0001560: Problem with back references to subpatterns in preg_match_all

Mantis - Quercus

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Date Submitted:

Last Update:

1560

major

always

01-17-07 03:38

01-17-07 12:42

Reporter:

obaltz

Platform:

Assigned To:

nam

OS:

Priority:

normal

OS Version:

Status:

closed

Product Version:

3.1.0

Product Build:

Resolution:

duplicate

Projection:

none

ETA:

none

Fixed in Version:

Summary:

0001560: Problem with back references to subpatterns in preg_match_all

Description:

When using a back reference within the pattern, the behaviour of preg_match_all differs from the original php implementation. The PEAR template engine (class HTML_Template_IT) doesn't work due to this bug. See attached file for a demonstration. The pattern used in the script is the same as used in the PEAR class.

The demo script contains the same pattern twice, firstly as a single-quoted, secondly as a double-quoted string. The original php implementation treats those differently, Quercus does not. Quercus always behaves as if it were double-quoted.

Steps To Reproduce:

Additional Information:

The original php interpreter outputs:

int(1)
array(1) {
  [0]=>
  array(3) {
    [0]=>
    string(60) " inside block "
    [1]=>
    string(9) "testblock"
    [2]=>
    string(14) " inside block "
  }
}

Quercus outputs:
int(0)
array(0) {
}

Relationships

duplicate of

0001562

closed

sam

Problem with back references to subpatterns in preg_match_all

Attached Files:

Notes