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95a4f109bd
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progress reimplementing 'j' motion to pass new tests
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2025-09-23 15:22:49 +01:00 |
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fcc8c8085a
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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)
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2025-09-23 11:57:19 +01:00 |
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5d20b81bcc
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adjust functor to move by dfa so that we cannot go to the last char of the file if (last char is a newline and is preceded by a non-newline), but otherwise we can go to the last char of the file.
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2025-09-23 11:47:25 +01:00 |
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4f20379219
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take care of a few tests after refactoring/making a different design decision
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2025-09-23 11:04:47 +01:00 |
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961ce63023
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begin refactoring to let cursor move to very last char of file (including unix line ending)
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2025-09-23 10:50:10 +01:00 |
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8931d4d071
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fix minor compilation error introduced in previous commit
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2025-09-23 09:29:02 +01:00 |
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ec462a4df7
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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
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2025-09-23 09:27:13 +01:00 |
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21e12addf3
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in text builders, check when on newline if this is the second last character in the file, and draw it on a newline if so. This is to align with the design decision that we want the second-last character to be selectable
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2025-09-23 09:16:02 +01:00 |
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505521f5e2
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minor cosmetic change
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2025-09-23 09:04:18 +01:00 |
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c9365076ad
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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
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2025-09-23 08:54:19 +01:00 |
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79d232df7a
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amend very minor bug: when looping through DFA and hitting a 'final state', we let the next chr afterwards handle the start state, but we want the current char to handle the start state instead, as this matches vim's behaviour
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2025-09-23 07:36:51 +01:00 |
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0b0d5268fc
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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.
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2025-09-23 07:18:58 +01:00 |
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ec10f3e025
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tiny amount of formatting
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2025-09-23 07:04:41 +01:00 |
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9174e4923c
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don't deleteByDfa when buffer's length is 1, because that would mean that we would be deleting last newline in file
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2025-09-23 07:04:20 +01:00 |
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02ada5765b
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improve 'MakeNormalDelete.deleteByDfa' function by refraining from deleting the unix-style line ending, if DFA takes us past the ending
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2025-09-23 06:09:03 +01:00 |
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cb0dec93a0
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simplify implementation of 'MakeNormalDelete.deleteLine
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2025-09-22 13:02:08 +01:00 |
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e3148e6ac1
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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
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2025-09-22 12:41:33 +01:00 |
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351f7e9bf9
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fix edge case with 'd$' motion: if deleting to end of file, we need to append two newlines
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2025-09-22 12:28:08 +01:00 |
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6f968ee8e5
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in 'dk' motion, make sure we move the cursor to the start of the previous line in all cases
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2025-09-22 09:46:43 +01:00 |
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e6ea96f995
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fix bug in 'k' motion: when we move from any other line to line 0, always unconditionally decrement column by 1
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2025-09-22 07:02:20 +01:00 |
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3128647a5f
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reimplement 'k' motion so that newlines which are immediately preceded by non-newline chars are skipped
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2025-09-22 06:49:00 +01:00 |
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5315aff600
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reimplement 'j' motion so that newline is skipped only if immediately preceded by char
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2025-09-22 05:32:03 +01:00 |
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cdc23945a5
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reimplement vi's 'h' movement, so that we only skip newline characters that immediately follow a non-newline
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2025-09-21 21:36:59 +01:00 |
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d63201ada7
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reimplement vi's 'l' motion so that we only skip a newline when it is preceded by a non-newline character
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2025-09-21 17:49:30 +01:00 |
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639f71009c
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done reimplementing 'MakeNormalDelete.deleteLineBack', taking care of cases where we use this motion while on the first line or on the last
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2025-09-21 16:40:05 +01:00 |
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3ea44d9725
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progress reimplementing 'NormalDelete.deleteLineBack' function
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2025-09-21 15:45:14 +01:00 |
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6af2b58b0f
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make 'dl' motion (including count) call the same function as the 'x' motion, because they have identical behaviour.
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2025-09-21 00:22:24 +01:00 |
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2758b864bc
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fix bug found by unit test: when deleting leftwards, we should never delete beyond the end of the line
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2025-09-20 18:04:59 +01:00 |
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c29afbdb7c
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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.
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2025-09-20 02:58:51 +01:00 |
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090e7ccea2
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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)
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2025-09-19 23:17:28 +01:00 |
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d3fa4d08bf
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extract reusable function containing common code previously used in both 'NormalMove.moveCursorUp' and 'NormalMove.moveCursorDown' functions, and make them call the reusable function instead
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2025-09-19 22:40:29 +01:00 |
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859860b19f
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reimplement vi's 'j' motion, and remove the original function for this motion which was in cursor.sml
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2025-09-19 22:33:37 +01:00 |
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2c88341c37
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remove code which became dead after reimplementing vi's 'k' motion
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2025-09-19 05:27:10 +01:00 |
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9ec8891ce5
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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
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2025-09-19 05:23:20 +01:00 |
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4c1a76ae67
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begin reimplementing motion to move cursor up (vi's 'k' command), although it is in progress and buggy
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2025-09-19 04:59:40 +01:00 |
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e4e3961d41
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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.
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2025-09-19 04:45:29 +01:00 |
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b6244d4962
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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
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2025-09-19 04:03:54 +01:00 |
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d871ac451f
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restore temp.txt to previous state, as it was temporarily being edited for testing
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2025-09-19 03:04:10 +01:00 |
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ab2f2cc752
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simplify 'vi-hl-dfa's DFA, removing one state
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2025-09-19 02:40:14 +01:00 |
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ad7d103f61
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rename 'ViLDfa' structure to 'ViHlDfa' since this DFA implements both vi's 'h' motion and vi's 'l' motion
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2025-09-17 11:02:11 +01:00 |
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dbf05ec8dc
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refactor Cursor.viH to use DFA
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2025-09-17 10:45:37 +01:00 |
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9ddb5f68d7
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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.
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2025-09-17 03:52:31 +01:00 |
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5174a5b0a4
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adjustments to vi-l-dfa: we should accept a single-newline as a final state, but not a double-newline
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2025-09-17 02:35:32 +01:00 |
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161caee62a
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create DFA for Vi's 'l' motion
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2025-09-17 02:31:38 +01:00 |
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c94aa72015
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create 'MakeIfCharFolderNext' functor, which mirrors the 'MakeIfCharFolderPrev' functor that we already have
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2025-09-17 02:20:36 +01:00 |
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97936b83a0
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in TextBuilder functions, when we encounter a newline, we want any cursor here to be drawn after a linebreak (after the posX and posY values go to the next line) and not before
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2025-09-16 22:29:19 +01:00 |
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1adb74df2c
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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
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2025-09-16 22:20:55 +01:00 |
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c4fedc6434
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fix 'Cursor.getLineStartIdx' function, which should look at the left nodes if there is no relevant line in this node
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2025-09-16 22:09:15 +01:00 |
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96521f358f
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when looping through a DFA in a functor, make sure we return the absolute index to the calling function and not a modified version of the absolute index which has already been clipped
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2025-09-16 21:35:48 +01:00 |
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12478f8ac2
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remove references to 'Cursor.clipIdx' and delete that function once it is no longer used
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2025-09-16 16:08:01 +01:00 |
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