https://github.com/petabyt/json

C JSON parser, no malloc, 200 lines
https://github.com/petabyt/json

Last synced: about 24 hours ago
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C JSON parser, no malloc, 200 lines

• Host: GitHub
• URL: https://github.com/petabyt/json
• Owner: petabyt
• Created: 2024-01-04T02:07:49.000Z (about 1 year ago)
• Default Branch: master
• Last Pushed: 2024-11-05T05:17:33.000Z (2 months ago)
• Last Synced: 2025-01-12T22:15:03.246Z (6 days ago)
• Language: C
• Size: 21.5 KB
• Stars: 2
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

        
# json

~200LoC. It has one function:

```

int json_get(struct Parse *p, char *text, char *intent);

```

The output of the JS-like 'intent' will be stored in `p.str` with length `p.str_len`. This will just point to an offset in the buffer you gave the parser.

Optionally, you can call `char *json_fixup_string(struct Parse *p)` to get a formatted output.

```

char *data = ... see c.txt ...;

struct Parse p;

json_get(&p, data, "['amendments'][10]");

```

Advantages:

- Very fast lexer & recursive descent parser

- Simple API

- No memory allocation required

- Correct (?) It parsed the entire [bible](https://github.com/heb12/gratis.json/blob/master/en/web.json).

Disadvantages:

- May not throw error on invalid syntax / invalid accesses

- Not memory safe

- Doesn't parse into a tree for reformatting back to text