user: 请从给定的汇编指令推导出C源代码:

```asm
<BGBDT_TagParse_ParseTokenBasic>:
  endbr64
  push   %r13
  xor    %eax,%eax
  push   %r12
  push   %rbp
  mov    %rsi,%rbp
  push   %rbx
  sub    $0x8,%rsp
  call   <BGBDT_TagParse_EatWhite@plt>
  movslq %eax,%r8
  movzbl (%r8),%eax
  test   %al,%al
  je     L973
  lea    0xfc(%rbp),%rbx
  cmp    $0x5f,%al
  je     L1230
  cmp    $0x24,%al
  je     L1230
  mov    %eax,%edx
  and    $0xffffffdf,%edx
  sub    $0x41,%edx
  cmp    $0x19,%dl
  jbe    L1230
  lea    -0x30(%rax),%edx
  cmp    $0x9,%dl
  ja     L188
  movb   $0x23,0x0(%rbp)
  movzbl (%r8),%eax
  mov    %al,0x1(%rbp)
  movzbl 0x1(%r8),%eax
  lea    -0x62(%rax),%edx
  cmp    $0x2,%dl
  jbe    L1381
  cmp    $0x78,%al
  je     L1381
  add    $0x1,%r8
  lea    0x2(%rbp),%rdx
  test   %al,%al
  je     L75
  cmp    %rdx,%rbx
  ja     L30
  jmp    L1316
  cs nopw 0x0(%rax,%rax,1)
L117:
  add    $0x1,%r8
  mov    %al,(%rdx)
  add    $0x1,%rdx
  movzbl (%r8),%eax
  test   %al,%al
  je     L75
  cmp    %rdx,%rbx
  je     L1316
L30:
  lea    -0x30(%rax),%ecx
  cmp    $0x9,%cl
  jbe    L117
  cmp    $0x5f,%al
  je     L117
L1316:
  cmp    $0x2e,%al
  jne    L75
  movb   $0x2e,(%rdx)
  movzbl 0x1(%r8),%eax
  lea    0x1(%r8),%rsi
  lea    0x1(%rdx),%rcx
  test   %al,%al
  je     L498
  cmp    %rcx,%rbx
  ja     L536
  jmp    L196
  xchg   %ax,%ax
L1163:
  add    $0x1,%rsi
  mov    %al,(%rcx)
  add    $0x1,%rcx
  movzbl (%rsi),%eax
  test   %al,%al
  je     L498
  cmp    %rcx,%rbx
  je     L196
L536:
  lea    -0x30(%rax),%edx
  cmp    $0x9,%dl
  jbe    L1163
  cmp    $0x5f,%al
  je     L1163
L196:
  mov    %eax,%edx
  and    $0xffffffdf,%edx
  cmp    $0x45,%dl
  jne    L498
  mov    %al,(%rcx)
  movzbl 0x1(%rsi),%eax
  lea    -0x2b(%rax),%edx
  and    $0xfd,%edx
  je     L612
  lea    0x1(%rsi),%r8
  lea    0x1(%rcx),%rdx
L495:
  cmp    %rbx,%rdx
  jb     L127
  jmp    L228
  nopl   0x0(%rax,%rax,1)
L211:
  lea    -0x30(%rax),%ecx
  cmp    $0x9,%cl
  jbe    L1395
  cmp    $0x5f,%al
  jne    L228
L1395:
  add    $0x1,%r8
  add    $0x1,%rdx
  mov    %al,-0x1(%rdx)
  movzbl (%r8),%eax
  cmp    %rdx,%rbx
  jbe    L228
L127:
  test   %al,%al
  jne    L211
  nopl   0x0(%rax)
L228:
  movb   $0x0,(%rdx)
L1361:
  add    $0x8,%rsp
  mov    %r8,%rax
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  ret
  nopl   0x0(%rax)
L1230:
  movb   $0x49,0x0(%rbp)
  movzbl (%r8),%eax
  lea    0x1(%rbp),%rdx
  test   %al,%al
  je     L228
L1075:
  cmp    $0x5f,%al
  je     L1060
  cmp    $0x24,%al
  je     L1060
  mov    %eax,%ecx
  and    $0xffffffdf,%ecx
  sub    $0x41,%ecx
  cmp    $0x19,%cl
  jbe    L1060
  lea    -0x30(%rax),%ecx
  cmp    $0x9,%cl
  ja     L228
L1060:
  add    $0x1,%r8
  add    $0x1,%rdx
  mov    %al,-0x1(%rdx)
  movzbl (%r8),%eax
  cmp    %rdx,%rbx
  jbe    L228
  test   %al,%al
  jne    L1075
  jmp    L228
  nopw   0x0(%rax,%rax,1)
L973:
  xor    %edx,%edx
  mov    %r8,%rax
  mov    %dx,0x0(%rbp)
  add    $0x8,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  ret
  nopl   0x0(%rax)
L188:
  cmp    $0x22,%al
  je     L650
  cmp    $0x27,%al
  je     L929
  movb   $0x58,0x0(%rbp)
  movzbl (%r8),%edx
  lea    -0x21(%rdx),%eax
  cmp    $0x5b,%al
  ja     L477
  lea    D5(%rip),%rcx
  movzbl %al,%eax
  movslq (%rcx,%rax,4),%rax
  add    %rcx,%rax
  notrack jmp *%rax
L1381:
  movb   $0x7c,0x0(%rbp)
  movzbl 0x1(%r8),%edx
  lea    0x2(%r8),%rcx
  lea    0x3(%rbp),%rax
  mov    %dl,0x2(%rbp)
  movzbl 0x2(%r8),%edx
  test   %dl,%dl
  je     L200
  movabs $0xff817fffff81fc00,%rdi
  cmp    %rax,%rbx
  jbe    L200
  nopl   0x0(%rax,%rax,1)
L723:
  lea    -0x30(%rdx),%esi
  cmp    $0x36,%sil
  jbe    L1402
L200:
  movb   $0x0,(%rax)
  mov    %rcx,%r8
  jmp    L1361
  nopl   0x0(%rax)
L1402:
  bt     %rsi,%rdi
  jb     L200
  add    $0x1,%rcx
  add    $0x1,%rax
  mov    %dl,-0x1(%rax)
  movzbl (%rcx),%edx
  cmp    %rax,%rbx
  jbe    L200
  test   %dl,%dl
  jne    L723
  jmp    L200
L477:
  mov    %dl,0x1(%rbp)
  add    $0x1,%r8
  movb   $0x0,0x2(%rbp)
  jmp    L1361
L929:
  movb   $0x43,0x0(%rbp)
  movzbl 0x1(%r8),%eax
  lea    0x1(%r8),%r13
  lea    0x1(%rbp),%r12
  test   %al,%al
  je     L743
  lea    D27(%rip),%rbp
  jmp    L1167
  nopl   0x0(%rax)
L899:
  cmp    $0x27,%al
  je     L297
  mov    %al,(%r12)
  movzbl 0x1(%r13),%eax
  add    $0x1,%r12
L94:
  mov    %r8,%r13
L834:
  test   %al,%al
  je     L743
L290:
  cmp    %r12,%rbx
  jbe    L415
L1167:
  lea    0x1(%r13),%r8
  cmp    $0x5c,%al
  jne    L899
  movzbl 0x1(%r13),%eax
  cmp    $0x78,%al
  jg     L1011
  cmp    $0x5b,%al
  jle    L1033
  lea    -0x5c(%rax),%edx
  cmp    $0x1c,%dl
  ja     L1011
  movzbl %dl,%edx
  movslq 0x0(%rbp,%rdx,4),%rdx
  add    %rbp,%rdx
  notrack jmp *%rdx
L1011:
  mov    %r8,%r13
  jmp    L290
  mov    %dl,0x1(%rbp)
  cmpb   $0x3d,0x1(%r8)
  je     L544
L397:
  add    $0x1,%r8
  lea    0x2(%rbp),%rax
L364:
  movb   $0x0,(%rax)
  jmp    L1361
  movb   $0x26,0x1(%rbp)
  movzbl 0x1(%r8),%eax
  cmp    $0x26,%al
  je     L1454
L186:
  cmp    $0x3d,%al
  jne    L397
L544:
  movb   $0x3d,0x2(%rbp)
  add    $0x2,%r8
  lea    0x3(%rbp),%rax
  jmp    L364
  movb   $0x23,0x1(%rbp)
  movzbl 0x1(%r8),%eax
  cmp    $0x5b,%al
  je     L691
  jg     L1014
  cmp    $0x29,%al
  je     L1106
  jg     L1261
  cmp    $0x23,%al
  je     L599
  cmp    $0x28,%al
  jne    L397
  movb   $0x28,0x2(%rbp)
  add    $0x2,%r8
  lea    0x3(%rbp),%rax
  jmp    L364
  movb   $0x3c,0x1(%rbp)
  movzbl 0x1(%r8),%eax
  cmp    $0x3c,%al
  jne    L186
  movb   $0x3c,0x2(%rbp)
  movsbl 0x2(%r8),%eax
  mov    %eax,%edx
  sub    $0x3c,%eax
  cmp    $0x1,%eax
  jbe    L69
L1436:
  add    $0x2,%r8
  lea    0x3(%rbp),%rax
  jmp    L364
  movb   $0x2d,0x1(%rbp)
  movzbl 0x1(%r8),%eax
  lea    -0x3d(%rax),%edx
  cmp    $0x1,%dl
  jbe    L1215
  cmp    $0x2d,%al
  je     L1215
L1417:
  add    $0x1,%r8
  lea    0x2(%rbp),%rdx
  jmp    L228
  cmpb   $0x2e,0x1(%r8)
  je     L401
L959:
  mov    $0x2e,%eax
  add    $0x1,%r8
  mov    %ax,0x1(%rbp)
  jmp    L1361
  movb   $0x2b,0x1(%rbp)
  movzbl 0x1(%r8),%eax
  cmp    $0x2b,%al
  je     L1215
  cmp    $0x3d,%al
  jne    L1417
L1215:
  mov    %al,0x2(%rbp)
  add    $0x2,%r8
  lea    0x3(%rbp),%rdx
  jmp    L228
  movb   $0x7c,0x1(%rbp)
  movzbl 0x1(%r8),%eax
  cmp    $0x3d,%al
  je     L544
  cmp    $0x7c,%al
  jne    L397
  movb   $0x7c,0x2(%rbp)
  cmpb   $0x3d,0x2(%r8)
  jne    L1436
L514:
  movb   $0x3d,0x3(%rbp)
  add    $0x3,%r8
  lea    0x4(%rbp),%rax
  jmp    L364
  movb   $0x3e,0x1(%rbp)
  movzbl 0x1(%r8),%eax
  cmp    $0x3d,%al
  je     L544
  cmp    $0x3e,%al
  jne    L397
  movb   $0x3e,0x2(%rbp)
  movsbl 0x2(%r8),%eax
  mov    %eax,%edx
  sub    $0x3d,%eax
  cmp    $0x1,%eax
  ja     L1436
L69:
  mov    %dl,0x3(%rbp)
  add    $0x3,%r8
  lea    0x4(%rbp),%rax
  jmp    L364
  lea    0x2(%r13),%rdi
  mov    $0x2,%esi
  xor    %eax,%eax
  add    $0x1,%r12
  call   <BGBDT_TagParse_ParseHexN@plt>
  add    $0x4,%r13
  mov    %al,-0x1(%r12)
  movzbl 0x0(%r13),%eax
  jmp    L834
  lea    0x2(%r13),%rdi
  mov    $0x4,%esi
  xor    %eax,%eax
  add    $0x6,%r13
  call   <BGBDT_TagParse_ParseHexN@plt>
  mov    %r12,%rdi
  mov    %eax,%esi
  xor    %eax,%eax
  call   <BGBDT_TagParse_EmitUtf8@plt>
  movslq %eax,%r12
  movzbl 0x0(%r13),%eax
  jmp    L834
  movb   $0x9,(%r12)
  add    $0x2,%r13
  movzbl 0x0(%r13),%eax
  add    $0x1,%r12
  jmp    L834
  movb   $0xd,(%r12)
  add    $0x2,%r13
  movzbl 0x0(%r13),%eax
  add    $0x1,%r12
  jmp    L834
  movb   $0xa,(%r12)
  add    $0x2,%r13
  movzbl 0x0(%r13),%eax
  add    $0x1,%r12
  jmp    L834
  movb   $0x8,(%r12)
  add    $0x2,%r13
  movzbl 0x0(%r13),%eax
  add    $0x1,%r12
  jmp    L834
  movb   $0x5c,(%r12)
  add    $0x2,%r13
  movzbl 0x0(%r13),%eax
  add    $0x1,%r12
  jmp    L834
L743:
  mov    %r13,%r8
L297:
  movb   $0x0,(%r12)
  jmp    L1361
L650:
  cmpb   $0x22,0x1(%r8)
  jne    L951
  cmpb   $0x22,0x2(%r8)
  je     L389
L951:
  movb   $0x53,0x0(%rbp)
  movzbl 0x1(%r8),%eax
  lea    0x1(%r8),%r13
  lea    0x1(%rbp),%r12
  test   %al,%al
  je     L743
  lea    D22(%rip),%rbp
  jmp    L1201
  nopw   0x0(%rax,%rax,1)
L473:
  cmp    $0x22,%al
  je     L297
  mov    %al,(%r12)
  movzbl 0x1(%r13),%eax
  add    $0x1,%r12
L608:
  mov    %r8,%r13
L737:
  test   %al,%al
  je     L743
L34:
  cmp    %r12,%rbx
  jbe    L614
L1201:
  lea    0x1(%r13),%r8
  cmp    $0x5c,%al
  jne    L473
  movzbl 0x1(%r13),%eax
  cmp    $0x78,%al
  jg     L1113
  cmp    $0x5b,%al
  jle    L329
  lea    -0x5c(%rax),%edx
  cmp    $0x1c,%dl
  ja     L1113
  movzbl %dl,%edx
  movslq 0x0(%rbp,%rdx,4),%rdx
  add    %rbp,%rdx
  notrack jmp *%rdx
L1113:
  mov    %r8,%r13
  jmp    L34
  lea    0x2(%r13),%rdi
  mov    $0x2,%esi
  xor    %eax,%eax
  add    $0x1,%r12
  call   <BGBDT_TagParse_ParseHexN@plt>
  add    $0x4,%r13
  mov    %al,-0x1(%r12)
  movzbl 0x0(%r13),%eax
  jmp    L737
  lea    0x2(%r13),%rdi
  mov    $0x4,%esi
  xor    %eax,%eax
  add    $0x6,%r13
  call   <BGBDT_TagParse_ParseHexN@plt>
  mov    %r12,%rdi
  mov    %eax,%esi
  xor    %eax,%eax
  call   <BGBDT_TagParse_EmitUtf8@plt>
  movslq %eax,%r12
  movzbl 0x0(%r13),%eax
  jmp    L737
  movb   $0x9,(%r12)
  add    $0x2,%r13
  movzbl 0x0(%r13),%eax
  add    $0x1,%r12
  jmp    L737
  movb   $0xd,(%r12)
  add    $0x2,%r13
  movzbl 0x0(%r13),%eax
  add    $0x1,%r12
  jmp    L737
  movb   $0xa,(%r12)
  add    $0x2,%r13
  movzbl 0x0(%r13),%eax
  add    $0x1,%r12
  jmp    L737
  movb   $0x8,(%r12)
  add    $0x2,%r13
  movzbl 0x0(%r13),%eax
  add    $0x1,%r12
  jmp    L737
  movb   $0x5c,(%r12)
  add    $0x2,%r13
  movzbl 0x0(%r13),%eax
  add    $0x1,%r12
  jmp    L737
  nopl   0x0(%rax)
L329:
  cmp    $0x22,%al
  je     L819
  cmp    $0x27,%al
  jne    L608
  movb   $0x27,(%r12)
  add    $0x2,%r13
  movzbl 0x0(%r13),%eax
  add    $0x1,%r12
  jmp    L737
L1033:
  cmp    $0x22,%al
  je     L818
  cmp    $0x27,%al
  jne    L94
  movb   $0x27,(%r12)
  add    $0x2,%r13
  movzbl 0x0(%r13),%eax
  add    $0x1,%r12
  jmp    L834
L75:
  movb   $0x7c,0x0(%rbp)
  jmp    L228
L614:
  mov    %r13,%r8
  cmp    $0x22,%al
  jne    L297
L553:
  lea    0x1(%r13),%r8
  jmp    L297
L389:
  movb   $0x58,0x0(%rbp)
  movzbl (%r8),%eax
  mov    %al,0x1(%rbp)
L1037:
  movzbl 0x1(%r8),%eax
  add    $0x3,%r8
  mov    %al,0x2(%rbp)
  movzbl -0x1(%r8),%eax
  movb   $0x0,0x4(%rbp)
  mov    %al,0x3(%rbp)
  jmp    L1361
L498:
  mov    %rcx,%rdx
  mov    %rsi,%r8
  jmp    L228
L819:
  movb   $0x22,(%r12)
  add    $0x2,%r13
  movzbl 0x0(%r13),%eax
  add    $0x1,%r12
  jmp    L737
L415:
  mov    %r13,%r8
  cmp    $0x27,%al
  jne    L297
  jmp    L553
L1261:
  cmp    $0x3a,%al
  jne    L397
  movb   $0x3a,0x2(%rbp)
  add    $0x2,%r8
  lea    0x3(%rbp),%rax
  jmp    L364
L1014:
  cmp    $0x7b,%al
  je     L635
  cmp    $0x7d,%al
  jne    L46
  movb   $0x7d,0x2(%rbp)
  add    $0x2,%r8
  lea    0x3(%rbp),%rax
  jmp    L364
L46:
  cmp    $0x5d,%al
  jne    L397
  movb   $0x5d,0x2(%rbp)
  add    $0x2,%r8
  lea    0x3(%rbp),%rax
  jmp    L364
L612:
  mov    %al,0x1(%rcx)
  lea    0x2(%rsi),%r8
  movzbl 0x2(%rsi),%eax
  lea    0x2(%rcx),%rdx
  jmp    L495
L818:
  movb   $0x22,(%r12)
  add    $0x2,%r13
  movzbl 0x0(%r13),%eax
  add    $0x1,%r12
  jmp    L834
L401:
  cmpb   $0x2e,0x2(%r8)
  jne    L959
  movb   $0x2e,0x1(%rbp)
  jmp    L1037
L1454:
  movb   $0x26,0x2(%rbp)
  cmpb   $0x3d,0x2(%r8)
  jne    L1436
  jmp    L514
L1106:
  movb   $0x29,0x2(%rbp)
  add    $0x2,%r8
  lea    0x3(%rbp),%rax
  jmp    L364
L599:
  movb   $0x23,0x2(%rbp)
  add    $0x2,%r8
  lea    0x3(%rbp),%rax
  jmp    L364
L635:
  movb   $0x7b,0x2(%rbp)
  add    $0x2,%r8
  lea    0x3(%rbp),%rax
  jmp    L364
L691:
  movb   $0x5b,0x2(%rbp)
  add    $0x2,%r8
  lea    0x3(%rbp),%rax
  jmp    L364
```

assistant: ```c
char *BGBDT_TagParse_ParseTokenBasic(char *s, char *tb) {
  char *t, *te;
  int i, j, k;
  t = tb;
  te = tb + 252;
  s = BGBDT_TagParse_EatWhite(s);
  if (!(*s)) {
    *t++ = 0;
    *t++ = 0;
    return (s);
  }
  if ((*s == '_') || (*s == '$') || ((*s >= 'A') && (*s <= 'Z')) || ((*s >= 'a') && (*s <= 'z'))) {
    *t++ = 'I';
    while (*s && (t < te) && ((*s == '_') || (*s == '$') || ((*s >= 'A') && (*s <= 'Z')) || ((*s >= 'a') && (*s <= 'z')) || ((*s >= '0') && (*s <= '9'))))
      *t++ = *s++;
    *t++ = 0;
    return (s);
  }
  if ((*s >= '0') && (*s <= '9')) {
    *t++ = '#';
    *t++ = *s++;
    if ((*s == 'x') || (*s == 'b') || (*s == 'c') || (*s == 'd')) {
      *tb = '|';
      *t++ = *s++;
      while (*s && (t < te) && ((*s == '_') || ((*s >= '0') && (*s <= '9')) || ((*s >= 'A') && (*s <= 'F')) || ((*s >= 'a') && (*s <= 'f'))))
        *t++ = *s++;
      *t++ = 0;
      return (s);
    }
    while (*s && (t < te) && ((*s == '_') || ((*s >= '0') && (*s <= '9'))))
      *t++ = *s++;
    if (*s == '.') {
      *t++ = *s++;
      while (*s && (t < te) && ((*s == '_') || ((*s >= '0') && (*s <= '9'))))
        *t++ = *s++;
      if ((*s == 'e') || (*s == 'E')) {
        *t++ = *s++;
        if ((*s == '+') || (*s == '-'))
          *t++ = *s++;
        while (*s && (t < te) && ((*s == '_') || ((*s >= '0') && (*s <= '9'))))
          *t++ = *s++;
      }
    } else {
      *tb = '|';
    }
    *t++ = 0;
    return (s);
  }
  if (*s == '\"') {
    if ((s[1] == '\"') && (s[2] == '\"')) {
      *t++ = 'X';
      *t++ = *s++;
      *t++ = *s++;
      *t++ = *s++;
      *t++ = 0;
      return (s);
    }
    s++;
    *t++ = 'S';
    while (*s && (t < te)) {
      if (*s == '\\') {
        s++;
        switch (*s) {
        case 'n':
          s++;
          *t++ = '\n';
          break;
        case 'r':
          s++;
          *t++ = '\r';
          break;
        case 'b':
          s++;
          *t++ = '\b';
          break;
        case 't':
          s++;
          *t++ = '\t';
          break;
        case '\\':
          s++;
          *t++ = '\\';
          break;
        case '\"':
          s++;
          *t++ = '\"';
          break;
        case '\'':
          s++;
          *t++ = '\'';
          break;
        case 'x':
          s++;
          *t++ = BGBDT_TagParse_ParseHexN(s, 2);
          s += 2;
          break;
        case 'u':
          s++;
          i = BGBDT_TagParse_ParseHexN(s, 4);
          t = BGBDT_TagParse_EmitUtf8(t, i);
          s += 4;
          break;
        }
        continue;
      }
      if (*s == '\"')
        break;
      *t++ = *s++;
    }
    if (*s == '\"')
      s++;
    *t++ = 0;
    return (s);
  }
  if (*s == '\'') {
    s++;
    *t++ = 'C';
    while (*s && (t < te)) {
      if (*s == '\\') {
        s++;
        switch (*s) {
        case 'n':
          s++;
          *t++ = '\n';
          break;
        case 'r':
          s++;
          *t++ = '\r';
          break;
        case 'b':
          s++;
          *t++ = '\b';
          break;
        case 't':
          s++;
          *t++ = '\t';
          break;
        case '\\':
          s++;
          *t++ = '\\';
          break;
        case '\"':
          s++;
          *t++ = '\"';
          break;
        case '\'':
          s++;
          *t++ = '\'';
          break;
        case 'x':
          s++;
          *t++ = BGBDT_TagParse_ParseHexN(s, 2);
          s += 2;
          break;
        case 'u':
          s++;
          i = BGBDT_TagParse_ParseHexN(s, 4);
          t = BGBDT_TagParse_EmitUtf8(t, i);
          s += 4;
          break;
        }
        continue;
      }
      if (*s == '\'')
        break;
      *t++ = *s++;
    }
    if (*s == '\'')
      s++;
    *t++ = 0;
    return (s);
  }
  *t++ = 'X';
  switch (*s) {
  case '-':
    *t++ = *s++;
    if ((*s == '-') || (*s == '=') || (*s == '>')) {
      *t++ = *s++;
    }
    *t++ = 0;
    break;
  case '+':
    *t++ = *s++;
    if ((*s == '+') || (*s == '=')) {
      *t++ = *s++;
    }
    *t++ = 0;
    break;
  case '=':
  case '!':
  case '/':
  case '*':
  case '%':
  case '^':
    *t++ = *s++;
    if (*s == '=')
      *t++ = *s++;
    *t++ = 0;
    break;
  case '|':
    *t++ = *s++;
    switch (*s) {
    case '=':
      *t++ = *s++;
      break;
    case '|':
      *t++ = *s++;
      switch (*s) {
      case '=':
        *t++ = *s++;
        break;
      default:
        break;
      }
      break;
    default:
      break;
    }
    *t++ = 0;
    break;
  case '&':
    *t++ = *s++;
    switch (*s) {
    case '=':
      *t++ = *s++;
      break;
    case '&':
      *t++ = *s++;
      switch (*s) {
      case '=':
        *t++ = *s++;
        break;
      default:
        break;
      }
      break;
    default:
      break;
    }
    *t++ = 0;
    break;
  case '<':
    *t++ = *s++;
    switch (*s) {
    case '=':
      *t++ = *s++;
      break;
    case '<':
      *t++ = *s++;
      switch (*s) {
      case '<':
      case '=':
        *t++ = *s++;
        break;
      default:
        break;
      }
      break;
    default:
      break;
    }
    *t++ = 0;
    break;
  case '>':
    *t++ = *s++;
    switch (*s) {
    case '=':
      *t++ = *s++;
      break;
    case '>':
      *t++ = *s++;
      switch (*s) {
      case '>':
      case '=':
        *t++ = *s++;
        break;
      default:
        break;
      }
      break;
    default:
      break;
    }
    *t++ = 0;
    break;
  case '#':
    *t++ = *s++;
    switch (*s) {
    case '#':
      *t++ = *s++;
      break;
    case ':':
      *t++ = *s++;
      break;
    case '(':
      *t++ = *s++;
      break;
    case ')':
      *t++ = *s++;
      break;
    case '[':
      *t++ = *s++;
      break;
    case ']':
      *t++ = *s++;
      break;
    case '{':
      *t++ = *s++;
      break;
    case '}':
      *t++ = *s++;
      break;
    default:
      break;
    }
    *t++ = 0;
    break;
  case '~':
  case '?':
  case '@':
  case '\\':
  case ';':
  case ':':
  case ',':
    *t++ = *s++;
    *t++ = 0;
    break;
  case '.':
    if ((s[1] == '.') && (s[2] == '.')) {
      *t++ = *s++;
      *t++ = *s++;
      *t++ = *s++;
      *t++ = 0;
      break;
    }
    *t++ = *s++;
    *t++ = 0;
    break;
  case '(':
  case ')':
  case '[':
  case ']':
  case '{':
  case '}':
    *t++ = *s++;
    *t++ = 0;
    break;
  default:
    *t++ = *s++;
    *t++ = 0;
    break;
  }
  return (s);
}
```