From a0a416e7762fcdcc066617da8083b0372b87155c Mon Sep 17 00:00:00 2001
From: Charlie Stanton <charlie@shtanton.xyz>
Date: Thu, 20 Apr 2023 09:59:59 +0100
Subject: Remove filters and various commands that are no longer wanted

These have all been made redundant by the incredible substitute command
---
 main/filter.go | 93 ----------------------------------------------------------
 1 file changed, 93 deletions(-)
 delete mode 100644 main/filter.go

(limited to 'main/filter.go')

diff --git a/main/filter.go b/main/filter.go
deleted file mode 100644
index d80ae8f..0000000
--- a/main/filter.go
+++ /dev/null
@@ -1,93 +0,0 @@
-package main
-
-import (
-	"main/walk"
-)
-
-type PathFilter struct {
-	initial PathFilterState
-}
-func (filter PathFilter) exec(space walk.WalkItem) bool {
-	pathFilterState := make(map[PathFilterState]struct{})
-	pathFilterState[filter.initial] = struct{}{}
-	for _, segment := range space.Path {
-		nextPathFilterState := make(map[PathFilterState]struct{})
-		for curState := range pathFilterState {
-			for nextState := range curState.eat(segment) {
-				nextPathFilterState[nextState] = struct{}{}
-			}
-		}
-		pathFilterState = nextPathFilterState
-	}
-	for pathState := range pathFilterState {
-		if pathState.accept() {
-			return true
-		}
-	}
-	return false
-}
-
-type MapTerminalFilter struct {}
-func (filter MapTerminalFilter) exec(space walk.WalkItem) bool {
-	terminal, isTerminal := space.Value.(walk.TerminalValue)
-	if !isTerminal {
-		return false
-	}
-	return terminal == walk.MapBegin || terminal == walk.MapEnd
-}
-
-type BeginTerminalFilter struct {}
-func (filter BeginTerminalFilter) exec(space walk.WalkItem) bool {
-	terminal, isTerminal := space.Value.(walk.TerminalValue)
-	if !isTerminal {
-		return false
-	}
-	return terminal == walk.ArrayBegin || terminal == walk.MapBegin
-}
-
-type EndTerminalFilter struct {}
-func (filter EndTerminalFilter) exec(space walk.WalkItem) bool {
-	terminal, isTerminal := space.Value.(walk.TerminalValue)
-	if !isTerminal {
-		return false
-	}
-	return terminal == walk.ArrayEnd || terminal == walk.MapEnd
-}
-
-type TerminalFilter struct {}
-func (filter TerminalFilter) exec(space walk.WalkItem) bool {
-	_, isTerminal := space.Value.(walk.TerminalValue)
-	return isTerminal
-}
-
-type RootFilter struct {}
-func (filter RootFilter) exec(space walk.WalkItem) bool {
-	return len(space.Path) == 0
-}
-
-type AndFilter struct {
-	left Filter
-	right Filter
-}
-func (filter AndFilter) exec(space walk.WalkItem) bool {
-	return filter.left.exec(space) && filter.right.exec(space)
-}
-
-type OrFilter struct {
-	left Filter
-	right Filter
-}
-func (filter OrFilter) exec(space walk.WalkItem) bool {
-	return filter.left.exec(space) || filter.right.exec(space)
-}
-
-type NotFilter struct {
-	content Filter
-}
-func (filter NotFilter) exec(space walk.WalkItem) bool {
-	return !filter.content.exec(space)
-}
-
-type Filter interface {
-	exec(walk.WalkItem) bool
-}
\ No newline at end of file
-- 
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