Lexer fixes

lib/bashcov/lexer.rb

@@ -27,10 +27,17 @@ def initialize(filename, coverage)
 
     # Process and complete initial coverage.
     # @return [void]
-    def complete_coverage
+    def complete_coverage # rubocop:disable Metrics/MethodLength
       lines = IO.read(@filename).encode("utf-8", invalid: :replace).lines
 
       lines.each_with_index do |line, lineno|
+        # multi-line arrays
+        mark_multiline(
+          lines, lineno,
+          /\A[^\n]*\b=\([^()]*\)/,
+          forward: false
+        )
+
         # heredoc
         mark_multiline(
           lines, lineno,
@@ -43,6 +50,12 @@ def complete_coverage
           /\A[^\n]+\\$(\s*['"][^'"]*['"]\s*\\$){1,}\s*['"][^'"]*['"]\s*$/
         )
 
+        # simple line continuations with backslashes
+        mark_multiline(
+          lines, lineno,
+          /\A([^\n&|;]*[^\\&|;](\\\\)*\\\n)+[^\n&|;]*[^\n\\&|;](\\\\)*$/
+        )
+
         # multiline string concatenated with newlines
         %w[' "].each do |char|
           mark_multiline(

spec/support/test_app.rb

@@ -15,6 +15,7 @@ def uncovered_files
 def expected_coverage # rubocop:disable Metrics/MethodLength
   {
     "#{test_app}/never_called.sh" => [nil, nil, 0],
+    "#{test_app}/scripts/array.sh" => [nil, nil, 1, 1, 1, 1, 1, 1],
     "#{test_app}/scripts/case.sh" => [nil, nil, nil, 2, nil, 1, nil, nil, 0, 1, nil, nil, nil, 1, 1],
     "#{test_app}/scripts/cd.sh" => [nil, nil, 1, 2, nil, 3, 1, 3, nil, 2, nil, nil, 1, nil, 3, nil, 6, nil, 1, nil, 1],
     "#{test_app}/scripts/delete.sh" => [nil, nil, 1, 1, 1, 1, nil, 1, 1],
@@ -31,6 +32,7 @@ def expected_coverage # rubocop:disable Metrics/MethodLength
     "#{test_app}/scripts/unicode.sh" => [nil, nil, nil, 1, nil, 1],
     "#{test_app}/scripts/multiline.sh" => [nil, nil, nil, 1, nil, 0, nil, 1, nil, 1, nil, 0, nil, nil, 1, 2, 1, 1, 0, nil, nil, 2, nil, nil, 1, 1, 1, 1, nil, 1, 1, 1, 1, 1, nil, 1, 1, 1, 1, nil, 1],
     "#{test_app}/scripts/multiline2.sh" => [nil, nil, 1, 1, 1, 1, nil, 1, 1, 1, 1, nil, 1, 1, 1, 1, 1, 1, nil, 1, 1, 1, 1, 1, 1, 1, 1, nil, 1, 1, 1, nil, 1],
+    "#{test_app}/scripts/multiline3.sh" => [nil, nil, 1, 1, 1, 1],
     "#{test_app}/scripts/executable" => [nil, nil, 1],
     "#{test_app}/scripts/exit_non_zero.sh" => [nil, nil, 1],
     "#{test_app}/scripts/no_shebang.sh" => [nil, nil, nil, nil, 0],

spec/test_app/scripts/array.sh

@@ -0,0 +1,8 @@
+#!/bin/bash
+
+arr=(
+	foo
+	bar
+	baz
+	quux
+)

spec/test_app/scripts/multiline3.sh

@@ -0,0 +1,6 @@
+#!/bin/bash
+
+echo 1 \
+     2 \
+     3 \
+     4