Add replication feature for patterns to pcre2test.
This commit is contained in:
Philip.Hazel
parent
d1b4d99bc5
commit
4ce7652a0e
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@ -222,6 +222,10 @@ overflow.
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64. Improve error message for overly-complicated patterns.
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65. Implemented an optional replication feature for patterns in pcre2test, to
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make it easier to test long repetitive patterns. The tests for 63 above are
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converted to use the new feature.
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Version 10.20 30-June-2015
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--------------------------
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@ -1,4 +1,4 @@
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.TH PCRE2TEST 1 "17 October 2015" "PCRE 10.21"
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.TH PCRE2TEST 1 "30 October 2015" "PCRE 10.21"
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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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@ -218,9 +218,9 @@ Each subject line is matched separately and independently. If you want to do
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multi-line matches, you have to use the \en escape sequence (or \er or \er\en,
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etc., depending on the newline setting) in a single line of input to encode the
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newline sequences. There is no limit on the length of subject lines; the input
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buffer is automatically extended if it is too small. There is a replication
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feature that makes it possible to generate long subject lines without having to
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supply them explicitly.
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buffer is automatically extended if it is too small. There are replication
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features that makes it possible to generate long repetitive pattern or subject
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lines without having to supply them explicitly.
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.P
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An empty line or the end of the file signals the end of the subject lines for a
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test, at which point a new pattern or command line is expected if there is
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@ -460,10 +460,10 @@ a real empty line terminates the data input.
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.SH "PATTERN MODIFIERS"
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.rs
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.sp
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There are three types of modifier that can appear in pattern lines, two of
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which may also be used in a \fB#pattern\fP command. A pattern's modifier list
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can add to or override default modifiers that were set by a previous
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\fB#pattern\fP command.
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There are several types of modifier that can appear in pattern lines. Except
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where noted below, they may also be used in \fB#pattern\fP commands. A
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pattern's modifier list can add to or override default modifiers that were set
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by a previous \fB#pattern\fP command.
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.
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.
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.\" HTML <a name="optionmodifiers"></a>
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@ -629,6 +629,32 @@ PCRE2_ZERO_TERMINATED. However, for patterns specified in hexadecimal, the
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actual length of the pattern is passed.
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.
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.
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.SS "Generating long repetitive patterns"
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.rs
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.sp
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Some tests use long patterns that are very repetitive. Instead of creating a
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very long input line for such a pattern, you can use a special repetition
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feature, similar to the one described for subject lines above. If the
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\fBexpand\fP modifier is present on a pattern, parts of the pattern that have
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the form
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.sp
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\e[<characters>]{<count>}
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.sp
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are expanded before the pattern is passed to \fBpcre2_compile()\fP. For
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example, \e[AB]{6000} is expanded to "ABAB..." 6000 times. This construction
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cannot be nested. An initial "\e[" sequence is recognized only if "]{" followed
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by decimal digits and "}" is found later in the pattern. If not, the characters
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remain in the pattern unaltered.
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.P
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If part of an expanded pattern looks like an expansion, but is really part of
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the actual pattern, unwanted expansion can be avoided by giving two values in
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the quantifier. For example, \e[AB]{6000,6000} is not recognized as an
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expansion item.
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.P
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If the \fBinfo\fP modifier is set on an expanded pattern, the result of the
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expansion is included in the information that is output.
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.
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.
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.SS "JIT compilation"
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.rs
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.sp
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@ -805,8 +831,9 @@ are mutually exclusive.
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.sp
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The following modifiers are really subject modifiers, and are described below.
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However, they may be included in a pattern's modifier list, in which case they
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are applied to every subject line that is processed with that pattern. They do
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not affect the compilation process.
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are applied to every subject line that is processed with that pattern. They may
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not appear in \fB#pattern\fP commands. These modifiers do not affect the
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compilation process.
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.sp
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aftertext show text after match
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allaftertext show text after captures
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@ -1560,6 +1587,6 @@ Cambridge, England.
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.rs
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.sp
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.nf
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Last updated: 17 October 2015
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Last updated: 30 October 2015
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Copyright (c) 1997-2015 University of Cambridge.
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.fi
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220
src/pcre2test.c
220
src/pcre2test.c
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@ -395,22 +395,23 @@ either on a pattern or a data line, so they must all be distinct. */
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#define CTL_CALLOUT_INFO 0x00000080u
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#define CTL_CALLOUT_NONE 0x00000100u
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#define CTL_DFA 0x00000200u
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#define CTL_FINDLIMITS 0x00000400u
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#define CTL_FULLBINCODE 0x00000800u
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#define CTL_GETALL 0x00001000u
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#define CTL_GLOBAL 0x00002000u
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#define CTL_HEXPAT 0x00004000u
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#define CTL_INFO 0x00008000u
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#define CTL_JITFAST 0x00010000u
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#define CTL_JITVERIFY 0x00020000u
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#define CTL_MARK 0x00040000u
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#define CTL_MEMORY 0x00080000u
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#define CTL_NULLCONTEXT 0x00100000u
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#define CTL_POSIX 0x00200000u
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#define CTL_PUSH 0x00400000u
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#define CTL_STARTCHAR 0x00800000u
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#define CTL_SUBSTITUTE_EXTENDED 0x01000000u
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#define CTL_ZERO_TERMINATE 0x02000000u
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#define CTL_EXPAND 0x00000400u
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#define CTL_FINDLIMITS 0x00000800u
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#define CTL_FULLBINCODE 0x00001000u
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#define CTL_GETALL 0x00002000u
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#define CTL_GLOBAL 0x00004000u
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#define CTL_HEXPAT 0x00008000u
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#define CTL_INFO 0x00010000u
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#define CTL_JITFAST 0x00020000u
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#define CTL_JITVERIFY 0x00040000u
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#define CTL_MARK 0x00080000u
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#define CTL_MEMORY 0x00100000u
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#define CTL_NULLCONTEXT 0x00200000u
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#define CTL_POSIX 0x00400000u
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#define CTL_PUSH 0x00800000u
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#define CTL_STARTCHAR 0x01000000u
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#define CTL_SUBSTITUTE_EXTENDED 0x02000000u
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#define CTL_ZERO_TERMINATE 0x04000000u
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#define CTL_BSR_SET 0x80000000u /* This is informational */
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#define CTL_NL_SET 0x40000000u /* This is informational */
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@ -520,6 +521,7 @@ static modstruct modlist[] = {
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{ "dollar_endonly", MOD_PAT, MOD_OPT, PCRE2_DOLLAR_ENDONLY, PO(options) },
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{ "dotall", MOD_PATP, MOD_OPT, PCRE2_DOTALL, PO(options) },
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{ "dupnames", MOD_PATP, MOD_OPT, PCRE2_DUPNAMES, PO(options) },
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{ "expand", MOD_PAT, MOD_CTL, CTL_EXPAND, PO(control) },
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{ "extended", MOD_PATP, MOD_OPT, PCRE2_EXTENDED, PO(options) },
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{ "find_limits", MOD_DAT, MOD_CTL, CTL_FINDLIMITS, DO(control) },
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{ "firstline", MOD_PAT, MOD_OPT, PCRE2_FIRSTLINE, PO(options) },
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@ -606,7 +608,14 @@ static modstruct modlist[] = {
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#define NOTPOP_CONTROLS (CTL_HEXPAT|CTL_POSIX|CTL_PUSH)
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/* Controls that are mutually exclusive. */
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/* Pattern controls that are mutually exclusive. */
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static uint32_t exclusive_pat_controls[] = {
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CTL_POSIX | CTL_HEXPAT,
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CTL_POSIX | CTL_PUSH,
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CTL_EXPAND | CTL_HEXPAT };
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/* Data controls that are mutually exclusive. */
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static uint32_t exclusive_dat_controls[] = {
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CTL_ALLUSEDTEXT | CTL_STARTCHAR,
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@ -2787,6 +2796,46 @@ else /* 16-bit mode */
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}
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/*************************************************
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* Expand input buffers *
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*************************************************/
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/* This function doubles the size of the input buffer and the buffer for
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keeping an 8-bit copy of patterns (pbuffer8), and copies the current buffers to
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the new ones.
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Arguments: none
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Returns: nothing (aborts if malloc() fails)
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*/
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static void
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expand_input_buffers(void)
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{
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int new_pbuffer8_size = 2*pbuffer8_size;
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uint8_t *new_buffer = (uint8_t *)malloc(new_pbuffer8_size);
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uint8_t *new_pbuffer8 = (uint8_t *)malloc(new_pbuffer8_size);
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if (new_buffer == NULL || new_pbuffer8 == NULL)
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{
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fprintf(stderr, "pcre2test: malloc(%d) failed\n", new_pbuffer8_size);
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exit(1);
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}
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memcpy(new_buffer, buffer, pbuffer8_size);
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memcpy(new_pbuffer8, pbuffer8, pbuffer8_size);
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pbuffer8_size = new_pbuffer8_size;
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free(buffer);
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free(pbuffer8);
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buffer = new_buffer;
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pbuffer8 = new_pbuffer8;
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}
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/*************************************************
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* Read or extend an input line *
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*************************************************/
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@ -2859,29 +2908,11 @@ for (;;)
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else
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{
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int new_pbuffer8_size = 2*pbuffer8_size;
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uint8_t *new_buffer = (uint8_t *)malloc(new_pbuffer8_size);
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uint8_t *new_pbuffer8 = (uint8_t *)malloc(new_pbuffer8_size);
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if (new_buffer == NULL || new_pbuffer8 == NULL)
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{
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fprintf(stderr, "pcre2test: malloc(%d) failed\n", new_pbuffer8_size);
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exit(1);
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}
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memcpy(new_buffer, buffer, pbuffer8_size);
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memcpy(new_pbuffer8, pbuffer8, pbuffer8_size);
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pbuffer8_size = new_pbuffer8_size;
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start = new_buffer + (start - buffer);
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here = new_buffer + (here - buffer);
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free(buffer);
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free(pbuffer8);
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buffer = new_buffer;
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pbuffer8 = new_pbuffer8;
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size_t start_offset = start - buffer;
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size_t here_offset = here - buffer;
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expand_input_buffers();
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start = buffer + start_offset;
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here = buffer + here_offset;
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}
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}
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@ -3466,7 +3497,7 @@ Returns: nothing
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static void
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show_controls(uint32_t controls, const char *before)
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{
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fprintf(outfile, "%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s",
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fprintf(outfile, "%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s",
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before,
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((controls & CTL_AFTERTEXT) != 0)? " aftertext" : "",
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((controls & CTL_ALLAFTERTEXT) != 0)? " allaftertext" : "",
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@ -3479,6 +3510,7 @@ fprintf(outfile, "%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s",
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((controls & CTL_CALLOUT_INFO) != 0)? " callout_info" : "",
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((controls & CTL_CALLOUT_NONE) != 0)? " callout_none" : "",
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((controls & CTL_DFA) != 0)? " dfa" : "",
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((controls & CTL_EXPAND) != 0)? " expand" : "",
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((controls & CTL_FINDLIMITS) != 0)? " find_limits" : "",
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((controls & CTL_FULLBINCODE) != 0)? " fullbincode" : "",
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((controls & CTL_GETALL) != 0)? " getall" : "",
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@ -4262,6 +4294,7 @@ static int
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process_pattern(void)
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{
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BOOL utf;
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uint32_t k;
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uint8_t *p = buffer;
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const uint8_t *use_tables;
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unsigned int delimiter = *p++;
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@ -4311,6 +4344,19 @@ patlen = p - buffer - 2;
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if (!decode_modifiers(p, CTX_PAT, &pat_patctl, NULL)) return PR_SKIP;
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utf = (pat_patctl.options & PCRE2_UTF) != 0;
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/* Check for mutually exclusive modifiers. */
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for (k = 0; k < sizeof(exclusive_pat_controls)/sizeof(uint32_t); k++)
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{
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uint32_t c = pat_patctl.control & exclusive_pat_controls[k];
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if (c != 0 && c != (c & (~c+1)))
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{
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show_controls(c, "** Not allowed together:");
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fprintf(outfile, "\n");
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return PR_SKIP;
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}
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}
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/* Assume full JIT compile for jitverify and/or jitfast if nothing else was
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specified. */
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@ -4318,28 +4364,16 @@ if (pat_patctl.jit == 0 &&
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(pat_patctl.control & (CTL_JITVERIFY|CTL_JITFAST)) != 0)
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pat_patctl.jit = 7;
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/* POSIX and 'push' do not play together. */
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if ((pat_patctl.control & (CTL_POSIX|CTL_PUSH)) == (CTL_POSIX|CTL_PUSH))
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{
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fprintf(outfile, "** The POSIX interface is incompatible with 'push'\n");
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return PR_ABEND;
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}
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/* Now copy the pattern to pbuffer8 for use in 8-bit testing and for reflecting
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in callouts. Convert to binary if required. */
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in callouts. Convert from hex if required; this must necessarily be fewer
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characters so will always fit in pbuffer8. Alternatively, process for
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repetition if requested. */
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if ((pat_patctl.control & CTL_HEXPAT) != 0)
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{
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uint8_t *pp, *pt;
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uint32_t c, d;
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if ((pat_patctl.control & CTL_POSIX) != 0)
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{
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fprintf(outfile, "** Hex patterns are not supported for the POSIX API\n");
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return PR_SKIP;
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}
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pt = pbuffer8;
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for (pp = buffer + 1; *pp != 0; pp++)
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{
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@ -4362,6 +4396,80 @@ if ((pat_patctl.control & CTL_HEXPAT) != 0)
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*pt = 0;
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patlen = pt - pbuffer8;
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}
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else if ((pat_patctl.control & CTL_EXPAND) != 0)
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{
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uint8_t *pp, *pt;
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pt = pbuffer8;
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for (pp = buffer + 1; *pp != 0; pp++)
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{
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uint8_t *pc = pp;
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uint32_t count = 1;
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size_t length = 1;
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/* Check for replication syntax; if not found, the defaults just set will
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prevail and one character will be copied. */
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if (pp[0] == '\\' && pp[1] == '[')
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{
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uint8_t *pe;
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for (pe = pp + 2; *pe != 0; pe++)
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{
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if (pe[0] == ']' && pe[1] == '{')
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{
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uint32_t clen = pe - pc - 2;
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uint32_t i = 0;
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pe += 2;
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while (isdigit(*pe)) i = i * 10 + *pe++ - '0';
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if (*pe == '}')
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{
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if (i == 0)
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{
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fprintf(outfile, "** Zero repeat not allowed\n");
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return PR_SKIP;
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}
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pc += 2;
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count = i;
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length = clen;
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pp = pe;
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break;
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}
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}
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}
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}
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/* Add to output. If the buffer is too small expand it. The function for
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expanding buffers always keeps buffer and pbuffer8 in step as far as their
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size goes. */
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while (pt + count * length > pbuffer8 + pbuffer8_size)
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{
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size_t pc_offset = pc - buffer;
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size_t pp_offset = pp - buffer;
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size_t pt_offset = pt - pbuffer8;
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expand_input_buffers();
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pc = buffer + pc_offset;
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pp = buffer + pp_offset;
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pt = pbuffer8 + pt_offset;
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}
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while (count-- > 0)
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{
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memcpy(pt, pc, length);
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pt += length;
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}
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}
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*pt = 0;
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patlen = pt - pbuffer8;
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if ((pat_patctl.control & CTL_INFO) != 0)
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fprintf(outfile, "Expanded: %s\n", pbuffer8);
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}
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/* Neither hex nor expanded, just copy the input verbatim. */
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else
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{
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strncpy((char *)pbuffer8, (char *)(buffer+1), patlen + 1);
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File diff suppressed because one or more lines are too long
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@ -252,8 +252,10 @@
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/(*MARK:a\x{100}b)z/alt_verbnames
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/(?'ABC'[bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar](*THEN:AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))/
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# Use "expand" to create some very long patterns
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/(?'ABC'[bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))/
|
||||
/(?'ABC'\[[bar](]{105}*THEN:\[A]{255}\[)]{106}/expand
|
||||
|
||||
/(?'ABC'\[[bar](]{106}*THEN:\[A]{255}\[)]{107}/expand
|
||||
|
||||
# End of testinput9
|
||||
|
|
|
|||
File diff suppressed because one or more lines are too long
File diff suppressed because one or more lines are too long
|
|
@ -355,9 +355,11 @@ Failed: error 177 at offset 6: character code point value in \u.... sequence is
|
|||
/(*MARK:a\x{100}b)z/alt_verbnames
|
||||
Failed: error 134 at offset 14: character code point value in \x{} or \o{} is too large
|
||||
|
||||
/(?'ABC'[bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar](*THEN:AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))/
|
||||
# Use "expand" to create some very long patterns
|
||||
|
||||
/(?'ABC'[bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]([bar]))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))/
|
||||
/(?'ABC'\[[bar](]{105}*THEN:\[A]{255}\[)]{106}/expand
|
||||
|
||||
/(?'ABC'\[[bar](]{106}*THEN:\[A]{255}\[)]{107}/expand
|
||||
Failed: error 186 at offset 637: regular expression is too complicated
|
||||
|
||||
# End of testinput9
|
||||
|
|
|
|||
Loading…
Reference in New Issue