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Accept spaces or tabs as field separators in edit mode

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Parse crontab lines by splitting on the first two whitespace
boundaries via regex, so both spaces and tabs work as delimiters.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
This commit is contained in:
Matthias Johnson 2026-02-14 00:02:20 -07:00
parent 661baf6c16
commit b7e6a77ef5
1 changed files with 21 additions and 16 deletions
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37
systab
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@ -388,9 +388,9 @@ edit_jobs() {
{
cat <<'HEADER'
# systab jobs — edit schedule/command, add/remove lines
# Format: ID SCHEDULE COMMAND
# Format: ID SCHEDULE COMMAND (whitespace-separated)
# Lines starting with # are ignored. Remove a line to delete a job.
# Add a line with "new" as ID to create a job: new daily /path/to/cmd
# Add a line with "new" as ID to create a job: new daily /path/to/cmd
#
# Schedule formats (systemd OnCalendar):
# hourly, daily, weekly, monthly, yearly
@ -449,29 +449,34 @@ HEADER
fi
done < <(get_managed_timers)
# Parse a crontab line into id, sched, cmd (split on first two whitespace runs)
parse_crontab_line() {
local line="$1"
_parsed_id="" _parsed_sched="" _parsed_cmd=""
if [[ "$line" =~ ^([^[:space:]]+)[[:space:]]+([^[:space:]]+)[[:space:]]+(.*) ]]; then
_parsed_id="${BASH_REMATCH[1]}"
_parsed_sched="${BASH_REMATCH[2]}"
_parsed_cmd="${BASH_REMATCH[3]}"
fi
}
# Parse original file
while IFS= read -r line; do
[[ "$line" =~ ^#.*$ || -z "$line" ]] && continue
local id sched cmd
id=$(printf '%s' "$line" | cut -f1)
sched=$(printf '%s' "$line" | cut -f2)
cmd=$(printf '%s' "$line" | cut -f3-)
[[ -n "$id" && -n "$sched" ]] || continue
orig_jobs["$id"]="${sched} ${cmd}"
parse_crontab_line "$line"
[[ -n "$_parsed_id" && -n "$_parsed_sched" ]] || continue
orig_jobs["$_parsed_id"]="${_parsed_sched} ${_parsed_cmd}"
done < "$orig_file"
# Parse edited file
while IFS= read -r line; do
[[ "$line" =~ ^#.*$ || -z "$line" ]] && continue
local id sched cmd
id=$(printf '%s' "$line" | cut -f1)
sched=$(printf '%s' "$line" | cut -f2)
cmd=$(printf '%s' "$line" | cut -f3-)
[[ -n "$id" && -n "$sched" ]] || continue
if [[ "$id" == "new" ]]; then
new_jobs+=("${sched} ${cmd}")
parse_crontab_line "$line"
[[ -n "$_parsed_id" && -n "$_parsed_sched" ]] || continue
if [[ "$_parsed_id" == "new" ]]; then
new_jobs+=("${_parsed_sched} ${_parsed_cmd}")
else
edited_jobs["$id"]="${sched} ${cmd}"
edited_jobs["$_parsed_id"]="${_parsed_sched} ${_parsed_cmd}"
fi
done < "$temp_file"