%{
/* gperf --struct-type --readonly-table --enum --global -K field_name -N header_entry --ignore-case */
/* Contributed by Bruce Lilly
   derived from http://users.erols.com/blilly/mailparse/fields.gperf */

#include <string.h>

%}
struct header_state { const char *field_name; };
%%
Accept-Language
Action
Alternate-Recipient
Approved
Archive
Arrival-Date
Autoforwarded
Autosubmitted
Bcc
Cc
Comments
Complaints-To
Content-alternative
Content-Base
Content-Description
Content-Disposition
Content-Duration
Content-Features
Content-ID
Content-Language
Content-Location
Content-MD5
Content-Transfer-Encoding
Content-Type
Control
Conversion
Conversion-With-Loss
DL-Expansion-History
DSN-Gateway
Date
Deferred-Delivery
Delivery-Date
Diagnostic-Code
Discarded-X400-IPMS-Extensions
Discarded-X400-MTS-Extensions
Disclose-Recipients
Disposition
Disposition-Notification-Options
Disposition-Notification-To
Distribution
Encrypted
Error
Expires
Failure
Final-Log-ID
Final-Recipient
Followup-To
From
Generate-Delivery-Report
Importance
In-Reply-To
Incomplete-Copy
Injector-Info
Keywords
Last-Attempt-Date
Latest-Delivery-Time
Lines
List-Archive
List-Help
List-ID
List-Post
List-Owner
List-Subscribe
List-Unsubscribe
MDN-Gateway
Media-Accept-Features
MIME-Version
Mail-Copies-To
Message-ID
Message-Type
Newsgroups
Organization
Original-Encoded-Information-Types
Original-Envelope-ID
Original-Message-ID
Original-Recipient
Originator-Return-Address
Path
Posted-And-Mailed
Prevent-Nondelivery-Report
Priority
Received
Received-content-MIC
Received-From-MTA
References
Remote-MTA
Reply-By
Reply-To
Reporting-MTA
Reporting-UA
Return-Path
Sender
Sensitivity
Status
Subject
Summary
Supersedes
To
User-Agent
Warning
Will-Retry-Until
X400-Content-Identifier
X400-Content-Return
X400-Content-Type
X400-MTS-Identifier
X400-Originator
X400-Received
X400-Recipients
Xref
%%

#include <stdio.h>
#include <stdlib.h>
#include <ctype.h>

static int
my_case_strcmp (s1, s2)
     register const char *s1;
     register const char *s2;
{
  for (;;)
    {
      unsigned char c1 = *s1++;
      unsigned char c2 = *s2++;
      if (c1 >= 'A' && c1 <= 'Z')
        c1 += 'a' - 'A';
      if (c2 >= 'A' && c2 <= 'Z')
        c2 += 'a' - 'A';
      if (c1 != 0 && c1 == c2)
        continue;
      return (int)c1 - (int)c2;
    }
}

int
main (argc, argv)
     int argc;
     char *argv[];
{
  int i, j, k, n, exitcode;
  size_t len;
  const struct header_state *hs;

  n = 1;
  if (argc > 1)
    n = atoi (argv[1]);
  if (n < 1)
    n = 1;

  exitcode = 0;
  for (i = 0; i < n; i++)
    {
      for (j = 0; j <= MAX_HASH_VALUE; j++)
        {
          const char *s = wordlist[j].field_name;
          len = strlen (s);
          if (len)
            {
              hs = header_entry (s, len);
              if (!(hs && strcmp (hs->field_name, s) == 0))
                {
                  fprintf (stderr, "%s != %s\n", s, hs ? hs->field_name : "(null)");
                  exitcode = 1;
                }
            }
        }
      for (j = 0; j <= MAX_HASH_VALUE; j++)
        {
          char s[MAX_WORD_LENGTH+1];
          /* expensive copy with case conversion (for testing) */
          strcpy (s, wordlist[j].field_name);
          len = strlen (s);
          if (len)
            {
              for (k = 0; k < len; k++)
                if (isupper ((unsigned char) s[k]))
                  s[k] = tolower ((unsigned char) s[k]);
                else if (islower ((unsigned char) s[k]))
                  s[k] = toupper ((unsigned char) s[k]);
              hs = header_entry (s, len);
              if (!(hs && my_case_strcmp (hs->field_name, s) == 0))
                {
                  fprintf (stderr, "%s != %s\n", s, hs ? hs->field_name : "(null)");
                  exitcode = 1;
                }
            }
        }
      hs = header_entry ("Dave", 4);
      if (hs)
        {
          fprintf (stderr, "Dave == %s\n", hs->field_name);
          exitcode = 1;
        }
    }
  return exitcode;
}