Add styles

hook.zsh

@@ -1,12 +1,12 @@
 setopt promptsubst
 
 prompt_precmd() {
-  export PS1=`prim --ps1 --col $COLUMNS --row $LINES`
+  export PS1=`prim --ps1 --col $COLUMNS --row $LINES --status $?`
-  export RPS1=`prim --rps1 --col $COLUMNS --row $LINES`
+  export RPS1=`prim --rps1 --col $COLUMNS --row $LINES --status $?`
 }
 
 prompt_preexec() {
-  print -P `prim --preexec --col $COLUMNS --row $LINES`
+  print -P `prim --preexec --col $COLUMNS --row $LINES --status $?`
 }
 
 add-zsh-hook precmd prompt_precmd

source/app.d

@@ -1,21 +1,17 @@
 import std.stdio;
 import std.getopt;
 
+import prim.opt;
+
 import prompt.ps1;
+import prompt.rps1;
 import prompt.preexec;
+
+import style;
 import style.color;
 
-struct Opt {
-  bool ps1;
-  bool rps1;
-  bool preexec;
-
-  int col;
-  int row;
-}
-
 void main(string[] argv) {
-  Opt opts;
+  Opts opts;
 
   GetoptResult args = getopt(
     argv,
@@ -26,21 +22,31 @@ void main(string[] argv) {
 
     std.getopt.config.required,
     "col", "terminal width", &opts.col,
+
     std.getopt.config.required,
     "row", "terminal height", &opts.row,
+
+    std.getopt.config.required,
+    "status", "previous command exit code", &opts.status,
   );
 
   if (args.helpWanted) {
     defaultGetoptPrinter("prim", args.options);
   }
 
+  dorun(opts);
+}
+
+void dorun(Opts opts) {
   if (opts.ps1) {
-    ps1(opts.col).setColor(Color.black).write();
+    ps1(opts).write();
   }
 
   if (opts.preexec) {
-    preexec(opts.col).setColor(Color.black).write();
+    preexec(opts.col).write();
   }
 
-  write(setColor("", Color.reset));
+  if (opts.rps1) {
+    rps1(opts).write();
+  }
 }

source/opt.d

@@ -0,0 +1,12 @@
+module prim.opt;
+
+struct Opts {
+  bool ps1;
+  bool rps1;
+  bool preexec;
+
+  int col;
+  int row;
+
+  int status;
+}

source/prompt/preexec.d

@@ -2,6 +2,9 @@ module prompt.preexec;
 
 import comp.hr;
 
+import style;
+import style.color;
+
 string preexec(int col) {
-  return hr(col);
+  return hr(col).set(Color.black);
 }

source/prompt/ps1.d

@@ -1,14 +1,25 @@
 module prompt.ps1;
 
-import comp.hr;
+import std.conv;
-import style.color;
 
-string ps1(int col) {
+import prim.opt;
+import comp.hr;
+
+import style;
+import style.color;
+import style.font;
+
+string ps1(Opts opt) {
   string ps;
 
-  ps ~= hr(col);
+  // divider
+  ps ~= hr(opt.col).set(Color.black);
 
-  ps ~= "> ".setColor(Color.magenta);
+  // previous command status
+  ps ~= ("(" ~ to!string(opt.status) ~ ") ").set(Color.black);
+
+  // prompt char
+  ps ~= "|> ".set(Font.bold).set(opt.status == 0 ? Color.green : Color.red);
 
   return ps;
 }

source/prompt/rps1.d

@@ -0,0 +1,19 @@
+module prompt.rps1;
+
+import std.conv;
+
+import prim.opt;
+
+import style;
+import style.color;
+import style.font;
+
+string rps1(Opts opt) {
+  string ps;
+
+  // previous command status
+  ps ~= ("(" ~ to!string(opt.status) ~ ") ").set(Color.black);
+
+  return ps;
+}
+

source/style/color.d

@@ -1,7 +1,5 @@
 module style.color;
 
-import std.conv;
-
 enum Color {
   black = 30,
   red,
@@ -15,6 +13,28 @@ enum Color {
   reset = 0
 }
 
-string setColor(string s, int code) {
+enum Bright {
-  return "%{\x1b[" ~ to!string(code) ~ "m%}" ~ s;
+  black = 90,
+  red,
+  green,
+  yellow,
+  blue,
+  magenta,
+  cyan,
+  white,
+  def,
+  reset = 0
+}
+
+enum Bg {
+  black = 40,
+  red,
+  green,
+  yellow,
+  blue,
+  magenta,
+  cyan,
+  white,
+  def,
+  reset = 0
 }

source/style/font.d

@@ -0,0 +1,12 @@
+module style.font;
+
+enum Font {
+  bold = 1,
+  dim,
+  italic,
+  underline,
+  blinking,
+  hidden,
+  strikethrough,
+  reset = 0
+}

source/style/package.d

@@ -0,0 +1,9 @@
+module style;
+
+import std.conv;
+
+import style.color;
+
+string set(string s, int code) {
+  return ("%{\x1b[" ~ to!string(code) ~ "m%}") ~ s ~ ("%{\x1b[0m%}");
+}