Will Anderson
3e7d316c65
Parser additions (parser.el, no existing features removed):
- HTML template parser functions: is_html_tag_name, is_void_element,
parse_html_text_tokens, parse_html_attrs, parse_html_children,
parse_html_each_body, parse_html_element, parse_html_template
- HtmlTemplate detection in parse_primary (<tagname> and <!doctype>)
- Lambda fn literal expression node (parse_primary)
- Enum::Variant pattern matching (parse_pattern)
- type definition optional = before {
- try/catch statement (TryCatch AST node)
Codegen additions (codegen.el, no existing features removed):
- HTML template C codegen: cg_html_template, cg_html_parts,
cg_html_attrs_str, cg_html_element_str, cg_html_each, next_html_id
- HtmlTemplate and Lambda dispatch in cg_expr
- Variant pattern support in cg_match
- TryCatch lowering in cg_stmt (C: runs try body, ignores catch)
- builtin_arity entries: getpid_now, stdout_to_file, stdout_restore
JS codegen additions (codegen-js.el, pure additions only):
- JS HTML template codegen: js_cg_html_template and helpers
- HtmlTemplate dispatch in js_cg_expr
Example: examples/html-page.el
41 lines
1.2 KiB
EmacsLisp
41 lines
1.2 KiB
EmacsLisp
// html-page.el — Example of native HTML template syntax in El.
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//
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// El HTML templates let you write HTML directly in expression position.
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// Interpolated values are automatically HTML-escaped.
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// Use raw(expr) to bypass escaping when you know the content is safe.
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//
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// Compile and run:
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// ./dist/platform/elc examples/html-page.el > /tmp/html-page.c
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// cc -std=c11 -I el-compiler/runtime -lcurl -lpthread \
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// -o /tmp/html-page /tmp/html-page.c el-compiler/runtime/el_runtime.c
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// /tmp/html-page
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fn render_item(item: String) -> String {
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return <li class="item">{item}</li>
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}
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fn render_page(title: String, items: [String]) -> String {
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return <!doctype html>
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<html lang="en">
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<head>
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<meta charset="utf-8" />
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<title>{title}</title>
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</head>
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<body>
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<h1>{title}</h1>
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<ul>
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{#each items as item}
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<li class="item">{item}</li>
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{/each}
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</ul>
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<p>Built with El HTML templates</p>
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</body>
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</html>
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}
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fn main() -> Void {
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let items: [String] = ["Lexer", "Parser", "Codegen", "Runtime"]
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let page: String = render_page("El Compiler Stages", items)
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println(page)
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}
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