diff based/basedfilelib.h @ 20:0555050bada0

Make it pretty
author VilyaemKenyaz
date Wed, 27 Sep 2023 08:51:57 -0400
parents
children
line wrap: on
line diff
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/based/basedfilelib.h	Wed Sep 27 08:51:57 2023 -0400
@@ -0,0 +1,132 @@
+/*********************************************
+* Description - BasedFileLib makes file I/O less like *nix and more like 
+* TempleOS
+* Author - William King
+* Date - Sep 25 2023
+* *******************************************/
+
+#define MAX_LINES 100000
+#define MAXLENGTH 512
+
+char* ReadFile(const char* fileName) {
+	FILE* file = fopen(fileName, "rb");
+	if (file == NULL) {
+		perror("Error opening file");
+		return NULL;
+	}
+
+	fseek(file, 0, SEEK_END);
+	long fileSize = ftell(file);
+	rewind(file);
+
+	char* fileContent = (char*)malloc(fileSize * sizeof(char));
+	if (fileContent == NULL) {
+		perror("Error allocating memory for file content");
+		fclose(file);
+		return NULL;
+	}
+
+	size_t readSize = fread(fileContent, sizeof(char), fileSize, file);
+	if (readSize != fileSize) {
+		perror("Error reading file");
+		fclose(file);
+		free(fileContent);
+		return NULL;
+	}
+
+	fclose(file);
+	return fileContent;
+}
+
+void WriteFile(const char* fileName, const char* content) {
+	FILE* file = fopen(fileName, "wb");
+	if (file == NULL) {
+		perror("Error opening file");
+	}
+
+	size_t writeSize = fwrite(content, sizeof(char), strlen(content), file);
+	if (writeSize != strlen(content)) {
+		perror("Error writing to file");
+		fclose(file);
+	}
+
+	fclose(file);
+}
+
+
+char* DeleteLine(char* str, unsigned int line_number) {
+	char* lines[MAX_LINES];
+	char* line;
+	unsigned int current_line = 0;
+
+	line = strtok(str, "\n");
+	while (line != NULL && current_line < MAX_LINES) {
+		lines[current_line++] = line;
+		line = strtok(NULL, "\n");
+	}
+
+	// Delete the specified line
+	if (line_number > 0 && line_number <= current_line) {
+		for (unsigned int i = line_number - 1; i < current_line - 1; i++) {
+			lines[i] = lines[i + 1];
+		}
+		current_line--;
+	}
+
+	// Reconstruct the string with remaining lines
+	str[0] = '\0';
+	for (unsigned int i = 0; i < current_line; i++) {
+		strcat(str, lines[i]);
+		strcat(str, "\n");
+	}
+
+	return str;
+}
+
+
+
+char* ReadLine(const char *str, unsigned int lineNum) {
+	int currentLine = 1;
+	size_t strLen = strlen(str);
+	char *line = NULL;
+
+	line = malloc(strLen + 1);
+	if (line == NULL) {
+		fprintf(stderr, "Error: memory allocation failed.\n");
+		exit(1);
+	}
+
+	int lineStartIndex = 0;
+	int lineEndIndex = 0;
+
+	// Traverse through the string until the desired line or the end of the string
+	while (currentLine <= lineNum && lineEndIndex < strLen) {
+		// Find the start index of the current line
+		while (lineStartIndex < strLen && (str[lineStartIndex] == '\n' || str[lineStartIndex] == '\r')) {
+			lineStartIndex++;
+			lineEndIndex++;
+		}
+
+		// Find the end index of the current line
+		lineEndIndex = lineStartIndex;
+		while (lineEndIndex < strLen && str[lineEndIndex] != '\n' && str[lineEndIndex] != '\r') {
+			lineEndIndex++;
+		}
+
+		// Check if the desired line is found
+		if (currentLine == lineNum) {
+			// Copy the line to the allocated memory
+			strncpy(line, str + lineStartIndex, lineEndIndex - lineStartIndex);
+			line[lineEndIndex - lineStartIndex] = '\0';
+			break;
+		}
+
+		// Move to the start of the next line
+		currentLine++;
+		lineStartIndex = lineEndIndex;
+	}
+
+	return line;
+}
+
+//BasedFileLib