/[pcre]/code/trunk/doc/pcretest.1
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revision 273 by ph10, Mon Nov 19 10:09:04 2007 UTC revision 286 by ph10, Mon Dec 17 14:46:11 2007 UTC
# Line 463  of an interactive \fBpcretest\fP run. Line 463  of an interactive \fBpcretest\fP run.
463    data> xyz    data> xyz
464    No match    No match
465  .sp  .sp
466  Note that unset capturing substrings that are not followed by one that is set  Note that unset capturing substrings that are not followed by one that is set
467  are not returned by \fBpcre_exec()\fP, and are not shown by \fBpcretest\fP. In  are not returned by \fBpcre_exec()\fP, and are not shown by \fBpcretest\fP. In
468  the following example, there are two capturing substrings, but when the first  the following example, there are two capturing substrings, but when the first
469  data line is matched, the second, unset substring is not shown. An "internal"  data line is matched, the second, unset substring is not shown. An "internal"
470  unset substring is shown as "<unset>", as for the second data line.  unset substring is shown as "<unset>", as for the second data line.
471  .sp  .sp
472      re> /(a)|(b)/      re> /(a)|(b)/
# Line 476  unset substring is shown as "", a Line 476  unset substring is shown as "", a
476    data> b    data> b
477     0: b     0: b
478     1: <unset>     1: <unset>
479     2: b     2: b
480  .sp  .sp
481  If the strings contain any non-printing characters, they are output as \e0x  If the strings contain any non-printing characters, they are output as \e0x
482  escapes, or as \ex{...} escapes if the \fB/8\fP modifier was present on the  escapes, or as \ex{...} escapes if the \fB/8\fP modifier was present on the

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