a. The context finder. -->
122    
123  <!-- 2.a. The "API" method. -->  <!-- query part one: the node name -->
124  <xsl:template name="insertChildNode">  <xsl:template match="source">
125      <xsl:choose>
126        <!-- query part two: the attrib key and value -->
127        <xsl:when test="@key=expekt">
128          <xsl:call-template name="crud" >
129            <xsl:with-param name="action">5</xsl:with-param>
130            <xsl:with-param name="payload">-------  payload -------</xsl:with-param>
131          </xsl:call-template>
132        </xsl:when>
133        <xsl:otherwise>
134          <xsl:call-template name="passthru_kay" />
135        </xsl:otherwise>
136      </xsl:choose>
137    </xsl:template>
138    
139    
140    <!-- 2.b. The node manipulators: They translate the current context. -->
141    
142    <!-- by Mike Kay, Software AG [http://p2p.wrox.com/archive/xslt/2001-06/98.asp] -->
143    <!-- enhancements & comments: Andreas Motl, rotamente.de -->
144    <!-- <xsl:template match="source"> -->
145    <xsl:template name="passthru_kay">
146          <xsl:copy>
147            <xsl:copy-of select="@*" />
148            <xsl:apply-templates />
149          </xsl:copy>  
150    </xsl:template>
151    
152    <xsl:template name="inject_kay_motl">
153          <xsl:param name="payload" />
154          <xsl:value-of select="$payload" />
155          <xsl:copy>
156            <xsl:copy-of select="@*" />
157            <xsl:apply-templates />
158            <!-- <xsl:apply-templates select="*[3]" /> -->
159            <!-- <xsl:value-of select="text()" /> -->
160            <!-- Multiple handlers here now: a) create fressshhhh element, b) clone s.th. -->
161            <!-- TODO: Do switch/case or couple of if/then statements here to be able to handle that "at runtime". -->
162            <xsl:call-template name="create_fresh_element" />
163            <xsl:call-template name="clone_last_element" />
164            <xsl:call-template name="clone_element_nr" />
165          </xsl:copy>  
166    </xsl:template>
167    
168    <xsl:template name="crud">
169      <xsl:param name="action" />
170      <xsl:param name="payload" />
171      action: <xsl:value-of select="$action" />
172      payload: <xsl:value-of select="$payload" />
173    
174      <xsl:if test="$action=5">
175        CRUD: CREATE
176      </xsl:if>
177    
   <!-- manipulate node -->  
   <xsl:comment> node - begin </xsl:comment>  
     
   <!-- <xsl:copy-of select="source" /> -->  
178    <xsl:copy>    <xsl:copy>
179            <xsl:copy-of select="@*" />
     <!-- Pass through children 1:1. -->  
180      <xsl:apply-templates />      <xsl:apply-templates />
181        
182      <!-- Call one of the manipulators - this implements injection behavior. -->      <!-- crud action dispatcher -->
183      <xsl:call-template name="clone_last_element" />      <xsl:choose>
184      <xsl:call-template name="inject_template" />        <xsl:when test="{$action}=5">
185            <!-- <xsl:when test="blah=\'blub\'"> -->
186            CRUD: CREATE
187            <xsl:call-template name="clone_last_element" />
188          </xsl:when>
189          <xsl:otherwise>
190            <xsl:comment> UNKOWN CRUD ACTION! </xsl:comment>
191          </xsl:otherwise>
192        </xsl:choose>
193    
194    </xsl:copy>    </xsl:copy>
195    <xsl:comment> node - end </xsl:comment>  
     
196  </xsl:template>  </xsl:template>
197    
198    
 <!-- 2.b. The context finder. -->  
199    
200  <!-- 2.c. The node manipulators: They mungle the current context. -->  <!-- 2.c. The element manipulators: They mungle a specific element inside the current context. -->
201    
202  <!-- copy over node 1:1 (use last element as a template) -->  <!-- copy over node 1:1 (use last element as a template) -->
203  <xsl:template name="clone_last_element">  <xsl:template name="clone_last_element">
204    <xsl:copy-of select="*[last()]" />          <xsl:copy-of select="*[last()]" />
205  </xsl:template>  </xsl:template>
206    
207  <xsl:template name="clone_element_nr">  <xsl:template name="clone_element_nr">
208    <xsl:copy-of select="*[last()]" />          <!-- TODO: let idx be passed in via "with-param" or s.th.l.th. -->
209            <xsl:copy-of select="*[2]" />
210  </xsl:template>  </xsl:template>
211    
212  <!-- creates instance of new element -->  <!-- creates instance of new element -->
213  <xsl:template name="create_fresh_element">  <xsl:template name="create_fresh_element">
214    <xsl:element name="new">content</xsl:element>          <xsl:element name="new">content</xsl:element>
215  </xsl:template>  </xsl:template>
216    
217    
# Line 157  References: Line 222  References:
222  </xsl:template>  </xsl:template>
223    
224    
 <!-- Fine stuff from others. -->  
225    
226  <!-- by Mike Kay, Software AG [http://p2p.wrox.com/archive/xslt/2001-06/98.asp] -->  
227  <!-- enhancements & comments: Andreas Motl, rotamente.de -->  <!-- 0. The root node dispatcher. -->
228  <xsl:template match="source">  <!-- <xsl:template match="source"><xsl:call-template name="insertChildNode"/></xsl:template> -->
229    
230    <!-- 2. This is the manipulation logic: insertChildNode -->
231    
232    <!-- 2.a. The "API" method. - now deprecated -->
233    <xsl:template name="insertChildNode">
234    
235      <!-- manipulate node -->
236      <xsl:comment> node - begin </xsl:comment>
237      
238      <!-- <xsl:copy-of select="source" /> -->
239    <xsl:copy>    <xsl:copy>
240      <xsl:copy-of select="@*" />      
241        <!-- Pass through children 1:1. -->
242      <xsl:apply-templates />      <xsl:apply-templates />
243      <!-- multiple handlers here now: a) create fressshhhh element, b) clone s.th. -->      
244      <!-- TODO: Do switch/case or couple of if/then statements here to be able to handle that "at runtime". -->      <!-- Call one of the manipulators - this implements injection behavior. -->
     <xsl:call-template name="create_fresh_element" />  
245      <xsl:call-template name="clone_last_element" />      <xsl:call-template name="clone_last_element" />
246    </xsl:copy>        <xsl:call-template name="inject_template" />
247      
248      </xsl:copy>
249      <xsl:comment> node - end </xsl:comment>
250      
251  </xsl:template>  </xsl:template>
252    
253    
Legend:
Removed from v.1.1  
changed lines
  Added in v.1.3
MailToCvsAdmin">MailToCvsAdmin
 ViewVC Help
Powered by ViewVC 1.1.26 RSS 2.0 feed