47 lines
2.0 KiB
C
47 lines
2.0 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_BACKSLASH_A = 10; // Value field is index in pattern to
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// loop back to.
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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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//
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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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#endif
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