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Sergei Golubchik
2021-07-27 18:45:35 +02:00
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10
pcre/doc/html/pcreapi.html
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@ -1718,7 +1718,7 @@ very long time, and so the <i>match_limit</i> value is also used in this case
<P>
The default value for the limit can be set when PCRE is built; the default
default is 10 million, which handles all but the most extreme cases. You can
override the default by suppling <b>pcre_exec()</b> with a <b>pcre_extra</b>
override the default by supplying <b>pcre_exec()</b> with a <b>pcre_extra</b>
block in which <i>match_limit</i> is set, and PCRE_EXTRA_MATCH_LIMIT is set in
the <i>flags</i> field. If the limit is exceeded, <b>pcre_exec()</b> returns
PCRE_ERROR_MATCHLIMIT.
@ -1749,7 +1749,7 @@ and is ignored, when matching is done using JIT compiled code.
<P>
The default value for <i>match_limit_recursion</i> can be set when PCRE is
built; the default default is the same value as the default for
<i>match_limit</i>. You can override the default by suppling <b>pcre_exec()</b>
<i>match_limit</i>. You can override the default by supplying <b>pcre_exec()</b>
with a <b>pcre_extra</b> block in which <i>match_limit_recursion</i> is set, and
PCRE_EXTRA_MATCH_LIMIT_RECURSION is set in the <i>flags</i> field. If the limit
is exceeded, <b>pcre_exec()</b> returns PCRE_ERROR_RECURSIONLIMIT.
@ -2063,10 +2063,10 @@ lookbehind. For example, consider the pattern
</pre>
which finds occurrences of "iss" in the middle of words. (\B matches only if
the current position in the subject is not a word boundary.) When applied to
the string "Mississipi" the first call to <b>pcre_exec()</b> finds the first
the string "Mississippi" the first call to <b>pcre_exec()</b> finds the first
occurrence. If <b>pcre_exec()</b> is called again with just the remainder of the
subject, namely "issipi", it does not match, because \B is always false at the
start of the subject, which is deemed to be a word boundary. However, if
subject, namely "issippi", it does not match, because \B is always false at
the start of the subject, which is deemed to be a word boundary. However, if
<b>pcre_exec()</b> is passed the entire string again, but with <i>startoffset</i>
set to 4, it finds the second occurrence of "iss" because it is able to look
behind the starting point to discover that it is preceded by a letter.