===============================
Comments
===============================

#!/bin/bash
# hi

---

(program
  (comment)
  (comment))

===============================
Escaped newlines
===============================

abc \
  d \
  e

f=g   \
  h=i \
  j   \
  --k

---

(program
  (command
    (command_name (word))
    (word)
    (word))
  (command
    (variable_assignment
      (variable_name)
      (word))
    (variable_assignment
      (variable_name)
      (word))
    (command_name (word))
    (word)))

=============================
escaped newline immediately after a char
=============================

echo a \
    b

echo a\
    b

echo a\
    b\
    c


-----------------------------

(program
  (command
    (command_name
      (word))
    (word)
    (word))
  (command
    (command_name
      (word))
    (word)
    (word))
  (command
    (command_name
      (word))
    (word)
    (word)
    (word)))

=============================
Escaped whitespace
============================

echo 1 \ 2 \ 3

---

(program (command (command_name (word)) (word) (word) (word)))

====================================
Files without trailing terminators
====================================

echo hi
---

(program (command (command_name (word)) (word)))