removed unneeded changes

Sources/ForTag.swift

@@ -28,21 +28,22 @@ class ForNode : NodeType {
 
     let forNodes = try parser.parse(until(["endfor", "empty"]))
 
-    if let token = parser.nextToken() {
-      if token.contents == "empty" {
-        emptyNodes = try parser.parse(until(["endfor"]))
-        _ = parser.nextToken()
-      }
-    } else {
-      throw TemplateSyntaxError("`endfor` was not found.")
-    }
-
     let `where`: Expression?
     if components.count >= 6 {
       `where` = try parseExpression(components: Array(components.suffix(from: 5)), tokenParser: parser, token: token)
     } else {
       `where` = nil
     }
+
+    guard let token = parser.nextToken() else {
+      throw TemplateSyntaxError("`endfor` was not found.")
+    }
+    
+    if token.contents == "empty" {
+      emptyNodes = try parser.parse(until(["endfor"]))
+      _ = parser.nextToken()
+    }
+
     return ForNode(resolvable: filter, loopVariables: loopVariables, nodes: forNodes, emptyNodes:emptyNodes, where: `where`, token: token)
   }
 

Sources/IfTag.swift

@@ -226,18 +226,18 @@ class IfNode : NodeType {
     var trueNodes = [NodeType]()
     var falseNodes = [NodeType]()
 
+    let expression = try parseExpression(components: components, tokenParser: parser, token: token)
     falseNodes = try parser.parse(until(["endif", "else"]))
 
-    if let token = parser.nextToken() {
+    guard let token = parser.nextToken() else {
+      throw TemplateSyntaxError("`endif` was not found.")
+    }
+
     if token.contents == "else" {
       trueNodes = try parser.parse(until(["endif"]))
       _ = parser.nextToken()
     }
-    } else {
-      throw TemplateSyntaxError("`endif` was not found.")
-    }
 
-    let expression = try parseExpression(components: components, tokenParser: parser, token: token)
     return IfNode(conditions: [
       IfCondition(expression: expression, nodes: trueNodes),
       IfCondition(expression: nil, nodes: falseNodes),

Sources/Lexer.swift

@@ -56,24 +56,6 @@ struct Lexer {
     return tokens
   }
   
-  func tokenLine(_ token: Token) -> (content: String, number: Int, offset: String.IndexDistance) {
-    var lineNumber: Int = 0
-    var offset = 0
-    var lineContent = ""
-
-    for line in templateString.components(separatedBy: CharacterSet.newlines) {
-      lineNumber += 1
-      lineContent = line
-      if let rangeOfLine = templateString.range(of: line), rangeOfLine.contains(token.range.lowerBound) {
-        offset = templateString.distance(from: rangeOfLine.lowerBound, to:
-          token.range.lowerBound)
-        break
-      }
-    }
-
-    return (lineContent, lineNumber, offset)
-  }
-  
 }
 
 class Scanner {

Sources/Parser.swift

@@ -54,9 +54,9 @@ public class TokenParser {
             let node = try parser(self, token)
             nodes.append(node)
           } catch {
-            if var syntaxError = error as? TemplateSyntaxError, syntaxError.token == nil {
-              syntaxError.token = token
-              throw syntaxError
+            if var error = error as? TemplateSyntaxError {
+              error.token = error.token ?? token
+              throw error
             } else {
               throw error
             }
@@ -106,13 +106,14 @@ public class TokenParser {
     do {
       return try FilterExpression(token: filterToken, parser: self)
     } catch {
-      if var syntaxError = error as? TemplateSyntaxError, syntaxError.token == nil {
+      if var error = error as? TemplateSyntaxError, error.token == nil {
+        // find range of filter in the containing token so that only filter is highligted, not the whole token
         if let filterTokenRange = environment.template?.templateString.range(of: filterToken, range: containingToken.range) {
-          syntaxError.token = Token.block(value: filterToken, at: filterTokenRange)
+          error.token = Token.variable(value: filterToken, at: filterTokenRange)
         } else {
-          syntaxError.token = containingToken
+          error.token = containingToken
         }
-        throw syntaxError
+        throw error
       } else {
         throw error
       }