Revision 17:0739cb2f1930, committed 2018-12-19

Comitter:

shimniok

Date:

Wed Dec 19 19:02:17 2018 +0000

Parent:

16:f2b9b7b2c71e

Child:

18:2b5ed529ab37

Commit message:

implemented built-in change dir (cd)

Changed in this revision

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Path.h	Wed Dec 19 19:02:17 2018 +0000
@@ -0,0 +1,25 @@
+#ifndef __PATH_H
+#define __PATH_H
+
+class Path {
+public:
+    /// Create new path object from C string
+    Path(char *s);
+
+    /// Set new path from C string
+    char *set(char *s); // make operator
+
+    /// Change path to its parent directory
+    char *up();
+    
+    /// Change path to a subdirectory
+    char *down(char *);
+    
+    /// Return C string representation of path
+    char *c_str();
+    
+private:
+    list<char *> p;    
+};
+
+#endif
\ No newline at end of file

--- a/SimpleShell.cpp	Wed Dec 19 18:42:25 2018 +0000
+++ b/SimpleShell.cpp	Wed Dec 19 19:02:17 2018 +0000
@@ -23,6 +23,7 @@
     attach(callback(this, &SimpleShell::help), "help");
     attach(callback(this, &SimpleShell::pwd), "pwd");
     attach(callback(this, &SimpleShell::cat), "cat");
+    attach(callback(this, &SimpleShell::cd), "cd");
 }
 
 
@@ -36,6 +37,17 @@
 }
 
 
+void SimpleShell::cd(int argc, char **argv) 
+{
+    if (argc == 2) {
+        strncpy(_cwd, argv[1], MAXBUF);
+    } else {
+        puts("usage: cd <directory>");
+    }
+    return;
+}
+
+
 void SimpleShell::pwd(int argc, char **argv)
 {
     puts(_cwd);

--- a/SimpleShell.h	Wed Dec 19 18:42:25 2018 +0000
+++ b/SimpleShell.h	Wed Dec 19 19:02:17 2018 +0000
@@ -68,6 +68,9 @@
     /// Built-in shell command to display list of commands
     void help(int argc, char **argv);
 
+    /// Change current directory
+    void cd(int argc, char **argv);
+
     /// Built-in shell command to print working directory
     void pwd(int argc, char **argv);