feat: sync the latest kcl v0.7.0 grammar documents

docs/reference/lang/spec/error.md

@@ -17,7 +17,7 @@ schema is violated.
 The syntax of the `assert` statement is the following.
 
 ```bnf
-assert_stmt: 'assert' test ['if' test] [',' test]
+assert_stmt: ASSERT simple_expr (IF simple_expr)? (COMMA test)?
 ```
 
 In the basic form, an `assert` statement evaluates an expression. If the

docs/reference/lang/spec/kcl-spec.md

@@ -119,7 +119,7 @@ schema_arguments: schema_argument (COMMA schema_argument)*
 schema_argument: NAME [COLON type] [ASSIGN test]
 schema_body: _INDENT (string NEWLINE)* [mixin_stmt] (schema_attribute_stmt|schema_init_stmt|schema_index_signature)* [check_block] _DEDENT
 schema_attribute_stmt: attribute_stmt NEWLINE
-attribute_stmt: [decorators] identifier [QUESTION] COLON type [(ASSIGN|COMP_OR) test]
+attribute_stmt: [decorators] (identifier | STRING) [QUESTION] COLON type [(ASSIGN|COMP_OR) test]
 schema_init_stmt: if_simple_stmt | if_stmt
 schema_index_signature: LEFT_BRACKETS [NAME COLON] [ELLIPSIS] basic_type RIGHT_BRACKETS COLON type [ASSIGN test] NEWLINE
 
@@ -135,8 +135,9 @@ decorator_expr: identifier [call_suffix]
 
 //////////// type ////////////
 type: type_element (OR type_element)*
-type_element: schema_type | basic_type | compound_type | literal_type
+type_element: schema_type | function_type | basic_type | compound_type | literal_type
 schema_type: identifier
+function_type: LEFT_PARENTHESES [type_element (COMMA type_element)*] RIGHT_PARENTHESES [RIGHT_ARROW type_element]
 basic_type: STRING_TYPE | INT_TYPE | FLOAT_TYPE | BOOL_TYPE | ANY_TYPE
 compound_type: list_type | dict_type
 list_type: LEFT_BRACKETS (type)? RIGHT_BRACKETS
@@ -191,11 +192,11 @@ identifier: NAME (DOT NAME)*
 quant_expr: quant_op [ identifier COMMA ] identifier IN quant_target LEFT_BRACE (simple_expr [IF simple_expr] | NEWLINE _INDENT simple_expr [IF simple_expr] NEWLINE _DEDENT)? RIGHT_BRACE
 quant_target: string | identifier | list_expr | list_comp | config_expr | dict_comp
 quant_op: ALL | ANY | FILTER | MAP
-list_expr: LEFT_BRACKETS [list_items | NEWLINE [_INDENT list_items _DEDENT]] RIGHT_BRACKETS
+list_expr: LEFT_BRACKETS [list_items | NEWLINE [list_items]] RIGHT_BRACKETS
 list_items: list_item ((COMMA [NEWLINE] | [NEWLINE]) list_item)* [COMMA] [NEWLINE]
 list_item: test | star_expr | if_item
-list_comp: LEFT_BRACKETS (list_item comp_clause+ | NEWLINE _INDENT list_item comp_clause+ _DEDENT) RIGHT_BRACKETS
-dict_comp: LEFT_BRACE (entry comp_clause+ | NEWLINE _INDENT entry comp_clause+ _DEDENT) RIGHT_BRACE
+list_comp: LEFT_BRACKETS (list_item comp_clause+ | NEWLINE list_item comp_clause) RIGHT_BRACKETS
+dict_comp: LEFT_BRACE (entry comp_clause+ | NEWLINE entry comp_clause+) RIGHT_BRACE
 entry: test (COLON | ASSIGN | COMP_PLUS) test
 comp_clause: FOR loop_variables [COMMA] IN simple_expr [NEWLINE] [IF test [NEWLINE]]
 if_entry: IF test COLON if_entry_exec_block (ELIF test COLON if_entry_exec_block)* (ELSE COLON if_entry_exec_block)?
@@ -207,7 +208,7 @@ star_expr: MULTIPLY test
 double_star_expr: DOUBLE_STAR test
 loop_variables: primary_expr (COMMA primary_expr)*
 schema_expr: identifier (LEFT_PARENTHESES [arguments] RIGHT_PARENTHESES)? config_expr
-config_expr: LEFT_BRACE [config_entries | NEWLINE [_INDENT config_entries _DEDENT]] RIGHT_BRACE
+config_expr: LEFT_BRACE [config_entries | NEWLINE [config_entries]] RIGHT_BRACE
 config_entries: config_entry ((COMMA [NEWLINE] | [NEWLINE]) config_entry)* [COMMA] [NEWLINE]
 config_entry: test (COLON | ASSIGN | COMP_PLUS) test | double_star_expr | if_entry
 
@@ -220,8 +221,8 @@ multiplier: SI_N_L | SI_U_L | SI_M_L | SI_K_L | SI_K | SI_M | SI_G | SI_T | SI_P
     | SI_K_IEC | SI_M_IEC | SI_G_IEC | SI_T_IEC | SI_P_IEC
 string: STRING | LONG_STRING
 constant : TRUE | FALSE | NONE | UNDEFINED
-// Tokens
 
+// Tokens
 ASSIGN: "="
 COLON: ":"
 SEMI_COLON: ";"
@@ -332,10 +333,10 @@ STRING: /r?("(?!"").*?(?<!\\)(\\\\)*?"|'(?!'').*?(?<!\\)(\\\\)*?')/i
 LONG_STRING: /r?(""".*?(?<!\\)(\\\\)*?"""|'''.*?(?<!\\)(\\\\)*?''')/is
 
 DEC_NUMBER: /\-?0|\-?[1-9]\d*/i
-HEX_NUMBER.2: /\-?0[xX][0-9a-fA-F]+/i
-OCT_NUMBER.2: /\-?0[oO]?[0-7]+/i
-BIN_NUMBER.2 : /\-?0[bB][0-1]+/i
-FLOAT_NUMBER.2: /(([-+]?\d+\.\d*|\.\d+)(e[-+]?\d+)?|\d+(e[-+]?\d+))/i
+HEX_NUMBER: /\-?0[xX][0-9a-fA-F]+/i
+OCT_NUMBER: /\-?0[oO]?[0-7]+/i
+BIN_NUMBER: /\-?0[bB][0-1]+/i
+FLOAT_NUMBER: /(([-+]?\d+\.\d*|\.\d+)(e[-+]?\d+)?|\d+(e[-+]?\d+))/i
 
 %ignore /[\t \f]+/  // WS
 %ignore /\\[\t \f]*\r?\n/   // LINE_CONT

docs/reference/lang/spec/modules.md

@@ -296,13 +296,21 @@ KCL supports a few standard system modules. The following is the full list of th
     Deserialize `value` (a string instance containing a JSON document) to a KCL object.
   - dump_to_file(data: any, filename: str, ignore_private: bool = False, ignore_none: bool = False) -> None
     Serialize a KCL object `data` to a JSON formatted str and write it into the file `filename`.
+  - validate(data: any) -> bool
+    Validate whether the given string is a valid JSON.
 - yaml
   - encode(data: any, sort_keys: bool = False, ignore_private: bool = False, ignore_none: bool = False) -> str
     Serialize a KCL object `data` to a YAML formatted str.
+  - encode_all(data: [any], sort_keys: bool = False, ignore_private: bool = False, ignore_none: bool = False) -> str
+    Serialize a sequence of KCL objects into a YAML stream str.
   - decode(value: str) -> any
     Deserialize `value` (a string instance containing a YAML document) to a KCL object.
+  - decode_all(value: str) -> [any]
   - dump_to_file(data: any, filename: str, ignore_private: bool = False, ignore_none: bool = False) -> None
     Serialize a KCL object `data` to a YAML formatted str and write it into the file `filename`.
+    Parse all YAML documents in a stream and produce corresponding KCL objects.
+  - validate(value: str) -> str
+    Validate whether the given string is a valid YAML or YAML stream document.
 - net
   - split_host_port(ip_end_point: str) -> List[str]
     Split the 'host' and 'port' from the ip end point.

docs/reference/lang/spec/schema.md

@@ -15,7 +15,7 @@ A schema is a language element to define a type of configuration data.
 To define a schema, the syntax is the following:
 
 ```bnf
-schema_stmt: [decorators] "schema" ["relaxed"] identifier ["[" [arguments] "]"] ["(" operand_name ")"] ":" NEWLINE [schema_body]
+schema_stmt: [decorators] "schema" identifier ["[" [arguments] "]"] ["(" operand_name ")"] ":" NEWLINE [schema_body]
 schema_body: _INDENT (string NEWLINE)* [mixin_stmt] (schema_attribute_stmt | schema_index_signature | statement)* [check_block] _DEDENT
 ```
 

docs/reference/lang/spec/statements.md

@@ -30,8 +30,8 @@ A small statement is comprised of a single logical line. Multiple statements in
 Generally, assign_stmt is divided into assignment and augmented assignment. The syntax is the following:
 
 ```bnf
-assign_stmt: target_primary ("=" target_primary)* "=" test | target_primary augassign test
-augassign: "+=" | "-=" | "*=" | "**=" | "/=" | "//=" | "%=" | "&=" | "|=" | "^=" | "<<=" | ">>=" | "or" | "and"
+assign_stmt: target_primary (":" type) ("=" target_primary)* "=" test | target_primary aug_assign test
+aug_assign: "+=" | "-=" | "*=" | "**=" | "/=" | "//=" | "%=" | "&=" | "|=" | "^=" | "<<=" | ">>="
 target_primary: identifier | target_primary DOT identifier
 ```
 
@@ -61,7 +61,7 @@ _x -= 1
 _filename += ".k"
 ```
 
-There is no concept of in-place modification in KCL. The `augassign` statement will modify a copy of the **target_primary** and assign the copy to **target_primary**.
+There is no concept of in-place modification in KCL. The `aug_assign` statement will modify a copy of the **target_primary** and assign the copy to **target_primary**.
 
 In particular, in KCL, the `|=` symbol represents the **union** operation, which is defined as follows:
 
@@ -117,7 +117,7 @@ Assert statements are a convenient way to insert debugging assertions into KCL c
 The syntax is the following:
 
 ```
-assert_stmt: ASSERT test ("," test)?
+assert_stmt: ASSERT test ("if" test)? ("," test)?
 ```
 
 The conditional expression in assert will be evaluated and get a boolean. Report an error if returning a `False`.
@@ -178,7 +178,7 @@ else:
 Schema statements are used to define a type of configuration data. The syntax is the following:
 
 ```bnf
-schema_stmt: [decorators] "schema" ["relaxed"] identifier ["[" [arguments] "]"] ["(" operand_name ")"] ":" NEWLINE [schema_body]
+schema_stmt: [decorators] "schema" identifier ["[" [arguments] "]"] ["(" operand_name ")"] ":" NEWLINE [schema_body]
 schema_body: _INDENT (string NEWLINE)* [mixin_stmt] (schema_attribute_stmt | statement)* [check_block] _DEDENT
 ```
 

i18n/zh-CN/docusaurus-plugin-content-docs/current/reference/lang/spec/error.md

@@ -17,7 +17,7 @@ schema is violated.
 The syntax of the `assert` statement is the following.
 
 ```bnf
-assert_stmt: 'assert' test ['if' test] [',' test]
+assert_stmt: ASSERT simple_expr (IF simple_expr)? (COMMA test)?
 ```
 
 In the basic form, an `assert` statement evaluates an expression. If the

i18n/zh-CN/docusaurus-plugin-content-docs/current/reference/lang/spec/kcl-spec.md

@@ -119,7 +119,7 @@ schema_arguments: schema_argument (COMMA schema_argument)*
 schema_argument: NAME [COLON type] [ASSIGN test]
 schema_body: _INDENT (string NEWLINE)* [mixin_stmt] (schema_attribute_stmt|schema_init_stmt|schema_index_signature)* [check_block] _DEDENT
 schema_attribute_stmt: attribute_stmt NEWLINE
-attribute_stmt: [decorators] identifier [QUESTION] COLON type [(ASSIGN|COMP_OR) test]
+attribute_stmt: [decorators] (identifier | STRING) [QUESTION] COLON type [(ASSIGN|COMP_OR) test]
 schema_init_stmt: if_simple_stmt | if_stmt
 schema_index_signature: LEFT_BRACKETS [NAME COLON] [ELLIPSIS] basic_type RIGHT_BRACKETS COLON type [ASSIGN test] NEWLINE
 
@@ -135,8 +135,9 @@ decorator_expr: identifier [call_suffix]
 
 //////////// type ////////////
 type: type_element (OR type_element)*
-type_element: schema_type | basic_type | compound_type | literal_type
+type_element: schema_type | function_type | basic_type | compound_type | literal_type
 schema_type: identifier
+function_type: LEFT_PARENTHESES [type_element (COMMA type_element)*] RIGHT_PARENTHESES [RIGHT_ARROW type_element]
 basic_type: STRING_TYPE | INT_TYPE | FLOAT_TYPE | BOOL_TYPE | ANY_TYPE
 compound_type: list_type | dict_type
 list_type: LEFT_BRACKETS (type)? RIGHT_BRACKETS
@@ -191,11 +192,11 @@ identifier: NAME (DOT NAME)*
 quant_expr: quant_op [ identifier COMMA ] identifier IN quant_target LEFT_BRACE (simple_expr [IF simple_expr] | NEWLINE _INDENT simple_expr [IF simple_expr] NEWLINE _DEDENT)? RIGHT_BRACE
 quant_target: string | identifier | list_expr | list_comp | config_expr | dict_comp
 quant_op: ALL | ANY | FILTER | MAP
-list_expr: LEFT_BRACKETS [list_items | NEWLINE [_INDENT list_items _DEDENT]] RIGHT_BRACKETS
+list_expr: LEFT_BRACKETS [list_items | NEWLINE [list_items]] RIGHT_BRACKETS
 list_items: list_item ((COMMA [NEWLINE] | [NEWLINE]) list_item)* [COMMA] [NEWLINE]
 list_item: test | star_expr | if_item
-list_comp: LEFT_BRACKETS (list_item comp_clause+ | NEWLINE _INDENT list_item comp_clause+ _DEDENT) RIGHT_BRACKETS
-dict_comp: LEFT_BRACE (entry comp_clause+ | NEWLINE _INDENT entry comp_clause+ _DEDENT) RIGHT_BRACE
+list_comp: LEFT_BRACKETS (list_item comp_clause+ | NEWLINE list_item comp_clause) RIGHT_BRACKETS
+dict_comp: LEFT_BRACE (entry comp_clause+ | NEWLINE entry comp_clause+) RIGHT_BRACE
 entry: test (COLON | ASSIGN | COMP_PLUS) test
 comp_clause: FOR loop_variables [COMMA] IN simple_expr [NEWLINE] [IF test [NEWLINE]]
 if_entry: IF test COLON if_entry_exec_block (ELIF test COLON if_entry_exec_block)* (ELSE COLON if_entry_exec_block)?
@@ -207,7 +208,7 @@ star_expr: MULTIPLY test
 double_star_expr: DOUBLE_STAR test
 loop_variables: primary_expr (COMMA primary_expr)*
 schema_expr: identifier (LEFT_PARENTHESES [arguments] RIGHT_PARENTHESES)? config_expr
-config_expr: LEFT_BRACE [config_entries | NEWLINE [_INDENT config_entries _DEDENT]] RIGHT_BRACE
+config_expr: LEFT_BRACE [config_entries | NEWLINE [config_entries]] RIGHT_BRACE
 config_entries: config_entry ((COMMA [NEWLINE] | [NEWLINE]) config_entry)* [COMMA] [NEWLINE]
 config_entry: test (COLON | ASSIGN | COMP_PLUS) test | double_star_expr | if_entry
 
@@ -220,8 +221,8 @@ multiplier: SI_N_L | SI_U_L | SI_M_L | SI_K_L | SI_K | SI_M | SI_G | SI_T | SI_P
     | SI_K_IEC | SI_M_IEC | SI_G_IEC | SI_T_IEC | SI_P_IEC
 string: STRING | LONG_STRING
 constant : TRUE | FALSE | NONE | UNDEFINED
-// Tokens
 
+// Tokens
 ASSIGN: "="
 COLON: ":"
 SEMI_COLON: ";"
@@ -332,10 +333,10 @@ STRING: /r?("(?!"").*?(?<!\\)(\\\\)*?"|'(?!'').*?(?<!\\)(\\\\)*?')/i
 LONG_STRING: /r?(""".*?(?<!\\)(\\\\)*?"""|'''.*?(?<!\\)(\\\\)*?''')/is
 
 DEC_NUMBER: /\-?0|\-?[1-9]\d*/i
-HEX_NUMBER.2: /\-?0[xX][0-9a-fA-F]+/i
-OCT_NUMBER.2: /\-?0[oO]?[0-7]+/i
-BIN_NUMBER.2 : /\-?0[bB][0-1]+/i
-FLOAT_NUMBER.2: /(([-+]?\d+\.\d*|\.\d+)(e[-+]?\d+)?|\d+(e[-+]?\d+))/i
+HEX_NUMBER: /\-?0[xX][0-9a-fA-F]+/i
+OCT_NUMBER: /\-?0[oO]?[0-7]+/i
+BIN_NUMBER: /\-?0[bB][0-1]+/i
+FLOAT_NUMBER: /(([-+]?\d+\.\d*|\.\d+)(e[-+]?\d+)?|\d+(e[-+]?\d+))/i
 
 %ignore /[\t \f]+/  // WS
 %ignore /\\[\t \f]*\r?\n/   // LINE_CONT