Support special escape sequences in Terraform (rouge-ruby#2073)

tancnle · Sep 18, 2024 · 67f3244 · 67f3244
1 parent 98febba
commit 67f3244
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Showing 2 changed files with 18 additions and 2 deletions.
diff --git a/lib/rouge/lexers/terraform.rb b/lib/rouge/lexers/terraform.rb
@@ -39,8 +39,9 @@ def self.builtins
 
       state :strings do
         rule %r/\\./, Str::Escape
+        rule %r/(\$[\$]+|%[%]+)(\{)/, Str
         rule %r/\$\{/ do
-          token Keyword
+          token Punctuation
           push :interpolation
         end
       end
@@ -66,7 +67,7 @@ def self.builtins
 
       state :interpolation do
         rule %r/\}/ do
-          token Keyword
+          token Punctuation
           pop!
         end
 

diff --git a/spec/visual/samples/terraform b/spec/visual/samples/terraform
@@ -84,3 +84,18 @@ resource "aws_subnet" "main" {
 resource "aws_cloudfront_distribution" "s3_distribution" {
   aliases = ["www.${replace(var.domain_name, "/\\.$/", "")}"]
 }
+
+# Directives in string templates
+locals {
+  policy = <<EOT
+%{ for ip in aws_instance.example[*].private_ip }
+server ${ip}
+%{ endfor }
+EOT
+}
+
+# Special escape sequences that do not use backslashes
+locals {
+  demo_dollars_1 = "$${local.demo}"
+  demo_dollars_2 = "%%{for i in items}"
+}