initial commit

src/file.c

@@ -0,0 +1,105 @@
+#include <odweta/file.h>
+#include <odweta/vector.h>
+#include <string.h>
+#include <stdlib.h>
+#include <stdio.h>
+
+int 
+fileCountLines(file_t* f) {
+	char ch;
+	int lines = 0;
+
+	while ((ch = fgetc(f->descriptor)) != EOF) {
+		if (ch == '\n') {
+			lines++;
+		}
+	}
+
+	rewind(f->descriptor);
+
+	return lines;
+}
+
+void 
+_fileLoadLines(file_t* f) {
+    int lineLength;
+    char ch;
+    vector_t* line = vectorInit(CHAR);
+
+    for (int i = 0; i < f->length; i++) {
+        while ((ch = fgetc(f->descriptor)) != '\n' && ch != EOF) {
+            vectorPush(line, &ch);
+        }
+
+        // Skip the newline character if it exists
+        if (ch == '\n') {
+        	char* empty = "";
+        	vectorPush(line, empty);
+        }
+
+        vectorPush(f->lines, line);
+        line = vectorInit(CHAR);
+    }
+
+    rewind(f->descriptor);
+}
+
+char* 
+fileToString(file_t* f) {
+    return (char *)vectorToString(f->lines);
+}
+
+file_t* 
+fileInit(char* path, char* mode) {
+	file_t* f = malloc(sizeof(file_t));
+	if (f == NULL) {
+        perror("failed to allocate memory for the file\n");
+        exit(EXIT_FAILURE);
+    }
+	f->lines = malloc(sizeof(vector_t));
+	if (f->lines == NULL) {
+        perror("failed to allocate memory for the file contents vector\n");
+        exit(EXIT_FAILURE);
+    }
+	int imode = 0;
+
+	if (strcmp(mode, "r") == 0) {
+		imode = 0;
+	} else if (strcmp(mode, "w") == 0) {
+		imode = 1;
+	} else if (strcmp(mode, "a") == 0) {
+		imode = 2;
+	} else {
+		perror("only allowed modes for file opening are \"r\", \"w\" and \"a\"\n");
+		exit(EXIT_FAILURE);
+	}
+
+	f->descriptor = fopen(path, mode);
+	if (f->descriptor == NULL) {
+		fprintf(stderr, "unable to open file %s with mode %s\n", path, mode);
+		fileCleanup(f);
+		exit(EXIT_FAILURE);
+	}
+
+	f->length = fileCountLines(f);
+	f->lines = vectorInit(VECTOR); // vector of vectors of chars = vector of strings
+	if (imode == 0) _fileLoadLines(f);
+
+	return f;
+}
+
+void
+fileCleanup(file_t* f) {
+	vectorCleanup(f->lines);
+	fclose(f->descriptor);
+	free(f);
+}
+
+void
+filePrint(file_t* f) {
+	vector_t* line = vectorInit(CHAR);
+	for (int i = 0; i < f->length; i++) {
+		line = (vector_t *)vectorGetAt(f->lines, i);
+		vectorPrintAsString(line);
+	}
+}