/*
HEADER:     ;
TITLE:      Frankenstein Cross Assemblers;
VERSION:    2.0;
DESCRIPTION: "  Reconfigurable Cross-assembler producing Intel (TM)
        Hex format object records.  ";
KEYWORDS:   cross-assemblers, 1805, 2650, 6301, 6502, 6805, 6809,
        6811, tms7000, 8048, 8051, 8096, z8, z80;
SYSTEM:     UNIX, MS-Dos ;
FILENAME:   fryylex.c;
WARNINGS:   "This software is in the public domain.
        Any prior copyright claims are relinquished.

        This software is distributed with no warranty whatever.
        The author takes no responsibility for the consequences
        of its use.

        Yacc (or Bison) required to compile."  ;
SEE-ALSO:   as*.y (yacc input files);
AUTHORS:    Mark Zenier;
COMPILERS:  Microport Sys V/AT, ATT Yacc, Turbo C V1.5, Bison (CUG disk 285)
        (previous versions Xenix, Unisoft 68000 Version 7, Sun 3);
*/


/*
    description lexical analyzer for framework cross assembler
    usage       Framework cross assembler, Unix
    history     September 13, 1987
            September 14, 1990  Dosify, 6 char unique names
            October, 1990  hand carved scanner
*/

#include "config.h"
#include "lzoe/lzoe.h"
#include "file/file.h"
#include "frasmdat.h"
#include "fraytok.h"
#include "as1600_types.h"
#include "protos.h"
#include "intermed.h"
#include "../imasm/c_wrap.h"

#ifndef DEBUG
#define DEBUG 0
#endif

    extern YYSTYPE yylval;

    enum symflag {Symopcode, Symsym} whichsym = Symopcode;

    enum labelarrayflag { LAno, LAmaybe, LAyes } labelarray = LAno;

    LZFILE *yyin;

    static char *fryybuf  = NULL;
    static int   fryy_bs  = 0;
    static char *frainptr = NULL;

    enum readacts nextreadact = Nra_normal;

enum If_Mode elseifstk[IFSTKDEPTH], endifstk[IFSTKDEPTH];
int expmacstk[IFSTKDEPTH];
struct fstkel infilestk[FILESTKDPTH];
int currfstk;

struct rptlist
{
    struct rptlist *next;
    char *buf;
    int  len;
    int  line;
};

struct rptstack
{
    struct rptlist  *head;
    int              num;
    int              cnt;
    int              skip;
};

#define MAXRPTNEST (16)

static struct rptstack rpt[MAXRPTNEST];
static int    frarptnum = 0, frarptstarting = FALSE;

static struct rptlist *rpt_curr = NULL, *rpt_head = NULL, *rpt_tail = NULL;

LOCAL void frarptpop(void)
/*
    description: deletes the current "repeat line" buffer
    return  nothing
*/
{
    struct rptlist *curr, *prev;

    if (frarptact == 0)
    {
        fraerror("ENDR without active REPEAT");
        return;
    }

    frarptact--;

    frarptnum  = rpt[frarptact].num;
    frarptcnt  = rpt[frarptact].cnt;
    frarptskip = rpt[frarptact].skip;

    /* If popping last level of nested REPEAT, delete loop buffer text */
    if (!frarptact)
    {
        curr = rpt_head;

        while (curr)
        {
            prev = curr;
            curr = curr->next;
            free(prev->buf);
            free(prev);
        }

        rpt_head = rpt_tail = rpt_curr = NULL;
    }
}

int frarptnxt()
/*
    description: return next line from repeat buffer.
    return  TRUE    got a line
            FALSE   no line available from loop buffer
*/
{
    /* If no current line, can't return anything from loop buffer. */
    if (rpt_curr == NULL)
        return FALSE;

    /* Remember the first line of a REPEAT block. */
    if (frarptstarting)
    {
        assert(frarptact > 0);
        frarptstarting = FALSE;
        rpt[frarptact - 1].head = rpt_curr;
    }

    /* Return next line from loop buffer, if available. */
    assert(rpt_curr->len < fryy_bs);
    strcpy(fryybuf, rpt_curr->buf);

    /* Fake our current line number. */
    infilestk[currfstk].line = rpt_curr->line;

    /* Move to next pointer.  */
    rpt_curr = rpt_curr->next;

    return 1;
}

void frarptadd(char *buf)
/*
    description: add a line onto the repeat buffer chain.
    return  nothing
*/
{
    struct rptlist *line;

    /* Append line to the loop buffer */
    line       = CALLOC(struct rptlist, 1);
    line->buf  = strdup(buf);
    line->len  = strlen(buf);
    line->line = infilestk[currfstk].line;
    line->next = NULL;

    if (!rpt_head) rpt_head       = line;
    if ( rpt_tail) rpt_tail->next = line;
    rpt_tail = line;

    /* Remember the first line of a REPEAT block */
    if (frarptstarting)
    {
        assert(frarptact > 0);
        frarptstarting = FALSE;
        rpt[frarptact - 1].head = line;
    }
}

void frarptbreak(void)
{
    /* If we're breaking out of current iteration, just neuter until ENDR */
    frarptskip = 1;
    frarptcnt  = 0;
    emit_comment(0, "  Break Taken");
}

void frarptendr()   /* begin actually looping repeat block */
{
    if (frarptact <= 0)
    {
        fraerror("Unexpected ENDR");
        return;
    }

    /* Count down the repeat block, and increment our interation number */
    frarptcnt--;
    frarptnum++;

    /* Output what the current loop iteration number is  */
    emit_comment(0, "  ;== %d", frarptnum);

    /* If loop expires, pop to previous level.  Otherwise, rewind curr to   */
    /* head of current repeat loop.                                         */
    if (frarptcnt < 0)  frarptpop();
    else                rpt_curr = rpt[frarptact - 1].head;
}

void frarptpush(int rptcnt)
{
    if (frarptact >= MAXRPTNEST)
    {
        fraerror("Maximum REPEAT nesting exceeded");
        return;
    }

    rpt[frarptact].num  = frarptnum;
    rpt[frarptact].cnt  = frarptcnt;
    rpt[frarptact].skip = frarptskip;
    frarptact++;

    frarptnum           = 0;
    frarptcnt           = rptcnt - 1;
    frarptskip          = rptcnt == 0;
    frarptstarting      = TRUE;
}

void frarptreset(void)
{
    while (frarptact > 0)
        frarptpop();
}

int fraignore = FALSE;

LOCAL int fra_reexamine(char *buf, int maxlen, ignore_flags_t *ignore, void *u)
{
    extern int fraifskip, frarptskip, fraexpmac;
    UNUSED(buf);
    UNUSED(maxlen);
    UNUSED(u);

    if (ignore) 
    {
//printf("reexamining %s  (i=%d,%d)\n", buf, ignore->skip_parse, ignore->skip_macro);
        ignore->skip_parse |= (fraifskip != FALSE) || (frarptskip != FALSE);
        ignore->skip_macro = ignore->skip_parse && !fraexpmac;
//printf("ignore = %d,%d\n", ignore->skip_parse, ignore->skip_macro);
    }

    return 1;
}

int fra_next_line(char *buf, int maxlen, ignore_flags_t *ignore, void *u)
/*
    description read a line, on end of file, pop the include file stack.
    return  TRUE    got a line
            FALSE   end of input
*/
{
    extern int fraifskip, frarptskip, fraexpmac;
    UNUSED(u);

    if (ignore)
    {
        ignore->skip_parse |= (fraifskip != FALSE) || (frarptskip != FALSE);
        ignore->skip_macro = ignore->skip_parse && !fraexpmac;
    }

    while( lzoe_fgets(buf, maxlen, yyin) == (char *)NULL)
    {
        if(currfstk == 0)
        {
            return 0;
        }
        else
        {
            lzoe_fclose(yyin);
            yyin = infilestk[--currfstk].fpt;
            emit_exiting_file(infilestk[currfstk].fnm);
        }
    }

    infilestk[currfstk].line++;

    return 1;
}

const char *fra_get_pos(int *line, void *u)
{
    UNUSED(u);
    *line = infilestk[currfstk].line;
    return  infilestk[currfstk].fnm;
}

int  fra_get_eof(void *u)
{
    UNUSED(u);

    if (currfstk == 0 && lzoe_feof(infilestk[currfstk].fpt))
        return 1;

    return 0;
}

void fra_rpt_err(const char *buf, void *u)
{
    UNUSED(u);
    emit_raw_error(buf);
}

struct parser_callbacks imasm_hooks =
{
    fra_next_line, NULL,
    fra_get_pos,   NULL,
    fra_get_eof,   NULL,
    fra_reexamine, NULL,
    fra_rpt_err,   NULL
};

int frareadrec(void)
/*
    description read a line, on end of file, pop the include file
            stack.
    return  FALSE   got a line
            TRUE    end of input
*/
{
    ignore_flags_t ignore = { 0, 0 };
    extern int fraignore;

    fryybuf[0] = 0;

    /* Get next line from loop buffer, if any. */
    if (frarptact > 0)  /* any active loops? */
        if (frarptnxt())
            return FALSE;

    if (get_parsed_line(&fryybuf, &fryy_bs, &ignore) == NULL)
    {
        if(frarptact > 0)
        {
            fraerror("REPEAT block active at EOF.  Resetting repeat stack.");
            frarptreset();
        }
        return TRUE;
    }

    fraignore = ignore.skip_parse != 0 ? TRUE : FALSE;

    if (frarptact > 0 && !ignore.skip_parse)
        frarptadd(fryybuf);

    return FALSE;
}

static int currtok=0; /* subscript of next token to return */
static int intokcnt=0; /* number of tokens in queue */

enum errtype_t {Yetprint, Yetsymbol, Yetreserved, Yetopcode,
        Yetconstant, Yetstring, Yetunprint, Yetinvalid };

typedef struct
{
    char *textstrt, *textend;
    YYSTYPE  lvalv;
    int tokv;
    enum errtype_t errtype;
} sq_type;

static sq_type *scanqueue, *lasttokfetch, *nexttokload;

static char *tempstrpool;
static char *tptrstr;

static int  sq_size = 0;

#define  CXC00_SKIP 0
#define  CXC01_SPACE    1
#define  CXC02_NL   2
#define  CXC03_LETTER   3
#define  CXC04_QUOTE    4
#define  CXC05_OTHER    5
#define  CXC06_DOLLAR   6
#define  CXC07_PERCENT  7
#define  CXC08_APP  8
#define  CXC09_BIN  9
#define  CXC10_OCT  10
#define  CXC11_DEC  11
#define  CXC12_SEMIC    12
#define  CXC13_LT   13
#define  CXC14_EQ   14
#define  CXC15_GT   15
#define  CXC16_AT   16
#define  CXC17_HEXU 17
#define  CXC18_B    18
#define  CXC19_D    19
#define  CXC20_H    20
#define  CXC21_OQ   21
#define  CXC22_HEXL 22
#define  CXC23_BL   23
#define  CXC24_DL   24
#define  CXC25_BSLASH   25
#define  NUMCHARSETS    26

#if 0
static char chartrantab[128] = {
/* 00 nul soh stx etx*/  CXC00_SKIP, CXC00_SKIP, CXC00_SKIP, CXC00_SKIP,
/* 04 eot enq ack bel*/  CXC00_SKIP, CXC00_SKIP, CXC00_SKIP, CXC00_SKIP,
/* 08 bs  ht  nl  vt */  CXC00_SKIP, CXC01_SPACE, CXC02_NL, CXC00_SKIP,
/* 0c np  cr  so  si */  CXC00_SKIP, CXC00_SKIP, CXC00_SKIP, CXC00_SKIP,
/* 10 dle dc1 dc2 dc3*/  CXC00_SKIP, CXC00_SKIP, CXC00_SKIP, CXC00_SKIP,
/* 14 dc4 nak syn etb*/  CXC00_SKIP, CXC00_SKIP, CXC00_SKIP, CXC00_SKIP,
/* 18 can em  sub esc*/  CXC00_SKIP, CXC00_SKIP, CXC00_SKIP, CXC00_SKIP,
/* 1c fs  gs  rs  us */  CXC00_SKIP, CXC00_SKIP, CXC00_SKIP, CXC00_SKIP,
/* 20 sp  !  "  # */  CXC01_SPACE, CXC03_LETTER, CXC04_QUOTE, CXC05_OTHER,
/* 24  $  %  &  ' */  CXC06_DOLLAR, CXC07_PERCENT, CXC03_LETTER, CXC08_APP,
/* 28  (  )  *  + */  CXC05_OTHER, CXC05_OTHER, CXC05_OTHER, CXC05_OTHER,
/* 2c  ,  -  .  / */  CXC05_OTHER, CXC05_OTHER, CXC05_OTHER, CXC05_OTHER,
/* 30  0  1  2  3 */  CXC09_BIN, CXC09_BIN, CXC10_OCT, CXC10_OCT,
/* 34  4  5  6  7 */  CXC10_OCT, CXC10_OCT, CXC10_OCT, CXC10_OCT,
/* 38  8  9  :  ; */  CXC11_DEC, CXC11_DEC, CXC05_OTHER, CXC12_SEMIC,
/* 3c  <  =  >  ? */  CXC13_LT, CXC14_EQ, CXC15_GT, CXC05_OTHER,
/* 40  @  A  B  C */  CXC16_AT, CXC17_HEXU, CXC18_B, CXC17_HEXU,
/* 44  D  E  F  G */  CXC19_D, CXC17_HEXU, CXC17_HEXU, CXC03_LETTER,
/* 48  H  I  J  K */  CXC20_H, CXC03_LETTER, CXC03_LETTER, CXC03_LETTER,
/* 4c  L  M  N  O */  CXC03_LETTER, CXC03_LETTER, CXC03_LETTER, CXC21_OQ,
/* 50  P  Q  R  S */  CXC03_LETTER, CXC21_OQ, CXC03_LETTER, CXC03_LETTER,
/* 54  T  U  V  W */  CXC03_LETTER, CXC03_LETTER, CXC03_LETTER, CXC03_LETTER,
/* 58  X  Y  Z  [ */  CXC03_LETTER, CXC03_LETTER, CXC03_LETTER, CXC05_OTHER,
/* 5c  \  ]  ^  _ */  CXC25_BSLASH, CXC05_OTHER, CXC03_LETTER, CXC03_LETTER,
/* 60  `  a  b  c */  CXC05_OTHER, CXC22_HEXL, CXC23_BL, CXC22_HEXL,
/* 64  d  e  f  g */  CXC24_DL, CXC22_HEXL, CXC22_HEXL, CXC03_LETTER,
/* 68  h  i  j  k */  CXC20_H, CXC03_LETTER, CXC03_LETTER, CXC03_LETTER,
/* 6c  l  m  n  o */  CXC03_LETTER, CXC03_LETTER, CXC03_LETTER, CXC21_OQ,
/* 70  p  q  r  s */  CXC03_LETTER, CXC21_OQ, CXC03_LETTER, CXC03_LETTER,
/* 74  t  u  v  w */  CXC03_LETTER, CXC03_LETTER, CXC03_LETTER, CXC03_LETTER,
/* 78  x  y  z  { */  CXC03_LETTER, CXC03_LETTER, CXC03_LETTER, CXC05_OTHER,
/* 7c vb  }  ~  del*/  CXC05_OTHER, CXC05_OTHER, CXC03_LETTER, CXC00_SKIP } ;
#else
static char chartrantab[128] = {
/* 00 nul soh stx etx*/  CXC00_SKIP, CXC00_SKIP, CXC00_SKIP, CXC00_SKIP,
/* 04 eot enq ack bel*/  CXC00_SKIP, CXC00_SKIP, CXC00_SKIP, CXC00_SKIP,
/* 08 bs  ht  nl  vt */  CXC00_SKIP, CXC01_SPACE, CXC02_NL, CXC00_SKIP,
/* 0c np  cr  so  si */  CXC00_SKIP, CXC00_SKIP, CXC00_SKIP, CXC00_SKIP,
/* 10 dle dc1 dc2 dc3*/  CXC00_SKIP, CXC00_SKIP, CXC00_SKIP, CXC00_SKIP,
/* 14 dc4 nak syn etb*/  CXC00_SKIP, CXC00_SKIP, CXC00_SKIP, CXC00_SKIP,
/* 18 can em  sub esc*/  CXC00_SKIP, CXC00_SKIP, CXC00_SKIP, CXC00_SKIP,
/* 1c fs  gs  rs  us */  CXC00_SKIP, CXC00_SKIP, CXC00_SKIP, CXC00_SKIP,
/* 20 sp  !  "  # */  CXC01_SPACE, CXC03_LETTER, CXC04_QUOTE, CXC05_OTHER,
/* 24  $  %  &  ' */  CXC06_DOLLAR, CXC07_PERCENT, CXC03_LETTER, CXC08_APP,
/* 28  (  )  *  + */  CXC05_OTHER, CXC05_OTHER, CXC05_OTHER, CXC05_OTHER,
/* 2c  ,  -  .  / */  CXC05_OTHER, CXC05_OTHER, CXC03_LETTER, CXC05_OTHER,
/* 30  0  1  2  3 */  CXC09_BIN, CXC09_BIN, CXC10_OCT, CXC10_OCT,
/* 34  4  5  6  7 */  CXC10_OCT, CXC10_OCT, CXC10_OCT, CXC10_OCT,
/* 38  8  9  :  ; */  CXC11_DEC, CXC11_DEC, CXC05_OTHER, CXC12_SEMIC,
/* 3c  <  =  >  ? */  CXC13_LT, CXC14_EQ, CXC15_GT, CXC05_OTHER,
/* 40  @  A  B  C */  CXC03_LETTER, CXC17_HEXU, CXC18_B, CXC17_HEXU,
/* 44  D  E  F  G */  CXC19_D, CXC17_HEXU, CXC17_HEXU, CXC03_LETTER,
/* 48  H  I  J  K */  CXC20_H, CXC03_LETTER, CXC03_LETTER, CXC03_LETTER,
/* 4c  L  M  N  O */  CXC03_LETTER, CXC03_LETTER, CXC03_LETTER, CXC21_OQ,
/* 50  P  Q  R  S */  CXC03_LETTER, CXC21_OQ, CXC03_LETTER, CXC03_LETTER,
/* 54  T  U  V  W */  CXC03_LETTER, CXC03_LETTER, CXC03_LETTER, CXC03_LETTER,
/* 58  X  Y  Z  [ */  CXC03_LETTER, CXC03_LETTER, CXC03_LETTER, CXC05_OTHER,
/* 5c  \  ]  ^  _ */  CXC25_BSLASH, CXC05_OTHER, CXC03_LETTER, CXC03_LETTER,
/* 60  `  a  b  c */  CXC05_OTHER, CXC22_HEXL, CXC23_BL, CXC22_HEXL,
/* 64  d  e  f  g */  CXC24_DL, CXC22_HEXL, CXC22_HEXL, CXC03_LETTER,
/* 68  h  i  j  k */  CXC20_H, CXC03_LETTER, CXC03_LETTER, CXC03_LETTER,
/* 6c  l  m  n  o */  CXC03_LETTER, CXC03_LETTER, CXC03_LETTER, CXC21_OQ,
/* 70  p  q  r  s */  CXC03_LETTER, CXC21_OQ, CXC03_LETTER, CXC03_LETTER,
/* 74  t  u  v  w */  CXC03_LETTER, CXC03_LETTER, CXC03_LETTER, CXC03_LETTER,
/* 78  x  y  z  { */  CXC03_LETTER, CXC03_LETTER, CXC03_LETTER, CXC05_OTHER,
/* 7c vb  }  ~  del*/  CXC05_OTHER, CXC05_OTHER, CXC03_LETTER, CXC00_SKIP } ;
#endif


#if DEBUG

static char * statelab[] = {
        " 0 start of label",
        " 1 comment",
        " 2 label",
        " 3 rest of line",
        " 4 symbol",
        " 5 dollar",
        " 6 hex dollar",
        " 7 at sign",
        " 8 octal at",
        " 9 percent",
        "10 bin percent",
        "11 quote string",
        "12 appos. string",
        "13 greater than",
        "14 less than",
        "15 base 2 maybe",
        "16 base 8 maybe",
        "17 base 10 maybe",
        "18 hex",
        "19 found b ",
        "20 found d",
        "21 bslash quote",
        "22 bslash appos",
        "23 greater than (NE)",
        };

static char *actlab[] = {
        " 0 skip/no op",
        " 1 load EOL token",
        " 2 start string",
        " 3 process label",
        " 4 save string char",
        " 5 load single char token",
        " 6 load EQ token",
        " 7 process symbol",
        " 8 load $ token",
        " 9 setup for $hex",
        "10 accumulate 0-9 constant",
        "11 accumulate A-F constant",
        "12 accumulate a-f constant",
        "13 load Constant token",
        "14 load @ token",
        "15 setup for @octal",
        "16 setup for %binary",
        "17 load % token",
        "18 load String token (double quoted)",
        "19 load GE token",
        "20 load GT token",
        "21 load LE token",
        "22 load NE token",
        "23 load LT token",
        "24 save numeric char 0-9",
        "25 save numeric char A-F",
        "26 save numeric char a-f",
        "27 convert numeric string base 2",
        "28 convert numeric string base 8",
        "29 convert numeric string base 10",
        "30 convert numeric string base 16",
        "31 save numeric 0xb",
        "32 save numeric 0xd",
        "33 set text start",
        "34 token choke",
        "35 load String token (single-quoted)"
        };

#endif  /* DEBUG */

static struct
{
    char action;
    char nextstate;
    char contin;
}   *thisact, characttab [24][NUMCHARSETS] =
{
/*
    STATE 0 =   {start of label}
*/
    {
    /* SKIP    */   /* SPACE   */   /* NL      */   /* LETTER  */
    /* QUOTE   */   /* OTHER   */   /* DOLLAR  */   /* PERCENT */
    /* APP     */   /* BIN     */   /* OCT     */   /* DEC     */
    /* SEMIC   */   /* LT      */   /* EQ      */   /* GT      */
    /* AT      */   /* HEXU    */   /* B       */   /* D       */
    /* H       */   /* OQ      */   /* HEXL    */   /* BL      */
    /* DL      */   /* BSLASH  */
    {0, 0, FALSE},  {0, 3, FALSE},  {1, 0, FALSE},  {2, 2, TRUE},
    {2,11, FALSE},  {5, 3, FALSE},  {33, 5, FALSE}, {33, 9, FALSE},
    {2,12, FALSE},  {2,15, TRUE},   {2,16, TRUE},   {2,17, TRUE},
    {0, 1, FALSE},  {0,14, FALSE},  {6, 3, FALSE},  {0,13, FALSE},
    {33, 7, FALSE}, {2, 2, TRUE},   {2, 2, TRUE},   {2, 2, TRUE},
    {2, 2, TRUE},   {2, 2, TRUE},   {2, 2, TRUE},   {2, 2, TRUE},
    {2, 2, TRUE},   {5, 3, FALSE}
    },

/*
    STATE 1 =   {comment}
*/
    {
    {0, 1, FALSE},  {0, 1, FALSE},  {1, 0, FALSE},  {0, 1, FALSE},
    {0, 1, FALSE},  {0, 1, FALSE},  {0, 1, FALSE},  {0, 1, FALSE},
    {0, 1, FALSE},  {0, 1, FALSE},  {0, 1, FALSE},  {0, 1, FALSE},
    {0, 1, FALSE},  {0, 1, FALSE},  {0, 1, FALSE},  {0, 1, FALSE},
    {0, 1, FALSE},  {0, 1, FALSE},  {0, 1, FALSE},  {0, 1, FALSE},
    {0, 1, FALSE},  {0, 1, FALSE},  {0, 1, FALSE},  {0, 1, FALSE},
    {0, 1, FALSE},  {0, 1, FALSE}
    },

/*
    STATE 2 =   {label}
*/
    {
    {0, 2, FALSE},  {3, 3, FALSE},  {3, 3, TRUE},   {4, 2, FALSE},
    {3, 3, TRUE},   {3, 3, TRUE},   {3, 3, TRUE},   {3, 3, TRUE},
    {3, 3, TRUE},   {4, 2, FALSE},  {4, 2, FALSE},  {4, 2, FALSE},
    {3, 1, FALSE},  {3,14, FALSE},  {3, 3, TRUE},   {3,13, FALSE},
    {3, 3, TRUE},   {4, 2, FALSE},  {4, 2, FALSE},  {4, 2, FALSE},
    {4, 2, FALSE},  {4, 2, FALSE},  {4, 2, FALSE},  {4, 2, FALSE},
    {4, 2, FALSE},  {3, 3, TRUE}
    },

/*
    STATE 3  =  {rest of line}
*/
    {
    {0, 3, FALSE},  {0, 3, FALSE},  {1, 0, FALSE},  {2, 4, TRUE},
    {2,11, FALSE},  {5, 3, FALSE},  {33, 5, FALSE}, {33, 9, FALSE},
    {2,12, FALSE},  {2,15, TRUE},   {2,16, TRUE},   {2,17, TRUE},
    {0, 1, FALSE},  {0,14, FALSE},  {6, 3, FALSE},  {0,13, FALSE},
    {33, 7, FALSE}, {2, 4, TRUE},   {2, 4, TRUE},   {2, 4, TRUE},
    {2, 4, TRUE},   {2, 4, TRUE},   {2, 4, TRUE},   {2, 4, TRUE},
    {2, 4, TRUE} ,  {5, 3, FALSE}
    },

/*
    STATE 4 =   {symbol}
*/
    {
    {0, 4, FALSE},  {7, 3, FALSE},  {7, 3, TRUE},   {4, 4, FALSE},
    {7, 3, TRUE},   {7, 3, TRUE},   {7, 3, TRUE},   {7, 3, TRUE},
    {7, 3, TRUE},   {4, 4, FALSE},  {4, 4, FALSE},  {4, 4, FALSE},
    {7, 1, FALSE},  {7,14, FALSE},  {7, 3, TRUE},   {7,13, FALSE},
    {7, 3, TRUE},   {4, 4, FALSE},  {4, 4, FALSE},  {4, 4, FALSE},
    {4, 4, FALSE},  {4, 4, FALSE},  {4, 4, FALSE},  {4, 4, FALSE},
    {4, 4, FALSE},  {7, 3, TRUE}
    },

/*
    STATE 5 =   {dollar}
*/
    {
    {0, 5, FALSE},  {8, 3, FALSE},  {8, 3, TRUE},   {8, 3, TRUE},
    {8, 3, TRUE},   {8, 3, TRUE},   {8, 3, TRUE},   {8, 3, TRUE},
    {8, 3, TRUE},   {9, 6, TRUE},   {9, 6, TRUE},   {9, 6, TRUE},
    {8, 1, FALSE},  {8,14, FALSE},  {8, 3, TRUE},   {8,13, FALSE},
    {8, 3, TRUE},   {9, 6, TRUE},   {9, 6, TRUE},   {9, 6, TRUE},
    {8, 3, TRUE},   {8, 3, TRUE},   {9, 6, TRUE},   {9, 6, TRUE},
    {9, 6, TRUE} ,  {8, 3, TRUE}
    },

/*
    STATE 6 =   {dollar hex}
*/

    {
    {0, 6, FALSE},  {13, 3, FALSE}, {13, 3, TRUE},  {13, 3, TRUE},
    {13, 3, TRUE},  {13, 3, TRUE},  {13, 3, TRUE},  {13, 3, TRUE},
    {13, 3, TRUE},  {10, 6, FALSE}, {10, 6, FALSE}, {10, 6, FALSE},
    {13, 1, FALSE}, {13,14, FALSE}, {13, 3, TRUE},  {13,13, FALSE},
    {13, 3, TRUE},  {11, 6, FALSE}, {11, 6, FALSE}, {11, 6, FALSE},
    {13, 3, TRUE},  {13, 3, TRUE},  {12, 6, FALSE}, {12, 6, FALSE},
    {12, 6, FALSE}, {13, 3, TRUE}
    },
/*
    STATE 7 =   {at sign}
*/
    {
    {0, 7, FALSE},  {14, 3, FALSE}, {14, 3, TRUE},  {14, 3, TRUE},
    {14, 3, TRUE},  {14, 3, TRUE},  {14, 3, TRUE},  {14, 3, TRUE},
    {14, 3, TRUE},  {15, 8, TRUE},  {15, 8, TRUE},  {14, 3, TRUE},
    {14, 1, FALSE}, {14,14, FALSE}, {14, 3, TRUE},  {14,13, FALSE},
    {14, 3, TRUE},  {14, 3, TRUE},  {14, 3, TRUE},  {14, 3, TRUE},
    {14, 3, TRUE},  {14, 3, TRUE},  {14, 3, TRUE},  {14, 3, TRUE},
    {14, 3, TRUE},  {14, 3, TRUE}
    },

/*
    STATE 8 =   {at octal}
*/
    {
    {0, 8, FALSE},  {13, 3, FALSE}, {13, 3, TRUE},  {13, 3, TRUE},
    {13, 3, TRUE},  {13, 3, TRUE},  {13, 3, TRUE},  {13, 3, TRUE},
    {13, 3, TRUE},  {10, 8, FALSE}, {10, 8, FALSE}, {13, 3, TRUE},
    {13, 1, FALSE}, {13,14, FALSE}, {13, 3, TRUE},  {13,13, FALSE},
    {13, 3, TRUE},  {13, 3, TRUE},  {13, 3, TRUE},  {13, 3, TRUE},
    {13, 3, TRUE},  {13, 3, TRUE},  {13, 3, TRUE},  {13, 3, TRUE},
    {13, 3, TRUE},  {13, 3, TRUE}
    },

/*
    STATE 9 =   {percent}
*/
    {
    {0, 9, FALSE},  {17, 3, FALSE}, {17, 3, TRUE},  {17, 3, TRUE},
    {17, 3, TRUE},  {17, 3, TRUE},  {17, 3, TRUE},  {17, 3, TRUE},
    {17, 3, TRUE},  {16,10, TRUE},  {17, 3, TRUE},  {17, 3, TRUE},
    {17, 1, FALSE}, {17,14, FALSE}, {17, 3, TRUE},  {17,13, FALSE},
    {17, 3, TRUE},  {17, 3, TRUE},  {17, 3, TRUE},  {17, 3, TRUE},
    {17, 3, TRUE},  {17, 3, TRUE},  {17, 3, TRUE},  {17, 3, TRUE},
    {17, 3, TRUE},  {17, 3, TRUE}
    },

/*
    STATE 10 =  {percent binary}
*/
    {
    {0,10, FALSE},  {13, 3, FALSE}, {13, 3, TRUE},  {13, 3, TRUE},
    {13, 3, TRUE},  {13, 3, TRUE},  {13, 3, TRUE},  {13, 3, TRUE},
    {13, 3, TRUE},  {10,10, FALSE}, {13, 3, TRUE},  {13, 3, TRUE},
    {13, 1, FALSE}, {13,14, FALSE}, {13, 3, TRUE},  {13,13, FALSE},
    {13, 3, TRUE},  {13, 3, TRUE},  {13, 3, TRUE},  {13, 3, TRUE},
    {13, 3, TRUE},  {13, 3, TRUE},  {13, 3, TRUE},  {13, 3, TRUE},
    {13, 3, TRUE},  {13, 3, TRUE}
    },

/*
    STATE 11 =  {quote string}
*/
    {
    {0,11, FALSE},  {4,11, FALSE},  {34, 3, TRUE},  {4,11, FALSE},
    {18, 3, FALSE}, {4,11, FALSE},  {4,11, FALSE},  {4,11, FALSE},
    {4,11, FALSE},  {4,11, FALSE},  {4,11, FALSE},  {4,11, FALSE},
    {4,11, FALSE},  {4,11, FALSE},  {4,11, FALSE},  {4,11, FALSE},
    {4,11, FALSE},  {4,11, FALSE},  {4,11, FALSE},  {4,11, FALSE},
    {4,11, FALSE},  {4,11, FALSE},  {4,11, FALSE},  {4,11, FALSE},
    {4,11, FALSE},  {4,21, FALSE}
    },

/*
    STATE 12 =  {app string}
*/
    {
    {0,12, FALSE},  {4,12, FALSE},  {34, 3, TRUE},  {4,12, FALSE},
    {4,12, FALSE},  {4,12, FALSE},  {4,12, FALSE},  {4,12, FALSE},
    {35,3, FALSE},  {4,12, FALSE},  {4,12, FALSE},  {4,12, FALSE},
    {4,12, FALSE},  {4,12, FALSE},  {4,12, FALSE},  {4,12, FALSE},
    {4,12, FALSE},  {4,12, FALSE},  {4,12, FALSE},  {4,12, FALSE},
    {4,12, FALSE},  {4,12, FALSE},  {4,12, FALSE},  {4,12, FALSE},
    {4,12, FALSE},  {4,22, FALSE}
    },

/*
    STATE 13 =  {greater than}
*/
    {
    {0,13, FALSE},  {20, 3, FALSE}, {20, 3, TRUE},  {20, 3, TRUE},
    {20, 3, TRUE},  {20, 3, TRUE},  {20, 3, TRUE},  {20, 3, TRUE},
    {20, 3, TRUE},  {20, 3, TRUE},  {20, 3, TRUE},  {20, 3, TRUE},
    {20, 1, FALSE}, {20,14, FALSE}, {19, 3, FALSE}, {20,13, FALSE},
    {20, 3, TRUE},  {20, 3, TRUE},  {20, 3, TRUE},  {20, 3, TRUE},
    {20, 3, TRUE},  {20, 3, TRUE},  {20, 3, TRUE},  {20, 3, TRUE},
    {20, 3, TRUE},  {20, 3, TRUE}
    },

/*
    STATE 14 =  {less than}
*/
    {
    {0,14, FALSE},  {23, 3, FALSE}, {23, 3, TRUE},  {23, 3, TRUE},
    {23, 3, TRUE},  {23, 3, TRUE},  {23, 3, TRUE},  {23, 3, TRUE},
    {23, 3, TRUE},  {23, 3, TRUE},  {23, 3, TRUE},  {23, 3, TRUE},
    {23, 1, FALSE}, {23,14, FALSE}, {21, 3, FALSE}, {22,23, FALSE},
    {23, 3, TRUE},  {23, 3, TRUE},  {23, 3, TRUE},  {23, 3, TRUE},
    {23, 3, TRUE},  {23, 3, TRUE},  {23, 3, TRUE},  {23, 3, TRUE},
    {23, 3, TRUE},  {23, 3, TRUE}
    },

/*
    STATE 15 =  {base 2 maybe}
*/
    {
    {0,15, FALSE},  {29, 3, FALSE}, {29, 3, TRUE},  {29, 3, TRUE},
    {29, 3, TRUE},  {29, 3, TRUE},  {29, 3, TRUE},  {29, 3, TRUE},
    {29, 3, TRUE},  {24,15, FALSE}, {24,16, FALSE}, {24,17, FALSE},
    {29, 1, FALSE}, {29,14, FALSE}, {29, 3, TRUE},  {29,13, FALSE},
    {29, 3, TRUE},  {25,18, FALSE}, {0,19, FALSE},  {0,20, FALSE},
    {30, 3, FALSE}, {28, 3, FALSE}, {26,18, FALSE}, {0,19, FALSE},
    {0,20, FALSE},  {29, 3, TRUE}
    },

/*
    STATE 16 =  {base 8 maybe}
*/
    {
    {0,16, FALSE},  {29, 3, FALSE}, {29, 3, TRUE},  {29, 3, TRUE},
    {29, 3, TRUE},  {29, 3, TRUE},  {29, 3, TRUE},  {29, 3, TRUE},
    {29, 3, TRUE},  {24,16, FALSE}, {24,16, FALSE}, {24,17, FALSE},
    {29, 1, FALSE}, {29,14, FALSE}, {29, 3, TRUE},  {29,13, FALSE},
    {29, 3, TRUE},  {25,18, FALSE}, {25,18, FALSE}, {0,20, FALSE},
    {30, 3, FALSE}, {28, 3, FALSE}, {26,18, FALSE}, {26,18, FALSE},
    {0,20, FALSE},  {29, 3, TRUE}
    },

/*
    STATE 17 =  {base10 maybe}
*/
    {
    {0,17, FALSE},  {29, 3, FALSE}, {29, 3, TRUE},  {29, 3, TRUE},
    {29, 3, TRUE},  {29, 3, TRUE},  {29, 3, TRUE},  {29, 3, TRUE},
    {29, 3, TRUE},  {24,17, FALSE}, {24,17, FALSE}, {24,17, FALSE},
    {29, 1, FALSE}, {29,14, FALSE}, {29, 3, TRUE},  {29,13, FALSE},
    {29, 3, TRUE},  {25,18, FALSE}, {25,18, FALSE}, {0,20, FALSE},
    {30, 3, FALSE}, {34, 3, FALSE}, {26,18, FALSE}, {26,18, FALSE},
    {0,20, FALSE},  {29, 3, TRUE}
    },

/*
    STATE 18 =  {hex}
*/
    {
    {0,18, FALSE},  {34, 3, FALSE}, {34, 3, TRUE},  {34, 3, TRUE},
    {34, 3, TRUE},  {34, 3, TRUE},  {34, 3, TRUE},  {34, 3, TRUE},
    {34, 3, TRUE},  {24,18, FALSE}, {24,18, FALSE}, {24,18, FALSE},
    {34, 1, FALSE}, {34,14, FALSE}, {34, 3, TRUE},  {34,13, FALSE},
    {34, 3, TRUE},  {25,18, FALSE}, {25,18, FALSE}, {25,18, FALSE},
    {30, 3, FALSE}, {34, 3, TRUE},  {26,18, FALSE}, {26,18, FALSE},
    {26,18, FALSE}, {34, 3, TRUE}
    },

/*
    STATE 19 =  {bin or hex}
*/
    {
    {0,19, FALSE},  {27, 3, FALSE}, {27, 3, TRUE},  {27, 3, TRUE},
    {27, 3, TRUE},  {27, 3, TRUE},  {27, 3, TRUE},  {27, 3, TRUE},
    {27, 3, TRUE},  {31,18, TRUE},  {31,18, TRUE},  {31,18, TRUE},
    {27, 1, FALSE}, {27,14, FALSE}, {27, 3, TRUE},  {27,13, FALSE},
    {27, 3, TRUE},  {31,18, TRUE},  {31,18, TRUE},  {31,18, TRUE},
    {31,18, TRUE},  {27, 3, TRUE},  {31,18, TRUE},  {31,18, TRUE},
    {31,18, TRUE},  {27, 3, TRUE}
    },

/*
    STATE 20 =  {dec or hex}
*/
    {
    {0,20, FALSE},  {29, 3, FALSE}, {29, 3, TRUE},  {29, 3, TRUE},
    {29, 3, TRUE},  {29, 3, TRUE},  {29, 3, TRUE},  {29, 3, TRUE},
    {29, 3, TRUE},  {32,18, TRUE},  {32,18, TRUE},  {32,18, TRUE},
    {29, 1, FALSE}, {29,14, FALSE}, {29, 3, TRUE},  {29,13, FALSE},
    {29, 3, TRUE},  {32,18, TRUE},  {32,18, TRUE},  {32,18, TRUE},
    {32,18, TRUE},  {29, 3, TRUE},  {32,18, TRUE},  {32,18, TRUE},
    {32,18, TRUE},  {29, 3, TRUE}
    },

/*
    STATE 21 =  {bslash quote}
*/
    {
    {0,21, FALSE},  {4,11, FALSE},  {34, 3, TRUE},  {4,11, FALSE},
    {4,11, FALSE},  {4,11, FALSE},  {4,11, FALSE},  {4,11, FALSE},
    {4,11, FALSE},  {4,11, FALSE},  {4,11, FALSE},  {4,11, FALSE},
    {4,11, FALSE},  {4,11, FALSE},  {4,11, FALSE},  {4,11, FALSE},
    {4,11, FALSE},  {4,11, FALSE},  {4,11, FALSE},  {4,11, FALSE},
    {4,11, FALSE},  {4,11, FALSE},  {4,11, FALSE},  {4,11, FALSE},
    {4,11, FALSE},  {4,11, FALSE}
    },

/*
    STATE 22 =  {bslash appos}
*/
    {
    {0,22, FALSE},  {4,12, FALSE},  {34, 3, TRUE},  {4,12, FALSE},
    {4,12, FALSE},  {4,12, FALSE},  {4,12, FALSE},  {4,12, FALSE},
    {4,12, FALSE},  {4,12, FALSE},  {4,12, FALSE},  {4,12, FALSE},
    {4,12, FALSE},  {4,12, FALSE},  {4,12, FALSE},  {4,12, FALSE},
    {4,12, FALSE},  {4,12, FALSE},  {4,12, FALSE},  {4,12, FALSE},
    {4,12, FALSE},  {4,12, FALSE},  {4,12, FALSE},  {4,12, FALSE},
    {4,12, FALSE},  {4,12, FALSE}
    },
/*
    STATE 23 =  {greater than after NE}
*/
    {
    {0, 23, FALSE}, {0, 3, FALSE}, {0,  3, TRUE},  {0, 3, TRUE},
    {0,  3, TRUE},  {0, 3, TRUE},  {0,  3, TRUE},  {0, 3, TRUE},
    {0,  3, TRUE},  {0, 3, TRUE},  {0,  3, TRUE},  {0, 3, TRUE},
    {0,  1, FALSE}, {0,14, FALSE}, {19, 3, FALSE}, {0,13, FALSE},
    {0,  3, TRUE},  {0, 3, TRUE},  {0,  3, TRUE},  {0, 3, TRUE},
    {0,  3, TRUE},  {0, 3, TRUE},  {0,  3, TRUE},  {0, 3, TRUE},
    {0,  3, TRUE},  {0, 3, TRUE}
    },
};

#define YEXL 32
static char yytext[YEXL];

static void erryytextex(int type)
{
    char * strptr, *endptr;
    int charcnt;

    strptr = (lasttokfetch->textstrt) - 1;
    if(type == STRING)
    {
        endptr = (lasttokfetch->textend) - 1;
        if(*endptr == '\n')
            endptr --;
    }
    else
    {
        endptr = (lasttokfetch->textend) - 2;
    }

    for(charcnt = 0; (strptr <= endptr) && charcnt < (YEXL - 1); charcnt ++)
    {
        yytext[charcnt] = *strptr++;
    }
    yytext[charcnt] = '\0';
}

int yylex(void)
{
    int scanstate;
    char *thistokstart = NULL;
    register char nextchar;
    int charset;
    int64_t consaccum = 0;
    int consbase = 0;

    if (!fryybuf || fryy_bs < 4096)
    {
        free(fryybuf);
        fryy_bs  = 4096;
        fryybuf  = (char *)calloc(fryy_bs, 1);
        frainptr = fryybuf;
    }

    if(currtok >= intokcnt)
    {
again:
        switch(nextreadact)
        {
        case Nra_new:  /* access next file */
            emit_entering_file(infilestk[++currfstk].fnm);
            yyin = infilestk[currfstk].fpt;
            nextreadact = Nra_normal;
            FALLTHROUGH_INTENDED;
        case Nra_normal:
            if(frareadrec())
            {
                /* EOF */;
                return 0;
            }
            break;

        case Nra_end:  /* pop file and access previous */
            if(currfstk > 0)
            {
                lzoe_fclose(yyin);
                yyin = infilestk[--currfstk].fpt;
                emit_exiting_file(infilestk[currfstk].fnm);
                if(frareadrec())
                {
                    /* EOF */;
                    return 0;
                }
                else
                {
                    nextreadact = Nra_normal;
                }
            }
            else
            {
                /* EOF */;
                return 0;
            }
            break;
        }

        if(listflag) emit_listed_line(fryybuf);
        else         emit_unlisted_line();

        if (fraignore)
            goto again;  /* don't scan it! */

        /* resize our parsing buffers if the incoming line buffer got huge */
        if (fryy_bs + 2 > sq_size)
        {
            free(scanqueue  );
            free(tempstrpool);
            scanqueue   = (sq_type *)malloc((fryy_bs + 2) * sizeof(sq_type));
            tempstrpool = (char    *)malloc((fryy_bs + 2) * 2);

            sq_size = fryy_bs + 2;
        }

        /* Scan a line */

        frainptr = fryybuf;

        currtok = intokcnt = 0;
        nexttokload = & scanqueue[0];

        tptrstr     = &tempstrpool[0];
        scanstate   = 0;
        whichsym    = Symopcode;
        labelarray  = LAno;

        while( (nextchar = *frainptr++) != '\0' )
        {
            charset = nextchar & 0x80 ? CXC03_LETTER /* Treat > 0x80 as letters */
                                      : chartrantab[nextchar & 0x7f];
            do {
                thisact =  & characttab [scanstate][charset];

#if DEBUG
    if(isprint(nextchar))
        printf("%c    ", nextchar);
    else
        printf("0x%2.2X ", nextchar);
    printf("%-18s %-33s %-11s  %2.2d\n",
        statelab[scanstate],
        actlab[thisact->action],
        thisact->contin ? "Continue" : "Swallow",
        thisact->nextstate);
#endif

                switch(thisact->action)
                {
                case 0: /* skip/no op */
                    break;

                case 1: /* load EOL token */
                    nexttokload->lvalv.longv = 0;
                    nexttokload->tokv = EOL;
                    nexttokload->errtype = Yetunprint;
                    nexttokload++;
                    intokcnt++;
                    break;

                case 2: /* start string */
                    thistokstart = tptrstr;
                    nexttokload->textstrt = frainptr;
                    break;

                case 3: /* process label */
                    {
                        struct symel *tempsym;

                        labelarray = LAmaybe;

                        *tptrstr++ = '\0';
                        tempsym = symbentry(thistokstart, SYMBOL);
                        if((tempsym->seg) != SSG_RESV)
                        {
                            nexttokload->tokv       = LABEL;
                            nexttokload->errtype    = Yetsymbol;
                            nexttokload->lvalv.symb = tempsym;
                        }
                        else
                        {
                            nexttokload->tokv       = tempsym->tok;
                            nexttokload->errtype    = Yetreserved;
                            nexttokload->lvalv.intv = tempsym->value;
                        }
                        nexttokload->textend = frainptr;
                        nexttokload++;
                        intokcnt++;
                    }
                    break;

                case 4: /* save string char */
                    *tptrstr++ = nextchar;
                    break;

                case 5: /* load single char token */
                    if (labelarray == LAmaybe && nextchar == '['
                            && whichsym == Symopcode)
                    {
                        labelarray = LAyes;
                        whichsym   = Symsym;
                    }
                    if (labelarray == LAyes && nextchar == ']')
                    {
                        labelarray = LAmaybe;
                        whichsym   = Symopcode;
                    }
                    nexttokload->lvalv.longv = 0;
                    nexttokload->tokv = nextchar;
                    nexttokload->errtype = Yetprint;
                    nexttokload++;
                    intokcnt++;
                    break;

                case 6: /* load EQ token */
                    nexttokload->lvalv.longv = 0;
                    nexttokload->tokv = KEOP_EQ;
                    nexttokload->errtype = Yetunprint;
                    nexttokload++;
                    intokcnt++;
                    break;

                case 7: /* process symbol */
                    {
                        register struct symel *symp;
                        register char *ytp;
                        int tempov;

                        *tptrstr++ = '\0';
                        if(whichsym == Symopcode)
                        {
                            for(ytp = thistokstart; *ytp != '\0';
                                ytp++)
                            {
                                if(islower(*ytp))
                                {
                                    *ytp = toupper(*ytp);
                                }
                            }
                            nexttokload->lvalv.intv
                                = tempov = findop(thistokstart);
                            nexttokload->tokv =
                                optab[tempov].token;
                            nexttokload->errtype = Yetopcode;
                            whichsym = Symsym;
                        }
                        else
                        {
                            symp = symbentry(thistokstart,SYMBOL);
                            if(symp->seg != SSG_RESV)
                            {
                                nexttokload->lvalv.symb = symp;
                                nexttokload->errtype = Yetsymbol;
                            }
                            else
                            {
                                nexttokload->lvalv.intv
                                    = symp->value;
                                nexttokload->errtype = Yetreserved;
                            }

                            nexttokload->tokv = symp->tok;
                        }

                        nexttokload->textend = frainptr;
                        nexttokload++;
                        intokcnt++;
                    }
                    break;

                case 8: /* load $ token */
                    nexttokload->lvalv.longv = 0;
                    nexttokload->tokv = '$';
                    nexttokload->errtype = Yetprint;
                    nexttokload++;
                    intokcnt++;
                    break;

                case 9: /* setup for $hex */
                    consbase = 16;
                    consaccum = 0;
                    break;

                case 10: /* accumulate 0-9 constant */
                    consaccum = (consaccum * consbase)
                        + (nextchar - '0');
                    break;

                case 11: /* accumulate A-F constant  */
                    consaccum = (consaccum * consbase)
                        + (nextchar - 'A' + 10);
                    break;

                case 12: /* accumulate a-f constant */
                    consaccum = (consaccum * consbase)
                        + (nextchar - 'a' + 10);
                    break;

                case 13: /* load Constant token */
                    nexttokload->lvalv.longv =
                        consaccum;
                    nexttokload->tokv = CONSTANT;
                    nexttokload->errtype = Yetconstant;
                    nexttokload->textend = frainptr;
                    nexttokload++;
                    intokcnt++;
                    break;

                case 14: /* load @ token */
                    nexttokload->lvalv.longv = 0;
                    nexttokload->tokv = '@';
                    nexttokload->errtype = Yetprint;
                    nexttokload++;
                    intokcnt++;
                    break;

                case 15: /* setup for @octal */
                    consbase = 8;
                    consaccum = 0;
                    break;

                case 16: /* setup for %binary */
                    consbase = 2;
                    consaccum = 0;
                    break;

                case 17: /* load % token */
                    nexttokload->lvalv.longv = 0;
                    nexttokload->tokv = '%';
                    nexttokload->errtype = Yetprint;
                    nexttokload++;
                    intokcnt++;
                    break;

                case 18: /* load String token (double quoted) */
                    *tptrstr++  = '\0';
                    nexttokload->lvalv.strng =
                        thistokstart;
                    nexttokload->tokv = STRING;
                    nexttokload->errtype = Yetstring;
                    nexttokload->textend = frainptr;
                    nexttokload++;
                    intokcnt++;
                    break;

                case 35: /* load String token (single quoted) */
                    *tptrstr++  = '\0';
                    if (tptrstr == thistokstart + 2)
                    {
                        nexttokload->lvalv.longv = *thistokstart & 0xFF;
                        nexttokload->tokv    = QCHAR;
                        nexttokload->errtype = Yetconstant;
                    } else
                    {
                        nexttokload->lvalv.strng =
                            thistokstart;
                        nexttokload->tokv = STRING;
                        nexttokload->errtype = Yetstring;
                    }
                    nexttokload->textend = frainptr;
                    nexttokload++;
                    intokcnt++;
                    break;

                case 19: /* load GE token */
                    nexttokload->lvalv.longv = 0;
                    nexttokload->tokv = KEOP_GE;
                    nexttokload->errtype = Yetunprint;
                    nexttokload++;
                    intokcnt++;
                    break;

                case 20: /* load GT token */
                    nexttokload->lvalv.longv = 0;
                    nexttokload->tokv = KEOP_GT;
                    nexttokload->errtype = Yetunprint;
                    nexttokload++;
                    intokcnt++;
                    break;

                case 21: /* load LE token */
                    nexttokload->lvalv.longv = 0;
                    nexttokload->tokv = KEOP_LE;
                    nexttokload->errtype = Yetunprint;
                    nexttokload++;
                    intokcnt++;
                    break;

                case 22: /* load NE token */
                    nexttokload->lvalv.longv = 0;
                    nexttokload->tokv = KEOP_NE;
                    nexttokload->errtype = Yetunprint;
                    nexttokload++;
                    intokcnt++;
                    break;

                case 23: /* load LT token */
                    nexttokload->lvalv.longv = 0;
                    nexttokload->tokv = KEOP_LT;
                    nexttokload->errtype = Yetunprint;
                    nexttokload++;
                    intokcnt++;
                    break;

                case 24: /* save numeric char 0-9 */
                    *tptrstr++ = nextchar - '0';
                    break;

                case 25: /* save numeric char A-F */
                    *tptrstr++ = nextchar - 'A' + 10;
                    break;

                case 26: /* save numeric char a-f */
                    *tptrstr++ = nextchar - 'a' + 10;
                    break;

                case 27: /* convert numeric string base 2 */
                    {
                        consaccum = 0;
                        while(thistokstart < tptrstr)
                        {
                            consaccum = (consaccum * 2) + *thistokstart++;
                        }
                        nexttokload->lvalv.longv = consaccum;
                        nexttokload->tokv = CONSTANT;
                        nexttokload->errtype = Yetconstant;
                        nexttokload->textend = frainptr;
                        nexttokload++;
                        intokcnt++;
                    }
                    break;

                case 28: /* convert numeric string base 8 */
                    {
                        consaccum = 0;
                        while(thistokstart < tptrstr)
                        {
                            consaccum = (consaccum * 8) + *thistokstart++;
                        }
                        nexttokload->lvalv.longv = consaccum;
                        nexttokload->tokv = CONSTANT;
                        nexttokload->errtype = Yetconstant;
                        nexttokload->textend = frainptr;
                        nexttokload++;
                        intokcnt++;
                    }
                    break;

                case 29: /* convert numeric string base 10 */
                    {
                        consaccum = 0;
                        while(thistokstart < tptrstr)
                        {
                            consaccum = (consaccum * 10) + *thistokstart++;
                        }
                        nexttokload->lvalv.longv = consaccum;
                        nexttokload->tokv = CONSTANT;
                        nexttokload->errtype = Yetconstant;
                        nexttokload->textend = frainptr;
                        nexttokload++;
                        intokcnt++;
                    }
                    break;

                case 30: /* convert numeric string base 16 */
                    {
                        consaccum = 0;
                        while(thistokstart < tptrstr)
                        {
                            consaccum = (consaccum * 16) + *thistokstart++;
                        }
                        nexttokload->lvalv.longv = consaccum;
                        nexttokload->tokv = CONSTANT;
                        nexttokload->errtype = Yetconstant;
                        nexttokload->textend = frainptr;
                        nexttokload++;
                        intokcnt++;
                    }
                    break;

                case 31: /* save numeric 0xb */
                    *tptrstr++ = 0xb;
                    break;

                case 32: /* save numeric 0xd */
                    *tptrstr++ = 0xd;
                    break;

                case 33: /* set text start */
                    nexttokload->textstrt = frainptr;
                    break;

                case 34: /* token choke */
                    nexttokload->lvalv.longv = 0L;
                    nexttokload->tokv = KTK_invalid;
                    nexttokload->errtype = Yetinvalid;
                    nexttokload->textend = frainptr;
                    nexttokload++;
                    intokcnt++;
                    break;
                }

                scanstate = thisact->nextstate;

            }  while( thisact->contin);
        }

        if(intokcnt <= 0)
        { /* no tokens in line (comment or whitespace overlength) */
            scanqueue[0].tokv = EOL;
            scanqueue[0].errtype = Yetunprint;
            scanqueue[0].lvalv.longv = 0;
            intokcnt = 1;
        }

        if(scanstate != 0)
        { /* no EOL */
            fraerror("Overlength/Unterminated Line");
        }
    }
    lasttokfetch = &scanqueue[currtok++];
    yylval = lasttokfetch->lvalv;
    return lasttokfetch->tokv;
}


int yyerror(char *str)
/*
    description first pass - output a parser error to intermediate file
*/
{
    char * taglab;

    if (!lasttokfetch)
    {
        emit_warnerr
        (
            infilestk[currfstk].fnm, infilestk[currfstk].line, ERROR,
            "%s near start of input (empty file?)",
            str
        );
        return 0;
    }

    switch(lasttokfetch->errtype)
    {
    case Yetprint:
        if( ! isprint(lasttokfetch->tokv))
        {
            emit_warnerr
            (
                infilestk[currfstk].fnm, infilestk[currfstk].line, ERROR,
                "%s at/before character \"^%c\"",
                str, PRINTCTRL(lasttokfetch->tokv)
            );
        }
        else
        {
            emit_warnerr
            (
                infilestk[currfstk].fnm, infilestk[currfstk].line, ERROR,
                "%s at/before character \"%c\"",
                str, lasttokfetch->tokv
            );
        }
        break;

    case Yetsymbol:
    case Yetreserved:
    case Yetopcode:
    case Yetconstant:
        erryytextex(SYMBOL);
        emit_warnerr
        (
            infilestk[currfstk].fnm, infilestk[currfstk].line, ERROR,
            "%s at/before token \"%s\"",
            str, yytext
        );
        break;

    case Yetinvalid:
        erryytextex(SYMBOL);
        emit_warnerr
        (
            infilestk[currfstk].fnm, infilestk[currfstk].line, ERROR,
            "%s at invalid token \"%s\"",
            str, yytext
        );
        break;

    case Yetstring:
        erryytextex(STRING);
        emit_warnerr
        (
            infilestk[currfstk].fnm, infilestk[currfstk].line, ERROR,
            "%s at/before string %s",
            str, yytext
        );
        break;

    case Yetunprint:
        switch(lasttokfetch->tokv)
        {
        case EOL:
            taglab = "End of Line";
            break;
        case KEOP_EQ:
            taglab = "\"=\"";
            break;
        case KEOP_GE:
            taglab = "\">=\"";
            break;
        case KEOP_GT:
            taglab = "\">\"";
            break;
        case KEOP_LE:
            taglab = "\"<=\"";
            break;
        case KEOP_NE:
            taglab = "\"<>\"";
            break;
        case KEOP_LT:
            taglab = "\"<\"";
            break;
        default:
            taglab = "Undeterminable Symbol";
            break;
        }
        emit_warnerr
        (
            infilestk[currfstk].fnm, infilestk[currfstk].line, ERROR,
            "%s at/before %s",
            str, taglab
        );
        break;

    default:
        emit_warnerr
        (
            infilestk[currfstk].fnm, infilestk[currfstk].line, ERROR,
            "%s - undetermined yyerror type", str
        );
        break;
    }
    return 0;
}