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      2 <head>
      3 <title>pcre2_substring_nametable_scan specification</title>
      4 </head>
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      6 <h1>pcre2_substring_nametable_scan man page</h1>
      7 <p>
      8 Return to the <a href="index.html">PCRE2 index page</a>.
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     10 <p>
     11 This page is part of the PCRE2 HTML documentation. It was generated
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     14 <br>
     15 <br><b>
     16 SYNOPSIS
     17 </b><br>
     18 <P>
     19 <b>#include &#60;pcre2.h&#62;</b>
     20 </P>
     21 <P>
     22 <b>int pcre2_substring_nametable_scan(const pcre2_code *<i>code</i>,</b>
     23 <b>  PCRE2_SPTR <i>name</i>, PCRE2_SPTR *<i>first</i>, PCRE2_SPTR *<i>last</i>);</b>
     24 </P>
     25 <br><b>
     26 DESCRIPTION
     27 </b><br>
     28 <P>
     29 This convenience function finds, for a compiled pattern, the first and last
     30 entries for a given name in the table that translates capturing parenthesis
     31 names into numbers.
     32 <pre>
     33   <i>code</i>    Compiled regular expression
     34   <i>name</i>    Name whose entries required
     35   <i>first</i>   Where to return a pointer to the first entry
     36   <i>last</i>    Where to return a pointer to the last entry
     37 </pre>
     38 When the name is found in the table, if <i>first</i> is NULL, the function
     39 returns a group number, but if there is more than one matching entry, it is not
     40 defined which one. Otherwise, when both pointers have been set, the yield of
     41 the function is the length of each entry in code units. If the name is not
     42 found, PCRE2_ERROR_NOSUBSTRING is returned.
     43 </P>
     44 <P>
     45 There is a complete description of the PCRE2 native API, including the format of
     46 the table entries, in the
     47 <a href="pcre2api.html"><b>pcre2api</b></a>
     48 page, and a description of the POSIX API in the
     49 <a href="pcre2posix.html"><b>pcre2posix</b></a>
     50 page.
     51 <p>
     52 Return to the <a href="index.html">PCRE2 index page</a>.
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     54