user: 提供的汇编代码用C语言表示会是什么样子：

```asm
<token_next_from_string>:
  endbr64
  push   %rbx
  mov    %rdi,%r10
  mov    %rsi,%r9
  mov    %rdx,%r11
  mov    %ecx,%ebx
  mov    (%rdx),%ecx
  movslq %ecx,%rax
  lea    (%rsi,%rax,1),%rdi
  movzbl (%rdi),%edx
  mov    %ecx,%esi
  cmp    $0x20,%dl
  ja     L239
  movabs $0x100002600,%rsi
  bt     %rdx,%rsi
  jae    L234
  lea    0x1(%r9,%rax,1),%rdx
  mov    %rdx,%rax
  add    $0x1,%ecx
  sub    %edx,%ecx
  mov    %rsi,%r8
  jmp    L27
L197:
  add    $0x1,%rax
  bt     %rdx,%r8
  jae    L239
L27:
  lea    (%rcx,%rax,1),%esi
  mov    %rax,%rdi
  movzbl (%rax),%edx
  cmp    $0x20,%dl
  jbe    L197
L239:
  mov    %esi,(%r11)
  movzbl (%rdi),%edx
  mov    $0x0,%eax
  test   %dl,%dl
  jne    L264
L164:
  pop    %rbx
  ret
L234:
  mov    %ecx,%esi
  jmp    L239
L264:
  cmp    $0x22,%dl
  je     L252
  movslq %esi,%rax
  movzbl (%r9,%rax,1),%edx
  cmp    $0x20,%dl
  ja     L142
  movabs $0x100002601,%rax
  bt     %rdx,%rax
  jb     L124
L142:
  lea    0x1(%rsi),%eax
  cltq
  mov    $0x0,%esi
  sub    $0x1,%ebx
  movabs $0x100002601,%rdi
  jmp    L85
L124:
  mov    %esi,%ecx
  mov    $0x0,%esi
  jmp    L12
L252:
  lea    0x1(%rsi),%ecx
  movslq %ecx,%rdi
  add    %r9,%rdi
  movzbl (%rdi),%edx
  cmp    $0x22,%dl
  je     L2
  test   %dl,%dl
  je     L2
  lea    0x2(%rsi),%eax
  cltq
  mov    $0x0,%esi
  sub    $0x1,%ebx
  jmp    L83
L120:
  mov    %eax,%ecx
  lea    (%r9,%rax,1),%rdi
  movzbl (%r9,%rax,1),%edx
  add    $0x1,%rax
  cmp    $0x22,%dl
  je     L286
  test   %dl,%dl
  je     L286
L83:
  cmp    %esi,%ebx
  jle    L120
  movslq %esi,%rcx
  mov    %dl,(%r10,%rcx,1)
  lea    0x1(%rsi),%esi
  jmp    L120
L2:
  mov    $0x0,%esi
L286:
  movslq %esi,%rsi
  movb   $0x0,(%r10,%rsi,1)
  cmpb   $0x22,(%rdi)
  sete   %al
  movzbl %al,%eax
  add    %eax,%ecx
  jmp    L245
L176:
  add    $0x1,%rax
  bt     %rdx,%rsi
  jae    L201
L4:
  mov    %eax,%ecx
  movzbl (%r9,%rax,1),%edx
  cmp    $0x20,%dl
  jbe    L176
L201:
  mov    %ecx,(%r11)
  mov    $0xffffffff,%eax
  jmp    L164
L274:
  add    $0x1,%rax
L85:
  cmp    %esi,%ebx
  jle    L105
  movslq %esi,%rcx
  mov    %dl,(%r10,%rcx,1)
  lea    0x1(%rsi),%esi
L105:
  mov    %eax,%ecx
  movzbl (%r9,%rax,1),%edx
  cmp    $0x20,%dl
  ja     L274
  add    $0x1,%rax
  bt     %rdx,%rdi
  jae    L85
L12:
  movslq %esi,%rsi
  movb   $0x0,(%r10,%rsi,1)
L245:
  movslq %ecx,%rax
  movzbl (%r9,%rax,1),%eax
  cmp    $0x20,%al
  ja     L201
  movabs $0x100002600,%rdx
  bt     %rax,%rdx
  jae    L201
  lea    0x1(%rcx),%eax
  cltq
  movabs $0x100002600,%rsi
  jmp    L4
```

assistant: ```c
int token_next_from_string(char *dst, char *src, int *index, int max) {
  int i, j;
  i = (*index);
  for (; src[i] == ' ' || src[i] == '\t' || src[i] == '\n' || src[i] == '\r'; i++)
    ;
  (*index) = i;
  if (src[i] == '\0')
    return (0);
  if (src[i] == '\"') {
    for (j = 0, i++; src[i] != '\"' && src[i] != '\0'; i++) {
      if (j < max - 1)
        dst[j++] = src[i];
    }
    dst[j] = '\0';
    if (src[i] == '\"')
      i++;
  } else {
    for (j = 0; src[i] != ' ' && src[i] != '\t' && src[i] != '\n' && src[i] != '\r' && src[i] != '\0'; i++)
      if (j < max - 1)
        dst[j++] = src[i];
    dst[j] = '\0';
  }
  for (; src[i] == ' ' || src[i] == '\t' || src[i] == '\n' || src[i] == '\r'; i++)
    ;
  (*index) = i;
  return (-1);
}
```