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Rework RegExp engine and add support for proper unicode matching (#3746)

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This change includes several bugfixes, general improvements, and support
for additional features.
- Added full support for web compatibility syntax defined in Annex B
- Implemented parsing and matching patterns in unicode mode
- Fixed capture results when iterating with nested capturing groups
- Significantly reduced regexp bytecode size
- Reduced stack usage during regexp execution
- Improved matching performance

JerryScript-DCO-1.0-Signed-off-by: Dániel Bátyai dbatyai@inf.u-szeged.hu
This commit is contained in:
Dániel Bátyai
2020-05-26 15:28:54 +02:00
committed by GitHub
parent 908240ba62
commit 8f76a1f382
30 changed files with 3641 additions and 2647 deletions
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jerry-core/ecma/builtin-objects/ecma-builtins.c
+3 -5
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@@ -505,12 +505,10 @@ ecma_instantiate_builtin (ecma_builtin_id_t obj_builtin_id) /**< built-in id */
ext_object_p->u.class_prop.class_id = LIT_MAGIC_STRING_REGEXP_UL;
const re_compiled_code_t *bc_p = NULL;
ecma_value_t ret_value = re_compile_bytecode (&bc_p,
ecma_get_magic_string (LIT_MAGIC_STRING_EMPTY_NON_CAPTURE_GROUP),
RE_FLAG_EMPTY);
re_compiled_code_t *bc_p = re_compile_bytecode (ecma_get_magic_string (LIT_MAGIC_STRING_EMPTY_NON_CAPTURE_GROUP),
RE_FLAG_EMPTY);
JERRY_ASSERT (ecma_is_value_empty (ret_value));
JERRY_ASSERT (bc_p != NULL);
ECMA_SET_INTERNAL_VALUE_POINTER (ext_object_p->u.class_prop.u.value, bc_p);