WSJT-X/nchar.f

      function nchar(c)

C  Convert ascii number, letter, or space to 0-36 for callsign packing.

      character c*1

      if(c.ge.'0' .and. c.le.'9') then
         n=ichar(c)-ichar('0')
      else if(c.ge.'A' .and. c.le.'Z') then
         n=ichar(c)-ichar('A') + 10
      else if(c.ge.'a' .and. c.le.'z') then
         n=ichar(c)-ichar('a') + 10
      else if(c.ge.' ') then
         n=36
      else
         Print*,'Invalid character in callsign ',c,' ',ichar(c)
         stop
      endif
      nchar=n

      return
      end
First good compile with map65a running inside map65. git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/map65@334 ab8295b8-cf94-4d9e-aec4-7959e3be5d79 2007-01-11 16:25:52 -05:00			`function nchar(c)`

			`C Convert ascii number, letter, or space to 0-36 for callsign packing.`

			`character c*1`

			`if(c.ge.'0' .and. c.le.'9') then`
			`n=ichar(c)-ichar('0')`
			`else if(c.ge.'A' .and. c.le.'Z') then`
			`n=ichar(c)-ichar('A') + 10`
			`else if(c.ge.'a' .and. c.le.'z') then`
			`n=ichar(c)-ichar('a') + 10`
			`else if(c.ge.' ') then`
			`n=36`
			`else`
			`Print*,'Invalid character in callsign ',c,' ',ichar(c)`
			`stop`
			`endif`
			`nchar=n`

			`return`
			`end`