user: Demonstrate the C code that generates the assembly output below:

```asm
<validateExpression>:
  endbr64
  push   %r15
  mov    %rdi,%r15
  push   %r14
  mov    %rsi,%r14
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  sub    $0x38,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,0x28(%rsp)
  xor    %eax,%eax
  lea    0x14(%rsp),%rbx
  lea    0x20(%rsp),%r13
  lea    0x18(%rsp),%rbp
  mov    %rbx,%rcx
  mov    %r13,%rdx
  mov    %rbp,%rsi
  call   <readNextName@plt>
  mov    %eax,%r12d
  test   %eax,%eax
  jne    L72
  mov    0x14(%rsp),%eax
  cmp    $0xf33ff156,%eax
  setne  %dl
  cmp    $0x3e0818f7,%eax
  setne  %cl
  and    %ecx,%edx
  cmp    $0x122452e3,%eax
  setne  %cl
  test   %cl,%dl
  je     L81
  cmp    $0x1fdc6,%eax
  jne    L131
L81:
  mov    0x20(%rsp),%rdi
  lea    0x12(%rsp),%r15
  mov    %r13,%rdx
  mov    %rbp,%rsi
  mov    %r15,%rcx
  call   <readNextValue@plt>
  mov    %eax,%r12d
  test   %eax,%eax
  je     L1
L72:
  mov    0x28(%rsp),%rax
  sub    %fs:0x28,%rax
  jne    L166
  add    $0x38,%rsp
  mov    %r12d,%eax
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
  xchg   %ax,%ax
L1:
  movb   $0x0,(%r14)
  mov    0x18(%rsp),%rdi
  mov    %r13,%rdx
  mov    %rbx,%rcx
  mov    %rbp,%rsi
  call   <readNextName@plt>
  lea    0x13(%rsp),%rdx
  mov    %rdx,0x8(%rsp)
  test   %eax,%eax
  je     L233
  jmp    L72
  nopw   0x0(%rax,%rax,1)
L114:
  cmp    $0xa,%al
  je     L26
  cmp    $0xd,%al
  je     L26
L226:
  mov    0x14(%rsp),%eax
  cmp    $0x65bc408d,%eax
  je     L69
  cmp    $0x47bc1153,%eax
  jne    L25
L69:
  mov    0x20(%rsp),%rdi
  mov    %rbx,%rcx
  mov    %r13,%rdx
  mov    %rbp,%rsi
  call   <readNextName@plt>
  test   %eax,%eax
  jne    L72
L233:
  mov    0x20(%rsp),%rdi
  mov    %r15,%rcx
  mov    %r13,%rdx
  mov    %rbp,%rsi
  movb   $0x0,0x13(%rsp)
  call   <readNextValue@plt>
  test   %eax,%eax
  jne    L64
  cmpb   $0x6,0x12(%rsp)
  je     L99
L92:
  movzbl 0x13(%rsp),%eax
  cmp    $0x9,%al
  je     L82
  cmp    $0xc,%al
  jne    L114
L82:
  cmpb   $0xa,(%r14)
  je     L143
  movb   $0xc,(%r14)
  cmp    $0xa,%al
  je     L103
  cmp    $0xd,%al
  jne    L226
L103:
  movb   $0xc,(%r14)
  jmp    L226
  nopl   (%rax)
L26:
  cmpb   $0x9,(%r14)
  jne    L103
L143:
  mov    $0x66,%r12d
  jmp    L72
  nopl   0x0(%rax)
L99:
  mov    0x8(%rsp),%rsi
  mov    0x18(%rsp),%rdi
  call   <validateExpression>
  test   %eax,%eax
  je     L92
  mov    %eax,%r12d
  jmp    L72
  nopl   0x0(%rax,%rax,1)
L131:
  mov    %r14,%rsi
  mov    %r15,%rdi
  call   <validateIdentifier@plt>
  mov    %eax,%r12d
  jmp    L72
  nopl   0x0(%rax,%rax,1)
L64:
  mov    0x20(%rsp),%rdi
  mov    %r15,%rcx
  mov    %r13,%rdx
  mov    %rbp,%rsi
  call   <readNextValue@plt>
  mov    %eax,%r12d
  jmp    L72
  nopl   0x0(%rax,%rax,1)
L25:
  mov    $0x69,%r12d
  jmp    L72
L166:
  call   <__stack_chk_fail@plt>
```

assistant: ```c
unsigned int validateExpression(char *rule, unsigned char *expressionType) {
  char *first;
  char *last;
  unsigned char type;
  unsigned int hash;
  unsigned int result;
  result = readNextName(rule, &first, &last, &hash);
  if (result != 0) {
    return result;
  }
  if (hash != 4081054038 && hash != 1040718071 && hash != 304370403 && hash != 130502) {
    return validateIdentifier(rule, expressionType);
  } else {
    result = readNextValue(last, &first, &last, &type);
    if (result != 0) {
      return result;
    }
    *expressionType = 0;
    result = readNextName(first, &first, &last, &hash);
    while (result == 0) {
      unsigned char newExpressionType = 0;
      do {
        if (readNextValue(last, &first, &last, &type) != 0) {
          return readNextValue(last, &first, &last, &type);
        }
      } while (0);
      if (type == 0x06) {
        do {
          unsigned int result = validateExpression(first, &newExpressionType);
          if (result != 0) {
            return result;
          }
        } while (0);
      }
      if (newExpressionType == 0x09 || newExpressionType == 0x0C) {
        if (*expressionType == 0x0A) {
          return 102;
        }
        *expressionType = 0x0C;
      }
      if (newExpressionType == 0x0A || newExpressionType == 0x0D) {
        if (*expressionType == 0x09) {
          return 102;
        }
        *expressionType = 0x0C;
      }
      if (hash != 1706836109 && hash != 1203507539) {
        return 105;
      }
      result = readNextName(last, &first, &last, &hash);
    }
  }
  return 0;
}
```