| 319 |
large number of possibilities in their search trees. The classic example is a |
large number of possibilities in their search trees. The classic example is a |
| 320 |
pattern that uses nested unlimited repeats. Internally, PCRE uses a function |
pattern that uses nested unlimited repeats. Internally, PCRE uses a function |
| 321 |
called \fBmatch()\fP which it calls repeatedly (sometimes recursively). The |
called \fBmatch()\fP which it calls repeatedly (sometimes recursively). The |
| 322 |
limit set by \fb--match-limit\fP is imposed on the number of times this |
limit set by \fB--match-limit\fP is imposed on the number of times this |
| 323 |
function is called during a match, which has the effect of limiting the amount |
function is called during a match, which has the effect of limiting the amount |
| 324 |
of backtracking that can take place. |
of backtracking that can take place. |
| 325 |
.sp |
.sp |
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