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Implement \u{hex} support. (#3447)

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A large rework because surrogate pairs must be combined.

Currently only the 0x10C80..0x10CF2 is accepted as valid identifier character from the non-basic plane.

JerryScript-DCO-1.0-Signed-off-by: Zoltan Herczeg zherczeg.u-szeged@partner.samsung.com
This commit is contained in:
Zoltan Herczeg
2019-12-16 11:26:02 +01:00
committed by Dániel Bátyai
parent 1db16c3a1c
commit 40d930d62c
22 changed files with 765 additions and 370 deletions
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jerry-core/lit/lit-strings.c
+10 -10
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@@ -481,7 +481,7 @@ lit_read_prev_code_unit_from_utf8 (const lit_utf8_byte_t *buf_p, /**< buffer wit
* @return next code unit
*/
ecma_char_t
lit_utf8_read_next (const lit_utf8_byte_t **buf_p) /**< [in,out] buffer with characters */
lit_cesu8_read_next (const lit_utf8_byte_t **buf_p) /**< [in,out] buffer with characters */
{
JERRY_ASSERT (*buf_p);
ecma_char_t ch;
@@ -489,7 +489,7 @@ lit_utf8_read_next (const lit_utf8_byte_t **buf_p) /**< [in,out] buffer with cha
*buf_p += lit_read_code_unit_from_utf8 (*buf_p, &ch);
return ch;
} /* lit_utf8_read_next */
} /* lit_cesu8_read_next */
/**
* Decodes a unicode code unit from non-empty cesu-8-encoded buffer
@@ -497,7 +497,7 @@ lit_utf8_read_next (const lit_utf8_byte_t **buf_p) /**< [in,out] buffer with cha
* @return previous code unit
*/
ecma_char_t
lit_utf8_read_prev (const lit_utf8_byte_t **buf_p) /**< [in,out] buffer with characters */
lit_cesu8_read_prev (const lit_utf8_byte_t **buf_p) /**< [in,out] buffer with characters */
{
JERRY_ASSERT (*buf_p);
ecma_char_t ch;
@@ -506,7 +506,7 @@ lit_utf8_read_prev (const lit_utf8_byte_t **buf_p) /**< [in,out] buffer with cha
lit_read_code_unit_from_utf8 (*buf_p, &ch);
return ch;
} /* lit_utf8_read_prev */
} /* lit_cesu8_read_prev */
/**
* Decodes a unicode code unit from non-empty cesu-8-encoded buffer
@@ -514,15 +514,15 @@ lit_utf8_read_prev (const lit_utf8_byte_t **buf_p) /**< [in,out] buffer with cha
* @return next code unit
*/
ecma_char_t
lit_utf8_peek_next (const lit_utf8_byte_t *buf_p) /**< [in,out] buffer with characters */
lit_cesu8_peek_next (const lit_utf8_byte_t *buf_p) /**< [in,out] buffer with characters */
{
JERRY_ASSERT (buf_p);
JERRY_ASSERT (buf_p != NULL);
ecma_char_t ch;
lit_read_code_unit_from_utf8 (buf_p, &ch);
return ch;
} /* lit_utf8_peek_next */
} /* lit_cesu8_peek_next */
/**
* Decodes a unicode code unit from non-empty cesu-8-encoded buffer
@@ -530,15 +530,15 @@ lit_utf8_peek_next (const lit_utf8_byte_t *buf_p) /**< [in,out] buffer with char
* @return previous code unit
*/
ecma_char_t
lit_utf8_peek_prev (const lit_utf8_byte_t *buf_p) /**< [in,out] buffer with characters */
lit_cesu8_peek_prev (const lit_utf8_byte_t *buf_p) /**< [in,out] buffer with characters */
{
JERRY_ASSERT (buf_p);
JERRY_ASSERT (buf_p != NULL);
ecma_char_t ch;
lit_read_prev_code_unit_from_utf8 (buf_p, &ch);
return ch;
} /* lit_utf8_peek_prev */
} /* lit_cesu8_peek_prev */
/**
* Increase cesu-8 encoded string pointer by one code unit.