From b98d89560c3358c3fd244be818307211b90de63b Mon Sep 17 00:00:00 2001
From: Adrian Jost <adrianjost@users.noreply.github.com>
Date: Fri, 8 Mar 2019 10:09:17 +0100
Subject: [PATCH 1/2] enable tab compatbility

---
 __tests__/__snapshots__/dedent-tests.js.snap | 12 ++++++++++++
 __tests__/dedent-tests.js                    | 18 ++++++++++++++++++
 dedent.js                                    |  3 ++-
 dist/dedent.js                               | 16 ++++++++--------
 4 files changed, 40 insertions(+), 9 deletions(-)

diff --git a/__tests__/__snapshots__/dedent-tests.js.snap b/__tests__/__snapshots__/dedent-tests.js.snap
index 9d2abbc8..06d6211b 100644
--- a/__tests__/__snapshots__/dedent-tests.js.snap
+++ b/__tests__/__snapshots__/dedent-tests.js.snap
@@ -27,6 +27,12 @@ exports[`dedent works with blank first line 1`] = `
 That\'s all."
 `;
 
+exports[`dedent works with escaped tabs for indentation 1`] = `
+"first
+	second
+		third"
+`;
+
 exports[`dedent works with interpolation 1`] = `
 "first line
 second
@@ -50,6 +56,12 @@ exports[`dedent works with suppressed newlines 1`] = `
 third"
 `;
 
+exports[`dedent works with tabs for indentation 1`] = `
+"first
+	second
+		third"
+`;
+
 exports[`dedent works without interpolation 1`] = `
 "first
 second
diff --git a/__tests__/dedent-tests.js b/__tests__/dedent-tests.js
index 501bc7c5..74eb3927 100644
--- a/__tests__/dedent-tests.js
+++ b/__tests__/dedent-tests.js
@@ -97,4 +97,22 @@ describe("dedent", () => {
       </p>\n
     `).toMatchSnapshot();
   });
+
+  /* eslint-disable indent */
+  it("works with tabs for indentation", () => {
+    expect(
+      dd`
+			first
+				second
+					third
+			`
+    ).toMatchSnapshot();
+  });
+
+  it("works with escaped tabs for indentation", () => {
+    expect(
+      dd("\t\tfirst\n\t\t\tsecond\n\t\t\t\tthird")
+    ).toMatchSnapshot();
+  });
+  /* eslint-enable indent */
 });
diff --git a/dedent.js b/dedent.js
index 9d472d48..8ef9a4ee 100644
--- a/dedent.js
+++ b/dedent.js
@@ -39,7 +39,8 @@ export default function dedent(
 
   if (mindent !== null) {
     const m = mindent; // appease Flow
-    result = lines.map(l => l[0] === " " ? l.slice(m) : l).join("\n");
+    const whitespaceCharacters = [" ", "\t"]; // [space, tab]
+    result = lines.map(l => whitespaceCharacters.includes(l[0]) ? l.slice(m) : l).join("\n");
   }
 
   return result
diff --git a/dist/dedent.js b/dist/dedent.js
index 5abc6a8c..bbfb024b 100644
--- a/dist/dedent.js
+++ b/dist/dedent.js
@@ -11,12 +11,11 @@ function dedent(strings) {
   // first, perform interpolation
   var result = "";
   for (var i = 0; i < raw.length; i++) {
-    result += raw[i].
+    result += raw[i]
     // join lines when there is a suppressed newline
-    replace(/\\\n[ \t]*/g, "").
-
+    .replace(/\\\n[ \t]*/g, "")
     // handle escaped backticks
-    replace(/\\`/g, "`");
+    .replace(/\\`/g, "`");
 
     if (i < (arguments.length <= 1 ? 0 : arguments.length - 1)) {
       result += arguments.length <= i + 1 ? undefined : arguments[i + 1];
@@ -42,15 +41,16 @@ function dedent(strings) {
   if (mindent !== null) {
     (function () {
       var m = mindent; // appease Flow
+      var whitespaceCharacters = [" ", "\t"]; // [space, tab]
       result = lines.map(function (l) {
-        return l[0] === " " ? l.slice(m) : l;
+        return whitespaceCharacters.includes(l[0]) ? l.slice(m) : l;
       }).join("\n");
     })();
   }
 
-  return result.
+  return result
   // dedent eats leading and trailing whitespace too
-  trim().
+  .trim()
   // handle escaped newlines at the end to ensure they don't get stripped too
-  replace(/\\n/g, "\n");
+  .replace(/\\n/g, "\n");
 }

From acae03442515886e3249cbe57ab76c3840e8182e Mon Sep 17 00:00:00 2001
From: adrianjost <22987140+adrianjost@users.noreply.github.com>
Date: Wed, 4 Nov 2020 08:52:57 +0100
Subject: [PATCH 2/2] incorporate pr feedback - improve speed

---
 dedent.js      | 3 +--
 dist/dedent.js | 3 +--
 2 files changed, 2 insertions(+), 4 deletions(-)

diff --git a/dedent.js b/dedent.js
index 8ef9a4ee..b1516d95 100644
--- a/dedent.js
+++ b/dedent.js
@@ -39,8 +39,7 @@ export default function dedent(
 
   if (mindent !== null) {
     const m = mindent; // appease Flow
-    const whitespaceCharacters = [" ", "\t"]; // [space, tab]
-    result = lines.map(l => whitespaceCharacters.includes(l[0]) ? l.slice(m) : l).join("\n");
+    result = lines.map(l => (l[0] === " " || l[0] === "\t") ? l.slice(m) : l).join("\n");
   }
 
   return result
diff --git a/dist/dedent.js b/dist/dedent.js
index bbfb024b..3a441f78 100644
--- a/dist/dedent.js
+++ b/dist/dedent.js
@@ -41,9 +41,8 @@ function dedent(strings) {
   if (mindent !== null) {
     (function () {
       var m = mindent; // appease Flow
-      var whitespaceCharacters = [" ", "\t"]; // [space, tab]
       result = lines.map(function (l) {
-        return whitespaceCharacters.includes(l[0]) ? l.slice(m) : l;
+        return l[0] === " " || l[0] === "\t" ? l.slice(m) : l;
       }).join("\n");
     })();
   }