Fix expression ignoring

lib/index.js

@@ -10,7 +10,7 @@ const revertBackupedLocals = require('./backup').revert
 const placeholders = require('./placeholders')
 
 const delimitersSettings = []
-let conditionals, switches, loops, scopes, ignored
+let conditionals, switches, loops, scopes, ignored, delimitersReplace, unescapeDelimitersReplace
 
 /**
  * @description Creates a set of local variables within the loop, and evaluates all nodes within the loop, returning their contents
@@ -124,12 +124,12 @@ module.exports = function postHTMLExpressions (options) {
   let before = escapeRegexpString(options.delimiters[0])
   let after = escapeRegexpString(options.delimiters[1])
 
-  const delimitersRegexp = new RegExp(`${before}(.+?)${after}`, 'g')
+  const delimitersRegexp = new RegExp(`(?<!@)${before}(.+?)${after}`, 'g')
 
   before = escapeRegexpString(options.unescapeDelimiters[0])
   after = escapeRegexpString(options.unescapeDelimiters[1])
 
-  const unescapeDelimitersRegexp = new RegExp(`${before}(.+?)${after}`, 'g')
+  const unescapeDelimitersRegexp = new RegExp(`(?<!@)${before}(.+?)${after}`, 'g')
 
   // make array of delimiters
   const delimiters = [
@@ -148,6 +148,9 @@ module.exports = function postHTMLExpressions (options) {
     delimitersSettings[1] = delimiters[0]
   }
 
+  delimitersReplace = new RegExp(`@${delimitersSettings[1].text[0]}`, 'g')
+  unescapeDelimitersReplace = new RegExp(`@${delimitersSettings[0].text[0]}`, 'g')
+
   // kick off the parsing
   return walk.bind(null, { locals: options.locals })
 }
@@ -176,20 +179,10 @@ function walk (opts, nodes) {
 
     // if we have a string, match and replace it
     if (typeof node === 'string') {
-      // if node contains ignored expression delimiter, output as-is
-      const before = delimitersSettings[1].text[0]
-      const after = delimitersSettings[1].text[1]
-      const ignoredDelimiter = new RegExp(`@${before}(.+?)${after}`, 'g')
-
-      if (ignoredDelimiter.test(node)) {
-        node = node.replace(`@${before}`, before)
-
-        m.push(node)
-
-        return m
-      }
-
       node = placeholders(node, ctx, delimitersSettings)
+      node = node
+        .replace(unescapeDelimitersReplace, delimitersSettings[0].text[0])
+        .replace(delimitersReplace, delimitersSettings[1].text[0])
 
       m.push(node)
 
@@ -200,6 +193,9 @@ function walk (opts, nodes) {
     if (node.attrs) {
       for (const key in node.attrs) {
         node.attrs[key] = placeholders(node.attrs[key], ctx, delimitersSettings)
+        node.attrs[key] = node.attrs[key]
+          .replace(unescapeDelimitersReplace, delimitersSettings[0].text[0])
+          .replace(delimitersReplace, delimitersSettings[1].text[0])
       }
     }
 

test/expect/expression_ignored.html

@@ -1,4 +1,4 @@
 {{ foo }}
-<p>
-  And here's a {{ variable }} that would be undefined.
+<p data-username="{{ user.name }}" data-user-id="user-{{ user.id }}-bar-{{ foo }}">
+  Here's one {{ variable }} and here's {{ another }}. And some bar.
 </p>

test/fixtures/expression_ignored.html

@@ -1,4 +1,4 @@
 @{{ foo }}
-<p>
-  And here's a @{{ variable }} that would be undefined.
+<p data-username="@{{ user.name }}" data-user-id="user-@{{ user.id }}-{{ foo }}-@{{ foo }}">
+  Here's one @{{ variable }} and here's @{{ another }}. And some {{ foo }}.
 </p>

test/test-conditionals.js

@@ -23,7 +23,7 @@ function process (t, name, options, log = false) {
       return clean(result.html)
     })
     .then((html) => {
-      t.truthy(html === expect(name).trim())
+      t.is(html, expect(name).trim())
     })
 }
 
@@ -51,13 +51,13 @@ test('Conditionals - no render', (t) => {
 
 test('Conditionals - "if" tag missing condition', (t) => {
   return error('conditional_if_error', (err) => {
-    t.truthy(err.toString() === 'Error: the "if" tag must have a "condition" attribute')
+    t.is(err.toString(), 'Error: the "if" tag must have a "condition" attribute')
   })
 })
 
 test('Conditionals - "elseif" tag missing condition', (t) => {
   return error('conditional_elseif_error', (err) => {
-    t.truthy(err.toString() === 'Error: the "elseif" tag must have a "condition" attribute')
+    t.is(err.toString(), 'Error: the "elseif" tag must have a "condition" attribute')
   })
 })
 

test/test-core.js

@@ -23,7 +23,7 @@ function process (t, name, options, log = false) {
       return clean(result.html)
     })
     .then((html) => {
-      t.truthy(html === expect(name).trim())
+      t.is(html, expect(name).trim())
     })
 }
 

test/test-scopes.js

@@ -23,7 +23,7 @@ function process (t, name, options, log = false) {
       return clean(result.html)
     })
     .then((html) => {
-      t.truthy(html === expect(name).trim())
+      t.is(html, expect(name).trim())
     })
 }
 

test/test-switch.js

@@ -23,7 +23,7 @@ function process (t, name, options, log = false) {
       return clean(result.html)
     })
     .then((html) => {
-      t.truthy(html === expect(name).trim())
+      t.is(html, expect(name).trim())
     })
 }
 
@@ -75,7 +75,7 @@ test('Switch - dynamic expression', (t) => {
 
 test('Switch - no switch attribute', (t) => {
   return error('switch_no_attr', (err) => {
-    t.truthy(err.toString() === 'Error: the "switch" tag must have a "expression" attribute')
+    t.is(err.toString(), 'Error: the "switch" tag must have a "expression" attribute')
   })
 })