51 lines
1.0 KiB
Plaintext
51 lines
1.0 KiB
Plaintext
|
parser:
|
||
|
|
- call parse_value
|
||
|
|
- next_token
|
||
|
|
? <EOF> nop.
|
||
|
|
|
||
|
|
parse_value:
|
||
|
|
- next_token
|
||
|
|
? <OBJ_BEGIN> call parse_object.
|
||
|
|
? <ARR_BEGIN> call parse_array.
|
||
|
|
? <STRING> push. return.
|
||
|
|
? <BOOLEAN> push. return.
|
||
|
|
? <NULL> push. return.
|
||
|
|
? <NUMBER> push. return.
|
||
|
|
|
||
|
|
parse_object:
|
||
|
|
- push table
|
||
|
|
- next_token
|
||
|
|
? <STRING> push.
|
||
|
|
- next_token
|
||
|
|
? <COLON> nop.
|
||
|
|
- call parse_value
|
||
|
|
- set table
|
||
|
|
- next_token
|
||
|
|
? <OBJ_END> return.
|
||
|
|
? <COMMA> loop parse_object.
|
||
|
|
|
||
|
|
parse_array:
|
||
|
|
- push table
|
||
|
|
- call parse_value
|
||
|
|
- table append
|
||
|
|
- next_token
|
||
|
|
? <COMMA> loop parse_array.
|
||
|
|
? ] return.
|
||
|
|
|
||
|
|
next_token:
|
||
|
|
- check next character
|
||
|
|
? { return <OBJ_BEGIN>
|
||
|
|
? } return <OBJ_END>
|
||
|
|
? [ return <ARR_BEGIN>
|
||
|
|
? ] return <ARR_END>
|
||
|
|
? , return <COMMA>
|
||
|
|
? : return <COLON>
|
||
|
|
? [-0-9] gobble number. return <NUMBER>
|
||
|
|
? " gobble string. return <STRING>
|
||
|
|
? [ \t\n] eat whitespace.
|
||
|
|
? n Check "null". return <NULL> or <UNKNOWN>
|
||
|
|
? t Check "true". return <BOOLEAN> or <UNKNOWN>
|
||
|
|
? f Check "false". return <BOOLEAN> or <UNKNOWN>
|
||
|
|
? . return <UNKNOWN>
|
||
|
|
? \0 return <END>
|