add example: invert dictionary 2

Author: polyxord

src/invert_dictionary_2.md

@@ -0,0 +1,48 @@
+# Invert Dictionary 2
+
+Another way to switch the key-value pairs of a dictionary.
+
+## Before
+
+```gdscript
+var color_to_points = {
+    "red" = 0,
+    "orange" = 5,
+    "yellow" = 10,
+    "green" = 15,
+    "blue" = 20,
+    "purple" = 30,
+    "black" = 50,
+}
+```
+
+## After
+
+```gdscript
+var points_to_color = {
+    0 = "red",
+    5 = "orange",
+    10 = "yellow",
+    15 = "green",
+    20 = "blue",
+    30 = "purple",
+    50 = "black",
+}
+```
+
+## Command
+
+```
+webS_to_<enter><alt-(>
+
+xt}S,|=<enter>_2<alt-(>
+```
+
+1. `web` selects the second word without whitespace
+1. `S` splits the selection on regex match. We type in `_to_` for the regex and hit `<enter>` to split it into two sections
+1. `<alt-(>` rotates the contents of the selections
+1. `x` selects the whole line
+1. `t}` selects until (but not including) the next "}" character
+1. `S` splits the selection on regex match. We type in `,|=` for the regex and hit `<enter>` to split it into sub-selections
+1. `_` trims trailing whitespace on all selections
+1. `2<alt-(>` rotates the contents of selections, but only between pairs of selections.