чување d6a09ed7d4b2aa8ae1034b3798555acf7b59b720
Аутор: Страхиња Радић <sr@strahinja.org>
Датум: Sun, 18 Jan 2026 23:57:44 +0100
Initial import
Diffstat:
измењених датотека: 15, додавања: 1190(+), брисања: 0(-)
diff --git a/LICENSE b/LICENSE
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+ GNU GENERAL PUBLIC LICENSE
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+DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
+PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
+EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGES.
+
+ 17. Interpretation of Sections 15 and 16.
+
+ If the disclaimer of warranty and limitation of liability provided
+above cannot be given local legal effect according to their terms,
+reviewing courts shall apply local law that most closely approximates
+an absolute waiver of all civil liability in connection with the
+Program, unless a warranty or assumption of liability accompanies a
+copy of the Program in return for a fee.
+
+ END OF TERMS AND CONDITIONS
+
+ How to Apply These Terms to Your New Programs
+
+ If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+ To do so, attach the following notices to the program. It is safest
+to attach them to the start of each source file to most effectively
+state the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+ <one line to give the program's name and a brief idea of what it does.>
+ Copyright (C) <year> <name of author>
+
+ 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 3 of the License, 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. If not, see <https://www.gnu.org/licenses/>.
+
+Also add information on how to contact you by electronic and paper mail.
+
+ If the program does terminal interaction, make it output a short
+notice like this when it starts in an interactive mode:
+
+ <program> Copyright (C) <year> <name of author>
+ This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+ This is free software, and you are welcome to redistribute it
+ under certain conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License. Of course, your program's commands
+might be different; for a GUI interface, you would use an "about box".
+
+ You should also get your employer (if you work as a programmer) or school,
+if any, to sign a "copyright disclaimer" for the program, if necessary.
+For more information on this, and how to apply and follow the GNU GPL, see
+<https://www.gnu.org/licenses/>.
+
+ The GNU General Public License does not permit incorporating your program
+into proprietary programs. If your program is a subroutine library, you
+may consider it more useful to permit linking proprietary applications with
+the library. If this is what you want to do, use the GNU Lesser General
+Public License instead of this License. But first, please read
+<https://www.gnu.org/licenses/why-not-lgpl.html>.
diff --git a/Makefile b/Makefile
@@ -0,0 +1,29 @@
+.POSIX:
+
+include config.mk
+
+.SUFFIXES:
+.SUFFIXES: .y .l .c .o
+
+all: bool
+
+lex.yy.c: bool.l
+ $(FLEX) bool.l
+
+# Have to use explicit rules to prevent deletion of y.tab.c, so the program can
+# be properly debugged
+y.tab.c: bool.y
+ $(YACC) $(YACCFLAGS) bool.y
+
+bool.o: y.tab.c
+ $(CC) $(CFLAGS) $(CPPFLAGS) -o $@ -c y.tab.c
+
+lex.yy.o: lex.yy.c
+
+bool: bool.o lex.yy.o
+ $(CC) $(CFLAGS) $(CPPFLAGS) $(LDFLAGS) -o $@ bool.o lex.yy.o $(LIBS)
+
+clean:
+ rm -f bool y.tab.c lex.yy.c *.o *~
+
+.PHONY: all clean
diff --git a/bool.h b/bool.h
@@ -0,0 +1,45 @@
+enum NodeType {
+ NT_IDENT,
+ NT_BRACKETS,
+ NT_UNARY,
+ NT_BINARY
+};
+
+enum Operator {
+ OP_NONE,
+ OP_OR,
+ OP_AND,
+ OP_XOR,
+ OP_NOT
+};
+
+extern const char* node_type_ids[];
+extern const char* operator_images[];
+
+struct expr_ident {
+ int id;
+};
+
+struct expr_brackets {
+ struct expr_node* arg;
+};
+
+struct expr_unary {
+ enum Operator operator;
+ struct expr_node* arg;
+};
+
+struct expr_binary {
+ enum Operator operator;
+ struct expr_node* args[2];
+};
+
+struct expr_node {
+ enum NodeType type;
+ union {
+ struct expr_ident* ident;
+ struct expr_brackets* brackets;
+ struct expr_unary* unary;
+ struct expr_binary* binary;
+ } expr;
+};
diff --git a/bool.l b/bool.l
@@ -0,0 +1,76 @@
+digit [0-9]
+letter [A-Za-z]
+ident {letter}({letter}|{digit})*
+wspace [ \t]+
+
+%{
+
+#include <stdarg.h>
+#include "y.tab.h"
+
+extern int colno, lineno;
+extern int add_id(const char* id);
+extern int get_index(const char* id);
+extern void yydbg(const char* format, ...);
+extern void yyerror(const char* format, ...);
+%}
+
+%%
+
+{ident} { colno += yyleng;
+ yydbg("Identifier: {%s}", yytext);
+ if((yylval.ident_id = get_index(yytext)) < 0)
+ {
+ yylval.ident_id = add_id(yytext);
+ yydbg("Added, ID = %d", yylval.ident_id);
+ }
+ else
+ yydbg("Present, ID = %d", yylval.ident_id);
+ return IDENT; }
+\( { colno++;
+ yydbg("Open brace");
+ return *yytext;
+ }
+\) { colno++;
+ yydbg("Closing brace");
+ return *yytext;
+ }
+\| { colno++;
+ yydbg("OR operator");
+ return *yytext;
+ }
+& { colno++;
+ yydbg("AND operator");
+ return *yytext;
+ }
+~ { colno++;
+ yydbg("NOT operator");
+ return *yytext;
+ }
+\^ { colno++;
+ yydbg("XOR operator");
+ return *yytext;
+ }
+{wspace}
+ { colno++;
+ yydbg("Whitespace");
+ }
+\n { colno = 1;
+ lineno++;
+ yydbg("Newline");
+ }
+#.*$ { colno = 1;
+ yydbg("Comment: {%s}", yytext);
+ }
+. { colno++;
+ yyerror("Unknown character: %s", yytext);
+ yyterminate();
+ }
+
+%%
+
+int
+yywrap(void)
+{
+ return 1;
+}
diff --git a/bool.y b/bool.y
@@ -0,0 +1,330 @@
+%{
+#include "bool.h"
+%}
+
+%union {
+ int ident_id;
+ struct expr_node* node_ptr;
+}
+
+%left '|'
+%left '^'
+%left '&'
+%nonassoc '~'
+
+%token <ident_id> IDENT
+%type <node_ptr> expr
+
+%{
+#include <errno.h>
+#include <stdarg.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include "version.h"
+
+#define IDS_DELTA 100
+#define COPYRIGHT \
+ (" This program is licensed under the terms of GNU GPL v3" \
+ " or (at your option)\n" \
+ " any later version. Copyright (C) 2026 Strahinya Radich.\n" \
+ " See the file LICENSE for exact copyright and license " \
+ "details.")
+#define YYDEBUG 1
+
+static char** ids = NULL;
+static int ids_size = 0;
+static int num_ids = 0;
+static int debug = 0;
+
+extern FILE* yyin;
+int colno = 1, lineno = 1;
+
+char* get_id(const int index);
+int get_index(const char* id);
+void print_node(const int level, const int debug_only, struct expr_node* node);
+void yyerror(const char* format, ...);
+
+extern int yylex(void);
+
+#define NTN(id) [id] = #id
+
+const char* node_type_ids[] = {
+ NTN(NT_IDENT),
+ NTN(NT_BRACKETS),
+ NTN(NT_UNARY),
+ NTN(NT_BINARY)
+};
+
+const char* operator_images[] = {
+ [OP_NONE] = "",
+ [OP_OR] = "OR",
+ [OP_AND] = "AND",
+ [OP_XOR] = "XOR",
+ [OP_NOT] = "NOT"
+};
+
+static struct expr_node* root = NULL;
+
+static void
+usage(void)
+{
+ puts("Usage: " PROGNAME " [-dhVv] [file]");
+}
+
+static void
+version(const int full)
+{
+ printf("%s %s, committed on %s\n", PROGNAME, VERSION, DATE);
+ if (full)
+ puts(COPYRIGHT);
+}
+
+int
+add_id(const char* id)
+{
+ char** temp = NULL;
+ if (num_ids >= ids_size)
+ {
+ temp = realloc(ids, (ids_size + IDS_DELTA) * sizeof(char*));
+ if (!temp)
+ {
+ perror("realloc");
+ exit(errno);
+ }
+ ids_size += IDS_DELTA;
+ ids = temp;
+ }
+ ids[num_ids++] = strdup(id);
+ return num_ids-1;
+}
+
+struct expr_node*
+new_expr(const enum NodeType node_type, const enum Operator operator,
+ const int nargs, ...)
+{
+ va_list ap;
+ struct expr_node* np = NULL;
+
+ va_start(ap, nargs);
+ if (!(np = malloc(sizeof(struct expr_node))))
+ goto new_expr_malloc_error;
+ np->type = node_type;
+ switch (node_type)
+ {
+ case NT_BRACKETS:
+ if (!(np->expr.brackets = malloc(sizeof(struct expr_brackets))))
+ goto new_expr_malloc_error;
+ if (!(np->expr.brackets->arg = va_arg(ap, struct expr_node*)))
+ goto new_expr_va_arg_error;
+ break;
+ case NT_UNARY:
+ if (!(np->expr.unary = malloc(sizeof(struct expr_unary))))
+ goto new_expr_malloc_error;
+ if (!(np->expr.unary->arg = va_arg(ap, struct expr_node*)))
+ goto new_expr_va_arg_error;
+ np->expr.unary->operator = operator;
+ break;
+ case NT_BINARY:
+ if (!(np->expr.binary = malloc(sizeof(struct expr_binary))))
+ goto new_expr_malloc_error;
+ if (!(np->expr.binary->args[0] = va_arg(ap, struct expr_node*)))
+ goto new_expr_va_arg_error;
+ if (!(np->expr.binary->args[1] = va_arg(ap, struct expr_node*)))
+ goto new_expr_va_arg_error;
+ np->expr.binary->operator = operator;
+ break;
+ case NT_IDENT:
+ default:
+ if (!(np->expr.ident = malloc(sizeof(struct expr_ident))))
+ goto new_expr_malloc_error;
+ np->expr.ident->id = va_arg(ap, int);
+ }
+ va_end(ap);
+ return np;
+
+new_expr_malloc_error:
+ perror("new_expr");
+ exit(1);
+ return NULL;
+
+new_expr_va_arg_error:
+ yyerror("va_arg is NULL");
+ exit(1);
+ return NULL;
+}
+
+char*
+get_id(const int index)
+{
+ if (index >= 0 && index < num_ids)
+ return ids[index];
+ return "N/A";
+}
+
+int
+get_index(const char* id)
+{
+ int idx = 0;
+ int found = 0;
+ while (!found && idx < num_ids)
+ {
+ if (!strcmp(ids[idx], id))
+ {
+ found = 1;
+ continue;
+ }
+ idx++;
+ }
+ return found ? idx : -1;
+}
+
+void
+print_node(const int level, const int debug_only, struct expr_node* node)
+{
+ if ((debug_only && !debug) || !node)
+ return;
+ for (int i = 0; i < level; i++)
+ fprintf(debug_only && debug ? stderr : stdout, "\t");
+ switch (node->type)
+ {
+ case NT_BRACKETS:
+ //printf("( ");
+ fprintf(debug_only && debug ? stderr : stdout, "()\n");
+ print_node(level+1, debug_only, node->expr.brackets->arg);
+ //printf(" )");
+ break;
+ case NT_UNARY:
+ //printf("%s { ", operator_images[node->expr.unary->operator]);
+ fprintf(debug_only && debug ? stderr : stdout,
+ "%s\n", operator_images[node->expr.unary->operator]);
+ print_node(level+1, debug_only, node->expr.unary->arg);
+ //printf(" }");
+ break;
+ case NT_BINARY:
+ //printf("{ ");
+ fprintf(debug_only && debug ? stderr : stdout,
+ "%s\n", operator_images[node->expr.binary->operator]);
+ print_node(level+1, debug_only, node->expr.binary->args[0]);
+ //printf(" %s ", operator_images[node->expr.binary->operator]);
+ print_node(level+1, debug_only, node->expr.binary->args[1]);
+ //printf(" }");
+ break;
+ case NT_IDENT:
+ default:
+ fprintf(debug_only && debug ? stderr : stdout,
+ "[ID(%d) = \"%s\"]\n",
+ node->expr.ident->id,
+ get_id(node->expr.ident->id));
+ }
+}
+
+void
+yydbg(const char* format, ...)
+{
+ va_list ap;
+ char buf[1024];
+ if (!debug)
+ return;
+ va_start(ap, format);
+ vsnprintf(buf, sizeof buf, format, ap);
+ fprintf(stderr, "DEBUG: %s\n", buf);
+ va_end(ap);
+}
+
+void
+yyerror(const char* format, ...)
+{
+ va_list ap;
+ char buf[1024];
+ va_start(ap, format);
+ vsnprintf(buf, sizeof buf, format, ap);
+ fprintf(stderr, "%s:%d:%d: %s\n", PROGNAME, lineno, colno, buf);
+ va_end(ap);
+}
+
+%}
+
+%%
+
+expr: IDENT { $$ = new_expr(NT_IDENT, OP_NONE, 1, $1);
+ print_node(0, 1, $$);
+ // replace the root with $$
+ root = $$;
+ }
+ | expr '|' expr { $$ = new_expr(NT_BINARY, OP_OR, 2, $1, $3);
+ print_node(0, 1, $$);
+ // replace the root with $$ == OR($1, $3)...
+ root = $$;
+ }
+ | expr '&' expr { $$ = new_expr(NT_BINARY, OP_AND, 2, $1, $3);
+ print_node(0, 1, $$);
+ root = $$;
+ }
+ | expr '^' expr { $$ = new_expr(NT_BINARY, OP_XOR, 2, $1, $3);
+ print_node(0, 1, $$);
+ root = $$;
+ }
+ | '~' expr { $$ = new_expr(NT_UNARY, OP_NOT, 1, $2);
+ print_node(0, 1, $$);
+ root = $$;
+ }
+ | '(' expr ')' { $$ = new_expr(NT_BRACKETS, OP_NONE, 1, $2);
+ print_node(0, 1, $$);
+ root = $$;
+ }
+ ;
+
+%%
+
+int
+main(int argc, char** argv)
+{
+ int ch;
+
+ ids_size = IDS_DELTA;
+ num_ids = 0;
+ ids = malloc(ids_size * sizeof(char*));
+ ids[0] = NULL;
+
+ //yydebug = 1;
+ if ((ch = getopt(argc, argv, ":dhVv")) != -1)
+ {
+ switch (ch)
+ {
+ case 'd':
+ debug = 1;
+ break;
+ case 'h':
+ usage();
+ exit(0);
+ case 'V':
+ version(1);
+ exit(0);
+ case 'v':
+ version(0);
+ exit(0);
+ case '?':
+ yyerror("Invalid parameter: -%c", optopt);
+ exit(1);
+ default:;
+ }
+ }
+
+ if (argc > optind && (argv[optind][0] != '-' || argv[optind][1] != 0))
+ {
+ if (!(yyin = fopen(argv[optind], "r")))
+ {
+ perror("fopen");
+ exit(errno);
+ }
+ }
+ //yylex();
+ yyparse();
+
+ if (root)
+ print_node(0, 0, root);
+ if (yyin && yyin != stdin)
+ fclose(yyin);
+}
diff --git a/config.mk b/config.mk
@@ -0,0 +1,9 @@
+CFLAGS = -Os -Wextra -Wall -pedantic -std=c99
+#CFLAGS = -O0 -ggdb -Wextra -Wall -pedantic -std=c99
+CPPFLAGS = -D_DEFAULT_SOURCE -D_POSIX_C_SOURCE=200809L \
+ -D_XOPEN_SOURCE=700 -DNDEBUG
+#CC = clang
+FLEX = flex
+LIBS = #-lfl
+YACC = yacc
+YACCFLAGS = -d
diff --git a/test/err.b b/test/err.b
@@ -0,0 +1,2 @@
+#!/bin/bool
+ (a & ~((b & ~c)b | (c & ~b)))
diff --git a/test/or.b b/test/or.b
@@ -0,0 +1,2 @@
+#!/bin/bool
+a|b
diff --git a/test/proba.b b/test/proba.b
@@ -0,0 +1,5 @@
+#!/bin/bool
+
+
+ ((((a|b)|c)|d)|e)
+
diff --git a/test/test.b b/test/test.b
@@ -0,0 +1,2 @@
+# Comment
+((a|b)|(~a&~b))
diff --git a/test/test1.b b/test/test1.b
@@ -0,0 +1,4 @@
+#!/bin/bool
+# This is bool v1.0
+
+ (a)|(~a)
diff --git a/test/xor.b b/test/xor.b
@@ -0,0 +1,2 @@
+#!/bin/bool
+a^b
diff --git a/test/xor.subst.b b/test/xor.subst.b
@@ -0,0 +1,3 @@
+#!/bin/bool
+# proba.b - proba interpretatora bool
+ ((a&~b)|(~a&b))
diff --git a/test/zad1.1.b b/test/zad1.1.b
@@ -0,0 +1,3 @@
+#!/bin/bool
+ (((a & ~b) | (b & ~a)) & ~c)
+ | (c & ~((a & ~b) | (b & ~a)))
+\ No newline at end of file
diff --git a/test/zad1.b b/test/zad1.b
@@ -0,0 +1,3 @@
+#!/bin/bool
+ (a & ~((b & ~c) | (c & ~b)))
+ | (((b & ~c) | (c & ~b)) & ~a)
