From 36d6b4e5549dc45baf890105de5ef487211f0144 Mon Sep 17 00:00:00 2001
From: Boris Kolpackov <boris@codesynthesis.com>
Date: Tue, 6 Feb 2024 05:22:12 +0200
Subject: Add experimental support for JSON value types

New types:

  json
  json_array
  json_object

New functions:

  $json.value_type(<json>)
  $json.value_size(<json>)
  $json.member_{name,value}(<json-member>)
  $json.object_names(<json-object>)
  $json.array_size(<json-array>)
  $json.array_find(<json-array>, <json>)
  $json.array_find_index(<json-array>, <json>)
  $json.load(<path>)
  $json.parse(<text>)
  $json.serialize(<json>[, <indentation>])

For example, to load a JSON value from a file:

j = $json.load($src_base/board.json)

Or to construct it in a buildfile:

j = [json] one@1 two@([json] 2 3 4) three@([json] x@1 y@-1)

This can also be done incrementally with append/prepend:

j = [json_object]
j += one@1
j += two@([json] 2 3 4)
j += three@([json] x@1 y@-1)

Instead of using this JSON-like syntax, one can also specify valid JSON
input text:

j = [json] '{"one":1, "two":[2, 3, 4], "three":{"x":1, "y":-1}'

Besides the above set of functions, other handy ways to access components
in a JSON value are iteration and subscript. For example:

for m: $j
  print $member_name($m) $member_value($m)

print ($j[three])

A subscript can be nested:

print ($j[two][1])
print ($j[three][x])

While a JSON value can be printed directly like any other value, the
representation will not be pretty-printed. As a result, for complex
JSON values, printing a serialized representation might be a more
readable option:

info $serialize($j)
---
 tests/function/json/buildfile | 4 ++++
 1 file changed, 4 insertions(+)
 create mode 100644 tests/function/json/buildfile

(limited to 'tests/function/json/buildfile')

diff --git a/tests/function/json/buildfile b/tests/function/json/buildfile
new file mode 100644
index 0000000..45c60d2
--- /dev/null
+++ b/tests/function/json/buildfile
@@ -0,0 +1,4 @@
+# file      : tests/function/json/buildfile
+# license   : MIT; see accompanying LICENSE file
+
+./: testscript $b
-- 
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