Add a spec for interpolation after a hyphen (#1247)

See sass/dart-sass#290

spec/libsass-closed-issues/issue_1722-4.0/expected_output.css

@@ -1,3 +1,3 @@
 .test {
-  background-position: 0-1.12em;
+  background-position: 0 -1.12em;
 }

spec/libsass-closed-issues/issue_1722-4.0/options.yml

@@ -1,2 +1,4 @@
 ---
 :start_version: '4.0'
+:ignore_for:
+- ruby-sass

spec/parser/operations/subtract/dimensions/pairs-4.0/expected_output.css

@@ -7,8 +7,8 @@ foo {
   test-6: 10 -10px;
   test-7: 0px;
   test-8: 0px;
-  test-9: 10-10px;
-  test-10: 10-10px;
+  test-9: 10 -10px;
+  test-10: 10 -10px;
   test-11: 10-10px;
   test-12: 10-10px;
   test-13: 9 0px;
@@ -28,7 +28,7 @@ foo {
   test-27: 10px- 10px;
   test-28: 0px;
   test-29: 10px- 10px;
-  test-30: 10px-10px;
+  test-30: 10px -10px;
   test-31: 10px- 10px;
   test-32: 10px-10px;
   test-33: 9px 0px;
@@ -44,7 +44,7 @@ foo {
   test-43: 10px- 10 px;
   test-44: 0px px;
   test-45: 10px-10px;
-  test-46: 10px-10px;
+  test-46: 10px -10px;
   test-47: 10px- 10px;
   test-48: 10px-10px;
   test-49: 10px-10px;

spec/parser/operations/subtract/dimensions/pairs-4.0/options.yml

@@ -1,2 +1,4 @@
 ---
 :start_version: '4.0'
+:ignore_for:
+- ruby-sass

spec/parser/operations/subtract/numbers/pairs-4.0/expected_output.css

@@ -3,40 +3,40 @@ foo {
   test-2: 10 -10;
   test-3: 0;
   test-4: 0;
-  test-5: 10-10;
-  test-6: 10-10;
+  test-5: 10 -10;
+  test-6: 10 -10;
   test-7: 10-10;
   test-8: 10-10;
   test-9: 9 0;
   test-10: 10 -1 0;
   test-11: 9 0;
   test-12: 9 0;
-  test-13: 10-10;
-  test-14: 10-10;
+  test-13: 10 -10;
+  test-14: 10 -10;
   test-15: 10-10;
   test-16: 10-10;
   test-17: 10-10;
-  test-18: 10-10;
+  test-18: 10 -10;
   test-19: 10- 10;
   test-20: 10-10;
   test-21: 10-10;
   test-22: 10 -1 0;
   test-23: 10- 1 0;
   test-24: 10-1 0;
   test-25: 10-10;
-  test-26: 10-10;
+  test-26: 10 -10;
   test-27: 10- 10;
   test-28: 10-10;
   test-29: 1 0-10;
   test-30: 1 0 -1 0;
   test-31: 1 0- 1 0;
   test-32: 1 0-1 0;
   test-33: 1 0-10;
-  test-34: 1 0-10;
+  test-34: 1 0 -10;
   test-35: 1 0- 10;
   test-36: 1 0-10;
   test-37: 10-10;
-  test-38: 10-10;
+  test-38: 10 -10;
   test-39: 10- 10;
   test-40: 10-10;
 }

spec/parser/operations/subtract/numbers/pairs-4.0/options.yml

@@ -1,2 +1,4 @@
 ---
 :start_version: '4.0'
+:ignore_for:
+- ruby-sass

spec/parser/operations/subtract/strings/pairs-4.0/expected_output.css

@@ -8,55 +8,55 @@ foo {
   test-7: literal- "quoted";
   test-8: literal-"quoted";
   test-9: literal-interpolant;
-  test-10: literal-interpolant;
+  test-10: literal -interpolant;
   test-11: literal- interpolant;
   test-12: literal-interpolant;
   test-13: literal-lschema_ritlp;
   test-14: literal -lschema_ritlp;
   test-15: literal- lschema_ritlp;
   test-16: literal-lschema_ritlp;
   test-17: literal-litlp_rschema;
-  test-18: literal-litlp_rschema;
+  test-18: literal -litlp_rschema;
   test-19: literal- litlp_rschema;
   test-20: literal-litlp_rschema;
   test-21: "quoted"-"quoted";
   test-22: "quoted"-"quoted";
   test-23: "quoted"-"quoted";
   test-24: "quoted"-"quoted";
-  test-25: "quoted"-interpolant;
-  test-26: "quoted"-interpolant;
+  test-25: "quoted" -interpolant;
+  test-26: "quoted" -interpolant;
   test-27: "quoted"-interpolant;
   test-28: "quoted"-interpolant;
   test-29: "quoted" -lschema_ritlp;
   test-30: "quoted" -lschema_ritlp;
   test-31: "quoted"-lschema_ritlp;
   test-32: "quoted"-lschema_ritlp;
-  test-33: "quoted"-litlp_rschema;
-  test-34: "quoted"-litlp_rschema;
+  test-33: "quoted" -litlp_rschema;
+  test-34: "quoted" -litlp_rschema;
   test-35: "quoted"-litlp_rschema;
   test-36: "quoted"-litlp_rschema;
   test-37: interpolant-interpolant;
-  test-38: interpolant-interpolant;
+  test-38: interpolant -interpolant;
   test-39: interpolant- interpolant;
   test-40: interpolant-interpolant;
   test-41: interpolant-lschema_ritlp;
   test-42: interpolant -lschema_ritlp;
   test-43: interpolant- lschema_ritlp;
   test-44: interpolant-lschema_ritlp;
   test-45: interpolant-litlp_rschema;
-  test-46: interpolant-litlp_rschema;
+  test-46: interpolant -litlp_rschema;
   test-47: interpolant- litlp_rschema;
   test-48: interpolant-litlp_rschema;
   test-49: lschema_ritlp-lschema_ritlp;
   test-50: lschema_ritlp -lschema_ritlp;
   test-51: lschema_ritlp- lschema_ritlp;
   test-52: lschema_ritlp-lschema_ritlp;
   test-53: lschema_ritlp-litlp_rschema;
-  test-54: lschema_ritlp-litlp_rschema;
+  test-54: lschema_ritlp -litlp_rschema;
   test-55: lschema_ritlp- litlp_rschema;
   test-56: lschema_ritlp-litlp_rschema;
   test-57: litlp_rschema-litlp_rschema;
-  test-58: litlp_rschema-litlp_rschema;
+  test-58: litlp_rschema -litlp_rschema;
   test-59: litlp_rschema- litlp_rschema;
   test-60: litlp_rschema-litlp_rschema;
 }

spec/parser/operations/subtract/strings/pairs-4.0/options.yml

@@ -1,2 +1,4 @@
 ---
 :start_version: '4.0'
+:ignore_for:
+- ruby-sass

spec/sass_4_0/interpolation/after_hyphen/expected_output.css

@@ -0,0 +1,7 @@
+.after-hyphen {
+  standalone-single: -foo;
+  standalone-double: --foo;
+
+  adjacent-single: foo -bar;
+  adjacent-double: foo --bar;
+}

spec/sass_4_0/interpolation/after_hyphen/input.scss

@@ -0,0 +1,12 @@
+.after-hyphen {
+  // We want to treat interpolation as though it's a valid identifier character,
+  // which means that if it comes after a hyphen or double-hyphen it should be
+  // treated as part of an interpolated identifier that includes that hyphen.
+  standalone-single: -#{foo};
+  standalone-double: --#{foo};
+
+  // It also means that we shouldn't treat the hyphen as a subtraction
+  // operation.
+  adjacent-single: #{foo} -#{bar};
+  adjacent-double: #{foo} --#{bar};
+}

spec/sass_4_0/interpolation/after_hyphen/options.yml

@@ -0,0 +1,3 @@
+---
+:ignore_for:
+- ruby-sass

spec/scss/zero-compression-4.0/expected_output.css

@@ -1,6 +1,6 @@
 foo {
-  tst-1: 0-0.12em;
-  tst-2: 0-0.12em;
-  tst-3: 0-0.12em;
-  tst-4: 0-0.12em;
+  tst-1: 0 -0.12em;
+  tst-2: 0 -0.12em;
+  tst-3: 0 -0.12em;
+  tst-4: 0 -0.12em;
 }

spec/scss/zero-compression-4.0/options.yml

@@ -1,2 +1,4 @@
 ---
 :start_version: '4.0'
+:ignore_for:
+- ruby-sass