initial version

1 files changed, 76 insertions, 0 deletions

diff --git a/rtsed.py b/rtsed.py
new file mode 100644
index 0000000..af17b2b
--- /dev/null
+++ b/rtsed.py
@@ -0,0 +1,76 @@
+import curses
+import os
+import sys
+import StringIO
+
+from subprocess import *
+import subprocess
+
+# our screen
+screen = curses.initscr()
+curses.noecho()
+curses.cbreak()
+curses.curs_set(0)
+curses.start_color()
+
+curses.init_pair(1, curses.COLOR_WHITE, curses.COLOR_CYAN)
+curses.init_pair(2, curses.COLOR_WHITE, curses.COLOR_RED) 
+
+# our stdin input
+input_buffer = ""
+
+# rows and columns of our screen
+cols = int(subprocess.check_output(["tput", "cols"]))
+rows = int(subprocess.check_output(["tput", "lines"]))
+
+def call_sed(string):
+  process = Popen(["sed", "-e", string], stdout=PIPE, stdin=PIPE, stderr=PIPE) 
+  ret = process.communicate(input_buffer)
+  if(process.returncode is not 0):
+    screen.addstr(ret[1][:-1].ljust(cols), curses.color_pair(2));
+  else:
+    screen.addstr(ret[0]);
+  return
+
+
+def main():
+
+  input_string = ""
+  global input_buffer
+
+  for line in open(sys.argv[1], "r"):
+    input_buffer = input_buffer + line
+  
+  # init our screen
+  screen.addstr("".ljust(cols), curses.color_pair(1));
+  screen.addstr(input_buffer)
+  screen.addstr("EOF")
+
+  try: 
+    while 1:
+      key = screen.getch()
+      screen.clear()
+      if(key > 256):
+        continue;
+      if(key == 127):
+        input_string = input_string[:-1]
+        screen.addstr(input_string.ljust(cols), curses.color_pair(1));
+        screen.addstr(input_buffer)
+        screen.addstr("EOF")
+        continue;
+      elif(key == 13 or key == 10):
+        screen.addstr(input_string.ljust(cols), curses.color_pair(1));
+        call_sed(input_string)
+        screen.addstr("EOF")
+        continue;
+      else:
+        input_string+=chr(key)
+        screen.addstr(input_string.ljust(cols), curses.color_pair(1));
+        screen.addstr(input_buffer)
+        screen.addstr("EOF")
+  finally:
+    curses.endwin()
+
+if __name__ == "__main__":
+    sys.exit(main())
+