Call this v0.5.1 -> version bump on minor function additions

Makefile

@@ -2,7 +2,7 @@
 # (C) Copyright 2014-2021 Chris Dorman, some rights reserved (GPLv2)
 # Some changes and tweaks from Menchers
 
-VERSION       = \"0.5.0\"
+VERSION       = \"0.5.1\"
 VERSION_EXTRA = \"$(EXTRA)\"
 
 PREFIX ?= /usr

Makefile.musl

@@ -2,7 +2,7 @@
 # (C) Copyright 2014-2021 Chris Dorman, some rights reserved (GPLv2)
 # Some changes and tweaks from Menchers
 
-VERSION       = \"0.5.0\"
+VERSION       = \"0.5.1\"
 VERSION_EXTRA = \"$(EXTRA)\"
 
 PREFIX ?= /usr

README.txt

@@ -48,20 +48,18 @@ at this moment!
    * isdir "examples/" -> returns 0 for not, 1 for is
    * isfile "examples/functions.ss" -> returns 1, its there
 
-* showdir (alias ls) function, example:
-   * showdir -> Lists current directory (ls does the same)
-   * showdir "/" -> lists '/' (ls "/" does the same)
-
-* mkdir and mkfile functions, example:
-   * mkfile "file.txt" -> creates empty 'file.txt'
+* File manipulation functions
+   * move "file1" "file2" -> Renames/moves file1 to file2 (mv)
+   * chdir "/home/user" -> Changes directory to /home/user (cd)
+   * showpath -> Returns current working directory (pwd alias)
+   * showdir -> Lists current directory (ls alias)
+   * showdir "/" -> lists '/'
+   * mkfile "file.txt" -> creates empty 'file.txt' (touch alias)
    * mkdir "testing/" -> creates directory 'testing'
    * mkfile "testing/file.txt" -> creates directory 'testing', and creates 'file.txt'
 
-* Delete example:
-   * delete "file.txt"
-
 * Execute example:
-   * exec "ls -al"
+   * exec "ls -al" (alias to ~"ls -al")
 
 * Slidescript compression functions, example:
    * compress "archivename" "file1 file2 dir1 dir2" -> file1, 2, dir1, 2 archived, compressed, 
@@ -148,6 +146,11 @@ Changelog
 Changes between version bumps in SlideScript. Hoping to have a lightweight top-down scripting language
 by V1.0.0 release! From there it will be molding and preserving the art.
 
+* V0.5.1
+   * Compression and decompression bugfixes
+   * System working functions (move, chdir, and showpath)
+   * General clean, removed bins/ until language stabilizes
+
 * V0.5.0
    * Interactive mode gives users prompt on call to slidescript (Thanks OldCoder!)
    * Added showdir (alias ls)

src/functions.c

@@ -52,8 +52,108 @@ char *process_line(char *line)
     else if(strncmp("exit", tok_srch, 4) == 0)
         syn_error("ss:exit called");
 
+    // Move files using rename()
+    else if(strncmp("move",tok_srch,4) == 0 || strncmp("mv", tok_srch, 2) == 0)
+    {
+        char orig_fn[MAX_STRING_BUFSIZE]; // Should never be more than 6 characters
+        tok_srch = strtok(NULL, "\"");
+        if(tok_srch == NULL)
+        {
+            syn_warn("ss:warn:move syntax error, missing quote?");
+            return NULL;
+        }
 
-    else if(strncmp("showdir",tok_srch,7) == 0 || strncmp("ls", tok_srch,2) == 0)
+        if(strcmp(tok_srch, "\n") == 0 || strcmp(tok_srch, " \n") == 0)
+        {
+            syn_warn("ss:warn:move syntax error, missing filename?");
+            return NULL;
+        }
+
+        if(strlen(parse_vars(tok_srch)) < MAX_STRING_LEN)
+        {
+            strcpy(orig_fn, parse_vars(tok_srch));
+        }
+        else
+        {
+            syn_warn("ss:warn:move syntax error, missing quote?");
+            return NULL;
+        }
+
+        /* strtok to the content that will be written to file */
+        tok_srch = strtok(NULL, "\"");
+        if(tok_srch == NULL)
+        {
+            syn_warn("ss:warn:move syntax error, missing quote?");
+            return NULL;
+        }
+
+
+        tok_srch = strtok(NULL, "\"");
+        if(strcmp(tok_srch, "\n") == 0 || strcmp(tok_srch, " \n") == 0) 
+        {
+            syn_warn("ss:warn:move syntax error, missing quote?");
+            return NULL;
+        }
+
+        if(strtok(NULL, "\"") == NULL)
+        {
+            syn_warn("ss:warn:move syntax error, missing quote?");
+            return NULL;
+        }
+
+        int rename_return = rename(orig_fn, parse_vars(tok_srch));
+        if(rename_return < 0)
+        {
+            syn_warn("ss:warn:move, failed to move file");
+        }
+
+        return NULL;
+    }
+
+
+    // Show current directory.
+    else if(strncmp("showpath", tok_srch, 8) == 0 || strncmp("pwd", tok_srch, 3) == 0)
+    {
+        // Get current directory, if it errors, return NULL
+        if (getcwd(retbuf, sizeof(retbuf)) == NULL) {
+            return NULL;
+        }
+        // All good, return path
+        return retbuf;
+    }
+
+    // Change directory
+    else if(strncmp("chdir", tok_srch, 5) == 0 || strncmp("cd", tok_srch, 2) == 0)
+    {
+        char *dirname;
+        int chdir_return;
+
+        tok_srch = strtok(NULL, "\"");
+        if(tok_srch == NULL)
+        {
+            syn_warn("ss:warn:chdir syntax error, missing quote?");
+            return NULL;
+        }
+
+        if(strtok(NULL, "\"") == NULL)
+        {
+            syn_warn("ss:warn:chdir syntax error, missing end quote?");
+            return NULL;
+        }
+
+        dirname = parse_vars(tok_srch);
+
+        chdir_return = chdir(dirname);
+
+        if(chdir_return < 0)
+        {
+            syn_warn("ss:warn:chdir, error changing directory");
+        }
+        return NULL;
+    }
+
+
+    else if(strncmp("showdir", tok_srch, 7) == 0 || strncmp("ls", tok_srch, 2) == 0)
     {
         char *dirname;