# "Boarder" (a person who rents a room) is an eggcorn for "border"
# (an edge, boundary, or dividing line). The words sound similar and
# "boarder" can superficially seem plausible, but in technical and everyday
# writing "border" is far more commonly the intended word.
#
# See: https://github.com/Automattic/harper/issues/3471
#
# Strategy: Flag "boarder" when followed by prepositions that indicate the
# spatial/boundary sense of "border" (of, between, around, with, on).
# Also flag "cross the boarder" (geographic border). We do NOT flag bare
# "the boarder" or "boarder to" because those are ambiguous with the
# lodger sense. Allow uses where "boarder" genuinely means a person who
# rents a room.
expr preps [of, between, around, with, on]
expr main [<(boarder @preps), boarder>, <(boarders @preps), boarders>, <(cross the boarder), boarder>, <(cross the boarders), boarders>]
let message "Did you mean `border`?"
let description "Flags the eggcorn `boarder` (a lodger) where `border` (an edge/boundary) is intended."
let kind "Eggcorn"
let becomes ["border", "borders"]
let strategy "MatchCase"
# --- TRUE POSITIVES: "boarder" should be "border" ---
# "boarder of" — the most common pattern
test "Draw the boarder of the container." "Draw the border of the container."
test "The boarder of the image is black." "The border of the image is black."
test "Change the boarder of the element." "Change the border of the element."
# "boarder between"
test "The boarder between the two countries is disputed." "The border between the two countries is disputed."
test "There is a thin boarder between the sections." "There is a thin border between the sections."
# "boarder around"
test "Add a boarder around the text." "Add a border around the text."
test "She drew a boarder around the page." "She drew a border around the page."
# "boarder with"
test "Set the boarder with CSS." "Set the border with CSS."
test "A boarder with a dashed style." "A border with a dashed style."
# "boarder on"
test "Put a boarder on the left side." "Put a border on the left side."
# "cross the boarder" — geographic border
test "They cross the boarder at night." "They cross the border at night."
test "Many people cross the boarder daily." "Many people cross the border daily."
# Plural "boarders"
test "The boarders of the table cells are visible." "The borders of the table cells are visible."
test "The boarders between states are marked." "The borders between states are marked."
test "Set the boarders with a uniform width." "Set the borders with a uniform width."
test "Refugees cross the boarders daily." "Refugees cross the borders daily."
# --- Case matching ---
test "Set the BOARDER of the div." "Set the BORDER of the div."
test "The Boarder of the image is black." "The Border of the image is black."
# --- FALSE POSITIVES: "boarder" is correct (lodger context) ---
# These should NOT be flagged because they lack the spatial preposition context
allows "The new boarder moved in yesterday."
allows "A boarder in the house heard the noise."
allows "She took in a boarder to help with rent."
allows "The boarder paid his rent on time."
allows "Abby is a pregnant woman with a curious new boarder in the apartment over her garage."
# --- Legitimate "border" usage should not be flagged ---
allows "Add a border around the div."
allows "The border between the countries is closed."
allows "She crossed the border at dawn."