Sophie: php-manual-ro-0:20051028-1 noarch

php-manual-ro-20051028-1.noarch.rpm

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>yaz_ccl_parse</H1
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>    (PHP 4 &#62;= 4.0.5, PHP 5)</P
>yaz_ccl_parse&nbsp;--&nbsp;Invoke CCL Parser</DIV
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><H2
>Description</H2
>bool <B
CLASS="methodname"
>yaz_ccl_parse</B
> ( resource id, string query, array &#38; result)<BR
></BR
><P
>&#13;     This function invokes a CCL parser. It converts a given
     CCL FIND query to an RPN query which may be passed to the
     <A
HREF="function.yaz-search.html"
><B
CLASS="function"
>yaz_search()</B
></A
> function to perform a search.
     To define a set of valid CCL fields call
     <A
HREF="function.yaz-ccl-conf.html"
><B
CLASS="function"
>yaz_ccl_conf()</B
></A
> prior to this function.
     If the supplied <VAR
CLASS="parameter"
>query</VAR
> was successfully
     converted to RPN, this function returns <TT
CLASS="constant"
><B
>TRUE</B
></TT
>, and the index
     <VAR
CLASS="literal"
>rpn</VAR
> of the supplied array
     <VAR
CLASS="parameter"
>result</VAR
> holds a valid RPN query.
     If the query could not be converted (because of invalid syntax,
     unknown field, etc.) this function returns <TT
CLASS="constant"
><B
>FALSE</B
></TT
> and three
     indexes are set in the resulting array to indicate the cause
     of failure: <VAR
CLASS="literal"
>errorcode</VAR
> CCL error code (integer),
     <VAR
CLASS="literal"
>errorstring</VAR
> CCL error string, and 
     <VAR
CLASS="literal"
>errorpos</VAR
> approximate position in query of failure
     (integer is character position).
    </P
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>Exemplu 1. CCL Parsing</B
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>We will try to search using CCL. In the example below,
      <VAR
CLASS="literal"
>$ccl</VAR
> is a CCL query. 
     </P
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><code><font color="#000000">
<font color="#0000BB">&lt;?php<br />yaz_ccl_conf</font><font color="#007700">(</font><font color="#0000BB">$id</font><font color="#007700">, </font><font color="#0000BB">$fields</font><font color="#007700">);&nbsp;&nbsp;</font><font color="#FF8000">// see example for yaz_ccl_conf<br /></font><font color="#007700">if (!</font><font color="#0000BB">yaz_ccl_parse</font><font color="#007700">(</font><font color="#0000BB">$id</font><font color="#007700">, </font><font color="#0000BB">$ccl</font><font color="#007700">, &amp;</font><font color="#0000BB">$cclresult</font><font color="#007700">)) {<br />&nbsp;&nbsp;&nbsp;&nbsp;echo </font><font color="#DD0000">'Error: ' </font><font color="#007700">. </font><font color="#0000BB">$cclresult</font><font color="#007700">[</font><font color="#DD0000">"errorstring"</font><font color="#007700">];<br />} else {<br />&nbsp;&nbsp;&nbsp;&nbsp;</font><font color="#0000BB">$rpn </font><font color="#007700">= </font><font color="#0000BB">$cclresult</font><font color="#007700">[</font><font color="#DD0000">"rpn"</font><font color="#007700">];<br />&nbsp;&nbsp;&nbsp;&nbsp;</font><font color="#0000BB">yaz_search</font><font color="#007700">(</font><font color="#0000BB">$id</font><font color="#007700">, </font><font color="#DD0000">"rpn"</font><font color="#007700">, </font><font color="#0000BB">$rpn</font><font color="#007700">);<br />}<br /></font><font color="#0000BB">?&gt;</font>
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