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refactor(diff): parse and reconcile markdown checkbox format

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Problem: parse_buffer matched the old '  text' indent pattern and
detected headers via '^%S'. Priority was read from a '[N] ' prefix.
apply() never reconciled status changes written into the buffer.

Solution: match '- [.] text' for tasks and '^## ' for headers.
Extract state char to derive priority (! -> 1) and status (x -> done).
apply() now reconciles status from the buffer, setting/clearing 'end'
timestamps — enabling the oil-style edit-checkbox-then-:w workflow.
This commit is contained in:
Barrett Ruth 2026-02-24 23:14:41 -05:00
parent afb9e65f8d
commit fe2ee47b5e
2 changed files with 45 additions and 37 deletions
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50
spec/diff_spec.lua
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@ -25,12 +25,12 @@ describe('diff', function()
describe('parse_buffer', function()
it('parses headers and tasks', function()
local lines = {
'School',
'/1/ Do homework',
'/2/ ! Read chapter 5',
'## School',
'/1/- [ ] Do homework',
'/2/- [!] Read chapter 5',
'',
'Errands',
'/3/ Buy groceries',
'## Errands',
'/3/- [ ] Buy groceries',
}
local result = diff.parse_buffer(lines)
assert.are.equal(6, #result)
@ -48,8 +48,8 @@ describe('diff', function()
it('handles new tasks without ids', function()
local lines = {
'Inbox',
' New task here',
'## Inbox',
'- [ ] New task here',
}
local result = diff.parse_buffer(lines)
assert.are.equal(2, #result)
@ -62,9 +62,9 @@ describe('diff', function()
describe('apply', function()
it('creates new tasks from buffer lines', function()
local lines = {
'Inbox',
' First task',
' Second task',
'## Inbox',
'- [ ] First task',
'- [ ] Second task',
}
diff.apply(lines)
store.unload()
@ -80,8 +80,8 @@ describe('diff', function()
store.add({ description = 'Delete me' })
store.save()
local lines = {
'Inbox',
'/1/ Keep me',
'## Inbox',
'/1/- [ ] Keep me',
}
diff.apply(lines)
store.unload()
@ -97,8 +97,8 @@ describe('diff', function()
store.add({ description = 'Original' })
store.save()
local lines = {
'Inbox',
'/1/ Renamed',
'## Inbox',
'/1/- [ ] Renamed',
}
diff.apply(lines)
store.unload()
@ -111,9 +111,9 @@ describe('diff', function()
store.add({ description = 'Original' })
store.save()
local lines = {
'Inbox',
'/1/ Original',
'/1/ Copy of original',
'## Inbox',
'/1/- [ ] Original',
'/1/- [ ] Copy of original',
}
diff.apply(lines)
store.unload()
@ -126,8 +126,8 @@ describe('diff', function()
store.add({ description = 'Moving task', category = 'Inbox' })
store.save()
local lines = {
'Work',
'/1/ Moving task',
'## Work',
'/1/- [ ] Moving task',
}
diff.apply(lines)
store.unload()
@ -140,8 +140,8 @@ describe('diff', function()
store.add({ description = 'Stable task', category = 'Inbox' })
store.save()
local lines = {
'Inbox',
'/1/ Stable task',
'## Inbox',
'/1/- [ ] Stable task',
}
diff.apply(lines)
store.unload()
@ -158,8 +158,8 @@ describe('diff', function()
store.add({ description = 'Pay bill', due = '2026-03-15' })
store.save()
local lines = {
'Inbox',
'/1/ Pay bill',
'## Inbox',
'/1/- [ ] Pay bill',
}
diff.apply(lines)
store.unload()
@ -172,8 +172,8 @@ describe('diff', function()
store.add({ description = 'Task name', priority = 1 })
store.save()
local lines = {
'Inbox',
'/1/ Task name',
'## Inbox',
'/1/- [ ] Task name',
}
diff.apply(lines)
store.unload()