Add escape for \' (#81)

minijinja/src/utils.rs

@@ -102,7 +102,7 @@ impl Unescaper {
                 match char_iter.next() {
                     None => return Err(ErrorKind::BadEscape.into()),
                     Some(d) => match d {
-                        '"' | '\\' | '/' => self.push_char(d)?,
+                        '"' | '\\' | '/' | '\'' => self.push_char(d)?,
                         'b' => self.push_char('\x08')?,
                         'f' => self.push_char('\x0C')?,
                         'n' => self.push_char('\n')?,

minijinja/tests/inputs/escape.txt

@@ -0,0 +1,8 @@
+{
+    "x": "hello"
+}
+---
+{{'\'' ~ 'foo'}}
+{{'\'' ~ x ~ '\''}}
+{{"\'" ~ x ~ '\''}}
+{{"\'" ~ x ~ '\''}}

minijinja/tests/parser-inputs/escape.txt

@@ -0,0 +1,3 @@
+{{'\'' ~ 'foo'}}
+{{'\'' ~ "foo"}}
+{{"\'"}}

minijinja/tests/snapshots/test_parser__parser@escape.txt.snap

@@ -0,0 +1,44 @@
+---
+source: minijinja/tests/test_parser.rs
+expression: "&ast"
+input_file: minijinja/tests/parser-inputs/escape.txt
+---
+Ok(
+    Template {
+        children: [
+            EmitExpr {
+                expr: BinOp {
+                    op: Concat,
+                    left: Const {
+                        value: "'",
+                    } @ 1:2-1:6,
+                    right: Const {
+                        value: "foo",
+                    } @ 1:9-1:14,
+                } @ 1:0-1:14,
+            } @ 1:0-1:14,
+            EmitRaw {
+                raw: "\n",
+            } @ 1:16-2:0,
+            EmitExpr {
+                expr: BinOp {
+                    op: Concat,
+                    left: Const {
+                        value: "'",
+                    } @ 2:2-2:6,
+                    right: Const {
+                        value: "foo",
+                    } @ 2:9-2:14,
+                } @ 2:0-2:14,
+            } @ 2:0-2:14,
+            EmitRaw {
+                raw: "\n",
+            } @ 2:16-3:0,
+            EmitExpr {
+                expr: Const {
+                    value: "'",
+                } @ 3:2-3:6,
+            } @ 3:0-3:6,
+        ],
+    } @ 0:0-3:8,
+)

minijinja/tests/snapshots/test_templates__vm@escape.txt.snap

@@ -0,0 +1,10 @@
+---
+source: minijinja/tests/test_templates.rs
+expression: "&rendered"
+input_file: minijinja/tests/inputs/escape.txt
+---
+'foo
+'hello'
+'hello'
+'hello'
+