Port before_v0.60/math, before_v0.60/parsing and `before_v0.60/gi…

…t` (#844)

This PR is part of porting all old scripts #221 and includes a set of
small modules:
- `math`
- `parsing`
- `git`

before_v0.60/git/git_branch_age.nu → modules/git/git_branch_age.nu

@@ -1,13 +1,13 @@
 # Creates a table listing the branches of a git repository and the day of the last commit
-def "git age" [] {
+export def "git age" [] {
  git branch |
  lines |
- str substring 2, |
+ str substring 2.. |
  wrap name |
  insert last_commit {
  get name |
  each {
- git show $it --no-patch --format=%as | str to-datetime
+ git show $in --no-patch --format=%as | into datetime
  }
  } |
  sort-by last_commit

before_v0.60/parsing/sample_andres.nu → modules/parsing/sample_andres.nu

@@ -5,17 +5,17 @@ def look_for [word] {
  insert comp {
  get shoes_name |
  split row " " |
- each --numbered {
- [[idx, loc]; [$it.index, ($it.item | str index-of $word)]]
- }
+ enumerate | each {
+ [[idx, loc]; [$in.index, ($in.item | str index-of $word)]]
+ } | flatten
  } |
  flatten |
  where comp.loc >= 0 |
  flatten |
- update idx { $it.idx + 1 } |
+ update idx { $in + 1 } |
  reject name price loc |
  rename nameWords targetWordIndex
 }
 
-look_for "leather" | to json --pretty 4
-look_for "low-top" | to json --pretty 4
+print (look_for "leather" | to json --indent 4)
+print (look_for "low-top" | to json --indent 4)