user: What is the c source code of the assembly code below:

```asm
<break_line>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x40,%rsp
  mov    %rdi,-0x38(%rbp)
  mov    %rsi,-0x40(%rbp)
  movq   $0x0,-0x18(%rbp)
  movq   $0x0,-0x10(%rbp)
  movl   $0x0,-0x20(%rbp)
  jmp    L211
L61:
  movb   $0x0,-0x21(%rbp)
  mov    -0x38(%rbp),%rax
  movzbl (%rax),%eax
  cmp    $0x22,%al
  je     L176
  mov    -0x38(%rbp),%rax
  movzbl (%rax),%eax
  cmp    $0x27,%al
  jne    L163
L176:
  mov    -0x38(%rbp),%rax
  lea    0x1(%rax),%rdx
  mov    %rdx,-0x38(%rbp)
  movzbl (%rax),%eax
  mov    %al,-0x21(%rbp)
L163:
  mov    -0x38(%rbp),%rax
  mov    %rax,-0x10(%rbp)
  jmp    L224
L188:
  mov    -0x38(%rbp),%rax
  movzbl (%rax),%eax
  cmp    $0x5c,%al
  jne    L125
  addq   $0x2,-0x38(%rbp)
  jmp    L224
L125:
  cmpb   $0x0,-0x21(%rbp)
  je     L18
  mov    -0x38(%rbp),%rax
  movzbl (%rax),%eax
  cmp    %al,-0x21(%rbp)
  je     L18
  addq   $0x1,-0x38(%rbp)
  jmp    L224
L18:
  mov    -0x38(%rbp),%rax
  movzbl (%rax),%eax
  cmp    $0x2c,%al
  je     L83
  addq   $0x1,-0x38(%rbp)
L224:
  mov    -0x38(%rbp),%rax
  movzbl (%rax),%eax
  test   %al,%al
  jne    L188
  jmp    L146
L83:
  nop
  jmp    L146
L1:
  addq   $0x1,-0x10(%rbp)
L146:
  mov    -0x10(%rbp),%rax
  movzbl (%rax),%eax
  test   %al,%al
  je     L74
  mov    -0x10(%rbp),%rax
  movzbl (%rax),%eax
  cmp    $0x20,%al
  je     L1
  mov    -0x10(%rbp),%rax
  movzbl (%rax),%eax
  cmp    $0x9,%al
  je     L1
L74:
  mov    -0x38(%rbp),%rax
  sub    -0x10(%rbp),%rax
  mov    %eax,-0x1c(%rbp)
  cmpb   $0x0,-0x21(%rbp)
  je     L49
  mov    -0x38(%rbp),%rax
  movzbl (%rax),%eax
  cmp    %al,-0x21(%rbp)
  jne    L49
  subl   $0x1,-0x1c(%rbp)
  jmp    L49
L108:
  subl   $0x1,-0x1c(%rbp)
L49:
  cmpl   $0x0,-0x1c(%rbp)
  je     L242
  mov    -0x1c(%rbp),%eax
  cltq
  lea    -0x1(%rax),%rdx
  mov    -0x10(%rbp),%rax
  add    %rdx,%rax
  movzbl (%rax),%eax
  cmp    $0x20,%al
  je     L108
  mov    -0x1c(%rbp),%eax
  cltq
  lea    -0x1(%rax),%rdx
  mov    -0x10(%rbp),%rax
  add    %rdx,%rax
  movzbl (%rax),%eax
  cmp    $0x9,%al
  je     L108
L242:
  mov    -0x1c(%rbp),%eax
  add    $0x1,%eax
  mov    %eax,%edi
  call   <malloc@plt>
  mov    %rax,-0x8(%rbp)
  mov    -0x1c(%rbp),%edx
  mov    -0x10(%rbp),%rcx
  mov    -0x8(%rbp),%rax
  mov    %rcx,%rsi
  mov    %rax,%rdi
  call   <strncpy@plt>
  mov    -0x1c(%rbp),%eax
  movslq %eax,%rdx
  mov    -0x8(%rbp),%rax
  add    %rdx,%rax
  movb   $0x0,(%rax)
  addl   $0x1,-0x20(%rbp)
  mov    -0x20(%rbp),%eax
  add    $0x1,%eax
  cltq
  shl    $0x3,%eax
  mov    %eax,%edx
  mov    -0x18(%rbp),%rax
  mov    %edx,%esi
  mov    %rax,%rdi
  call   <realloc@plt>
  mov    %rax,-0x18(%rbp)
  mov    -0x20(%rbp),%eax
  cltq
  shl    $0x3,%rax
  lea    -0x8(%rax),%rdx
  mov    -0x18(%rbp),%rax
  add    %rax,%rdx
  mov    -0x8(%rbp),%rax
  mov    %rax,(%rdx)
  mov    -0x20(%rbp),%eax
  cltq
  lea    0x0(,%rax,8),%rdx
  mov    -0x18(%rbp),%rax
  add    %rdx,%rax
  movq   $0x0,(%rax)
  mov    -0x38(%rbp),%rax
  movzbl (%rax),%eax
  test   %al,%al
  je     L211
  addq   $0x1,-0x38(%rbp)
L211:
  cmpq   $0x0,-0x38(%rbp)
  je     L124
  mov    -0x38(%rbp),%rax
  movzbl (%rax),%eax
  test   %al,%al
  jne    L61
L124:
  mov    -0x40(%rbp),%rax
  mov    -0x20(%rbp),%edx
  mov    %edx,(%rax)
  mov    -0x18(%rbp),%rax
  leave
  ret
```

assistant: ```c
char **break_line(const char *b, int *n) {
  char **ret = NULL;
  char *t = NULL, *s;
  char term;
  int n_strs = 0, len;
  while (b && *b) {
    term = 0;
    if (*b == '"' || *b == '\'')
      term = *b++;
    t = (char *)b;
    while (*b) {
      if (*b == '\\')
        b += 2;
      else if (term && *b != term)
        b++;
      else if (*b != ',')
        b++;
      else
        break;
    }
    while (*t && (*t == ' ' || *t == '\t'))
      t++;
    len = b - t;
    if (term && *b == term)
      len--;
    while (len && (t[len - 1] == ' ' || t[len - 1] == '\t'))
      len--;
    s = malloc(len + 1);
    strncpy(s, t, len);
    s[len] = 0;
    n_strs++;
    ret = realloc(ret, (n_strs + 1) * sizeof(char *));
    ret[n_strs - 1] = s;
    ret[n_strs] = NULL;
    if (*b)
      b++;
  }
  *n = n_strs;
  return ret;
}
```