user: Translate the below assembly code into C programming language:

```asm
<test1>:
  endbr64
  push   %r15
  push   %r14
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  sub    $0x18,%rsp
  mov    %rdi,%rbp
  movzbl (%rdi),%ebx
  movsbl %bl,%edi
  call   <isalpha@plt>
  cmp    $0x5f,%bl
  je     L157
  mov    $0x0,%r13d
  test   %eax,%eax
  jne    L157
L159:
  mov    %r13d,%eax
  add    $0x18,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
L157:
  mov    %rbp,%rdi
  call   <strlen@plt>
  lea    -0x1(%rbp,%rax,1),%rdi
  mov    %rbp,%rsi
  mov    $0x0,%eax
  call   <ppdirbackward@plt>
  mov    %eax,%edi
  mov    $0xffffffff,%esi
  mov    $0x0,%eax
  call   <skipspace@plt>
  cltq
  movzbl (%rax),%eax
  cmp    $0x3b,%al
  je     L62
  jg     L135
  cmp    $0x29,%al
  sete   %r13b
  movzbl %r13b,%r13d
  lea    -0x1(%r13,%r13,1),%r13d
L260:
  mov    %rbp,%rbx
  jmp    L296
L135:
  sub    $0x7b,%eax
  mov    $0x0,%r13d
  test   $0xfd,%al
  je     L159
  mov    $0xffffffff,%r13d
  jmp    L260
L237:
  add    $0x1,%rbx
L296:
  movzbl (%rbx),%r12d
  movsbl %r12b,%edi
  call   <isalnum@plt>
  cmp    $0x5f,%r12b
  je     L237
  test   %eax,%eax
  jne    L237
  mov    $0x1,%esi
  mov    %rbx,%rdi
  call   <skipspace@plt>
  cltq
  cmpb   $0x28,(%rax)
  je     L291
  mov    $0x0,%r13d
  jmp    L159
L62:
  mov    $0x0,%r13d
  jmp    L260
L291:
  lea    0x1(%rax),%rdi
  mov    $0x1,%esi
  mov    $0x0,%eax
  call   <skipspace@plt>
  movslq %eax,%r15
  cmpb   $0x29,(%r15)
  je     L56
  sub    %rbp,%rbx
  mov    %ebx,%eax
  mov    D21(%rip),%r12
  test   %r12,%r12
  je     L55
  lea    D21(%rip),%r14
  mov    %ebx,%ebx
  mov    %eax,%eax
  mov    %rax,0x8(%rsp)
  jmp    L286
L50:
  add    $0x8,%r14
  mov    (%r14),%r12
  test   %r12,%r12
  je     L215
L286:
  mov    %r12,%rdi
  call   <strlen@plt>
  cmp    %rbx,%rax
  jne    L50
  mov    0x8(%rsp),%rdx
  mov    %rbp,%rsi
  mov    %r12,%rdi
  call   <strncmp@plt>
  test   %eax,%eax
  jne    L50
  mov    %eax,%r13d
  jmp    L159
L215:
  mov    %r15,%rbx
  jmp    L188
L319:
  add    $0x1,%rbx
L188:
  movzbl (%rbx),%r12d
  movsbl %r12b,%edi
  call   <isalnum@plt>
  cmp    $0x5f,%r12b
  je     L319
  test   %eax,%eax
  jne    L319
  mov    $0x1,%esi
  mov    %rbx,%rdi
  call   <skipspace@plt>
  cltq
  movzbl (%rax),%eax
  cmp    $0x2c,%al
  je     L165
  cmp    $0x29,%al
  je     L369
L293:
  test   %r13d,%r13d
  jle    L159
  mov    $0x1,%esi
  mov    %rbp,%rdi
  mov    $0x0,%eax
  call   <skipspace@plt>
  cltq
  movzbl (%rax),%ecx
  test   %cl,%cl
  je     L159
  mov    $0x0,%ebx
  mov    $0x1,%ebp
  jmp    L15
L55:
  mov    %r15,%rbx
  jmp    L188
L369:
  sub    %r15,%rbx
  cmp    $0x4,%ebx
  jne    L174
  mov    $0x4,%edx
  lea    D14(%rip),%rsi
  mov    %r15,%rdi
  call   <strncmp@plt>
  test   %eax,%eax
  je     L293
  mov    $0x0,%r13d
  jmp    L159
L339:
  add    %edx,%ebx
  lea    0x1(%rax),%rdi
  mov    %ebp,%esi
  mov    $0x0,%eax
  call   <skipspace@plt>
  cltq
  movzbl (%rax),%ecx
  test   %cl,%cl
  je     L160
L15:
  mov    %ebp,%edx
  cmp    $0x28,%cl
  je     L339
  cmp    $0x29,%cl
  sete   %dl
  movzbl %dl,%edx
  neg    %edx
  jmp    L339
L160:
  test   %ebx,%ebx
  mov    $0xffffffff,%eax
  cmovg  %eax,%r13d
  jmp    L159
L56:
  mov    $0x0,%r13d
  jmp    L159
L165:
  mov    $0x0,%r13d
  jmp    L159
L174:
  mov    $0x0,%r13d
  jmp    L159
```

tool_calls: name: unpack_data
arguments: data_label: D14
data_type: string

tool: D14: void

assistant: ```c
int test1(buf)
char *buf;
{
  char *p = buf;
  char *bend;
  char *endfn;
  int contin;
  if (!((1 && isalpha(*p)) || (*p) == '_'))
    return 0;
  bend = skipspace(ppdirbackward(buf + strlen(buf) - 1, buf), -1);
  switch (*bend) {
  case ';':
    contin = 0;
    break;
  case ')':
    contin = 1;
    break;
  case '{':
    return 0;
  case '}':
    return 0;
  default:
    contin = -1;
  }
  while (((1 && isalnum(*p)) || (*p) == '_'))
    p++;
  endfn = p;
  p = skipspace(p, 1);
  if (*p++ != '(')
    return 0;
  p = skipspace(p, 1);
  if (*p == ')')
    return 0;
  {
    static char *words[] = {"asm", "auto", "case", "char", "const", "double", "extern", "float", "for", "if", "int", "long", "register", "return", "short", "signed", "sizeof", "static", "switch", "typedef", "unsigned", "void", "volatile", "while", 0};
    char **key = words;
    char *kp;
    unsigned len = endfn - buf;
    while ((kp = *key) != 0) {
      if (strlen(kp) == len && !strncmp(kp, buf, len))
        return 0;
      key++;
    }
  }
  {
    char *id = p;
    int len;
    while (((1 && isalnum(*p)) || (*p) == '_'))
      p++;
    len = p - id;
    p = skipspace(p, 1);
    if (*p == ',' || (*p == ')' && (len != 4 || strncmp(id, "void", 4))))
      return 0;
  }
  if (contin > 0) {
    int level = 0;
    for (p = skipspace(buf, 1); *p; p = skipspace(p + 1, 1))
      level += (*p == '(' ? 1 : *p == ')' ? -1 : 0);
    if (level > 0)
      contin = -1;
  }
  return contin;
}
```