refactor

6 files changed, 0 insertions, 1116 deletions

diff --git a/src/util/regex.c b/src/util/regex.c
deleted file mode 100644
index 0e0dc52..0000000
--- a/src/util/regex.c
+++ /dev/null
@@ -1,528 +0,0 @@
-/*
- *
- * Mini regex-module inspired by Rob Pike's regex code described in:
- *
- * http://www.cs.princeton.edu/courses/archive/spr09/cos333/beautiful.html
- *
- *
- *
- * Supports:
- * ---------
- *   '.'        Dot, matches any character
- *   '^'        Start anchor, matches beginning of string
- *   '$'        End anchor, matches end of string
- *   '*'        Asterisk, match zero or more (greedy)
- *   '+'        Plus, match one or more (greedy)
- *   '?'        Question, match zero or one (non-greedy)
- *   '[abc]'    Character class, match if one of {'a', 'b', 'c'}
- *   '[^abc]'   Inverted class, match if NOT one of {'a', 'b', 'c'} -- NOTE: feature is currently broken!
- *   '[a-zA-Z]' Character ranges, the character set of the ranges { a-z | A-Z }
- *   '\s'       Whitespace, \t \f \r \n \v and spaces
- *   '\S'       Non-whitespace
- *   '\w'       Alphanumeric, [a-zA-Z0-9_]
- *   '\W'       Non-alphanumeric
- *   '\d'       Digits, [0-9]
- *   '\D'       Non-digits
- *
- *
- */
-
-
-
-#include "regex.h"
-#include <stdio.h>
-#include <ctype.h>
-
-/* Definitions: */
-
-#define MAX_REGEXP_OBJECTS      30    /* Max number of regex symbols in expression. */
-#define MAX_CHAR_CLASS_LEN      40    /* Max length of character-class buffer in.   */
-
-
-enum { UNUSED, DOT, BEGIN, END, QUESTIONMARK, STAR, PLUS, CHAR, CHAR_CLASS, INV_CHAR_CLASS, DIGIT, NOT_DIGIT, ALPHA, NOT_ALPHA, WHITESPACE, NOT_WHITESPACE};
-
-typedef struct regex_t
-{
-  unsigned char  type;   /* CHAR, STAR, etc.                      */
-  union
-  {
-    unsigned char  ch;   /*      the character itself             */
-    unsigned char* ccl;  /*  OR  a pointer to characters in class */
-  } u;
-} regex_t;
-
-
-
-/* Private function declarations: */
-static int matchpattern(regex_t* pattern, const char* text, int* matchlength);
-static int matchcharclass(char c, const char* str);
-static int matchstar(regex_t p, regex_t* pattern, const char* text, int* matchlength);
-static int matchplus(regex_t p, regex_t* pattern, const char* text, int* matchlength);
-static int matchone(regex_t p, char c);
-static int matchdigit(char c);
-static int matchalpha(char c);
-static int matchwhitespace(char c);
-static int matchmetachar(char c, const char* str);
-static int matchrange(char c, const char* str);
-static int matchdot(char c);
-static int ismetachar(char c);
-
-
-
-/* Public functions: */
-int re_match(const char* pattern, const char* text, int* matchlength)
-{
-  return re_matchp(re_compile(pattern), text, matchlength);
-}
-
-int re_matchp(re_t pattern, const char* text, int* matchlength)
-{
-  *matchlength = 0;
-  if (pattern != 0)
-  {
-    if (pattern[0].type == BEGIN)
-    {
-      return ((matchpattern(&pattern[1], text, matchlength)) ? 0 : -1);
-    }
-    else
-    {
-      int idx = -1;
-
-      do
-      {
-        idx += 1;
-
-        if (matchpattern(pattern, text, matchlength))
-        {
-          if (text[0] == '\0')
-            return -1;
-
-          return idx;
-        }
-      }
-      while (*text++ != '\0');
-    }
-  }
-  return -1;
-}
-
-re_t re_compile(const char* pattern)
-{
-  /* The sizes of the two static arrays below substantiates the static RAM usage of this module.
-     MAX_REGEXP_OBJECTS is the max number of symbols in the expression.
-     MAX_CHAR_CLASS_LEN determines the size of buffer for chars in all char-classes in the expression. */
-  static regex_t re_compiled[MAX_REGEXP_OBJECTS];
-  static unsigned char ccl_buf[MAX_CHAR_CLASS_LEN];
-  int ccl_bufidx = 1;
-
-  char c;     /* current char in pattern   */
-  int i = 0;  /* index into pattern        */
-  int j = 0;  /* index into re_compiled    */
-
-  while (pattern[i] != '\0' && (j+1 < MAX_REGEXP_OBJECTS))
-  {
-    c = pattern[i];
-
-    switch (c)
-    {
-      /* Meta-characters: */
-      case '^': {    re_compiled[j].type = BEGIN;           } break;
-      case '$': {    re_compiled[j].type = END;             } break;
-      case '.': {    re_compiled[j].type = DOT;             } break;
-      case '*': {    re_compiled[j].type = STAR;            } break;
-      case '+': {    re_compiled[j].type = PLUS;            } break;
-      case '?': {    re_compiled[j].type = QUESTIONMARK;    } break;
-/*    case '|': {    re_compiled[j].type = BRANCH;          } break; <-- not working properly */
-
-      /* Escaped character-classes (\s \w ...): */
-      case '\\':
-      {
-        if (pattern[i+1] != '\0')
-        {
-          /* Skip the escape-char '\\' */
-          i += 1;
-          /* ... and check the next */
-          switch (pattern[i])
-          {
-            /* Meta-character: */
-            case 'd': {    re_compiled[j].type = DIGIT;            } break;
-            case 'D': {    re_compiled[j].type = NOT_DIGIT;        } break;
-            case 'w': {    re_compiled[j].type = ALPHA;            } break;
-            case 'W': {    re_compiled[j].type = NOT_ALPHA;        } break;
-            case 's': {    re_compiled[j].type = WHITESPACE;       } break;
-            case 'S': {    re_compiled[j].type = NOT_WHITESPACE;   } break;
-
-            /* Escaped character, e.g. '.' or '$' */
-            default:
-            {
-              re_compiled[j].type = CHAR;
-              re_compiled[j].u.ch = pattern[i];
-            } break;
-          }
-        }
-        /* '\\' as last char in pattern -> invalid regular expression. */
-/*
-        else
-        {
-          re_compiled[j].type = CHAR;
-          re_compiled[j].ch = pattern[i];
-        }
-*/
-      } break;
-
-      /* Character class: */
-      case '[':
-      {
-        /* Remember where the char-buffer starts. */
-        int buf_begin = ccl_bufidx;
-
-        /* Look-ahead to determine if negated */
-        if (pattern[i+1] == '^')
-        {
-          re_compiled[j].type = INV_CHAR_CLASS;
-          i += 1; /* Increment i to avoid including '^' in the char-buffer */
-          if (pattern[i+1] == 0) /* incomplete pattern, missing non-zero char after '^' */
-          {
-            return 0;
-          }
-        }
-        else
-        {
-          re_compiled[j].type = CHAR_CLASS;
-        }
-
-        /* Copy characters inside [..] to buffer */
-        while (    (pattern[++i] != ']')
-                && (pattern[i]   != '\0')) /* Missing ] */
-        {
-          if (pattern[i] == '\\')
-          {
-            if (ccl_bufidx >= MAX_CHAR_CLASS_LEN - 1)
-            {
-              /* fputs("exceeded internal buffer!\n", stderr); */
-              return 0;
-            }
-            if (pattern[i+1] == 0) /* incomplete pattern, missing non-zero char after '\\' */
-            {
-              return 0;
-            }
-            ccl_buf[ccl_bufidx++] = pattern[i++];
-          }
-          else if (ccl_bufidx >= MAX_CHAR_CLASS_LEN)
-          {
-              /* fputs("exceeded internal buffer!\n", stderr); */
-              return 0;
-          }
-          ccl_buf[ccl_bufidx++] = pattern[i];
-        }
-        if (ccl_bufidx >= MAX_CHAR_CLASS_LEN)
-        {
-            /* Catches cases such as [00000000000000000000000000000000000000][ */
-            /* fputs("exceeded internal buffer!\n", stderr); */
-            return 0;
-        }
-        /* Null-terminate string end */
-        ccl_buf[ccl_bufidx++] = 0;
-        re_compiled[j].u.ccl = &ccl_buf[buf_begin];
-      } break;
-
-      /* Other characters: */
-      default:
-      {
-        re_compiled[j].type = CHAR;
-        re_compiled[j].u.ch = c;
-      } break;
-    }
-    /* no buffer-out-of-bounds access on invalid patterns - see https://github.com/kokke/tiny-regex-c/commit/1a279e04014b70b0695fba559a7c05d55e6ee90b */
-    if (pattern[i] == 0)
-    {
-      return 0;
-    }
-
-    i += 1;
-    j += 1;
-  }
-  /* 'UNUSED' is a sentinel used to indicate end-of-pattern */
-  re_compiled[j].type = UNUSED;
-
-  return (re_t) re_compiled;
-}
-
-void re_print(regex_t* pattern)
-{
-  const char* types[] = { "UNUSED", "DOT", "BEGIN", "END", "QUESTIONMARK", "STAR", "PLUS", "CHAR", "CHAR_CLASS", "INV_CHAR_CLASS", "DIGIT", "NOT_DIGIT", "ALPHA", "NOT_ALPHA", "WHITESPACE", "NOT_WHITESPACE", "BRANCH" };
-
-  int i;
-  int j;
-  char c;
-  for (i = 0; i < MAX_REGEXP_OBJECTS; ++i)
-  {
-    if (pattern[i].type == UNUSED)
-    {
-      break;
-    }
-
-    printf("type: %s", types[pattern[i].type]);
-    if (pattern[i].type == CHAR_CLASS || pattern[i].type == INV_CHAR_CLASS)
-    {
-      printf(" [");
-      for (j = 0; j < MAX_CHAR_CLASS_LEN; ++j)
-      {
-        c = pattern[i].u.ccl[j];
-        if ((c == '\0') || (c == ']'))
-        {
-          break;
-        }
-        printf("%c", c);
-      }
-      printf("]");
-    }
-    else if (pattern[i].type == CHAR)
-    {
-      printf(" '%c'", pattern[i].u.ch);
-    }
-    printf("\n");
-  }
-}
-
-
-
-/* Private functions: */
-static int matchdigit(char c)
-{
-  return isdigit(c);
-}
-static int matchalpha(char c)
-{
-  return isalpha(c);
-}
-static int matchwhitespace(char c)
-{
-  return isspace(c);
-}
-static int matchalphanum(char c)
-{
-  return ((c == '_') || matchalpha(c) || matchdigit(c));
-}
-static int matchrange(char c, const char* str)
-{
-  return (    (c != '-')
-           && (str[0] != '\0')
-           && (str[0] != '-')
-           && (str[1] == '-')
-           && (str[2] != '\0')
-           && (    (c >= str[0])
-                && (c <= str[2])));
-}
-static int matchdot(char c)
-{
-#if defined(RE_DOT_MATCHES_NEWLINE) && (RE_DOT_MATCHES_NEWLINE == 1)
-  (void)c;
-  return 1;
-#else
-  return c != '\n' && c != '\r';
-#endif
-}
-static int ismetachar(char c)
-{
-  return ((c == 's') || (c == 'S') || (c == 'w') || (c == 'W') || (c == 'd') || (c == 'D'));
-}
-
-static int matchmetachar(char c, const char* str)
-{
-  switch (str[0])
-  {
-    case 'd': return  matchdigit(c);
-    case 'D': return !matchdigit(c);
-    case 'w': return  matchalphanum(c);
-    case 'W': return !matchalphanum(c);
-    case 's': return  matchwhitespace(c);
-    case 'S': return !matchwhitespace(c);
-    default:  return (c == str[0]);
-  }
-}
-
-static int matchcharclass(char c, const char* str)
-{
-  do
-  {
-    if (matchrange(c, str))
-    {
-      return 1;
-    }
-    else if (str[0] == '\\')
-    {
-      /* Escape-char: increment str-ptr and match on next char */
-      str += 1;
-      if (matchmetachar(c, str))
-      {
-        return 1;
-      }
-      else if ((c == str[0]) && !ismetachar(c))
-      {
-        return 1;
-      }
-    }
-    else if (c == str[0])
-    {
-      if (c == '-')
-      {
-        return ((str[-1] == '\0') || (str[1] == '\0'));
-      }
-      else
-      {
-        return 1;
-      }
-    }
-  }
-  while (*str++ != '\0');
-
-  return 0;
-}
-
-static int matchone(regex_t p, char c)
-{
-  switch (p.type)
-  {
-    case DOT:            return matchdot(c);
-    case CHAR_CLASS:     return  matchcharclass(c, (const char*)p.u.ccl);
-    case INV_CHAR_CLASS: return !matchcharclass(c, (const char*)p.u.ccl);
-    case DIGIT:          return  matchdigit(c);
-    case NOT_DIGIT:      return !matchdigit(c);
-    case ALPHA:          return  matchalphanum(c);
-    case NOT_ALPHA:      return !matchalphanum(c);
-    case WHITESPACE:     return  matchwhitespace(c);
-    case NOT_WHITESPACE: return !matchwhitespace(c);
-    default:             return  (p.u.ch == c);
-  }
-}
-
-static int matchstar(regex_t p, regex_t* pattern, const char* text, int* matchlength)
-{
-  int prelen = *matchlength;
-  const char* prepoint = text;
-  while ((text[0] != '\0') && matchone(p, *text))
-  {
-    text++;
-    (*matchlength)++;
-  }
-  while (text >= prepoint)
-  {
-    if (matchpattern(pattern, text--, matchlength))
-      return 1;
-    (*matchlength)--;
-  }
-
-  *matchlength = prelen;
-  return 0;
-}
-
-static int matchplus(regex_t p, regex_t* pattern, const char* text, int* matchlength)
-{
-  const char* prepoint = text;
-  while ((text[0] != '\0') && matchone(p, *text))
-  {
-    text++;
-    (*matchlength)++;
-  }
-  while (text > prepoint)
-  {
-    if (matchpattern(pattern, text--, matchlength))
-      return 1;
-    (*matchlength)--;
-  }
-
-  return 0;
-}
-
-static int matchquestion(regex_t p, regex_t* pattern, const char* text, int* matchlength)
-{
-  if (p.type == UNUSED)
-    return 1;
-  if (matchpattern(pattern, text, matchlength))
-      return 1;
-  if (*text && matchone(p, *text++))
-  {
-    if (matchpattern(pattern, text, matchlength))
-    {
-      (*matchlength)++;
-      return 1;
-    }
-  }
-  return 0;
-}
-
-
-#if 0
-
-/* Recursive matching */
-static int matchpattern(regex_t* pattern, const char* text, int *matchlength)
-{
-  int pre = *matchlength;
-  if ((pattern[0].type == UNUSED) || (pattern[1].type == QUESTIONMARK))
-  {
-    return matchquestion(pattern[1], &pattern[2], text, matchlength);
-  }
-  else if (pattern[1].type == STAR)
-  {
-    return matchstar(pattern[0], &pattern[2], text, matchlength);
-  }
-  else if (pattern[1].type == PLUS)
-  {
-    return matchplus(pattern[0], &pattern[2], text, matchlength);
-  }
-  else if ((pattern[0].type == END) && pattern[1].type == UNUSED)
-  {
-    return text[0] == '\0';
-  }
-  else if ((text[0] != '\0') && matchone(pattern[0], text[0]))
-  {
-    (*matchlength)++;
-    return matchpattern(&pattern[1], text+1);
-  }
-  else
-  {
-    *matchlength = pre;
-    return 0;
-  }
-}
-
-#else
-
-/* Iterative matching */
-static int matchpattern(regex_t* pattern, const char* text, int* matchlength)
-{
-  int pre = *matchlength;
-  do
-  {
-    if ((pattern[0].type == UNUSED) || (pattern[1].type == QUESTIONMARK))
-    {
-      return matchquestion(pattern[0], &pattern[2], text, matchlength);
-    }
-    else if (pattern[1].type == STAR)
-    {
-      return matchstar(pattern[0], &pattern[2], text, matchlength);
-    }
-    else if (pattern[1].type == PLUS)
-    {
-      return matchplus(pattern[0], &pattern[2], text, matchlength);
-    }
-    else if ((pattern[0].type == END) && pattern[1].type == UNUSED)
-    {
-      return (text[0] == '\0');
-    }
-/*  Branching is not working properly
-    else if (pattern[1].type == BRANCH)
-    {
-      return (matchpattern(pattern, text) || matchpattern(&pattern[2], text));
-    }
-*/
-  (*matchlength)++;
-  }
-  while ((text[0] != '\0') && matchone(*pattern++, *text++));
-
-  *matchlength = pre;
-  return 0;
-}
-
-#endif
diff --git a/src/util/regex.h b/src/util/regex.h
deleted file mode 100644
index 69facc6..0000000
--- a/src/util/regex.h
+++ /dev/null
@@ -1,65 +0,0 @@
-/*
- *
- * Mini regex-module inspired by Rob Pike's regex code described in:
- *
- * http://www.cs.princeton.edu/courses/archive/spr09/cos333/beautiful.html
- *
- *
- *
- * Supports:
- * ---------
- *   '.'        Dot, matches any character
- *   '^'        Start anchor, matches beginning of string
- *   '$'        End anchor, matches end of string
- *   '*'        Asterisk, match zero or more (greedy)
- *   '+'        Plus, match one or more (greedy)
- *   '?'        Question, match zero or one (non-greedy)
- *   '[abc]'    Character class, match if one of {'a', 'b', 'c'}
- *   '[^abc]'   Inverted class, match if NOT one of {'a', 'b', 'c'} -- NOTE: feature is currently broken!
- *   '[a-zA-Z]' Character ranges, the character set of the ranges { a-z | A-Z }
- *   '\s'       Whitespace, \t \f \r \n \v and spaces
- *   '\S'       Non-whitespace
- *   '\w'       Alphanumeric, [a-zA-Z0-9_]
- *   '\W'       Non-alphanumeric
- *   '\d'       Digits, [0-9]
- *   '\D'       Non-digits
- *
- *
- */
-
-#ifndef _TINY_REGEX_C
-#define _TINY_REGEX_C
-
-
-#ifndef RE_DOT_MATCHES_NEWLINE
-/* Define to 0 if you DON'T want '.' to match '\r' + '\n' */
-#define RE_DOT_MATCHES_NEWLINE 1
-#endif
-
-#ifdef __cplusplus
-extern "C"{
-#endif
-
-
-
-/* Typedef'd pointer to get abstract datatype. */
-typedef struct regex_t* re_t;
-
-
-/* Compile regex string pattern to a regex_t-array. */
-re_t re_compile(const char* pattern);
-
-
-/* Find matches of the compiled pattern inside text. */
-int re_matchp(re_t pattern, const char* text, int* matchlength);
-
-
-/* Find matches of the txt pattern inside text (will compile automatically first). */
-int re_match(const char* pattern, const char* text, int* matchlength);
-
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif /* ifndef _TINY_REGEX_C */
diff --git a/src/util/shared.c b/src/util/shared.c
deleted file mode 100644
index 2e0c98a..0000000
--- a/src/util/shared.c
+++ /dev/null
@@ -1,372 +0,0 @@
-#include "shared.h"
-
-#include <ctype.h>
-#include <errno.h>
-#include <limits.h>
-#include <stdarg.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <time.h>
-#include <sys/stat.h>
-#include <paths.h>
-
-extern char* cmd;
-
-void error_s(const char *format, ...) {
-    va_list list;
-    va_start(list, format);
-
-    fprintf(stderr, "%s: ", cmd);
-    vfprintf(stderr, format, list);
-    fprintf(stderr, "\n");
-}
-
-void error(const char *format, ...) {
-    va_list list;
-    va_start(list, format);
-
-    fprintf(stderr, "%s: ", cmd);
-    vfprintf(stderr, format, list);
-    fprintf(stderr, "\n");
-    exit(EXIT_FAILURE);
-}
-
-void output(const char *format, ...) {
-    va_list list;
-    va_start(list, format);
-
-    fprintf(stdout, "%s: ", cmd);
-    vfprintf(stdout, format, list);
-    fprintf(stdout, "\n");
-}
-
-FILE* get_file_s(const char* path, const char* type) {
-    struct stat s;
-    FILE* file;
-
-    if (streql("-", path) && type[0] == 'r') {
-        clearerr(stdin);
-        fflush(stdin);
-        return stdin;
-    }
-    
-    if (lstat(path, &s) < 0) {
-        if (type[0] != 'r') goto read;
-        error_s("failed to read %s: %s", path, strerror(errno));
-        return NULL;
-    }
-    
-    if (S_ISDIR(s.st_mode)) {
-        error_s("%s is a directory", path);
-        return NULL;
-    }
-
-read:
-    
-    file = fopen(path, type);
-    
-    if (file == NULL) {
-        error_s("failed to %s file %s: %s", type[0] == 'r' ? "read" : "write", path, strerror(errno));
-    }
-    
-    return file;
-}
-
-FILE* get_file(const char* path, const char* type) {
-    FILE* file = get_file_s(path, type);
-    if (file == NULL) exit(EXIT_FAILURE);
-    return file;
-}
-
-long int get_number(const char* text) {
-    char* end;
-    long int n = strtol(text, &end, 10);
-    if (text == end) {
-        error("%s is not a valid number", text);
-    }
-    return n;
-}
-
-long int get_blkm(const char* text) {
-    char* end;
-    long int n = strtol(text, &end, 10);
-    if (text == end) {
-        error("%s is not a valid bkm", text);
-    }
-    if (*end == '\0') return n;
-    switch (*end) {
-        case 'K':
-        case 'k':
-            return n * 1024;
-        case 'B':
-        case 'b':
-            return n * 512;
-        case 'M':
-        case 'm':
-            return n * 1024 * 1204;
-        default:
-            error("invalid bkm type %c", *end);
-    }
-    
-    /* shouldnt get here anyways */
-    return 0;
-}
-
-mode_t get_mode(const char* next) {
-    char* end = NULL;
-    mode_t mode = (mode_t)strtol(next, &end, 8);
-    if (!end) return 0;
-    while(isspace(*end)) end++;
-    if (*end != '\0' || (unsigned) mode < 010000) {
-        error("invalid file mode: `%s`", next);
-    }
-    return mode;
-}
-
-bool streql(const char* a, const char* b) {
-    int n = 0;
-
-    if (*a != *b) return false;
-    
-    while (true) {
-        if (*(a+n) != *(b+n)) return false;
-        if (*(a+n) == '\0') return true;
-        ++n;
-    }
-}
-
-bool prefix(const char* pre, const char* str) {
-    return strncmp(pre, str, strlen(pre)) == 0;
-}
-
-static char fs_types[5] = {'K','M','G','T','P'};
-void print_file_size(size_t bytes, char buf[5]) {
-    int index, n;
-    float next;
-
-    index = 0;
-    next = bytes;
-    
-    while (true) {
-        if (next < 1000) {
-            break;
-        }
-        
-        if (index == 5) {
-            printf("999P");
-            return;
-        }
-        
-        next /= 1024;
-        index++;
-    }
-    
-    n = snprintf(buf, 4, "%u", (int)(next+.5));
-    
-    if (index > 0) {
-        buf[n] = (fs_types[index - 1]);
-        n++;
-    }
-    
-    buf[n] = '\0';
-}
-
-static char* months[12] = 
-    {"Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"};
-void print_date_time(time_t mills, char buf[13]) {
-    struct tm* info;
-    int n;
-
-    info = localtime(&mills);
-    n = snprintf(buf, 5, "%s ", months[info->tm_mon]);
-
-    if (info->tm_mday < 10) {
-        buf[n] = ' ';
-        n++;
-    }
-
-    snprintf(buf + n, 13 - n, "%d %02d:%02d ", info->tm_mday, info->tm_hour, info->tm_sec);
-}
-
-void print_file_path(char* path) {
-    if (streql("-", path)) {
-        printf("(standard input)");
-    } else {
-        printf("%s", path);
-    }
-}
-
-#ifndef MAJOR
-#define MAJOR 0
-#endif
-
-#ifndef MINOR
-#define MINOR 0
-#endif
-
-#ifndef PATCH
-#define PATCH 0
-#endif
-
-void check_arg (char* arg) {
-    if (arg == NULL) {
-        error("expected another argument after option");
-    }
-}
-
-void global_help(void (*help)(void)) {
-    printf("LazySphere v%d.%d.%d multi-call binary.\n\n", MAJOR, MINOR, PATCH);
-    help();
-    exit(EXIT_SUCCESS);
-}
-
-void parse_help(int argc, char** argv, void (*help)(void)) {
-    int i;
-
-    if (argc < 1) return;
-
-    for (i = 0; i < argc; i++) {
-        if (!prefix("-", argv[i]) || streql("-", argv[i])) break;
-        if (help != NULL && streql("--help", argv[i])) global_help(help);
-    }
-}
-
-int parse_args(int argc, char** argv, void (*help)(void), int (*short_arg)(char, char*), int (*long_arg)(char*, char*)) {
-    int start, i, current;
-    char* next_arg;
-
-    if (argc < 1) return 0;
-
-    start = 0;
-    for (i = 0; i < argc; i++) {
-        
-        if (!prefix("-", argv[i]) || streql("-", argv[i])) break;
-        if (help != NULL && streql("--help", argv[i])) global_help(help);
-
-        if (i + 1 == argc) {
-            next_arg = NULL;
-        } else {
-            next_arg = argv[i+1];
-        }
-
-        current = i;
-
-        if (prefix("--", argv[i])) {
-            int r;
-
-            if (long_arg == NULL) {
-                goto exit;
-            }
-            
-            r = long_arg(argv[current], next_arg);
-            
-            if (r == ARG_USED) {
-                i++;
-                start++;
-            } else if (r == ARG_IGNORE) {
-                goto exit;
-            } else if (r == ARG_INVALID) {
-                error("invalid argument %s", argv[current]);
-            
-            }
-        } else {
-            size_t j;
-            int r;
-
-            if (short_arg == NULL) {
-                goto exit;
-            }
-
-            for (j = 1; j < strlen(argv[current]); j++) {
-                
-                r = short_arg(argv[current][j], next_arg);
-                
-                if (r == ARG_USED) {
-                    i++;
-                    start++;
-                } else if (r == ARG_IGNORE) {
-                    goto exit;
-                } else if (r == ARG_INVALID) {
-                    error("invalid argument -%c", argv[current][j]);
-                }
-            }
-        }
-
-        start++;
-    }
-
-exit:
-
-    return start;
-}
-
-int get_tty (void) {
-    int fd = open(_PATH_TTY, O_RDONLY);
-    if (fd < 0) error("failed to get tty: %s", strerror(errno));
-    return fd;
-}
-
-FILE* get_tty_stream(char* type) {
-    int fd = get_tty();
-    FILE* file = fdopen(fd, type);
-    if (file == NULL) {
-        error("failed to open tty stream: %s", strerror(errno));
-    }
-    return file;
-}
-
-static int push_path_buffer_b(char* buf, int* index, const char* string) {
-    int save, string_len;
-
-    save = *index;
-    if (*index > 1 || (*index == 1 && buf[0] != '/')) {
-        buf[(*index)++] = '/';
-    }
-
-    string_len = strlen(string);
-    memcpy(buf + *index, string, string_len + 1);
-    
-    *index += string_len;
-    
-    return save;
-}
-
-static void pop_path_buffer_b(char* buf, int* index, int i) {
-    *index = i;
-    buf[*index] = '\0';
-}
-
-static char path_buffer[PATH_MAX + 1];
-static int path_buffer_index = 0;
-
-char* get_path_buffer(void) {
-    return path_buffer;
-}
-
-int push_path_buffer(const char* string) {
-    return push_path_buffer_b(path_buffer, &path_buffer_index, string);
-}
-
-void pop_path_buffer(int i) {
-    pop_path_buffer_b(path_buffer, &path_buffer_index, i);
-}
-
-static char path_buffer_2[PATH_MAX + 1];
-static int path_buffer_index_2 = 0;
-
-char* get_path_buffer_2(void) {
-    return path_buffer_2;
-}
-
-int push_path_buffer_2(const char* string) {
-    return push_path_buffer_b(path_buffer_2, &path_buffer_index_2, string);
-}
-
-void pop_path_buffer_2(int i) {
-    pop_path_buffer_b(path_buffer_2, &path_buffer_index_2, i);
-}
-
-bool is_dot_dir(const char* path) {
-    return streql(path, ".") || streql(path, "..");
-}
diff --git a/src/util/shared.h b/src/util/shared.h
deleted file mode 100644
index a3e6a56..0000000
--- a/src/util/shared.h
+++ /dev/null
@@ -1,86 +0,0 @@
-#ifndef SHARED_H
-#define SHARED_H
-
-#include <stdint.h>
-#include <stdio.h>
-#include <time.h>
-#include <fcntl.h>
-
-#define ANSCII          "\x1b["
-#define NEXT            ";"
-
-#define RESET           "0"
-#define BOLD            "1"
-
-#define NORMAL          "3"
-#define BACKGROUND      "4"
-#define HIGHLIGHT       "9"
-
-#define BLACK           "0"
-#define RED             "1"
-#define GREEN           "2"
-#define YELLOW          "3"
-#define BLUE            "4"
-#define MAGENTA         "5"
-#define TURQUOISE       "6"
-#define WHITE           "7"
-
-#define COLOR           "m"
-
-typedef uint8_t bool;
-#define true 1
-#define false 0
-
-enum When {
-    YES,
-    NO,
-    AUTO
-};
-
-__attribute__ ((__format__(printf, 1, 2)))
-void error_s(const char* format, ...);
-
-__attribute__ ((__format__(printf, 1, 2)))
-void error(const char* format, ...);
-
-__attribute__ ((__format__(printf, 1, 2)))
-void output(const char* format, ...);
-
-FILE* get_file_s(const char* path, const char* type);
-FILE* get_file(const char* path, const char* type);
-long int get_number(const char* text);
-long int get_blkm(const char* text);
-mode_t get_mode(const char* next);
-
-bool streql(const char* a, const char* b);
-bool prefix(const char* pre, const char* str);
-
-void print_file_size(size_t bytes, char buf[5]);
-void print_date_time(time_t mills, char buf[13]);
-void print_file_path(char* path);
-
-#define UNUSED(x) (void)(x)
-#define ARG_UNUSED  0
-#define ARG_USED    1
-#define ARG_IGNORE  2
-#define ARG_INVALID 3
-
-void check_arg (char* arg);
-void global_help(void (*help)(void));
-void parse_help (int argc, char** argv, void (*help)(void));
-int parse_args (int argc, char** argv, void (*help)(void), int (*short_arg)(char, char*), int (*long_arg)(char*, char*));
-
-int get_tty(void);
-FILE* get_tty_stream(char* type);
-
-char* get_path_buffer(void);
-int push_path_buffer(const char* string);
-void pop_path_buffer(int i);
-
-char* get_path_buffer_2(void);
-int push_path_buffer_2(const char* string);
-void pop_path_buffer_2(int i);
-
-bool is_dot_dir(const char* path);
-
-#endif
diff --git a/src/util/stack.c b/src/util/stack.c
deleted file mode 100644
index acffc1a..0000000
--- a/src/util/stack.c
+++ /dev/null
@@ -1,43 +0,0 @@
-#include "stack.h"
-
-#include <stdint.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-
-void stack_init(struct Stack* stack, size_t size) {
-    stack->size = 0;
-    stack->capacity = size;
-    stack->data = malloc(size);
-}
-
-void stack_push(struct Stack* stack, void* data, size_t len) {
-    size_t new_size = stack->size + len;
-    if (new_size >= stack->capacity) {
-        stack->capacity = new_size * 2;
-        stack->data = realloc(stack->data, stack->capacity);
-    }
-    memcpy((uint8_t*)stack->data + stack->size, data, len);
-    stack->size += len;
-}
-
-void* stack_pop(struct Stack* stack, size_t len) {
-    if (stack->size < len) return NULL;
-    stack->size -= len;
-    return (uint8_t*)stack->data + stack->size;
-}
-
-void stack_free(struct Stack *stack) {
-    free(stack->data);
-}
-
-void stack_push_int(struct Stack *stack, int value) {
-    stack_push(stack, &value, sizeof(int));
-}
-
-bool stack_pop_int(struct Stack *stack, int* value) {
-    void* d = stack_pop(stack, sizeof(int));
-    if (d == NULL) return false;
-    *value = *(int*)(d);
-    return true;
-}
diff --git a/src/util/stack.h b/src/util/stack.h
deleted file mode 100644
index 8d6fc80..0000000
--- a/src/util/stack.h
+++ /dev/null
@@ -1,22 +0,0 @@
-#ifndef STACK_H
-#define STACK_H
-
-#include "shared.h"
-
-#include <stddef.h>
-
-struct Stack {
-    size_t size;
-    size_t capacity;
-    void* data;
-};
-
-void stack_init(struct Stack* stack, size_t size);
-void stack_push(struct Stack* stack, void* data, size_t len);
-void* stack_pop(struct Stack* stack, size_t len);
-void stack_free(struct Stack* stack);
-
-void stack_push_int(struct Stack* stack, int value); 
-bool stack_pop_int(struct Stack* stack, int* value);
-
-#endif