user: 下面的汇编指令对应的C源代码是什么:

```asm
<rq_tokenizer_get_token>:
  endbr64
  push   %r15
  push   %r14
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  sub    $0x18,%rsp
  mov    %rdi,%rbx
  mov    %rsi,(%rsp)
  mov    %edx,%r14d
  mov    %rcx,%r15
  mov    %r8,%r12
  mov    %r9,%rbp
  jmp    L135
L176:
  add    $0x1,%rax
  mov    %rax,(%rbx)
L135:
  mov    (%rbx),%rax
  movsbl (%rax),%esi
  mov    %r12,%rdi
  call   <strchr@plt>
  test   %rax,%rax
  je     L157
  mov    (%rbx),%rax
  cmpb   $0x0,(%rax)
  jne    L176
  movq   $0x0,(%rsp)
L139:
  mov    (%rsp),%rax
  add    $0x18,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
L157:
  mov    (%rbx),%rax
  movzbl (%rax),%esi
  test   %sil,%sil
  je     L86
  test   %rbp,%rbp
  je     L20
  movsbl %sil,%esi
  mov    %rbp,%rdi
  call   <strchr@plt>
  test   %rax,%rax
  jne    L33
L20:
  cmp    $0x1,%r14d
  jle    L133
  mov    (%rsp),%r13
  mov    %r13,0x8(%rsp)
  sub    $0x1,%r14d
  mov    $0x0,%ebp
L236:
  mov    (%rbx),%rax
  movzbl (%rax),%esi
  test   %sil,%sil
  je     L70
  movsbl %sil,%esi
  mov    %r15,%rdi
  call   <strchr@plt>
  test   %rax,%rax
  jne    L129
  mov    (%rbx),%rax
  movzbl (%rax),%eax
  mov    %al,0x0(%r13)
  add    $0x1,%ebp
  addq   $0x1,(%rbx)
  add    $0x1,%r13
  cmp    %r14d,%ebp
  jne    L236
  mov    %r14d,%ebp
  jmp    L70
L33:
  addq   $0x1,(%rbx)
  cmp    $0x1,%r14d
  jle    L29
  mov    (%rsp),%r13
  sub    $0x1,%r14d
  mov    $0x0,%r12d
L102:
  mov    (%rbx),%rax
  movzbl (%rax),%esi
  test   %sil,%sil
  je     L111
  movsbl %sil,%esi
  mov    %rbp,%rdi
  call   <strchr@plt>
  test   %rax,%rax
  jne    L60
  mov    (%rbx),%rax
  movzbl (%rax),%eax
  mov    %al,0x0(%r13)
  add    $0x1,%r12d
  addq   $0x1,(%rbx)
  add    $0x1,%r13
  cmp    %r14d,%r12d
  jne    L102
  mov    %r14d,%r12d
  jmp    L111
L60:
  addq   $0x1,(%rbx)
L111:
  movslq %r12d,%r12
  mov    (%rsp),%rax
  movb   $0x0,(%rax,%r12,1)
  jmp    L139
L29:
  mov    $0x0,%r12d
  jmp    L111
L129:
  addq   $0x1,(%rbx)
L70:
  movslq %ebp,%rax
  mov    (%rsp),%rcx
  movb   $0x0,(%rcx,%rax,1)
  lea    -0x1(%rbp),%ebx
  test   %ebx,%ebx
  jle    L139
  movslq %ebx,%rbx
  add    %rcx,%rbx
  mov    0x8(%rsp),%rdx
  lea    -0x2(%rdx,%rax,1),%rdx
  lea    -0x2(%rbp),%eax
  sub    %rax,%rdx
  mov    %rdx,%rbp
L127:
  movsbl (%rbx),%esi
  mov    %r12,%rdi
  call   <strchr@plt>
  test   %rax,%rax
  je     L139
  movb   $0x0,(%rbx)
  sub    $0x1,%rbx
  cmp    %rbp,%rbx
  jne    L127
  jmp    L139
L86:
  movq   $0x0,(%rsp)
  jmp    L139
L133:
  mov    (%rsp),%rax
  movb   $0x0,(%rax)
  jmp    L139
```

assistant: ```c
const char *rq_tokenizer_get_token(const char **pptr, char *tok, int maxtoklen, const char *delims, const char *white, const char *quotes) {
  int in_quote = 0;
  while (strchr(white, **pptr))
    if (**pptr != '\0')
      (*pptr)++;
    else
      break;
  if (**pptr == '\0')
    return NULL;
  if (quotes)
    if (strchr(quotes, **pptr)) {
      (*pptr)++;
      in_quote = 1;
    }
  if (in_quote) {
    int i;
    for (i = 0; i < maxtoklen - 1; i++, (*pptr)++)
      if (**pptr == '\0')
        break;
      else if (strchr(quotes, **pptr)) {
        (*pptr)++;
        break;
      } else
        *(tok + i) = **pptr;
    *(tok + i) = '\0';
  } else {
    int i;
    for (i = 0; i < maxtoklen - 1; i++, (*pptr)++)
      if (**pptr == '\0')
        break;
      else if (strchr(delims, **pptr)) {
        (*pptr)++;
        break;
      } else
        *(tok + i) = **pptr;
    *(tok + i) = '\0';
    for (i--; i > 0; i--)
      if (strchr(white, *(tok + i)))
        *(tok + i) = '\0';
      else
        break;
  }
  return tok;
}
```