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authorCharlie Stanton <charlie@shtanton.xyz>2022-08-26 11:51:46 +0100
committerCharlie Stanton <charlie@shtanton.xyz>2022-08-26 11:51:46 +0100
commitce5c224211a94bfd4c898b51d15febdf2ed9d6f2 (patch)
tree8d1c9db463d9c1793bd3aad2b6875a22d4add90c /main/command.go
parentececdecdaf6c6f6295d31a92f0663d703e7760dd (diff)
downloadstred-go-ce5c224211a94bfd4c898b51d15febdf2ed9d6f2.tar
Refactors some stuff and adds lexing and parsing
Diffstat (limited to 'main/command.go')
-rw-r--r--main/command.go84
1 files changed, 69 insertions, 15 deletions
diff --git a/main/command.go b/main/command.go
index 560d3c3..bad5b1e 100644
--- a/main/command.go
+++ b/main/command.go
@@ -2,24 +2,26 @@ package main
type PrintValueCommand struct {}
func (cmd PrintValueCommand) exec(state *ProgramState) {
- state.out <- state.space
+ for _, item := range state.space {
+ state.out <- item
+ }
}
type ToggleTerminalCommand struct {}
func (cmd ToggleTerminalCommand) exec(state *ProgramState) {
- terminal, isTerminal := state.space.value.(TerminalValue)
- if !isTerminal {
- return
+ toggled := map[TerminalValue]TerminalValue {
+ ArrayBegin: MapBegin,
+ ArrayEnd: MapEnd,
+ MapBegin: ArrayBegin,
+ MapEnd: ArrayEnd,
}
- switch terminal {
- case ArrayBegin:
- state.space.value = MapBegin
- case ArrayEnd:
- state.space.value = MapEnd
- case MapBegin:
- state.space.value = ArrayBegin
- case MapEnd:
- state.space.value = ArrayEnd
+
+ for i := range state.space {
+ terminal, isTerminal := state.space[i].value.(TerminalValue)
+ if !isTerminal {
+ continue
+ }
+ state.space[i].value = toggled[terminal]
}
}
@@ -28,11 +30,63 @@ type FilteredCommand struct {
command Command
}
func (cmd FilteredCommand) exec(state *ProgramState) {
- if cmd.filter.exec(state) {
- cmd.command.exec(state)
+ for _, item := range state.space {
+ if cmd.filter.exec(item) {
+ cmd.command.exec(state)
+ return
+ }
+ }
+}
+
+type SequenceCommand struct {
+ commands []Command
+}
+func (cmd SequenceCommand) exec(state *ProgramState) {
+ for _, command := range cmd.commands {
+ command.exec(state)
+ }
+}
+
+type AppendCommand struct {
+ values []WalkValue
+}
+func (cmd AppendCommand) exec(state *ProgramState) {
+ for _, value := range cmd.values {
+ state.space = append(state.space, WalkItem {
+ path: nil,
+ value: value,
+ })
}
}
+type PrependCommand struct {
+ values []WalkValue
+}
+func (cmd PrependCommand) exec(state *ProgramState) {
+ var newItems []WalkItem
+ for _, value := range cmd.values {
+ newItems = append(newItems, WalkItem {
+ path: nil,
+ value: value,
+ })
+ }
+ state.space = append(newItems, state.space...)
+}
+
+type PrintLiteralsCommand struct {
+ items []WalkItem
+}
+func (cmd PrintLiteralsCommand) exec(state *ProgramState) {
+ for _, item := range cmd.items {
+ state.out <- item
+ }
+}
+
+type DeleteAllCommand struct {}
+func (cmd DeleteAllCommand) exec(state *ProgramState) {
+ state.space = nil
+}
+
type Command interface {
exec(*ProgramState)
} \ No newline at end of file