* License or the Artistic License, as specified in the README file.
*
*/
+
+#if ! defined(PERL_REGCOMP_H_) && ( defined(PERL_CORE) \
+ || defined(PERL_EXT_RE_BUILD))
+#define PERL_REGCOMP_H_
+
#include "regcharclass.h"
/* Convert branch sequences to more efficient trie ops? */
#endif
/*
- * The "internal use only" fields in regexp.h are present to pass info from
- * compile to execute that permits the execute phase to run lots faster on
- * simple cases. They are:
- *
- * regstart sv that must begin a match; NULL if none obvious
- * reganch is the match anchored (at beginning-of-line only)?
- * regmust string (pointer into program) that match must include, or NULL
- * [regmust changed to SV* for bminstr()--law]
- * regmlen length of regmust string
- * [regmlen not used currently]
- *
- * Regstart and reganch permit very fast decisions on suitable starting points
- * for a match, cutting down the work a lot. Regmust permits fast rejection
- * of lines that cannot possibly match. The regmust tests are costly enough
- * that pregcomp() supplies a regmust only if the r.e. contains something
- * potentially expensive (at present, the only such thing detected is * or +
- * at the start of the r.e., which can involve a lot of backup). Regmlen is
- * supplied because the test in pregexec() needs it and pregcomp() is computing
- * it anyway.
- * [regmust is now supplied always. The tests that use regmust have a
- * heuristic that disables the test if it usually matches.]
- *
- * [In fact, we now use regmust in many cases to locate where the search
- * starts in the string, so if regback is >= 0, the regmust search is never
- * wasted effort. The regback variable says how many characters back from
- * where regmust matched is the earliest possible start of the match.
- * For instance, /[a-z].foo/ has a regmust of 'foo' and a regback of 2.]
- */
-
-/*
* Structure for regexp "program". This is essentially a linear encoding
* of a nondeterministic finite-state machine (aka syntax charts or
* "railroad normal form" in parsing technology). Each node is an opcode
/* This is the stuff that used to live in regexp.h that was truly
private to the engine itself. It now lives here. */
-
-
typedef struct regexp_internal {
- int name_list_idx; /* Optional data index of an array of paren names */
union {
U32 *offsets; /* offset annotations 20001228 MJD
data about mapping the program to the
Used to make it easier to clone and free arbitrary
data that the regops need. Often the ARG field of
a regop is an index into this structure */
- struct reg_code_block *code_blocks;/* positions of literal (?{}) */
- int num_code_blocks; /* size of code_blocks[] */
+ struct reg_code_blocks *code_blocks;/* positions of literal (?{}) */
+ int name_list_idx; /* Optional data index of an array of paren names */
regnode program[1]; /* Unwarranted chumminess with compiler. */
} regexp_internal;
#define PREGf_ANCH_MBOL 0x00000400
#define PREGf_ANCH_SBOL 0x00000800
#define PREGf_ANCH_GPOS 0x00001000
+#define PREGf_RECURSE_SEEN 0x00002000
#define PREGf_ANCH \
( PREGf_ANCH_SBOL | PREGf_ANCH_GPOS | PREGf_ANCH_MBOL )
char string[1];
};
+struct regnode_lstring { /* Constructed this way to keep the string aligned. */
+ U8 flags;
+ U8 type;
+ U16 next_off;
+ U32 str_len; /* Only 18 bits allowed before would overflow 'next_off' */
+ char string[1];
+};
+
+struct regnode_anyofhs { /* Constructed this way to keep the string aligned. */
+ U8 str_len;
+ U8 type;
+ U16 next_off;
+ U32 arg1; /* set by set_ANYOF_arg() */
+ char string[1];
+};
+
/* Argument bearing node - workhorse,
arg1 is often for the data field */
struct regnode_1 {
U32 arg1;
};
+/* Node whose argument is 'SV *'. This needs to be used very carefully in
+ * situations where pointers won't become invalid because of, say re-mallocs */
+struct regnode_p {
+ U8 flags;
+ U8 type;
+ U16 next_off;
+ SV * arg1;
+};
+
/* Similar to a regnode_1 but with an extra signed argument */
struct regnode_2L {
U8 flags;
U16 arg2;
};
-/* This give the number of code points that can be in the bitmap of an ANYOF
- * node. The shift number must currently be one of: 8..12. It can't be less
- * than 8 (256) because some code relies on it being at least that. Above 12
- * (4096), and you start running into warnings that some data structure widths
- * have been exceeded, though the test suite as of this writing still passes
- * for up through 16, which is as high as anyone would ever want to go,
- * encompassing all of the Unicode BMP, and thus including all the economically
- * important world scripts. At 12 most of them are: including Arabic,
- * Cyrillic, Greek, Hebrew, Indian subcontinent, Latin, and Thai; but not Han,
- * Japanese, nor Korean. (The regarglen structure in regnodes.h is a U8, and
- * the trie types TRIEC and AHOCORASICKC are larger than U8 for shift values
- * below above 12.) Be sure to benchmark before changing, as larger sizes do
- * significantly slow down the test suite */
-#define NUM_ANYOF_CODE_POINTS (1 << 8)
-
#define ANYOF_BITMAP_SIZE (NUM_ANYOF_CODE_POINTS / 8) /* 8 bits/Byte */
/* Note that these form structs which are supersets of the next smaller one, by
};
/* has runtime (locale) \d, \w, ..., [:posix:] classes */
-struct regnode_charclass_class {
+struct regnode_charclass_posixl {
U8 flags; /* ANYOF_MATCHES_POSIXL bit must go here */
U8 type;
U16 next_off;
Impose a limit of REG_INFTY on various pattern matching operations
to limit stack growth and to avoid "infinite" recursions.
*/
-/* The default size for REG_INFTY is I16_MAX, which is the same as
- SHORT_MAX (see perl.h). Unfortunately I16 isn't necessarily 16 bits
- (see handy.h). On the Cray C90, sizeof(short)==4 and hence I16_MAX is
- ((1<<31)-1), while on the Cray T90, sizeof(short)==8 and I16_MAX is
- ((1<<63)-1). To limit stack growth to reasonable sizes, supply a
+/* The default size for REG_INFTY is U16_MAX, which is the same as
+ USHORT_MAX (see perl.h). Unfortunately U16 isn't necessarily 16 bits
+ (see handy.h). On the Cray C90, sizeof(short)==4 and hence U16_MAX is
+ ((1<<32)-1), while on the Cray T90, sizeof(short)==8 and U16_MAX is
+ ((1<<64)-1). To limit stack growth to reasonable sizes, supply a
smaller default.
--Andy Dougherty 11 June 1998
*/
#if SHORTSIZE > 2
# ifndef REG_INFTY
-# define REG_INFTY ((1<<15)-1)
+# define REG_INFTY nBIT_UMAX(16)
# endif
#endif
#ifndef REG_INFTY
-# define REG_INFTY I16_MAX
+# define REG_INFTY U16_MAX
#endif
#define ARG_VALUE(arg) (arg)
#undef ARG2
#define ARG(p) ARG_VALUE(ARG_LOC(p))
+#define ARGp(p) ARG_VALUE(ARGp_LOC(p))
#define ARG1(p) ARG_VALUE(ARG1_LOC(p))
#define ARG2(p) ARG_VALUE(ARG2_LOC(p))
#define ARG2L(p) ARG_VALUE(ARG2L_LOC(p))
#define ARG_SET(p, val) ARG__SET(ARG_LOC(p), (val))
+#define ARGp_SET(p, val) ARG__SET(ARGp_LOC(p), (val))
#define ARG1_SET(p, val) ARG__SET(ARG1_LOC(p), (val))
#define ARG2_SET(p, val) ARG__SET(ARG2_LOC(p), (val))
#define ARG2L_SET(p, val) ARG__SET(ARG2L_LOC(p), (val))
#undef OP
#undef OPERAND
-#undef MASK
#undef STRING
#define OP(p) ((p)->type)
#define FLAGS(p) ((p)->flags) /* Caution: Doesn't apply to all \
regnode types. For some, it's the \
character set of the regnode */
-#define OPERAND(p) (((struct regnode_string *)p)->string)
-#define MASK(p) ((char*)OPERAND(p))
-#define STR_LEN(p) (((struct regnode_string *)p)->str_len)
-#define STRING(p) (((struct regnode_string *)p)->string)
-#define STR_SZ(l) ((l + sizeof(regnode) - 1) / sizeof(regnode))
-#define NODE_SZ_STR(p) (STR_SZ(STR_LEN(p))+1)
+#define STR_LENs(p) (__ASSERT_(OP(p) != LEXACT && OP(p) != LEXACT_REQ8) \
+ ((struct regnode_string *)p)->str_len)
+#define STRINGs(p) (__ASSERT_(OP(p) != LEXACT && OP(p) != LEXACT_REQ8) \
+ ((struct regnode_string *)p)->string)
+#define OPERANDs(p) STRINGs(p)
+
+/* Long strings. Currently limited to length 18 bits, which handles a 262000
+ * byte string. The limiting factor is the 16 bit 'next_off' field, which
+ * points to the next regnode, so the furthest away it can be is 2**16. On
+ * most architectures, regnodes are 2**2 bytes long, so that yields 2**18
+ * bytes. Should a longer string be desired, we could increase it to 26 bits
+ * fairly easily, by changing this node to have longj type which causes the ARG
+ * field to be used for the link to the next regnode (although code would have
+ * to be changed to account for this), and then use a combination of the flags
+ * and next_off fields for the length. To get 34 bit length, also change the
+ * node to be an ARG2L, using the second 32 bit field for the length, and not
+ * using the flags nor next_off fields at all. One could have an llstring node
+ * and even an lllstring type. */
+#define STR_LENl(p) (__ASSERT_(OP(p) == LEXACT || OP(p) == LEXACT_REQ8) \
+ (((struct regnode_lstring *)p)->str_len))
+#define STRINGl(p) (__ASSERT_(OP(p) == LEXACT || OP(p) == LEXACT_REQ8) \
+ (((struct regnode_lstring *)p)->string))
+#define OPERANDl(p) STRINGl(p)
+
+#define STR_LEN(p) ((OP(p) == LEXACT || OP(p) == LEXACT_REQ8) \
+ ? STR_LENl(p) : STR_LENs(p))
+#define STRING(p) ((OP(p) == LEXACT || OP(p) == LEXACT_REQ8) \
+ ? STRINGl(p) : STRINGs(p))
+#define OPERAND(p) STRING(p)
+
+/* The number of (smallest) regnode equivalents that a string of length l bytes
+ * occupies */
+#define STR_SZ(l) (((l) + sizeof(regnode) - 1) / sizeof(regnode))
+
+/* The number of (smallest) regnode equivalents that the EXACTISH node 'p'
+ * occupies */
+#define NODE_SZ_STR(p) (STR_SZ(STR_LEN(p)) + 1 + regarglen[(p)->type])
+
+#define setSTR_LEN(p,v) \
+ STMT_START{ \
+ if (OP(p) == LEXACT || OP(p) == LEXACT_REQ8) \
+ ((struct regnode_lstring *)(p))->str_len = (v); \
+ else \
+ ((struct regnode_string *)(p))->str_len = (v); \
+ } STMT_END
+
+#define ANYOFR_BASE_BITS 20
+#define ANYOFRbase(p) (ARG(p) & nBIT_MASK(ANYOFR_BASE_BITS))
+#define ANYOFRdelta(p) (ARG(p) >> ANYOFR_BASE_BITS)
#undef NODE_ALIGN
#undef ARG_LOC
#define NODE_ALIGN(node)
#define ARG_LOC(p) (((struct regnode_1 *)p)->arg1)
+#define ARGp_LOC(p) (((struct regnode_p *)p)->arg1)
#define ARG1_LOC(p) (((struct regnode_2 *)p)->arg1)
#define ARG2_LOC(p) (((struct regnode_2 *)p)->arg2)
#define ARG2L_LOC(p) (((struct regnode_2L *)p)->arg2)
#define NODE_STEP_REGNODE 1 /* sizeof(regnode)/sizeof(regnode) */
#define EXTRA_STEP_2ARGS EXTRA_SIZE(struct regnode_2)
-#define NODE_STEP_B 4
-
#define NEXTOPER(p) ((p) + NODE_STEP_REGNODE)
#define PREVOPER(p) ((p) - NODE_STEP_REGNODE)
-#define FILL_ADVANCE_NODE(ptr, op) STMT_START { \
- (ptr)->type = op; (ptr)->next_off = 0; (ptr)++; } STMT_END
-#define FILL_ADVANCE_NODE_ARG(ptr, op, arg) STMT_START { \
- ARG_SET(ptr, arg); FILL_ADVANCE_NODE(ptr, op); (ptr) += 1; } STMT_END
-#define FILL_ADVANCE_NODE_2L_ARG(ptr, op, arg1, arg2) \
- STMT_START { \
- ARG_SET(ptr, arg1); \
- ARG2L_SET(ptr, arg2); \
- FILL_ADVANCE_NODE(ptr, op); \
- (ptr) += 2; \
- } STMT_END
+#define FILL_NODE(offset, op) \
+ STMT_START { \
+ OP(REGNODE_p(offset)) = op; \
+ NEXT_OFF(REGNODE_p(offset)) = 0; \
+ } STMT_END
+#define FILL_ADVANCE_NODE(offset, op) \
+ STMT_START { \
+ FILL_NODE(offset, op); \
+ (offset)++; \
+ } STMT_END
+#define FILL_ADVANCE_NODE_ARG(offset, op, arg) \
+ STMT_START { \
+ ARG_SET(REGNODE_p(offset), arg); \
+ FILL_ADVANCE_NODE(offset, op); \
+ /* This is used generically for other operations \
+ * that have a longer argument */ \
+ (offset) += regarglen[op]; \
+ } STMT_END
+#define FILL_ADVANCE_NODE_ARGp(offset, op, arg) \
+ STMT_START { \
+ ARGp_SET(REGNODE_p(offset), arg); \
+ FILL_ADVANCE_NODE(offset, op); \
+ (offset) += regarglen[op]; \
+ } STMT_END
+#define FILL_ADVANCE_NODE_2L_ARG(offset, op, arg1, arg2) \
+ STMT_START { \
+ ARG_SET(REGNODE_p(offset), arg1); \
+ ARG2L_SET(REGNODE_p(offset), arg2); \
+ FILL_ADVANCE_NODE(offset, op); \
+ (offset) += 2; \
+ } STMT_END
#define REG_MAGIC 0234
-#define SIZE_ONLY (RExC_emit == (regnode *) & RExC_emit_dummy)
-#define PASS1 SIZE_ONLY
-#define PASS2 (! SIZE_ONLY)
-
/* An ANYOF node is basically a bitmap with the index being a code point. If
* the bit for that code point is 1, the code point matches; if 0, it doesn't
* match (complemented if inverted). There is an additional mechanism to deal
* never reach this high). */
#define ANYOF_ONLY_HAS_BITMAP ((U32) -1)
-/* When the bimap isn't completely sufficient for handling the ANYOF node,
+/* When the bitmap isn't completely sufficient for handling the ANYOF node,
* flags (in node->flags of the ANYOF node) get set to indicate this. These
* are perennially in short supply. Beyond several cases where warnings need
* to be raised under certain circumstances, currently, there are six cases
*
* 1) The bitmap has a compiled-in very finite size. So something else needs
* to be used to specify if a code point that is too large for the bitmap
- * actually matches. The mechanism currently is a swash or inversion
+ * actually matches. The mechanism currently is an inversion
* list. ANYOF_ONLY_HAS_BITMAP, described above, being TRUE indicates
* there are no matches of too-large code points. But if it is FALSE,
* then almost certainly there are matches too large for the bitmap. (The
* 2) A subset of item 1) is if all possible code points outside the bitmap
* match. This is a common occurrence when the class is complemented,
* like /[^ij]/. Therefore a bit is reserved to indicate this,
- * ANYOF_MATCHES_ALL_ABOVE_BITMAP. If it became necessary, this bit could
- * be replaced by using the normal swash mechanism, but with a performance
- * penalty.
+ * rather than having an inversion list created,
+ * ANYOF_MATCHES_ALL_ABOVE_BITMAP.
* 3) Under /d rules, it can happen that code points that are in the upper
* latin1 range (\x80-\xFF or their equivalents on EBCDIC platforms) match
* only if the runtime target string being matched against is UTF-8. For
* example /[\w[:punct:]]/d. This happens only for posix classes (with a
- * couple of exceptions, like \d), and all such ones also have
- * above-bitmap matches. Thus, 3) implies 1) as well. Note that /d rules
- * are no longer encouraged; 'use 5.14' or higher deselects them. But a
- * flag is required so that they can be properly handled. But it can be a
- * shared flag: see 5) below.
- * 4) Also under /d rules, something like /[\Wfoo] will match everything in
+ * couple of exceptions, like \d where it doesn't happen), and all such
+ * ones also have above-bitmap matches. Thus, 3) implies 1) as well.
+ * Note that /d rules are no longer encouraged; 'use 5.14' or higher
+ * deselects them. But a flag is required so that they can be properly
+ * handled. But it can be a shared flag: see 5) below.
+ * 4) Also under /d rules, something like /[\Wfoo]/ will match everything in
* the \x80-\xFF range, unless the string being matched against is UTF-8.
- * A swash could be created for this case, but this is relatively common,
- * and it turns out that it's all or nothing: if any one of these code
- * points matches, they all do. Hence a single bit suffices. We use a
- * shared bit that doesn't take up space by itself:
- * ANYOF_SHARED_d_MATCHES_ALL_NON_UTF8_NON_ASCII_non_d_WARN_SUPER.
- * This also implies 1), with one exception: [:^cntrl:].
+ * An inversion list could be created for this case, but this is
+ * relatively common, and it turns out that it's all or nothing: if any
+ * one of these code points matches, they all do. Hence a single bit
+ * suffices. We use a shared flag that doesn't take up space by itself:
+ * ANYOF_SHARED_d_MATCHES_ALL_NON_UTF8_NON_ASCII_non_d_WARN_SUPER. This
+ * also implies 1), with one exception: [:^cntrl:].
* 5) A user-defined \p{} property may not have been defined by the time the
* regex is compiled. In this case, we don't know until runtime what it
* will match, so we have to assume it could match anything, including
* is a better way to accomplish what this feature does. This case also
* implies 1).
* ANYOF_SHARED_d_UPPER_LATIN1_UTF8_STRING_MATCHES_non_d_RUNTIME_USER_PROP
- * is the shared bit.
+ * is the shared flag.
* 6) /[foo]/il may have folds that are only valid if the runtime locale is a
* UTF-8 one. These are quite rare, so it would be good to avoid the
* expense of looking for them. But /l matching is slow anyway, and we've
- * traditionally not worried to much about its performance. And this
- * condition requires the ANYOF_LOC_FOLD flag to be set, so testing for
+ * traditionally not worried too much about its performance. And this
+ * condition requires the ANYOFL_FOLD flag to be set, so testing for
* that flag would be sufficient to rule out most cases of this. So it is
- * unclear if this should have a flag or not. But, one is currently
- * allocated for this purpose, ANYOF_ONLY_UTF8_LOC_FOLD_MATCHES (and the
- * text below indicates how to share it, should another bit be needed).
+ * unclear if this should have a flag or not. But, this flag can be
+ * shared with another, so it doesn't occupy extra space.
+ *
+ * At the moment, there is one spare bit, but this could be increased by
+ * various tricks:
*
- * At the moment, there are no spare bits, but this could be changed by various
- * tricks. Notice that item 6) is not independent of the ANYOF_LOC_FOLD flag
- * below. Also, the ANYOF_LOC_REQ_UTF8 flag is set only if both these aren't.
- * We can therefore use a 2-bit field to represent these 3 flags, as follows:
- * 00 => ANYOF_LOC_REQ_UTF8
- * 01 => no folding
- * 10 => ANYOF_LOC_FOLD alone
- * 11 => ANYOF_ONLY_UTF8_LOC_FOLD_MATCHES
+ * If just one more bit is needed, as of this writing it seems to khw that the
+ * best choice would be to make ANYOF_MATCHES_ALL_ABOVE_BITMAP not a flag, but
+ * something like
*
- * Beyond that, note that the information may be conveyed by creating new
- * regnode types. This is not the best solution, as shown later in this
- * paragraph, but it is something that is feasible. We could have a regnode
- * for ANYOF_INVERT, for example. A complication of this is that the regexec.c
- * REGINCLASS macro assumes that it can just use the bitmap if no flags are
- * set. This would have to be changed to add extra tests for the node type, or
- * a special bit reserved that means unspecified special handling, and then the
- * node-type would be used internally to sort that out. So we could gain a bit
- * by having an ANYOF_SPECIAL bit, and a node type for INVERT, and another for
- * POSIXL, and still another for INVERT_POSIXL. This example illustrates one
- * problem with this, a combinatorial explosion of node types. The one node
- * type khw can think of that doesn't have this explosion issue is
- * ANYOF_LOC_REQ_UTF8, but you'd do this only if you haven't done the 2-bit
- * field trick above. This bit is a natural candidate for being a separate
- * node type because it is a specialization of the current ANYOFL, and because
- * no other ANYOFL-only bits are set when it is; also most of its uses are
- * actually outside the reginclass() function, so this could be done with no
- * performance penalty. But again, the 2-bit field trick combines this bit so
- * it doesn't take up space anyway. Another issue when turning a bit into a
- * node type, is that a SSC may use that bit -- not just a regular ANYOF[DL]?.
- * In the case of ANYOF_LOC_REQ_UTF8, the only likely problem is accurately
- * settting the SSC node-type to the new one, which would likely involve
- * S_ssc_or and S_ssc_and, and not how the SSC currently gets set to ANYOFL.
+ * #define ANYOF_MATCHES_ALL_ABOVE_BITMAP ((U32) -2)
*
- * Another possibility is to instead rename the ANYOF_POSIXL bit to be
- * ANYOFL_LARGE, to mean that the ANYOF node has an extra 32 bits beyond what a
- * regular one does. That's what it effectively means now, with the extra
- * space all for the POSIX class bits. But those classes actually only occupy
- * 30 bits, so the 2-bit field or 2 of the locale bits could be moved to that
- * extra space. The downside of this is that ANYOFL nodes with whichever of
- * the bits get moved would have to have the extra space always allocated.
+ * and access it through the ARG like ANYOF_ONLY_HAS_BITMAP is. This flag is
+ * used by all ANYOF node types, and it could be used to avoid calling the
+ * handler function, as the macro REGINCLASS in regexec.c does now for other
+ * cases.
*
- * One could completely remove ANYOFL_LARGE and make all ANYOFL nodes large.
- * The 30 bits in the extra word would indicate if a posix class should be
- * looked up or not. There isn't an SSC problem as all SSCs are this large
- * anyway, and the SSC could be set to this node type. REGINCLASS would have
- * to be modified so that if the node type were this, it would call
- * reginclass(), as the flag bit that indicates to do this now would be gone.
- * If the 2-bit field is used and moved to the larger structure, this would
- * free up a total of 4 bits. If this were done, we could create an
- * ANYOF_INVERT node-type without a combinatorial explosion, getting us to 5
- * bits. And, keep in mind that ANYOF_MATCHES_ALL_ABOVE_BITMAP is solely for
- * performance, so could be removed. The other performance-related bits are
- * shareable with bits that are required.
+ * Another possibility is based on the fact that ANYOF_MATCHES_POSIXL is
+ * redundant with the node type ANYOFPOSIXL. That flag could be removed, but
+ * at the expense of extra code in regexec.c. The flag has been retained
+ * because it allows us to see if we need to call reginsert, or just use the
+ * bitmap in one test.
*
- * Several flags are not used in synthetic start class (SSC) nodes, so could be
+ * If this is done, an extension would be to make all ANYOFL nodes contain the
+ * extra 32 bits that ANYOFPOSIXL ones do. The posix flags only occupy 30
+ * bits, so the ANYOFL_SHARED_UTF8_LOCALE_fold_HAS_MATCHES_nonfold_REQD flags
+ * and ANYOFL_FOLD could be moved to that extra space, but it would mean extra
+ * instructions, as there are currently places in the code that assume those
+ * two bits are zero.
+ *
+ * All told, 5 bits could be available for other uses if all of the above were
+ * done.
+ *
+ * Some flags are not used in synthetic start class (SSC) nodes, so could be
* shared should new flags be needed for SSCs, like SSC_MATCHES_EMPTY_STRING
* now. */
* time. However under locale, the actual folding varies depending on
* what the locale is at the time of execution, so it has to be deferred until
* then. Only set under /l; never in an SSC */
-#define ANYOF_LOC_FOLD 0x04
-
-/* If set, ANYOF_LOC_FOLD is also set, and there are potential matches that
- * will be valid only if the locale is a UTF-8 one. */
-#define ANYOF_ONLY_UTF8_LOC_FOLD_MATCHES 0x08
-
-/* If set, means to warn if runtime locale isn't a UTF-8 one. Only under /l.
- * If set, none of INVERT, LOC_FOLD, POSIXL,
- * ANYOF_SHARED_d_UPPER_LATIN1_UTF8_STRING_MATCHES_non_d_RUNTIME_USER_PROP can
- * be set. Can be in an SSC */
-#define ANYOF_LOC_REQ_UTF8 0x10
+#define ANYOFL_FOLD 0x04
+
+/* Shared bit set only with ANYOFL and SSC nodes:
+ * If ANYOFL_FOLD is set, this flag indicates there are potential matches
+ * valid only if the locale is a UTF-8 one.
+ * If ANYOFL_FOLD is NOT set, this flag means to warn if the runtime locale
+ * isn't a UTF-8 one (and the generated node assumes a UTF-8 locale).
+ * None of INVERT, POSIXL,
+ * ANYOF_SHARED_d_UPPER_LATIN1_UTF8_STRING_MATCHES_non_d_RUNTIME_USER_PROP
+ * can be set. */
+#define ANYOFL_SHARED_UTF8_LOCALE_fold_HAS_MATCHES_nonfold_REQD 0x08
+
+/* Convenience macros for teasing apart the meanings when reading the above bit
+ * */
+#define ANYOFL_SOME_FOLDS_ONLY_IN_UTF8_LOCALE(flags) \
+ ((flags & ( ANYOFL_FOLD /* Both bits are set */ \
+ |ANYOFL_SHARED_UTF8_LOCALE_fold_HAS_MATCHES_nonfold_REQD)) \
+ == ( ANYOFL_FOLD \
+ |ANYOFL_SHARED_UTF8_LOCALE_fold_HAS_MATCHES_nonfold_REQD))
+
+#define ANYOFL_UTF8_LOCALE_REQD(flags) \
+ ((flags & ( ANYOFL_FOLD /* Only REQD bit is set */ \
+ |ANYOFL_SHARED_UTF8_LOCALE_fold_HAS_MATCHES_nonfold_REQD)) \
+ == ANYOFL_SHARED_UTF8_LOCALE_fold_HAS_MATCHES_nonfold_REQD)
+
+/* Spare: Be sure to change ANYOF_FLAGS_ALL if this gets used 0x10 */
/* If set, the node matches every code point NUM_ANYOF_CODE_POINTS and above.
* Can be in an SSC */
/* Shared bit:
* Under /d it means the ANYOFD node matches more things if the target
* string is encoded in UTF-8; any such things will be non-ASCII,
- * characters that are < 256, and can be accessed via the swash.
+ * characters that are < 256, and can be accessed via the inversion
+ * list.
* When not under /d, it means the ANYOF node contains a user-defined
* property that wasn't yet defined at the time the regex was compiled,
- * and so must be looked up at runtime, by creating a swash
+ * and so must be looked up at runtime, by creating an inversion list.
* (These uses are mutually exclusive because a user-defined property is
* specified by \p{}, and \p{} implies /u which deselects /d). The long macro
* name is to make sure that you are cautioned about its shared nature. Only
* are cautioned about its shared nature */
#define ANYOF_SHARED_d_MATCHES_ALL_NON_UTF8_NON_ASCII_non_d_WARN_SUPER 0x80
-#define ANYOF_FLAGS_ALL (0xff)
+#define ANYOF_FLAGS_ALL (0xff & ~0x10)
-#define ANYOF_LOCALE_FLAGS (ANYOF_LOC_FOLD | ANYOF_MATCHES_POSIXL)
+#define ANYOF_LOCALE_FLAGS (ANYOFL_FOLD | ANYOF_MATCHES_POSIXL)
/* These are the flags that apply to both regular ANYOF nodes and synthetic
* start class nodes during construction of the SSC. During finalization of
* the SSC, other of the flags may get added to it */
-#define ANYOF_COMMON_FLAGS ANYOF_LOC_REQ_UTF8
+#define ANYOF_COMMON_FLAGS 0
/* Character classes for node->classflags of ANYOF */
/* Should be synchronized with a table in regprop() */
#define ANYOF_BIT(c) (1U << ((c) & 7))
-#define ANYOF_POSIXL_SET(p, c) (((regnode_charclass_posixl*) (p))->classflags |= (1U << (c)))
-#define ANYOF_CLASS_SET(p, c) ANYOF_POSIXL_SET((p), (c))
+#define POSIXL_SET(field, c) ((field) |= (1U << (c)))
+#define ANYOF_POSIXL_SET(p, c) POSIXL_SET(((regnode_charclass_posixl*) (p))->classflags, (c))
-#define ANYOF_POSIXL_CLEAR(p, c) (((regnode_charclass_posixl*) (p))->classflags &= ~ (1U <<(c)))
-#define ANYOF_CLASS_CLEAR(p, c) ANYOF_POSIXL_CLEAR((p), (c))
+#define POSIXL_CLEAR(field, c) ((field) &= ~ (1U <<(c)))
+#define ANYOF_POSIXL_CLEAR(p, c) POSIXL_CLEAR(((regnode_charclass_posixl*) (p))->classflags, (c))
-#define ANYOF_POSIXL_TEST(p, c) (((regnode_charclass_posixl*) (p))->classflags & (1U << (c)))
-#define ANYOF_CLASS_TEST(p, c) ANYOF_POSIXL_TEST((p), (c))
+#define POSIXL_TEST(field, c) ((field) & (1U << (c)))
+#define ANYOF_POSIXL_TEST(p, c) POSIXL_TEST(((regnode_charclass_posixl*) (p))->classflags, (c))
-#define ANYOF_POSIXL_ZERO(ret) STMT_START { ((regnode_charclass_posixl*) (ret))->classflags = 0; } STMT_END
-#define ANYOF_CLASS_ZERO(ret) ANYOF_POSIXL_ZERO(ret)
+#define POSIXL_ZERO(field) STMT_START { (field) = 0; } STMT_END
+#define ANYOF_POSIXL_ZERO(ret) POSIXL_ZERO(((regnode_charclass_posixl*) (ret))->classflags)
+
+#define ANYOF_POSIXL_SET_TO_BITMAP(p, bits) \
+ STMT_START { \
+ ((regnode_charclass_posixl*) (p))->classflags = (bits); \
+ } STMT_END
/* Shifts a bit to get, eg. 0x4000_0000, then subtracts 1 to get 0x3FFF_FFFF */
-#define ANYOF_POSIXL_SETALL(ret) STMT_START { ((regnode_charclass_posixl*) (ret))->classflags = ((1U << ((ANYOF_POSIXL_MAX) - 1))) - 1; } STMT_END
+#define ANYOF_POSIXL_SETALL(ret) STMT_START { ((regnode_charclass_posixl*) (ret))->classflags = nBIT_MASK(ANYOF_POSIXL_MAX); } STMT_END
#define ANYOF_CLASS_SETALL(ret) ANYOF_POSIXL_SETALL(ret)
#define ANYOF_POSIXL_TEST_ANY_SET(p) \
cBOOL(((regnode_ssc*)(p))->classflags)
#define ANYOF_POSIXL_SSC_TEST_ALL_SET(p) /* Are all bits set? */ \
(((regnode_ssc*) (p))->classflags \
- == ((1U << ((ANYOF_POSIXL_MAX) - 1))) - 1)
+ == nBIT_MASK(ANYOF_POSIXL_MAX))
#define ANYOF_POSIXL_TEST_ALL_SET(p) \
- ((ANYOF_FLAGS(p) & ANYOF_MATCHES_POSIXL) \
+ ((ANYOF_FLAGS(p) & ANYOF_MATCHES_POSIXL) \
&& ((regnode_charclass_posixl*) (p))->classflags \
- == ((1U << ((ANYOF_POSIXL_MAX) - 1))) - 1)
+ == nBIT_MASK(ANYOF_POSIXL_MAX))
#define ANYOF_POSIXL_OR(source, dest) STMT_START { (dest)->classflags |= (source)->classflags ; } STMT_END
#define ANYOF_CLASS_OR(source, dest) ANYOF_POSIXL_OR((source), (dest))
#define ANYOF_POSIXL_AND(source, dest) STMT_START { (dest)->classflags &= (source)->classflags ; } STMT_END
-#define ANYOF_BITMAP_ZERO(ret) Zero(((struct regnode_charclass*)(ret))->bitmap, ANYOF_BITMAP_SIZE, char)
-#define ANYOF_BITMAP(p) (((struct regnode_charclass*)(p))->bitmap)
-#define ANYOF_BITMAP_BYTE(p, c) (ANYOF_BITMAP(p)[(((U8)(c)) >> 3) & 31])
+#define ANYOF_BITMAP_ZERO(ret) Zero(((regnode_charclass*)(ret))->bitmap, ANYOF_BITMAP_SIZE, char)
+#define ANYOF_BITMAP(p) ((regnode_charclass*)(p))->bitmap
+#define ANYOF_BITMAP_BYTE(p, c) BITMAP_BYTE(ANYOF_BITMAP(p), c)
#define ANYOF_BITMAP_SET(p, c) (ANYOF_BITMAP_BYTE(p, c) |= ANYOF_BIT(c))
#define ANYOF_BITMAP_CLEAR(p,c) (ANYOF_BITMAP_BYTE(p, c) &= ~ANYOF_BIT(c))
#define ANYOF_BITMAP_TEST(p, c) cBOOL(ANYOF_BITMAP_BYTE(p, c) & ANYOF_BIT(c))
#define ANYOF_BITMAP_CLEARALL(p) \
Zero (ANYOF_BITMAP(p), ANYOF_BITMAP_SIZE)
-#define ANYOF_SKIP EXTRA_SIZE(struct regnode_charclass)
-#define ANYOF_POSIXL_SKIP EXTRA_SIZE(regnode_charclass_posixl)
-
/*
* Utility definitions.
*/
# define UCHARAT(p) ((int)*(p)&CHARMASK)
#endif
+/* Number of regnode equivalents that 'guy' occupies beyond the size of the
+ * smallest regnode. */
#define EXTRA_SIZE(guy) ((sizeof(guy)-1)/sizeof(struct regnode))
#define REG_ZERO_LEN_SEEN 0x00000001
#define REG_CUTGROUP_SEEN 0x00000100
#define REG_RUN_ON_COMMENT_SEEN 0x00000200
#define REG_UNFOLDED_MULTI_SEEN 0x00000400
-#define REG_GOSTART_SEEN 0x00000800
+/* spare */
#define REG_UNBOUNDED_QUANTIFIER_SEEN 0x00001000
* l - start op for literal (?{EVAL}) item
* L - start op for literal (?{EVAL}) item, with separate CV (qr//)
* r - pointer to an embedded code-containing qr, e.g. /ab$qr/
- * s - swash for Unicode-style character class, and the multicharacter
- * strings resulting from casefolding the single-character entries
- * in the character class
+ * s - inversion list for Unicode-style character class, and the
+ * multicharacter strings resulting from casefolding the single-character
+ * entries in the character class
* t - trie struct
* u - trie struct's widecharmap (a HV, so can't share, must dup)
* also used for revcharmap and words under DEBUGGING
three different sets... */
#define TRIE_BITMAP(p) (((reg_trie_data *)(p))->bitmap)
-#define TRIE_BITMAP_BYTE(p, c) (TRIE_BITMAP(p)[(((U8)(c)) >> 3) & 31])
+#define TRIE_BITMAP_BYTE(p, c) BITMAP_BYTE(TRIE_BITMAP(p), c)
#define TRIE_BITMAP_SET(p, c) (TRIE_BITMAP_BYTE(p, c) |= ANYOF_BIT((U8)c))
#define TRIE_BITMAP_CLEAR(p,c) (TRIE_BITMAP_BYTE(p, c) &= ~ANYOF_BIT((U8)c))
#define TRIE_BITMAP_TEST(p, c) (TRIE_BITMAP_BYTE(p, c) & ANYOF_BIT((U8)c))
#define IS_TRIE_AC(op) ((op)>=AHOCORASICK)
-#define BITMAP_BYTE(p, c) (((U8*)p)[(((U8)(c)) >> 3) & 31])
+#define BITMAP_BYTE(p, c) (( (U8*) p) [ ( ( (UV) (c)) >> 3) ] )
#define BITMAP_TEST(p, c) (BITMAP_BYTE(p, c) & ANYOF_BIT((U8)c))
/* these defines assume uniquecharcount is the correct variable, and state may be evaluated twice */
#define RE_TRIE_MAXBUF_NAME "\022E_TRIE_MAXBUF"
#define RE_DEBUG_FLAGS "\022E_DEBUG_FLAGS"
+#define RE_COMPILE_RECURSION_INIT 1000
+#define RE_COMPILE_RECURSION_LIMIT "\022E_COMPILE_RECURSION_LIMIT"
+
/*
RE_DEBUG_FLAGS is used to control what debug output is emitted
#define RE_DEBUG_EXECUTE_TRIE 0x000400
/* Extra */
-#define RE_DEBUG_EXTRA_MASK 0xFF0000
-#define RE_DEBUG_EXTRA_TRIE 0x010000
-#define RE_DEBUG_EXTRA_OFFSETS 0x020000
-#define RE_DEBUG_EXTRA_OFFDEBUG 0x040000
-#define RE_DEBUG_EXTRA_STATE 0x080000
-#define RE_DEBUG_EXTRA_OPTIMISE 0x100000
-#define RE_DEBUG_EXTRA_BUFFERS 0x400000
-#define RE_DEBUG_EXTRA_GPOS 0x800000
+#define RE_DEBUG_EXTRA_MASK 0x3FF0000
+#define RE_DEBUG_EXTRA_TRIE 0x0010000
+#define RE_DEBUG_EXTRA_OFFSETS 0x0020000
+#define RE_DEBUG_EXTRA_OFFDEBUG 0x0040000
+#define RE_DEBUG_EXTRA_STATE 0x0080000
+#define RE_DEBUG_EXTRA_OPTIMISE 0x0100000
+#define RE_DEBUG_EXTRA_BUFFERS 0x0400000
+#define RE_DEBUG_EXTRA_GPOS 0x0800000
+#define RE_DEBUG_EXTRA_DUMP_PRE_OPTIMIZE 0x1000000
+#define RE_DEBUG_EXTRA_WILDCARD 0x2000000
/* combined */
-#define RE_DEBUG_EXTRA_STACK 0x280000
+#define RE_DEBUG_EXTRA_STACK 0x0280000
-#define RE_DEBUG_FLAG(x) (re_debug_flags & x)
+#define RE_DEBUG_FLAG(x) (re_debug_flags & (x))
/* Compile */
#define DEBUG_COMPILE_r(x) DEBUG_r( \
- if (re_debug_flags & RE_DEBUG_COMPILE_MASK) x )
+ if (DEBUG_v_TEST || RE_DEBUG_FLAG(RE_DEBUG_COMPILE_MASK)) x )
#define DEBUG_PARSE_r(x) DEBUG_r( \
- if (re_debug_flags & RE_DEBUG_COMPILE_PARSE) x )
+ if (DEBUG_v_TEST || RE_DEBUG_FLAG(RE_DEBUG_COMPILE_PARSE)) x )
#define DEBUG_OPTIMISE_r(x) DEBUG_r( \
- if (re_debug_flags & RE_DEBUG_COMPILE_OPTIMISE) x )
-#define DEBUG_PARSE_r(x) DEBUG_r( \
- if (re_debug_flags & RE_DEBUG_COMPILE_PARSE) x )
+ if (DEBUG_v_TEST || RE_DEBUG_FLAG(RE_DEBUG_COMPILE_OPTIMISE)) x )
#define DEBUG_DUMP_r(x) DEBUG_r( \
- if (re_debug_flags & RE_DEBUG_COMPILE_DUMP) x )
+ if (DEBUG_v_TEST || RE_DEBUG_FLAG(RE_DEBUG_COMPILE_DUMP)) x )
#define DEBUG_TRIE_COMPILE_r(x) DEBUG_r( \
- if (re_debug_flags & RE_DEBUG_COMPILE_TRIE) x )
+ if (DEBUG_v_TEST || RE_DEBUG_FLAG(RE_DEBUG_COMPILE_TRIE)) x )
#define DEBUG_FLAGS_r(x) DEBUG_r( \
- if (re_debug_flags & RE_DEBUG_COMPILE_FLAGS) x )
+ if (DEBUG_v_TEST || RE_DEBUG_FLAG(RE_DEBUG_COMPILE_FLAGS)) x )
#define DEBUG_TEST_r(x) DEBUG_r( \
- if (re_debug_flags & RE_DEBUG_COMPILE_TEST) x )
+ if (DEBUG_v_TEST || RE_DEBUG_FLAG(RE_DEBUG_COMPILE_TEST)) x )
/* Execute */
#define DEBUG_EXECUTE_r(x) DEBUG_r( \
- if (re_debug_flags & RE_DEBUG_EXECUTE_MASK) x )
+ if (DEBUG_v_TEST || RE_DEBUG_FLAG(RE_DEBUG_EXECUTE_MASK)) x )
#define DEBUG_INTUIT_r(x) DEBUG_r( \
- if (re_debug_flags & RE_DEBUG_EXECUTE_INTUIT) x )
+ if (DEBUG_v_TEST || RE_DEBUG_FLAG(RE_DEBUG_EXECUTE_INTUIT)) x )
#define DEBUG_MATCH_r(x) DEBUG_r( \
- if (re_debug_flags & RE_DEBUG_EXECUTE_MATCH) x )
+ if (DEBUG_v_TEST || RE_DEBUG_FLAG(RE_DEBUG_EXECUTE_MATCH)) x )
#define DEBUG_TRIE_EXECUTE_r(x) DEBUG_r( \
- if (re_debug_flags & RE_DEBUG_EXECUTE_TRIE) x )
+ if (DEBUG_v_TEST || RE_DEBUG_FLAG(RE_DEBUG_EXECUTE_TRIE)) x )
/* Extra */
#define DEBUG_EXTRA_r(x) DEBUG_r( \
- if (re_debug_flags & RE_DEBUG_EXTRA_MASK) x )
+ if (DEBUG_v_TEST || RE_DEBUG_FLAG(RE_DEBUG_EXTRA_MASK)) x )
#define DEBUG_OFFSETS_r(x) DEBUG_r( \
- if (re_debug_flags & RE_DEBUG_EXTRA_OFFSETS) x )
+ if (DEBUG_v_TEST || RE_DEBUG_FLAG(RE_DEBUG_EXTRA_OFFSETS)) x )
#define DEBUG_STATE_r(x) DEBUG_r( \
- if (re_debug_flags & RE_DEBUG_EXTRA_STATE) x )
+ if (DEBUG_v_TEST || RE_DEBUG_FLAG(RE_DEBUG_EXTRA_STATE)) x )
#define DEBUG_STACK_r(x) DEBUG_r( \
- if (re_debug_flags & RE_DEBUG_EXTRA_STACK) x )
+ if (DEBUG_v_TEST || RE_DEBUG_FLAG(RE_DEBUG_EXTRA_STACK)) x )
#define DEBUG_BUFFERS_r(x) DEBUG_r( \
- if (re_debug_flags & RE_DEBUG_EXTRA_BUFFERS) x )
+ if (DEBUG_v_TEST || RE_DEBUG_FLAG(RE_DEBUG_EXTRA_BUFFERS)) x )
#define DEBUG_OPTIMISE_MORE_r(x) DEBUG_r( \
- if ((RE_DEBUG_EXTRA_OPTIMISE|RE_DEBUG_COMPILE_OPTIMISE) == \
- (re_debug_flags & (RE_DEBUG_EXTRA_OPTIMISE|RE_DEBUG_COMPILE_OPTIMISE)) ) x )
+ if (DEBUG_v_TEST || ((RE_DEBUG_EXTRA_OPTIMISE|RE_DEBUG_COMPILE_OPTIMISE) == \
+ RE_DEBUG_FLAG(RE_DEBUG_EXTRA_OPTIMISE|RE_DEBUG_COMPILE_OPTIMISE))) x )
#define MJD_OFFSET_DEBUG(x) DEBUG_r( \
- if (re_debug_flags & RE_DEBUG_EXTRA_OFFDEBUG) \
+ if (DEBUG_v_TEST || RE_DEBUG_FLAG(RE_DEBUG_EXTRA_OFFDEBUG)) \
Perl_warn_nocontext x )
#define DEBUG_TRIE_COMPILE_MORE_r(x) DEBUG_TRIE_COMPILE_r( \
- if (re_debug_flags & RE_DEBUG_EXTRA_TRIE) x )
+ if (DEBUG_v_TEST || RE_DEBUG_FLAG(RE_DEBUG_EXTRA_TRIE)) x )
#define DEBUG_TRIE_EXECUTE_MORE_r(x) DEBUG_TRIE_EXECUTE_r( \
- if (re_debug_flags & RE_DEBUG_EXTRA_TRIE) x )
+ if (DEBUG_v_TEST || RE_DEBUG_FLAG(RE_DEBUG_EXTRA_TRIE)) x )
#define DEBUG_TRIE_r(x) DEBUG_r( \
- if (re_debug_flags & (RE_DEBUG_COMPILE_TRIE \
+ if (DEBUG_v_TEST || RE_DEBUG_FLAG(RE_DEBUG_COMPILE_TRIE \
| RE_DEBUG_EXECUTE_TRIE )) x )
#define DEBUG_GPOS_r(x) DEBUG_r( \
- if (re_debug_flags & RE_DEBUG_EXTRA_GPOS) x )
+ if (DEBUG_v_TEST || RE_DEBUG_FLAG(RE_DEBUG_EXTRA_GPOS)) x )
+
+#define DEBUG_DUMP_PRE_OPTIMIZE_r(x) DEBUG_r( \
+ if (DEBUG_v_TEST || RE_DEBUG_FLAG(RE_DEBUG_EXTRA_DUMP_PRE_OPTIMIZE)) x )
/* initialization */
-/* get_sv() can return NULL during global destruction. */
-#define GET_RE_DEBUG_FLAGS DEBUG_r({ \
- SV * re_debug_flags_sv = NULL; \
- re_debug_flags_sv = get_sv(RE_DEBUG_FLAGS, 1); \
- if (re_debug_flags_sv) { \
- if (!SvIOK(re_debug_flags_sv)) \
- sv_setuv(re_debug_flags_sv, RE_DEBUG_COMPILE_DUMP | RE_DEBUG_EXECUTE_MASK ); \
- re_debug_flags=SvIV(re_debug_flags_sv); \
- }\
-})
+/* Get the debug flags for code not in regcomp.c nor regexec.c. This doesn't
+ * initialize the variable if it isn't already there, instead it just assumes
+ * the flags are 0 */
+#define DECLARE_AND_GET_RE_DEBUG_FLAGS_NON_REGEX \
+ volatile IV re_debug_flags = 0; PERL_UNUSED_VAR(re_debug_flags); \
+ STMT_START { \
+ SV * re_debug_flags_sv = NULL; \
+ /* get_sv() can return NULL during global destruction. */ \
+ re_debug_flags_sv = PL_curcop ? get_sv(RE_DEBUG_FLAGS, GV_ADD) : NULL; \
+ if (re_debug_flags_sv && SvIOK(re_debug_flags_sv)) \
+ re_debug_flags=SvIV(re_debug_flags_sv); \
+ } STMT_END
-#ifdef DEBUGGING
-#define GET_RE_DEBUG_FLAGS_DECL VOL IV re_debug_flags = 0; \
- PERL_UNUSED_VAR(re_debug_flags); GET_RE_DEBUG_FLAGS;
+#ifdef DEBUGGING
-#define RE_PV_COLOR_DECL(rpv,rlen,isuni,dsv,pv,l,m,c1,c2) \
- const char * const rpv = \
- pv_pretty((dsv), (pv), (l), (m), \
- PL_colors[(c1)],PL_colors[(c2)], \
+/* For use in regcomp.c and regexec.c, Get the debug flags, and initialize to
+ * the defaults if not done already */
+#define DECLARE_AND_GET_RE_DEBUG_FLAGS \
+ volatile IV re_debug_flags = 0; PERL_UNUSED_VAR(re_debug_flags); \
+ STMT_START { \
+ SV * re_debug_flags_sv = NULL; \
+ /* get_sv() can return NULL during global destruction. */ \
+ re_debug_flags_sv = PL_curcop ? get_sv(RE_DEBUG_FLAGS, GV_ADD) : NULL; \
+ if (re_debug_flags_sv) { \
+ if (!SvIOK(re_debug_flags_sv)) /* If doesnt exist set to default */\
+ sv_setuv(re_debug_flags_sv, \
+ /* These defaults should be kept in sync with re.pm */ \
+ RE_DEBUG_COMPILE_DUMP | RE_DEBUG_EXECUTE_MASK ); \
+ re_debug_flags=SvIV(re_debug_flags_sv); \
+ } \
+ } STMT_END
+
+#define isDEBUG_WILDCARD (DEBUG_v_TEST || RE_DEBUG_FLAG(RE_DEBUG_EXTRA_WILDCARD))
+
+#define RE_PV_COLOR_DECL(rpv,rlen,isuni,dsv,pv,l,m,c1,c2) \
+ const char * const rpv = \
+ pv_pretty((dsv), (pv), (l), (m), \
+ PL_colors[(c1)],PL_colors[(c2)], \
PERL_PV_ESCAPE_RE|PERL_PV_ESCAPE_NONASCII |((isuni) ? PERL_PV_ESCAPE_UNI : 0) ); \
const int rlen = SvCUR(dsv)
-#define RE_SV_ESCAPE(rpv,isuni,dsv,sv,m) \
- const char * const rpv = \
- pv_pretty((dsv), (SvPV_nolen_const(sv)), (SvCUR(sv)), (m), \
- PL_colors[(c1)],PL_colors[(c2)], \
+/* This is currently unsed in the core */
+#define RE_SV_ESCAPE(rpv,isuni,dsv,sv,m) \
+ const char * const rpv = \
+ pv_pretty((dsv), (SvPV_nolen_const(sv)), (SvCUR(sv)), (m), \
+ PL_colors[(c1)],PL_colors[(c2)], \
PERL_PV_ESCAPE_RE|PERL_PV_ESCAPE_NONASCII |((isuni) ? PERL_PV_ESCAPE_UNI : 0) )
-#define RE_PV_QUOTED_DECL(rpv,isuni,dsv,pv,l,m) \
- const char * const rpv = \
- pv_pretty((dsv), (pv), (l), (m), \
- PL_colors[0], PL_colors[1], \
+#define RE_PV_QUOTED_DECL(rpv,isuni,dsv,pv,l,m) \
+ const char * const rpv = \
+ pv_pretty((dsv), (pv), (l), (m), \
+ PL_colors[0], PL_colors[1], \
( PERL_PV_PRETTY_QUOTE | PERL_PV_ESCAPE_RE | PERL_PV_ESCAPE_NONASCII | PERL_PV_PRETTY_ELLIPSES | \
((isuni) ? PERL_PV_ESCAPE_UNI : 0)) \
)
#else /* if not DEBUGGING */
-#define GET_RE_DEBUG_FLAGS_DECL
-#define RE_PV_COLOR_DECL(rpv,rlen,isuni,dsv,pv,l,m,c1,c2)
+#define DECLARE_AND_GET_RE_DEBUG_FLAGS dNOOP
+#define RE_PV_COLOR_DECL(rpv,rlen,isuni,dsv,pv,l,m,c1,c2) dNOOP
#define RE_SV_ESCAPE(rpv,isuni,dsv,sv,m)
-#define RE_PV_QUOTED_DECL(rpv,isuni,dsv,pv,l,m)
+#define RE_PV_QUOTED_DECL(rpv,isuni,dsv,pv,l,m) dNOOP
#define RE_SV_DUMPLEN(ItEm)
#define RE_SV_TAIL(ItEm)
+#define isDEBUG_WILDCARD 0
#endif /* DEBUG RELATED DEFINES */
+#define FIRST_NON_ASCII_DECIMAL_DIGIT 0x660 /* ARABIC_INDIC_DIGIT_ZERO */
+
typedef enum {
TRADITIONAL_BOUND = _CC_WORDCHAR,
GCB_BOUND,
+ LB_BOUND,
SB_BOUND,
WB_BOUND
} bound_type;
+/* This unpacks the FLAGS field of ANYOF[HR]x nodes. The value it contains
+ * gives the strict lower bound for the UTF-8 start byte of any code point
+ * matchable by the node, and a loose upper bound as well.
+ *
+ * The low bound is stored in the upper 6 bits, plus 0xC0.
+ * The loose upper bound is determined from the lowest 2 bits and the low bound
+ * (called x) as follows:
+ *
+ * 11 The upper limit of the range can be as much as (EF - x) / 8
+ * 10 The upper limit of the range can be as much as (EF - x) / 4
+ * 01 The upper limit of the range can be as much as (EF - x) / 2
+ * 00 The upper limit of the range can be as much as EF
+ *
+ * For motivation of this design, see commit message in
+ * 3146c00a633e9cbed741e10146662fbcedfdb8d3 */
+#ifdef EBCDIC
+# define MAX_ANYOF_HRx_BYTE 0xF4
+#else
+# define MAX_ANYOF_HRx_BYTE 0xEF
+#endif
+#define LOWEST_ANYOF_HRx_BYTE(b) (((b) >> 2) + 0xC0)
+#define HIGHEST_ANYOF_HRx_BYTE(b) \
+ (LOWEST_ANYOF_HRx_BYTE(b) \
+ + ((MAX_ANYOF_HRx_BYTE - LOWEST_ANYOF_HRx_BYTE(b)) >> ((b) & 3)))
+
+#endif /* PERL_REGCOMP_H_ */
+
/*
* ex: set ts=8 sts=4 sw=4 et:
*/
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