| 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 |
| 467 |
|
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 |
| 469 |
|
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. |
| 471 |
|
.sp |
| 472 |
|
re> /(a)|(b)/ |
| 473 |
|
data> a |
| 474 |
|
0: a |
| 475 |
|
1: a |
| 476 |
|
data> b |
| 477 |
|
0: b |
| 478 |
|
1: <unset> |
| 479 |
|
2: b |
| 480 |
|
.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 |
| 483 |
pattern. See below for the definition of non-printing characters. If the |
pattern. See below for the definition of non-printing characters. If the |
| 711 |
.rs |
.rs |
| 712 |
.sp |
.sp |
| 713 |
.nf |
.nf |
| 714 |
Last updated: 11 September 2007 |
Last updated: 19 November 2007 |
| 715 |
Copyright (c) 1997-2007 University of Cambridge. |
Copyright (c) 1997-2007 University of Cambridge. |
| 716 |
.fi |
.fi |