From 6df970ae94b6d09df4075419429ea7a134fce601 Mon Sep 17 00:00:00 2001
From: Sharon Rosner <sharon@noteflakes.com>
Date: Wed, 8 May 2024 08:26:58 +0200
Subject: [PATCH] Compiler: add support for #text (#17)

---
 lib/papercraft/compiler.rb              | 13 +++++++++++++
 lib/papercraft/tags.rb                  |  5 +++--
 test/fixtures/compiler/text.html        |  1 +
 test/fixtures/compiler/text_compiled.rb |  3 +++
 test/fixtures/compiler/text_source.rb   | 11 +++++++++++
 5 files changed, 31 insertions(+), 2 deletions(-)
 create mode 100644 test/fixtures/compiler/text.html
 create mode 100644 test/fixtures/compiler/text_compiled.rb
 create mode 100644 test/fixtures/compiler/text_source.rb

diff --git a/lib/papercraft/compiler.rb b/lib/papercraft/compiler.rb
index 5de896a..788786b 100644
--- a/lib/papercraft/compiler.rb
+++ b/lib/papercraft/compiler.rb
@@ -82,6 +82,12 @@ def visit_call_node(node)
     return super if node.receiver
 
     @html_location_start ||= node.location
+
+    case node.name
+    when :text
+      return emit_html_text(node)
+    end
+
     inner_text, attrs = tag_args(node)
     block = node.block
 
@@ -166,4 +172,11 @@ def emit_tag_attribute_node(node, key = false)
       tag_attr_embed_visit(node, key)
     end
   end
+
+  def emit_html_text(node)
+    args = node.arguments&.arguments
+    return nil if !args
+
+    emit_tag_inner_text(args[0])
+  end
 end
diff --git a/lib/papercraft/tags.rb b/lib/papercraft/tags.rb
index 5f53d28..3bfb787 100644
--- a/lib/papercraft/tags.rb
+++ b/lib/papercraft/tags.rb
@@ -218,9 +218,10 @@ def method_missing(sym, *args, **opts, &block)
     # Emits text into the rendering buffer, escaping any special characters to
     # the respective XML entities.
     #
-    # @param data [String] text
+    # @param data [String, nil] text
     # @return [void]
-    def text(data)
+    def text(data = nil)
+      return if !data
       return if @render_fragment && @fragment != @render_fragment
         
       @buffer << escape_text(data)
diff --git a/test/fixtures/compiler/text.html b/test/fixtures/compiler/text.html
new file mode 100644
index 0000000..fc072f8
--- /dev/null
+++ b/test/fixtures/compiler/text.html
@@ -0,0 +1 @@
+<h1>foo&amp;bar</h1><h2>bar&amp;baz</h2>
\ No newline at end of file
diff --git a/test/fixtures/compiler/text_compiled.rb b/test/fixtures/compiler/text_compiled.rb
new file mode 100644
index 0000000..3c55053
--- /dev/null
+++ b/test/fixtures/compiler/text_compiled.rb
@@ -0,0 +1,3 @@
+->(__buffer__) {
+  __buffer__ << "<h1>foo&amp;bar</h1><h2>#{CGI.escapeHTML((x).to_s)}</h2>"
+}
diff --git a/test/fixtures/compiler/text_source.rb b/test/fixtures/compiler/text_source.rb
new file mode 100644
index 0000000..dc44232
--- /dev/null
+++ b/test/fixtures/compiler/text_source.rb
@@ -0,0 +1,11 @@
+x = 'bar&baz'
+
+->() {
+  h1 {
+    text 'foo&bar'
+  }
+  text # should emit nothing
+  h2 {
+    text x
+  }
+}