Implement the "rightchar" feature of match data.
This commit is contained in:
Philip.Hazel
parent
55e279eff2
commit
ac70cacd29
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@ -1,4 +1,4 @@
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.TH PCRE2TEST 1 "12 August 2014" "PCRE 10.00"
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.TH PCRE2TEST 1 "19 August 2014" "PCRE 10.00"
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.SH NAME
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pcre2test - a program for testing Perl-compatible regular expressions.
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.SH SYNOPSIS
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@ -633,6 +633,7 @@ not affect the compilation process.
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aftertext show text after match
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allaftertext show text after captures
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allcaptures show all captures
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allusedtext show all consulted text
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/g global global matching
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jitverify verify JIT usage
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mark show mark values
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@ -691,6 +692,7 @@ pattern.
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aftertext show text after match
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allaftertext show text after captures
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allcaptures show all captures
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allusedtext show all consulted text
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altglobal alternative global matching
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bsr=[anycrlf|unicode] specify \eR handling
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callout_capture show captures at callout time
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@ -735,6 +737,21 @@ contains multiple copies of the same substring. The \fBallaftertext\fP modifier
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requests the same action for captured substrings as well as the main matched
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substring. In each case the remainder is output on the following line with a
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plus character following the capture number.
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.P
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The \fBallusedtext\fP modifier requests that all the text that was consulted
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during a successful pattern match be shown. This affects the output if there
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is a lookbehind at the start of a match, or a lookahead at the end, or if \eK
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is used in the pattern. Characters that precede or follow the start and end of
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the actual match are indicated in the output by '<' or '>' characters
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underneath them. Here is an example:
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.sp
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/(?<=pqr)abc(?=xyz)/
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123pqrabcxyz456\=allusedtext
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0: pqrabcxyz
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<<< >>>
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.sp
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This shows that the matched string is "abc", with the preceding and following
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strings "pqr" and "xyz" also consulted during the match.
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.
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.
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.SS "Showing the value of all capture groups"
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@ -1142,6 +1159,6 @@ Cambridge CB2 3QH, England.
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.rs
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.sp
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.nf
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Last updated: 12 August 2014
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Last updated: 19 August 2014
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Copyright (c) 1997-2014 University of Cambridge.
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.fi
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@ -544,6 +544,8 @@ for (;;)
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BOOL could_continue = reset_could_continue;
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reset_could_continue = FALSE;
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if (ptr > mb->last_used_ptr) mb->last_used_ptr = ptr;
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/* Make the new state list into the active state list and empty the
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new state list. */
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@ -967,6 +969,14 @@ for (;;)
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if (clen > 0)
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{
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if (ptr >= mb->last_used_ptr)
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{
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PCRE2_SPTR temp = ptr + 1;
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#if defined SUPPORT_UTF && PCRE2_CODE_UNIT_WIDTH != 32
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if (utf) { FORWARDCHAR(temp); }
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#endif
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mb->last_used_ptr = temp;
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}
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#ifdef SUPPORT_UTF
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if ((mb->poptions & PCRE2_UCP) != 0)
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{
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@ -3447,6 +3457,7 @@ for (;;)
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/* OK, now we can do the business */
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mb->start_used_ptr = start_match;
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mb->last_used_ptr = start_match;
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mb->recursive = NULL;
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rc = internal_dfa_match(
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@ -3471,7 +3482,7 @@ for (;;)
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match_data->ovector[1] = (PCRE2_SIZE)(end_subject - subject);
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}
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match_data->leftchar = (PCRE2_SIZE)(mb->start_used_ptr - subject);
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match_data->rightchar = 0; /* FIXME */
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match_data->rightchar = mb->last_used_ptr - subject;
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match_data->startchar = (PCRE2_SIZE)(start_match - subject);
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match_data->rc = rc;
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return rc;
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@ -752,6 +752,7 @@ typedef struct match_block {
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PCRE2_SPTR start_match_ptr; /* Start of matched string */
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PCRE2_SPTR end_match_ptr; /* Subject position at end match */
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PCRE2_SPTR start_used_ptr; /* Earliest consulted character */
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PCRE2_SPTR last_used_ptr; /* Latest consulted character */
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PCRE2_SPTR mark; /* Mark pointer to pass back on success */
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PCRE2_SPTR nomatch_mark; /* Mark pointer to pass back on failure */
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PCRE2_SPTR once_target; /* Where to back up to for atomic groups */
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@ -783,6 +784,7 @@ typedef struct dfa_match_block {
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PCRE2_SPTR start_subject ; /* Start of the subject string */
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PCRE2_SPTR end_subject; /* End of subject string */
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PCRE2_SPTR start_used_ptr; /* Earliest consulted character */
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PCRE2_SPTR last_used_ptr; /* Latest consulted character */
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const uint8_t *tables; /* Character tables */
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PCRE2_SIZE start_offset; /* The start offset value */
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uint32_t moptions; /* Match options */
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@ -1450,11 +1450,14 @@ for (;;)
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break;
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/* End of the pattern, either real or forced. */
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/* End of the pattern, either real or forced. In an assertion ACCEPT,
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update the last used pointer. */
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case OP_END:
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case OP_ACCEPT:
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case OP_ASSERT_ACCEPT:
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if (eptr > mb->last_used_ptr) mb->last_used_ptr = eptr;
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case OP_ACCEPT:
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case OP_END:
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/* If we have matched an empty string, fail if not in an assertion and not
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in a recursion if either PCRE2_NOTEMPTY is set, or if PCRE2_NOTEMPTY_ATSTART
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@ -1918,6 +1921,7 @@ for (;;)
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mb->end_match_ptr = eptr; /* For ONCE_NC */
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mb->end_offset_top = offset_top;
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mb->start_match_ptr = mstart;
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if (eptr > mb->last_used_ptr) mb->last_used_ptr = eptr;
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RRETURN(MATCH_MATCH); /* Sets mb->mark */
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}
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@ -1941,6 +1945,7 @@ for (;;)
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{
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mb->end_match_ptr = eptr;
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mb->start_match_ptr = mstart;
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if (eptr > mb->last_used_ptr) mb->last_used_ptr = eptr;
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RRETURN(MATCH_MATCH);
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}
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@ -1984,6 +1989,7 @@ for (;;)
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mb->start_match_ptr = mstart; /* In case \K reset it */
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mb->end_match_ptr = eptr;
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mb->end_offset_top = offset_top;
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if (eptr > mb->last_used_ptr) mb->last_used_ptr = eptr;
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RRETURN(MATCH_KETRPOS);
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}
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@ -2202,6 +2208,9 @@ for (;;)
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}
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else
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{
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PCRE2_SPTR nextptr = eptr + 1;
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FORWARDCHAR(nextptr);
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if (nextptr > mb->last_used_ptr) mb->last_used_ptr = nextptr;
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GETCHAR(c, eptr);
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if ((mb->poptions & PCRE2_UCP) != 0)
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{
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@ -2251,6 +2260,8 @@ for (;;)
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cur_is_word = FALSE;
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}
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else
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{
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if (eptr >= mb->last_used_ptr) mb->last_used_ptr = eptr + 1;
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#ifdef SUPPORT_UTF
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if ((mb->poptions & PCRE2_UCP) != 0)
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{
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@ -2266,6 +2277,7 @@ for (;;)
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cur_is_word = MAX_255(*eptr)
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&& ((mb->ctypes[*eptr] & ctype_word) != 0);
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}
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}
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/* Now see if the situation is what we want */
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@ -6780,6 +6792,7 @@ for(;;)
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mb->start_match_ptr = start_match;
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mb->start_used_ptr = start_match;
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mb->last_used_ptr = start_match;
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mb->match_call_count = 0;
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mb->match_function_type = 0;
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mb->end_offset_top = 0;
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@ -6985,9 +6998,10 @@ if (rc == MATCH_MATCH || rc == MATCH_ACCEPT)
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/* Set the remaining returned values */
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match_data->leftchar = mb->start_used_ptr - subject;
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match_data->rightchar = 0; /* FIXME */
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match_data->startchar = start_match - subject;
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match_data->leftchar = mb->start_used_ptr - subject;
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match_data->rightchar = ((mb->last_used_ptr > mb->end_match_ptr)?
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mb->last_used_ptr : mb->end_match_ptr) - subject;
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return match_data->rc;
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}
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@ -7011,9 +7025,9 @@ else if (match_partial != NULL)
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match_data->ovector[0] = match_partial - subject;
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match_data->ovector[1] = end_subject - subject;
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}
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match_data->leftchar = start_partial - subject;
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match_data->rightchar = 0; /* FIXME */
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match_data->startchar = match_partial - subject;
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match_data->leftchar = start_partial - subject;
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match_data->rightchar = end_subject - subject;
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match_data->rc = PCRE2_ERROR_PARTIAL;
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}
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@ -321,25 +321,26 @@ either on a pattern or a data line, so they must all be distinct. */
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#define CTL_AFTERTEXT 0x00000001u
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#define CTL_ALLAFTERTEXT 0x00000002u
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#define CTL_ALLCAPTURES 0x00000004u
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#define CTL_ALTGLOBAL 0x00000008u
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#define CTL_BINCODE 0x00000010u
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#define CTL_CALLOUT_CAPTURE 0x00000020u
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#define CTL_CALLOUT_NONE 0x00000040u
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#define CTL_DFA 0x00000080u
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#define CTL_FINDLIMITS 0x00000100u
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#define CTL_FULLBINCODE 0x00000200u
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#define CTL_GETALL 0x00000400u
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#define CTL_GLOBAL 0x00000800u
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#define CTL_HEXPAT 0x00001000u
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#define CTL_INFO 0x00002000u
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#define CTL_JITVERIFY 0x00004000u
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#define CTL_MARK 0x00008000u
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#define CTL_MEMORY 0x00010000u
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#define CTL_PATLEN 0x00020000u
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#define CTL_POSIX 0x00040000u
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#define CTL_ALLUSEDTEXT 0x00000008u
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#define CTL_ALTGLOBAL 0x00000010u
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#define CTL_BINCODE 0x00000020u
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#define CTL_CALLOUT_CAPTURE 0x00000040u
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#define CTL_CALLOUT_NONE 0x00000080u
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#define CTL_DFA 0x00000100u
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#define CTL_FINDLIMITS 0x00000200u
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#define CTL_FULLBINCODE 0x00000400u
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#define CTL_GETALL 0x00000800u
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#define CTL_GLOBAL 0x00001000u
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#define CTL_HEXPAT 0x00002000u
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#define CTL_INFO 0x00004000u
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#define CTL_JITVERIFY 0x00008000u
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#define CTL_MARK 0x00010000u
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#define CTL_MEMORY 0x00020000u
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#define CTL_PATLEN 0x00040000u
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#define CTL_POSIX 0x00080000u
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#define CTL_BSR_SET 0x00080000u /* This is informational */
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#define CTL_NL_SET 0x00100000u /* This is informational */
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#define CTL_BSR_SET 0x00100000u /* This is informational */
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#define CTL_NL_SET 0x00200000u /* This is informational */
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#define CTL_DEBUG (CTL_FULLBINCODE|CTL_INFO) /* For setting */
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#define CTL_ANYINFO (CTL_DEBUG|CTL_BINCODE) /* For testing */
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@ -348,8 +349,14 @@ either on a pattern or a data line, so they must all be distinct. */
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/* These are all the controls that may be set either on a pattern or on a
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data line. */
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#define CTL_ALLPD (CTL_AFTERTEXT|CTL_ALLAFTERTEXT|CTL_ALLCAPTURES|\
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CTL_ALTGLOBAL|CTL_GLOBAL|CTL_JITVERIFY|CTL_MARK|\
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#define CTL_ALLPD (CTL_AFTERTEXT|\
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CTL_ALLAFTERTEXT|\
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CTL_ALLCAPTURES|\
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CTL_ALLUSEDTEXT|\
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CTL_ALTGLOBAL|\
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CTL_GLOBAL|\
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CTL_JITVERIFY|\
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CTL_MARK|\
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CTL_MEMORY)
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typedef struct patctl { /* Structure for pattern modifiers. */
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@ -409,6 +416,7 @@ static modstruct modlist[] = {
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{ "allaftertext", MOD_PNDP, MOD_CTL, CTL_ALLAFTERTEXT, PO(control) },
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{ "allcaptures", MOD_PND, MOD_CTL, CTL_ALLCAPTURES, PO(control) },
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{ "allow_empty_class", MOD_PAT, MOD_OPT, PCRE2_ALLOW_EMPTY_CLASS, PO(options) },
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{ "allusedtext", MOD_PNDP, MOD_CTL, CTL_ALLUSEDTEXT, PO(control) },
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{ "alt_bsux", MOD_PAT, MOD_OPT, PCRE2_ALT_BSUX, PO(options) },
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{ "altglobal", MOD_PND, MOD_CTL, CTL_ALTGLOBAL, PO(control) },
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{ "anchored", MOD_PD, MOD_OPT, PCRE2_ANCHORED, PD(options) },
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@ -4417,7 +4425,10 @@ for (gmatched = 0;; gmatched++)
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{
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int i;
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uint8_t *nptr;
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BOOL showallused;
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PCRE2_SIZE *ovector;
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PCRE2_SIZE leftchar = FLD(match_data, leftchar);
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PCRE2_SIZE rightchar = FLD(match_data, rightchar);
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/* This is a check against a lunatic return value. */
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@ -4453,6 +4464,7 @@ for (gmatched = 0;; gmatched++)
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ovector = FLD(match_data, ovector);
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for (i = 0; i < 2*capcount; i += 2)
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{
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PCRE2_SIZE lleft, lmiddle, lright;
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PCRE2_SIZE start = ovector[i];
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PCRE2_SIZE end = ovector[i+1];
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@ -4470,12 +4482,40 @@ for (gmatched = 0;; gmatched++)
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fprintf(outfile, "<unset>\n");
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continue;
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}
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/* For the whole matched string, if ALLUSEDTEXT is set, and if the
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leftmost consulted character is before the start of the match or the
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rightmost consulted character is past the end of the match, we want to
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show all consulted characters, and indicate which were lookarounds. */
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showallused = i == 0 && (dat_datctl.control & CTL_ALLUSEDTEXT) != 0 &&
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(leftchar < start || rightchar > end);
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if (showallused)
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{
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PCHARS(lleft, pp, leftchar, start - leftchar, utf, outfile);
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PCHARS(lmiddle, pp, start, end - start, utf, outfile);
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PCHARS(lright, pp, end, rightchar - end, utf, outfile);
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}
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else
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{
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PCHARSV(pp, start, end - start, utf, outfile);
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}
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#ifdef FIXME
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if (verify_jit && jit_was_used) fprintf(outfile, " (JIT)");
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#endif
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fprintf(outfile, "\n");
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if (showallused)
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{
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PCRE2_SIZE j;
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fprintf(outfile, " ");
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for (j = 0; j < lleft; j++) fprintf(outfile, "<");
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for (j = 0; j < lmiddle; j++) fprintf(outfile, " ");
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for (j = 0; j < lright; j++) fprintf(outfile, ">");
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fprintf(outfile, "\n");
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}
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/* Note: don't use the start/end variables here because we want to
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show the text from what is reported as the end. */
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@ -4049,4 +4049,25 @@ a random value. /Ix
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aaaabcde
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aaaabcde\=ovector=100
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/abc(?=xyz)/allusedtext
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abcxyzpqr
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abcxyzpqr\=aftertext
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/(?<=pqr)abc(?=xyz)/allusedtext
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xyzpqrabcxyzpqr
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xyzpqrabcxyzpqr\=aftertext
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/a\b/
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a.\=allusedtext
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a\=allusedtext
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/abc\Kxyz/
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abcxyz\=allusedtext
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/abc(?=xyz(*ACCEPT))/
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abcxyz\=allusedtext
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/abc(?=abcde)(?=ab)/allusedtext
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abcabcdefg
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# End of testinput2
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@ -1630,4 +1630,7 @@
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/\X?abc/utf,no_start_optimize
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\xff\x7f\x00\x00\x03\x00\x41\xcc\x80\x41\x{300}\x61\x62\x63\x00\=no_utf_check,offset=06
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/(?<=\x{100})\x{200}(?=\x{300})/utf,allusedtext
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\x{100}\x{200}\x{300}
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# End of testinput5
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@ -4783,4 +4783,19 @@
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'\A(?:[^\"]++|\"(?:[^\"]++|\"\")*+\")++'
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NON QUOTED \"QUOT\"\"ED\" AFTER \"NOT MATCHED
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# End of testinput8
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/abc(?=xyz)/allusedtext
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abcxyzpqr
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abcxyzpqr\=aftertext
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/(?<=pqr)abc(?=xyz)/allusedtext
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xyzpqrabcxyzpqr
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xyzpqrabcxyzpqr\=aftertext
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/a\b/
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a.\=allusedtext
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a\=allusedtext
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/abc(?=abcde)(?=ab)/allusedtext
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abcabcdefg
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# End of testinput6
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@ -2123,4 +2123,7 @@
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A\x{2005}Z
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A\x{85}\x{180e}\x{2005}Z
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/(?<=\x{100})\x{200}(?=\x{300})/utf,allusedtext
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\x{100}\x{200}\x{300}
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# End of testinput7
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@ -13680,4 +13680,44 @@ No match
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aaaabcde\=ovector=100
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0: aaaab
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/abc(?=xyz)/allusedtext
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abcxyzpqr
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0: abcxyz
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>>>
|
||||
abcxyzpqr\=aftertext
|
||||
0: abcxyz
|
||||
>>>
|
||||
0+ xyzpqr
|
||||
|
||||
/(?<=pqr)abc(?=xyz)/allusedtext
|
||||
xyzpqrabcxyzpqr
|
||||
0: pqrabcxyz
|
||||
<<< >>>
|
||||
xyzpqrabcxyzpqr\=aftertext
|
||||
0: pqrabcxyz
|
||||
<<< >>>
|
||||
0+ xyzpqr
|
||||
|
||||
/a\b/
|
||||
a.\=allusedtext
|
||||
0: a.
|
||||
>
|
||||
a\=allusedtext
|
||||
0: a
|
||||
|
||||
/abc\Kxyz/
|
||||
abcxyz\=allusedtext
|
||||
0: abcxyz
|
||||
<<<
|
||||
|
||||
/abc(?=xyz(*ACCEPT))/
|
||||
abcxyz\=allusedtext
|
||||
0: abcxyz
|
||||
>>>
|
||||
|
||||
/abc(?=abcde)(?=ab)/allusedtext
|
||||
abcabcdefg
|
||||
0: abcabcde
|
||||
>>>>>
|
||||
|
||||
# End of testinput2
|
||||
|
|
|
|||
|
|
@ -4001,4 +4001,9 @@ Subject length lower bound = 1
|
|||
\xff\x7f\x00\x00\x03\x00\x41\xcc\x80\x41\x{300}\x61\x62\x63\x00\=no_utf_check,offset=06
|
||||
0: A\x{300}abc
|
||||
|
||||
/(?<=\x{100})\x{200}(?=\x{300})/utf,allusedtext
|
||||
\x{100}\x{200}\x{300}
|
||||
0: \x{100}\x{200}\x{300}
|
||||
<<<<<<< >>>>>>>
|
||||
|
||||
# End of testinput5
|
||||
|
|
|
|||
|
|
@ -7659,4 +7659,34 @@ Matched, but offsets vector is too small to show all matches
|
|||
NON QUOTED \"QUOT\"\"ED\" AFTER \"NOT MATCHED
|
||||
0: NON QUOTED "QUOT""ED" AFTER
|
||||
|
||||
# End of testinput8
|
||||
/abc(?=xyz)/allusedtext
|
||||
abcxyzpqr
|
||||
0: abcxyz
|
||||
>>>
|
||||
abcxyzpqr\=aftertext
|
||||
0: abcxyz
|
||||
>>>
|
||||
0+ xyzpqr
|
||||
|
||||
/(?<=pqr)abc(?=xyz)/allusedtext
|
||||
xyzpqrabcxyzpqr
|
||||
0: pqrabcxyz
|
||||
<<< >>>
|
||||
xyzpqrabcxyzpqr\=aftertext
|
||||
0: pqrabcxyz
|
||||
<<< >>>
|
||||
0+ xyzpqr
|
||||
|
||||
/a\b/
|
||||
a.\=allusedtext
|
||||
0: a.
|
||||
>
|
||||
a\=allusedtext
|
||||
0: a
|
||||
|
||||
/abc(?=abcde)(?=ab)/allusedtext
|
||||
abcabcdefg
|
||||
0: abcabcde
|
||||
>>>>>
|
||||
|
||||
# End of testinput6
|
||||
|
|
|
|||
|
|
@ -3771,4 +3771,9 @@ No match
|
|||
A\x{85}\x{180e}\x{2005}Z
|
||||
0: A\x{85}\x{180e}\x{2005}Z
|
||||
|
||||
/(?<=\x{100})\x{200}(?=\x{300})/utf,allusedtext
|
||||
\x{100}\x{200}\x{300}
|
||||
0: \x{100}\x{200}\x{300}
|
||||
<<<<<<< >>>>>>>
|
||||
|
||||
# End of testinput7
|
||||
|
|
|
|||
Loading…
Reference in New Issue