refactor: Rewrote the mustache package from scratch.

.envrc

@@ -1,3 +1,3 @@
 use flake
 
-export PATH="$PATH:./vendor/bin"
+export PATH="$PATH:./"

TODOS.md

@@ -15,6 +15,7 @@
 - [ ] ensure sidenote numbers render in display order and not in declaration order.
 - [x] Search up for `thor.json` files.
 - [ ] OpenGraph meta tags — verify all fields match production site
+- [ ] Add Opt-in deflist support.
 - [ ] set opengraph tags / description automatically if unset. (Like hugo does)
 - [ ] Table of contents support.
 - [ ] Nav items should be active when the current page is selected.
@@ -23,6 +24,7 @@
     guide
 - [ ] Search for grammars in multiple places
 - [ ] Download missing grammars.
+- [ ] Add reflection support to mustache / consider rewriting from scratch.
 - [ ] Syntax highlighting in production: CI (`nix build` on ubuntu-latest) has no grammar `.so`s and a machine-specific `QUERIES_PATH` nix store hash, so the deployed site renders unhighlighted. Provide grammars + queries as nix build inputs and pass paths to thor at runtime (env vars/flags).
 - [ ] Durable highlight paths: read `GRAPHS_PATH`/`QUERIES_PATH` from env vars set by the flake instead of hardcoded nix store hashes, so they survive `nix flake update` and let the grammar/query version-mismatch detector fire automatically.
 - [ ] Unit tests for highlighting helpers: `capture_name_to_css`, `escape_html`, `unescape_html`, `extract_query_token`, `helix_version_from_path`.
@@ -35,6 +37,7 @@
 - [ ] Free cmark HTML output (`body_html`) — cmark allocates via C malloc, not the arena, so it leaks per iteration in watch mode
 - [ ] commands
 - [ ] Add spall and find ways to reduce run time. (Getting close to 1/2sec here.)
+- [ ] warn/error when unknown key used in mustache.
 - [ ] Review every file in thor
   - [ ] Review alerts.odin
   - [ ] Review content.odin

content.odin

@@ -217,47 +217,8 @@ strip_extension :: proc(name: string) -> string {
 	return name[:dot]
 }
 
-// copy_static_dir recursively copies all files from static_dir to output_dir.
-// Silently skips if static_dir doesn't exist.
-copy_static_dir :: proc(static_dir: string, output_dir: string) {
-	if !os.exists(static_dir) {
-		return
-	}
-	copy_static_recursive(static_dir, "", output_dir)
-}
-
-copy_static_recursive :: proc(current: string, rel_prefix: string, output_dir: string) {
-	entries, err := os.read_all_directory_by_path(current, context.allocator)
-	if err != nil {
-		log.warnf("thor: cannot read %s: %v", current, err)
-		return
-	}
-	defer os.file_info_slice_delete(entries, context.allocator)
-
-	for entry in entries {
-		rel := rel_prefix == "" ? entry.name : fmt.tprintf("%s/%s", rel_prefix, entry.name)
-		switch entry.type {
-		case .Regular:
-			dest := fmt.tprintf("%s/%s", output_dir, rel)
-			if idx := strings.last_index(dest, "/"); idx >= 0 {
-				if err := os.make_directory_all(dest[:idx]); err != nil && err != .Exist {
-					log.warnf("thor: cannot create %s: %v", dest[:idx], err)
-					continue
-				}
-			}
-			if err := os.copy_file(dest, entry.fullpath); err != nil {
-				log.warnf("thor: cannot copy %s: %v", entry.fullpath, err)
-			}
-		case .Directory:
-			copy_static_recursive(entry.fullpath, rel, output_dir)
-		case .Undetermined, .Symlink, .Named_Pipe, .Socket, .Block_Device, .Character_Device:
-		}
-	}
-}
-
 // copy_assets_dir recursively copies files from assets_dir to output_dir.
-// .css files are minified when .Minify is enabled; all other files are copied
-// verbatim with a warning suggesting they belong in static/.
+// .css files are minified when .Minify is enabled; all other files are copied verbatim.
 // Silently skips if assets_dir doesn't exist.
 copy_assets_dir :: proc(assets_dir: string, output_dir: string, features: bit_set[Feature]) {
 	if !os.exists(assets_dir) {
@@ -299,9 +260,6 @@ copy_assets_recursive :: proc(
 				minified := minify_css(string(data))
 				write_file(dest, minified)
 			} else {
-				if !strings.has_suffix(entry.name, ".css") {
-					log.warnf("thor: %s is not a CSS file; consider moving it to static/", entry.fullpath)
-				}
 				if err := os.copy_file(dest, entry.fullpath); err != nil {
 					log.warnf("thor: cannot copy %s: %v", entry.fullpath, err)
 				}

feed.odin

@@ -2,17 +2,13 @@ package main
 
 import "core:fmt"
 import "core:strings"
-
-WEEKDAYS: [7]string = {"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"}
+import "core:time"
 
 generate_rss :: proc(pages: []Page, config: Site) -> string {
-	parts: [dynamic]string
-	defer delete(parts)
+	sb := strings.builder_make()
 
-	append(
-		&parts,
-		fmt.aprintf(
-			`<?xml version="1.0" encoding="utf-8" standalone="yes"?>
+	strings.write_string(&sb, fmt.aprintf(
+		`<?xml version="1.0" encoding="utf-8" standalone="yes"?>
 <rss version="2.0" xmlns:atom="http://www.w3.org/2005/Atom">
 <channel>
 <title>%s</title>
@@ -20,12 +16,11 @@ generate_rss :: proc(pages: []Page, config: Site) -> string {
 <description>%s</description>
 <language>en-us</language>
 <atom:link href="%s/index.xml" rel="self" type="application/rss+xml"/>`,
-			xml_escape(config.title),
-			config.base_url,
-			xml_escape(config.description),
-			config.base_url,
-		),
-	)
+		xml_escape(config.title),
+		config.base_url,
+		xml_escape(config.description),
+		config.base_url,
+	))
 
 	for page in pages {
 		if page.type == .Home {
@@ -37,10 +32,8 @@ generate_rss :: proc(pages: []Page, config: Site) -> string {
 			pub_date = format_rfc822(page.date)
 		}
 
-		append(
-			&parts,
-			fmt.aprintf(
-				`<item>
+		strings.write_string(&sb, fmt.aprintf(
+			`<item>
 <title>%s</title>
 <link>%s%s</link>
 <pubDate>%s</pubDate>
@@ -48,42 +41,35 @@ generate_rss :: proc(pages: []Page, config: Site) -> string {
 <description>%s</description>
 </item>
 `,
-				xml_escape(page.title),
-				config.base_url,
-				page.permalink,
-				pub_date,
-				config.base_url,
-				page.permalink,
-				xml_escape(page.body_html),
-			),
-		)
+			xml_escape(page.title),
+			config.base_url,
+			page.permalink,
+			pub_date,
+			config.base_url,
+			page.permalink,
+			xml_escape(page.body_html),
+		))
 	}
 
-	append(&parts, "</channel>\n</rss>")
-
-	return strings.join(parts[:], "")
+	strings.write_string(&sb, "</channel>\n</rss>")
+	return strings.to_string(sb)
 }
 
 generate_sitemap :: proc(pages: []Page, base_url: string) -> string {
-	parts: [dynamic]string
-	defer delete(parts)
+	sb := strings.builder_make()
 
-	append(
-		&parts,
-		`<?xml version="1.0" encoding="utf-8" standalone="yes"?>
+	strings.write_string(&sb, `<?xml version="1.0" encoding="utf-8" standalone="yes"?>
 <urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9" xmlns:xhtml="http://www.w3.org/1999/xhtml">
-`,
-	)
+`)
 
 	for page in pages {
 		lastmod := ""
 		if page.date != "" {
 			lastmod = fmt.aprintf("<lastmod>%s</lastmod>", page.date)
 		}
-		append(
-			&parts,
-			fmt.aprintf("<url><loc>%s%s</loc>%s</url>\n", base_url, page.permalink, lastmod),
-		)
+		strings.write_string(&sb, fmt.aprintf(
+			"<url><loc>%s%s</loc>%s</url>\n", base_url, page.permalink, lastmod,
+		))
 	}
 
 	// Posts list page
@@ -97,42 +83,38 @@ generate_sitemap :: proc(pages: []Page, base_url: string) -> string {
 	if posts_lastmod != "" {
 		posts_lm = fmt.aprintf("<lastmod>%s</lastmod>", posts_lastmod)
 	}
-	append(&parts, fmt.aprintf("<url><loc>%s/posts/</loc>%s</url>\n", base_url, posts_lm))
+	strings.write_string(&sb, fmt.aprintf(
+		"<url><loc>%s/posts/</loc>%s</url>\n", base_url, posts_lm,
+	))
 
-	append(&parts, "</urlset>")
-
-	return strings.join(parts[:], "")
+	strings.write_string(&sb, "</urlset>")
+	return strings.to_string(sb)
 }
 
+// TODO: Leaks
 format_rfc822 :: proc(iso: string) -> string {
 	if len(iso) < 19 {
+		// TODO: should indicate error somehow
 		return iso
 	}
 
-	year :=
-		(int(iso[0]) - 0x30) * 1000 +
-		(int(iso[1]) - 0x30) * 100 +
-		(int(iso[2]) - 0x30) * 10 +
-		(int(iso[3]) - 0x30)
-	month := (int(iso[5]) - 0x30) * 10 + (int(iso[6]) - 0x30)
-	day := (int(iso[8]) - 0x30) * 10 + (int(iso[9]) - 0x30)
-	time := iso[11:19]
+	date, offset, _ := time.iso8601_to_time_and_offset(iso)
 
-	// Timezone: -04:00 → -0400
-	tz := "+0000"
-	if len(iso) >= 25 && (iso[19] == '+' || iso[19] == '-') {
-		tz = fmt.tprintf("%c%s%s", iso[19], iso[20:22], iso[23:25])
-	}
+	weekday := fmt.tprintf("%s", time.weekday(date))
+	month := fmt.tprintf("%s", time.month(date))
+	buf: [8]byte
+	t := time.to_string_hms(date, buf[:])
 
-	// Sakamoto's method for day of week (0=Sunday)
-	t := [12]int{0, 3, 2, 5, 0, 3, 5, 1, 4, 6, 2, 4}
-	y := year
-	if month < 3 {
-		y -= 1
-	}
-	dow := (y + y / 4 - y / 100 + y / 400 + t[month - 1] + day) % 7
-
-	return fmt.aprintf("%s, %d %s %d %s %s", WEEKDAYS[dow], day, MONTHS[month - 1], year, time, tz)
+	return fmt.aprintf(
+		"%s, %02d %s %d %s %3d%2d",
+		weekday[:3],
+		time.day(date),
+		month[:3],
+		time.year(date),
+		t,
+		offset / 60,
+		offset % 60,
+	)
 }
 
 xml_escape :: proc(s: string) -> string {

mustache/.gitignore

@@ -1,8 +1 @@
-*/**/.DS_Store
-.DS_Store
-tmp/
-bin/
-*/**/odin-mustache.dSYM/
-*/**/odin-mustache
-*/**/odin-mustache-test.dSYM/
-*/**/odin-mustache-test
+mustache

mustache/.gitmodules

@@ -1,4 +0,0 @@
-[submodule "spec"]
-	path = spec
-	url = git@github.com:mustache/spec.git
-	branch = v1.4.1

mustache/Justfile

@@ -1,15 +0,0 @@
-flags := "-vet -show-timings -strict-style -vet-cast -vet-tabs -vet-using-param -disallow-do -vet-semicolon"
-name := "odin-mustache"
-
-build:
-	@mkdir -p bin
-	odin build . -out:bin/{{name}} -debug {{flags}}
-
-test: build
-	odin test . -out:bin/{{name}}
-
-run: build
-	bin/{{name}} test/template.txt test/data.json test/layout.txt
-
-check:
-	odin check . {{flags}}

mustache/LICENSE

@@ -1,19 +0,0 @@
-Copyright (c) 2025 Benjamin Block
-
-Permission is hereby granted, free of charge, to any person obtaining a copy
-of this software and associated documentation files (the "Software"), to deal
-in the Software without restriction, including without limitation the rights
-to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-copies of the Software, and to permit persons to whom the Software is
-furnished to do so, subject to the following conditions:
-
-The above copyright notice and this permission notice shall be included in all
-copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-SOFTWARE.

mustache/PARTIAL_INDENT.md

@@ -0,0 +1,137 @@
+# Partial Indentation — Problem & Solutions
+
+## Problem
+
+When a partial tag `{{> name}}` is standalone (only non-whitespace on its line), the mustache spec requires that its leading whitespace be treated as indentation and **prepended to each line of the partial source before rendering**.
+
+This is a source-level transformation, not output post-processing. The distinction matters when interpolated content contains newlines:
+
+```
+partial source:  "|\n{{{content}}}\n|\n"
+content value:   "<\n->"
+indent:          " "
+
+Expected output: " |\n <\n->\n |\n"
+```
+
+The line `->` gets NO indent — it comes from expanded content (`<\n->`), not from a partial source line. Post-processing the output would incorrectly indent it.
+
+### Spec tests that require this
+
+- **Standalone Without Previous Line** — indent at start of template
+- **Standalone Without Newline** — indent at end of template
+- **Standalone Indentation** — indent with multi-line interpolated content
+
+3 of 14 tests in `partials.json`. The other 11 (basic lookup, context, recursion, nesting, inline usage, failed lookup, padding) work without indentation handling.
+
+### thor's real usage
+
+Thor's partials (`{{> nav}}`, `{{> footer}}`, `{{>* icon}}`) are typically standalone with indentation. Without indentation handling, HTML output has wrong indentation — ugly but functional since HTML ignores whitespace.
+
+## Solution 1: Store source, re-parse with indent (Recommended)
+
+Add `source: string` to `Template`. When rendering a standalone partial with non-empty indent:
+
+1. Prepend indent to each line of `partial.source`
+2. Re-tokenize + re-parse with `context.temp_allocator`
+3. Render the re-parsed nodes
+
+When indent is empty, render the pre-parsed nodes directly (no re-parse).
+
+### Pros
+- Correct by construction — exactly matches spec ("prepended to each line before rendering")
+- ~20 lines of code
+- Nested partials accumulate indentation naturally
+- No line-start state tracking
+
+### Cons
+- Template gains a `source: string` field
+- Standalone partials with indent get re-parsed at render time (negligible for small fragments)
+
+### Implementation sketch
+
+```odin
+// tokenizer: capture indent during trim_standalone_whitespace
+// for Partial tokens, before stripping left whitespace:
+tokens[i].indent = text[nl+1:]  // capture indentation
+
+// mustache.odin: Template gains source field
+Template :: struct {
+    nodes: [dynamic]Node,
+    source: string,
+}
+
+// parse: store source
+tmpl.source = source
+
+// renderer: re-parse if indent
+case .Partial:
+    pt, found := partials[name]
+    if !found do break
+    if len(node.indent) > 0 {
+        indented := indent_lines(pt.source, node.indent)
+        reparse, err := parse(indented, context.temp_allocator, context.temp_allocator)
+        if err == nil {
+            defer delete(reparse.nodes)
+            render_nodes(reparse.nodes[:], reparse.nodes[:], ctx, partials, b)
+        }
+    } else {
+        render_nodes(pt.nodes[:], pt.nodes[:], ctx, partials, b)
+    }
+```
+
+## Solution 2: Modify text nodes during rendering
+
+Track "at line start" state while rendering the partial's nodes. Insert indent before text-node content that begins a new line. Variables/sections render normally — their output is NOT indented.
+
+### Pros
+- No source storage
+- No re-parsing
+
+### Cons
+- Complex: must track line-start state across nodes
+- Variables producing multi-line output need careful handling (their newlines don't create indented lines)
+- Trailing newline edge case (partial ending with `\n` shouldn't leave trailing indent)
+- Nested partials with accumulated indentation need extra logic
+- ~60+ lines of fiddly code
+
+### Implementation sketch
+
+```odin
+render_partial :: proc(nodes, ctx, partials, b, indent) {
+    at_line_start := true
+    for node in nodes {
+        switch node.kind {
+        case .Text:
+            // Walk text, prepend indent at line starts
+            // Insert indent after each \n
+            // Don't indent after final \n of last text node
+            ...
+            at_line_start = (text ends with \n)
+        case .Variable, .Unescaped:
+            // Render normally — no indent applied to output
+            write_value(b, val, ...)
+            at_line_start = false  // can't know if output ends with \n
+        case .Section, .Inverted:
+            // Complex: nested text nodes need indent too?
+            ...
+        }
+    }
+}
+```
+
+The "can't know if variable output ends with \n" problem makes `at_line_start` unreliable, requiring heuristics or output buffering.
+
+## Adjacent Tag Standalone Detection
+
+**Problem:** When a block-type tag and its close tag are adjacent (no text between them), like `{{<include}}{{/include}}\n`, neither tag is individually detected as standalone. The current check looks at the immediately adjacent token — if it's another tag (not text), the check fails. So the trailing `\n` isn't consumed.
+
+**Affected spec tests:**
+- `~inheritance.json`: "Inherit", "Override parent with newlines"
+- Potentially any `{{<name}}{{/name}}` or `{{#name}}{{/name}}` on its own line
+
+**Solution:** When scanning left/right for the line boundary, skip over adjacent standalone-eligible tags (they're transparent). Two helper procs replace the current inline checks:
+- `check_left(tokens, i)` — scans backwards through adjacent eligible tags until finding text or start of template
+- `check_right(tokens, i)` — scans forwards through adjacent eligible tags until finding text or end of template
+
+Both return `(ok: bool, text_idx: int)` where `text_idx` is the text token to trim (or -1 if none).

mustache/README.md

@@ -1,162 +0,0 @@
-# odin-mustache
-Native implementation of {{mustache}} templates in [Odin](https://odin-lang.org).
-
-https://github.com/benjamindblock/odin-mustache/assets/1155805/7d794861-e308-4132-aaa0-f800392208a4
-
-All features are implemented, except for the ability to change delimiters.
-
-All in tests in the [official mustache spec](https://github.com/mustache/spec) pass successfully (except for the delimiters spec suite).
-
-## Documentation
-
-For more information about mustache, see the [mustache project page](https://mustache.github.io) or the mustache [man](https://mustache.github.io/mustache.5.html) [pages](https://mustache.github.io/mustache.1.html).
-
-View some [example mustache files](https://github.com/mustache/mustache/tree/master/examples) to get an overview.
-
-## Spec
-
-The [mustache-spec](https://github.com/mustache/spec) repo is added as a git submodule for testing purposes. To run tests, ensure that you run `git clone --recursive` and/or `git submodule update` as needed.
-
-## Usage
-
-### CLI Usage
-```
-Usage:
-  odin-mustache [path to template] [path to JSON] [OPTIONAL - layout]
-
-Examples:
-  $ odin-mustache template.txt data.json
-```
-
-### Odin Usage
-#### 1. `render(template: string, data: any, partials: any, allocator := context.allocator)`
-
-Renders a template, provided as a `string`. `data` and `partials` should be *either* a `map[string]...` or a `struct`.
-
-All `map` arguments passed **must** be keyed with `string` type data. When parsing a Mustache template, the text inside a tag (eg. `name` inside `{{name}}`) will be parsed as a `string`.
-
-#### 2. `render_from_filename(filename: string, data: any, partials: any, allocator := context.allocator)`
-
-Renders a template stored in a text file using `data` and `partials` provided.
-
-#### 3. `render_with_json(template: string, json_filename: string, allocator := context.allocator)`
-
-Renders a template `string` using data and partials stored inside a JSON file. `odin-mustache` will handle loading the JSON into a usable format for Mustache to work with.
-
-**NOTE**: The JSON file leverages the following top-level keys:
-```
-"data":      [required]
-"partials":  [optional]
-```
-
-#### 4. `render_from_filename_with_json(filename: string, json_filename: string, allocator := context.allocator)`
-
-Renders a template stored in a text file using data and partials stored inside a JSON file. `odin-mustache` will handle loading the JSON into a usable format for Mustache to work with.
-
-#### Example
-```odin
-input := "Hello, {{name}}!"
-data: map[string]string = {
-    "name" = "St. Charles",
-}
-output, err := render(input, data, context.temp_allocator)
-// => "Hello, St. Charles!"
-```
-
-## Escaping
-`odin-mustache` follows the official mustache HTML escaping rules. That is, if you enclose a variable with two curly brackets, `{{var}}`, the contents are HTML-escaped. For instance, strings like `5 > 2` are converted to `5 > 2`. To use raw characters, use three curly brackets `{{{var}}}`.
-
-## Layouts
-`odin-mustache` supports rendering templates with layouts.
-
-A layout is a regular template with a special function. It accepts **a `{{content}}` tag**. This is where the output of a child template will be inserted. Layouts have access to the same data provided to the regular template.
-
-Layouts can render content in both `{{normal}}` and `{{{literal}}}` tags.
-
-This is helpful for rendering scenarios like websites where the same elements (`<head>`, `<footer>`, etc.) are shared across all pages, each of which has their own page-specific template.
-
-```
-<html>
-  {{{head}}
-  <body>
-    {{{content}}}
-  </body>
-  {{{footer}}
-</html>
-```
-
-### CLI Usage
-```
-Usage:
-  odin-mustache [path to template] [path to JSON] [OPTIONAL - layout]
-
-Examples:
-  $ odin-mustache template.html data.json layout.html
-```
-
-### Odin Usage
-To render a layout in Odin, all four of the above render procedures have `in_layout` and `in_layout_file` variations. These methods will insert the rendered content of a template within the given layout. This is convenient for rendering HTML views inside a larger layout, amongst other use-cases.
-
-The full list of corresponding methods is:
-- `render_in_layout(template: string, data: any, layout: string, partials: any, allocator := context.allocator)`
-- `render_in_layout_file(template: string, data: any, layout_filename: string, partials: any, allocator := context.allocator)`
-- `render_from_filename_in_layout(filename: string, data: any, layout: string, partials: any, allocator := context.allocator)`
-- `render_from_filename_in_layout_file(filename: string, data: any, layout_filename: string, partials: any, allocator := context.allocator)`
-- `render_with_json_in_layout(template: string, json_filename: string, layout: string, allocator := context.allocator)`
-- `render_with_json_in_layout_file(template: string, json_filename: string, layout_filename: string, allocator := context.allocator)`
-- `render_from_filename_with_json_in_layout(filename: string, json_filename: string, layout: string, allocator := context.allocator)`
-- `render_from_filename_with_json_in_layout_file(filename: string, json_filename: string, layout_filename: string, allocator := context.allocator)`
-
-#### Example
-```odin
-template := "Hello, {{name}}."
-data := map[string]string{"name" = "Kilgarvan"}
-layout := `Above >>
-{{content}}
-<< Below`
-
-output, _ := render_in_layout(template, data, layout, allocator := context.temp_allocator)
-fmt.println(output)
-
-// Above >>
-// Hello, Kilgarvan.
-// << Below
-```
-
-## Precompiled Templates
-`odin-mustache` works in two steps:
-1. Lexing and parsing
-2. Rendering with data
-
-If you are rendering the same template multiple times (ex: sending out personalized emails to subscribers), the lexing+parsing step can be performed once to create a compiled template. This compiled template can then be used multiple times with different data.
-
-### Example
-```odin
-src := "Hello, {{name}}!"
-template: Template
-output: string
-data: map[string]string
-partials: map[string]string
-
-lexer := Lexer{src=src, delim=CORE_DEF}
-lexer_parse(&lexer)
-
-data = {"name" = "St. Charles"}
-template = Template{lexer=lexer, data=data, partials=partials}
-output, _ = template_render(&template)
-// => Hello, St. Charles!
-
-data = {"name" = "Edouard"}
-template = Template{lexer=lexer, data=data, partials=partials}
-output, _ = template_render(&template)
-// => Hello, Edouard!
-```
-
-## Future Work
-- Validate JSON keys
-- Better CLI argument parsing
-- Improve error handling and reporting
-- Add optional logging for debugging and performance work
-- Configurable precision for floating point types
-- Add support for changing delimiters
-- Special loop conditionals (eg., checking for the first iteration or last iteration)

mustache/TODOS.md

@@ -0,0 +1,2 @@
+- [ ] Initialize string builder size based on filesize?
+- [ ] Review [whitespace handling code](./tokenizer.odin)

mustache/data.odin

@@ -0,0 +1,221 @@
+package mustache
+
+import "base:runtime"
+import "core:fmt"
+import "core:reflect"
+import "core:strconv"
+import "core:strings"
+
+// effective unwraps union variants and strips Named/Distinct layers,
+// returning the "peeled" any value and its base type info.
+effective :: proc(a: any) -> (val: any, info: ^runtime.Type_Info) {
+	val = a
+	info = nil
+	if val == nil do return
+
+	ti := type_info_of(val.id)
+	if ti == nil do return
+
+	base := runtime.type_info_base(ti)
+
+	if _, ok := base.variant.(runtime.Type_Info_Union); ok {
+		variant := reflect.get_union_variant(val)
+		if variant == nil do return {}, nil
+		return effective(variant)
+	}
+
+	info = base
+	return
+}
+
+// lookup_in resolves a single key in a container (struct or map).
+// Returns found=false if the key doesn't exist or the container is not a struct/map.
+lookup_in :: proc(container: any, key: string) -> (result: any, found: bool) {
+	if container == nil do return nil, false
+
+	val, info := effective(container)
+	if info == nil do return nil, false
+
+	#partial switch v in info.variant {
+	case runtime.Type_Info_Struct:
+		result = reflect.struct_field_value_by_name(val, key, allow_using = true)
+		found = result != nil
+		return
+
+	case runtime.Type_Info_Map:
+		mi := v
+		rm_ptr := (^runtime.Raw_Map)(val.data)
+		if rm_ptr.len == 0 do return nil, false
+
+		k := key
+		seed := runtime.map_seed(rm_ptr^)
+		h := mi.map_info.key_hasher(&k, seed)
+		value_ptr := runtime.__dynamic_map_get(rm_ptr, mi.map_info, h, &k)
+		if value_ptr == nil do return nil, false
+
+		result = any{value_ptr, mi.value.id}
+		found = true
+		return
+
+	case:
+		return nil, false
+	}
+	return
+}
+
+// resolve_name resolves a (possibly dotted) name from the context stack.
+// The first segment walks the stack top-to-bottom; remaining segments
+// resolve against the prior result only.
+resolve_name :: proc(name: string, ctx: []any) -> any {
+	if name == "." {
+		if len(ctx) > 0 do return ctx[len(ctx) - 1]
+		return nil
+	}
+
+	parts: [16]string
+	part_count := 0
+	start := 0
+	for i in 0 ..< len(name) {
+		if name[i] == '.' {
+			if part_count < len(parts) {
+				parts[part_count] = name[start:i]
+				part_count += 1
+			}
+			start = i + 1
+		}
+	}
+	if part_count < len(parts) {
+		parts[part_count] = name[start:]
+		part_count += 1
+	}
+
+	if part_count == 0 do return nil
+	dot_parts := parts[:part_count]
+
+	result: any = nil
+	found := false
+	for i := len(ctx) - 1; i >= 0; i -= 1 {
+		result, found = lookup_in(ctx[i], dot_parts[0])
+		if found do break
+	}
+
+	if !found do return nil
+	if len(dot_parts) == 1 do return result
+
+	for i := 1; i < len(dot_parts); i += 1 {
+		result, found = lookup_in(result, dot_parts[i])
+		if !found do return nil
+	}
+
+	return result
+}
+
+// is_truthy checks mustache truthiness.
+is_truthy :: proc(a: any) -> bool {
+	if a == nil do return false
+
+	val, info := effective(a)
+	if info == nil do return false
+	if reflect.is_nil(val) do return false
+
+	#partial switch _ in info.variant {
+	case runtime.Type_Info_Slice, runtime.Type_Info_Dynamic_Array, runtime.Type_Info_Map:
+		return reflect.length(val) > 0
+	case:
+		return true
+	}
+}
+
+// list_info returns element type info, count, and data pointer for a list value.
+// Returns elem_info=nil if the value is not a list.
+list_info :: proc(a: any) -> (elem_info: ^runtime.Type_Info, count: int, data: rawptr) {
+	val, info := effective(a)
+	if info == nil do return nil, 0, nil
+
+	#partial switch v in info.variant {
+	case runtime.Type_Info_Slice:
+		raw := (^runtime.Raw_Slice)(val.data)^
+		return v.elem, raw.len, raw.data
+	case runtime.Type_Info_Dynamic_Array:
+		raw := (^runtime.Raw_Dynamic_Array)(val.data)^
+		return v.elem, raw.len, raw.data
+	case runtime.Type_Info_Array:
+		return v.elem, v.count, val.data
+	case:
+		return nil, 0, nil
+	}
+}
+
+// any_to_string converts a scalar value to a string using the temp allocator.
+any_to_string :: proc(a: any) -> string {
+	if a == nil do return ""
+	val, _ := effective(a)
+
+	switch v in val {
+	case string:
+		return v
+	case bool:
+		return "true" if v else "false"
+	case i64:
+		return fmt.tprintf("%d", v)
+	case f64:
+		// return fmt.tprintf("%.3f", v)
+		return format_f64(v)
+	case int:
+		return fmt.tprintf("%d", v)
+	case:
+		return ""
+	}
+}
+
+// format_f64 produces the shortest string that round-trips to the same f64.
+// Works around Odin's strconv not implementing shortest representation.
+format_f64 :: proc(v: f64) -> string {
+	buf: [64]byte
+	for prec in 1 ..= 17 {
+		s := strconv.write_float(buf[:], v, 'g', prec, 64)
+		if len(s) > 0 && s[0] == '+' do s = s[1:]
+		parsed, ok := strconv.parse_f64(s)
+		if ok && parsed == v {
+			return strings.clone(s, context.temp_allocator)
+		}
+	}
+	s := strconv.write_float(buf[:], v, 'g', -1, 64)
+	if len(s) > 0 && s[0] == '+' do s = s[1:]
+	return strings.clone(s, context.temp_allocator)
+}
+
+// write_value stringifies a value and writes it to the builder,
+// optionally HTML-escaped.
+write_value :: proc(b: ^strings.Builder, a: any, escape: bool) {
+	s := any_to_string(a)
+	if len(s) == 0 do return
+
+	if !escape {
+		strings.write_string(b, s)
+		return
+	}
+
+	start := 0
+	for i in 0 ..< len(s) {
+		switch s[i] {
+		case '&', '<', '>', '"':
+			if i > start do strings.write_string(b, s[start:i])
+			switch s[i] {
+			case '&':
+				strings.write_string(b, "&amp;")
+			case '<':
+				strings.write_string(b, "&lt;")
+			case '>':
+				strings.write_string(b, "&gt;")
+			case '"':
+				strings.write_string(b, "&quot;")
+			}
+			start = i + 1
+		}
+	}
+	if start < len(s) {
+		strings.write_string(b, s[start:])
+	}
+}
+

mustache/examples/hello/hello.mustache

@@ -1,11 +0,0 @@
-Hello, {{name}}!
-
-Languages you know:
-{{#languages}}
-  - {{.}}
-{{/languages}}
-
-{{#show_footer}}
----
-Rendered with odin-mustache.
-{{/show_footer}}

mustache/examples/hello/hello.odin

@@ -1,28 +0,0 @@
-package main
-
-import "core:fmt"
-import "core:os"
-
-import mustache "../.."
-
-Person :: struct {
-	name:        string,
-	languages:   []string,
-	show_footer: bool,
-}
-
-main :: proc() {
-	data := Person{
-		name      = "World",
-		languages = {"Odin", "C", "Rust"},
-		show_footer = true,
-	}
-
-	result, err := mustache.render_from_filename("hello.mustache", data)
-	if err != nil {
-		fmt.eprintfln("render error: %v", err)
-		os.exit(1)
-	}
-
-	fmt.print(result)
-}

mustache/spec_test.odin

@@ -0,0 +1,127 @@
+#+test
+package mustache
+
+import "core:encoding/json"
+import "core:fmt"
+import "core:os"
+import "core:testing"
+
+run_spec_file :: proc(t: ^testing.T, path: string) {
+	raw_data, err := os.read_entire_file(path, context.allocator)
+	if err != nil {
+		testing.expectf(t, false, "Failed to read %s", path)
+		return
+	}
+	defer delete(raw_data)
+
+	value, jerr := json.parse(raw_data)
+	if jerr != .None {
+		testing.expectf(t, false, "JSON parse error in %s: %v", path, jerr)
+		return
+	}
+	defer json.destroy_value(value)
+
+	root := value.(json.Object)
+	tests := root["tests"].(json.Array)
+
+	passed := 0
+	failed := 0
+
+	for tv in tests {
+		test := tv.(json.Object)
+		name := test["name"].(string)
+		template_src := test["template"].(string)
+		expected := test["expected"].(string)
+
+		if run_one_test(t, test, name, template_src, expected) {
+			passed += 1
+		} else {
+			failed += 1
+		}
+	}
+
+	if failed > 0 {
+		testing.fail(t)
+	}
+	fmt.printfln("  %s: %d/%d passed", path, passed, passed + failed)
+}
+
+run_one_test :: proc(
+	t: ^testing.T,
+	test: json.Object,
+	name, template_src, expected: string,
+) -> bool {
+	partials := make_map(map[string]Template, context.temp_allocator)
+
+	if "partials" in test {
+		p_obj, ok := test["partials"].(json.Object)
+		assert(ok)
+		for pname, pval in p_obj {
+			psrc, ok := pval.(string)
+			assert(ok)
+
+			pt, perr := parse(psrc, context.temp_allocator)
+			if perr != nil {
+				testing.expectf(t, false, "[%s] partial '%s' parse error", name, pname)
+				return false
+			}
+			partials[pname] = pt
+		}
+	}
+
+	tmpl, terr := parse(template_src, context.temp_allocator)
+	if terr != nil {
+		testing.expectf(t, false, "[%s] template parse error", name)
+		return false
+	}
+	defer delete(tmpl.nodes)
+
+	result, rerr := render(tmpl, test["data"], partials)
+	if rerr != nil {
+		testing.expectf(t, false, "[%s] render error", name)
+		return false
+	}
+	defer delete(result)
+
+	if result != expected {
+		testing.expectf(t, false, "[%s]\n  got:      %q\n  expected: %q", name, result, expected)
+		return false
+	}
+	return true
+}
+
+@(test)
+spec_interpolation :: proc(t: ^testing.T) {
+	run_spec_file(t, "spec/specs/interpolation.json")
+}
+
+@(test)
+spec_sections :: proc(t: ^testing.T) {
+	run_spec_file(t, "spec/specs/sections.json")
+}
+
+@(test)
+spec_inverted :: proc(t: ^testing.T) {
+	run_spec_file(t, "spec/specs/inverted.json")
+}
+
+@(test)
+spec_comments :: proc(t: ^testing.T) {
+	run_spec_file(t, "spec/specs/comments.json")
+}
+
+@(test)
+spec_partials :: proc(t: ^testing.T) {
+	run_spec_file(t, "spec/specs/partials.json")
+}
+
+@(test)
+spec_dynamic_names :: proc(t: ^testing.T) {
+	run_spec_file(t, "spec/specs/dynamic-names.json")
+}
+
+@(test)
+spec_inheritance :: proc(t: ^testing.T) {
+	run_spec_file(t, "spec/specs/~inheritance.json")
+}
+

mustache/test/data.json

@@ -1,5 +0,0 @@
-{
-  data: {
-    name: "Kilgarvan"
-  }
-}

mustache/test/layout.txt

@@ -1,3 +0,0 @@
-Begin layout >>
-{{content}}
-<< End layout

mustache/test/template.txt

@@ -1 +0,0 @@
-Hello, this is {{name}}.

mustache/tokenizer.odin

@@ -0,0 +1,227 @@
+package mustache
+
+import "core:strings"
+
+Token_Kind :: enum {
+	Text,
+	Variable,
+	Unescaped,
+	Section_Open,
+	Inverted_Open,
+	Section_Close,
+	Comment,
+	Partial,
+	Parent,
+	Block_Open,
+}
+
+Token :: struct {
+	kind:       Token_Kind,
+	value:      string,
+	is_dynamic: bool,
+	pos:        int,
+}
+
+tokenize :: proc(
+	src: string,
+	allocator := context.allocator,
+) -> (
+	tokens: [dynamic]Token,
+	err: Render_Error,
+) {
+	tokens = make([dynamic]Token, 0, 8, allocator)
+
+	i := 0
+	text_start := 0
+
+	for i < len(src) {
+		if src[i] == '{' && i + 1 < len(src) && src[i + 1] == '{' {
+			if i > text_start {
+				append(&tokens, Token{kind = .Text, value = src[text_start:i], pos = text_start})
+			}
+
+			tag_pos := i
+
+			if i + 2 < len(src) && src[i + 2] == '{' {
+				content_start := i + 3
+				idx := strings.index(src[content_start:], "}}}")
+				if idx < 0 {
+					return tokens, Syntax_Error {
+						msg = "unclosed triple mustache '{{{'",
+						pos = tag_pos,
+					}
+				}
+				close := content_start + idx
+				key := strings.trim_space(src[content_start:close])
+				append(&tokens, Token{kind = .Unescaped, value = key, pos = tag_pos})
+				i = close + 3
+				text_start = i
+			} else {
+				content_start := i + 2
+				sigil: byte = 0
+				if content_start < len(src) {
+					sigil = src[content_start]
+				}
+
+				kind: Token_Kind
+				key_start := content_start
+
+				switch sigil {
+				case '&':
+					kind = .Unescaped; key_start = content_start + 1
+				case '#':
+					kind = .Section_Open; key_start = content_start + 1
+				case '^':
+					kind = .Inverted_Open; key_start = content_start + 1
+				case '/':
+					kind = .Section_Close; key_start = content_start + 1
+				case '!':
+					kind = .Comment; key_start = content_start + 1
+				case '>':
+					kind = .Partial; key_start = content_start + 1
+				case '<':
+					kind = .Parent; key_start = content_start + 1
+				case '$':
+					kind = .Block_Open; key_start = content_start + 1
+				case:
+					kind = .Variable
+				}
+
+				close_idx := strings.index(src[key_start:], "}}")
+				if close_idx < 0 {
+					return tokens, Syntax_Error{msg = "unclosed tag '{{'", pos = tag_pos}
+				}
+				close := key_start + close_idx
+
+				content := src[key_start:close]
+
+				if kind == .Comment {
+					append(&tokens, Token{kind = .Comment, value = content, pos = tag_pos})
+				} else if kind == .Partial {
+					trimmed := strings.trim_space(content)
+					is_dyn := false
+					if len(trimmed) > 0 && trimmed[0] == '*' {
+						is_dyn = true
+						trimmed = strings.trim_space(trimmed[1:])
+					}
+					append(
+						&tokens,
+						Token {
+							kind = .Partial,
+							value = trimmed,
+							is_dynamic = is_dyn,
+							pos = tag_pos,
+						},
+					)
+				} else {
+					append(
+						&tokens,
+						Token{kind = kind, value = strings.trim_space(content), pos = tag_pos},
+					)
+				}
+
+				i = close + 2
+				text_start = i
+			}
+		} else {
+			i += 1
+		}
+	}
+
+	if i > text_start {
+		append(&tokens, Token{kind = .Text, value = src[text_start:i], pos = text_start})
+	}
+
+	trim_standalone_whitespace(&tokens)
+	return tokens, nil
+}
+
+// ---------------------------------------------------------------------------
+// Standalone whitespace handling
+// ---------------------------------------------------------------------------
+
+trim_standalone_whitespace :: proc(tokens: ^[dynamic]Token) {
+	for i := 0; i < len(tokens); i += 1 {
+		if !should_trim_whitespace(tokens[i].kind) do continue
+
+		left_ok, left_idx := check_left(tokens[:], i)
+		right_ok, right_idx := check_right(tokens[:], i)
+
+		if !left_ok || !right_ok do continue
+
+		if left_idx >= 0 {
+			text := tokens[left_idx].value
+			nl := strings.last_index_byte(text, '\n')
+			tokens[left_idx].value = text[:nl+1] if nl >= 0 else ""
+		}
+
+		if right_idx >= 0 {
+			text := tokens[right_idx].value
+			nl := strings.index_byte(text, '\n')
+			tokens[right_idx].value = text[nl+1:] if nl >= 0 else ""
+		}
+	}
+}
+
+check_left :: proc(tokens: []Token, i: int) -> (ok: bool, text_idx: int) {
+	j := i - 1
+	for j >= 0 {
+		if tokens[j].kind == .Text {
+			text := tokens[j].value
+			if len(text) == 0 {
+				j -= 1
+				continue
+			}
+			nl := strings.last_index_byte(text, '\n')
+			if nl >= 0 {
+				return strings.trim_space(text[nl+1:]) == "", j
+			}
+			if j == 0 {
+				return strings.trim_space(text) == "", j
+			}
+			return false, -1
+		} else if should_trim_whitespace(tokens[j].kind) {
+			j -= 1
+		} else {
+			return false, -1
+		}
+	}
+	return true, -1
+}
+
+check_right :: proc(tokens: []Token, i: int) -> (ok: bool, text_idx: int) {
+	j := i + 1
+	for j < len(tokens) {
+		if tokens[j].kind == .Text {
+			text := tokens[j].value
+			if len(text) == 0 {
+				j += 1
+				continue
+			}
+			nl := strings.index_byte(text, '\n')
+			if nl >= 0 {
+				return strings.trim_space(text[:nl]) == "", j
+			}
+			if j == len(tokens) - 1 {
+				return strings.trim_space(text) == "", j
+			}
+			return false, -1
+		} else if should_trim_whitespace(tokens[j].kind) {
+			j += 1
+		} else {
+			return false, -1
+		}
+	}
+	return true, -1
+}
+
+should_trim_whitespace :: proc(kind: Token_Kind) -> bool {
+	switch kind {
+	case .Section_Open, .Inverted_Open, .Section_Close, .Comment, .Partial, .Parent, .Block_Open:
+		return true
+	case .Text, .Variable, .Unescaped:
+		return false
+	}
+	return false
+}
+

mustache_test.odin

@@ -10,7 +10,8 @@ test_simple_substitution :: proc(t: ^testing.T) {
 	data := map[string]string {
 		"name" = "World",
 	}
-	result, err := mustache.render("Hello, {{name}}!", data)
+	tpl, _ := mustache.parse("Hello, {{name}}!")
+	result, err := mustache.render(tpl, data)
 	testing.expect(t, err == nil)
 	testing.expect(t, result == "Hello, World!")
 }
@@ -20,7 +21,8 @@ test_bool_section :: proc(t: ^testing.T) {
 	data := map[string]bool {
 		"show" = true,
 	}
-	result, err := mustache.render("{{#show}}visible{{/show}}", data)
+	tpl, _ := mustache.parse("{{#show}}visible{{/show}}")
+	result, err := mustache.render(tpl, data)
 	testing.expect(t, err == nil)
 	testing.expect(t, result == "visible")
 }
@@ -30,7 +32,8 @@ test_inverted_section :: proc(t: ^testing.T) {
 	data := map[string]bool {
 		"show" = false,
 	}
-	result, err := mustache.render("{{^show}}hidden{{/show}}", data)
+	tpl, _ := mustache.parse("{{^show}}hidden{{/show}}")
+	result, err := mustache.render(tpl, data)
 	testing.expect(t, err == nil)
 	testing.expect(t, result == "hidden")
 }
@@ -40,7 +43,8 @@ test_unescaped :: proc(t: ^testing.T) {
 	data := map[string]string {
 		"html" = "<b>bold</b>",
 	}
-	result, err := mustache.render("{{{html}}}", data)
+	tpl, _ := mustache.parse("{{{html}}}")
+	result, err := mustache.render(tpl, data)
 	testing.expect(t, err == nil)
 	testing.expect(t, result == "<b>bold</b>")
 }
@@ -55,7 +59,8 @@ test_array_iteration :: proc(t: ^testing.T) {
 	data := map[string][dynamic]map[string]string {
 		"items" = items,
 	}
-	result, err := mustache.render("{{#items}}{{name}} {{/items}}", data)
+	tpl, _ := mustache.parse("{{#items}}{{name}} {{/items}}")
+	result, err := mustache.render(tpl, data)
 	testing.expect(t, err == nil)
 	testing.expect(t, result == "Alice Bob ")
 }
@@ -65,10 +70,12 @@ test_partial :: proc(t: ^testing.T) {
 	data := map[string]string {
 		"name" = "Test",
 	}
-	partials := map[string]string {
-		"greeting" = "Hello, {{name}}!",
+	greeting_tpl, _ := mustache.parse("Hello, {{name}}!")
+	partials := map[string]mustache.Template {
+		"greeting" = greeting_tpl,
 	}
-	result, err := mustache.render("{{>greeting}}", data, partials)
+	main_tpl, _ := mustache.parse("{{>greeting}}")
+	result, err := mustache.render(main_tpl, data, partials)
 	testing.expect(t, err == nil)
 	testing.expect(t, result == "Hello, Test!")
 }
@@ -81,7 +88,8 @@ test_mixed_types :: proc(t: ^testing.T) {
 		"date"       = "17 Jul 2025",
 	}
 
-	result, err := mustache.render("{{site_title}}: {{#has_date}}{{date}}{{/has_date}}", data)
+	tpl, _ := mustache.parse("{{site_title}}: {{#has_date}}{{date}}{{/has_date}}")
+	result, err := mustache.render(tpl, data)
 	testing.expect(t, err == nil)
 	testing.expect(t, result == "One Idiot Developer: 17 Jul 2025")
 }
@@ -96,19 +104,8 @@ test_nested_context :: proc(t: ^testing.T) {
 		"page"       = page,
 	}
 
-	result, err := mustache.render("{{site_title}}: {{#page}}{{title}}{{/page}}", data)
+	tpl, _ := mustache.parse("{{site_title}}: {{#page}}{{title}}{{/page}}")
+	result, err := mustache.render(tpl, data)
 	testing.expect(t, err == nil)
 	testing.expect(t, result == "One Idiot Developer: My Post")
 }
-
-@(test)
-test_layout :: proc(t: ^testing.T) {
-	layout := `<html><body>{{{content}}}</body></html>`
-	template := "<p>Hello!</p>"
-	data := map[string]string{}
-
-	result, err := mustache.render_in_layout(template, data, layout)
-	testing.expect(t, err == nil)
-	testing.expect(t, result == "<html><body><p>Hello!</p></body></html>")
-}
-

render.odin

@@ -3,24 +3,13 @@ package main
 
 import "mustache"
 
+import "core:encoding/json"
 import "core:fmt"
+import "core:log"
 import "core:os"
 import "core:strings"
-
-MONTHS: [12]string = {
-	"Jan",
-	"Feb",
-	"Mar",
-	"Apr",
-	"May",
-	"Jun",
-	"Jul",
-	"Aug",
-	"Sep",
-	"Oct",
-	"Nov",
-	"Dec",
-}
+import "core:time"
+import "core:time/datetime"
 
 Page_Context :: struct {
 	permalink:    string,
@@ -36,9 +25,40 @@ Year_Section :: struct {
 	posts: [dynamic]Page_Context,
 }
 
-Year_Slice :: struct {
-	year:  string,
-	posts: []Page_Context,
+Base_Data :: struct {
+	now:            datetime.DateTime,
+	author:         string,
+	params:         json.Value,
+	body:           string,
+	title:          string,
+	og_site_name:   string,
+	og_description: string,
+	og_image:       string,
+	og_url:         string,
+	og_title:       string,
+	og_type:        string,
+	is_article:     bool,
+}
+
+Page_Data :: struct {
+	using base:   Base_Data,
+	page_title:   string,
+	has_date:     bool,
+	date_iso:     string,
+	date_display: string,
+	is_post:      bool,
+	og_section:   string,
+	og_published: string,
+}
+
+Home_Data :: struct {
+	using base: Base_Data,
+	list_pages: [dynamic]Page_Context,
+}
+
+Posts_Data :: struct {
+	using base:    Base_Data,
+	year_sections: [dynamic]Year_Section,
 }
 
 build_page_context :: proc(page: Page) -> Page_Context {
@@ -84,9 +104,52 @@ og_type :: proc(is_article: bool) -> string {
 	return "website"
 }
 
+load_template :: proc(layouts_dir: string, name: string) -> mustache.Template {
+	data, _ := os.read_entire_file_from_path(
+		fmt.tprintf("%s/%s", layouts_dir, name),
+		context.allocator,
+	)
+	tpl, err := mustache.parse(string(data))
+	if err != nil {
+		log.warnf("thor: failed to parse template %s: %v", name, err)
+	}
+	return tpl
+}
+
+render_template :: proc(
+	content_tpl: mustache.Template,
+	data: any,
+	partials: map[string]mustache.Template,
+) -> string {
+	result, err := mustache.render(content_tpl, data, partials)
+	if err != nil {
+		fmt.eprintfln("thor: mustache error: %v", err)
+		return ""
+	}
+	return result
+}
+
 render_site :: proc(pages: []Page, config: Site) {
 	sort_pages_by_date(pages)
 
+	// Load shared resources once
+	partials := load_partials(config.layouts_dir)
+	partials["base"] = load_template(config.layouts_dir, "base.html")
+	post_tpl := load_template(config.layouts_dir, "post.html")
+
+	now, ok := time.time_to_datetime(time.now())
+	assert(ok)
+
+	// Build base data once
+	base := Base_Data {
+		now            = now,
+		author         = config.author,
+		params         = config.params,
+		og_site_name   = config.title,
+		og_description = config.description,
+		og_image       = fmt.tprintf("%s/avatar.jpg", config.base_url),
+	}
+
 	// Find home page
 	home: Page
 	has_home := false
@@ -103,7 +166,7 @@ render_site :: proc(pages: []Page, config: Site) {
 		if page.type == .Home {
 			continue
 		}
-		html := render_page_html(page, config)
+		html := render_page_html(page, config, post_tpl, partials, base)
 		if .Minify in config.features {
 			html = minify_html(html)
 		}
@@ -112,7 +175,8 @@ render_site :: proc(pages: []Page, config: Site) {
 
 	// Render home page
 	if has_home {
-		home_html := render_home_html(home, pages, config)
+		home_tpl := load_template(config.layouts_dir, "home.html")
+		home_html := render_home_html(home, pages, config, home_tpl, partials, base)
 		if .Minify in config.features {
 			home_html = minify_html(home_html)
 		}
@@ -120,7 +184,8 @@ render_site :: proc(pages: []Page, config: Site) {
 	}
 
 	// Render posts list page
-	posts_html := render_posts_html(pages, config)
+	posts_tpl := load_template(config.layouts_dir, "posts_list.html")
+	posts_html := render_posts_html(pages, config, posts_tpl, partials, base)
 	if .Minify in config.features {
 		posts_html = minify_html(posts_html)
 	}
@@ -134,10 +199,7 @@ render_site :: proc(pages: []Page, config: Site) {
 	sitemap := generate_sitemap(pages, config.base_url)
 	write_file(fmt.tprintf("%s/sitemap.xml", config.output_dir), sitemap)
 
-	// Copy static directory (favicon, CSS, images, etc.)
-	copy_static_dir(config.static_dir, config.output_dir)
-
-	// Copy and maybe minify assets directory
+	// Copy and optionally minify assets directory
 	copy_assets_dir(config.assets_dir, config.output_dir, config.features)
 
 	// Generate robots.txt
@@ -151,58 +213,109 @@ render_site :: proc(pages: []Page, config: Site) {
 	fmt.printfln("Rendered %d pages to %s", total, config.output_dir)
 }
 
-render_page_html :: proc(page: Page, config: Site) -> string {
+render_page_html :: proc(
+	page: Page,
+	config: Site,
+	content_tpl: mustache.Template,
+	partials: map[string]mustache.Template,
+	base: Base_Data,
+) -> string {
 	is_article := page.type == .Post
-
-	data := map[string]any {
-		"title"          = fmt.tprintf("%s | %s", page.title, config.title),
-		"page_title"     = page.title,
-		"body_html"      = page.body_html,
-		"has_date"       = page.date != "",
-		"date_iso"       = page.date,
-		"date_display"   = format_date(page.date),
-		"is_post"        = is_article,
-		"year"           = "2026",
-		"author"         = config.author,
-		"params"         = config.params,
-		"og_url"         = fmt.tprintf("%s%s", config.base_url, page.permalink),
-		"og_site_name"   = config.title,
-		"og_title"       = strip_html_tags(page.title),
-		"og_description" = config.description,
-		"og_type"        = og_type(is_article),
-		"is_article"     = is_article,
-		"og_section"     = "posts",
-		"og_published"   = page.date,
-		"og_image"       = fmt.tprintf("%s/avatar.jpg", config.base_url),
+	data := Page_Data {
+		base = base,
 	}
-
-	partials := load_partials(config.layouts_dir)
-
-	post_tpl, _ := os.read_entire_file_from_path(
-		fmt.tprintf("%s/post.html", config.layouts_dir),
-		context.allocator,
-	)
-	base_tpl, _ := os.read_entire_file_from_path(
-		fmt.tprintf("%s/base.html", config.layouts_dir),
-		context.allocator,
-	)
-
-	result, err := mustache.render_in_layout(string(post_tpl), data, string(base_tpl), partials)
-	if err != nil {
-		fmt.eprintfln("thor: mustache error rendering page: %v", err)
-		return ""
-	}
-	return result
+	data.title = fmt.tprintf("%s | %s", page.title, config.title)
+	data.page_title = page.title
+	data.body = page.body_html
+	data.has_date = page.date != ""
+	data.date_iso = page.date
+	data.date_display = format_date(page.date)
+	data.is_post = is_article
+	data.og_url = fmt.tprintf("%s%s", config.base_url, page.permalink)
+	data.og_title = strip_html_tags(page.title)
+	data.og_type = og_type(is_article)
+	data.is_article = is_article
+	data.og_section = "posts"
+	data.og_published = page.date
+	return render_template(content_tpl, data, partials)
 }
 
-load_partials :: proc(layouts_dir: string) -> map[string]string {
-	partials: map[string]string
+render_home_html :: proc(
+	home: Page,
+	pages: []Page,
+	config: Site,
+	content_tpl: mustache.Template,
+	partials: map[string]mustache.Template,
+	base: Base_Data,
+) -> string {
+	list_pages := make([dynamic]Page_Context)
+	defer delete(list_pages)
+	for page in pages {
+		if page.type == .Home {
+			continue
+		}
+		append(&list_pages, build_page_context(page))
+	}
+
+	data := Home_Data {
+		base = base,
+	}
+	data.title = config.title
+	data.body = home.body_html
+	data.list_pages = list_pages
+	data.og_url = fmt.tprintf("%s/", config.base_url)
+	data.og_title = config.title
+	data.og_type = "website"
+	data.is_article = false
+	return render_template(content_tpl, data, partials)
+}
+
+render_posts_html :: proc(
+	pages: []Page,
+	config: Site,
+	content_tpl: mustache.Template,
+	partials: map[string]mustache.Template,
+	base: Base_Data,
+) -> string {
+	year_sections := make([dynamic]Year_Section)
+	defer delete(year_sections)
+	current_year := ""
+	for page in pages {
+		if page.type != .Post {
+			continue
+		}
+		year := get_year(page.date)
+		if year != current_year {
+			append(&year_sections, Year_Section{year = year})
+			current_year = year
+		}
+		append(&year_sections[len(year_sections) - 1].posts, build_page_context(page))
+	}
+
+	data := Posts_Data {
+		base = base,
+	}
+	data.title = fmt.tprintf("Posts | %s", config.title)
+	data.year_sections = year_sections
+	data.og_url = fmt.tprintf("%s/posts/", config.base_url)
+	data.og_title = "Posts"
+	data.og_type = "website"
+	data.is_article = false
+	return render_template(content_tpl, data, partials)
+}
+
+load_partials :: proc(layouts_dir: string) -> map[string]mustache.Template {
+	partials: map[string]mustache.Template
 	partials_dir := fmt.tprintf("%s/partials", layouts_dir)
 	load_partials_recursive(&partials, partials_dir, "")
 	return partials
 }
 
-load_partials_recursive :: proc(partials: ^map[string]string, base_dir: string, rel_prefix: string) {
+load_partials_recursive :: proc(
+	partials: ^map[string]mustache.Template,
+	base_dir: string,
+	rel_prefix: string,
+) {
 	entries, err := os.read_all_directory_by_path(base_dir, context.allocator)
 	if err != nil {
 		return
@@ -223,7 +336,11 @@ load_partials_recursive :: proc(partials: ^map[string]string, base_dir: string,
 			}
 			data, ok := os.read_entire_file_from_path(entry.fullpath, context.allocator)
 			if ok == nil {
-				partials[key] = string(data)
+				tpl, perr := mustache.parse(string(data))
+				if perr != nil {
+					log.warnf("thor: failed to parse partial %s: %v", key, perr)
+				}
+				partials[key] = tpl
 			}
 		case .Directory:
 			sub_prefix := entry.name
@@ -235,121 +352,12 @@ load_partials_recursive :: proc(partials: ^map[string]string, base_dir: string,
 	}
 }
 
-render_home_html :: proc(home: Page, pages: []Page, config: Site) -> string {
-	list_pages := make([dynamic]Page_Context)
-	defer delete(list_pages)
-	for page in pages {
-		if page.type == .Home {
-			continue
-		}
-		append(&list_pages, build_page_context(page))
-	}
-
-	data := map[string]any {
-		"title"          = config.title,
-		"home_body"      = home.body_html,
-		"list_pages"     = list_pages[:],
-		"year"           = "2026",
-		"author"         = config.author,
-		"params"         = config.params,
-		"og_url"         = fmt.tprintf("%s/", config.base_url),
-		"og_site_name"   = config.title,
-		"og_title"       = config.title,
-		"og_description" = config.description,
-		"og_type"        = "website",
-		"is_article"     = false,
-		"og_image"       = fmt.tprintf("%s/avatar.jpg", config.base_url),
-	}
-
-	partials := load_partials(config.layouts_dir)
-
-	home_tpl, _ := os.read_entire_file_from_path(
-		fmt.tprintf("%s/home.html", config.layouts_dir),
-		context.allocator,
-	)
-	base_tpl, _ := os.read_entire_file_from_path(
-		fmt.tprintf("%s/base.html", config.layouts_dir),
-		context.allocator,
-	)
-
-	result, err := mustache.render_in_layout(string(home_tpl), data, string(base_tpl), partials)
-	if err != nil {
-		fmt.eprintfln("thor: mustache error: %v", err)
-		return ""
-	}
-	return result
-}
-
-render_posts_html :: proc(pages: []Page, config: Site) -> string {
-	// Group posts by year
-	year_sections := make([dynamic]Year_Section)
-	defer delete(year_sections)
-	current_year := ""
-	for page in pages {
-		if page.type != .Post {
-			continue
-		}
-		year := get_year(page.date)
-		if year != current_year {
-			append(&year_sections, Year_Section{year = year})
-			current_year = year
-		}
-		append(&year_sections[len(year_sections) - 1].posts, build_page_context(page))
-	}
-	// Convert [dynamic]Page_Context slices to []Page_Context for mustache
-	year_slices := make([dynamic]Year_Slice)
-	defer delete(year_slices)
-	for section in year_sections {
-		append(&year_slices, Year_Slice{year = section.year, posts = section.posts[:]})
-	}
-
-	data := map[string]any {
-		"title"          = fmt.tprintf("Posts | %s", config.title),
-		"year_sections"  = year_slices[:],
-		"year"           = "2026",
-		"author"         = config.author,
-		"params"         = config.params,
-		"og_url"         = fmt.tprintf("%s/posts/", config.base_url),
-		"og_site_name"   = config.title,
-		"og_title"       = "Posts",
-		"og_description" = config.description,
-		"og_type"        = "website",
-		"is_article"     = false,
-		"og_image"       = fmt.tprintf("%s/avatar.jpg", config.base_url),
-	}
-
-	partials := load_partials(config.layouts_dir)
-
-	posts_tpl, _ := os.read_entire_file_from_path(
-		fmt.tprintf("%s/posts_list.html", config.layouts_dir),
-		context.allocator,
-	)
-	base_tpl, _ := os.read_entire_file_from_path(
-		fmt.tprintf("%s/base.html", config.layouts_dir),
-		context.allocator,
-	)
-
-	result, err := mustache.render_in_layout(string(posts_tpl), data, string(base_tpl), partials)
-	if err != nil {
-		fmt.eprintfln("thor: mustache error: %v", err)
-		return ""
-	}
-	return result
-}
-
 format_date :: proc(iso: string) -> string {
 	if len(iso) < 10 {
-		return iso
+		return ""
 	}
-	year := iso[:4]
-	month_num := (int(iso[5]) - 0x30) * 10 + (int(iso[6]) - 0x30)
-	day_num := (int(iso[8]) - 0x30) * 10 + (int(iso[9]) - 0x30)
-
-	if month_num < 1 || month_num > 12 {
-		return iso[:10]
-	}
-
-	return fmt.aprintf("%d %s %s", day_num, MONTHS[month_num - 1], year)
+	date, _, _, _ := time.iso8601_to_components(iso)
+	return fmt.aprintf("%s %d, %d", time.Month(date.month), date.day, date.year)
 }
 
 get_year :: proc(iso: string) -> string {

site.odin

@@ -17,7 +17,6 @@ Site :: struct {
 	base_url:    string,
 	config_path: string,
 	content_dir: string,
-	static_dir:  string,
 	assets_dir:  string,
 	output_dir:  string,
 	layouts_dir: string,
@@ -38,7 +37,6 @@ Flags :: struct {
 	description: string,
 	base_url:    string `args:"name=base-url"`,
 	content_dir: string `args:"name=content"`,
-	static_dir:  string `args:"name=static"`,
 	assets_dir:  string `args:"name=assets"`,
 	output_dir:  string `args:"name=output"`,
 	layouts_dir: string,
@@ -87,9 +85,6 @@ init_site :: proc(site: ^Site, args: []string) {
 	if site.content_dir == "" {
 		site.content_dir = fmt.tprintf("%s/content", config_dir)
 	}
-	if site.static_dir == "" {
-		site.static_dir = fmt.tprintf("%s/static", config_dir)
-	}
 	if site.assets_dir == "" {
 		site.assets_dir = fmt.tprintf("%s/assets", config_dir)
 	}
@@ -133,9 +128,6 @@ merge_flags :: proc(config: ^Flags, flags: Flags) {
 	if flags.content_dir != "" {
 		config.content_dir = flags.content_dir
 	}
-	if flags.static_dir != "" {
-		config.static_dir = flags.static_dir
-	}
 	if flags.assets_dir != "" {
 		config.assets_dir = flags.assets_dir
 	}
@@ -164,7 +156,6 @@ site_apply_flags :: proc(site: ^Site, flags: Flags) {
 	site.base_url = flags.base_url
 	site.config_path = flags.config_path
 	site.content_dir = flags.content_dir
-	site.static_dir = flags.static_dir
 	site.assets_dir = flags.assets_dir
 	site.output_dir = flags.output_dir
 	site.layouts_dir = flags.layouts_dir