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  1. <html>
  2. <head>
  3. <title>pcre2_substring_copy_bynumber specification</title>
  4. </head>
  5. <body bgcolor="#FFFFFF" text="#00005A" link="#0066FF" alink="#3399FF" vlink="#2222BB">
  6. <h1>pcre2_substring_copy_bynumber man page</h1>
  7. <p>
  8. Return to the <a href="index.html">PCRE2 index page</a>.
  9. </p>
  10. <p>
  11. This page is part of the PCRE2 HTML documentation. It was generated
  12. automatically from the original man page. If there is any nonsense in it,
  13. please consult the man page, in case the conversion went wrong.
  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_copy_bynumber(pcre2_match_data *<i>match_data</i>,</b>
  23. <b> uint32_t <i>number</i>, PCRE2_UCHAR *<i>buffer</i>,</b>
  24. <b> PCRE2_SIZE *<i>bufflen</i>);</b>
  25. </P>
  26. <br><b>
  27. DESCRIPTION
  28. </b><br>
  29. <P>
  30. This is a convenience function for extracting a captured substring into a given
  31. buffer. The arguments are:
  32. <pre>
  33. <i>match_data</i> The match data block for the match
  34. <i>number</i> Number of the required substring
  35. <i>buffer</i> Buffer to receive the string
  36. <i>bufflen</i> Length of buffer
  37. </pre>
  38. The <i>bufflen</i> variable is updated with the length of the extracted string,
  39. excluding the terminating zero. The yield of the function is zero for success
  40. or one of the following error numbers:
  41. <pre>
  42. PCRE2_ERROR_NOSUBSTRING there are no groups of that number
  43. PCRE2_ERROR_UNAVAILBLE the ovector was too small for that group
  44. PCRE2_ERROR_UNSET the group did not participate in the match
  45. PCRE2_ERROR_NOMEMORY the buffer is too small
  46. </PRE>
  47. </P>
  48. <P>
  49. There is a complete description of the PCRE2 native API in the
  50. <a href="pcre2api.html"><b>pcre2api</b></a>
  51. page and a description of the POSIX API in the
  52. <a href="pcre2posix.html"><b>pcre2posix</b></a>
  53. page.
  54. <p>
  55. Return to the <a href="index.html">PCRE2 index page</a>.
  56. </p>