new function for replace and dynamic prompt

add new lib for strings , with str replace function
and evaluate prompt from the input

Author: parsa011

.gitignore

@@ -0,0 +1 @@
+*.o

.vscode/launch.json

@@ -0,0 +1,29 @@
+{
+    // Use IntelliSense to learn about possible attributes.
+    // Hover to view descriptions of existing attributes.
+    // For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
+    "version": "0.2.0",
+    "configurations": [
+        {
+            "name": "gcc - Build and debug active file",
+            "type": "cppdbg",
+            "request": "launch",
+            "program": "${fileDirname}/${fileBasenameNoExtension}",
+            "args": [],
+            "stopAtEntry": false,
+            "cwd": "${fileDirname}",
+            "environment": [],
+            "externalConsole": false,
+            "MIMode": "gdb",
+            "setupCommands": [
+                {
+                    "description": "Enable pretty-printing for gdb",
+                    "text": "-enable-pretty-printing",
+                    "ignoreFailures": true
+                }
+            ],
+            "preLaunchTask": "C/C++: gcc build active file",
+            "miDebuggerPath": "/usr/bin/gdb"
+        }
+    ]
+}

.vscode/tasks.json

@@ -0,0 +1,27 @@
+{
+    "tasks": [
+        {
+            "type": "cppbuild",
+            "label": "C/C++: gcc build active file",
+            "command": "/usr/bin/gcc",
+            "args": [
+                "-g",
+                "${file}",
+                "-o",
+                "${fileDirname}/${fileBasenameNoExtension}"
+            ],
+            "options": {
+                "cwd": "${fileDirname}"
+            },
+            "problemMatcher": [
+                "$gcc"
+            ],
+            "group": {
+                "kind": "build",
+                "isDefault": true
+            },
+            "detail": "Task generated by Debugger."
+        }
+    ],
+    "version": "2.0.0"
+}

Makefile

@@ -1,2 +1,16 @@
-lash: lash.c
-	$(CC) -o lash builtin.c lash.c history.c prompt.c input.c -Wall -Wextra -pedantic -std=c99
+CC=gcc
+CFLAGS=-I.
+DEPS = lash.h builtin.h prompt.h history.h input.h ./lib/string/strlib.h
+OBJ = lash.o builtin.o prompt.o history.o input.o ./lib/string/strlib.o
+
+%.o: %.c $(DEPS)
+	$(CC) -c -o $@ $< $(CFLAGS)
+
+lash: $(OBJ)
+	$(CC) -o $@ $^ $(CFLAGS)
+
+
+.PHONY: clean
+
+clean:
+	rm -f *.o 

a.out

@@ -64,7 +64,7 @@ typedef unsigned long int   uint64;
     *a[] = { __VA_ARGS__,NULL}, \
     **ss=a; \
     while((s=*ss++)) \
-        while((*s)&&(++offset<(int)sizeof(buf))) \
+        while((*s)&&((++offset)<(int)sizeof(buf))) \
             *bp++=*s++; \
     if (offset!=sizeof(buf))*bp=0; \
 }while(0)
@@ -89,15 +89,4 @@ typedef unsigned long int   uint64;
  * is even and odd for number
  */
 #define IS_EVEN( num )  (!IS_ODD( (num) ))
-#define IS_ODD( num )   ((num) & 1)
-
-/* 
- * Swap integers
- */
-//void swap (int *a,int *b)
-//{
-    //int temp;
-    //temp = *a;
-    //*a = *b;
-    //*b = temp;
-//}
+#define IS_ODD( num )   ((num) & 1)

basics.h

@@ -3,19 +3,20 @@
 #include "basics.h"
 #include "builtin.h"
 
+
 /*
  * builtin function 
  */
-extern char *builtin_str[] = {
+char *builtin_str[] = {
     "cd",
     "help",
     "exit"
 };
 
 /*
- * some pointer to builtin functions
+ *  List of builtin commands, followed by their corresponding functions.
  */
-extern int (*builtin_func[]) (char **) = {
+int (*builtin_func[]) (char **) = {
     &lash_cd,
     &lash_help,
     &lash_exit
@@ -42,7 +43,8 @@ int lash_cd(char **args)
 int lash_help(char **args)
 {
     int i;
-    printl("modified and improved lsh by pms (parsa mahmoudy sahebi , parsa011 :D)");
+    printl("Stephen Brennan's lash");
+    printl("modified and improved by pms (parsa mahmoudy sahebi , parsa011 :D)");
     printl("Type program names and arguments, and hit enter.");
     printl("The following are built in:");
 

builtin.c

@@ -0,0 +1 @@
+

history.c

@@ -11,7 +11,7 @@
 int main(int argc,char **arcv)
 {
     // load config file
-    set_prompt(">  ");
+    set_prompt("%d >  ");
     showpath = TRUE;
     // Run loop
     lash_loop();
@@ -42,11 +42,9 @@ void lash_loop(void)
  */
 char *lash_read_line()
 {
-    int bufsize = lash_RL_BUFSIZE, c;
+    int bufsize = LASH_RL_BUFSIZE, c;
     int position = 0;
     char *buffer = malloc(sizeof(char) * bufsize);
-
-    check_alloc(buffer);
 
     // If we hit EOF, replace it with a null character and return.
     while (TRUE) {
@@ -61,9 +59,8 @@ char *lash_read_line()
 
     // If we have exceeded the buffer, reallocate.
     if (position >= bufsize){
-        bufsize += lash_RL_BUFSIZE;
+        bufsize += LASH_RL_BUFSIZE;
         buffer = realloc(buffer,bufsize);
-        check_alloc(buffer);
     }
 }
 
@@ -74,20 +71,20 @@ char *lash_read_line()
  */
 char **lash_split_line(char *line)
 {
-    int bufsize = lash_TOK_BUFSIZE, position = 0;
+    int bufsize = LASH_TOK_BUFSIZE, position = 0;
     char **tokens = malloc(bufsize *  sizeof(char*));
     char *token;
 
-    token = strtok(line,lash_TOK_DELIM);
+    token = strtok(line,LASH_TOK_DELIM);
     // i have to write a tokenizer for \ / and ....
     while (token != NULL){
         tokens[position++] = token;
 
         if (position >= bufsize){
-            bufsize += lash_TOK_BUFSIZE;
+            bufsize += LASH_TOK_BUFSIZE;
             tokens = realloc(tokens,bufsize * sizeof(char*));
         }
-        token = strtok(NULL, lash_TOK_DELIM);
+        token = strtok(NULL, LASH_TOK_DELIM);
     }
     tokens[position] = NULL;
     return tokens;