user: 提供的汇编代码用C语言表示会是什么样子:

```asm
<backslash_eliminate>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  push   %r13
  push   %r12
  push   %rbx
  sub    $0x38,%rsp
  mov    %rdi,-0x48(%rbp)
  mov    %esi,-0x4c(%rbp)
  mov    %edx,-0x50(%rbp)
  movl   $0x64,-0x34(%rbp)
  movl   $0x0,-0x30(%rbp)
  mov    $0x0,%ebx
  mov    $0x0,%r13d
  movl   $0x0,-0x2c(%rbp)
  cmpl   $0x1,-0x4c(%rbp)
  jne    L346
  mov    -0x48(%rbp),%rax
  mov    %rax,%rdi
  call   <strlen@plt>
  mov    %rax,%rdx
  mov    -0x34(%rbp),%eax
  cltq
  add    %rdx,%rax
  lea    0x1(%rax),%rdx
  mov    -0x50(%rbp),%eax
  mov    %rdx,%rsi
  mov    %eax,%edi
  mov    $0x0,%eax
  call   <mem@plt>
  cltq
  mov    %rax,-0x28(%rbp)
  cmpq   $0x0,-0x28(%rbp)
  jne    L198
  mov    $0x0,%eax
  jmp    L61
L346:
  mov    -0x48(%rbp),%rax
  mov    %rax,-0x28(%rbp)
  jmp    L198
L416:
  test   %r13d,%r13d
  je     L727
  mov    $0x0,%r13d
  mov    -0x48(%rbp),%rax
  movzbl (%rax),%eax
  movsbl %al,%eax
  sub    $0x2d,%eax
  cmp    $0x50,%eax
  ja     L56
  mov    %eax,%eax
  lea    0x0(,%rax,4),%rdx
  lea    D6(%rip),%rax
  mov    (%rdx,%rax,1),%eax
  cltq
  lea    D6(%rip),%rdx
  add    %rdx,%rax
  notrack jmp *%rax
  mov    %ebx,%eax
  lea    0x1(%rax),%ebx
  movslq %eax,%rdx
  mov    -0x28(%rbp),%rax
  add    %rdx,%rax
  movb   $0x5c,(%rax)
  addq   $0x1,-0x48(%rbp)
  jmp    L198
  cmpl   $0x0,-0x30(%rbp)
  je     L955
  mov    %ebx,%eax
  lea    0x1(%rax),%ebx
  movslq %eax,%rdx
  mov    -0x28(%rbp),%rax
  add    %rdx,%rax
  movb   $0x5c,(%rax)
L955:
  mov    %ebx,%eax
  lea    0x1(%rax),%ebx
  movslq %eax,%rdx
  mov    -0x28(%rbp),%rax
  add    %rdx,%rax
  movb   $0x2d,(%rax)
  addq   $0x1,-0x48(%rbp)
  jmp    L198
  cmpl   $0x0,-0x30(%rbp)
  je     L425
  mov    %ebx,%eax
  lea    0x1(%rax),%ebx
  movslq %eax,%rdx
  mov    -0x28(%rbp),%rax
  add    %rdx,%rax
  movb   $0x5c,(%rax)
L425:
  mov    %ebx,%eax
  lea    0x1(%rax),%ebx
  movslq %eax,%rdx
  mov    -0x28(%rbp),%rax
  add    %rdx,%rax
  movb   $0x7d,(%rax)
  addq   $0x1,-0x48(%rbp)
  jmp    L198
  mov    %ebx,%eax
  lea    0x1(%rax),%ebx
  movslq %eax,%rdx
  mov    -0x28(%rbp),%rax
  add    %rdx,%rax
  movb   $0xa,(%rax)
  addq   $0x1,-0x48(%rbp)
  jmp    L198
  mov    %ebx,%eax
  lea    0x1(%rax),%ebx
  movslq %eax,%rdx
  mov    -0x28(%rbp),%rax
  add    %rdx,%rax
  movb   $0x9,(%rax)
  addq   $0x1,-0x48(%rbp)
  jmp    L198
  mov    %ebx,%eax
  lea    0x1(%rax),%ebx
  movslq %eax,%rdx
  mov    -0x28(%rbp),%rax
  add    %rdx,%rax
  movb   $0x20,(%rax)
  addq   $0x1,-0x48(%rbp)
  jmp    L198
  mov    %ebx,%eax
  lea    0x1(%rax),%ebx
  movslq %eax,%rdx
  mov    -0x28(%rbp),%rax
  add    %rdx,%rax
  movb   $0xd,(%rax)
  addq   $0x1,-0x48(%rbp)
  jmp    L198
  mov    %ebx,%eax
  lea    0x1(%rax),%ebx
  movslq %eax,%rdx
  mov    -0x28(%rbp),%rax
  add    %rdx,%rax
  movb   $0xc,(%rax)
  addq   $0x1,-0x48(%rbp)
  jmp    L198
  mov    %ebx,%eax
  lea    0x1(%rax),%ebx
  movslq %eax,%rdx
  mov    -0x28(%rbp),%rax
  add    %rdx,%rax
  movb   $0x8,(%rax)
  addq   $0x1,-0x48(%rbp)
  jmp    L198
  mov    %ebx,%eax
  lea    0x1(%rax),%ebx
  movslq %eax,%rdx
  mov    -0x28(%rbp),%rax
  add    %rdx,%rax
  movb   $0xb,(%rax)
  addq   $0x1,-0x48(%rbp)
  jmp    L198
  addq   $0x1,-0x48(%rbp)
  jmp    L198
  mov    -0x48(%rbp),%rax
  movzbl (%rax),%eax
  cmp    $0x2f,%al
  jle    L588
  mov    -0x48(%rbp),%rax
  movzbl (%rax),%eax
  cmp    $0x33,%al
  jg     L588
  mov    -0x48(%rbp),%rax
  add    $0x1,%rax
  movzbl (%rax),%eax
  cmp    $0x2f,%al
  jle    L588
  mov    -0x48(%rbp),%rax
  add    $0x1,%rax
  movzbl (%rax),%eax
  cmp    $0x37,%al
  jg     L588
  mov    -0x48(%rbp),%rax
  add    $0x2,%rax
  movzbl (%rax),%eax
  cmp    $0x2f,%al
  jle    L588
  mov    -0x48(%rbp),%rax
  add    $0x2,%rax
  movzbl (%rax),%eax
  cmp    $0x37,%al
  jg     L588
  mov    -0x48(%rbp),%rax
  movzbl (%rax),%eax
  movsbl %al,%eax
  sub    $0x30,%eax
  cmp    $0x9,%eax
  ja     L904
  mov    -0x48(%rbp),%rax
  movzbl (%rax),%eax
  sub    $0x30,%eax
  shl    $0x6,%eax
  mov    %eax,%r12d
  jmp    L898
L904:
  mov    -0x48(%rbp),%rax
  movzbl (%rax),%eax
  movsbl %al,%eax
  mov    %eax,%edi
  call   <islower@plt>
  test   %eax,%eax
  je     L344
  mov    -0x48(%rbp),%rax
  movzbl (%rax),%eax
  sub    $0x57,%eax
  shl    $0x6,%eax
  mov    %eax,%r12d
  jmp    L898
L344:
  mov    -0x48(%rbp),%rax
  movzbl (%rax),%eax
  sub    $0x37,%eax
  shl    $0x6,%eax
  mov    %eax,%r12d
L898:
  mov    -0x48(%rbp),%rax
  add    $0x1,%rax
  movzbl (%rax),%eax
  movsbl %al,%eax
  sub    $0x30,%eax
  cmp    $0x9,%eax
  ja     L785
  mov    -0x48(%rbp),%rax
  add    $0x1,%rax
  movzbl (%rax),%eax
  sub    $0x30,%eax
  shl    $0x3,%eax
  jmp    L170
L785:
  mov    -0x48(%rbp),%rax
  add    $0x1,%rax
  movzbl (%rax),%eax
  movsbl %al,%eax
  mov    %eax,%edi
  call   <islower@plt>
  test   %eax,%eax
  je     L362
  mov    -0x48(%rbp),%rax
  add    $0x1,%rax
  movzbl (%rax),%eax
  sub    $0x57,%eax
  shl    $0x3,%eax
  jmp    L170
L362:
  mov    -0x48(%rbp),%rax
  add    $0x1,%rax
  movzbl (%rax),%eax
  sub    $0x37,%eax
  shl    $0x3,%eax
L170:
  add    %eax,%r12d
  mov    -0x48(%rbp),%rax
  add    $0x2,%rax
  movzbl (%rax),%eax
  movsbl %al,%eax
  sub    $0x30,%eax
  cmp    $0x9,%eax
  ja     L54
  mov    -0x48(%rbp),%rax
  add    $0x2,%rax
  movzbl (%rax),%eax
  sub    $0x30,%eax
  jmp    L0
L54:
  mov    -0x48(%rbp),%rax
  add    $0x2,%rax
  movzbl (%rax),%eax
  movsbl %al,%eax
  mov    %eax,%edi
  call   <islower@plt>
  test   %eax,%eax
  je     L294
  mov    -0x48(%rbp),%rax
  add    $0x2,%rax
  movzbl (%rax),%eax
  sub    $0x57,%eax
  jmp    L0
L294:
  mov    -0x48(%rbp),%rax
  add    $0x2,%rax
  movzbl (%rax),%eax
  sub    $0x37,%eax
L0:
  add    %r12d,%eax
  mov    %al,-0x35(%rbp)
  cmpb   $0x0,-0x35(%rbp)
  jne    L1065
  mov    $0x0,%eax
  jmp    L61
L1065:
  mov    %ebx,%eax
  lea    0x1(%rax),%ebx
  movslq %eax,%rdx
  mov    -0x28(%rbp),%rax
  add    %rax,%rdx
  movzbl -0x35(%rbp),%eax
  mov    %al,(%rdx)
  addq   $0x3,-0x48(%rbp)
  jmp    L198
L588:
  mov    -0x48(%rbp),%rax
  movzbl (%rax),%eax
  cmp    $0x30,%al
  jne    L1082
  mov    -0x48(%rbp),%rax
  add    $0x1,%rax
  movzbl (%rax),%eax
  cmp    $0x78,%al
  je     L678
  mov    -0x48(%rbp),%rax
  add    $0x1,%rax
  movzbl (%rax),%eax
  cmp    $0x58,%al
  jne    L1082
L678:
  mov    -0x48(%rbp),%rax
  add    $0x2,%rax
  movzbl (%rax),%eax
  movsbl %al,%eax
  mov    %eax,%edi
  call   <isxdigit@plt>
  test   %eax,%eax
  je     L1082
  mov    -0x48(%rbp),%rax
  add    $0x2,%rax
  movzbl (%rax),%eax
  movsbl %al,%eax
  sub    $0x30,%eax
  cmp    $0x9,%eax
  ja     L553
  mov    -0x48(%rbp),%rax
  add    $0x2,%rax
  movzbl (%rax),%eax
  sub    $0x30,%eax
  jmp    L621
L553:
  mov    -0x48(%rbp),%rax
  add    $0x2,%rax
  movzbl (%rax),%eax
  movsbl %al,%eax
  mov    %eax,%edi
  call   <islower@plt>
  test   %eax,%eax
  je     L119
  mov    -0x48(%rbp),%rax
  add    $0x2,%rax
  movzbl (%rax),%eax
  sub    $0x57,%eax
  jmp    L621
L119:
  mov    -0x48(%rbp),%rax
  add    $0x2,%rax
  movzbl (%rax),%eax
  sub    $0x37,%eax
L621:
  mov    %al,-0x35(%rbp)
  mov    -0x48(%rbp),%rax
  add    $0x3,%rax
  movzbl (%rax),%eax
  movsbl %al,%eax
  mov    %eax,%edi
  call   <isxdigit@plt>
  test   %eax,%eax
  je     L779
  movzbl -0x35(%rbp),%eax
  shl    $0x4,%eax
  mov    %eax,%r12d
  mov    -0x48(%rbp),%rax
  add    $0x3,%rax
  movzbl (%rax),%eax
  movsbl %al,%eax
  sub    $0x30,%eax
  cmp    $0x9,%eax
  ja     L581
  mov    -0x48(%rbp),%rax
  add    $0x3,%rax
  movzbl (%rax),%eax
  sub    $0x30,%eax
  jmp    L226
L581:
  mov    -0x48(%rbp),%rax
  add    $0x3,%rax
  movzbl (%rax),%eax
  movsbl %al,%eax
  mov    %eax,%edi
  call   <islower@plt>
  test   %eax,%eax
  je     L542
  mov    -0x48(%rbp),%rax
  add    $0x3,%rax
  movzbl (%rax),%eax
  sub    $0x57,%eax
  jmp    L226
L542:
  mov    -0x48(%rbp),%rax
  add    $0x3,%rax
  movzbl (%rax),%eax
  sub    $0x37,%eax
L226:
  add    %r12d,%eax
  mov    %al,-0x35(%rbp)
  addq   $0x4,-0x48(%rbp)
  jmp    L329
L779:
  addq   $0x3,-0x48(%rbp)
L329:
  cmpb   $0x0,-0x35(%rbp)
  jne    L496
  mov    $0x0,%eax
  jmp    L61
L496:
  mov    %ebx,%eax
  lea    0x1(%rax),%ebx
  movslq %eax,%rdx
  mov    -0x28(%rbp),%rax
  add    %rax,%rdx
  movzbl -0x35(%rbp),%eax
  mov    %al,(%rdx)
  jmp    L198
L1082:
  mov    -0x48(%rbp),%rax
  add    $0x1,%rax
  movzbl (%rax),%eax
  movsbl %al,%eax
  sub    $0x30,%eax
  cmp    $0x9,%eax
  ja     L421
  mov    -0x48(%rbp),%rax
  movzbl (%rax),%eax
  movsbl %al,%eax
  sub    $0x30,%eax
  cmp    $0x9,%eax
  ja     L148
  mov    -0x48(%rbp),%rax
  movzbl (%rax),%eax
  movsbl %al,%eax
  sub    $0x30,%eax
  mov    %eax,%edx
  mov    %edx,%eax
  shl    $0x2,%eax
  add    %edx,%eax
  add    %eax,%eax
  mov    %eax,%r12d
  jmp    L909
L148:
  mov    -0x48(%rbp),%rax
  movzbl (%rax),%eax
  movsbl %al,%eax
  mov    %eax,%edi
  call   <islower@plt>
  test   %eax,%eax
  je     L769
  mov    -0x48(%rbp),%rax
  movzbl (%rax),%eax
  movsbl %al,%eax
  sub    $0x57,%eax
  mov    %eax,%edx
  mov    %edx,%eax
  shl    $0x2,%eax
  add    %edx,%eax
  add    %eax,%eax
  mov    %eax,%r12d
  jmp    L909
L769:
  mov    -0x48(%rbp),%rax
  movzbl (%rax),%eax
  movsbl %al,%eax
  sub    $0x37,%eax
  mov    %eax,%edx
  mov    %edx,%eax
  shl    $0x2,%eax
  add    %edx,%eax
  add    %eax,%eax
  mov    %eax,%r12d
L909:
  mov    -0x48(%rbp),%rax
  add    $0x1,%rax
  movzbl (%rax),%eax
  movsbl %al,%eax
  sub    $0x30,%eax
  cmp    $0x9,%eax
  ja     L1042
  mov    -0x48(%rbp),%rax
  add    $0x1,%rax
  movzbl (%rax),%eax
  sub    $0x30,%eax
  jmp    L381
L1042:
  mov    -0x48(%rbp),%rax
  add    $0x1,%rax
  movzbl (%rax),%eax
  movsbl %al,%eax
  mov    %eax,%edi
  call   <islower@plt>
  test   %eax,%eax
  je     L908
  mov    -0x48(%rbp),%rax
  add    $0x1,%rax
  movzbl (%rax),%eax
  sub    $0x57,%eax
  jmp    L381
L908:
  mov    -0x48(%rbp),%rax
  add    $0x1,%rax
  movzbl (%rax),%eax
  sub    $0x37,%eax
L381:
  add    %r12d,%eax
  mov    %al,-0x35(%rbp)
  mov    -0x48(%rbp),%rax
  add    $0x2,%rax
  movzbl (%rax),%eax
  movsbl %al,%eax
  sub    $0x30,%eax
  cmp    $0x9,%eax
  ja     L734
  movzbl -0x35(%rbp),%edx
  mov    %edx,%eax
  shl    $0x2,%eax
  add    %edx,%eax
  add    %eax,%eax
  mov    %eax,%r12d
  mov    -0x48(%rbp),%rax
  add    $0x2,%rax
  movzbl (%rax),%eax
  movsbl %al,%eax
  sub    $0x30,%eax
  cmp    $0x9,%eax
  ja     L682
  mov    -0x48(%rbp),%rax
  add    $0x2,%rax
  movzbl (%rax),%eax
  sub    $0x30,%eax
  jmp    L1046
L682:
  mov    -0x48(%rbp),%rax
  add    $0x2,%rax
  movzbl (%rax),%eax
  movsbl %al,%eax
  mov    %eax,%edi
  call   <islower@plt>
  test   %eax,%eax
  je     L104
  mov    -0x48(%rbp),%rax
  add    $0x2,%rax
  movzbl (%rax),%eax
  sub    $0x57,%eax
  jmp    L1046
L104:
  mov    -0x48(%rbp),%rax
  add    $0x2,%rax
  movzbl (%rax),%eax
  sub    $0x37,%eax
L1046:
  add    %r12d,%eax
  mov    %al,-0x35(%rbp)
  addq   $0x3,-0x48(%rbp)
  jmp    L780
L734:
  addq   $0x2,-0x48(%rbp)
L780:
  cmpb   $0x0,-0x35(%rbp)
  jne    L858
  mov    $0x0,%eax
  jmp    L61
L858:
  mov    %ebx,%eax
  lea    0x1(%rax),%ebx
  movslq %eax,%rdx
  mov    -0x28(%rbp),%rax
  add    %rax,%rdx
  movzbl -0x35(%rbp),%eax
  mov    %al,(%rdx)
  jmp    L198
L421:
  mov    -0x48(%rbp),%rax
  movzbl (%rax),%eax
  cmp    $0x30,%al
  jne    L1077
  cmpl   $0x0,-0x4c(%rbp)
  jne    L1077
  mov    $0x0,%eax
  jmp    L61
L1077:
  cmpl   $0x2,-0x4c(%rbp)
  jne    L766
  mov    -0x48(%rbp),%rax
  movzbl (%rax),%eax
  movsbl %al,%eax
  sub    $0x30,%eax
  cmp    $0x9,%eax
  ja     L852
  mov    -0x48(%rbp),%rax
  movzbl (%rax),%eax
  sub    $0x30,%eax
  jmp    L517
L852:
  mov    -0x48(%rbp),%rax
  movzbl (%rax),%eax
  movsbl %al,%eax
  mov    %eax,%edi
  call   <islower@plt>
  test   %eax,%eax
  je     L862
  mov    -0x48(%rbp),%rax
  movzbl (%rax),%eax
  sub    $0x57,%eax
  jmp    L517
L862:
  mov    -0x48(%rbp),%rax
  movzbl (%rax),%eax
  sub    $0x37,%eax
L517:
  mov    %al,-0x35(%rbp)
  cmpb   $0x0,-0x35(%rbp)
  jne    L604
  mov    $0x0,%eax
  jmp    L61
L604:
  mov    %ebx,%eax
  lea    0x1(%rax),%ebx
  movslq %eax,%rdx
  mov    -0x28(%rbp),%rax
  add    %rax,%rdx
  movzbl -0x35(%rbp),%eax
  mov    %al,(%rdx)
  addq   $0x1,-0x48(%rbp)
  jmp    L198
L766:
  mov    %ebx,%eax
  lea    0x1(%rax),%ebx
  movslq %eax,%rdx
  mov    -0x28(%rbp),%rax
  add    %rdx,%rax
  movb   $0x5c,(%rax)
  mov    -0x48(%rbp),%rax
  lea    0x1(%rax),%rdx
  mov    %rdx,-0x48(%rbp)
  mov    %ebx,%edx
  lea    0x1(%rdx),%ebx
  movslq %edx,%rcx
  mov    -0x28(%rbp),%rdx
  add    %rcx,%rdx
  movzbl (%rax),%eax
  mov    %al,(%rdx)
  jmp    L198
L56:
  cmpl   $0x0,-0x4c(%rbp)
  jne    L490
  mov    %ebx,%eax
  lea    0x1(%rax),%ebx
  movslq %eax,%rdx
  mov    -0x28(%rbp),%rax
  add    %rdx,%rax
  movb   $0x5c,(%rax)
L490:
  mov    -0x48(%rbp),%rax
  lea    0x1(%rax),%rdx
  mov    %rdx,-0x48(%rbp)
  mov    %ebx,%edx
  lea    0x1(%rdx),%ebx
  movslq %edx,%rcx
  mov    -0x28(%rbp),%rdx
  add    %rcx,%rdx
  movzbl (%rax),%eax
  mov    %al,(%rdx)
  nop
  jmp    L198
L727:
  mov    -0x48(%rbp),%rax
  movzbl (%rax),%eax
  cmp    $0x5c,%al
  jne    L650
  mov    $0x1,%r13d
  addq   $0x1,-0x48(%rbp)
  jmp    L198
L650:
  cmpl   $0x1,-0x4c(%rbp)
  jne    L981
  mov    -0x48(%rbp),%rax
  movzbl (%rax),%eax
  cmp    $0x7d,%al
  jne    L981
  mov    -0x48(%rbp),%rax
  add    $0x1,%rax
  movzbl (%rax),%eax
  cmp    $0x7b,%al
  jne    L317
  cmpl   $0x0,-0x2c(%rbp)
  je     L317
  mov    -0x48(%rbp),%rax
  lea    0x1(%rax),%rdx
  mov    %rdx,-0x48(%rbp)
  mov    %ebx,%edx
  lea    0x1(%rdx),%ebx
  movslq %edx,%rcx
  mov    -0x28(%rbp),%rdx
  add    %rcx,%rdx
  movzbl (%rax),%eax
  mov    %al,(%rdx)
  mov    -0x48(%rbp),%rax
  lea    0x1(%rax),%rdx
  mov    %rdx,-0x48(%rbp)
  mov    %ebx,%edx
  lea    0x1(%rdx),%ebx
  movslq %edx,%rcx
  mov    -0x28(%rbp),%rdx
  add    %rcx,%rdx
  movzbl (%rax),%eax
  mov    %al,(%rdx)
  movl   $0x0,-0x2c(%rbp)
  jmp    L957
L317:
  movl   $0x0,-0x30(%rbp)
  mov    -0x48(%rbp),%rax
  lea    0x1(%rax),%rdx
  mov    %rdx,-0x48(%rbp)
  mov    %ebx,%edx
  lea    0x1(%rdx),%ebx
  movslq %edx,%rcx
  mov    -0x28(%rbp),%rdx
  add    %rcx,%rdx
  movzbl (%rax),%eax
  mov    %al,(%rdx)
L957:
  jmp    L198
L981:
  cmpl   $0x1,-0x4c(%rbp)
  jne    L950
  cmpl   $0x0,-0x30(%rbp)
  jne    L950
  mov    -0x48(%rbp),%rax
  movzbl (%rax),%eax
  cmp    $0x7b,%al
  jne    L950
  movl   $0x1,-0x30(%rbp)
  movl   $0x1,-0x2c(%rbp)
  cmp    $0x1,%ebx
  jle    L493
  movslq %ebx,%rax
  lea    -0x2(%rax),%rdx
  mov    -0x28(%rbp),%rax
  add    %rdx,%rax
  movzbl (%rax),%eax
  cmp    $0x5c,%al
  jne    L493
  movslq %ebx,%rax
  lea    -0x1(%rax),%rdx
  mov    -0x28(%rbp),%rax
  add    %rdx,%rax
  movzbl (%rax),%eax
  cmp    $0x2f,%al
  jle    L493
  movslq %ebx,%rax
  lea    -0x1(%rax),%rdx
  mov    -0x28(%rbp),%rax
  add    %rdx,%rax
  movzbl (%rax),%eax
  cmp    $0x39,%al
  jle    L244
L493:
  subl   $0x2,-0x34(%rbp)
  cmpl   $0x0,-0x34(%rbp)
  jns    L717
  mov    $0x0,%eax
  jmp    L61
L717:
  mov    %ebx,%eax
  lea    0x1(%rax),%ebx
  movslq %eax,%rdx
  mov    -0x28(%rbp),%rax
  add    %rdx,%rax
  movb   $0x5c,(%rax)
  mov    %ebx,%eax
  lea    0x1(%rax),%ebx
  movslq %eax,%rdx
  mov    -0x28(%rbp),%rax
  add    %rdx,%rax
  movb   $0x30,(%rax)
L244:
  mov    -0x48(%rbp),%rax
  lea    0x1(%rax),%rdx
  mov    %rdx,-0x48(%rbp)
  mov    %ebx,%edx
  lea    0x1(%rdx),%ebx
  movslq %edx,%rcx
  mov    -0x28(%rbp),%rdx
  add    %rcx,%rdx
  movzbl (%rax),%eax
  mov    %al,(%rdx)
  jmp    L198
L950:
  mov    -0x48(%rbp),%rax
  lea    0x1(%rax),%rdx
  mov    %rdx,-0x48(%rbp)
  mov    %ebx,%edx
  lea    0x1(%rdx),%ebx
  movslq %edx,%rcx
  mov    -0x28(%rbp),%rdx
  add    %rcx,%rdx
  movzbl (%rax),%eax
  mov    %al,(%rdx)
L198:
  mov    -0x48(%rbp),%rax
  movzbl (%rax),%eax
  test   %al,%al
  jne    L416
  test   %r13d,%r13d
  je     L219
  mov    %ebx,%eax
  lea    0x1(%rax),%ebx
  movslq %eax,%rdx
  mov    -0x28(%rbp),%rax
  add    %rdx,%rax
  movb   $0x5c,(%rax)
L219:
  movslq %ebx,%rdx
  mov    -0x28(%rbp),%rax
  add    %rdx,%rax
  movb   $0x0,(%rax)
  mov    -0x28(%rbp),%rax
L61:
  add    $0x38,%rsp
  pop    %rbx
  pop    %r12
  pop    %r13
  pop    %rbp
  ret
```

assistant: ```c
char *backslash_eliminate(str, type, who)
char *str;
int type;
int who;
{
  char *new_str;
  int extra = 100;
  int seenlb = 0;
  register int i = 0;
  register int seenbs = 0;
  int first_half = 0;
  if (type == 1) {
    if (!(new_str = mem(who, strlen(str) + 1 + extra))) {
      return 0;
    }
  } else {
    new_str = str;
  }
  while (*str) {
    if (seenbs) {
      seenbs = 0;
      switch (*str) {
      case '\\': {
        new_str[i++] = '\\';
        str++;
        break;
      }
      case '-': {
        if (seenlb) {
          new_str[i++] = '\\';
        }
        new_str[i++] = '-';
        str++;
        break;
      }
      case '}': {
        if (seenlb) {
          new_str[i++] = '\\';
        }
        new_str[i++] = '}';
        str++;
        break;
      }
      case 'n': {
        new_str[i++] = '\n';
        str++;
        break;
      }
      case 't': {
        new_str[i++] = '\t';
        str++;
        break;
      }
      case 's': {
        new_str[i++] = ' ';
        str++;
        break;
      }
      case 'r': {
        new_str[i++] = '\r';
        str++;
        break;
      }
      case 'f': {
        new_str[i++] = '\f';
        str++;
        break;
      }
      case 'b': {
        new_str[i++] = '\b';
        str++;
        break;
      }
      case 'v': {
        new_str[i++] = '\13';
        str++;
        break;
      }
      case 'z': {
        str++;
        break;
      }
      case '0':
      case '1':
      case '2':
      case '3':
      case '4':
      case '5':
      case '6':
      case '7':
      case '8':
      case '9': {
        char val;
        if (*str >= '0' && *str <= '3' && *(str + 1) >= '0' && *(str + 1) <= '7' && *(str + 2) >= '0' && *(str + 2) <= '7') {
          val = ((isdigit(*str) ? (*str) - '0' : islower(*str) ? (*str) + 10 - 'a' : (*str) + 10 - 'A') << 6) + ((isdigit(*(str + 1)) ? (*(str + 1)) - '0' : islower(*(str + 1)) ? (*(str + 1)) + 10 - 'a' : (*(str + 1)) + 10 - 'A') << 3) + (isdigit(*(str + 2)) ? (*(str + 2)) - '0' : islower(*(str + 2)) ? (*(str + 2)) + 10 - 'a' : (*(str + 2)) + 10 - 'A');
          if (!val) {
            return 0;
          }
          new_str[i++] = val;
          str += 3;
          break;
        }
        if (*str == '0' && (*(str + 1) == 'x' || *(str + 1) == 'X') && isxdigit(*(str + 2))) {
          val = (isdigit(*(str + 2)) ? (*(str + 2)) - '0' : islower(*(str + 2)) ? (*(str + 2)) + 10 - 'a' : (*(str + 2)) + 10 - 'A');
          if (isxdigit(*(str + 3))) {
            val = (val << 4) + (isdigit(*(str + 3)) ? (*(str + 3)) - '0' : islower(*(str + 3)) ? (*(str + 3)) + 10 - 'a' : (*(str + 3)) + 10 - 'A');
            str += 4;
          } else {
            str += 3;
          }
          if (!val) {
            return 0;
          }
          new_str[i++] = val;
          break;
        }
        if (isdigit(*(str + 1))) {
          val = (isdigit(*str) ? (*str) - '0' : islower(*str) ? (*str) + 10 - 'a' : (*str) + 10 - 'A') * 10 + (isdigit(*(str + 1)) ? (*(str + 1)) - '0' : islower(*(str + 1)) ? (*(str + 1)) + 10 - 'a' : (*(str + 1)) + 10 - 'A');
          if (isdigit(*(str + 2))) {
            val = 10 * val + (isdigit(*(str + 2)) ? (*(str + 2)) - '0' : islower(*(str + 2)) ? (*(str + 2)) + 10 - 'a' : (*(str + 2)) + 10 - 'A');
            str += 3;
          } else {
            str += 2;
          }
          if (!val) {
            return 0;
          }
          new_str[i++] = val;
          break;
        }
        if (*str == '0' && type == 0) {
          return 0;
        }
        if (type == 2) {
          if (!(val = (isdigit(*str) ? (*str) - '0' : islower(*str) ? (*str) + 10 - 'a' : (*str) + 10 - 'A'))) {
            return 0;
          }
          new_str[i++] = val;
          str++;
        } else {
          new_str[i++] = '\\';
          new_str[i++] = *str++;
        }
        break;
      }
      default: {
        if (type == 0) {
          new_str[i++] = '\\';
        }
        new_str[i++] = *str++;
        break;
      }
      }
    } else {
      if (*str == '\\') {
        seenbs = 1;
        str++;
      } else if (type == 1 && *str == '}') {
        if (*(str + 1) == '{' && first_half) {
          new_str[i++] = *str++;
          new_str[i++] = *str++;
          first_half = 0;
        } else {
          seenlb = 0;
          new_str[i++] = *str++;
        }
      } else if (type == 1 && !seenlb && *str == '{') {
        seenlb = 1;
        first_half = 1;
        if (i < 2 || new_str[i - 2] != '\\' || !(new_str[i - 1] >= '0' && new_str[i - 1] <= '9')) {
          if ((extra -= 2) < 0) {
            return 0;
          }
          new_str[i++] = '\\';
          new_str[i++] = '0';
        }
        new_str[i++] = *str++;
      } else {
        new_str[i++] = *str++;
      }
    }
  }
  if (seenbs) {
    new_str[i++] = '\\';
  }
  new_str[i] = '\0';
  return new_str;
}
```