Extract file IO ops into separate file

CMakeLists.txt

@@ -7,6 +7,6 @@ add_executable(NameSort src/main.c
                         src/name_string.c
         src/string_vector.c
                         include/name_string.h
-                        include/string_vector.h)
+                        include/string_vector.h include/file_io.h src/file_io.c)
 
 target_include_directories(NameSort PRIVATE ${CMAKE_SOURCE_DIR}/include)

include/file_io.h

@@ -0,0 +1,13 @@
+//
+// Created by Aargo on 10/17/2019.
+//
+
+#ifndef NAMESORT_FILE_IO_H
+#define NAMESORT_FILE_IO_H
+
+#include <string_vector.h>
+
+char *read_line(FILE *file, int *eof_reached);
+void read_file_into_vector(FILE *file, string_vector *vector);
+
+#endif //NAMESORT_FILE_IO_H

src/file_io.c

@@ -0,0 +1,53 @@
+#include <stdio.h>
+#include <stdlib.h>
+
+#include <file_io.h>
+
+char *read_line(FILE *file, int *eof_reached)
+{
+    char *lineBuffer = malloc(sizeof(char) * MAX_STR_SIZE + 1);
+
+    int ch = getc(file);
+    int count = 0;
+    while((ch != '\n') && (ch != EOF))
+    {
+        if(count == MAX_STR_SIZE)
+        {
+            fprintf(stderr,
+                    "Encounted name that is too long. Max name length is %d!\n",
+                    MAX_STR_SIZE);
+            exit(2);
+        }
+        lineBuffer[count] = (char)ch;
+        count++;
+        ch = getc(file);
+    }
+    if(ch == EOF)
+    {
+        *eof_reached = 1;
+    }
+    lineBuffer[count] = '\0';
+    return lineBuffer;
+}
+
+void read_file_into_vector(FILE *file, string_vector *vector)
+{
+    if(!file || !vector)
+    {
+        fprintf(stderr, "Invalid File Or Memory Error\n");
+        return;
+    }
+    int eof_reached = 0;
+    while(!eof_reached)
+    {
+        char *line = read_line(file, &eof_reached);
+        string *str = strip(create_from_cstr(line));
+        free(line);
+        if(str->len == 0)
+        {
+            destroy_string(str);
+            continue;
+        }
+        vector_add(vector, str);
+    }
+}

src/main.c

@@ -1,5 +1,6 @@
 #include <stdio.h>
 #include <stdlib.h>
+#include <file_io.h>
 #include <name_string.h>
 #include <string_vector.h>
 
@@ -31,55 +32,6 @@ void perform_length_alphabet_sort(string_vector *vector)
     qsort((void *) vector->array, vector->size, sizeof(string *), compare);
 }
 
-char *read_line(FILE *file, int *eof_reached)
-{
-    char *lineBuffer = malloc(sizeof(char) * MAX_STR_SIZE + 1);
-
-    int ch = getc(file);
-    int count = 0;
-    while((ch != '\n') && (ch != EOF))
-    {
-        if(count == MAX_STR_SIZE)
-        {
-            fprintf(stderr,
-                    "Encounted name that is too long. Max name length is %d!\n",
-                    MAX_STR_SIZE);
-            exit(2);
-        }
-        lineBuffer[count] = (char)ch;
-        count++;
-        ch = getc(file);
-    }
-    if(ch == EOF)
-    {
-        *eof_reached = 1;
-    }
-    lineBuffer[count] = '\0';
-    return lineBuffer;
-}
-
-void read_file_into_vector(FILE *file, string_vector *vector)
-{
-    if(!file || !vector)
-    {
-        fprintf(stderr, "Invalid File Or Memory Error\n");
-        return;
-    }
-    int eof_reached = 0;
-    while(!eof_reached)
-    {
-        char *line = read_line(file, &eof_reached);
-        string *str = strip(create_from_cstr(line));
-        free(line);
-        if(str->len == 0)
-        {
-            destroy_string(str);
-            continue;
-        }
-        vector_add(vector, str);
-    }
-}
-
 int main(int argc, char **argv)
 {
     if(argc < 2)