Merge pull request #27 from Ruun/Scanner

add scanners files to github

Author: Ruun

Diff for: .DS_Store

@@ -47,8 +47,7 @@
               "RelativeToolTip": "code\\Reader.c",
               "ViewState": "AQIAADgBAAAAAAAAAAAswE4BAAADAAAA",
               "Icon": "ae27a6b0-e345-4288-96df-5eaf394ee369.000423|",
-              "WhenOpened": "2024-06-13T16:55:18.632Z",
-              "EditorCaption": ""
+              "WhenOpened": "2024-06-13T16:55:18.632Z"
             },
             {
               "$type": "Document",

Diff for: .vs/.DS_Store

@@ -0,0 +1,272 @@
+/*
+************************************************************
+* COMPILERS COURSE - Algonquin College
+* Code version: Summer, 2024
+* Author: TO_DO
+* Professors: Paulo Sousa
+************************************************************
+#
+# ECHO "=---------------------------------------="
+# ECHO "|  COMPILERS - ALGONQUIN COLLEGE (S24)  |"
+# ECHO "=---------------------------------------="
+# ECHO "    @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@    ”
+# ECHO "    @@                             @@    ”
+# ECHO "    @@           %&@@@@@@@@@@@     @@    ”
+# ECHO "    @@       @%% (@@@@@@@@@  @     @@    ”
+# ECHO "    @@      @& @   @ @       @     @@    ”
+# ECHO "    @@     @ @ %  / /   @@@@@@     @@    ”
+# ECHO "    @@      & @ @  @@              @@    ”
+# ECHO "    @@       @/ @*@ @ @   @        @@    ”
+# ECHO "    @@           @@@@  @@ @ @      @@    ”
+# ECHO "    @@            /@@    @@@ @     @@    ”
+# ECHO "    @@     @      / /     @@ @     @@    ”
+# ECHO "    @@     @ @@   /@/   @@@ @      @@    ”
+# ECHO "    @@     @@@@@@@@@@@@@@@         @@    ”
+# ECHO "    @@                             @@    ”
+# ECHO "    @@         S O F I A           @@    ”
+# ECHO "    @@                             @@    ”
+# ECHO "    @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@    ”
+# ECHO "                                         "
+# ECHO "[READER SCRIPT .........................]"
+# ECHO "                                         "
+*/
+
+/*
+************************************************************
+* File name: MainScanner.c
+* Compiler: MS Visual Studio 2022
+* Course: CST 8152 – Compilers, Lab Section: [011, 012]
+* Assignment: A22, A32.
+* Date: May 01 2024
+* Purpose: This file is the main code for Scanner (A22)
+* Function list: (...).
+************************************************************
+*/
+
+/*
+ *.............................................................................
+ * ADVICE 1:
+ * Please check the "TODO" labels to develop your activity.
+ *
+ * ADVICE 2: Preprocessor directives
+ * The #define _CRT_SECURE_NO_WARNINGS should be used in MS Visual Studio projects
+ * to suppress the warnings about using "unsafe" functions like fopen()
+ * and standard sting library functions defined in string.h.
+ * The define directive does not have any effect on other compiler projects
+ * (Gcc, VSCode, Codeblocks, etc.).
+ *.............................................................................
+ */
+
+#define _CRT_SECURE_NO_WARNINGS
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <stdarg.h>
+
+#ifndef COMPILERS_H_
+#include "Compilers.h"
+#endif
+
+#ifndef BUFFER_H_
+#include "Reader.h"
+#endif
+
+#ifndef SCANNER_H_
+#include "Scanner.h"
+#endif
+
+ /*check for ANSI C compliancy */
+#define ANSI_C 0
+#if defined(__STDC__)
+#undef ANSI_C
+#define ANSI_C 1
+#endif
+
+/*
+ * -------------------------------------------------------------
+ *  Global vars and External vars
+ * -------------------------------------------------------------
+ */
+
+ /* Global objects - variables (used in other codes as external) */
+BufferPointer stringLiteralTable;	/* This buffer implements String Literal Table */
+sofia_intg errorNumber;				/* Run-time error number = 0 by default (ANSI) */
+
+/* External objects */
+extern sofia_intg line; /* Source code line numbers - defined in scanner.c */
+extern Token tokenizer(sofia_void);
+
+/*
+ * -------------------------------------------------------------
+ *  Function declarations
+ * -------------------------------------------------------------
+ */
+sofia_void printScannerError(sofia_string fmt, ...);
+sofia_void displayScanner(BufferPointer ptrBuffer);
+sofia_long getScannerFilesize(sofia_string fname);
+sofia_void printToken(Token t);
+
+/*
+************************************************************
+ *  Scanner Main function
+ * Parameters:
+ *   argc / argv = Parameters from command prompt
+ * Return value:
+ *	Success operation.
+ ***********************************************************
+ */
+
+sofia_intg mainScanner(sofia_intg argc, sofia_string* argv) {
+
+	BufferPointer sourceBuffer;		/* Pointer to input (source) buffer */
+	FILE* fileHandler;				/* Input file handle */
+	Token currentToken;				/* Token produced by the scanner */
+	sofia_intg loadSize = 0;			/* The size of the file loaded in the buffer */
+
+	/* Check for correct arrguments - source file name */
+	if (argc <= 2) {
+		/* __DATE__, __TIME__, __LINE__, __FILE__ are predefined preprocessor macros*/
+		printScannerError("Date: %s  Time: %s", __DATE__, __TIME__);
+		printScannerError("Runtime error at line %d in file %s", __LINE__, __FILE__);
+		printScannerError("%s%s", argv[0], ": Missing source file name.");
+		printScannerError("%s", "Usage: <Option=1> <SourceFile>");
+		exit(EXIT_FAILURE);
+	}
+
+	/* Shows debug mode */
+	printf("%s%d%s", "[Debug mode: ", DEBUG, "]\n");
+
+	/* Create a source code input buffer - multiplicative mode */
+	sourceBuffer = readerCreate(READER_DEFAULT_SIZE, READER_DEFAULT_INCREMENT, MODE_MULTI);
+	if (sourceBuffer == NULL) {
+		printScannerError("%s%s", argv[1], ": Could not create source buffer");
+		exit(EXIT_FAILURE);
+	}
+
+	/* Open source file */
+	if ((fileHandler = fopen(argv[2], "r")) == NULL) {
+		printScannerError("%s%s%s", argv[0], ": Cannot open file: ", argv[2]);
+		exit(EXIT_FAILURE);
+	}
+
+	/* Load source file into input buffer  */
+	printf("Reading file %s ....Please wait\n", argv[2]);
+	loadSize = readerLoad(sourceBuffer, fileHandler);
+	if (loadSize == READER_ERROR)
+		printScannerError("%s%s", argv[0], ": Error in loading buffer.");
+
+	/* Close source file */
+	fclose(fileHandler);
+	/* Find the size of the file */
+	if (loadSize == READER_ERROR) {
+		printf("The input file %s %s\n", argv[2], "is not completely loaded.");
+		printf("Input file size: %ld\n", getScannerFilesize(argv[2]));
+	}
+
+	/* Compact and display the source buffer and add SEOF to input program buffer */
+	if ((loadSize != READER_ERROR) && (loadSize != 0)) {
+		if (readerAddChar(sourceBuffer, READER_TERMINATOR)) {
+			displayScanner(sourceBuffer);
+		}
+	}
+
+	/* Create string Literal Table */
+	stringLiteralTable = readerCreate(READER_DEFAULT_SIZE, READER_DEFAULT_INCREMENT, MODE_ADDIT);
+	if (stringLiteralTable == NULL) {
+		printScannerError("%s%s", argv[0], ": Could not create string literals buffer");
+		exit(EXIT_FAILURE);
+	}
+
+	/* Testbed for the scanner and add SEOF to input program buffer*/
+	/* Initialize scanner input buffer */
+	if (startScanner(sourceBuffer)) {
+		printScannerError("%s%s", argv[0], ": Empty program buffer - scanning canceled");
+		exit(EXIT_FAILURE);
+	}
+
+	printf("\nScanning source file...\n\n");
+	printf("Token\t\tAttribute\n");
+	printf("----------------------------------\n");
+	do {
+		currentToken = tokenizer();
+		printToken(currentToken);
+	} while (currentToken.code != SEOF_T);
+
+	/* Print String Literal Table if not empty */
+	printf("\nPrinting string table...\n");
+	printf("----------------------------------\n");
+	if (readerGetPosWrte(stringLiteralTable)) {
+		readerPrint(stringLiteralTable);
+	}
+	printf("\n----------------------------------\n");
+	readerRestore(sourceBuffer);
+	readerRestore(stringLiteralTable);
+	sourceBuffer = stringLiteralTable = NULL;
+	printScannerData(scData);
+	/* Ass2 evaluation only */
+	if (argv[3] != NULL && *argv[3] == 'l')
+		printf("The number of lines is: %d\n", line);
+
+	return (EXIT_SUCCESS);
+}
+
+/*
+************************************************************
+ *  Error printing function with variable number of arguments
+ *  Params: Variable arguments, using formats from C language.
+ *	 - Internal vars use list of arguments and types from stdarg.h
+ *   - NOTE: The format is using signature from C Language
+***********************************************************
+*/
+
+sofia_void printScannerError(sofia_string fmt, ...) {
+	va_list ap;
+	va_start(ap, fmt);
+	(void)vfprintf(stderr, fmt, ap);
+	va_end(ap);
+	/* Move to new line */
+	if (strchr(fmt, '\n') == NULL)
+		fprintf(stderr, "\n");
+}
+
+/*
+************************************************************
+ * The function displays buffer contents
+ * Param:
+ *		- Scanner to be displayed.
+ ***********************************************************
+ */
+
+sofia_void displayScanner(BufferPointer ptrBuffer) {
+	printf("\nPrinting buffer parameters:\n\n");
+	printf("The capacity of the buffer is:  %d\n", readerGetSize(ptrBuffer));
+	printf("The current size of the buffer is:  %d\n", readerGetPosWrte(ptrBuffer));
+	printf("\nPrinting buffer contents:\n\n");
+	readerRecover(ptrBuffer);
+	readerPrint(ptrBuffer);
+}
+
+/*
+ ************************************************************
+ * The function gets size of scanner file
+ * Param:
+ *	- Filename
+ * Return:
+ *	- Size of the file
+ ***********************************************************
+ */
+
+sofia_long getScannerFilesize(sofia_string fname) {
+	FILE* fileInput;
+	sofia_long fileLength;
+	fileInput = fopen(fname, "r");
+	if (fileInput == NULL) {
+		printScannerError("%s%s", "Cannot open file: ", fname);
+		return 0L;
+	}
+	fseek(fileInput, 0L, SEEK_END);
+	fileLength = ftell(fileInput);
+	fclose(fileInput);
+	return fileLength;
+}