76 lines
2.6 KiB
C
76 lines
2.6 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,
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// Definitions of constant values used in the compiled form of
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// a regular expression pattern.
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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 regexp, these are the type, or opcodes,
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// of the entries.
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//
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enum {
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URX_UNUSED1 = 1,
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URX_END = 2,
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URX_ONECHAR = 3, // Value field is the 21 bit unicode char to match
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URX_STRING = 4, // Value field is index of string start
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URX_STRING_LEN = 5, // Value field is string length (code units)
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URX_STATE_SAVE = 6, // Value field is pattern position to push
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URX_NOP = 7,
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URX_START_CAPTURE = 8, // Value field is capture group number.
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URX_END_CAPTURE = 9, // Value field is capture group number
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URX_STATIC_SETREF = 10, // Value field is index of set in array of sets.
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URX_SETREF = 11, // Value field is index of set in array of sets.
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URX_DOTANY = 12,
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URX_JMP = 13, // Value field is destination position in
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// the pattern.
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URX_FAIL = 14, // Stop match operation, No match.
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URX_BACKSLASH_A = 15,
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URX_BACKSLASH_B = 16, // Value field: 0: \b 1: \B
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URX_BACKSLASH_G = 17,
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URX_BACKSLASH_W = 18, // Value field: 0: \w 1: \W
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URX_BACKSLASH_X = 19,
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URX_BACKSLASH_Z = 20, // \z Unconditional end of line.
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URX_DOTANY_ALL = 21, // ., in the . matches any mode.
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URX_BACKSLASH_D = 22, // Value field: 0: \d 1: \D
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URX_CARET = 23, // Value field: 1: multi-line mode.
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URX_DOLLAR = 24 // Also for \Z
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};
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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 Perl-like composite character 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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enum {
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URX_ISWORD_SET = 1,
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URX_ISALNUM_SET = 2,
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URX_ISALPHA_SET = 3,
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URX_ISSPACE_SET = 4,
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URX_LAST_SET = 5,
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URX_NEG_SET = 0x800000 // Flag bit to reverse sense of set
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// membership test.
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};
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#endif
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