Add path parsing

source/app.d

@@ -10,9 +10,17 @@ import prompt.preexec;
 import style;
 import style.color;
 
-void main(string[] argv) {
+Opts defaultOpts() {
   Opts opts;
 
+  opts.pathlen = 3;
+
+  return opts;
+}
+
+void main(string[] argv) {
+  Opts opts = defaultOpts();
+
   GetoptResult args = getopt(
     argv,
     std.getopt.config.bundling,
@@ -28,6 +36,8 @@ void main(string[] argv) {
 
     std.getopt.config.required,
     "status", "previous command exit code", &opts.status,
+
+    "pathlen", "set length of displayed path", &opts.pathlen,
   );
 
   if (args.helpWanted) {

source/opt.d

@@ -5,6 +5,8 @@ struct Opts {
   bool rps1;
   bool preexec;
 
+  int pathlen;
+
   int col;
   int row;
 

source/prompt/rps1.d

@@ -1,6 +1,12 @@
 module prompt.rps1;
 
 import std.conv;
+import std.regex;
+import std.array;
+
+import std.file : getcwd;
+import std.path : expandTilde;
+import std.algorithm : reverse;
 
 import prim.opt;
 
@@ -11,9 +17,22 @@ import style.font;
 string rps1(Opts opt) {
   string ps;
 
-  // previous command status
-  ps ~= ("(" ~ to!string(opt.status) ~ ") ").set(Color.black);
+  string home = expandTilde("~");
+  string path = replaceFirst(getcwd(), regex(home), "~");
 
-  return ps;
+  string[] splitPath = path.split("/").reverse();
+
+  string[] revSplitPath;
+  for (int i = 0; i < opt.pathlen; i++) {
+    if (i >= splitPath.length)
+      break;
+
+    revSplitPath ~= splitPath[i];
   }
 
+  splitPath = revSplitPath.reverse();
+
+  ps ~= splitPath.join("/");
+
+  return ps.set(Font.italic).set(Color.yellow);
+}

source/style/package.d

@@ -5,5 +5,5 @@ import std.conv;
 import style.color;
 
 string set(string s, int code) {
-  return ("%{\x1b[" ~ to!string(code) ~ "m%}") ~ s ~ ("%{\x1b[0m%}");
+  return ("%{\x1b[" ~ to!string(code) ~ "m%}") ~ s ~ ("%{\x1b[" ~ to!string((Color.reset + 0)) ~ "m%}");
 }