71 lines
3.2 KiB
C
71 lines
3.2 KiB
C
//
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// Copyright (C) 2002 International Business Machines Corporation
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// and others. All rights reserved.
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//
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// file: regeximp.h
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//
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// ICU Regular Expressions, declarations of internal implementation types
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// and constants that are common between the pattern compiler and the
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// runtime execution engine.
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//
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#ifndef _REGEXIMP_H
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#define _REGEXIMP_H
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//
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// Opcode types In the compiled form of the regex, these are the type, or opcodes,
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// of the entries.
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//
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static const uint32_t URX_UNUSED1 = 1;
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static const uint32_t URX_END = 2;
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static const uint32_t URX_ONECHAR = 3;
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static const uint32_t URX_STRING = 4; // Value field is index of string start
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static const uint32_t URX_STRING_LEN = 5; // Value field is string length (code units)
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static const uint32_t URX_STATE_SAVE = 6; // Value field is pattern position to push
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static const uint32_t URX_NOP = 7;
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static const uint32_t URX_START_CAPTURE = 8; // Value field is capture group number.
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static const uint32_t URX_END_CAPTURE = 9; // Value field is capture group number
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static const uint32_t URX_STATIC_SETREF = 10; // Value field is index of set in array of sets.
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static const uint32_t URX_SETREF = 11; // Value field is index of set in array of sets.
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static const uint32_t URX_DOTANY = 12;
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static const uint32_t URX_JMP = 13; // Value field is destination position in
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// the pattern.
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static const uint32_t URX_FAIL = 14; // Stop match operation; No match.
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static const uint32_t URX_BACKSLASH_A = 15;
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static const uint32_t URX_BACKSLASH_B = 16; // Value field: 0: \b 1: \B
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static const uint32_t URX_BACKSLASH_G = 17;
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static const uint32_t URX_BACKSLASH_W = 18; // Value field: 0: \w 1: \W
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static const uint32_t URX_BACKSLASH_X = 19;
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static const uint32_t URX_BACKSLASH_Z = 20; // \z Unconditional end of line.
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static const uint32_t URX_DOTANY_ALL = 21; // ., in the . matches any mode.
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static const uint32_t URX_BACKSLASH_D = 22; // Value field: 0: \d 1: \D
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static const uint32_t URX_CARET = 23; // Value field: 1: multi-line mode.
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static const uint32_t URX_DOLLAR = 24; // Also for \Z
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//
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// Convenience macros for assembling and disassembling a compiled operation.
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//
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#define URX_BUILD(type, val) (int32_t)((type << 24) | (val))
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#define URX_TYPE(x) ((x) >> 24)
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#define URX_VAL(x) ((x) & 0xffffff)
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//
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// Access to Unicode Sets for composite properties
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// The sets are accessed by the match engine for things like \w (word boundary)
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//
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static const uint32_t URX_ISWORD_SET = 1;
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static const uint32_t URX_ISALNUM_SET = 2;
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static const uint32_t URX_ISALPHA_SET = 3;
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static const uint32_t URX_ISSPACE_SET = 4;
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static const uint32_t URX_LAST_SET = 5;
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static const uint32_t URX_NEG_SET = 0x800000; // Flag bit to reverse sense of set
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// membership test.
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#endif
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