NODE *reader(FILE *strm, char *prompt) {
int c = 0, dribbling, vbar = 0, paren = 0;
int bracket = 0, brace = 0, p_pos, contin=1, insemi=0, raw=0;
char *phys_line, *lookfor = ender;
NODETYPES this_type = STRING;
NODE *ret;
char *old_stringptr = print_stringptr;
int old_stringlen = print_stringlen;
fix_turtle_shownness();
//readingInstruction = !strcmp(prompt, "? ");
readingInstruction = (strm == stdin);
#ifdef HAVE_WX
wx_refresh();
if(readingInstruction) {
wx_enable_scrolling();
}
#endif
print_stringptr = ender;
print_stringlen = 99;
ndprintf(NULL, "\n%p\n", theName(Name_end));
*print_stringptr = '\0';
print_stringptr = old_stringptr;
print_stringlen = old_stringlen;
if (!strcmp(prompt, "RW")) { /* called by readword */
prompt = "";
contin = 0;
}
if (!strcmp(prompt, "RAW")) { /* called by readrawline */
prompt = "";
contin = 0;
raw = 1;
}
charmode_off();
#ifdef WIN32
dribbling = 0;
#else
dribbling = (dribblestream != NULL && strm == stdin);
#endif
if (p_line == 0) {
p_line = malloc(MAX_PHYS_LINE);
if (p_line == NULL) {
err_logo(OUT_OF_MEM, NIL);
return UNBOUND;
}
p_end = &p_line[MAX_PHYS_LINE-1];
}
phys_line = p_line;
if (strm == stdin && *prompt) {
if (interactive) {
rd_print_prompt(prompt);
#ifdef WIN32
win32_update_text();
#endif
}
}
if (strm == stdin) {
input_blocking++;
erract_errtype = FATAL;
}
#ifndef TIOCSTI
if (!setjmp(iblk_buf)) {
#endif
c = rd_getc(strm);
/* if ((c=='\b' || c=='\127') && strm==stdin && interactive) {
silent_load(LogoLogo, logolib);
c = rd_getc(strm);
} */ /* 6.0 */
#ifdef mac
if (c == '\r') c = '\n'; /* seen in raw mode by keyp, never read */
#endif
while (c != EOF && (vbar || paren || bracket || brace || c != '\n')
&& NOT_THROWING) {
if (dribbling) rd_putc(c, dribblestream);
if (!raw && c == '\\' && (c = rd_getc(strm)) != EOF) {
if (dribbling) rd_putc(c, dribblestream);
c = setparity(c);
this_type = BACKSLASH_STRING;
if (c == setparity('\n') && strm == stdin) {
if (interactive) zrd_print_prompt("\\ ");
}
}
if (c != EOF) into_line(c);
if (raw) {
c = rd_getc(strm);
continue;
}
if (*prompt && (c&0137) == ((*lookfor)&0137)) {
lookfor++;
if (*lookfor == 0) {
if (deepend_proc_name != NIL)
err_logo(DEEPEND, deepend_proc_name);
else
err_logo(DEEPEND_NONAME, NIL);
break;
}
} else lookfor = ender;
if (c == '|' && !insemi) {
vbar = !vbar;
this_type = VBAR_STRING;
} else if (contin && !vbar && !insemi) {
if (c == '(') paren++;
else if (paren && c == ')') paren--;
else if (c == '[') bracket++;
else if (bracket && c == ']') bracket--;
else if (c == '{') brace++;
else if (brace && c == '}') brace--;
else if (c == ';') insemi++;
}
if (this_type == STRING && strchr(special_chars, c))
this_type = VBAR_STRING;
if (/* (vbar || paren ...) && */ c == '\n') {
insemi = 0;
if (strm == stdin) {
if (interactive) zrd_print_prompt(vbar ? "| " : "~ ");
}
}
while (!vbar && c == '~' && (c = rd_getc(strm)) != EOF) {
int gotspc = 0;
while (c == ' ' || c == '\t') {
gotspc = 1;
c = rd_getc(strm);
}
if (dribbling) rd_putc(c, dribblestream);
if (c != '\n' && gotspc) into_line(' ');
into_line(c);
if (c == '\n') {
insemi = 0;
if (interactive && strm == stdin) zrd_print_prompt("~ ");
}
else if (c == '(') paren++;
else if (paren && c == ')') paren--;
else if (c == '[') bracket++;
else if (bracket && c == ']') bracket--;
else if (c == '{') brace++;
else if (brace && c == '}') brace--;
else if (c == ';') insemi++;
}
if (c != EOF) c = rd_getc(strm);
}
#ifndef TIOCSTI
}
#endif
*phys_line = '\0';
input_blocking = 0;
#if defined(__RZTC__) && !defined(WIN32) /* sowings */
fix_cursor();
if (interactive && strm == stdin) newline_bugfix();
#endif
if (dribbling)
rd_putc('\n', dribblestream);
if (c == EOF && strm == stdin) {
if (interactive) clearerr(stdin);
rd_print_prompt("\n");
}
if (phys_line == p_line) return(Null_Word); /* so emptyp works */
ret = make_strnode(p_line, (struct string_block *)NULL, (int)strlen(p_line),
this_type, strnzcpy);
#if 0
if (strm == stdin && !strcmp(prompt, "? ")){
char *histline = malloc(1+strlen(p_line));
strcpy(histline, p_line);
*hist_inptr++ = histline;
if (hist_inptr >= &cmdHistory[HIST_MAX]) {
hist_inptr = cmdHistory;
}
if (*hist_inptr) {
free(*hist_inptr);
*hist_inptr = 0;
}
hist_outptr = hist_inptr;
}
#endif
//added (evan)
readingInstruction = 0;
return(ret);
}
int rd_getc(FILE *strm) {
int c;
#ifdef WIN32
MSG msg;
#endif
#ifndef WIN32 /* skip this section ... */
#ifdef __RZTC__
if (strm == stdin) zflush();
c = ztc_getc(strm);
#else
c = getc(strm);
#endif
if (strm == stdin && c != EOF) update_coords(c);
#ifndef mac
if (c == '\r') return rd_getc(strm);
#endif
#ifdef ibm
if (c == 17 && interactive && strm==stdin) { /* control-q */
to_pending = 0;
err_logo(STOP_ERROR,NIL);
if (input_blocking) {
#ifdef SIG_TAKES_ARG
logo_stop(0);
#else
logo_stop();
#endif
}
}
if (c == 23 && interactive && strm==stdin) { /* control-w */
#ifndef __RZTC__
getc(strm); /* eat up the return */
#endif
#ifdef SIG_TAKES_ARG
logo_pause(0);
#else
logo_pause();
#endif
return(rd_getc(strm));
}
#endif
#else /* WIN32 */
if (strm == stdin) {
if (winPasteText && !line_avail) winDoPaste();
if (!line_avail) {
win32_text_cursor();
while (GetMessage(&msg, NULL, 0, 0)) {
TranslateMessage(&msg);
DispatchMessage(&msg);
if (line_avail)
break;
}
}
c = read_line[read_index++];
if (c == 17 && interactive && strm==stdin) { /* control-q */
to_pending = 0;
err_logo(STOP_ERROR,NIL);
line_avail = 0;
free(read_line);
if (input_blocking) logo_stop(0);
return('\n');
}
if (c == 23 && interactive && strm==stdin) { /* control-w */
line_avail = 0;
free(read_line);
logo_pause(0);
return(rd_getc(strm));
}
if (c == '\n') {
line_avail = 0;
free(read_line);
}
}
else /* reading from a file */
c = getc(strm);
#endif /* WIN32 */
#ifdef ecma
return((c == EOF) ? c : ecma_clear(c));
#else
return(c);
#endif
}
void parse(Reader *rd) {
for(;;) {
wr_putc(&wr, rd_getc(rd));
}
}
