## Short ship — basic version
## ──────────────────────────────────────
## Column settings:
##   Column heading : Cover ship tags
##   Lookup name    : short_ships
##   Column type    : Column built from other columns, behaves like tags
##
## Reads the #ship column, finds the first slash (romantic) relationship,
## and returns a short name for display on covers.
##
## To add a ship: copy any elif block and update the pattern and label.
##   Pattern: the ship name as it appears in AO3 tags (lowercase).
##   Use | to match multiple variants: 'name a|name b'
##   Label: whatever you want displayed on the cover.
##
## Anything not in the translation table falls back to a trimmed
## version of the raw tag ("Character A/Character B").
##
## Note: Calibre sorts the #ship column alphabetically, so this
## template may not always return the author's intended primary ship
## for fics with multiple pairings. See the anthology-aware version
## for order-preserving extraction.

program:
raw_ships = field('#ship');

## Find the first slash ship, regardless of how many tags precede it.
## If no slash ship exists, return 'Gen'.
s0 = '';
if contains(raw_ships, '/', '1', '') then
    s0 = re(raw_ships, '^(?:[^/,]+,\s*)*([^,]+/[^,]+)(?:,.*)?$', '\1');
    ## If the result still contains a comma, the regex didn't isolate
    ## a single tag — clear it and fall through to Gen.
    if contains(s0, ',', '1', '') then s0 = '' fi
fi;

if !s0 then return 'Gen' fi;

## ── Translation table ──────────────────────────────────────────────
## Add your ships here following the same elif pattern.
lc = lowercase(s0);

if contains(lc, 'sherlock holmes/john watson|john/sherlock|sherlock/john', '1', '') then
    return 'Johnlock'
elif contains(lc, 'shane hollander/ilya rozanov', '1', '') then
    return 'Hollanov'

## ── Add your ships above this line ────────────────────────────────

else
    ## Fallback: return trimmed raw tag
    return re(s0, '(?i)([^/]+)/([^/]+)', '\1/\2')
fi