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https://github.com/jerryscript-project/jerryscript.git
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579b1edaa5
JerryScript-DCO-1.0-Signed-off-by: Zsolt Borbély zsborbely.u-szeged@partner.samsung.com JerryScript-DCO-1.0-Signed-off-by: Dániel Bátyai dbatyai.u-szeged@partner.samsung.com
101 lines
2.9 KiB
C
101 lines
2.9 KiB
C
/* Copyright 2015 Samsung Electronics Co., Ltd.
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* Copyright 2015 University of Szeged.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef RE_PARSER_H
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#define RE_PARSER_H
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#ifndef CONFIG_ECMA_COMPACT_PROFILE_DISABLE_REGEXP_BUILTIN
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#include "opcodes-dumper.h"
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/**
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* RegExp token type definitions
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*/
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typedef enum
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{
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RE_TOK_EOF, /* EOF */
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RE_TOK_BACKREFERENCE, /* \[0..9] */
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RE_TOK_CHAR, /* any character */
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RE_TOK_ALTERNATIVE, /* | */
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RE_TOK_ASSERT_START, /* ^ */
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RE_TOK_ASSERT_END, /* $ */
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RE_TOK_PERIOD, /* . */
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RE_TOK_START_CAPTURE_GROUP, /* ( */
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RE_TOK_START_NON_CAPTURE_GROUP, /* (?: */
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RE_TOK_END_GROUP, /* ')' */
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RE_TOK_ASSERT_START_POS_LOOKAHEAD, /* (?= */
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RE_TOK_ASSERT_START_NEG_LOOKAHEAD, /* (?! */
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RE_TOK_ASSERT_WORD_BOUNDARY, /* \b */
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RE_TOK_ASSERT_NOT_WORD_BOUNDARY, /* \B */
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RE_TOK_DIGIT, /* \d */
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RE_TOK_NOT_DIGIT, /* \D */
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RE_TOK_WHITE, /* \s */
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RE_TOK_NOT_WHITE, /* \S */
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RE_TOK_WORD_CHAR, /* \w */
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RE_TOK_NOT_WORD_CHAR, /* \W */
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RE_TOK_START_CHAR_CLASS, /* [ ] */
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RE_TOK_START_INV_CHAR_CLASS, /* [^ ] */
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} re_token_type_t;
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/**
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* RegExp constant of infinite
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*/
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#define RE_ITERATOR_INFINITE ((uint32_t)-1)
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/**
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* Maximum number of decimal escape digits
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*/
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#define RE_MAX_RE_DECESC_DIGITS 9
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/**
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* Undefined character (out of the range of the codeunit)
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*/
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#define RE_CHAR_UNDEF 0xFFFFFFFF
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/**
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* RegExp token type
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*/
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typedef struct
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{
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re_token_type_t type; /**< type of the token */
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uint32_t value; /**< value of the token */
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uint32_t qmin; /**< minimum number of token iterations */
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uint32_t qmax; /**< maximum number of token iterations */
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bool greedy; /**< type of iteration */
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} re_token_t;
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/**
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* RegExp parser context
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*/
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typedef struct
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{
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lit_utf8_byte_t *input_start_p; /**< start of input pattern */
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lit_utf8_byte_t *input_curr_p; /**< current position in input pattern */
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lit_utf8_byte_t *input_end_p; /**< end of input pattern */
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int num_of_groups; /**< number of groups */
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uint32_t num_of_classes; /**< number of character classes */
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} re_parser_ctx_t;
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typedef void (*re_char_class_callback) (void *re_ctx_p, uint32_t start, uint32_t end);
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ecma_completion_value_t
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re_parse_char_class (re_parser_ctx_t *, re_char_class_callback, void *, re_token_t *);
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ecma_completion_value_t
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re_parse_next_token (re_parser_ctx_t *, re_token_t *);
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#endif /* CONFIG_ECMA_COMPACT_PROFILE_DISABLE_REGEXP_BUILTIN */
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#endif /* RE_PARSER_H */
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