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+---@tag telescope.actions.utils
+
+---@brief [[
+--- Utilities to wrap functions around picker selections and entries.
+---
+--- Generally used from within other |telescope.actions|
+---@brief ]]
+
+local action_state = require('telescope.actions.state')
+
+local utils = {}
+
+--- Apply `f` to the entries of the current picker.
+--- - Notes:
+--- - Mapped entries may include results not visible in the results popup.
+--- - Indices are 1-indexed, whereas rows are 0-indexed.
+--- - Warning: `map_entries` has no return value.
+--- - The below example showcases how to collect results
+--- <pre>
+--- Usage:
+--- local action_state = require "telescope.actions.state"
+--- local action_utils = require "telescope.actions.utils"
+--- function entry_value_by_row()
+--- local prompt_bufnr = vim.api.nvim_get_current_buf()
+--- local current_picker = action_state.get_current_picker(prompt_bufnr)
+--- local results = {}
+--- action_utils.map_entries(prompt_bufnr, function(entry, index, row)
+--- results[row] = entry.value
+--- end)
+--- return results
+--- end
+--- </pre>
+---@param prompt_bufnr number: The prompt bufnr
+---@param f function: Function to map onto entries of picker that takes (entry, index, row) as viable arguments
+function utils.map_entries(prompt_bufnr, f)
+ vim.validate{
+ f = {f, "function"}
+ }
+ local current_picker = action_state.get_current_picker(prompt_bufnr)
+ local index = 1
+ -- indices are 1-indexed, rows are 0-indexed
+ for entry in current_picker.manager:iter() do
+ local row = current_picker:get_row(index)
+ f(entry, index, row)
+ index = index + 1
+ end
+end
+
+--- Apply `f` to the multi selections of the current picker and return a table of mapped selections.
+--- - Notes:
+--- - Mapped selections may include results not visible in the results popup.
+--- - Selected entries are returned in order of their selection.
+--- - Warning: `map_selections` has no return value.
+--- - The below example showcases how to collect results
+--- <pre>
+--- Usage:
+--- local action_state = require "telescope.actions.state"
+--- local action_utils = require "telescope.actions.utils"
+--- function selection_by_index()
+--- local prompt_bufnr = vim.api.nvim_get_current_buf()
+--- local current_picker = action_state.get_current_picker(prompt_bufnr)
+--- local results = {}
+--- action_utils.map_selections(prompt_bufnr, function(entry, index)
+--- results[index] = entry.value
+--- end)
+--- return results
+--- end
+--- </pre>
+---@param prompt_bufnr number: The prompt bufnr
+---@param f function: Function to map onto selection of picker that takes (selection) as a viable argument
+function utils.map_selections(prompt_bufnr, f)
+ vim.validate{
+ f = {f, "function"}
+ }
+ local current_picker = action_state.get_current_picker(prompt_bufnr)
+ for _, selection in ipairs(current_picker:get_multi_selection()) do
+ f(selection)
+ end
+end
+
+return utils