static int scandec(char *str, int *ind, int *chread, int (*func)(char))
/*;scandec*/
{
/* Scandec: scan for an integer followed possibly by a decimal point and
* another integer, with digits determined by satisfying func. 1 is returned
* if an integer is found, 2 if a there was a decimal point, 0 if no digits
* found.
* ind is the index into the string str,
* chread is the index into the input string line
* func is a func indicating valid characters for numbers being scanned
*/
int stat;
stat = scanidorint(str, ind, chread, func, 1);
if (line[*chread] == '.') {
if (line[*chread + 1] != '.') {
if (!stat) {
lexerr(lineno, colno + *chread, colno + *chread,
"Missing digit before decimal point");
str[(*ind)++] = '0';
}
str[(*ind)++] = '.';
(*chread)++;
if (!scanidorint(str, ind, chread, func, 1)) {
lexerr(lineno, colno + *chread - 1, colno + *chread - 1,
"Missing digit after decimal point");
str[(*ind)++] = '0';
}
return(2);
}
}
return(stat);
}
/*
* La procedure "fscanf_Point3f" lit en ascii un point flottant 3D.
* Entree :
* pp Point flottant 3D a lire.
*/
void fscanf_Point3f (Point3f *pp)
{
static const char *err_tbl[] = {
"float expected (coordinate ",
" of point)"
};
int t;
/* Lecture de la premiere coordonnee du point. */
if ((t = lex ()) != T_FLOAT && t != T_INT)
lexerr ("start",err_tbl[0], "X", err_tbl[1], NULL);
pp->x = (t == T_INT) ? (float) myint : myfloat;
/* Lecture de la seconde coordonnee du point. */
if ((t= lex ()) != T_FLOAT && t != T_INT)
lexerr ("start",err_tbl[0], "Y", err_tbl[1], NULL);
pp->y = (t == T_INT) ? (float) myint : myfloat;
/* Lecture de la troisieme coordonnee du point. */
if ((t= lex ()) != T_FLOAT && t != T_INT)
lexerr ("start",err_tbl[0], "Z", err_tbl[1], NULL);
pp->z = (t == T_INT) ? (float) myint : myfloat;
}
/*
* La procedure "fscanf_Point_list" lit en ascii une liste de points 3D.
* Entree :
* lp Liste de points a lire.
*/
void fscanf_Point3f_list (Point3f_list *lp)
{
static char proc_name[] = "fscanf_Point3f_list";
static char *err_tbl[] = {
"float expected (coordinate ",
" of point)"
};
Point3f *pp; /* point courant */
Point3f *pend; /* borne de "pp" */
/* Lecture du nombre de points de la liste. */
if (lex () != T_INT)
lexerr ("start", "integer expected (number of points 3D)", NULL);
lp->nbr = (Index) myint;
/* FC printf("nbr %d\n",lp->nbr); */
/* Allocation dynamique la liste de points. */
if (lp->nbr == 0)
lp->ptr = NULL;
else if ((lp->ptr = (Point3f *) malloc (lp->nbr * sizeof (Point3f)))
== NULL) {
perror (proc_name);
exit (1);
}
/* Lecture des points de la liste un a un. */
pp = lp->ptr;
pend = pp + lp->nbr;
for (; pp < pend; pp++) {
int t;
if ((t = lex ()) != T_FLOAT && t != T_INT)
lexerr ("start", err_tbl[0], "X", err_tbl[1], NULL);
/* FC printf("X %d %f\n",myint, myfloat); */
pp->x = (t == T_INT) ? (float) myint : myfloat;
if ((t = lex ()) != T_FLOAT && t != T_INT)
lexerr ("start", err_tbl[0], "Y", err_tbl[1], NULL);
/* FC printf("Y %d %f\n",myint, myfloat); */
pp->y = (t == T_INT) ? (float) myint : myfloat;
if ((t = lex ()) != T_FLOAT && t != T_INT)
lexerr ("start", err_tbl[0], "Z", err_tbl[1], NULL);
/* FC printf("Z %d %f\n",myint, myfloat); */
pp->z = (t == T_INT) ? (float) myint : myfloat;
}
}
/*
* La procedure "parser" fait l'analyse syntaxique du fichier source.
* Entree/Sortie :
* bsp Scene surfacique polygonale a lire.
*/
void parser (Bound_scene *bsp)
{
int token;
while ((token = lex ()) != T_EOF)
switch (token) {
case '$' :
switch (lex ()) {
case T_IDENT : /* saute la commande inconnue */
skip_cmd (/* stderr */);
unlex ();
break;
case T_EXIT :
return;
break;
case T_BOUND :
if (bsp->bound.nbr == BOUND_NBR) {
fprintf (stderr, "mire: too much bound\n");
return;
}
fscanf_Bound (
&(bsp->bound.ptr[bsp->bound.nbr++]));
break;
#ifdef used
case T_REMOVE :
fscanf_Remove (get_remove ());
break;
case T_VIEW :
fscanf_View_parameters (get_view_parameters ());
set_projection (void);
break;
#endif /* used */
default :
lexerr ("start", "keyword expected", NULL);
break;
}
break;
default :
lexerr ("start", "symbol '$' expected", NULL);
break;
}
}
static int scanidorint(char *str, int *ind, int *chread, int (*func)(char),
int ignore_break) /*;scanidorint*/
{
/* Scanidorint: scan for an integer or id, with allowed characters
* determined by satisfying function func. 1 returned if found, 0 if not.
*/
/* ind is the index into the string str,
* chread is the index into the input string line
* func is a function to be called to determine what chars are to
* be included in the integer or identifier
*/
int hadnum = 0;
while (1) {
if (line[*chread] == '_') {
lexerr(lineno, colno + *chread, colno + *chread,
"Break character misplaced");
(*chread)++;
continue;
}
if (!(*func)(line[*chread])) {
if (hadnum)
lexerr(lineno, colno + *chread - 1, colno + *chread - 1,
"Break character misplaced");
break;
}
str[(*ind)++] = line[(*chread)++];
hadnum = 1;
while ((*func)(line[*chread]))
str[(*ind)++] = line[(*chread)++];
if (line[*chread] != '_')
break;
(*chread)++;
if (!ignore_break)
str[(*ind)++] = '_';
}
return(hadnum);
}
static void checkbased(char *str, int *ind)/*;checkbased*/
{
/* Checkbased: check the validity of a based literal */
int base, err = 0;
char *pos;
sscanf(str, "%d", &base);
pos = strchr(str, '#');
if (base < 2 || base > 16) {
lexerr(lineno, colno, colno + pos - str - 1,
"Base not in range 2..16");
err = 1;
}
else
while (*++pos != '#') {
if (islower(*pos))
*pos = toupper(*pos);
if (isdigit(*pos) && *pos - '0' >= base
|| isalpha(*pos) && *pos - 'A' >= base - 10) {
lexerr(lineno, colno + pos - str, colno + pos - str,
"Invalid based-number digit");
err = 1;
break;
}
}
if (err) {
if (strchr(str, '.') == (char *)0) {
*ind = 1;
*str = '0';
}
else {
*ind = 3;
strcpy(str, "0.0");
}
}
}
/*
* La procedure "fscanf_Remove" lit en ascii les parametres d'elimination
* des faces.
* Entree :
* bp Parametres a lire.
*/
void fscanf_Remove (Byte *bp)
{
switch (lex ()) {
case T_NONE : *bp = IS_INSIDE; break;
case T_ABOVE : *bp |= IS_ABOVE; break;
case T_BACK : *bp |= IS_BACK; break;
case T_BELOW : *bp |= IS_BELOW; break;
case T_FRONT : *bp |= IS_FRONT; break;
case T_LEFT : *bp |= IS_LEFT; break;
case T_RIGHT : *bp |= IS_RIGHT; break;
default :
lexerr ("start", "remove: keyword \"none|above|back|below|front|left|right\" expected");
break;
}
}
char *cpp_catname(char *n1,char *n2)
{
static char cpp_name[IDMAX + 1];
#ifdef DEBUG
assert(n1 && n2);
#endif
if (strlen(n1) + strlen(n2) >= sizeof(cpp_name))
{
#if SCPP
lexerr(EM_ident2big); // identifier is too long
#else
assert(0);
#endif
cpp_name[0] = 0;
}
else
strcat(strcpy(cpp_name,n1),n2);
return cpp_name;
}
static void scanexp(char *str, int *ind, int *chread) /*;scanexp*/
{
/* Scanexp: scan for an (optional) exponent
* ind is the index into the string str,
* chread is the index into the input string line
*/
int oldchread;
if (line[*chread] != 'E' && line[*chread] != 'e')
return;
oldchread = *chread;
str[(*ind)++] = 'E';
*chread += 1;
if (line[*chread] == '+' || line[*chread] == '-')
str[(*ind)++] = line[(*chread)++];
if (!scanidorint(str, ind, chread, isdecimal, 1)) {
lexerr(lineno, colno + oldchread, colno + *chread - 1,
"Incomplete exponent");
str[(*ind)++] = '0';
}
}
static int getline() /*;getline*/
{
int ch, ind = 0;
if (feof(adafile))
return(EOF);
src_index = (src_index + 1) % NUM_LINES;
line = data = source_buf[src_index];
lineno++;
colno = 1;
for (;;) {
ch = getc(adafile);
if (ch==EOF) break;
if (ch <= 13 && ch >= 10) break;
if (ind == MAXLINE) {
char msg[80];
sprintf(msg,
"Line %d exceeds maximum length, truncated to %d characters",
lineno, MAXLINE);
lexerr(lineno, 1, 1, msg);
while ((ch = getc(adafile)) != EOF && !(ch<=13 && ch>=10));
break;
}
else {
data[ind++] = ch;
}
}
data[ind] = '\0';
if (ch == EOF && !ind)
return(EOF);
#ifdef DEBUG
if (trcopt)
fprintf(errfile, "%5d: %s\n", lineno, data);
if (termopt)
printf( "%5d: %s\n", lineno, data);
#endif
return(0);
}
/*
* La procedure "fscanf_Bound" lit en ascii une surface.
* Entree :
* bp Surface a lire.
*/
void fscanf_Bound (Bound *bp)
{
/* Lecture du type polygonale de la surface. */
skip_keyword (T_TYPE, "bound: keyword \"type\" expected");
if (lex () != T_INT)
lexerr ("start","bound_type: boolean expected (0=FALSE|~0=TRUE)", NULL);
bp->is_polygonal = (myint ? 1 : 0);
/* Lecture de la liste de points de la surface. */
skip_keyword (T_POINT_LIST, "bound: keyword \"point_list\" expected");
pusherr ("bound_point_list: ");
fscanf_Point3f_list (&bp->point);
poperr ();
/* Lecture de la liste de faces de la surface. */
skip_keyword (T_FACE_LIST, "bound: keyword \"face_list\" expected");
pusherr ("bound_face_list: ");
fscanf_Face_list (&bp->face);
poperr ();
}
MachineResult *get_next_token(ParserData *parser_data, int options)
{
// remember where we were last by saving source file pointer
static FILE *s;
// save current line
static char l[MAX_LINE_LENGTH_1];
static char *f;
static int i = 0;
// options for things like NOP
static int o = 0;
static MachineResult *r;
if (o & TOKEN_OPTION_NOP && r != NULL) {
o = options;
return r;
}
// grab another line
if (s != parser_data->source || f - l > MAX_LINE_LENGTH || *f == 0)
{
s = parser_data->source;
char *line = get_next_line(parser_data->source);
strcpy(l, line);
f = l;
i++;
// output line to listing file
if (parser_data->listing != NULL)
fprintf (parser_data->listing, "%-8d%s\n", i, line);
}
MachineResult result = machine_omega(f, parser_data->reserved_words, parser_data->symbol_table);
// do not increment line counter for eof
if (result.token->type == TOKEN_EOF) i--;
result.line_no = i;
MachineResult *resultPtr = (MachineResult *)malloc(sizeof(MachineResult));
memcpy(resultPtr, &result, sizeof(MachineResult));
// advance our internal pointer
f = result.f;
if (resultPtr->token->type == TOKEN_WHITESPACE)
return get_next_token(parser_data, options);
// write token to tokens file
if (parser_data->tokens != NULL) {
fprintf (parser_data->tokens, "%-10d%-20s%-20s%-6d(%s)\n", i, resultPtr->lexeme, token_type_to_str(resultPtr->token->type), resultPtr->token->attribute, attribute_to_str(resultPtr->token->attribute));
}
// handle lexical errors
if (resultPtr->token->type == TOKEN_LEXERR) {
// output errors to listing file
if (!(options & TOKEN_OPTION_SQUASH_ERRS))
lexerr(resultPtr, parser_data);
// do not return lexerr tokens
return get_next_token(parser_data, options);
}
// check for a nop
if (options & TOKEN_OPTION_NOP)
r = resultPtr;
o = options;
return resultPtr;
}
/*
* La procedure "fscanf_View_parameters" lit en ascii les parametres
* de visualisation.
* Entree :
* vp Parametres de visualisation a lire.
*/
void fscanf_View_parameters (View_parameters *vp)
{
/* Lecture du type de projection lors de la prise de vue. */
skip_keyword (T_TYPE, "view: keyword \"type\" expected");
switch (lex ()) {
case T_PARALLEL :
vp->type = PARALLEL;
break;
case T_PERSPECTIVE :
vp->type = PERSPECTIVE;
break;
default :
lexerr ("start", "view_type: keyword \"parallel|perspective\" expected");
break;
}
/* Lecture du centre de projection (oeil) de la prise de vue. */
skip_keyword (T_COP, "view: keyword \"cop\" expected");
pusherr ("view_cop: ");
fscanf_Point3f (&vp->cop);
poperr ();
/* Lecture du point de reference (cible) a la prise de vue. */
skip_keyword (T_VRP, "view: keyword \"vrp\" expected");
pusherr ("view_vrp: ");
fscanf_Point3f (&vp->vrp);
poperr ();
/* Lecture de la direction normale au plan de projection. */
skip_keyword (T_VPN, "view: keyword \"vpn\" expected");
pusherr ("view_vpn: ");
fscanf_Vector (&vp->vpn);
poperr ();
/* Lecture de la direction indiquant le haut de la projection. */
skip_keyword (T_VUP, "view: keyword \"vup\" expected");
pusherr ("view_vup: ");
fscanf_Vector (&vp->vup);
poperr ();
/* Lecture de la fenetre de projection de la prise de vue. */
skip_keyword (T_WINDOW, "view: keyword \"window\" expected");
pusherr ("view_window_umin: ");
fscanf_float (&vp->vwd.umin);
popuperr ("view_window_umax: ");
fscanf_float (&vp->vwd.umax);
popuperr ("view_window_vmin: ");
fscanf_float (&vp->vwd.vmin);
popuperr ("view_window_vmax: ");
fscanf_float (&vp->vwd.vmax);
poperr ();
/* Lecture des profondeurs de decoupage avant et arriere. */
skip_keyword (T_DEPTH, "view: keyword \"depth\" expected");
pusherr ("view_depth_front: ");
fscanf_float (&vp->depth.front);
popuperr ("view_depth_back: ");
fscanf_float (&vp->depth.back);
poperr ();
}
/*
* La procedure "fscanf_Face_list" lit en ascii une liste de faces.
* Entree :
* lp Liste de faces a lire.
*/
void fscanf_Face_list (Face_list *lp)
{
static char proc_name[] = "fscanf_Face_list";
Face *fp; /* face courante */
Face *fend; /* borne de "fp" */
/* Lecture du nombre de faces de la liste */
if (lex () != T_INT)
lexerr ("start","integer expected (number of faces)", NULL);
lp->nbr = (Index) myint;
/* Allocation dynamique de la liste de faces. */
if (lp->nbr == 0)
lp->ptr = NULL;
else if ((lp->ptr = (Face *) malloc (lp->nbr * sizeof (Face)))
== NULL) {
perror (proc_name);
exit (1);
}
/* Lecture des faces de la liste une a une. */
fp = lp->ptr;
fend = fp + lp->nbr;
for (; fp < fend; fp++) {
Vertex_list *lp = &fp->vertex;
Index *vp; /* sommet courant */
Index *vend; /* borne de "vp" */
/* Lecture du type polygonale de la face. */
if (lex () != T_INT)
lexerr ("start", "boolean expected (0=FALSE|~0=TRUE)", NULL);
fp->is_polygonal = (myint ? 1 : 0);
/* Lecture du nombre de sommets de la face. */
if (lex () != T_INT)
lexerr ("start", "integer expected (number of vertices)", NULL);
lp->nbr = (Index) myint;
/* Allocation dynamique du polygone de la face. */
if (lp->nbr <= DEFAULT_VSIZE)
lp->ptr = lp->tbl;
else if ((lp->ptr = (Index *) malloc (lp->nbr * sizeof (Index)))
== NULL) {
perror (proc_name);
exit (1);
}
/* Lecture des sommets de la face un a un. */
vp = lp->ptr;
vend = vp + lp->nbr;
for (; vp < vend; *vp++ = (Index) myint)
if (lex () != T_INT)
lexerr ("start", "integer expected (index of points 3D)", NULL);
}
}
struct prsstack *gettok() /*;gettok*/
{
/* Gettok: Scan and return the next token in the adafile, adding the */
/* token to namelist. */
static int nextcanbeprime = 0; /* The next token can be a prime */
static int canbeprime; /* The current token can be a prime */
struct prsstack *tok; /* Token to be returned */
while (1) {
while (1) {
while (*line == ' ' || *line == '\t') {
colno += (*line == '\t') ? (8 - ((colno - 1) % 8)) : 1;
line++;
}
if (!*line || *line == '-' && line[1] == '-')
break;
canbeprime = nextcanbeprime;
nextcanbeprime = 0;
if (isalpha(*line)) { /* Scan identifiers */
char id[MAXLINE + 1];
int idind = 0, chread = 0;
int tokind, toksym;
scanidorint(id, &idind, &chread, isletterordigit, 0);
if (id[idind - 1] == '_')
idind--;
id[idind] = '\0';
convtoupper(id);
tokind = namemap(id, idind);
toksym = MIN(tokind, ID_SYM);
tok = newtoken(toksym, tokind, lineno, colno);
nextcanbeprime = toksym == ID_SYM || toksym == RANGE_SYM
|| toksym == ALL_SYM;
colno += chread;
line += chread;
return(tok);
}
else if (isdigit(*line) || *line == '.' && isdigit(line[1])) {
/* Scan numeric literals */
char num[MAXLINE + 3];
int ind = 0, chread = 0, result;
char ch;
/* ind is the index into the num string */
/* chread is the index into the line input string */
result = scandec(num, &ind, &chread, isdecimal);
ch = line[chread];
if (result == 1 && (ch == '#' || ch == ':')) {
/* Scan for the rest of a based literal */
num[ind++] = '#';
chread++;
if (!scandec(num, &ind, &chread, ishex)) {
lexerr(lineno, colno + chread - 1, colno + chread - 1,
"Incomplete based number");
num[ind++] = '0';
}
num[ind++] = '#';
if (line[chread] != ch) {
if (line[chread] == '#' + ':' - ch) {
lexerr(lineno, colno + chread, colno + chread,
"Expect #'s or :'s in based number to match");
chread++;
}
else {
char msg[50];
sprintf(msg, "Expect '%c' after last digit", ch);
lexerr(lineno, colno + chread - 1,
colno + chread - 1, msg);
}
}
else
chread++;
checkbased(num, &ind);
}
scanexp(num, &ind, &chread);
if (isalpha(line[chread]))
lexerr(lineno, colno, colno + chread - 1,
"Number should be separated from adjacent identifier");
num[ind] = '\0';
tok = newtoken(NUMBER_SYM, namemap(num, ind), lineno, colno);
colno += chread;
line += chread;
return(tok);
}
else if (*line == '\'') {
int err = 0;
if (line[1] != '\0' && line[2] == '\'' &&
(!canbeprime || line[1] != '(')) {
/* Scan a character literal */
char str[4];
int len = 3;
strcpy(str, "' '");
if (!isprint(line[1]) && line[1] != ' ') {
char msg[80];
sprintf(msg,
"Invalid character %s in character literal replaced by space",
nonprintingmsg[line[1]]);
lexerr(lineno, colno + 1, colno + 1, msg);
len = (line[1] == '\t') ? (10 - (colno % 8)) : 2;
}
else
str[1] = line[1];
tok = newtoken(CHAR_SYM, namemap(str, 3), lineno, colno);
colno += len;
line += 3;
return(tok);
}
else if (!canbeprime) {
/* Possibly a single quote delimited string */
int ind;
if (line[1] == '\'')
ind = 1;
else {
ind = 3;
while (line[ind]) {
if (line[ind] == '\'') {
if (line[ind + 1] && line[ind + 2] == '\'') {
ind = -1;
break;
}
else {
if (line[ind + 1] != '\'')
break;
ind++;
}
}
ind++;
}
}
if (ind > -1 && line[ind]) {
err = 1;
lexerr(lineno, colno, colno + ind,
"Expect double quotes to delimit a character string");
do
if (line[ind] == '\'')
line[ind] = '"';
while (ind--);
}
}
if (!err) { /* A prime */
int ind = namemap("'", 1);
tok = newtoken(ind, ind, lineno, colno);
colno++;
line++;
return(tok);
}
}
else if (*line == '"' || *line == '%') {
/* Scan a string literal */
int col = colno;
int oldindex = 0, newindex = -1;
char bracket = *line;
char nxtchr ;
char tmpstr[MAXLINE + 1];
int save_col; /* these are maintained to restore line */
char *save_line; /* in case of missing string bracket */
int save_newindex;
if ( (strchr(line+1, bracket)) == 0 ) {
char bracket_str[2];
*bracket_str = bracket;
*(bracket_str + 1) = '\0';
tok = newtoken(ERROR_SYM, namemap(bracket_str, 1),
lineno, colno);
line++;
colno++;
return(tok);
}
while (1) {
save_line = line + oldindex + 1;
save_col = col + 1;
save_newindex = newindex + 1;
do {
col++;
oldindex++;
newindex++;
nxtchr = line[oldindex] ;
tmpstr[newindex] = nxtchr ;
}
/* test separately for bracket for use of % as delimiter */
while (nxtchr != bracket && IS_STRING_CHAR(nxtchr));
if (line[oldindex] == bracket) {
if (line[oldindex + 1] == bracket) {
tmpstr[newindex] = bracket ;
oldindex++;
col++;
}
else {
tmpstr[newindex] = '\0';
tok = newtoken(STRING_SYM, namemap(tmpstr,
newindex), lineno, colno+1);
colno = col + 1;
line += oldindex + 1;
return(tok);
}
}
else if (line[oldindex] == '"') {
oldindex++;
lexerr(lineno, col, col,
"% delimited string contains \", being ignored");
}
else if (line[oldindex] == '\0') {
lexerr(lineno, colno, colno, "Missing string bracket");
/* restore values of line and colno to values prior to
* last set of string characters
*/
line = save_line;
colno = save_col;
/* insert a closing string bracket */
tmpstr[save_newindex] = bracket;
tmpstr[save_newindex + 1] = '\0';
tok = newtoken(STRING_SYM, namemap(tmpstr,
save_newindex + 1), lineno, colno);
return(tok);
}
/*
else if (isprint(line[oldindex]) || line[oldindex] == ' ')
tmpstr[newindex] = line[oldindex];
*/
else {
char msg[80];
sprintf(msg, "Invalid character %s in string deleted",
nonprintingmsg[line[oldindex++]]);
lexerr(lineno, col, col, msg);
col += (line[oldindex] == '\t') ? 7 - ((col-1)%8) : -1;
}
}
}
else if (ISDELIMITER(*line)) /* Scan a delimiter */
{
int len = 1, ind;
char str[3];
switch (*line) {
case '=' :
if (line[1] == '>')
len = 2;
break;
case '*' :
if (line[1] == '*')
len = 2;
break;
case ':' :
case '/' :
if (line[1] == '=')
len = 2;
break;
case '>' :
if (line[1] == '=' || line[1] == '>')
len = 2;
break;
case '<' :
if (line[1] == '=' || line[1] == '<' || line[1] == '>')
len = 2;
break;
case '.' :
if (line[1] == '.')
len = 2;
break;
case '!' :
*line = '|';
break;
case '[' : /* Change to a "(" */
lexerr(lineno, colno, colno,
"Bad character \"[\", replaced by \"(\".") ;
line[0] = '(' ;
break ;
case ']' : /* Change to a ")" */
/* Note that this case falls through to the next one */
lexerr(lineno, colno, colno,
"Bad character \"]\", replaced by \")\".") ;
line[0] = ')' ;
case ')' :
nextcanbeprime = 1;
break;
}
strncpy(str, line, len);
str[len] = '\0';
ind = namemap(str, len);
tok = newtoken(ind, ind, lineno, colno);
colno += len;
line += len;
return(tok);
}
else if (*line == '_') { /* An error- an underline _ */
lexerr(lineno, colno, colno, "Break character misplaced");
colno++;
line++;
}
else { /* An error- an unknown character */
char msg[80];
char ch[2];
*ch = *line;
ch[1] = '\0';
sprintf(msg, "Bad character in file ignored: %s",
(isprint(*line)) ? ch : nonprintingmsg[*line]);
lexerr(lineno, colno, colno, msg);
if (isprint(*line))
colno++;
line++;
}
}
if (getline() == EOF)
return(newtoken(EOFT_SYM, EOFT_SYM, lineno, colno));
}
}
