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Extract the filename stem before ".txt"

Source: R/file_utilities.R
keep_stem_before_txt.Rd

Removes any directory path and optional `.txt` extension from filenames or file paths. This function standardizes text identifiers across Coh-Metrix, GAMET, and other text analysis outputs that may include full paths or extensions in their ID fields.

Usage

keep_stem_before_txt(x)

Arguments

x

A character vector (or coercible) containing file paths or filenames. Elements may or may not include a `.txt` suffix or any directory path.

Value

A character vector where each element is reduced to the final path component, with any trailing `.txt` (case-insensitive) removed. `NA` values are preserved as `NA_character_`.

Details

The function handles both forward (`/`) and backward (`\`) slashes in file paths. If a value has no path and/or no `.txt` suffix, it is returned unchanged (aside from coercion to character).

Examples

keep_stem_before_txt(c(
  "C:/data/3401.txt",
  "E:\\\\samples\\\\1002.TXT",
  "plain_id",
  NA
))
#> [1] "3401"     "1002"     "plain_id" NA        
#> [1] "3401" "1002" "plain_id" NA