Merge pull request #71 from daurnimator/add-zig-jsonValue

Add zig implementation using std.json.Value

Author: nickjj

zig/jsonValue.zig

@@ -0,0 +1,59 @@
+const std = @import("std");
+
+const input =
+    \\[
+    \\  {
+    \\    "title": "Getting started",
+    \\    "reset_lesson_position": false,
+    \\    "lessons": [
+    \\      {"name": "Welcome"},
+    \\      {"name": "Installation"}
+    \\    ]
+    \\  },
+    \\
+    \\  {
+    \\    "title": "Basic operator",
+    \\    "reset_lesson_position": false,
+    \\    "lessons": [
+    \\      {"name": "Addition / Subtraction"},
+    \\      {"name": "Multiplication / Division"}
+    \\    ]
+    \\  },
+    \\
+    \\  {
+    \\    "title": "Advanced topics",
+    \\    "reset_lesson_position": true,
+    \\    "lessons": [
+    \\      {"name": "Mutability"},
+    \\      {"name": "Immutability"}
+    \\    ]
+    \\  }
+    \\]
+;
+
+pub fn main() !void {
+    const stdout = std.io.getStdOut().writer();
+
+    var p = std.json.Parser.init(std.heap.page_allocator, false);
+    defer p.deinit();
+    var tree = try p.parse(input);
+    defer tree.deinit();
+
+    var section_counter: u32 = 1;
+    var lesson_counter: u32 = 1;
+    for (tree.root.Array.items) |*section| {
+        if (section.Object.get("reset_lesson_position").?.Bool) {
+            lesson_counter = 1;
+        }
+
+        try section.Object.put("position", .{ .Integer = section_counter });
+        section_counter += 1;
+
+        for (section.Object.get("lessons").?.Array.items) |*lesson| {
+            try lesson.Object.put("position", .{ .Integer = lesson_counter });
+            lesson_counter += 1;
+        }
+    }
+
+    try tree.root.jsonStringify(.{ .whitespace = .{} }, stdout);
+}