resolve various issues and tests

1 files changed, 59 insertions, 0 deletions

diff --git a/bin/dumb_fse.py b/bin/dumb_fse.py
new file mode 100755
index 0000000..297c60a
--- /dev/null
+++ b/bin/dumb_fse.py
@@ -0,0 +1,59 @@
+#!/usr/bin/env python
+# Dumb full-screen editor. It doesn't save anything but to the screen.
+#
+# "Why wont python let me read memory
+#  from screen like assembler? That's dumb." -hellbeard
+from __future__ import division
+import collections
+import functools
+from blessed import Terminal
+
+echo_xy = lambda cursor, text: functools.partial(
+    print, end='', flush=True)(cursor.term.move(cursor.y, cursor.x) + text)
+
+Cursor = collections.namedtuple('Point', ('y', 'x', 'term'))
+
+above = lambda b, n: Cursor(
+    max(0, b.y - n), b.x, b.term)
+below = lambda b, n: Cursor(
+    min(b.term.height - 1, b.y + n), b.x, b.term)
+right_of = lambda b, n: Cursor(
+    b.y, min(b.term.width - 1, b.x + n), b.term)
+left_of = lambda b, n: Cursor(
+    b.y, max(0, b.x - n), b.term)
+home = lambda b: Cursor(
+    b.y, 1, b.term)
+
+lookup_move = lambda inp_code, b: {
+    # arrows
+    b.term.KEY_LEFT: left_of(b, 1),
+    b.term.KEY_RIGHT: right_of(b, 1),
+    b.term.KEY_DOWN: below(b, 1),
+    b.term.KEY_UP: above(b, 1),
+    # shift + arrows
+    b.term.KEY_SLEFT: left_of(b, 10),
+    b.term.KEY_SRIGHT: right_of(b, 10),
+    b.term.KEY_SDOWN: below(b, 10),
+    b.term.KEY_SUP: above(b, 10),
+    # carriage return
+    b.term.KEY_ENTER: home(below(b, 1)),
+    b.term.KEY_HOME: home(b),
+}.get(inp_code, b)
+
+term = Terminal()
+csr = Cursor(1, 1, term)
+with term.hidden_cursor(), term.raw(), term.location(), term.fullscreen():
+    inp = None
+    while True:
+        echo_xy(csr, term.reverse(u' '))
+        inp = term.inkey()
+        if inp.code == term.KEY_ESCAPE or inp == chr(3):
+            break
+        echo_xy(csr, u' ')
+        n_csr = lookup_move(inp.code, csr)
+        if n_csr != csr:
+            echo_xy(n_csr, u' ')
+            csr = n_csr
+        elif not inp.is_sequence:
+            echo_xy(csr, inp)
+            csr = right_of(csr, 1)