Push/full datapack v2

datapacks/dataLib/data/datalib/dialog/input_prompt.json

@@ -0,0 +1,33 @@
+{
+  "type": "minecraft:multi_action",
+  "title": {
+    "text": "dataLib Input"
+  },
+  "body": {
+    "type": "minecraft:plain_message",
+    "contents": "Enter your input below."
+  },
+  "inputs": [
+    {
+      "type": "minecraft:text",
+      "key": "dl_input_text",
+      "label": "Input",
+      "label_visible": false,
+      "max_length": 2000
+    }
+  ],
+  "can_close_with_escape": true,
+  "after_action": "close",
+  "pause": false,
+  "actions": [
+    {
+      "label": {
+        "text": "Submit"
+      },
+      "action": {
+        "type": "minecraft:dynamic/run_command",
+        "template": "/function datalib:input/_private/dialog_capture {value:$(dl_input_text)}"
+      }
+    }
+  ]
+}

datapacks/dataLib/data/datalib/function/input/_private/book_capture.mcfunction

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+# ======================================================================================
+# datalib:input/_private/book_capture  [INTERNAL — do not call directly]
+# ======================================================================================
+#
+# Runs with @s bound to a single player holding the marked written_book.
+# Extracts SelectedItem.components."minecraft:writable_book_content".pages[0].raw
+# into datalib:input storage. Read-only capture, no execution.
+# ======================================================================================
+
+data modify storage datalib:input book.player set from entity @s UUID
+data modify storage datalib:input book.raw set from entity @s SelectedItem.components."minecraft:writable_book_content".pages[0].raw
+
+# Same "raw, unvalidated, unexecuted" contract as command_block_minecart capture.
+data modify storage datalib:input book.executed set value 0b
+execute if data storage datalib:input book{executed:0b} run function #datalib:input/writable_book
+
+# Clear the custom_data marker so the same book cannot be resubmitted every
+# tick while the player keeps holding it — this is a one-shot capture.
+data remove entity @s SelectedItem.components."minecraft:custom_data".dataLib.input

datapacks/dataLib/data/datalib/function/input/_private/cbm_align_tp.mcfunction

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+# ======================================================================================
+# datalib:input/_private/cbm_align_tp  [INTERNAL — call explicitly, not auto-ticked]
+# ======================================================================================
+#
+# Legends11's tested pattern: teleports the executing player to the nearest
+# entity tagged 'datalib_input' along their eye-line, avoiding a manual
+# rail + redstone_block setup and skipping the "right-click to open" step.
+#
+# NOT added to #datalib:events/on_tick automatically — this runs 'as @a',
+# which is a different cost/behavior profile than the capture functions
+# above (it moves players every tick if left running unconditionally).
+# Hook this into whatever trigger Legends11 intends (a specific tag,
+# a command, an advancement) — not assumed here.
+# ======================================================================================
+
+execute as @e[type=minecraft:command_block_minecart,tag=datalib_input] as @a at @s anchored eyes align y positioned ^ ^ ^0.0 run tp @e[sort=nearest,limit=1,tag=datalib_input] ~ ~-0.23 ~

datapacks/dataLib/data/datalib/function/input/_private/cbm_capture.mcfunction

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+# ======================================================================================
+# datalib:input/_private/cbm_capture  [INTERNAL — do not call directly]
+# ======================================================================================
+#
+# Only reached when cbm_process confirmed Command is non-empty. Runs with
+# @s still bound to that minecart.
+#
+# TOCTOU note: snapshot into datalib:input BEFORE clearing Command, so a
+# later tick mutating the entity's NBT cannot change what we already
+# captured this tick.
+#
+# Entity handling matches TunnelScript: Command is cleared back to "" so
+# the minecart is reusable and is NOT killed. This also matches the
+# 'tunnelscript_input' tag Legends11 uses elsewhere (cbm_align_tp), which
+# assumes the tagged minecart persists in the world.
+# ======================================================================================
+
+# Snapshot raw command string as-is — no interpretation, no execution.
+data modify storage datalib:input cbm.command set from storage datalib:input _cbm.current
+
+data modify storage datalib:input cbm.source_uuid set from entity @s UUID
+data modify storage datalib:input cbm.pos set from entity @s Pos
+
+# "raw, unvalidated, unexecuted" — downstream (separate execution pack)
+# must run this through datalib:core/security/sanitize and
+# datalib:debug/tools/utils/input_check before ever treating it as
+# runnable, and running it there stays optional, never mandatory.
+data modify storage datalib:input cbm.executed set value 0b
+execute if data storage datalib:input cbm{executed:0b} run function #datalib:input/command_block_minecart
+
+# Clear Command so this same value isn't recaptured next tick — the
+# minecart itself is kept alive, not killed.
+data modify entity @s Command set value ""
+
+data remove storage datalib:input _cbm

datapacks/dataLib/data/datalib/function/input/_private/cbm_process.mcfunction

@@ -0,0 +1,16 @@
+# ======================================================================================
+# datalib:input/_private/cbm_process  [INTERNAL — do not call directly]
+# ======================================================================================
+#
+# Runs with @s bound to a single tagged command_block_minecart. Reads its
+# Command NBT into scratch storage, then only proceeds to capture if the
+# value is a REAL non-empty string — matching TunnelScript's
+# 'execute unless data storage tunnelscript:minecart {current:""}' check,
+# not just a path-existence check.
+# ======================================================================================
+
+data modify storage datalib:input _cbm.current set from entity @s Command
+
+# Compare the actual VALUE to "" — a compound match, not a path-existence
+# check. This is the fix for the false-positive-on-empty-Command bug.
+execute unless data storage datalib:input {_cbm:{current:""}} run function datalib:input/_private/cbm_capture

datapacks/dataLib/data/datalib/function/input/_private/dialog_capture.mcfunction

@@ -0,0 +1,18 @@
+# ======================================================================================
+# datalib:input/_private/dialog_capture  [INTERNAL — do not call directly]
+# ======================================================================================
+#
+# Called by the dialog system itself via its "run_command" action template
+# (dialog-native substitution, NOT a datapack $$(cmd) macro chain). Receives
+# the submitted text as $(value) and stores it — read-only capture, no
+# execution of the submitted text as a command.
+#
+# NOTE: this file uses '$' line-macro syntax because it is invoked as a
+# macro function (the dialog template calls it with a {value:...} NBT
+# compound). This is NOT the $$(cmd) EXECUTION macro pattern Legends11
+# asked to avoid — no field here is ever run as a command, only stored.
+# ======================================================================================
+
+data modify storage datalib:input dialog.raw set value "$(value)"
+data modify storage datalib:input dialog.executed set value 0b
+execute if data storage datalib:input dialog{executed:0b} run function #datalib:input/dialog

datapacks/dataLib/data/datalib/function/input/command_block_minecart.mcfunction

@@ -0,0 +1,49 @@
+# ======================================================================================
+# datalib:input/command_block_minecart
+# ======================================================================================
+#
+# TRIGGERED BY: #datalib:input/command_block_minecart function tag
+#
+# PURPOSE:
+#   Reads the Command NBT off any command_block_minecart tagged 'datalib_input',
+#   dropped into the world via
+#   'summon minecraft:command_block_minecart ~ ~ ~ {Tags:["datalib_input"]}'.
+#   CAPTURE ONLY — never executes the string itself.
+#
+# REWRITTEN based on Legends11's reference implementation (TunnelScript-1.20.1:
+# tunnelscript_core:internal/minecart_scan + minecart_process + minecart_capture).
+# Bugs fixed vs. the previous version:
+#
+#   BUG 1 — wrong emptiness check. Previous version used
+#     'execute unless data entity @s Command run return 0'
+#   which only checks whether the Command PATH exists, not whether its VALUE
+#   is empty. A minecart with Command:"" (path present, value empty) passed
+#   this check and was treated as real input — false positive capture. Fixed
+#   by comparing the actual value, matching TunnelScript's
+#   'execute unless data storage tunnelscript:minecart {current:""}'.
+#
+#   BUG 2 — killed the entity instead of clearing it. TunnelScript never
+#   kills the minecart: it resets Command back to "" and keeps the entity
+#   alive for reuse (this also matches the 'tunnelscript_input' tag used
+#   elsewhere by Legends11 for the align/tp helper, which assumes the
+#   minecart persists rather than being destroyed each capture). Fixed to
+#   clear Command instead of killing @s.
+#
+#   BUG 3 — 'limit=1,sort=nearest' silently ignored every other tagged
+#   minecart in the world. TunnelScript scans ALL tagged minecarts every
+#   tick with a plain 'as @e[...]', no limit. Fixed to match.
+#
+# SECURITY NOTE (unchanged): whoever can summon this entity with a real
+# Command value already has raw command-execution ability. This function
+# transports that string into the datapack, it does not create the
+# privilege — the real permission boundary is who can spawn a marked
+# minecart at all.
+# ======================================================================================
+
+# Fast exit — nothing tagged, nothing to scan this tick.
+execute unless entity @e[type=minecraft:command_block_minecart,tag=datalib_input] run return 0
+
+execute as @e[type=minecraft:command_block_minecart,tag=datalib_input] run function datalib:input/_private/cbm_process
+function datalib:input/_private/cbm_align_tp
+
+return 1

datapacks/dataLib/data/datalib/function/input/dialog.mcfunction

@@ -0,0 +1,22 @@
+# ======================================================================================
+# datalib:input/dialog
+# ======================================================================================
+#
+# TRIGGERED BY: #datalib:input/dialog function tag
+#
+# PURPOSE:
+#   Opens datalib:input_prompt dialog for @s (must be run 'as' a player,
+#   e.g. 'execute as <player> run function datalib:input/dialog', or bound
+#   to a right-click/other trigger by the caller). Submitted text lands in
+#   datalib:input_prompt's action, which macro-calls
+#   datalib:input/_private/dialog_capture — capture only, no execution.
+#
+# ASSUMPTION FLAGGED — CONFIRM WITH LEGENDS11:
+#   This function assumes the caller decides WHEN to open the dialog
+#   (e.g. right-click on an item, a command, an advancement). It is NOT
+#   wired to any automatic trigger itself — I did not invent one since
+#   none was specified.
+# ======================================================================================
+
+execute if entity @s[type=minecraft:player] run dialog show @s datalib:input_prompt
+execute unless entity @s[type=minecraft:player] run return fail

datapacks/dataLib/data/datalib/function/input/give_writable_book.mcfunction

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+give @s minecraft:writable_book[minecraft:custom_data={dataLib:{input:1b}}] 1

datapacks/dataLib/data/datalib/function/input/summon_cbm.mcfunction

@@ -0,0 +1,3 @@
+kill @e[type=minecraft:minecart,tag=datalib_input,sort=nearest,limit=1,distance=..2]
+kill @e[type=minecraft:interaction,tag=datalib_input,sort=nearest,limit=1,distance=..2]
+execute as @s at @s run summon minecraft:interaction ~ ~ ~ {width:1.0f,height:1.0f,Tags:["datalib_input"],Passengers:[{id:"minecraft:command_block_minecart",Tags:["datalib_input"]}]}

datapacks/dataLib/data/datalib/function/input/writable_book.mcfunction

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+# ======================================================================================
+# datalib:input/writable_book
+# ======================================================================================
+#
+# TRIGGERED BY: #datalib:input/writable_book function tag
+#
+# PURPOSE:
+#   Detect a player holding a written_book marked with
+#   custom_data={dataLib:{input:1b}} (given via
+#   'give @s minecraft:written_book[minecraft:custom_data={dataLib:{input:1b}}]'),
+#   and extract the raw text of page[0] from
+#   SelectedItem.components."minecraft:writable_book_content".pages[0].raw
+#   into datalib:input storage. Input capture ONLY — no execution here.
+#
+# WHY THIS ONLY CHECKS THE MAINHAND SELECTED ITEM:
+#   'SelectedItem' reflects the player's currently held mainhand item at
+#   entity-data-read time. If the marked book is not currently selected,
+#   this tick simply finds nothing — this is intentional, not a bug: we
+#   don't want to scan a player's whole inventory every tick for cost
+#   reasons, and forcing "hold it to submit" is a reasonable UX contract.
+#
+# NO MACRO, NO EXECUTION:
+#   This function contains no $$(...) macro syntax. It only reads and
+#   stores text. Whether the captured text is ever treated as a command
+#   is entirely up to a separate, opt-in execution pack — never mandatory.
+# ======================================================================================
+
+# Fast exit — skip entirely if no player is holding the marked book
+execute unless entity @a[nbt={SelectedItem:{components:{"minecraft:custom_data":{dataLib:{input:1b}}}}}] run return 0
+
+execute as @a[nbt={SelectedItem:{components:{"minecraft:custom_data":{dataLib:{input:1b}}}}}] run function datalib:input/_private/book_capture
+
+return 1

datapacks/dataLib/data/datalib/tags/function/input/command_block_minecart.json

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+{
+  "values": []
+}

datapacks/dataLib/data/datalib/tags/function/input/dialog.json

@@ -0,0 +1,3 @@
+{
+  "values": []
+}

datapacks/dataLib/data/datalib/tags/function/input/writable_book.json

@@ -0,0 +1,3 @@
+{
+  "values": []
+}

datapacks/dataLib/data/datalib/tags/function/loop.json

@@ -1,3 +1,7 @@
 {
-  "values": []
+  "values": [
+    "datalib:input/writable_book",
+    "datalib:input/command_block_minecart",
+    "datalib:core/internal/api/cmd/freeze/tick"
+  ]
 }