diff --git a/4coder_lib/4coder_string.h b/4coder_lib/4coder_string.h
index e45c653b..4ecec8c0 100644
--- a/4coder_lib/4coder_string.h
+++ b/4coder_lib/4coder_string.h
@@ -1,5 +1,5 @@
 /*
-4coder_string.h - Version 1.0.72
+4coder_string.h - Version 1.0.74
 no warranty implied; use at your own risk
 
 This software is in the public domain. Where that dedication is not
@@ -12,37 +12,6 @@ To use in C mode: #define FSTRING_C
 
 // TOP
 
-// 4tech_standard_preamble.h
-#if !defined(FTECH_INTEGERS)
-#define FTECH_INTEGERS
-#include <stdint.h>
-typedef int8_t i8_4tech;
-typedef int16_t i16_4tech;
-typedef int32_t i32_4tech;
-typedef int64_t i64_4tech;
-
-typedef uint8_t u8_4tech;
-typedef uint16_t u16_4tech;
-typedef uint32_t u32_4tech;
-typedef uint64_t u64_4tech;
-
-#if defined(FTECH_32_BIT)
-typedef u32_4tech umem_4tech;
-#else
-typedef u64_4tech umem_4tech;
-#endif
-
-typedef float f32_4tech;
-typedef double f64_4tech;
-
-typedef int8_t b8_4tech;
-typedef int32_t b32_4tech;
-#endif
-
-#if !defined(Assert)
-# define Assert(n) do{ if (!(n)) *(int*)0 = 0xA11E; }while(0)
-#endif
-// standard preamble end 
 
 
 #if !defined(FSTRING_LINK)
@@ -297,7 +266,7 @@ FSTRING_LINK b32_4tech             string_set_match(void *str_set, i32_4tech ite
 //
 
 #if !defined(FSTRING_GUARD)
-FSTRING_INLINE b32_4tech
+ FSTRING_INLINE b32_4tech
 char_is_slash(char c)
 {
     return (c == '\\' || c == '/');
@@ -305,7 +274,7 @@ char_is_slash(char c)
 #endif
 
 #if !defined(FSTRING_GUARD)
-FSTRING_INLINE b32_4tech
+ FSTRING_INLINE b32_4tech
 char_is_upper(char c)
 {
     return (c >= 'A' && c <= 'Z');
@@ -313,15 +282,15 @@ char_is_upper(char c)
 #endif
 
 #if !defined(FSTRING_GUARD)
-FSTRING_INLINE b32_4tech
+ FSTRING_INLINE b32_4tech
 char_is_upper_utf8(char c)
 {
-    return (c >= 'A' && c <= 'Z' || c >= 128);
+    return (c >= 'A' && c <= 'Z' || (unsigned char)c >= 128);
 }
 #endif
 
 #if !defined(FSTRING_GUARD)
-FSTRING_INLINE b32_4tech
+ FSTRING_INLINE b32_4tech
 char_is_lower(char c)
 {
     return (c >= 'a' && c <= 'z');
@@ -329,15 +298,15 @@ char_is_lower(char c)
 #endif
 
 #if !defined(FSTRING_GUARD)
-FSTRING_INLINE b32_4tech
+ FSTRING_INLINE b32_4tech
 char_is_lower_utf8(u8_4tech c)
 {
-    return (c >= 'a' && c <= 'z' || c >= 128);
+    return (c >= 'a' && c <= 'z' || (unsigned char)c >= 128);
 }
 #endif
 
 #if !defined(FSTRING_GUARD)
-FSTRING_INLINE char
+ FSTRING_INLINE char
 char_to_upper(char c)
 {
     return (c >= 'a' && c <= 'z') ? c + (char)('A' - 'a') : c;
@@ -345,7 +314,7 @@ char_to_upper(char c)
 #endif
 
 #if !defined(FSTRING_GUARD)
-FSTRING_INLINE char
+ FSTRING_INLINE char
 char_to_lower(char c)
 {
     return (c >= 'A' && c <= 'Z') ? c - (char)('A' - 'a') : c;
@@ -353,7 +322,7 @@ char_to_lower(char c)
 #endif
 
 #if !defined(FSTRING_GUARD)
-FSTRING_INLINE b32_4tech
+ FSTRING_INLINE b32_4tech
 char_is_whitespace(char c)
 {
     return (c == ' ' || c == '\n' || c == '\r' || c == '\t');
@@ -361,7 +330,7 @@ char_is_whitespace(char c)
 #endif
 
 #if !defined(FSTRING_GUARD)
-FSTRING_INLINE b32_4tech
+ FSTRING_INLINE b32_4tech
 char_is_alpha_numeric(char c)
 {
     return (c >= 'a' && c <= 'z' || c >= 'A' && c <= 'Z' || c >= '0' && c <= '9' || c == '_');
@@ -369,15 +338,15 @@ char_is_alpha_numeric(char c)
 #endif
 
 #if !defined(FSTRING_GUARD)
-FSTRING_INLINE b32_4tech
+ FSTRING_INLINE b32_4tech
 char_is_alpha_numeric_utf8(u8_4tech c)
 {
-    return (c >= 'a' && c <= 'z' || c >= 'A' && c <= 'Z' || c >= '0' && c <= '9' || c == '_' || c >= 128);
+    return (c >= 'a' && c <= 'z' || c >= 'A' && c <= 'Z' || c >= '0' && c <= '9' || c == '_' || (unsigned char)c >= 128);
 }
 #endif
 
 #if !defined(FSTRING_GUARD)
-FSTRING_INLINE b32_4tech
+ FSTRING_INLINE b32_4tech
 char_is_alpha_numeric_true(char c)
 {
     return (c >= 'a' && c <= 'z' || c >= 'A' && c <= 'Z' || c >= '0' && c <= '9');
@@ -385,15 +354,15 @@ char_is_alpha_numeric_true(char c)
 #endif
 
 #if !defined(FSTRING_GUARD)
-FSTRING_INLINE b32_4tech
+ FSTRING_INLINE b32_4tech
 char_is_alpha_numeric_true_utf8(u8_4tech c)
 {
-    return (c >= 'a' && c <= 'z' || c >= 'A' && c <= 'Z' || c >= '0' && c <= '9' || c >= 128);
+    return (c >= 'a' && c <= 'z' || c >= 'A' && c <= 'Z' || c >= '0' && c <= '9' || (unsigned char)c >= 128);
 }
 #endif
 
 #if !defined(FSTRING_GUARD)
-FSTRING_INLINE b32_4tech
+ FSTRING_INLINE b32_4tech
 char_is_alpha(char c)
 {
     return (c >= 'a' && c <= 'z' || c >= 'A' && c <= 'Z' || c == '_');
@@ -401,15 +370,15 @@ char_is_alpha(char c)
 #endif
 
 #if !defined(FSTRING_GUARD)
-FSTRING_INLINE b32_4tech
+ FSTRING_INLINE b32_4tech
 char_is_alpha_utf8(u8_4tech c)
 {
-    return (c >= 'a' && c <= 'z' || c >= 'A' && c <= 'Z' || c == '_' || c >= 128);
+    return (c >= 'a' && c <= 'z' || c >= 'A' && c <= 'Z' || c == '_' || (unsigned char)c >= 128);
 }
 #endif
 
 #if !defined(FSTRING_GUARD)
-FSTRING_INLINE b32_4tech
+ FSTRING_INLINE b32_4tech
 char_is_alpha_true(char c)
 {
     return (c >= 'a' && c <= 'z' || c >= 'A' && c <= 'Z');
@@ -417,15 +386,15 @@ char_is_alpha_true(char c)
 #endif
 
 #if !defined(FSTRING_GUARD)
-FSTRING_INLINE b32_4tech
+ FSTRING_INLINE b32_4tech
 char_is_alpha_true_utf8(u8_4tech c)
 {
-    return (c >= 'a' && c <= 'z' || c >= 'A' && c <= 'Z' || c >= 128);
+    return (c >= 'a' && c <= 'z' || c >= 'A' && c <= 'Z' || (unsigned char)c >= 128);
 }
 #endif
 
 #if !defined(FSTRING_GUARD)
-FSTRING_INLINE b32_4tech
+ FSTRING_INLINE b32_4tech
 char_is_hex(char c)
 {
     return (c >= '0' && c <= '9' || c >= 'A' && c <= 'F' || c >= 'a' && c <= 'f');
@@ -433,15 +402,15 @@ char_is_hex(char c)
 #endif
 
 #if !defined(FSTRING_GUARD)
-FSTRING_INLINE b32_4tech
+ FSTRING_INLINE b32_4tech
 char_is_hex_utf8(u8_4tech c)
 {
-    return (c >= '0' && c <= '9' || c >= 'A' && c <= 'F' || c >= 'a' && c <= 'f' || c >= 128);
+    return (c >= '0' && c <= '9' || c >= 'A' && c <= 'F' || c >= 'a' && c <= 'f' || (unsigned char)c >= 128);
 }
 #endif
 
 #if !defined(FSTRING_GUARD)
-FSTRING_INLINE b32_4tech
+ FSTRING_INLINE b32_4tech
 char_is_numeric(char c)
 {
     return (c >= '0' && c <= '9');
@@ -449,10 +418,10 @@ char_is_numeric(char c)
 #endif
 
 #if !defined(FSTRING_GUARD)
-FSTRING_INLINE b32_4tech
+ FSTRING_INLINE b32_4tech
 char_is_numeric_utf8(u8_4tech c)
 {
-    return (c >= '0' && c <= '9' || c >= 128);
+    return (c >= '0' && c <= '9' || (unsigned char)c >= 128);
 }
 #endif
 
@@ -463,7 +432,7 @@ char_is_numeric_utf8(u8_4tech c)
 
 
 #if !defined(FSTRING_GUARD)
-FSTRING_INLINE String
+ FSTRING_INLINE String
 make_string_cap(void *str, i32_4tech size, i32_4tech mem_size){
     String result;
     result.str = (char*)str;
@@ -474,7 +443,7 @@ make_string_cap(void *str, i32_4tech size, i32_4tech mem_size){
 #endif
 
 #if !defined(FSTRING_GUARD)
-FSTRING_INLINE String
+ FSTRING_INLINE String
 make_string(void *str, i32_4tech size){
     String result;
     result.str = (char*)str;
@@ -485,7 +454,7 @@ make_string(void *str, i32_4tech size){
 #endif
 
 #if defined(FSTRING_IMPLEMENTATION)
-FSTRING_LINK i32_4tech
+ FSTRING_LINK i32_4tech
 str_size(char *str)
 {
     i32_4tech i = 0;
@@ -495,7 +464,7 @@ str_size(char *str)
 #endif
 
 #if !defined(FSTRING_GUARD)
-FSTRING_INLINE String
+ FSTRING_INLINE String
 make_string_slowly(void *str)
 {
     String result;
@@ -508,7 +477,7 @@ make_string_slowly(void *str)
 
 
 #if !defined(FSTRING_GUARD)
-FSTRING_INLINE String
+ FSTRING_INLINE String
 substr_tail(String str, i32_4tech start)
 {
     String result;
@@ -520,7 +489,7 @@ substr_tail(String str, i32_4tech start)
 #endif
 
 #if !defined(FSTRING_GUARD)
-FSTRING_INLINE String
+ FSTRING_INLINE String
 substr(String str, i32_4tech start, i32_4tech size)
 {
     String result;
@@ -535,7 +504,7 @@ substr(String str, i32_4tech start, i32_4tech size)
 #endif
 
 #if defined(FSTRING_IMPLEMENTATION)
-FSTRING_LINK String
+ FSTRING_LINK String
 skip_whitespace(String str)
 {
     String result = {0};
@@ -548,7 +517,7 @@ skip_whitespace(String str)
 
 
 #if defined(FSTRING_IMPLEMENTATION)
-FSTRING_LINK String
+ FSTRING_LINK String
 skip_whitespace_measure(String str, i32_4tech *skip_length)
 {
     String result = {0};
@@ -561,7 +530,7 @@ skip_whitespace_measure(String str, i32_4tech *skip_length)
 #endif
 
 #if defined(FSTRING_IMPLEMENTATION)
-FSTRING_LINK String
+ FSTRING_LINK String
 chop_whitespace(String str)
 {
     String result = {0};
@@ -573,7 +542,7 @@ chop_whitespace(String str)
 #endif
 
 #if defined(FSTRING_IMPLEMENTATION)
-FSTRING_LINK String
+ FSTRING_LINK String
 skip_chop_whitespace(String str)
 {
     str = skip_whitespace(str);
@@ -584,7 +553,7 @@ skip_chop_whitespace(String str)
 
 
 #if defined(FSTRING_IMPLEMENTATION)
-FSTRING_LINK String
+ FSTRING_LINK String
 skip_chop_whitespace_measure(String str, i32_4tech *skip_length)
 {
     str = skip_whitespace_measure(str, skip_length);
@@ -594,7 +563,7 @@ skip_chop_whitespace_measure(String str, i32_4tech *skip_length)
 #endif
 
 #if !defined(FSTRING_GUARD)
-FSTRING_INLINE String
+ FSTRING_INLINE String
 tailstr(String str)
 {
     String result;
@@ -612,7 +581,7 @@ tailstr(String str)
 
 
 #if defined(FSTRING_IMPLEMENTATION)
-FSTRING_LINK b32_4tech
+ FSTRING_LINK b32_4tech
 match_cc(char *a, char *b){
     for (i32_4tech i = 0;; ++i){
         if (a[i] != b[i]){
@@ -627,7 +596,7 @@ match_cc(char *a, char *b){
 
 
 #if defined(FSTRING_IMPLEMENTATION)
-FSTRING_LINK b32_4tech
+ FSTRING_LINK b32_4tech
 match_sc(String a, char *b){
     i32_4tech i = 0;
     for (; i < a.size; ++i){
@@ -644,7 +613,7 @@ match_sc(String a, char *b){
 
 
 #if !defined(FSTRING_GUARD)
-FSTRING_INLINE b32_4tech
+ FSTRING_INLINE b32_4tech
 match_cs(char *a, String b){
     return(match_sc(b,a));
 }
@@ -652,7 +621,7 @@ match_cs(char *a, String b){
 
 
 #if defined(FSTRING_IMPLEMENTATION)
-FSTRING_LINK b32_4tech
+ FSTRING_LINK b32_4tech
 match_ss(String a, String b){
     if (a.size != b.size){
         return 0;
@@ -668,7 +637,7 @@ match_ss(String a, String b){
 
 
 #if defined(FSTRING_IMPLEMENTATION)
-FSTRING_LINK b32_4tech
+ FSTRING_LINK b32_4tech
 match_part_ccl(char *a, char *b, i32_4tech *len){
     i32_4tech i;
     for (i = 0; b[i] != 0; ++i){
@@ -683,7 +652,7 @@ match_part_ccl(char *a, char *b, i32_4tech *len){
 
 
 #if defined(FSTRING_IMPLEMENTATION)
-FSTRING_LINK b32_4tech
+ FSTRING_LINK b32_4tech
 match_part_scl(String a, char *b, i32_4tech *len){
     i32_4tech i;
     for (i = 0; b[i] != 0; ++i){
@@ -698,7 +667,7 @@ match_part_scl(String a, char *b, i32_4tech *len){
 
 
 #if !defined(FSTRING_GUARD)
-FSTRING_INLINE b32_4tech
+ FSTRING_INLINE b32_4tech
 match_part_cc(char *a, char *b){
     i32_4tech x;
     return match_part_ccl(a,b,&x);
@@ -707,7 +676,7 @@ match_part_cc(char *a, char *b){
 
 
 #if !defined(FSTRING_GUARD)
-FSTRING_INLINE b32_4tech
+ FSTRING_INLINE b32_4tech
 match_part_sc(String a, char *b){
     i32_4tech x;
     return match_part_scl(a,b,&x);
@@ -716,7 +685,7 @@ match_part_sc(String a, char *b){
 
 
 #if defined(FSTRING_IMPLEMENTATION)
-FSTRING_LINK b32_4tech
+ FSTRING_LINK b32_4tech
 match_part_cs(char *a, String b){
     for (i32_4tech i = 0; i != b.size; ++i){
         if (a[i] != b.str[i]){
@@ -729,7 +698,7 @@ match_part_cs(char *a, String b){
 
 
 #if defined(FSTRING_IMPLEMENTATION)
-FSTRING_LINK b32_4tech
+ FSTRING_LINK b32_4tech
 match_part_ss(String a, String b){
     if (a.size < b.size){
         return 0;
@@ -745,7 +714,7 @@ match_part_ss(String a, String b){
 
 
 #if defined(FSTRING_IMPLEMENTATION)
-FSTRING_LINK b32_4tech
+ FSTRING_LINK b32_4tech
 match_insensitive_cc(char *a, char *b){
     for (i32_4tech i = 0;; ++i){
         if (char_to_upper(a[i]) !=
@@ -761,7 +730,7 @@ match_insensitive_cc(char *a, char *b){
 
 
 #if defined(FSTRING_IMPLEMENTATION)
-FSTRING_LINK b32_4tech
+ FSTRING_LINK b32_4tech
 match_insensitive_sc(String a, char *b){
     i32_4tech i = 0;
     for (; i < a.size; ++i){
@@ -779,7 +748,7 @@ match_insensitive_sc(String a, char *b){
 
 
 #if !defined(FSTRING_GUARD)
-FSTRING_INLINE b32_4tech
+ FSTRING_INLINE b32_4tech
 match_insensitive_cs(char *a, String b){
     return match_insensitive_sc(b,a);
 }
@@ -787,7 +756,7 @@ match_insensitive_cs(char *a, String b){
 
 
 #if defined(FSTRING_IMPLEMENTATION)
-FSTRING_LINK b32_4tech
+ FSTRING_LINK b32_4tech
 match_insensitive_ss(String a, String b){
     if (a.size != b.size){
         return 0;
@@ -804,7 +773,7 @@ match_insensitive_ss(String a, String b){
 
 
 #if defined(FSTRING_IMPLEMENTATION)
-FSTRING_LINK b32_4tech
+ FSTRING_LINK b32_4tech
 match_part_insensitive_ccl(char *a, char *b, i32_4tech *len){
     i32_4tech i;
     for (i = 0; b[i] != 0; ++i){
@@ -819,7 +788,7 @@ match_part_insensitive_ccl(char *a, char *b, i32_4tech *len){
 
 
 #if defined(FSTRING_IMPLEMENTATION)
-FSTRING_LINK b32_4tech
+ FSTRING_LINK b32_4tech
 match_part_insensitive_scl(String a, char *b, i32_4tech *len){
     i32_4tech i;
     for (i = 0; b[i] != 0; ++i){
@@ -835,7 +804,7 @@ match_part_insensitive_scl(String a, char *b, i32_4tech *len){
 
 
 #if !defined(FSTRING_GUARD)
-FSTRING_INLINE b32_4tech
+ FSTRING_INLINE b32_4tech
 match_part_insensitive_cc(char *a, char *b){
     i32_4tech x;
     return match_part_insensitive_ccl(a,b,&x);
@@ -844,7 +813,7 @@ match_part_insensitive_cc(char *a, char *b){
 
 
 #if !defined(FSTRING_GUARD)
-FSTRING_INLINE b32_4tech
+ FSTRING_INLINE b32_4tech
 match_part_insensitive_sc(String a, char *b){
     i32_4tech x;
     return match_part_insensitive_scl(a,b,&x);
@@ -853,7 +822,7 @@ match_part_insensitive_sc(String a, char *b){
 
 
 #if defined(FSTRING_IMPLEMENTATION)
-FSTRING_LINK b32_4tech
+ FSTRING_LINK b32_4tech
 match_part_insensitive_cs(char *a, String b){
     for (i32_4tech i = 0; i != b.size; ++i){
         if (char_to_upper(a[i]) != char_to_upper(b.str[i])){
@@ -866,7 +835,7 @@ match_part_insensitive_cs(char *a, String b){
 
 
 #if defined(FSTRING_IMPLEMENTATION)
-FSTRING_LINK b32_4tech
+ FSTRING_LINK b32_4tech
 match_part_insensitive_ss(String a, String b){
     if (a.size < b.size){
         return(0);
@@ -882,7 +851,7 @@ match_part_insensitive_ss(String a, String b){
 
 
 #if defined(FSTRING_IMPLEMENTATION)
-FSTRING_LINK i32_4tech
+ FSTRING_LINK i32_4tech
 compare_cc(char *a, char *b){
     i32_4tech i = 0, r = 0;
     while (a[i] == b[i] && a[i] != 0){
@@ -895,7 +864,7 @@ compare_cc(char *a, char *b){
 
 
 #if defined(FSTRING_IMPLEMENTATION)
-FSTRING_LINK i32_4tech
+ FSTRING_LINK i32_4tech
 compare_sc(String a, char *b){
     i32_4tech i = 0, r = 0;
     while (i < a.size && a.str[i] == b[i]){
@@ -918,7 +887,7 @@ compare_sc(String a, char *b){
 
 
 #if !defined(FSTRING_GUARD)
-FSTRING_INLINE i32_4tech
+ FSTRING_INLINE i32_4tech
 compare_cs(char *a, String b){
     i32_4tech r = -compare_sc(b,a);
     return(r);
@@ -927,7 +896,7 @@ compare_cs(char *a, String b){
 
 
 #if defined(FSTRING_IMPLEMENTATION)
-FSTRING_LINK i32_4tech
+ FSTRING_LINK i32_4tech
 compare_ss(String a, String b){
     i32_4tech i = 0, r = 0;
     i32_4tech m = a.size;
@@ -955,7 +924,7 @@ compare_ss(String a, String b){
 
 
 #if defined(FSTRING_IMPLEMENTATION)
-FSTRING_LINK i32_4tech
+ FSTRING_LINK i32_4tech
 find_c_char(char *str, i32_4tech start, char character){
     i32_4tech i = start;
     while (str[i] != character && str[i] != 0) ++i;
@@ -965,7 +934,7 @@ find_c_char(char *str, i32_4tech start, char character){
 
 
 #if defined(FSTRING_IMPLEMENTATION)
-FSTRING_LINK i32_4tech
+ FSTRING_LINK i32_4tech
 find_s_char(String str, i32_4tech start, char character){
     i32_4tech i = start;
     while (i < str.size && str.str[i] != character) ++i;
@@ -975,7 +944,7 @@ find_s_char(String str, i32_4tech start, char character){
 
 
 #if defined(FSTRING_IMPLEMENTATION)
-FSTRING_LINK i32_4tech
+ FSTRING_LINK i32_4tech
 rfind_s_char(String str, i32_4tech start, char character){
     i32_4tech i = start;
     while (i >= 0 && str.str[i] != character) --i;
@@ -985,7 +954,7 @@ rfind_s_char(String str, i32_4tech start, char character){
 
 
 #if defined(FSTRING_IMPLEMENTATION)
-FSTRING_LINK i32_4tech
+ FSTRING_LINK i32_4tech
 find_c_chars(char *str, i32_4tech start, char *characters){
     i32_4tech i = start, j;
     while (str[i] != 0){
@@ -1002,7 +971,7 @@ find_c_chars(char *str, i32_4tech start, char *characters){
 
 
 #if defined(FSTRING_IMPLEMENTATION)
-FSTRING_LINK i32_4tech
+ FSTRING_LINK i32_4tech
 find_s_chars(String str, i32_4tech start, char *characters){
     i32_4tech i = start, j;
     while (i < str.size){
@@ -1019,7 +988,7 @@ find_s_chars(String str, i32_4tech start, char *characters){
 
 
 #if defined(FSTRING_IMPLEMENTATION)
-FSTRING_LINK i32_4tech
+ FSTRING_LINK i32_4tech
 find_substr_c(char *str, i32_4tech start, String seek){
     i32_4tech i, j, k;
     b32_4tech hit;
@@ -1048,7 +1017,7 @@ find_substr_c(char *str, i32_4tech start, String seek){
 
 
 #if defined(FSTRING_IMPLEMENTATION)
-FSTRING_LINK i32_4tech
+ FSTRING_LINK i32_4tech
 find_substr_s(String str, i32_4tech start, String seek){
     i32_4tech stop_at, i, j, k;
     b32_4tech hit;
@@ -1077,7 +1046,7 @@ find_substr_s(String str, i32_4tech start, String seek){
 
 
 #if defined(FSTRING_IMPLEMENTATION)
-FSTRING_LINK i32_4tech
+ FSTRING_LINK i32_4tech
 rfind_substr_s(String str, i32_4tech start, String seek){
     i32_4tech i, j, k;
     b32_4tech hit;
@@ -1108,7 +1077,7 @@ rfind_substr_s(String str, i32_4tech start, String seek){
 
 
 #if defined(FSTRING_IMPLEMENTATION)
-FSTRING_LINK i32_4tech
+ FSTRING_LINK i32_4tech
 find_substr_insensitive_c(char *str, i32_4tech start, String seek){
     i32_4tech i, j, k;
     b32_4tech hit;
@@ -1142,7 +1111,7 @@ find_substr_insensitive_c(char *str, i32_4tech start, String seek){
 
 
 #if defined(FSTRING_IMPLEMENTATION)
-FSTRING_LINK i32_4tech
+ FSTRING_LINK i32_4tech
 find_substr_insensitive_s(String str, i32_4tech start, String seek){
     i32_4tech i, j, k;
     i32_4tech stop_at;
@@ -1178,7 +1147,7 @@ find_substr_insensitive_s(String str, i32_4tech start, String seek){
 
 
 #if !defined(FSTRING_GUARD)
-FSTRING_INLINE b32_4tech
+ FSTRING_INLINE b32_4tech
 has_substr_c(char *s, String seek){
     return (s[find_substr_c(s, 0, seek)] != 0);
 }
@@ -1186,7 +1155,7 @@ has_substr_c(char *s, String seek){
 
 
 #if !defined(FSTRING_GUARD)
-FSTRING_INLINE b32_4tech
+ FSTRING_INLINE b32_4tech
 has_substr_s(String s, String seek){
     return (find_substr_s(s, 0, seek) < s.size);
 }
@@ -1194,7 +1163,7 @@ has_substr_s(String s, String seek){
 
 
 #if !defined(FSTRING_GUARD)
-FSTRING_INLINE b32_4tech
+ FSTRING_INLINE b32_4tech
 has_substr_insensitive_c(char *s, String seek){
     return (s[find_substr_insensitive_c(s, 0, seek)] != 0);
 }
@@ -1202,7 +1171,7 @@ has_substr_insensitive_c(char *s, String seek){
 
 
 #if !defined(FSTRING_GUARD)
-FSTRING_INLINE b32_4tech
+ FSTRING_INLINE b32_4tech
 has_substr_insensitive_s(String s, String seek){
     return (find_substr_insensitive_s(s, 0, seek) < s.size);
 }
@@ -1214,7 +1183,7 @@ has_substr_insensitive_s(String s, String seek){
 
 
 #if defined(FSTRING_IMPLEMENTATION)
-FSTRING_LINK i32_4tech
+ FSTRING_LINK i32_4tech
 copy_fast_unsafe_cc(char *dest, char *src){
     char *start = dest;
     while (*src != 0){
@@ -1228,7 +1197,7 @@ copy_fast_unsafe_cc(char *dest, char *src){
 
 
 #if defined(FSTRING_IMPLEMENTATION)
-FSTRING_LINK i32_4tech
+ FSTRING_LINK i32_4tech
 copy_fast_unsafe_cs(char *dest, String src){
     i32_4tech i = 0;
     while (i != src.size){
@@ -1241,7 +1210,7 @@ copy_fast_unsafe_cs(char *dest, String src){
 
 
 #if defined(FSTRING_IMPLEMENTATION)
-FSTRING_LINK b32_4tech
+ FSTRING_LINK b32_4tech
 copy_checked_ss(String *dest, String src){
     char *dest_str;
     i32_4tech i;
@@ -1259,7 +1228,7 @@ copy_checked_ss(String *dest, String src){
 
 
 #if defined(FSTRING_IMPLEMENTATION)
-FSTRING_LINK b32_4tech
+ FSTRING_LINK b32_4tech
 copy_checked_cs(char *dest, i32_4tech dest_cap, String src){
     i32_4tech i;
     if (dest_cap < src.size){
@@ -1274,7 +1243,7 @@ copy_checked_cs(char *dest, i32_4tech dest_cap, String src){
 
 
 #if defined(FSTRING_IMPLEMENTATION)
-FSTRING_LINK b32_4tech
+ FSTRING_LINK b32_4tech
 copy_partial_sc(String *dest, char *src){
     i32_4tech i = 0;
     i32_4tech memory_size = dest->memory_size;
@@ -1293,7 +1262,7 @@ copy_partial_sc(String *dest, char *src){
 
 
 #if defined(FSTRING_IMPLEMENTATION)
-FSTRING_LINK b32_4tech
+ FSTRING_LINK b32_4tech
 copy_partial_ss(String *dest, String src){
     char *dest_str = dest->str;
     i32_4tech memory_size = dest->memory_size;
@@ -1312,7 +1281,7 @@ copy_partial_ss(String *dest, String src){
 
 
 #if defined(FSTRING_IMPLEMENTATION)
-FSTRING_LINK b32_4tech
+ FSTRING_LINK b32_4tech
 copy_partial_cs(char *dest, i32_4tech dest_cap, String src){
     b32_4tech result = 0;
     i32_4tech copy_size = dest_cap;
@@ -1330,7 +1299,7 @@ copy_partial_cs(char *dest, i32_4tech dest_cap, String src){
 
 
 #if !defined(FSTRING_GUARD)
-FSTRING_INLINE i32_4tech
+ FSTRING_INLINE i32_4tech
 copy_cc(char *dest, char *src){
     return copy_fast_unsafe_cc(dest, src);
 }
@@ -1338,7 +1307,7 @@ copy_cc(char *dest, char *src){
 
 
 #if !defined(FSTRING_GUARD)
-FSTRING_INLINE void
+ FSTRING_INLINE void
 copy_ss(String *dest, String src){
     copy_checked_ss(dest, src);
 }
@@ -1346,7 +1315,7 @@ copy_ss(String *dest, String src){
 
 
 #if !defined(FSTRING_GUARD)
-FSTRING_INLINE void
+ FSTRING_INLINE void
 copy_sc(String *dest, char *src){
     copy_partial_sc(dest, src);
 }
@@ -1354,7 +1323,7 @@ copy_sc(String *dest, char *src){
 
 
 #if defined(FSTRING_IMPLEMENTATION)
-FSTRING_LINK b32_4tech
+ FSTRING_LINK b32_4tech
 append_checked_ss(String *dest, String src){
     String end;
     end = tailstr(*dest);
@@ -1368,7 +1337,7 @@ append_checked_ss(String *dest, String src){
 
 
 #if defined(FSTRING_IMPLEMENTATION)
-FSTRING_LINK b32_4tech
+ FSTRING_LINK b32_4tech
 append_partial_sc(String *dest, char *src){
     String end = tailstr(*dest);
     b32_4tech result = copy_partial_sc(&end, src);
@@ -1379,7 +1348,7 @@ append_partial_sc(String *dest, char *src){
 
 
 #if defined(FSTRING_IMPLEMENTATION)
-FSTRING_LINK b32_4tech
+ FSTRING_LINK b32_4tech
 append_partial_ss(String *dest, String src){
     String end = tailstr(*dest);
     b32_4tech result = copy_partial_ss(&end, src);
@@ -1390,7 +1359,7 @@ append_partial_ss(String *dest, String src){
 
 
 #if defined(FSTRING_IMPLEMENTATION)
-FSTRING_LINK b32_4tech
+ FSTRING_LINK b32_4tech
 append_s_char(String *dest, char c){
     b32_4tech result = 0;
     if (dest->size < dest->memory_size){
@@ -1403,7 +1372,7 @@ append_s_char(String *dest, char c){
 
 
 #if !defined(FSTRING_GUARD)
-FSTRING_INLINE b32_4tech
+ FSTRING_INLINE b32_4tech
 append_ss(String *dest, String src){
     return append_partial_ss(dest, src);
 }
@@ -1411,14 +1380,14 @@ append_ss(String *dest, String src){
 
 
 #if !defined(FSTRING_GUARD)
-FSTRING_INLINE b32_4tech
+ FSTRING_INLINE b32_4tech
 append_sc(String *dest, char *src){
     return append_partial_sc(dest, src);
 }
 #endif
 
 #if defined(FSTRING_IMPLEMENTATION)
-FSTRING_LINK b32_4tech
+ FSTRING_LINK b32_4tech
 terminate_with_null(String *str){
     b32_4tech result = 0;
     if (str->size < str->memory_size){
@@ -1430,7 +1399,7 @@ terminate_with_null(String *str){
 #endif
 
 #if defined(FSTRING_IMPLEMENTATION)
-FSTRING_LINK b32_4tech
+ FSTRING_LINK b32_4tech
 append_padding(String *dest, char c, i32_4tech target_size){
     b32_4tech result = 1;
     i32_4tech offset = target_size - dest->size;
@@ -1453,7 +1422,7 @@ append_padding(String *dest, char c, i32_4tech target_size){
 //
 
 #if defined(FSTRING_IMPLEMENTATION)
-FSTRING_LINK void
+ FSTRING_LINK void
 replace_char(String *str, char replace, char with){
     char *s = str->str;
     i32_4tech i = 0;
@@ -1465,7 +1434,7 @@ replace_char(String *str, char replace, char with){
 
 
 #if defined(FSTRING_IMPLEMENTATION)
-FSTRING_LINK void
+ FSTRING_LINK void
 to_lower_cc(char *src, char *dst){
     for (; *src != 0; ++src){
         *dst++ = char_to_lower(*src);
@@ -1476,7 +1445,7 @@ to_lower_cc(char *src, char *dst){
 
 
 #if defined(FSTRING_IMPLEMENTATION)
-FSTRING_LINK void
+ FSTRING_LINK void
 to_lower_ss(String *dst, String src){
     i32_4tech i = 0;
     i32_4tech size = src.size;
@@ -1494,7 +1463,7 @@ to_lower_ss(String *dst, String src){
 
 
 #if defined(FSTRING_IMPLEMENTATION)
-FSTRING_LINK void
+ FSTRING_LINK void
 to_lower_s(String *str){
     i32_4tech i = 0;
     i32_4tech size = str->size;
@@ -1507,7 +1476,7 @@ to_lower_s(String *str){
 
 
 #if defined(FSTRING_IMPLEMENTATION)
-FSTRING_LINK void
+ FSTRING_LINK void
 to_upper_cc(char *src, char *dst){
     for (; *src != 0; ++src){
         *dst++ = char_to_upper(*src);
@@ -1518,7 +1487,7 @@ to_upper_cc(char *src, char *dst){
 
 
 #if defined(FSTRING_IMPLEMENTATION)
-FSTRING_LINK void
+ FSTRING_LINK void
 to_upper_ss(String *dst, String src){
     i32_4tech i = 0;
     i32_4tech size = src.size;
@@ -1536,7 +1505,7 @@ to_upper_ss(String *dst, String src){
 
 
 #if defined(FSTRING_IMPLEMENTATION)
-FSTRING_LINK void
+ FSTRING_LINK void
 to_upper_s(String *str){
     i32_4tech i = 0;
     i32_4tech size = str->size;
@@ -1549,7 +1518,7 @@ to_upper_s(String *str){
 
 
 #if defined(FSTRING_IMPLEMENTATION)
-FSTRING_LINK void
+ FSTRING_LINK void
 to_camel_cc(char *src, char *dst){
     char *c, ch;
     i32_4tech is_first = 1;
@@ -1579,7 +1548,7 @@ to_camel_cc(char *src, char *dst){
 //
 
 #if defined(FSTRING_IMPLEMENTATION)
-FSTRING_LINK i32_4tech
+ FSTRING_LINK i32_4tech
 int_to_str_size(i32_4tech x){
     i32_4tech size = 1;
     if (x < 0){
@@ -1595,7 +1564,7 @@ int_to_str_size(i32_4tech x){
 #endif
 
 #if defined(FSTRING_IMPLEMENTATION)
-FSTRING_LINK b32_4tech
+ FSTRING_LINK b32_4tech
 int_to_str(String *dest, i32_4tech x){
     b32_4tech result = 1;
     char *str = dest->str;
@@ -1642,7 +1611,7 @@ int_to_str(String *dest, i32_4tech x){
 #endif
 
 #if defined(FSTRING_IMPLEMENTATION)
-FSTRING_LINK b32_4tech
+ FSTRING_LINK b32_4tech
 append_int_to_str(String *dest, i32_4tech x){
     String last_part = tailstr(*dest);
     b32_4tech result = int_to_str(&last_part, x);
@@ -1654,26 +1623,20 @@ append_int_to_str(String *dest, i32_4tech x){
 #endif
 
 #if defined(FSTRING_IMPLEMENTATION)
-FSTRING_LINK i32_4tech
+ FSTRING_LINK i32_4tech
 u64_to_str_size(uint64_t x){
-    i32_4tech size;
-    if (x < 0){
-        size = 0;
-    }
-    else{
-        size = 1;
+    i32_4tech size = 1;
+    x /= 10;
+    while (x != 0){
         x /= 10;
-        while (x != 0){
-            x /= 10;
-            ++size;
-        }
+        ++size;
     }
     return(size);
 }
 #endif
 
 #if defined(FSTRING_IMPLEMENTATION)
-FSTRING_LINK b32_4tech
+ FSTRING_LINK b32_4tech
 u64_to_str(String *dest, uint64_t x){
     b32_4tech result = 1;
     char *str = dest->str;
@@ -1712,7 +1675,7 @@ u64_to_str(String *dest, uint64_t x){
 #endif
 
 #if defined(FSTRING_IMPLEMENTATION)
-FSTRING_LINK b32_4tech
+ FSTRING_LINK b32_4tech
 append_u64_to_str(String *dest, uint64_t x){
     String last_part = tailstr(*dest);
     b32_4tech result = u64_to_str(&last_part, x);
@@ -1747,7 +1710,7 @@ get_float_vars(float x){
 #endif
 
 #if defined(FSTRING_IMPLEMENTATION)
-FSTRING_LINK i32_4tech
+ FSTRING_LINK i32_4tech
 float_to_str_size(float x){
     Float_To_Str_Variables vars = get_float_vars(x);
     i32_4tech size = vars.negative + int_to_str_size(vars.int_part) + 1 + int_to_str_size(vars.dec_part);
@@ -1756,7 +1719,7 @@ float_to_str_size(float x){
 #endif
 
 #if defined(FSTRING_IMPLEMENTATION)
-FSTRING_LINK b32_4tech
+ FSTRING_LINK b32_4tech
 append_float_to_str(String *dest, float x){
     b32_4tech result = 1;
     Float_To_Str_Variables vars = get_float_vars(x);
@@ -1774,7 +1737,7 @@ append_float_to_str(String *dest, float x){
 #endif
 
 #if defined(FSTRING_IMPLEMENTATION)
-FSTRING_LINK b32_4tech
+ FSTRING_LINK b32_4tech
 float_to_str(String *dest, float x){
     b32_4tech result = 1;
     dest->size = 0;
@@ -1785,7 +1748,7 @@ float_to_str(String *dest, float x){
 
 
 #if defined(FSTRING_IMPLEMENTATION)
-FSTRING_LINK i32_4tech
+ FSTRING_LINK i32_4tech
 str_is_int_c(char *str){
     b32_4tech result = 1;
     for (; *str; ++str){
@@ -1800,7 +1763,7 @@ str_is_int_c(char *str){
 
 
 #if defined(FSTRING_IMPLEMENTATION)
-FSTRING_LINK b32_4tech
+ FSTRING_LINK b32_4tech
 str_is_int_s(String str){
     b32_4tech result = 1;
     for (i32_4tech i = 0; i < str.size; ++i){
@@ -1815,7 +1778,7 @@ str_is_int_s(String str){
 
 
 #if defined(FSTRING_IMPLEMENTATION)
-FSTRING_LINK i32_4tech
+ FSTRING_LINK i32_4tech
 str_to_int_c(char *str){
     i32_4tech x = 0;
     for (; *str; ++str){
@@ -1834,7 +1797,7 @@ str_to_int_c(char *str){
 
 
 #if defined(FSTRING_IMPLEMENTATION)
-FSTRING_LINK i32_4tech
+ FSTRING_LINK i32_4tech
 str_to_int_s(String str){
     i32_4tech x, i;
     if (str.size == 0){
@@ -1852,7 +1815,7 @@ str_to_int_s(String str){
 #endif
 
 #if defined(FSTRING_IMPLEMENTATION)
-FSTRING_LINK i32_4tech
+ FSTRING_LINK i32_4tech
 hexchar_to_int(char c){
     i32_4tech x = 0;
     if (c >= '0' && c <= '9'){
@@ -1869,14 +1832,14 @@ hexchar_to_int(char c){
 #endif
 
 #if defined(FSTRING_IMPLEMENTATION)
-FSTRING_LINK char
+ FSTRING_LINK char
 int_to_hexchar(i32_4tech x){
     return (x<10)?((char)x+'0'):((char)x+'a'-10);
 }
 #endif
 
 #if defined(FSTRING_IMPLEMENTATION)
-FSTRING_LINK u32_4tech
+ FSTRING_LINK u32_4tech
 hexstr_to_int(String str){
     u32_4tech x;
     i32_4tech i;
@@ -1895,7 +1858,7 @@ hexstr_to_int(String str){
 #endif
 
 #if defined(FSTRING_IMPLEMENTATION)
-FSTRING_LINK b32_4tech
+ FSTRING_LINK b32_4tech
 color_to_hexstr(String *s, u32_4tech color){
     b32_4tech result = 0;
     i32_4tech i;
@@ -1924,7 +1887,7 @@ color_to_hexstr(String *s, u32_4tech color){
 #endif
 
 #if defined(FSTRING_IMPLEMENTATION)
-FSTRING_LINK b32_4tech
+ FSTRING_LINK b32_4tech
 hexstr_to_color(String s, u32_4tech *out){
     b32_4tech result = 0;
     u32_4tech color = 0;
@@ -1949,7 +1912,7 @@ hexstr_to_color(String s, u32_4tech *out){
 
 
 #if defined(FSTRING_IMPLEMENTATION)
-FSTRING_LINK i32_4tech
+ FSTRING_LINK i32_4tech
 reverse_seek_slash_pos(String str, i32_4tech pos){
     i32_4tech i = str.size - 1 - pos;
     while (i >= 0 && !char_is_slash(str.str[i])){
@@ -1960,21 +1923,21 @@ reverse_seek_slash_pos(String str, i32_4tech pos){
 #endif
 
 #if !defined(FSTRING_GUARD)
-FSTRING_INLINE i32_4tech
+ FSTRING_INLINE i32_4tech
 reverse_seek_slash(String str){
     return(reverse_seek_slash_pos(str, 0));
 }
 #endif
 
 #if !defined(FSTRING_GUARD)
-FSTRING_INLINE String
+ FSTRING_INLINE String
 front_of_directory(String dir){
     return substr_tail(dir, reverse_seek_slash(dir) + 1);
 }
 #endif
 
 #if !defined(FSTRING_GUARD)
-FSTRING_INLINE String
+ FSTRING_INLINE String
 path_of_directory(String dir){
     return substr(dir, 0, reverse_seek_slash(dir) + 1);
 }
@@ -1982,7 +1945,7 @@ path_of_directory(String dir){
 
 
 #if defined(FSTRING_IMPLEMENTATION)
-FSTRING_LINK b32_4tech
+ FSTRING_LINK b32_4tech
 set_last_folder_sc(String *dir, char *folder_name, char slash){
     b32_4tech result = 0;
     i32_4tech size = reverse_seek_slash(*dir) + 1;
@@ -2001,7 +1964,7 @@ set_last_folder_sc(String *dir, char *folder_name, char slash){
 
 
 #if defined(FSTRING_IMPLEMENTATION)
-FSTRING_LINK b32_4tech
+ FSTRING_LINK b32_4tech
 set_last_folder_ss(String *dir, String folder_name, char slash){
     b32_4tech result = 0;
     i32_4tech size = reverse_seek_slash(*dir) + 1;
@@ -2019,7 +1982,7 @@ set_last_folder_ss(String *dir, String folder_name, char slash){
 #endif
 
 #if defined(FSTRING_IMPLEMENTATION)
-FSTRING_LINK String
+ FSTRING_LINK String
 file_extension(String str){
     i32_4tech i;
     for (i = str.size - 1; i >= 0; --i){
@@ -2031,7 +1994,7 @@ file_extension(String str){
 #endif
 
 #if defined(FSTRING_IMPLEMENTATION)
-FSTRING_LINK b32_4tech
+ FSTRING_LINK b32_4tech
 remove_extension(String *str){
     b32_4tech result = 0;
     i32_4tech i;
@@ -2047,7 +2010,7 @@ remove_extension(String *str){
 #endif
 
 #if defined(FSTRING_IMPLEMENTATION)
-FSTRING_LINK b32_4tech
+ FSTRING_LINK b32_4tech
 remove_last_folder(String *str){
     b32_4tech result = 0;
     i32_4tech end = reverse_seek_slash_pos(*str, 1);
@@ -2062,7 +2025,7 @@ remove_last_folder(String *str){
 // TODO(allen): Add hash-table extension to string sets.
 
 #if defined(FSTRING_IMPLEMENTATION)
-FSTRING_LINK b32_4tech
+ FSTRING_LINK b32_4tech
 string_set_match_table(void *str_set, i32_4tech item_size, i32_4tech count, String str, i32_4tech *match_index){
     b32_4tech result = 0;
     i32_4tech i = 0;
@@ -2079,7 +2042,7 @@ string_set_match_table(void *str_set, i32_4tech item_size, i32_4tech count, Stri
 #endif
 
 #if defined(FSTRING_IMPLEMENTATION)
-FSTRING_LINK b32_4tech
+ FSTRING_LINK b32_4tech
 string_set_match(String *str_set, i32_4tech count, String str, i32_4tech *match_index){
     b32_4tech result = string_set_match_table(str_set, sizeof(String), count, str, match_index);
     return(result);
@@ -2087,7 +2050,7 @@ string_set_match(String *str_set, i32_4tech count, String str, i32_4tech *match_
 #endif
 
 #if defined(FSTRING_IMPLEMENTATION)
-FSTRING_LINK String
+ FSTRING_LINK String
 get_first_double_line(String source){
     String line = {0};
     i32_4tech pos0 = find_substr_s(source, 0, make_lit_string("\n\n"));
@@ -2101,7 +2064,7 @@ get_first_double_line(String source){
 #endif
 
 #if defined(FSTRING_IMPLEMENTATION)
-FSTRING_LINK String
+ FSTRING_LINK String
 get_next_double_line(String source, String line){
     String next = {0};
     i32_4tech pos = (i32_4tech)(line.str - source.str) + line.size;
@@ -2126,7 +2089,7 @@ get_next_double_line(String source, String line){
 #endif
 
 #if defined(FSTRING_IMPLEMENTATION)
-FSTRING_LINK String
+ FSTRING_LINK String
 get_next_word(String source, String prev_word){
     
     String word = {0};
@@ -2157,7 +2120,7 @@ get_next_word(String source, String prev_word){
 #endif
 
 #if defined(FSTRING_IMPLEMENTATION)
-FSTRING_LINK String
+ FSTRING_LINK String
 get_first_word(String source){
     String start_str = make_string(source.str, 0);
     String word = get_next_word(source, start_str);
diff --git a/4ed_os_comp_cracking.h b/4ed_os_comp_cracking.h
index b52edcb2..cb695ded 100644
--- a/4ed_os_comp_cracking.h
+++ b/4ed_os_comp_cracking.h
@@ -34,7 +34,9 @@
 
 # if defined(__gnu_linux__)
 #  define IS_LINUX
-# else
+# elif defined(__APPLE__) && defined(__MACH__)
+#  define IS_MAC
+#else
 #  error This compiler/platform combo is not supported yet
 # endif
 
diff --git a/build.sh b/build.sh
index b3acb3e9..ca9d55e4 100755
--- a/build.sh
+++ b/build.sh
@@ -5,7 +5,7 @@ if [ -z "$BUILD_MODE" ]; then
     BUILD_MODE="-DDEV_BUILD"
 fi
 
-WARNINGS="-Wno-write-strings"
+WARNINGS="-Wno-write-strings -Wno-comment -Wno-logical-op-parentheses -Wno-null-dereference -Wno-switch"
 FLAGS="-D_GNU_SOURCE -fPIC -fpermissive $BUILD_MODE"
 
 g++ $WARNINGS $FLAGS meta/build.cpp -g -o ../build/build
diff --git a/meta/4tech_file_moving.h b/meta/4tech_file_moving.h
index e461f78f..c13ee36d 100644
--- a/meta/4tech_file_moving.h
+++ b/meta/4tech_file_moving.h
@@ -28,6 +28,13 @@ static char platform_correct_slash = '\\';
 #define SLASH "/"
 static char platform_correct_slash = '/';
 
+#elif defined(IS_MAC)
+#  define ONLY_WINDOWS(x) (void)0
+#  define ONLY_LINUX(x) (void)0
+
+#define SLASH "/"
+static char platform_correct_slash = '/';
+
 #else
 #  define ONLY_WINDOWS(x) (void)0
 #  define ONLY_LINUX(x) (void)0
@@ -281,8 +288,145 @@ pushdir(char *dir){
     int32_t chresult = chdir(dir);
     if (result == 0 || chresult != 0){
         printf("trying pushdir %s\n", dir);
-        assert(result != 0);
-        assert(chresult == 0);
+        Assert(result != 0);
+        Assert(chresult == 0);
+    }
+    return(temp);
+}
+
+static void
+popdir(Temp_Dir temp){
+    chdir(temp.dir);
+}
+
+static void
+init_time_system(){
+    // NOTE(allen): do nothing
+}
+
+static uint64_t
+get_time(){
+    struct timespec spec;
+    uint64_t result;
+    clock_gettime(CLOCK_MONOTONIC, &spec);
+    result = (spec.tv_sec * (uint64_t)(1000000)) + (spec.tv_nsec / (uint64_t)(1000));
+    return(result);
+}
+
+static int32_t
+get_current_directory(char *buffer, int32_t max){
+    int32_t result = 0;
+    char *d = getcwd(buffer, max);
+    if (d == buffer){
+        result = strlen(buffer);
+    }
+    return(result);
+}
+
+static void
+execute_in_dir(char *dir, char *str, char *args){
+    if (dir){
+        if (args){
+            Temp_Dir temp = pushdir(dir);
+            systemf("%s %s", str, args);
+            popdir(temp);
+        }
+        else{
+            Temp_Dir temp = pushdir(dir);
+            systemf("%s", str);
+            popdir(temp);
+        }
+    }
+    else{
+        if (args){
+            systemf("%s %s", str, args);
+        }
+        else{
+            systemf("%s", str);
+        }
+    }
+}
+
+static void
+slash_fix(char *path){}
+
+static void
+make_folder_if_missing(char *dir, char *folder){
+    if (folder){
+        systemf("mkdir -p %s/%s", dir, folder);
+    }
+    else{
+        systemf("mkdir -p %s", dir);
+    }
+}
+
+static void
+clear_folder(char *folder){
+    systemf("rm -rf %s*", folder);
+}
+
+static void
+delete_file(char *file){
+    systemf("rm %s", file);
+}
+
+static void
+copy_file(char *path, char *file, char *folder1, char *folder2, char *newname){
+    if (!newname){
+        newname = file;
+    }
+    
+    if (path){
+        if (folder2){
+            systemf("cp %s/%s %s/%s/%s", path, file, folder1, folder2, newname);
+        }
+        else{
+            systemf("cp %s/%s %s/%s", path, file, folder1, newname);
+        }
+    }
+    else{
+        if (folder2){
+            systemf("cp %s %s/%s/%s", file, folder1, folder2, newname);
+        }
+        else{
+            systemf("cp %s %s/%s", file, folder1, newname);
+        }
+    }
+}
+
+static void
+copy_all(char *source, char *tag, char *folder){
+    if (source){
+        systemf("cp -f %s/%s %s", source, tag, folder);
+    }
+    else{
+        systemf("cp -f %s %s", tag, folder);
+    }
+}
+
+static void
+zip(char *parent, char *folder, char *file){
+    Temp_Dir temp = pushdir(parent);
+    printf("PARENT DIR: %s\n", parent);
+    systemf("zip -r %s %s", file, folder);
+
+    popdir(temp);
+}
+
+#elif defined(IS_MAC)
+
+#include <time.h>
+#include <unistd.h>
+
+static Temp_Dir
+pushdir(char *dir){
+    Temp_Dir temp;
+    char *result = getcwd(temp.dir, sizeof(temp.dir));
+    int32_t chresult = chdir(dir);
+    if (result == 0 || chresult != 0){
+        printf("trying pushdir %s\n", dir);
+        Assert(result != 0);
+        Assert(chresult == 0);
     }
     return(temp);
 }
diff --git a/string/4coder_string_build_num.txt b/string/4coder_string_build_num.txt
index 9fab48ce..37d2f1ab 100644
--- a/string/4coder_string_build_num.txt
+++ b/string/4coder_string_build_num.txt
@@ -1,5 +1,5 @@
 1
 0
-74
+76
 
 
diff --git a/string/build.sh b/string/build.sh
new file mode 100755
index 00000000..0a380ee1
--- /dev/null
+++ b/string/build.sh
@@ -0,0 +1,10 @@
+#!/bin/bash
+
+WARNINGS="-Wno-write-strings -Wno-comment -Wno-logical-op-parentheses -Wno-null-dereference -Wno-switch"
+FLAGS="-D_GNU_SOURCE -fPIC -fpermissive"
+
+g++ $WARNINGS $FLAGS ../code/string/string_builder.cpp -g -o ../build/string_builder
+
+pushd string
+../../build/string_builder
+popd
diff --git a/string/internal_4coder_string.cpp b/string/internal_4coder_string.cpp
index 4d6b13b7..85cad789 100644
--- a/string/internal_4coder_string.cpp
+++ b/string/internal_4coder_string.cpp
@@ -66,7 +66,7 @@ char_is_upper(char c)
 API_EXPORT_INLINE FSTRING_INLINE b32_4tech
 char_is_upper_utf8(char c)
 /* DOC(If c is an uppercase letter this call returns true.) */{
-    return (c >= 'A' && c <= 'Z' || c >= 128);
+    return (c >= 'A' && c <= 'Z' || (unsigned char)c >= 128);
 }
 
 API_EXPORT_INLINE FSTRING_INLINE b32_4tech
@@ -78,7 +78,7 @@ char_is_lower(char c)
 API_EXPORT_INLINE FSTRING_INLINE b32_4tech
 char_is_lower_utf8(u8_4tech c)
 /* DOC(If c is a lower letter this call returns true.) */{
-    return (c >= 'a' && c <= 'z' || c >= 128);
+    return (c >= 'a' && c <= 'z' || (unsigned char)c >= 128);
 }
 
 API_EXPORT_INLINE FSTRING_INLINE char
@@ -108,7 +108,7 @@ char_is_alpha_numeric(char c)
 API_EXPORT_INLINE FSTRING_INLINE b32_4tech
 char_is_alpha_numeric_utf8(u8_4tech c)
 /* DOC(This call returns non-zero if c is any alphanumeric character including underscore, or is a part of a UTF8 sequence outside of ASCII.) */{
-    return (c >= 'a' && c <= 'z' || c >= 'A' && c <= 'Z' || c >= '0' && c <= '9' || c == '_' || c >= 128);
+    return (c >= 'a' && c <= 'z' || c >= 'A' && c <= 'Z' || c >= '0' && c <= '9' || c == '_' || (unsigned char)c >= 128);
 }
 
 API_EXPORT_INLINE FSTRING_INLINE b32_4tech
@@ -120,7 +120,7 @@ char_is_alpha_numeric_true(char c)
 API_EXPORT_INLINE FSTRING_INLINE b32_4tech
 char_is_alpha_numeric_true_utf8(u8_4tech c)
 /* DOC(This call returns non-zero if c is any alphanumeric character no including underscore.) */{
-    return (c >= 'a' && c <= 'z' || c >= 'A' && c <= 'Z' || c >= '0' && c <= '9' || c >= 128);
+    return (c >= 'a' && c <= 'z' || c >= 'A' && c <= 'Z' || c >= '0' && c <= '9' || (unsigned char)c >= 128);
 }
 
 API_EXPORT_INLINE FSTRING_INLINE b32_4tech
@@ -132,7 +132,7 @@ char_is_alpha(char c)
 API_EXPORT_INLINE FSTRING_INLINE b32_4tech
 char_is_alpha_utf8(u8_4tech c)
 /* DOC(This call returns non-zero if c is any alphabetic character including underscore, or is a part of a UTF8 sequence outside of ASCII.) */{
-    return (c >= 'a' && c <= 'z' || c >= 'A' && c <= 'Z' || c == '_' || c >= 128);
+    return (c >= 'a' && c <= 'z' || c >= 'A' && c <= 'Z' || c == '_' || (unsigned char)c >= 128);
 }
 
 API_EXPORT_INLINE FSTRING_INLINE b32_4tech
@@ -144,7 +144,7 @@ char_is_alpha_true(char c)
 API_EXPORT_INLINE FSTRING_INLINE b32_4tech
 char_is_alpha_true_utf8(u8_4tech c)
 /* DOC(This call returns non-zero if c is any alphabetic character, or is a part of a UTF8 sequence outside of ASCII.) */{
-    return (c >= 'a' && c <= 'z' || c >= 'A' && c <= 'Z' || c >= 128);
+    return (c >= 'a' && c <= 'z' || c >= 'A' && c <= 'Z' || (unsigned char)c >= 128);
 }
 
 API_EXPORT_INLINE FSTRING_INLINE b32_4tech
@@ -156,7 +156,7 @@ char_is_hex(char c)
 API_EXPORT_INLINE FSTRING_INLINE b32_4tech
 char_is_hex_utf8(u8_4tech c)
 /* DOC(This call returns non-zero if c is any valid hexadecimal digit, or is a part of a UTF8 sequence outside of ASCII.) */{
-    return (c >= '0' && c <= '9' || c >= 'A' && c <= 'F' || c >= 'a' && c <= 'f' || c >= 128);
+    return (c >= '0' && c <= '9' || c >= 'A' && c <= 'F' || c >= 'a' && c <= 'f' || (unsigned char)c >= 128);
 }
 
 API_EXPORT_INLINE FSTRING_INLINE b32_4tech
@@ -168,7 +168,7 @@ char_is_numeric(char c)
 API_EXPORT_INLINE FSTRING_INLINE b32_4tech
 char_is_numeric_utf8(u8_4tech c)
 /* DOC(This call returns non-zero if c is any valid decimal digit, or is a part of a UTF8 sequence outside of ASCII.) */{
-    return (c >= '0' && c <= '9' || c >= 128);
+    return (c >= '0' && c <= '9' || (unsigned char)c >= 128);
 }
 
 
@@ -1452,17 +1452,11 @@ space in dest this call returns non-zero.) */{
 API_EXPORT FSTRING_LINK i32_4tech
 u64_to_str_size(uint64_t x)/*
 DOC(This call returns the number of bytes required to represent x as a string.) */{
-    i32_4tech size;
-    if (x < 0){
-        size = 0;
-    }
-    else{
-        size = 1;
+    i32_4tech size = 1;
+    x /= 10;
+    while (x != 0){
         x /= 10;
-        while (x != 0){
-            x /= 10;
-            ++size;
-        }
+        ++size;
     }
     return(size);
 }
diff --git a/string/string_builder.cpp b/string/string_builder.cpp
index f589d8ab..9dd1d219 100644
--- a/string/string_builder.cpp
+++ b/string/string_builder.cpp
@@ -481,7 +481,7 @@ int main(){
 }
 
 #define FTECH_FILE_MOVING_IMPLEMENTATION
-#include "..\meta\4tech_file_moving.h"
+#include "../meta/4tech_file_moving.h"
 
 // BOTTOM