new demo

demo.c

@@ -1,29 +1,16 @@
 #include <odweta/vector.h>
-#include <odweta/file.h>
-#include <stdio.h>
-#include <string.h>
 
 int main(int argc, char **argv) {
-	vector_t *vv = vectorInit(VECTOR);
-	vector_t *fv = vectorInit(FLOAT);
-	vectorPrint(vv);
+	vector_t *v = vectorInit(VECTOR);
 
-	vectorPush(fv, &(float){3.14});
-	vectorPush(fv, &(float){5.123});
+	vector_t *floatv = vectorInit(FLOAT);
 
-	vectorPush(vv, fv);
-	vectorPush(vv, fv);
-	vectorPush(vv, fv);
+	vectorPush(floatv, &(float){3.14});
+	vectorPush(floatv, &(float){55.5});
 
-	vectorPush(fv, &(float){156.1});
-	vectorPush(fv, &(float){6.124});
+	vectorPush(v, floatv);
 
-	vectorInsertAt(vv, 1, fv);
-
-	vectorPrint(vv);
-
-	vectorCleanup(vv);
-	vectorCleanup(fv);
+	vectorPrint(v);
 
 	return 0;
 }

include/file.h

@@ -2,23 +2,27 @@
 #define FILE_H
 
 #include <odweta/vector.h>
-#include <stdio.h>
 
 typedef struct {
-	FILE* descriptor; 						// the file descriptor
+	char* path; 							// the file descriptor
 	int length; 							// line count
 	vector_t* lines; 						// 2d array of chars
 } file_t;
 
-file_t* fileInit(char* path, char* mode); 	// initialization function
-											// TODO: when there is not a '\n' at the end of a file, the last line is not loaded :(
+file_t* fileInit(char* path);				// initialization function
 
 void fileCleanup(file_t* f);				// just to be memory safe...
 
-int fileCountLines(file_t* f);				// 
+int fileCountLines(file_t* f);				// counts the lines in a file
 
-void filePrint(file_t* f);
+void filePrint(file_t* f);					// prints the file as a string
 
-char* fileToString(file_t* f);
+char* fileToString(file_t* f);				// returns a string with the file contents
+
+void fileWriteln(file_t* f, char* line);	// appends a given string to the file on a newline
+
+void fileWrite(file_t* f, char* line);		// appends a given string to the file (not on a newline!)
+
+void fileClear(file_t* f);					// wipes the file contents
 
 #endif

src/file.c

@@ -8,26 +8,27 @@ int
 fileCountLines(file_t* f) {
 	char ch;
 	int lines = 0;
+	FILE* fd = fopen(f->path, "r");
 
-	while ((ch = fgetc(f->descriptor)) != EOF) {
+	while ((ch = fgetc(fd)) != EOF) {
 		if (ch == '\n') {
 			lines++;
 		}
 	}
 
-	rewind(f->descriptor);
+	fclose(fd);
 
 	return lines;
 }
 
 void 
-_fileLoadLines(file_t* f) {
+_fileLoadLines(file_t* f, FILE* fd) {
     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) {
+        while ((ch = fgetc(fd)) != '\n' && ch != EOF) {
             vectorPush(line, &ch);
         }
 
@@ -40,8 +41,6 @@ _fileLoadLines(file_t* f) {
         vectorPush(f->lines, line);
         line = vectorInit(CHAR);
     }
-
-    rewind(f->descriptor);
 }
 
 char* 
@@ -50,40 +49,34 @@ fileToString(file_t* f) {
 }
 
 file_t* 
-fileInit(char* path, char* mode) {
+fileInit(char* path) {
 	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->path = path;
 
-	f->descriptor = fopen(path, mode);
-	if (f->descriptor == NULL) {
-		fprintf(stderr, "unable to open file %s with mode %s\n", path, mode);
+	FILE* fd = fopen(f->path, "r");
+	if (fd == NULL) {
+		fprintf(stderr, "unable to open file %s with mode \"r\"\n", path);
+		fclose(fd);
 		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);
+	_fileLoadLines(f, fd);
+
+	fclose(fd);
 
 	return f;
 }
@@ -91,7 +84,6 @@ fileInit(char* path, char* mode) {
 void
 fileCleanup(file_t* f) {
 	vectorCleanup(f->lines);
-	fclose(f->descriptor);
 	free(f);
 }