/[pcre]/code/trunk/doc/pcrepattern.3
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revision 464 by ph10, Sun Oct 18 19:50:34 2009 UTC revision 469 by ph10, Mon Oct 19 14:38:48 2009 UTC
# Line 2206  strings. Another example is given in the Line 2206  strings. Another example is given in the
2206  Like recursive subpatterns, a subroutine call is always treated as an atomic  Like recursive subpatterns, a subroutine call is always treated as an atomic
2207  group. That is, once it has matched some of the subject string, it is never  group. That is, once it has matched some of the subject string, it is never
2208  re-entered, even if it contains untried alternatives and there is a subsequent  re-entered, even if it contains untried alternatives and there is a subsequent
2209  matching failure. Any capturing parentheses that are set during the subroutine  matching failure. Any capturing parentheses that are set during the subroutine
2210  call revert to their previous values afterwards.  call revert to their previous values afterwards.
2211  .P  .P
2212  When a subpattern is used as a subroutine, processing options such as  When a subpattern is used as a subroutine, processing options such as
# Line 2291  a backtracking algorithm. With the excep Line 2291  a backtracking algorithm. With the excep
2291  failing negative assertion, they cause an error if encountered by  failing negative assertion, they cause an error if encountered by
2292  \fBpcre_dfa_exec()\fP.  \fBpcre_dfa_exec()\fP.
2293  .P  .P
2294  If any of these verbs are used in an assertion or subroutine subpattern  If any of these verbs are used in an assertion or subroutine subpattern
2295  (including recursive subpatterns), their effect is confined to that subpattern;  (including recursive subpatterns), their effect is confined to that subpattern;
2296  it does not extend to the surrounding pattern. Note that such subpatterns are  it does not extend to the surrounding pattern. Note that such subpatterns are
2297  processed as anchored at the point where they are tested.  processed as anchored at the point where they are tested.

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