/* regcomp.h
+ *
+ * Copyright (C) 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
+ * 2000, 2001, 2002, 2003, by Larry Wall and others
+ *
+ * You may distribute under the terms of either the GNU General Public
+ * License or the Artistic License, as specified in the README file.
+ *
*/
typedef OP OP_4tree; /* Will be redefined later. */
*/
struct regnode_string {
- U8 flags;
+ U8 str_len;
U8 type;
U16 next_off;
- U8 string[1];
+ char string[1];
};
struct regnode_1 {
U16 arg2;
};
+#define ANYOF_BITMAP_SIZE 32 /* 256 b/(8 b/B) */
+#define ANYOF_CLASSBITMAP_SIZE 4 /* up to 32 (8*4) named classes */
+
+struct regnode_charclass {
+ U8 flags;
+ U8 type;
+ U16 next_off;
+ U32 arg1;
+ char bitmap[ANYOF_BITMAP_SIZE]; /* only compile-time */
+};
+
+struct regnode_charclass_class { /* has [[:blah:]] classes */
+ U8 flags; /* should have ANYOF_CLASS here */
+ U8 type;
+ U16 next_off;
+ U32 arg1;
+ char bitmap[ANYOF_BITMAP_SIZE]; /* both compile-time */
+ char classflags[ANYOF_CLASSBITMAP_SIZE]; /* and run-time */
+};
+
/* XXX fix this description.
Impose a limit of REG_INFTY on various pattern matching operations
to limit stack growth and to avoid "infinite" recursions.
#define ARG_VALUE(arg) (arg)
#define ARG__SET(arg,val) ((arg) = (val))
+#undef ARG
+#undef ARG1
+#undef ARG2
+
#define ARG(p) ARG_VALUE(ARG_LOC(p))
#define ARG1(p) ARG_VALUE(ARG1_LOC(p))
#define ARG2(p) ARG_VALUE(ARG2_LOC(p))
#define ARG1_SET(p, val) ARG__SET(ARG1_LOC(p), (val))
#define ARG2_SET(p, val) ARG__SET(ARG2_LOC(p), (val))
+#undef NEXT_OFF
+#undef NODE_ALIGN
+
#ifndef lint
# define NEXT_OFF(p) ((p)->next_off)
# define NODE_ALIGN(node)
#define SIZE_ALIGN NODE_ALIGN
+#undef OP
+#undef OPERAND
+#undef MASK
+#undef STRING
+
#define OP(p) ((p)->type)
#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)
+
+#undef NODE_ALIGN
+#undef ARG_LOC
+#undef NEXTOPER
+#undef PREVOPER
+
#define NODE_ALIGN(node)
#define ARG_LOC(p) (((struct regnode_1 *)p)->arg1)
#define ARG1_LOC(p) (((struct regnode_2 *)p)->arg1)
#define REG_MAGIC 0234
-#define SIZE_ONLY (PL_regcode == &PL_regdummy)
-
-/* Flags for first parameter byte of ANYOF */
-#define ANYOF_INVERT 0x40
-#define ANYOF_FOLD 0x20
-#define ANYOF_LOCALE 0x10
-#define ANYOF_ISA 0x0F
-#define ANYOF_ALNUML 0x08
-#define ANYOF_NALNUML 0x04
-#define ANYOF_SPACEL 0x02
-#define ANYOF_NSPACEL 0x01
-
-/* Utility macros for bitmap of ANYOF */
-#define ANYOF_BYTE(p,c) (p)[1 + (((c) >> 3) & 31)]
-#define ANYOF_BIT(c) (1 << ((c) & 7))
-#define ANYOF_SET(p,c) (ANYOF_BYTE(p,c) |= ANYOF_BIT(c))
-#define ANYOF_CLEAR(p,c) (ANYOF_BYTE(p,c) &= ~ANYOF_BIT(c))
-#define ANYOF_TEST(p,c) (ANYOF_BYTE(p,c) & ANYOF_BIT(c))
-
-#define ANY_SKIP ((33 - 1)/sizeof(regnode) + 1)
+#define SIZE_ONLY (RExC_emit == &PL_regdummy)
+
+/* Flags for node->flags of ANYOF */
+
+#define ANYOF_CLASS 0x08 /* has [[:blah:]] classes */
+#define ANYOF_INVERT 0x04
+#define ANYOF_FOLD 0x02
+#define ANYOF_LOCALE 0x01
+
+/* Used for regstclass only */
+#define ANYOF_EOS 0x10 /* Can match an empty string too */
+
+/* There is a character or a range past 0xff */
+#define ANYOF_UNICODE 0x20
+#define ANYOF_UNICODE_ALL 0x40 /* Can match any char past 0xff */
+
+/* size of node is large (includes class pointer) */
+#define ANYOF_LARGE 0x80
+
+/* Are there any runtime flags on in this node? */
+#define ANYOF_RUNTIME(s) (ANYOF_FLAGS(s) & 0x0f)
+
+#define ANYOF_FLAGS_ALL 0xff
+
+/* Character classes for node->classflags of ANYOF */
+/* Should be synchronized with a table in regprop() */
+/* 2n should pair with 2n+1 */
+
+#define ANYOF_ALNUM 0 /* \w, PL_utf8_alnum, utf8::IsWord, ALNUM */
+#define ANYOF_NALNUM 1
+#define ANYOF_SPACE 2 /* \s */
+#define ANYOF_NSPACE 3
+#define ANYOF_DIGIT 4
+#define ANYOF_NDIGIT 5
+#define ANYOF_ALNUMC 6 /* isalnum(3), utf8::IsAlnum, ALNUMC */
+#define ANYOF_NALNUMC 7
+#define ANYOF_ALPHA 8
+#define ANYOF_NALPHA 9
+#define ANYOF_ASCII 10
+#define ANYOF_NASCII 11
+#define ANYOF_CNTRL 12
+#define ANYOF_NCNTRL 13
+#define ANYOF_GRAPH 14
+#define ANYOF_NGRAPH 15
+#define ANYOF_LOWER 16
+#define ANYOF_NLOWER 17
+#define ANYOF_PRINT 18
+#define ANYOF_NPRINT 19
+#define ANYOF_PUNCT 20
+#define ANYOF_NPUNCT 21
+#define ANYOF_UPPER 22
+#define ANYOF_NUPPER 23
+#define ANYOF_XDIGIT 24
+#define ANYOF_NXDIGIT 25
+#define ANYOF_PSXSPC 26 /* POSIX space: \s plus the vertical tab */
+#define ANYOF_NPSXSPC 27
+#define ANYOF_BLANK 28 /* GNU extension: space and tab: non-vertical space */
+#define ANYOF_NBLANK 29
+
+#define ANYOF_MAX 32
+
+/* Backward source code compatibility. */
+
+#define ANYOF_ALNUML ANYOF_ALNUM
+#define ANYOF_NALNUML ANYOF_NALNUM
+#define ANYOF_SPACEL ANYOF_SPACE
+#define ANYOF_NSPACEL ANYOF_NSPACE
+
+/* Utility macros for the bitmap and classes of ANYOF */
+
+#define ANYOF_SIZE (sizeof(struct regnode_charclass))
+#define ANYOF_CLASS_SIZE (sizeof(struct regnode_charclass_class))
+
+#define ANYOF_FLAGS(p) ((p)->flags)
+
+#define ANYOF_BIT(c) (1 << ((c) & 7))
+
+#define ANYOF_CLASS_BYTE(p, c) (((struct regnode_charclass_class*)(p))->classflags[((c) >> 3) & 3])
+#define ANYOF_CLASS_SET(p, c) (ANYOF_CLASS_BYTE(p, c) |= ANYOF_BIT(c))
+#define ANYOF_CLASS_CLEAR(p, c) (ANYOF_CLASS_BYTE(p, c) &= ~ANYOF_BIT(c))
+#define ANYOF_CLASS_TEST(p, c) (ANYOF_CLASS_BYTE(p, c) & ANYOF_BIT(c))
+
+#define ANYOF_CLASS_ZERO(ret) Zero(((struct regnode_charclass_class*)(ret))->classflags, ANYOF_CLASSBITMAP_SIZE, char)
+#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)[((c) >> 3) & 31])
+#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) (ANYOF_BITMAP_BYTE(p, c) & ANYOF_BIT(c))
+
+#define ANYOF_BITMAP_SETALL(p) \
+ memset (ANYOF_BITMAP(p), 255, ANYOF_BITMAP_SIZE)
+#define ANYOF_BITMAP_CLEARALL(p) \
+ Zero (ANYOF_BITMAP(p), ANYOF_BITMAP_SIZE)
+/* Check that all 256 bits are all set. Used in S_cl_is_anything() */
+#define ANYOF_BITMAP_TESTALLSET(p) \
+ memEQ (ANYOF_BITMAP(p), "\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377", ANYOF_BITMAP_SIZE)
+
+#define ANYOF_SKIP ((ANYOF_SIZE - 1)/sizeof(regnode))
+#define ANYOF_CLASS_SKIP ((ANYOF_CLASS_SIZE - 1)/sizeof(regnode))
+#define ANYOF_CLASS_ADD_SKIP (ANYOF_CLASS_SKIP - ANYOF_SKIP)
/*
* Utility definitions.
*/
#ifndef lint
#ifndef CHARMASK
-#define UCHARAT(p) ((int)*(unsigned char *)(p))
+#define UCHARAT(p) ((int)*(U8*)(p))
#else
#define UCHARAT(p) ((int)*(p)&CHARMASK)
#endif
#define UCHARAT(p) PL_regdummy
#endif /* lint */
-#define FAIL(m) \
- STMT_START { \
- if (!SIZE_ONLY) \
- SAVEDESTRUCTOR(S_clear_re,(void*)PL_regcomp_rx); \
- Perl_croak(aTHX_ "/%.127s/: %s", PL_regprecomp,m); \
- } STMT_END
-
-#define FAIL2(pat,m) \
- STMT_START { \
- if (!SIZE_ONLY) \
- SAVEDESTRUCTOR(S_clear_re,(void*)PL_regcomp_rx); \
- S_re_croak2(aTHX_ "/%.127s/: ",pat,PL_regprecomp,m); \
- } STMT_END
-
#define EXTRA_SIZE(guy) ((sizeof(guy)-1)/sizeof(struct regnode))
-#define REG_SEEN_ZERO_LEN 1
-#define REG_SEEN_LOOKBEHIND 2
-#define REG_SEEN_GPOS 4
-#define REG_SEEN_EVAL 8
+#define REG_SEEN_ZERO_LEN 1
+#define REG_SEEN_LOOKBEHIND 2
+#define REG_SEEN_GPOS 4
+#define REG_SEEN_EVAL 8
+#define REG_SEEN_CANY 16
+#define REG_SEEN_SANY REG_SEEN_CANY /* src bckwrd cmpt */
START_EXTERN_C
#include "regnodes.h"
-/* The following have no fixed length. char* since we do strchr on it. */
+/* The following have no fixed length. U8 so we can do strchr() on it. */
#ifndef DOINIT
-EXTCONST char PL_varies[];
+EXTCONST U8 PL_varies[];
#else
-EXTCONST char PL_varies[] = {
+EXTCONST U8 PL_varies[] = {
BRANCH, BACK, STAR, PLUS, CURLY, CURLYX, REF, REFF, REFFL,
WHILEM, CURLYM, CURLYN, BRANCHJ, IFTHEN, SUSPEND, CLUMP, 0
};
#endif
-/* The following always have a length of 1. char* since we do strchr on it. */
-/* (Note that lenght 1 means "one character" under UTF8, not "one octet".) */
+/* The following always have a length of 1. U8 we can do strchr() on it. */
+/* (Note that length 1 means "one character" under UTF8, not "one octet".) */
#ifndef DOINIT
-EXTCONST char PL_simple[];
+EXTCONST U8 PL_simple[];
#else
-EXTCONST char PL_simple[] = {
- REG_ANY, ANYUTF8, SANY, SANYUTF8, ANYOF, ANYOFUTF8,
- ALNUM, ALNUMUTF8, ALNUML, ALNUMLUTF8,
- NALNUM, NALNUMUTF8, NALNUML, NALNUMLUTF8,
- SPACE, SPACEUTF8, SPACEL, SPACELUTF8,
- NSPACE, NSPACEUTF8, NSPACEL, NSPACELUTF8,
- DIGIT, DIGITUTF8, NDIGIT, NDIGITUTF8, 0
+EXTCONST U8 PL_simple[] = {
+ REG_ANY, SANY, CANY,
+ ANYOF,
+ ALNUM, ALNUML,
+ NALNUM, NALNUML,
+ SPACE, SPACEL,
+ NSPACE, NSPACEL,
+ DIGIT, NDIGIT,
+ 0
};
#endif
END_EXTERN_C
+
+typedef struct re_scream_pos_data_s
+{
+ char **scream_olds; /* match pos */
+ I32 *scream_pos; /* Internal iterator of scream. */
+} re_scream_pos_data;
+
+/* .what is a character array with one character for each member of .data
+ * The character describes the function of the corresponding .data item:
+ * f - start-class data for regstclass optimization
+ * n - Root of op tree for (?{EVAL}) item
+ * o - Start op for (?{EVAL}) item
+ * p - Pad for (?{EVAL} item
+ * s - swash for unicode-style character class, and the multicharacter
+ * strings resulting from casefolding the single-character entries
+ * in the character class
+ * 20010712 mjd@plover.com
+ * (Remember to update re_dup() and pregfree() if you add any items.)
+ */
+struct reg_data {
+ U32 count;
+ U8 *what;
+ void* data[1];
+};
+
+struct reg_substr_datum {
+ I32 min_offset;
+ I32 max_offset;
+ SV *substr; /* non-utf8 variant */
+ SV *utf8_substr; /* utf8 variant */
+};
+
+struct reg_substr_data {
+ struct reg_substr_datum data[3]; /* Actual array */
+};
+
+#define anchored_substr substrs->data[0].substr
+#define anchored_utf8 substrs->data[0].utf8_substr
+#define anchored_offset substrs->data[0].min_offset
+#define float_substr substrs->data[1].substr
+#define float_utf8 substrs->data[1].utf8_substr
+#define float_min_offset substrs->data[1].min_offset
+#define float_max_offset substrs->data[1].max_offset
+#define check_substr substrs->data[2].substr
+#define check_utf8 substrs->data[2].utf8_substr
+#define check_offset_min substrs->data[2].min_offset
+#define check_offset_max substrs->data[2].max_offset
https://perl5.git.perl.org / perl5.git / blobdiff