web snapshots: add switch for saving/loading exports, update web version, web snapshot tooling

1 files changed, 14 insertions, 4 deletions

diff --git a/src/syntax.zig b/src/syntax.zig
index 0d2fa291..bbab17fa 100644
--- a/src/syntax.zig
+++ b/src/syntax.zig
@@ -1,12 +1,13 @@
 //! Tree-sitter syntax highlighting: one style byte per content byte, filled by
 //! running each grammar's highlights.scm query (slurped at build time into the
-//! ts_queries options module). Grammar set is tiered: `minimal` (c, cpp, zig)
-//! compiles queries at startup; `full` adds ~23 languages lazily on first use.
+//! ts_queries options module). Grammar set is tiered: `zig`; `minimal` (c, cpp,
+//! zig); and `full`, which adds ~23 languages lazily on first use.
 const std = @import("std");
 const config = @import("pardes_config");
 const tracy = @import("tracy.zig");
 
 pub const enabled = config.syntax_highlighting;
+const zig_grammar = config.syntax_zig_grammar;
 const minimal_grammars = config.syntax_minimal_grammars;
 const full_grammars = config.syntax_full_grammars;
 
@@ -52,10 +53,13 @@ const Spec = struct {
     compiled_query: ?*ts.Query = null,
 };
 
+var zig_specs = if (zig_grammar) [_]Spec{
+    .{ .exts = &.{ ".zig", ".zon" }, .language = tree_sitter_zig, .query_src = ts_queries.zig_highlights },
+} else [_]Spec{};
+
 var minimal_specs = if (minimal_grammars) [_]Spec{
     .{ .exts = &.{ ".c", ".h" }, .language = tree_sitter_c, .query_src = ts_queries.c_highlights },
     .{ .exts = &.{ ".cpp", ".cc", ".cxx", ".hpp", ".hh", ".hxx" }, .language = tree_sitter_cpp, .query_src = ts_queries.cpp_highlights },
-    .{ .exts = &.{ ".zig", ".zon" }, .language = tree_sitter_zig, .query_src = ts_queries.zig_highlights },
 } else [_]Spec{};
 
 var full_specs = if (full_grammars) [_]Spec{
@@ -98,6 +102,11 @@ fn ensure(spec: *Spec) !Selected {
 }
 
 fn forExt(ext: []const u8) !?Selected {
+    for (&zig_specs) |*spec| {
+        for (spec.exts) |choice| {
+            if (std.ascii.eqlIgnoreCase(ext, choice)) return try ensure(spec);
+        }
+    }
     for (&minimal_specs) |*spec| {
         for (spec.exts) |choice| {
             if (std.ascii.eqlIgnoreCase(ext, choice)) return try ensure(spec);
@@ -111,9 +120,10 @@ fn forExt(ext: []const u8) !?Selected {
     return null;
 }
 
-/// compile the minimal-tier queries eagerly so the first .zig/.c open is fast
+/// Compile the compact-tier queries eagerly so the first source open is fast.
 pub fn compileStartupQueries() void {
     if (!enabled) return;
+    for (&zig_specs) |*spec| _ = ensure(spec) catch {};
     for (&minimal_specs) |*spec| _ = ensure(spec) catch {};
 }