Support v2.0 of the NestedText spec (#13)

* Add support for parsing inline lists/objects

* Fix various dumping issues

* Move to a fork of the official tests, now with all representable cases passing

* Treat empty nestedtext file as null

* Minimise cases where multiline object keys are used

* Error on root level indent on first content line

Author: LewisGaul

.github/workflows/release.yml

@@ -3,7 +3,7 @@ name: Create release
 on:
   push:
     tags:
-      - 'v[0-9]+.[0-9]+.[0-9]+'
+      - 'v[0-9]+\.[0-9]+\.[0-9]+[ab]?'
 
 jobs:
   create_release:

.gitmodules

@@ -3,4 +3,4 @@
 	url = https://github.com/Hejsil/zig-clap
 [submodule "tests/official_tests"]
 	path = tests/official_tests
-	url = git@github.com:KenKundert/nestedtext_tests.git
+	url = git@github.com:LewisGaul/nestedtext_tests.git

README.md

@@ -5,7 +5,7 @@
 [![Gyro badge](https://img.shields.io/badge/gyro-nestedtext-blue)](https://astrolabe.pm/#/tag/nestedtext)
 
 
-A NestedText parser written in Zig 0.8 targeting [NestedText v1.3](https://nestedtext.org/en/v1.3/).
+A NestedText parser written in Zig 0.8 targeting [NestedText v2.0](https://nestedtext.org/en/v2.0/).
 
 See my [Zig NestedText Library blog post](https://www.lewisgaul.co.uk/blog/coding/2021/04/18/zig-nestedtext/).
 

src/cli.zig

@@ -172,11 +172,15 @@ fn mainWorker() WriteError!u8 {
                 }
                 return 1;
             };
+            if (tree.root == null) {
+                try stderr.print("An empty file is not valid NestedText\n", .{});
+                return 1;
+            }
             logger.debug("{d:6} Parsed NestedText", .{elapsed()});
 
             switch (args.output_format) {
                 .Json => {
-                    var json_tree = tree.root.toJson(allocator) catch {
+                    var json_tree = tree.root.?.toJson(allocator) catch {
                         try stderr.writeAll("Failed to convert NestedText to JSON\n");
                         return 1;
                     };
@@ -185,7 +189,7 @@ fn mainWorker() WriteError!u8 {
                     logger.debug("{d:6} Stringified JSON", .{elapsed()});
                 },
                 .NestedText => {
-                    try tree.root.stringify(.{}, out_stream);
+                    try tree.root.?.stringify(.{}, out_stream);
                     logger.debug("{d:6} Stringified NestedText", .{elapsed()});
                 },
             }
@@ -209,7 +213,7 @@ fn mainWorker() WriteError!u8 {
                         return 1;
                     };
                     logger.debug("{d:6} Converted to NestedText", .{elapsed()});
-                    try nt_tree.root.stringify(.{}, out_stream);
+                    try nt_tree.root.?.stringify(.{}, out_stream);
                     logger.debug("{d:6} Stringified NestedText", .{elapsed()});
                 },
             }