JavaScript: String Single Character Escape Sequences (#415)

https://tc39.es/ecma262#table-string-single-character-escape-sequences
alecthomas · Oct 25, 2020 · 639fa3a · 639fa3a
1 parent 4453913
commit 639fa3a
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Showing 3 changed files with 16 additions and 2 deletions.
diff --git a/lexers/j/javascript.go b/lexers/j/javascript.go
@@ -49,6 +49,7 @@ var JavascriptRules = Rules{
 		{"`", LiteralStringBacktick, Pop(1)},
 		{`\\\\`, LiteralStringBacktick, nil},
 		{"\\\\`", LiteralStringBacktick, nil},
+		{"\\\\[^`\\\\]", LiteralStringBacktick, nil},
 		{`\$\{`, LiteralStringInterpol, Push("interp-inside")},
 		{`\$`, LiteralStringBacktick, nil},
 		{"[^`\\\\$]+", LiteralStringBacktick, nil},

diff --git a/lexers/testdata/javascript.actual b/lexers/testdata/javascript.actual
@@ -1,2 +1,3 @@
 sum = parseInt(num1) + parseInt(num2) // "+" means "add"
-alert("Sum = " + sum)  // "+" means combine into a string
+alert("Sum = " + sum)  // "+" means combine into a string
+const filePath = String.raw`C:\Development\profile\aboutme.html`;
diff --git a/lexers/testdata/javascript.expected b/lexers/testdata/javascript.expected
@@ -25,5 +25,17 @@
   {"type":"NameOther","value":"sum"},
   {"type":"Punctuation","value":")"},
   {"type":"Text","value":"  "},
-  {"type":"CommentSingle","value":"// \"+\" means combine into a string\n"}
+  {"type":"CommentSingle","value":"// \"+\" means combine into a string\n"},
+  {"type":"KeywordReserved","value":"const"},
+  {"type":"Text","value":" "},
+  {"type":"NameOther","value":"filePath"},
+  {"type":"Text","value":" "},
+  {"type":"Operator","value":"="},
+  {"type":"Text","value":" "},
+  {"type":"NameBuiltin","value":"String"},
+  {"type":"Punctuation","value":"."},
+  {"type":"NameOther","value":"raw"},
+  {"type":"LiteralStringBacktick","value":"`C:\\Development\\profile\\aboutme.html`"},
+  {"type":"Punctuation","value":";"},
+  {"type":"Text","value":"\n"}
 ]