Commit Graph

139 Commits

Author SHA1 Message Date
222a9aa43c fix 'MakeNormalDelete.removeChr' by accounting for case when we are deleting from last line but the last line does not end with its own newline 2025-09-24 09:46:28 +01:00
95393e1e13 amand MakeNormalDelete.removeChr function (which is used by 'x' and 'dh' commands) to pass test, which checks that cursorIdx does not fall on newline-after-chr after deletion 2025-09-24 09:02:33 +01:00
00ab086257 remove code related to appending newlines in 'MakeNormalDelete', as we have decided that we allow files which do not end in newlines as well as files that do 2025-09-24 07:18:11 +01:00
9a15b1715a pass all tests for 'j' motion 2025-09-23 15:30:28 +01:00
95a4f109bd progress reimplementing 'j' motion to pass new tests 2025-09-23 15:22:49 +01:00
fcc8c8085a reimplement 'G' motion so that it follows new rule (cursor goes to second-last chr if last chr is a newline preceded by a non-newline, but goes to last chr otherwise) 2025-09-23 11:57:19 +01:00
4f20379219 take care of a few tests after refactoring/making a different design decision 2025-09-23 11:04:47 +01:00
961ce63023 begin refactoring to let cursor move to very last char of file (including unix line ending) 2025-09-23 10:50:10 +01:00
8931d4d071 fix minor compilation error introduced in previous commit 2025-09-23 09:29:02 +01:00
ec462a4df7 remove special case from 'k' motion: the exact semantics we want for trailing newlines at the end of a file are currently a bit unclear and require exploration 2025-09-23 09:27:13 +01:00
505521f5e2 minor cosmetic change 2025-09-23 09:04:18 +01:00
c9365076ad handle special case with 'k' motion: when file ends with \n\n and cursor is on first \n: we should be able to move upwards from here too 2025-09-23 08:54:19 +01:00
0b0d5268fc handle edge case when deleting by DFA: when we are deleting to the end of the file and if cursor is on first character after newline, then we also want to delete preceding newline too. Or else we will end up with two newlines at the end of the file, which is not what we want. 2025-09-23 07:18:58 +01:00
ec10f3e025 tiny amount of formatting 2025-09-23 07:04:41 +01:00
9174e4923c don't deleteByDfa when buffer's length is 1, because that would mean that we would be deleting last newline in file 2025-09-23 07:04:20 +01:00
02ada5765b improve 'MakeNormalDelete.deleteByDfa' function by refraining from deleting the unix-style line ending, if DFA takes us past the ending 2025-09-23 06:09:03 +01:00
cb0dec93a0 simplify implementation of 'MakeNormalDelete.deleteLine 2025-09-22 13:02:08 +01:00
e3148e6ac1 when deleting using a DFA motion, make sure we have a linebreak at the end so that we still have unix-style line endings as an invariant 2025-09-22 12:41:33 +01:00
351f7e9bf9 fix edge case with 'd$' motion: if deleting to end of file, we need to append two newlines 2025-09-22 12:28:08 +01:00
6f968ee8e5 in 'dk' motion, make sure we move the cursor to the start of the previous line in all cases 2025-09-22 09:46:43 +01:00
e6ea96f995 fix bug in 'k' motion: when we move from any other line to line 0, always unconditionally decrement column by 1 2025-09-22 07:02:20 +01:00
3128647a5f reimplement 'k' motion so that newlines which are immediately preceded by non-newline chars are skipped 2025-09-22 06:49:00 +01:00
5315aff600 reimplement 'j' motion so that newline is skipped only if immediately preceded by char 2025-09-22 05:32:03 +01:00
639f71009c done reimplementing 'MakeNormalDelete.deleteLineBack', taking care of cases where we use this motion while on the first line or on the last 2025-09-21 16:40:05 +01:00
3ea44d9725 progress reimplementing 'NormalDelete.deleteLineBack' function 2025-09-21 15:45:14 +01:00
6af2b58b0f make 'dl' motion (including count) call the same function as the 'x' motion, because they have identical behaviour. 2025-09-21 00:22:24 +01:00
2758b864bc fix bug found by unit test: when deleting leftwards, we should never delete beyond the end of the line 2025-09-20 18:04:59 +01:00
c29afbdb7c fix minor bug regarding 'NormalMove.moveCursorDown': after a <count-j> that moved the cursor to the last line in the buffer, the cursor would be at the last column too, even if that wasn't the previous column. To address this issue, we take out code that calculates the lineIdx from the 'NormalMove.finishMoveCursorUpDown' function, and have both 'NormalMove.moveCursorUp' and 'NormalMove.moveCursorDown' calculate their own lineIdx in different ways and pass it to the 'NormalMove.finishMoveCursorUpAndDown' function. 2025-09-20 02:58:51 +01:00
090e7ccea2 pass 'maxLength' value to TextScroll function so that we can prevent scrolling past the bottom of the file (unless we want to od so by centtering the screen) 2025-09-19 23:17:28 +01:00
d3fa4d08bf extract reusable function containing common code previously used in both 'NormalMove.moveCursorUp' and 'NormalMove.moveCursorDown' functions, and make them call the reusable function instead 2025-09-19 22:40:29 +01:00
859860b19f reimplement vi's 'j' motion, and remove the original function for this motion which was in cursor.sml 2025-09-19 22:33:37 +01:00
9ec8891ce5 fix bugs in new function for moving cursor upwards, taking care to calculate column different if on first line (where there is no preceding newline) vs any line other than the first 2025-09-19 05:23:20 +01:00
4c1a76ae67 begin reimplementing motion to move cursor up (vi's 'k' command), although it is in progress and buggy 2025-09-19 04:59:40 +01:00
e4e3961d41 in NormalMove.moveToLine function, use new LineGap function, 'LineGap.lineNumberToIdx', to get the index a line is at, and delete the Cursor.getLineStartIdx' function which we no longer need, as that functionality is in brolib-sml itself. 2025-09-19 04:45:29 +01:00
b6244d4962 amend motion to move to a line: if the requested line has a linebreak as the next character after it, stay at the current position, or else add 1 to the linebreak's idx so that we go to the first character of the line 2025-09-19 04:03:54 +01:00
dbf05ec8dc refactor Cursor.viH to use DFA 2025-09-17 10:45:37 +01:00
9ddb5f68d7 fix bugs in vi-l-dfa (we want to stop looping when the counter is ~1, because the starting character will likely be final/a not-newline, and we want to loop at least once; also, we want to special case 'twoNewlineState' as a final case which causes us to go backwards by 1 instead of treating 'oneNewlineState' as a final/special case). We also modify other code to use the new vi-l implementation in the program. 2025-09-17 03:52:31 +01:00
1adb74df2c pull in new brolib-sml changes (which just changes one particular function's name to be clearer), and modify code to use the correct name 2025-09-16 22:20:55 +01:00
c4fedc6434 fix 'Cursor.getLineStartIdx' function, which should look at the left nodes if there is no relevant line in this node 2025-09-16 22:09:15 +01:00
12478f8ac2 remove references to 'Cursor.clipIdx' and delete that function once it is no longer used 2025-09-16 16:08:01 +01:00
19d2235686 refactor 'MakeNormalDelete.removeLineBreaks' function to remove function call to 'Cursor.clipIdx', instead relying on textLength field in buffer 2025-09-16 15:53:41 +01:00
148b108062 when using 'G' command to move to end fo file, use the 'textLength' field to calculate the new bufferIdx, which is more sensible than using the LineGap's idx for the same purpose 2025-09-16 07:52:47 +01:00
3d9bf962e7 handle additional deleteLine edge case 2025-09-16 07:40:58 +01:00
70ffea21b3 fix the last MakeNormalDelete.deleteLine bug: if we delete such that the startIdx (prior to deletion) becomes longer than the text in the buffer, we move the cursor to the start of the last line 2025-09-16 07:01:55 +01:00
6507b9d49c adjust MakeNormalDelete.deleteLine implementation slightly, because the previous implementation did not delete the last character when we are at the end of the file 2025-09-16 06:29:35 +01:00
9b34014af1 a few bug fixes to NORMAL_SEARCH_MODE: the main one is that we were passing the general searchString to the resize function before, and we were drawing the wrong string because of that; another bug fix is that, on resizing, we have to update the mode to contain the recalculated searchScrollColumn 2025-09-14 10:28:42 +01:00
0632f7a969 add horizontal scrolling functionality to SearchBar 2025-09-14 10:07:43 +01:00
f1a06f946d add searchScrollColumn to NORMAL_SEARCH_MODE variant, and update and recalculate it where needed 2025-09-14 09:50:07 +01:00
428208f9bf when text is wide enough to be centered, also centre the search bar 2025-09-14 09:14:22 +01:00
7a388f2983 add TextScroll function for centering line to cursor, and use it in 'NormalFinish.centreToCursor' function 2025-09-13 18:23:55 +01:00