| // |
| // Copyright (C) 2002 International Business Machines Corporation |
| // and others. All rights reserved. |
| // |
| // file: regeximp.h |
| // |
| // ICU Regular Expressions, |
| // Definitions of constant values used in the compiled form of |
| // a regular expression pattern. |
| // |
| |
| #ifndef _REGEXIMP_H |
| #define _REGEXIMP_H |
| |
| |
| // |
| // debugging support. Enable one or more of the #defines immediately following |
| // |
| //#define REGEX_SCAN_DEBUG |
| //#define REGEX_DUMP_DEBUG |
| //#define REGEX_RUN_DEBUG |
| // End of #defines inteded to be directly set. |
| |
| #ifdef REGEX_SCAN_DEBUG |
| #define REGEX_SCAN_DEBUG_PRINTF printf |
| #else |
| #define REGEX_SCAN_DEBUG_PRINTF |
| #endif |
| |
| #ifdef REGEX_DUMP_DEBUG |
| #define REGEX_DUMP_DEBUG_PRINTF printf |
| #else |
| #define REGEX_DUMP_DEBUG_PRINTF |
| #endif |
| |
| #ifdef REGEX_RUN_DEBUG |
| #define REGEX_RUN_DEBUG_PRINTF printf |
| #define REGEX_DUMP_DEBUG_PRINTF printf |
| #else |
| #define REGEX_RUN_DEBUG_PRINTF |
| #endif |
| |
| #if defined(REGEX_SCAN_DEBUG) || defined(REGEX_RUN_DEBUG) || defined(REGEX_DUMP_DEBUG) |
| #include <stdio.h> |
| #endif |
| |
| |
| // |
| // Opcode types In the compiled form of the regexp, these are the type, or opcodes, |
| // of the entries. |
| // |
| enum { |
| URX_RESERVED_OP = 0, |
| URX_BACKTRACK = 1, |
| URX_END = 2, |
| URX_ONECHAR = 3, // Value field is the 21 bit unicode char to match |
| URX_STRING = 4, // Value field is index of string start |
| URX_STRING_LEN = 5, // Value field is string length (code units) |
| URX_STATE_SAVE = 6, // Value field is pattern position to push |
| URX_NOP = 7, |
| URX_START_CAPTURE = 8, // Value field is capture group number. |
| URX_END_CAPTURE = 9, // Value field is capture group number |
| URX_STATIC_SETREF = 10, // Value field is index of set in array of sets. |
| URX_SETREF = 11, // Value field is index of set in array of sets. |
| URX_DOTANY = 12, |
| URX_JMP = 13, // Value field is destination position in |
| // the pattern. |
| URX_FAIL = 14, // Stop match operation, No match. |
| |
| URX_BACKSLASH_A = 15, |
| URX_BACKSLASH_B = 16, // Value field: 0: \b 1: \B |
| URX_BACKSLASH_G = 17, |
| URX_BACKSLASH_W = 18, // Value field: 0: \w 1: \W |
| URX_BACKSLASH_X = 19, |
| URX_BACKSLASH_Z = 20, // \z Unconditional end of line. |
| |
| URX_DOTANY_ALL = 21, // ., in the . matches any mode. |
| URX_BACKSLASH_D = 22, // Value field: 0: \d 1: \D |
| URX_CARET = 23, // Value field: 1: multi-line mode. |
| URX_DOLLAR = 24 // Also for \Z |
| }; |
| |
| // Keep this list of opcode names in sync with the above enum |
| // Used for debug printing only. |
| #define URX_OPCODE_NAMES \ |
| "URX_RESERVED_OP", \ |
| "URX_BACKTRACK", \ |
| "END", \ |
| "ONECHAR", \ |
| "STRING", \ |
| "STRING_LEN", \ |
| "STATE_SAVE", \ |
| "NOP", \ |
| "START_CAPTURE", \ |
| "END_CAPTURE", \ |
| "URX_STATIC_SETREF", \ |
| "SETREF", \ |
| "DOTANY", \ |
| "JMP", \ |
| "FAIL", \ |
| "URX_BACKSLASH_A", \ |
| "URX_BACKSLASH_B", \ |
| "URX_BACKSLASH_G", \ |
| "URX_BACKSLASH_W", \ |
| "URX_BACKSLASH_X", \ |
| "URX_BACKSLASH_Z", \ |
| "URX_DOTANY_ALL", \ |
| "URX_BACKSLASH_D", \ |
| "URX_CARET", \ |
| "URX_DOLLAR" |
| |
| // |
| // Convenience macros for assembling and disassembling a compiled operation. |
| // |
| #define URX_BUILD(type, val) (int32_t)((type << 24) | (val)) |
| #define URX_TYPE(x) ((x) >> 24) |
| #define URX_VAL(x) ((x) & 0xffffff) |
| |
| |
| // |
| // Access to Unicode Sets for Perl-like composite character properties |
| // The sets are accessed by the match engine for things like \w (word boundary) |
| // |
| enum { |
| URX_ISWORD_SET = 1, |
| URX_ISALNUM_SET = 2, |
| URX_ISALPHA_SET = 3, |
| URX_ISSPACE_SET = 4, |
| URX_LAST_SET = 5, |
| |
| URX_NEG_SET = 0x800000 // Flag bit to reverse sense of set |
| // membership test. |
| }; |
| |
| #endif |
| |