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- /*
- C BASED FORTH-83 MULTI-TASKING KERNEL: NULL TERMINATED STRINGS
-
- Copyright (C) 1988-1990 by Mikael R.K. Patel
-
- Computer Aided Design Laboratory (CADLAB)
- Department of Computer and Information Science
- Linkoping University
- S-581 83 LINKOPING
- SWEDEN
-
- Email: mip@ida.liu.se
-
- Started on: 30 June 1988
-
- Last updated on: 7 September 1990
-
- Dependencies:
- (cc) kernel.c, kernel.h
-
- Description:
- Null terminated string extension vocabulary for the tile forth
- multi-tasking kernel.
-
- Copying:
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 1, or (at your option)
- any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; see the file COPYING. If not, write to
- the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
-
- */
-
- VOID doparenquote()
- {
- spush(*ip++, INT32);
- }
-
- COMPILATION_CODE(parenquote, forth, "(\")", doparenquote);
-
- VOID doquote()
- {
- /* Scan for the string */
- (VOID) io_scan(thetib, '"');
-
- /* Make a copy of it */
- spush(thetib, CSTR);
- dosdup();
- snip();
-
- /* If compilation mode then thread a string literal */
- if (state.parameter) {
- spush(&parenquote, CODE_ENTRY);
- dothread();
- docomma();
- }
- }
-
- IMMEDIATE_CODE(quote, parenquote, "\"", doquote);
-
- VOID doslength()
- {
- tos.INT32 = (INT32) strlen(tos.CSTR);
- }
-
- NORMAL_CODE(slength, quote, "$length", doslength);
-
- VOID dosallot()
- {
- tos.CSTR = (CSTR) malloc((unsigned) tos.NUM32);
- }
-
- NORMAL_CODE(sallot, slength, "$allot", dosallot);
-
- VOID dosdup()
- {
- spush((CSTR) strcat((char *) malloc((unsigned) strlen(tos.CSTR) + 1), tos.CSTR), CSTR);
- }
-
- NORMAL_CODE(sdup_entry, sallot, "$dup", dosdup);
-
- VOID dosfree()
- {
- CSTR s;
-
- s = spop(CSTR);
- free(s);
- }
-
- NORMAL_CODE(sfree, sdup_entry, "$free", dosfree);
-
- VOID dosequal()
- {
- CSTR s;
-
- s = spop(CSTR);
- tos.INT32 = (STREQ(tos.CSTR, s) ? TRUE : FALSE);
- }
-
- NORMAL_CODE(sequal, sfree, "$equal", dosequal);
-
- VOID doscompare()
- {
- CSTR s;
-
- s = spop(CSTR);
- tos.INT32 = (INT32) strcmp(tos.CSTR, s);
- }
-
- NORMAL_CODE(scompare, sequal, "$cmp", doscompare);
-
- VOID doscat()
- {
- CSTR s1, s2;
-
- s2 = spop(CSTR);
- s1 = spop(CSTR);
- (VOID) strcat(s2, s1);
- }
-
- NORMAL_CODE(scat, scompare, "$cat", doscat);
-
- VOID dosprint()
- {
- CSTR s;
-
- s = spop(CSTR);
- (VOID) fprintf(io_outf, "%s", s);
- }
-
- NORMAL_CODE(sprint, scat, "$print", dosprint);
-
-