expr main <([(on first glance), (on a first glance), (on the first glance)]), ([on])>
let message "Use `at first glance` instead of `on first glance` when describing an immediate impression."
let description "The standard idiom starts with `at` for quick appraisals, so swap the preposition to keep the phrase idiomatic."
let kind "Usage"
let becomes "at"
let strategy "MatchCase"
# True positives
test "On first glance it seems like a good plan." "At first glance it seems like a good plan."
test "On first glance, the homepage felt fast." "At first glance, the homepage felt fast."
test "On a first glance the credential list looked complete." "At a first glance the credential list looked complete."
test "On the first glance I took at the draft, the tone felt steady." "At the first glance I took at the draft, the tone felt steady."
test "ON FIRST GLANCE the tab looked empty." "AT FIRST GLANCE the tab looked empty."
test "On first glance we thought the fix had landed." "At first glance we thought the fix had landed."
# False negatives (should also trigger)
test "On first glance? the fix seemed ready." "At first glance? the fix seemed ready."
test "On a first glance when scanning the changelog, there were no errors." "At a first glance when scanning the changelog, there were no errors."
test "On the first glance at the dashboard nothing seemed off." "At the first glance at the dashboard nothing seemed off."
test "On first glance--before the audit--the facade looked clean." "At first glance--before the audit--the facade looked clean."
# Guardrails / false positives / true negatives
test "At first glance the patch was a keeper." "At first glance the patch was a keeper."
test "My first glance at the console logs offered little insight." "My first glance at the console logs offered little insight."
test "First glance data points still need verification." "First glance data points still need verification."
test "The timeline on the first slide looked accurate." "The timeline on the first slide looked accurate."
test "He always writes `on first` as part of a headline." "He always writes `on first` as part of a headline."