--- Begin Message ---
Package: beef
Version: 0.0.6-2
Severity: wishlist
Tags: patch
There is an extension to Brainfuck (as well as other esoterical
languages)
called EsoAPI (mentioned http://esolangs.org/wiki/EsoAPI, defined
http://kidsquid. 99k .org/programs/esoapi/esoapi.html, example
implemention http://esolangs.org/wiki/User:JayCampbell/weave.rb).
I've attached a patch to add support for this API to the beef source.
I haven't yet done it for the version in experimental (1.0.0) yet.
You can test via the attache esoapi-hello.bf. Before the patch it will
print "EsoAPI required\n", and after the patch will print "Hello
World!\n"
Cheers,
Hugh
-- System Information:
Debian Release: 6.0.6
APT prefers stable-updates
APT policy: (500, 'stable-updates'), (500, 'stable')
Architecture: amd64 (x86_64)
Kernel: Linux 2.6.32-5-amd64 (SMP w/4 CPU cores)
Locale: LANG=en_NZ.UTF-8, LC_CTYPE=en_NZ.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/bash
Versions of packages beef depends on:
ii libc6 2.11.3-4 Embedded GNU C Library:
Shared lib
beef recommends no packages.
beef suggests no packages.
-- no debconf information
*** beef-esoapi.patch
commit 9c0ddfd01eeee319544e5861cf9678a554f56f4e
Author: Hugh Davenport <[email protected]>
Date: Sun Dec 9 22:55:39 2012 +1300
Add EsoAPI
diff --git a/src/beef.h b/src/beef.h
index b3937f1..5bb7309 100644
--- a/src/beef.h
+++ b/src/beef.h
@@ -26,6 +26,8 @@
#include <stdlib.h>
#include <ctype.h>
#include <string.h>
+#include <unistd.h>
+#include <fcntl.h>
/* Program name and version */
#define PROGRAM_NAME "beef"
@@ -42,6 +44,8 @@
#define ON '1'
#define OFF '0'
+#define SECTOR_SIZE 512
+
/* This struct defines an istruction */
struct instruction {
char type;
@@ -66,7 +70,7 @@ struct instruction *code;
/* Various functions */
struct tape_cell *new_cell ();
struct instruction *load (FILE *fp, char debug);
-void eval (struct instruction *code, char on_eof);
+void eval (struct instruction *code, char on_eof, int esoapidsk, char
lastprinted);
void tape_dump ();
void code_dump (struct instruction *code, long indent);
diff --git a/src/eval.c b/src/eval.c
index 38c9038..7aedafa 100644
--- a/src/eval.c
+++ b/src/eval.c
@@ -20,9 +20,12 @@
#include "beef.h"
-void eval (struct instruction *current, char on_eof)
+void eval (struct instruction *current, char on_eof, int esoapidsk,
char lastprinted)
{
- long i;
+ long i, j;
+ ssize_t size;
+ struct tape_cell *temp;
+ char buffer[SECTOR_SIZE];
/* Continue as long as the istruction is not the last */
while (current->type != ']') {
@@ -73,8 +76,53 @@ void eval (struct instruction *current, char on_eof)
case '.':
/* Repeat current->quantity times */
for (i = 0; i < (current->quantity); i++) {
- /* Print the char which is in the current cell */
- fputc (tape->content, stdout);
+ if (esoapidsk != -1 && lastprinted == 0) {
+ switch (tape->content) {
+ case 1:
+ lseek (esoapidsk, SECTOR_SIZE, SEEK_CUR);
+ break;
+ case 2:
+ lseek (esoapidsk, -SECTOR_SIZE, SEEK_CUR);
+ break;
+ case 3:
+ size = read (esoapidsk, buffer, SECTOR_SIZE);
+ /* temp points to the current cell */
+ temp = tape;
+ for (j = 0; j < size; j++) {
+ if (temp->next == NULL) {
+ /* Create new cell if necessary */
+ temp->next = new_cell ();
+ (temp->next)->previous = temp;
+ }
+ /* Move forward one cell */
+ temp = temp->next;
+ temp->content = buffer[j];
+ }
+ break;
+ case 4:
+ /* temp points to the current cell */
+ temp = tape;
+ for (size = 0; temp->next != NULL && size <
SECTOR_SIZE; size++) {
+ temp = temp->next;
+ buffer[size] = temp->content;
+ }
+ write (esoapidsk, buffer, size);
+ break;
+ case 5:
+ lseek (esoapidsk, 0, SEEK_SET);
+ break;
+ case 8:
+ tape->content = 0;
+ break;
+ default:
+ /* Print the char which is in the current cell */
+ fputc (tape->content, stdout);
+ }
+ } else {
+ /* Print the char which is in the current cell */
+ fputc (tape->content, stdout);
+ }
+ lastprinted = tape->content;
}
break;
case ',':
@@ -107,7 +155,7 @@ void eval (struct instruction *current, char
on_eof)
/* Repeat as long as the current cell is not empty */
while (tape->content != '\0') {
/* Run the loop */
- eval (current->loop, on_eof);
+ eval (current->loop, on_eof, esoapidsk, lastprinted);
}
break;
diff --git a/src/main.c b/src/main.c
index 89d0dcc..f406fa2 100644
--- a/src/main.c
+++ b/src/main.c
@@ -30,6 +30,9 @@ int main (int argc, char **argv)
char on_eof = STORE_ZERO;
/* Debug on/off (default is off) */
char debug = OFF;
+ /* EsoAPI on/off (default is off) */
+ char esoapi = OFF;
+ int esoapidsk = -1;
int count;
int num;
@@ -51,6 +54,7 @@ Options:\n\
-e Store an EOF in the current cell when read an EOF from
input\n\
-n Do nothing when read an EOF from input\n\
-d Enable the debugging command `#' (which dumps the
tape)\n\
+ -a Enable EsoAPI support, reading from file esoapi.dsk\n\
--version Show version number and exit successfully\n\
--help Show this help and exit succesfully\n", PROGRAM_NAME);
return 0;
@@ -71,6 +75,19 @@ Copyright (C) 2005-2007 KiyuKo\n", PROGRAM_NAME,
VERSION);
on_eof = DO_NOTHING;
if (!strcmp (argv[num], "-d"))
debug = ON;
+ if (!strcmp (argv[num], "-a"))
+ esoapi = ON;
+ }
+
+ /* Try to open esoapi.dsk */
+ if (esoapi == ON) {
+ esoapidsk = open ("esoapi.dsk", O_RDWR|O_CREAT, 0666);
+ if (esoapidsk == -1) {
+ /* Print an error message and disable EsoAPI */
+ fprintf (stderr, "%s: Could not open esoapi.dsk, turning off
EsoAPI support\n",
+ PROGRAM_NAME);
+ esoapi = OFF;
+ }
}
/* Try to open the input file */
@@ -93,7 +110,11 @@ Copyright (C) 2005-2007 KiyuKo\n", PROGRAM_NAME,
VERSION);
/* code_dump (code, 0); */
/* Start executing the code */
- eval (code, on_eof);
+ eval (code, on_eof, esoapidsk, -1);
+
+ if (esoapidsk != -1) {
+ close (esoapidsk);
+ }
}
}
/* Exit with success */
*** esoapi-hello.bf
+>.++++++++.[
++++++[>++>+++++>++++++++>+++++++>+<<<<<-]>>-.>+++.----.<----.+++++++++++++++.-------.<++++.>>+++.>+++.<-.++++.>++++.<---.>----.-.>-.---.>>]
<[
EsoAPI comapatible
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<<+++++++++++++++.>.+++.------.--------.>+.>.<<<<<
-]
--- End Message ---
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