Renamed ./src/external to ./src/extensions. No code logic changes. (0.40.5)

web/documentation/extensions/json/json.md

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+---
+layout: page
+published: true
+noToc: false
+noComments: false
+noDate: false
+title: Fun - JSON (json-c) extension (optional)
+subtitle: Documentation for JSON (json-c) extension (optional)
+description: Documentation for JSON (json-c) extension (optional)
+permalink: /documentation/extensions/json/
+lang: en
+tags:
+- extension
+- json
+- optional
+---
+
+
+- CMake option: FUN_WITH_JSON=ON
+- Purpose: JSON parse/stringify and file helpers via json-c.
+- Homepage: [https://json-c.github.io/json-c/](https://json-c.github.io/json-c/){:class="ext"}
+
+## Opcodes:
+
+- OP_JSON_PARSE: pops text; pushes value or Nil on error
+- OP_JSON_STRINGIFY: pops pretty:int(0/1), value; pushes string
+- OP_JSON_FROM_FILE: pops path; pushes value or Nil
+- OP_JSON_TO_FILE: pops pretty:int(0/1), value, path; pushes 1/0
+
+## Notes:
+
+- Requires json-c development headers/libs.
+- When disabled, functions push empty/neutral values similar to other optional modules.