New module for functions I no longer need to work on

lib.(h|c) basically has structures and functions I no longer want to
stare at in main.c

4 files changed, 119 insertions, 94 deletions

diff --git a/Makefile b/Makefile
index cfd0ecb..9e7800c 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
 CC=gcc
 CFLAGS=-Wall -Wextra -Wpedantic -ggdb -fsanitize=address -std=c11
 LIBS=
-OBJECTS=main.o
+OBJECTS=lib.o main.o
 OUT=obf.out
 ARGS=
 
diff --git a/lib.c b/lib.c
new file mode 100644
index 0000000..83f3516
--- /dev/null
+++ b/lib.c
@@ -0,0 +1,57 @@
+/* lib.c
+ * Created: 2023-09-02
+ * Author: Aryadev Chavali
+ * Description: General functions used throughout
+ */
+
+#include <string.h>
+
+#include "./lib.h"
+
+buffer_t *buffer_init_str(const char *name, const char *str, size_t str_size)
+{
+  buffer_t *buf = malloc(sizeof(*buf) + str_size + 1);
+  buf->name     = name;
+  buf->size     = str_size;
+  memcpy(buf->data, str, str_size);
+  buf->data[str_size] = '\0';
+  return buf;
+}
+
+void print_error(const char *handle, size_t row, size_t column,
+                 const char *reason)
+{
+  fprintf(stderr, "%s:%lu:%lu:%s\n", handle, row, column, reason);
+}
+
+char *fread_all(FILE *fp)
+{
+  const size_t CHUNK_SIZE = 1024, MULT = 2;
+  struct
+  {
+    char *data;
+    size_t used, available;
+  } buffer = {calloc(CHUNK_SIZE, sizeof(*buffer.data)), 0, CHUNK_SIZE};
+
+  size_t acc = 0, bytes_read = 0;
+  while ((bytes_read = fread(buffer.data + acc, sizeof(*buffer.data),
+                             CHUNK_SIZE, fp)) != 0)
+  {
+    buffer.used += bytes_read;
+    acc += bytes_read;
+    if (buffer.used + CHUNK_SIZE >= buffer.available)
+    {
+      buffer.available = MAX(buffer.available * MULT, buffer.used + CHUNK_SIZE);
+      buffer.data      = realloc(buffer.data, buffer.available);
+    }
+  }
+  buffer.data              = realloc(buffer.data, buffer.used + 1);
+  buffer.data[buffer.used] = '\0';
+  return buffer.data;
+}
+
+bool usable_character(char c)
+{
+  return c == '>' || c == '<' || c == '+' || c == '-' || c == '-' || c == '.' ||
+         c == ',' || c == '[' || c == ']';
+}
diff --git a/lib.h b/lib.h
new file mode 100644
index 0000000..f0fa170
--- /dev/null
+++ b/lib.h
@@ -0,0 +1,23 @@
+#ifndef LIB_H
+#define LIB_H
+
+#include <stdbool.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+#define MAX(a, b) (a > b ? a : b)
+
+bool usable_character(char c);
+char *fread_all(FILE *fp);
+void print_error(const char *handle, size_t row, size_t column,
+                 const char *reason);
+
+typedef struct Buffer
+{
+  const char *name;
+  size_t size;
+  char data[];
+} buffer_t;
+
+buffer_t *buffer_init_str(const char *name, const char *str, size_t str_size);
+#endif
diff --git a/main.c b/main.c
index e2a0ec9..dc7269a 100644
--- a/main.c
+++ b/main.c
@@ -10,6 +10,8 @@
 #include <stdlib.h>
 #include <string.h>
 
+#include "./lib.h"
+
 #define MEMORY_DEFAULT 30000
 
 typedef struct
@@ -18,12 +20,6 @@ typedef struct
   uint8_t memory[MEMORY_DEFAULT];
 } machine_t;
 
-bool usable_character(char c)
-{
-  return c == '>' || c == '<' || c == '+' || c == '-' || c == '-' || c == '.' ||
-         c == ',' || c == '[' || c == ']';
-}
-
 typedef struct AST
 {
   size_t col, row;
@@ -41,34 +37,48 @@ typedef struct AST
   int loop_ref;
 } node_t;
 
-typedef struct Buffer
-{
-  const char *name;
-  size_t size;
-  char data[];
-} buffer_t;
-
-buffer_t *buffer_init_str(const char *name, const char *str, size_t str_size)
-{
-  buffer_t *buf = malloc(sizeof(*buf) + str_size + 1);
-  buf->name     = name;
-  buf->size     = str_size;
-  memcpy(buf->data, str, str_size);
-  buf->data[str_size] = '\0';
-  return buf;
-}
-
-void print_error(const char *handle, size_t row, size_t column,
-                 const char *reason)
+char *ast_to_str(node_t *ast, size_t size)
 {
-  fprintf(stderr, "%s:%lu:%lu:%s\n", handle, row, column, reason);
+  char *out = calloc(size + 1, 1);
+  for (size_t i = 0; i < size; ++i)
+  {
+    switch (ast[i].type)
+    {
+    case NEXT:
+      out[i] = '>';
+      break;
+    case PREV:
+      out[i] = '<';
+      break;
+    case INC:
+      out[i] = '+';
+      break;
+    case DEC:
+      out[i] = '-';
+      break;
+    case OUT:
+      out[i] = '.';
+      break;
+    case READ:
+      out[i] = ',';
+      break;
+    case LIN:
+      out[i] = '[';
+      break;
+    case LOUT:
+      out[i] = ']';
+      break;
+    }
+  }
+  out[size] = '\0';
+  return out;
 }
 
 struct PResult
 {
   node_t *nodes;
   size_t size;
-} parse_input(buffer_t *buffer)
+} parse_buffer(buffer_t *buffer)
 {
   node_t *nodes = NULL;
   size_t usable = 0, loops = 0;
@@ -166,71 +176,6 @@ error:
   return (struct PResult){0};
 }
 
-char *ast_to_str(node_t *ast, size_t size)
-{
-  char *out = calloc(size + 1, 1);
-  for (size_t i = 0; i < size; ++i)
-  {
-    switch (ast[i].type)
-    {
-    case NEXT:
-      out[i] = '>';
-      break;
-    case PREV:
-      out[i] = '<';
-      break;
-    case INC:
-      out[i] = '+';
-      break;
-    case DEC:
-      out[i] = '-';
-      break;
-    case OUT:
-      out[i] = '.';
-      break;
-    case READ:
-      out[i] = ',';
-      break;
-    case LIN:
-      out[i] = '[';
-      break;
-    case LOUT:
-      out[i] = ']';
-      break;
-    }
-  }
-  out[size] = '\0';
-  return out;
-}
-
-#define MAX(a, b) (a > b ? a : b)
-
-char *fread_all(FILE *fp)
-{
-  const size_t CHUNK_SIZE = 1024, MULT = 2;
-  struct
-  {
-    char *data;
-    size_t used, available;
-  } buffer = {calloc(CHUNK_SIZE, sizeof(*buffer.data)), 0, CHUNK_SIZE};
-
-  size_t acc = 0, bytes_read = 0;
-  while ((bytes_read = fread(buffer.data + acc, sizeof(*buffer.data),
-                             CHUNK_SIZE, fp)) != 0)
-  {
-    buffer.used += bytes_read;
-    acc += bytes_read;
-    if (buffer.used + CHUNK_SIZE >= buffer.available)
-    {
-      buffer.available = MAX(buffer.available * MULT, buffer.used + CHUNK_SIZE);
-      buffer.data      = realloc(buffer.data, buffer.available);
-    }
-  }
-  buffer.data              = realloc(buffer.data, buffer.used + 1);
-  buffer.data[buffer.used] = '\0';
-  return buffer.data;
-}
-
 int main(int argc, char *argv[])
 {
   if (argc == 1)
@@ -260,7 +205,7 @@ int main(int argc, char *argv[])
     fclose(handle);
 
     buffer = buffer_init_str(filepath, file_data, strlen(file_data));
-    res    = parse_input(buffer);
+    res    = parse_buffer(buffer);
     if (res.nodes == NULL)
     {
       fputs("Exiting early...\n", stderr);