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Improvements related to lexer

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Improvements related to lexer:

* duplicated clone elimination
* magic numbers are replaced with constants
* functions are moved form util to lit-char-helpers

JerryScript-DCO-1.0-Signed-off-by: István Kádár ikadar@inf.u-szeged.hu
This commit is contained in:
Istvan Kadar
2016-04-14 10:26:36 +02:00
committed by Akos Kiss
parent c7dcce4fc7
commit ecfd478df0
9 changed files with 424 additions and 388 deletions
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jerry-core/lit/lit-char-helpers.h
+8 -2
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@@ -78,8 +78,10 @@ extern bool lit_char_is_line_terminator (ecma_char_t);
#define LIT_CHAR_UNDERSCORE ((ecma_char_t) '_') /* low line (underscore) */
/* LIT_CHAR_BACKSLASH defined above */
extern bool lit_char_is_unicode_letter (ecma_char_t);
extern bool lit_char_is_unicode_non_letter_ident_part (ecma_char_t);
extern bool lit_char_is_identifier_start (const uint8_t *);
extern bool lit_char_is_identifier_part (const uint8_t *);
extern bool lit_char_is_identifier_start_character (ecma_char_t);
extern bool lit_char_is_identifier_part_character (ecma_char_t);
/*
* Punctuator characters (ECMA-262 v5, 7.7)
@@ -210,10 +212,14 @@ extern bool lit_char_is_unicode_non_letter_ident_part (ecma_char_t);
#define LIT_CHAR_ASCII_DIGITS_BEGIN LIT_CHAR_0 /* decimal digits range */
#define LIT_CHAR_ASCII_DIGITS_END LIT_CHAR_9
#define LEXER_TO_ASCII_LOWERCASE(character) ((character) | LIT_CHAR_SP)
extern bool lit_char_is_octal_digit (ecma_char_t);
extern bool lit_char_is_decimal_digit (ecma_char_t);
extern bool lit_char_is_hex_digit (ecma_char_t);
extern uint32_t lit_char_hex_to_int (ecma_char_t);
extern size_t lit_char_to_utf8_bytes (uint8_t *, ecma_char_t);
extern size_t lit_char_get_utf8_length (ecma_char_t);
/* read a hex encoded code point from a zero terminated buffer */
bool lit_read_code_unit_from_hex (const lit_utf8_byte_t *, lit_utf8_size_t, ecma_char_ptr_t);