INTEGER FUNCTION CTYPE (ICHAR)
      INTEGER  INPTR
      INTEGER  OUTPTR
      INTEGER  INMAX
      INTEGER  MAXTAB
      INTEGER  MAXLIN
      INTEGER  IFMAX
      INTEGER  MAXLEV
      INTEGER  LINENO
      INTEGER  PAGE
      INTEGER  CLINE
      INTEGER  TLIMIT
      INTEGER  LN
      INTEGER  I, J, K
      INTEGER  II, JJ, KK
      INTEGER  LEXVAL
      INTEGER  SLEN
      INTEGER  LEVEL
      INTEGER  LEN
      INTEGER  INCHAN
      INTEGER  OUTCHN
      INTEGER  LPTCHN
      INTEGER  TTICHN
      INTEGER  TTOCHN
      INTEGER  PROCCN
      INTEGER  COMCHN
      INTEGER  TABS (10)
      LOGICAL  SKIPFL
      LOGICAL  POFF
      LOGICAL  FIRST
      INTEGER  ISP
      INTEGER  ICSTK (20)
      INTEGER  IFSP
      INTEGER  IFST (20)
      INTEGER  LPSP
      INTEGER  LPST (100)
      LOGICAL  TSEEN
      INTEGER  CHAR
      INTEGER  CTEMP
      LOGICAL  NEWFIL
      INTEGER  COMPMS (11)
      INTEGER  LSAVE (5)
      INTEGER  PSAVE (5)
      INTEGER  FFILE
      INTEGER  EOF
      INTEGER  LETTER
      INTEGER  DIGIT
      INTEGER  TAB
      INTEGER  EOL
      INTEGER  BLANK
      INTEGER  QUOTE
      INTEGER  GIZZY
      INTEGER  LPAREN
      INTEGER  RPAREN
      INTEGER  AST
      INTEGER  COMMA
      INTEGER  PERIOD
      INTEGER  SLASH
      INTEGER  CHAR0
      INTEGER  CHAR1
      INTEGER  CHAR9
      INTEGER  SEMI
      INTEGER  EQUAL
      INTEGER  CHARA
      INTEGER  CHARZ
      INTEGER  BBLANK
      INTEGER  UPAROW
      INTEGER  DOOP
      INTEGER  WHILE
      INTEGER  ENDOP
      INTEGER  FOR
      INTEGER  DOLOOP
      INTEGER  BREAK
      INTEGER  NEXT
      INTEGER  IFOP
      INTEGER  ELSE
      INTEGER  ENDIF
      INTEGER  DEFINE
      INTEGER  HEAD
      INTEGER  EJECT
      INTEGER  INCLUD
      INTEGER  OUTFIL
      INTEGER  IBUF (42)
      INTEGER  PBUF (58)
      INTEGER  HBUF (42)
      INTEGER  OUTBUF (42)
      INTEGER  BUF (58)
      INTEGER  NAME (22)
      COMMON    /STRN/  INPTR
      COMMON    /STRN/  OUTPTR
      COMMON    /STRN/  INMAX
      COMMON    /STRN/  MAXTAB
      COMMON    /STRN/  MAXLIN
      COMMON    /STRN/  IFMAX
      COMMON    /STRN/  MAXLEV
      COMMON    /STRN/  LINENO
      COMMON    /STRN/  PAGE
      COMMON    /STRN/  CLINE
      COMMON    /STRN/  TLIMIT
      COMMON    /STRN/  LN
      COMMON    /STRN/  I, J, K
      COMMON    /STRN/  II, JJ, KK
      COMMON    /STRN/  LEXVAL
      COMMON    /STRN/  SLEN
      COMMON    /STRN/  LEVEL
      COMMON    /STRN/  LEN
      COMMON    /STRN/  INCHAN
      COMMON    /STRN/  OUTCHN
      COMMON    /STRN/  LPTCHN
      COMMON    /STRN/  TTICHN
      COMMON    /STRN/  TTOCHN
      COMMON    /STRN/  PROCCN
      COMMON    /STRN/  COMCHN
      COMMON    /STRN/  TABS
      COMMON    /STRN/  SKIPFL
      COMMON    /STRN/  POFF
      COMMON    /STRN/  FIRST
      COMMON    /STRN/  ISP
      COMMON    /STRN/  ICSTK
      COMMON    /STRN/  IFSP
      COMMON    /STRN/  IFST
      COMMON    /STRN/  LPSP
      COMMON    /STRN/  LPST
      COMMON    /STRN/  TSEEN
      COMMON    /STRN/  CHAR
      COMMON    /STRN/  CTEMP
      COMMON    /STRN/  NEWFIL
      COMMON    /STRN/  COMPMS
      COMMON    /STRN/  LSAVE
      COMMON    /STRN/  PSAVE
      COMMON    /STRN/  FFILE
      COMMON    /STRN/  EOF
      COMMON    /STRN/  LETTER
      COMMON    /STRN/  DIGIT
      COMMON    /STRN/  TAB
      COMMON    /STRN/  EOL
      COMMON    /STRN/  BLANK
      COMMON    /STRN/  QUOTE
      COMMON    /STRN/  GIZZY
      COMMON    /STRN/  LPAREN
      COMMON    /STRN/  RPAREN
      COMMON    /STRN/  AST
      COMMON    /STRN/  COMMA
      COMMON    /STRN/  PERIOD
      COMMON    /STRN/  SLASH
      COMMON    /STRN/  CHAR0
      COMMON    /STRN/  CHAR1
      COMMON    /STRN/  CHAR9
      COMMON    /STRN/  SEMI
      COMMON    /STRN/  EQUAL
      COMMON    /STRN/  CHARA
      COMMON    /STRN/  CHARZ
      COMMON    /STRN/  BBLANK
      COMMON    /STRN/  UPAROW
      COMMON    /STRN/  DOOP
      COMMON    /STRN/  WHILE
      COMMON    /STRN/  ENDOP
      COMMON    /STRN/  FOR
      COMMON    /STRN/  DOLOOP
      COMMON    /STRN/  BREAK
      COMMON    /STRN/  NEXT
      COMMON    /STRN/  IFOP
      COMMON    /STRN/  ELSE
      COMMON    /STRN/  ENDIF
      COMMON    /STRN/  DEFINE
      COMMON    /STRN/  HEAD
      COMMON    /STRN/  EJECT
      COMMON    /STRN/  INCLUD
      COMMON    /STRN/  OUTFIL
      COMMON    /STRN/  IBUF
      COMMON    /STRN/  PBUF
      COMMON    /STRN/  HBUF
      COMMON    /STRN/  OUTBUF
      COMMON    /STRN/  BUF
      COMMON    /STRN/  NAME
      INTEGER ICHAR
      IF (.NOT. (ICHAR .GE. CHAR0 .AND. ICHAR .LE. CHAR9))GO TO 13014
      CTYPE = DIGIT
      GO TO 13015
13014 CONTINUE
      IF (.NOT. (ICHAR .GE. CHARA .AND. ICHAR .LE. CHARZ))GO TO 13016
      CTYPE = LETTER
      GO TO 13017
13016 CONTINUE
      CTYPE = ICHAR
13017 CONTINUE
13015 CONTINUE
      RETURN
      END