Parse command output text — parse

Parses output from a run() result into trimmed text lines.

Usage

parse_output(res, stream = c("stdout", "stderr", "both", "plain"))

Arguments

res: Either a process result list (with stdout and/or stderr) or a character vector when stream = "plain".
stream: Character string selecting the output source. Supported values are "stdout", "stderr", "both", and "plain". Defaults to "stdout".

Value

A character vector with one trimmed line per element.

Examples

# Example result object from condathis::run()
res <- list(
  stdout = "line1\nline2\nline3\n",
  stderr = "error1\nerror2\n"
)

# Parse the standard output
parse_output(res, stream = "stdout")
#> [1] "line1" "line2" "line3"

# Parse the standard error
parse_output(res, stream = "stderr")
#> [1] "error1" "error2"

# Merge both
parse_output(res, stream = "both")
#> [1] "line1"  "line2"  "line3"  "error1" "error2"

# Parse plain text
plain_text <- "This is line one.\nThis is line two.\nThis is line three."
parse_output(plain_text, stream = "plain")
#> [1] "This is line one."   "This is line two."   "This is line three."