mirror of
https://github.com/jerryscript-project/jerryscript.git
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0511091e8a
Since the project is now hosted at the JS Foundation we can move to unified copyright notices for the project. Starting with this commit all future contributions to the project should only carry the following copyright notice (except for third-party code which requires copyright information to be preserved): "Copyright JS Foundation and other contributors, http://js.foundation" (without the quotes) This avoids cluttering the codebase with contributor-specific copyright notices which have a higher maintenance overhead and tend to get outdated quickly. Also dropping the year from the copyright notices helps to avoid yearly code changes just to update the copyright notices. Note that each contributor still retains full copyright ownership of his/her contributions and the respective authorship is tracked very accurately via Git. JerryScript-DCO-1.0-Signed-off-by: Tilmann Scheller t.scheller@samsung.com
117 lines
3.3 KiB
C
117 lines
3.3 KiB
C
/* Copyright JS Foundation and other contributors, http://js.foundation
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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_DISABLE_REGEXP_BUILTIN
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/** \addtogroup parser Parser
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* @{
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*
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* \addtogroup regexparser Regular expression
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* @{
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*
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* \addtogroup regexparser_bytecode Bytecode
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* @{
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*/
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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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* @}
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*
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* \addtogroup regexparser_parser Parser
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* @{
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*/
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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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* 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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const lit_utf8_byte_t *input_start_p; /**< start of input pattern */
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const lit_utf8_byte_t *input_curr_p; /**< current position in input pattern */
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const 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, ecma_char_t start, ecma_char_t end);
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ecma_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_value_t
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re_parse_next_token (re_parser_ctx_t *, re_token_t *);
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/**
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* @}
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* @}
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* @}
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*/
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#endif /* !CONFIG_DISABLE_REGEXP_BUILTIN */
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#endif /* !RE_PARSER_H */
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