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Got pcre2test as far as it can go without real compile and match functions.

This commit is contained in:
Philip.Hazel 2014-05-20 18:48:43 +00:00
parent d455d11b62
commit 1b4bcb79ae
6 changed files with 909 additions and 228 deletions
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65
doc/pcre2test.1
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@ -190,7 +190,10 @@ the \fB-help\fP option states whether or not \fBreadline()\fP will be used.
The program handles any number of tests, each of which consists of a set of
input lines. Each set starts with a regular expression pattern, followed by any
number of subject lines to be matched against that pattern. In between sets of
test data, command lines that begin with a hash (#) character may appear.
test data, command lines that begin with a hash (#) character may appear. This
file format, with some restrictions, can also be processed by the
\fBperltest.pl\fP script that is distributed with PCRE2 as a means of checking
that the behaviour of PCRE2 and Perl is the same.
.P
Each subject line is matched separately and independently. If you want to do
multi-line matches, you have to use the \en escape sequence (or \er or \er\en,
@ -223,6 +226,16 @@ pattern.
.sp
This command sets a default modifier list that applies to all subsequent
patterns. Modifiers on a pattern can change these settings.
.sp
#perltest
.sp
The appearance of this line causes all subsequent modifier settings to be
checked for compatibility with the \fBperltest.pl\fP script, which is used to
confirm that Perl gives the same results as PCRE2. Also, apart from comment
lines, none of the other command lines are permitted, because they and many
of the modifiers are specific to \fBpcre2test\fP, and should not be used in
test files that are also processed by \fBperltest.pl\fP. The \fP#perltest\fB
command helps detect tests that are accidentally put in the wrong file.
.sp
#subject <modifier-list>
.sp
@ -416,7 +429,7 @@ about the pattern:
posix use the POSIX API
save=<file name> save compiled pattern
stackguard=<number> test the stackguard feature
tables=[0|1] select internal tables
tables=[0|1|2] select internal tables
.sp
The effects of these modifiers are described in the following sections.
FIXME: Give more examples.
@ -480,11 +493,12 @@ to 7:
3 normal match and soft partial match
4 hard partial match only
6 soft and hard partial match
7 all three modes (default)
7 all three modes
.sp
If JIT compilation is successful, the compiled JIT code will automatically be
used when \fBpcre2_match()\fP is run, except when incompatible run-time
options are specified. For more details, see the
If no number is given, 7 is assumed. If JIT compilation is successful, the
compiled JIT code will automatically be used when \fBpcre2_match()\fP is run,
except when incompatible run-time options are specified. For more details, see
the
.\" HREF
\fBpcre2jit\fP
.\"
@ -503,13 +517,13 @@ The \fB/locale\fP modifier must specify the name of a locale, for example:
.sp
/pattern/locale=fr_FR
.sp
The given locale is set,
\fBpcre2_maketables()\fP is called to build a set of character tables for
the locale, and this is then passed to \fBpcre2_compile()\fP when compiling the
regular expression. The same tables are used when matching the following
subject lines. The \fB/locale\fP modifier applies only to the pattern on which
it appears, but can be given in a \fB#pattern\fP command if a default is
needed.
The given locale is set, \fBpcre2_maketables()\fP is called to build a set of
character tables for the locale, and this is then passed to
\fBpcre2_compile()\fP when compiling the regular expression. The same tables
are used when matching the following subject lines. The \fB/locale\fP modifier
applies only to the pattern on which it appears, but can be given in a
\fB#pattern\fP command if a default is needed. Setting a locale and alternate
character tables are mutually exclusive.
.
.
.SS "Showing pattern memory"
@ -571,12 +585,14 @@ specific set of built-in character tables to be passed to
\fBpcre2_compile()\fP. This is used in the PCRE2 tests to check behaviour with
different character tables. The digit specifies the tables as follows:
.sp
0 the default ASCII tables, as distributed in
0 do not pass any special character tables
1 the default ASCII tables, as distributed in
pcre2_chartables.c.dist
1 a set of tables defining ISO 8859 characters
2 a set of tables defining ISO 8859 characters
.sp
In table 1, some characters whose codes are greater than 128 are identified as
letters, digits, spaces, etc.
In table 2, some characters whose codes are greater than 128 are identified as
letters, digits, spaces, etc. Setting alternate character tables and a locale
are mutually exclusive.
.
.
.SS "Locking out certain modifiers"
@ -627,7 +643,8 @@ not affect the compilation process.
jitverify verify JIT usage
mark show mark values
.sp
These modifiers may not appear in a \fB#pattern\fP command.
These modifiers may not appear in a \fB#pattern\fP command. If you want them as
defaults, set them in a \fB#subject\fP command.
.
.
.SH "SUBJECT MODIFIERS"
@ -730,7 +747,7 @@ set, the current captured groups are output when a callout occurs.
The \fBcallout_fail\fP modifier can be given one or two numbers. If there is
only one number, 1 is returned instead of 0 when a callout of that number is
reached. If two numbers are given, 1 is returned when callout <n> is reached
for the <m>th time. FIXME: this needs checking.
for the <m>th time. FIXME: this needs checking. Disable by m=0?
.
.
.SS "Testing substring extraction functions"
@ -738,7 +755,15 @@ for the <m>th time. FIXME: this needs checking.
.sp
The \fBcopy\fP and \fBget\fP modifiers can be used to test the
\fBpcre2_substring_copy_xxx()\fP and \fBpcre2_substring_get_xxx()\fP functions.
They can be given more than once, and each can specify a group name or number.
They can be given more than once, and each can specify a group name or number,
for example:
.sp
abcd\=copy=1,copy=3,get=G1
.sp
If the \fB#subject\fP command is used to set default copy and get lists, these
can be unset by specifying a negative number for numbered groups and an empty
name for named groups.
.P
The \fBgetall\fP modifier tests \fBpcre2_substring_list_get()\fP, which
extracts all captured substrings.
.P

31
src/pcre2.h
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@ -160,22 +160,21 @@ D is inspected during pcre2_dfa_exec() execution
#define PCRE2_ERROR_BADMODE (-6)
#define PCRE2_ERROR_BADOFFSET (-7)
#define PCRE2_ERROR_BADOPTION (-8)
#define PCRE2_ERROR_BADPARTIAL (-9)
#define PCRE2_ERROR_BADUTF (-10)
#define PCRE2_ERROR_BADUTF_OFFSET (-11)
#define PCRE2_ERROR_CALLOUT (-12) /* Never used by PCRE2 itself */
#define PCRE2_ERROR_INTERNAL (-13)
#define PCRE2_ERROR_JIT_BADOPTION (-14)
#define PCRE2_ERROR_JIT_STACKLIMIT (-15)
#define PCRE2_ERROR_MATCHLIMIT (-16)
#define PCRE2_ERROR_NOMEMORY (-17)
#define PCRE2_ERROR_NOSUBSTRING (-18)
#define PCRE2_ERROR_NULL (-19)
#define PCRE2_ERROR_PARTIAL (-20)
#define PCRE2_ERROR_RECURSELOOP (-21)
#define PCRE2_ERROR_RECURSIONLIMIT (-22)
#define PCRE2_ERROR_UNKNOWN_OPCODE (-23)
#define PCRE2_ERROR_UNSET (-24)
#define PCRE2_ERROR_BADUTF (-9)
#define PCRE2_ERROR_BADUTF_OFFSET (-10)
#define PCRE2_ERROR_CALLOUT (-11) /* Never used by PCRE2 itself */
#define PCRE2_ERROR_INTERNAL (-12)
#define PCRE2_ERROR_JIT_BADOPTION (-13)
#define PCRE2_ERROR_JIT_STACKLIMIT (-14)
#define PCRE2_ERROR_MATCHLIMIT (-15)
#define PCRE2_ERROR_NOMEMORY (-16)
#define PCRE2_ERROR_NOSUBSTRING (-17)
#define PCRE2_ERROR_NULL (-18)
#define PCRE2_ERROR_PARTIAL (-19)
#define PCRE2_ERROR_RECURSELOOP (-20)
#define PCRE2_ERROR_RECURSIONLIMIT (-21)
#define PCRE2_ERROR_UNKNOWN_OPCODE (-22)
#define PCRE2_ERROR_UNSET (-23)
#define PCRE2_ERROR_DFA_BADRESTART (-30)
#define PCRE2_ERROR_DFA_RECURSE (-31)

31
src/pcre2.h.in
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@ -160,22 +160,21 @@ D is inspected during pcre2_dfa_exec() execution
#define PCRE2_ERROR_BADMODE (-6)
#define PCRE2_ERROR_BADOFFSET (-7)
#define PCRE2_ERROR_BADOPTION (-8)
#define PCRE2_ERROR_BADPARTIAL (-9)
#define PCRE2_ERROR_BADUTF (-10)
#define PCRE2_ERROR_BADUTF_OFFSET (-11)
#define PCRE2_ERROR_CALLOUT (-12) /* Never used by PCRE2 itself */
#define PCRE2_ERROR_INTERNAL (-13)
#define PCRE2_ERROR_JIT_BADOPTION (-14)
#define PCRE2_ERROR_JIT_STACKLIMIT (-15)
#define PCRE2_ERROR_MATCHLIMIT (-16)
#define PCRE2_ERROR_NOMEMORY (-17)
#define PCRE2_ERROR_NOSUBSTRING (-18)
#define PCRE2_ERROR_NULL (-19)
#define PCRE2_ERROR_PARTIAL (-20)
#define PCRE2_ERROR_RECURSELOOP (-21)
#define PCRE2_ERROR_RECURSIONLIMIT (-22)
#define PCRE2_ERROR_UNKNOWN_OPCODE (-23)
#define PCRE2_ERROR_UNSET (-24)
#define PCRE2_ERROR_BADUTF (-9)
#define PCRE2_ERROR_BADUTF_OFFSET (-10)
#define PCRE2_ERROR_CALLOUT (-11) /* Never used by PCRE2 itself */
#define PCRE2_ERROR_INTERNAL (-12)
#define PCRE2_ERROR_JIT_BADOPTION (-13)
#define PCRE2_ERROR_JIT_STACKLIMIT (-14)
#define PCRE2_ERROR_MATCHLIMIT (-15)
#define PCRE2_ERROR_NOMEMORY (-16)
#define PCRE2_ERROR_NOSUBSTRING (-17)
#define PCRE2_ERROR_NULL (-18)
#define PCRE2_ERROR_PARTIAL (-19)
#define PCRE2_ERROR_RECURSELOOP (-20)
#define PCRE2_ERROR_RECURSIONLIMIT (-21)
#define PCRE2_ERROR_UNKNOWN_OPCODE (-22)
#define PCRE2_ERROR_UNSET (-23)
#define PCRE2_ERROR_DFA_BADRESTART (-30)
#define PCRE2_ERROR_DFA_RECURSE (-31)

215
src/pcre2_error.c
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@ -46,7 +46,185 @@ POSSIBILITY OF SUCH DAMAGE.
#include "pcre2_internal.h"
/* FIXME: this is currently a placeholder function */
/* FIXME: check out the errors */
#define STRING(a) # a
#define XSTRING(s) STRING(s)
/* The texts of compile-time error messages. Do not ever re-use any error
number, because they are documented. Always add a new error instead. Messages
marked DEAD below are no longer used. This used to be a table of strings, but
in order to reduce the number of relocations needed when a shared library is
loaded dynamically, it is now one long string. We cannot use a table of
offsets, because the lengths of inserts such as XSTRING(MAX_NAME_SIZE) are not
known. Instead, pcre2_get_error_message() counts through to the one it wants -
this isn't a performance issue because these strings are used only when there
is an error.
Each substring ends with \0 to insert a null character. This includes the final
substring, so that the whole string ends with \0\0, which can be detected when
counting through. */
static const char compile_error_texts[] =
"no error\0"
"\\ at end of pattern\0"
"\\c at end of pattern\0"
"unrecognized character follows \\\0"
"numbers out of order in {} quantifier\0"
/* 5 */
"number too big in {} quantifier\0"
"missing terminating ] for character class\0"
"invalid escape sequence in character class\0"
"range out of order in character class\0"
"nothing to repeat\0"
/* 10 */
"operand of unlimited repeat could match the empty string\0" /** DEAD **/
"internal error: unexpected repeat\0"
"unrecognized character after (? or (?-\0"
"POSIX named classes are supported only within a class\0"
"missing )\0"
/* 15 */
"reference to non-existent subpattern\0"
"erroffset passed as NULL\0"
"unknown option bit(s) set\0"
"missing ) after comment\0"
"parentheses nested too deeply\0" /** DEAD **/
/* 20 */
"regular expression is too large\0"
"failed to get memory\0"
"unmatched parentheses\0"
"internal error: code overflow\0"
"unrecognized character after (?<\0"
/* 25 */
"lookbehind assertion is not fixed length\0"
"malformed number or name after (?(\0"
"conditional group contains more than two branches\0"
"assertion expected after (?(\0"
"(?R or (?[+-]digits must be followed by )\0"
/* 30 */
"unknown POSIX class name\0"
"POSIX collating elements are not supported\0"
"this version of PCRE is compiled without UTF support\0"
"spare error\0" /** DEAD **/
"character value in \\x{} or \\o{} is too large\0"
/* 35 */
"invalid condition (?(0)\0"
"\\C not allowed in lookbehind assertion\0"
"PCRE does not support \\L, \\l, \\N{name}, \\U, or \\u\0"
"number after (?C is > 255\0"
"closing ) for (?C expected\0"
/* 40 */
"recursive call could loop indefinitely\0"
"unrecognized character after (?P\0"
"syntax error in subpattern name (missing terminator)\0"
"two named subpatterns have the same name\0"
"invalid UTF-8 string\0"
/* 45 */
"support for \\P, \\p, and \\X has not been compiled\0"
"malformed \\P or \\p sequence\0"
"unknown property name after \\P or \\p\0"
"subpattern name is too long (maximum " XSTRING(MAX_NAME_SIZE) " characters)\0"
"too many named subpatterns (maximum " XSTRING(MAX_NAME_COUNT) ")\0"
/* 50 */
"repeated subpattern is too long\0" /** DEAD **/
"octal value is greater than \\377 in 8-bit non-UTF-8 mode\0"
"internal error: overran compiling workspace\0"
"internal error: previously-checked referenced subpattern not found\0"
"DEFINE group contains more than one branch\0"
/* 55 */
"repeating a DEFINE group is not allowed\0" /** DEAD **/
"inconsistent NEWLINE options\0"
"\\g is not followed by a braced, angle-bracketed, or quoted name/number or by a plain number\0"
"a numbered reference must not be zero\0"
"an argument is not allowed for (*ACCEPT), (*FAIL), or (*COMMIT)\0"
/* 60 */
"(*VERB) not recognized or malformed\0"
"number is too big\0"
"subpattern name expected\0"
"digit expected after (?+\0"
"] is an invalid data character in JavaScript compatibility mode\0"
/* 65 */
"different names for subpatterns of the same number are not allowed\0"
"(*MARK) must have an argument\0"
"this version of PCRE is not compiled with Unicode property support\0"
"\\c must be followed by an ASCII character\0"
"\\k is not followed by a braced, angle-bracketed, or quoted name\0"
/* 70 */
"internal error: unknown opcode in find_fixedlength()\0"
"\\N is not supported in a class\0"
"too many forward references\0"
"disallowed Unicode code point (>= 0xd800 && <= 0xdfff)\0"
"invalid UTF-16 string\0"
/* 75 */
"name is too long in (*MARK), (*PRUNE), (*SKIP), or (*THEN)\0"
"character value in \\u.... sequence is too large\0"
"invalid UTF-32 string\0"
"setting UTF is disabled by the application\0"
"non-hex character in \\x{} (closing brace missing?)\0"
/* 80 */
"non-octal character in \\o{} (closing brace missing?)\0"
"missing opening brace after \\o\0"
"parentheses are too deeply nested\0"
"invalid range in character class\0"
"group name must start with a non-digit\0"
/* 85 */
"parentheses are too deeply nested (stack check)\0"
;
/* Match-time error texts are in the same format. */
static const char match_error_texts[] =
"no error\0"
"no match\0"
"bad count value\0"
"pattern compiled with other endianness\0"
"bad length\0"
/* -5 */
"magic number missing\0"
"pattern compiled in wrong mode: 8/16/32-bit error\0"
"bad offset value\0"
"bad option value\0"
"bad UTF string\0"
/* -10 */
"bad offset into UTF string\0"
"callout error code\0" /* Never returned by PCRE2 itself */
"internal error - pattern overwritten?\0"
"bad JIT option\0"
"JIT stack limit reached\0"
/* -15 */
"match limit exceeded\0"
"no more memory\0"
"unknown substring\0"
"NULL argument passed\0"
"partial match\0"
/* -20 */
"nested recursion at the same subject position\0"
"recursion limit exceeded\0"
"unknown opcode - pattern overwritten?\0"
"value unset\0" /* Used by pcre2_pattern_info() */
"spare -24\0"
/* -25 */
"spare -25\0"
"spare -26\0"
"spare -27\0"
"spare -28\0"
"spare -29\0"
/* -30 */
"invalid data in workspace for DFA restart\0"
"too much recursion for DFA matching\0"
"backreference condition or recursion test not supported for DFA matching\0"
"item unsupported for DFA matching\0"
"match limit not supported for DFA matching\0"
/* -35 */
"workspace size exceeded in DFA matching\0"
"spare -36\0"
"spare -37\0"
"spare -38\0"
"spare -39\0"
/* -40 */
"spare -39\0"
;
/*************************************************
* Return error message *
@ -62,26 +240,51 @@ Arguments:
size size of the buffer
Returns: length of message if all is well
-1 on error
negative on error
*/
PCRE2_EXP_DEFN int PCRE2_CALL_CONVENTION
pcre2_get_error_message(int enumber, PCRE2_UCHAR *buffer, size_t size)
{
char xbuff[128];
const char *message;
size_t i;
const char *message = "Dummy error message";
enumber=enumber;
uint32_t n;
if (size == 0) return PCRE2_ERROR_NOMEMORY;
if (enumber > 0) /* Compile-time error */
{
message = compile_error_texts;
n = enumber;
}
else /* Match-time error */
{
message = match_error_texts;
n = -enumber;
}
for (; n > 0; n--)
{
while (*message++ != CHAR_NULL) {};
if (*message == CHAR_NULL)
{
sprintf(xbuff, "Internal error: no text for error %d", enumber);
break;
}
}
if (size == 0) return -1;
for (i = 0; *message != 0; i++)
{
if (i >= size - 1)
{
buffer[i] = 0; /* Terminate partial message */
return -1;
return PCRE2_ERROR_NOMEMORY;
}
buffer[i] = *message++;
}
buffer[i] = 0;
return i;
}

2
src/pcre2_pattern_info.c
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@ -59,7 +59,7 @@ Arguments:
Returns: 0 if data returned, negative on error
*/
/* FIXME: this is currently incomplete */
/* FIXME: this is currently incomplete. Also, check int vs uint32_t */
PCRE2_EXP_DEFN int PCRE2_CALL_CONVENTION
pcre2_pattern_info(const pcre2_code *code, uint32_t what, void *where)

793
src/pcre2test.c
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