コード例 #1
0
ファイル: calc.c プロジェクト: PankajKataria/radare2
R_API ut64 r_num_calc(RNum *num, const char *str, const char **err) {
	RNumCalcValue n;
	RNumCalc *nc, nc_local;
	if (!str || !*str) {
		return 0LL;
	}
	if (num) {
		nc = &num->nc;
		num->dbz = 0;
	} else {
		nc = &nc_local;
	}
	/* init */
	nc->curr_tok = RNCPRINT;
	nc->number_value.d = 0.0;
	nc->number_value.n = 0LL;
	nc->errors = 0;
	nc->oc = 0;
	nc->calc_err = NULL;
	nc->calc_i = 0;
	nc->calc_len = 0;
	nc->calc_buf = NULL;

	load_token (num, nc, str);
	get_token (num, nc);
	n = expr (num, nc, 0);
	if (err) {
		*err = nc->calc_err;
	}
	if (num) {
		num->fvalue = n.d;
	}
	return n.n;
}
コード例 #2
0
ファイル: calc.c プロジェクト: commiebstrd/radare2
R_API ut64 r_num_calc (RNum *num, const char *str, const char **err) {
	RNumCalcValue n;
	RNumCalc *nc, nc_local;
	if (!str || !*str)
		return 0LL;
	if (num) {
		nc = &num->nc;
		num->dbz = 0;
	} else {
		nc = &nc_local;
	}

	/* init */
	nc->curr_tok = RNCPRINT;
	nc->number_value.d = 0.0;
	nc->number_value.n = 0LL;
	nc->errors = 0;
	nc->oc = 0;
	nc->calc_err = NULL;
	nc->calc_i = 0;
	nc->calc_len = 0;
	nc->calc_buf = NULL;

	load_token (num, nc, str);
	get_token (num, nc);
	n = expr (num, nc, 0);
	if (err) *err = nc->calc_err;
	//if (nc->curr_tok == RNCEND) return 0LL; // XXX: Error
	//if (nc->curr_tok == RNCPRINT) //return 0LL; // XXX: the f**k
	//	n = expr (num, nc, 0);
	if (n.d != ((double)(ut64)n.d)) {
		if (num) num->fvalue = n.d;
	} else if (num) num->fvalue = (double)n.n;
	return n.n;
}
コード例 #3
0
ファイル: calc.c プロジェクト: ericfode/radare2
R_API ut64 r_num_calc (RNum *num, const char *str, const char **err) {
	NumValue n;
	if (!*str)
		return 0LL;
	calc_num = num;
	load_token (str);
	get_token ();
	n = expr (0);
	if (err) *err = calc_err;
	//if (curr_tok == END) return 0LL; // XXX: Error
	//if (curr_tok == PRINT) //return 0LL; // XXX: the f**k
	//	n = expr (0);
	if (n.d != ((double)(ut64)n.d)) {
		if (num) num->fvalue = n.d;
	} else if (num) num->fvalue = (double)n.n;
	return n.n;
}
コード例 #4
0
ファイル: urdutag.c プロジェクト: akssri/csil-emille
void urdutag_file(const char *input_filename, const char *output_filename,
				  const char *lexicon_filename)
{
	FILE *source;
	FILE *dest;

	entry *lexicon;

	token *word;


	/* open the source file and check for (then discard) directionality character */
	if (!(source = fopen(input_filename, "rb")))
	{
		puts("Error opening original file!");
		fcloseall();
		return;
	}
	if (!( ucheckdir(source) ))
	{
		fputs("Specified source file not recognised as Unicode!", stderr);
		fcloseall();
		return;
	}

	/* open file to write, insert directionality character */
	if( !(dest = fopen(output_filename, "wb")) )
	{
		puts("Error opening processed file!");
		fcloseall();
		return;
	}
	if ( fputuc( RIGHTWAY , dest) == UERR )
	{
		puts("Error writing to processed file!");
		fcloseall();
		return;
	}


	if (! ( lexicon = load_lexicon(lexicon_filename) ) )
		return;

	while (1)
	{
		/* read a line */
		if ( ! (word = load_token(source)) )
			break;


		/* urdutag that token IF it has no tags already */

		if (word->tag[0][0] == 0x0000)
			urdutag(lexicon, word);


		/* if split-signal tag returned , perform the special actions */
		if ( word->tag[0][0] == 0x0053 && word->tag[0][1] == 0x0050 )
			word = do_the_splits(word, lexicon, dest);



		/* write the line to file */
		if (write_token(word, dest))
			break;

		free(word);
	}

	/* check "word". If it is still alloc'd, then the loop broke prematurely */
	/* and "word" will need freeing. */
	if (word)
		free(word);

	/* free the lexicon */
	free_lexicon(lexicon);


	/* close read and write files */
	if (fclose(source) < 0)
	{
		puts("Error closing original file!");
		fcloseall();
		return;
	}
	if (fclose(dest) < 0)
	{
		puts("Error closing processed file!");
		fcloseall();
		return;
	}
}
コード例 #5
0
ファイル: scanner.c プロジェクト: mcyprian/IFJ15
index_t get_token(FILE *fin, TDynamic_buffer *buffer, TDynamic_structure_buffer *struct_buffer) {
	args_assert(buffer != NULL && struct_buffer != NULL, INTERNAL_ERROR);
	debug_print("%s\n", "GET_TOKEN");

	char hx[3] = {0, 0, '\0'};
	char x;
	int c;
	int previous = 0;
	int state = START;
	bool read = true;
	bool signed_scientific = false;
	bool wrong_identifier = false;
	bool is_number_after_sign = false;
	bool is_number_after_dot = false;
	bool is_end = true;
	index_t index = 0;
	TToken *token;

	new_item(struct_buffer, index, token);

	while (1) {
		if (read)
		{	
			c = fgetc(fin);

			if (feof(fin) && is_end)
			{
				if (state == BLOCK_COMMENT)	{
					token->token_index = save_token(buffer);
					token->token_type = ERRORT;
				} else {
					token->token_index = save_token(buffer);
					token->token_type = EOFT;
				}
				return index;
			}
		}
		else
		{
			c = previous;
			read = true;
		}

		switch (state) 
		{
			case START:
				if ((c > 64 && c < 91) || (c > 96 && c < 123) || c == '_') // A-Z || a-z || _
				{
					state = IDENTIFIER;
					catch_token_internal_error(add_char(buffer, c), INTERNAL_ERROR, token, index);
					
				}
				else if (c > 47 && c < 58) // 0-9
				{
					state = L_INT;
					catch_token_internal_error(add_char(buffer, c), INTERNAL_ERROR, token, index);
				}
				else  
				{
					switch (c)
					{
						case '+':
							token->token_index = save_token(buffer);
							token->token_type = O_PLUS;
							return index;
							break;

						case '-':
							token->token_index = save_token(buffer);
							token->token_type = O_MINUS;
							return index;
							break;

						case '/':
							state = COMMENT;
							is_end = false;
							break;

						case '*':
							token->token_index = save_token(buffer);
							token->token_type = O_MUL;
							return index;
							break;

						case ';':
							token->token_index = save_token(buffer);
							token->token_type = SEMICOLON;
							return index;
							break;

						case ',':
							token->token_index = save_token(buffer);
							token->token_type = COMMA;
							return index;
							break;

						case '(':
							token->token_index = save_token(buffer);
							token->token_type = OPENING_BRACKET;
							return index;
							break;

						case ')':
							token->token_index = save_token(buffer);
							token->token_type = CLOSING_BRACKET;
							return index;
							break;

						case '{':
							token->token_index = save_token(buffer);
							token->token_type = OPENING_CURLY_BRACKET;
							return index;
							break;

						case '}':
							token->token_index = save_token(buffer);
							token->token_type = CLOSING_CURLY_BRACKET;
							return index;
							break;

						case '=':
							state = O_EQUALS;
							is_end = false;
							break;

						case '<':
							state = O_L;
							is_end = false;
							break;

						case '>':
							state = O_G;
							is_end = false;
							break;

						case '!':
							state = UO_EXCLAMATION;
							is_end = false;
							break;
						
						case '"':
							state = L_STRING;
							is_end = false;
							break;

						default:
							if (!isspace(c))
							{
								catch_token_internal_error(add_char(buffer, c), INTERNAL_ERROR, token, index);
								token->token_index = save_token(buffer);
								token->token_type = ERRORT;
								return index;
							}

							break;
					} // switch(c)
				} // else
				break;

			case COMMENT:
				debug_print("%s","COMMENT COMMENT COMMENT COMMENT COMMENT\n");
				if (c == '/')  // //
				{
					state = LINE_COMMENT;
					is_end = false;
				}
				else if (c == '*')  // /*
				{
					state = BLOCK_COMMENT;
					is_end = false;
				}
				else // /
				{
					ungetc(c, fin);
					state = START;
					token->token_index = save_token(buffer);
					token->token_type = O_DIV;
					return index;
				}

				break;

			case LINE_COMMENT:
				is_end = true;
				if (c == '\n')
				{
					state = START;
				}

				break;

			case BLOCK_COMMENT:
				is_end = true;
				if (c == '*')
				{
					state = BLOCK_COMMENT_END;
				}

				break;

			case BLOCK_COMMENT_END:
				if (c == '/')
				{
					state = START;
					is_end = true;
				}
				else
					state = BLOCK_COMMENT;
				
				break;

			case O_EQUALS:
				if (c == '=') // ==
				{
					token->token_index = save_token(buffer);
					token->token_type = O_EQUALS;
					state = START;
					return index;
					break;
				}
				else // =
				{
					ungetc(c, fin);
					state = START;
					token->token_index = save_token(buffer);
					token->token_type = O_ASSIGN;
					return index;
					break;
				}

			case O_G:
				if (c == '=') // >=
				{
					token->token_index = save_token(buffer);
					token->token_type = O_GE;
					state = START;
					return index;
					break;
				}
				else if (c == '>') // >>
				{
					token->token_index = save_token(buffer);
					token->token_type = O_RIGHT_ARROW;
					state = START;
					return index;
					break;
				}
				else // >
				{
					ungetc(c, fin);
					token->token_index = save_token(buffer);
					token->token_type = O_G;
					state = START;
					return index;
					break;
				}

			case O_L:
				if (c == '=') // <=
				{
					token->token_index = save_token(buffer);
					token->token_type = O_LE;
					state = START;
					return index;
					break;
				}
				else if (c == '<') // <<
				{
					token->token_index = save_token(buffer);
					token->token_type = O_LEFT_ARROW;
					state = START;
					return index;
					break;
				}
				else // <
				{
					ungetc(c, fin);
					token->token_index = save_token(buffer);
					token->token_type = O_L;
					state = START;
					return index;
					break;
				}

			case UO_EXCLAMATION:
				if (c == '=') // !=
				{
					token->token_index = save_token(buffer);
					token->token_type = O_NE;
					state = START;
					return index;
					break;
				}
				else // ! je zatial errort
				{
					ungetc(c, fin);
					token->token_index = save_token(buffer);
					token->token_type = ERRORT; // token->token_type = UO_EXCLAMATION;
					state = START;
					return index;
					break;
				}

			case IDENTIFIER:

				if ((c > 64 && c < 91) || (c > 96 && c < 123) || (c > 47 && c < 58) || c == '_') { // (A-Z, a-z, 0-9, _)
					catch_token_internal_error(add_char(buffer, c), INTERNAL_ERROR, token, index);
					is_end = false;
				} 
				else if (SEPARATOR)
				{
					token->token_index = save_token(buffer);
					if (!wrong_identifier)
						token->token_type = reservedWord(load_token(buffer, token->token_index));
					else
						token->token_type = ERRORT;
					wrong_identifier = false;
					is_number_after_dot = false;
					is_number_after_sign = false;
					ungetc(c,fin);
					state = START;
					return index;
				}
				else
				{
					catch_token_internal_error(add_char(buffer, c), INTERNAL_ERROR, token, index);
					wrong_identifier = true;
					is_end = false;
				}

				break;

			case L_INT:
				if (c > 47 && c < 58) // 0-9
				{
					catch_token_internal_error(add_char(buffer, c), INTERNAL_ERROR, token, index);
					is_end = false;
				}
				else if (c == 46) // c == "."
				{
					catch_token_internal_error(add_char(buffer, c), INTERNAL_ERROR, token, index);
					state = L_DOUBLE;
					is_end = false;
				}
				else if (SEPARATOR)
				{
					token->token_index = save_token(buffer);
					token->token_type = L_INT;
					ungetc(c,fin);
					state = START;
					return index;
				}
				else if (c == 'e' || c == 'E')
				{
					catch_token_internal_error(add_char(buffer, c), INTERNAL_ERROR, token, index);
					state = SCIENTIFIC;
					is_end = false;
				}
				else
				{
					catch_token_internal_error(add_char(buffer, c), INTERNAL_ERROR, token, index);
					wrong_identifier = true;
					state = IDENTIFIER;
					is_end = false;
				}

				break;

			case L_DOUBLE:
				if (c > 47 && c < 58) // 0-9
				{
					catch_token_internal_error(add_char(buffer, c), INTERNAL_ERROR, token, index);
					is_number_after_dot = true;
					is_end = false;
				}
				else if ((SEPARATOR) && is_number_after_dot)
				{
					token->token_type = L_DOUBLE;
					token->token_index = save_token(buffer);
					ungetc(c,fin);
					state = START;
					return index;
				}
				else if ((SEPARATOR) && !is_number_after_dot)
				{
					token->token_type = ERRORT;
					token->token_index = save_token(buffer);
					ungetc(c,fin);
					state = START;
					return index;
				}
				else if ((c == 'e' || c == 'E') && is_number_after_dot)
				{
					catch_token_internal_error(add_char(buffer, c), INTERNAL_ERROR, token, index);
					state = SCIENTIFIC;
					is_end = false;
				}
				else
				{
					catch_token_internal_error(add_char(buffer, c), INTERNAL_ERROR, token, index);
					wrong_identifier = true;
					state = IDENTIFIER;
					is_end = false;
				}

				break;

			case SCIENTIFIC:
				if ((c == '+' || c == '-') && !signed_scientific && !is_number_after_sign)
				{
					signed_scientific = true;
					catch_token_internal_error(add_char(buffer, c), INTERNAL_ERROR, token, index);
					state = SCIENTIFIC;
					is_end = false;
				}
				else if (c > 47 && c < 58)
				{
					catch_token_internal_error(add_char(buffer, c), INTERNAL_ERROR, token, index);
					is_number_after_sign = true;
					is_end = false;
				}
				else if ((SEPARATOR) && is_number_after_sign)
				{
					token->token_type = L_DOUBLE;
					token->token_index = save_token(buffer);
					ungetc(c,fin);
					state = START;
					return index;
				}
				else
				{
				//	catch_token_internal_error(add_char(buffer, c), INTERNAL_ERROR, token, index);
					wrong_identifier = true;
					state = IDENTIFIER;
					is_end = false;
					ungetc(c, fin);
				}
				break;

			case L_STRING:
				if (c == '"')
				{
					token->token_type = L_STRING;
					token->token_index = save_token(buffer);
					state = START;
					return index;
				}
				else if (c == '\\')
				{
					// catch_token_internal_error(add_char(buffer, c), INTERNAL_ERROR, token, index);
					state = L_STRING_BACKSLASH;
					is_end = false;
				}
				else
				{
					catch_token_internal_error(add_char(buffer, c), INTERNAL_ERROR, token, index);
					is_end = false;
				}
				
				break;

			case L_STRING_BACKSLASH:
				switch(c) {
					case 'n':
						catch_token_internal_error(add_char(buffer, '\n'), INTERNAL_ERROR, token, index);
						state = L_STRING;
						is_end = false;
						break;
					case 't':
						catch_token_internal_error(add_char(buffer, '\t'), INTERNAL_ERROR, token, index);
						state = L_STRING;
						is_end = false;
						break;
					case '"':
						catch_token_internal_error(add_char(buffer, '"'), INTERNAL_ERROR, token, index);
						state = L_STRING;
						is_end = false;
						break;
					case '\\':
						catch_token_internal_error(add_char(buffer, '\\'), INTERNAL_ERROR, token, index);
						state = L_STRING;
						is_end = false;
						break;
					case 'x':
						
						hx[0] = fgetc(fin);
						hx[1] = fgetc(fin);
						x = (char)(int)strtol(hx, NULL, 16);

						if (strcmp(&x, ""))  {
							catch_token_internal_error(add_char(buffer, x), INTERNAL_ERROR, token, index);
							state = L_STRING;
							break;
						}
					default:
						token->token_type = ERRORT;
						token->token_index = save_token(buffer);
						ungetc(c,fin);
						state = START;
						return index;

				}


				// catch_token_internal_error(add_char(buffer, c), INTERNAL_ERROR, token, index);
				state = L_STRING;
				break;

		} // switch(state)
	} // while(1)
	return 0;
}
コード例 #6
0
ファイル: precedence_analysis.c プロジェクト: mcyprian/IFJ15
int short_reduction(Resources *res, TStack *stack) {
    args_assert(res != NULL && stack != NULL, INTERNAL_ERROR);

    TToken *token_to_reduce;
    int err;
    debug_print("%s\n", "ONE TOKEN REDUCED");

    catch_internal_error(
        dereference_structure(&res->struct_buff, stack->top, (void **)&token_to_reduce),
        INTERNAL_ERROR,
        "Failed to dereference structure buffer."
    );

    int type = token_to_reduce->token_type;

    if (type == IDENTIFIER) {
         debug_print("%s\n", "TOKEN ID CHECKING TYPE");

         err = is_var_declared(res, token_to_reduce->token_index);
         catch_internal_error(err, INTERNAL_ERROR, "Failed to check if var was declared");
         catch_undefined_error(err, SEMANTIC_ERROR, "Failed to check if var was declared", 1);
         
         
         type = get_var_type(res, token_to_reduce->token_index);
         catch_internal_error(type, INTERNAL_ERROR, "Failed to get variable type");
         catch_undefined_error(type, SEMANTIC_ERROR, "Failed to get variable type", 1);

         index_t offset;
         catch_undefined_error(load_var_index(res, token_to_reduce->token_index, &offset),
                               SEMANTIC_ERROR,
                               "Failed to get var offset", 1
         );
         if (type == L_INT) 
             catch_internal_error(new_instruction_mem_mem(&res->instruction_buffer, 0lu, offset, 0lu, PUSH_INT_MEM),
                                  INTERNAL_ERROR, "Failed to generate new instruction");
         else if (type == L_DOUBLE)
             catch_internal_error(new_instruction_mem_mem(&res->instruction_buffer, 0lu, offset, 0lu, PUSH_DBL_MEM),
                                  INTERNAL_ERROR, "Failed to generate new instruction");
         else 
             catch_internal_error(new_instruction_mem_mem(&res->instruction_buffer, 0lu, offset, 0lu, PUSH_INDEX_MEM),
                                  INTERNAL_ERROR, "Failed to generate new instruction");

    } else {      // LITERAL
        if (type == L_INT) {
            int value;
            if ((value = to_int(load_token(&res->string_buff, token_to_reduce->token_index))) < 0)
                return LEXICAL_ERROR;
                catch_internal_error(new_instruction_int_int(&res->instruction_buffer, 0lu, value, 0, PUSH_INT_CONST),
                                     INTERNAL_ERROR, "Failed to generate new ");
        } else 
        if (type == L_DOUBLE) {
            double value;
            if ((value = to_double(load_token(&res->string_buff, token_to_reduce->token_index))) < 0.0)
                return LEXICAL_ERROR;
                catch_internal_error(new_instruction_dbl_dbl(&res->instruction_buffer, 0lu, value, 0.0, PUSH_DBL_CONST),
                                     INTERNAL_ERROR, "Failed to generate new instruction");
        } else
        if (type == L_STRING) {
            catch_internal_error(new_instruction_mem_mem(&res->instruction_buffer, 0lu, token_to_reduce->token_index, 0lu, PUSH_INDEX_CONST),
                                 INTERNAL_ERROR, "Failed to generate new instruction");
        }
    }

    debug_print("%s: %d\n", "ORIGINAL_TYPE:", type);

    index_t top_index = stack->top;
    pop(&res->struct_buff, stack);
    pop(&res->struct_buff, stack);          // Remove SHIFT from stack
    push(&res->struct_buff, stack, top_index);
    return overwrite_top(&res->struct_buff, stack, RVALUE, type);
}