{"header":{"message":"extract a couple of files","description":null,"timestamp":"2022-06-03T21:14:53Z","authors":[{"email":"vc@akkartik.com","name":"Kartik K. Agaram"}]},"hash":"LXTTOB33N2HCUZFIUDRQGGBVHK2HODRG4NBLH6RXRQZDCHF27BSAC","authors":[],"deps":{"hashes":[["LXTTOB33N2HCUZFIUDRQGGBVHK2HODRG4NBLH6RXRQZDCHF27BSAC","extract a couple of files"],["AA",null],["EWQ2VRMSOF4JOGWEF7W3CURXM3QSQY7SK6TGULPWG77ENA4XFUKQC","clean up test progress indicators"],["IRJKWZWN6QV3QJGO234WCE6TKLZ2NKL2QNAKPQK25PHRFUJH5UQQC","."],["ORQKYYD7SUJKJYGIU5TNL5EASXQG3VRGCKHLB5YDXBWB2RPBA7CAC","."],["LS55YKGWKICTQTAHR5KLMNDOL6CDI4ATT3NT5Z2YL5IM3CRQOONQC","switch copy/paste to ctrl- hotkeys"],["5FW7YOFTLKHRND6IOR4HG4X3C5BO2WV5KTEUW3PPKCRU5L5GXKXQC","highlight selection while dragging"],["NP7PIUBTR4K6SWJS46YZG3H2RYYNRGNEJMPV4I24TQXT5O3YT27QC","bugfix: restore state after C-f (find)"],["QYIFOHW3WDDQMK4ATY6IOSQRFHJOQ5QCPDKRC4GVGWLQEH4HGWVQC","first test!"],["BULPIBEGL7TMK6CVIE7IS7WGAHGOSUJBGJSFQK542MOWGHP2ADQQC","beginnings of a module for the text editor"],["XNFTJHC4QSHNSIWNN7K6QZEZ37GTQYKHS4EPNSVPQCUSWREROGIQC","split keyboard handling between Text and 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major tests for text editing flows"},{"Add":"-- This still isn't quite as thorough as I'd like."},{"Add":""},{"Add":"function test_draw_text()"},{"Add":" io.write('\\ntest_draw_text')"},{"Add":" App.screen.init{width=120, height=60}"},{"Add":" Lines = load_array{'abc', 'def', 'ghi'}"},{"Add":" Line_width = App.screen.width"},{"Add":" Cursor1 = {line=1, pos=1}"},{"Add":" Screen_top1 = {line=1, pos=1}"},{"Add":" Screen_bottom1 = {}"},{"Add":" App.draw()"},{"Add":" local y = Margin_top"},{"Add":" App.screen.check(y, 'abc', 'F - test_draw_text/screen:1')"},{"Add":" y = y + Line_height"},{"Add":" App.screen.check(y, 'def', 'F - test_draw_text/screen:2')"},{"Add":" y = y + Line_height"},{"Add":" App.screen.check(y, 'ghi', 'F - test_draw_text/screen:3')"},{"Add":"end"},{"Add":""},{"Add":"function test_draw_wrapping_text()"},{"Add":" io.write('\\ntest_draw_wrapping_text')"},{"Add":" App.screen.init{width=50, height=60}"},{"Add":" Lines = load_array{'abc', 'defgh', 'xyz'}"},{"Add":" Line_width = App.screen.width"},{"Add":" Cursor1 = {line=1, pos=1}"},{"Add":" Screen_top1 = {line=1, pos=1}"},{"Add":" Screen_bottom1 = {}"},{"Add":" App.draw()"},{"Add":" local y = Margin_top"},{"Add":" App.screen.check(y, 'abc', 'F - test_draw_wrapping_text/screen:1')"},{"Add":" y = y + Line_height"},{"Add":" App.screen.check(y, 'def', 'F - test_draw_wrapping_text/screen:2')"},{"Add":" y = y + Line_height"},{"Add":" App.screen.check(y, 'gh', 'F - test_draw_wrapping_text/screen:3')"},{"Add":"end"},{"Add":""},{"Add":"function test_draw_word_wrapping_text()"},{"Add":" io.write('\\ntest_draw_word_wrapping_text')"},{"Add":" App.screen.init{width=60, height=60}"},{"Add":" Lines = load_array{'abc def ghi', 'jkl'}"},{"Add":" Line_width = App.screen.width"},{"Add":" Cursor1 = {line=1, pos=1}"},{"Add":" Screen_top1 = {line=1, pos=1}"},{"Add":" Screen_bottom1 = {}"},{"Add":" App.draw()"},{"Add":" local y = Margin_top"},{"Add":" App.screen.check(y, 'abc ', 'F - test_draw_word_wrapping_text/screen:1')"},{"Add":" y = y + Line_height"},{"Add":" App.screen.check(y, 'def ', 'F - test_draw_word_wrapping_text/screen:2')"},{"Add":" y = y + Line_height"},{"Add":" App.screen.check(y, 'ghi', 'F - test_draw_word_wrapping_text/screen:3')"},{"Add":"end"},{"Add":""},{"Add":"function test_draw_text_wrapping_within_word()"},{"Add":" -- arrange a screen line that needs to be split within a word"},{"Add":" io.write('\\ntest_draw_text_wrapping_within_word')"},{"Add":" App.screen.init{width=60, height=60}"},{"Add":" Lines = load_array{'abcd e fghijk', 'xyz'}"},{"Add":" Line_width = App.screen.width"},{"Add":" Cursor1 = {line=1, pos=1}"},{"Add":" Screen_top1 = {line=1, pos=1}"},{"Add":" Screen_bottom1 = {}"},{"Add":" App.draw()"},{"Add":" local y = Margin_top"},{"Add":" App.screen.check(y, 'abcd ', 'F - test_draw_text_wrapping_within_word/screen:1')"},{"Add":" y = y + Line_height"},{"Add":" App.screen.check(y, 'e fghi', 'F - test_draw_text_wrapping_within_word/screen:2')"},{"Add":" y = y + Line_height"},{"Add":" App.screen.check(y, 'jk', 'F - test_draw_text_wrapping_within_word/screen:3')"},{"Add":"end"},{"Add":""},{"Add":"function test_edit_wrapping_text()"},{"Add":" io.write('\\ntest_edit_wrapping_text')"},{"Add":" App.screen.init{width=50, height=60}"},{"Add":" Lines = load_array{'abc', 'def', 'xyz'}"},{"Add":" Line_width = App.screen.width"},{"Add":" Cursor1 = {line=2, pos=4}"},{"Add":" Screen_top1 = {line=1, pos=1}"},{"Add":" Screen_bottom1 = {}"},{"Add":" App.run_after_textinput('g')"},{"Add":" App.run_after_textinput('h')"},{"Add":" App.run_after_textinput('i')"},{"Add":" App.run_after_textinput('j')"},{"Add":" App.run_after_textinput('k')"},{"Add":" App.run_after_textinput('l')"},{"Add":" local y = Margin_top"},{"Add":" App.screen.check(y, 'abc', 'F - test_edit_wrapping_text/screen:1')"},{"Add":" y = y + Line_height"},{"Add":" App.screen.check(y, 'def', 'F - test_edit_wrapping_text/screen:2')"},{"Add":" y = y + Line_height"},{"Add":" App.screen.check(y, 'ghij', 'F - test_edit_wrapping_text/screen:3')"},{"Add":"end"},{"Add":""},{"Add":"function test_insert_newline()"},{"Add":" io.write('\\ntest_insert_newline')"},{"Add":" -- display a few lines with cursor on bottom line"},{"Add":" App.screen.init{width=25+30, height=60}"},{"Add":" Lines = load_array{'abc', 'def', 'ghi', 'jkl'}"},{"Add":" Line_width = App.screen.width"},{"Add":" Cursor1 = {line=1, pos=2}"},{"Add":" Screen_top1 = {line=1, pos=1}"},{"Add":" Screen_bottom1 = {}"},{"Add":" App.draw()"},{"Add":" local y = Margin_top"},{"Add":" App.screen.check(y, 'abc', 'F - test_insert_newline/baseline/screen:1')"},{"Add":" y = y + Line_height"},{"Add":" App.screen.check(y, 'def', 'F - test_insert_newline/baseline/screen:2')"},{"Add":" y = y + Line_height"},{"Add":" App.screen.check(y, 'ghi', 'F - test_insert_newline/baseline/screen:3')"},{"Add":" -- after hitting the enter key the screen scrolls down"},{"Add":" App.run_after_keychord('return')"},{"Add":" check_eq(Screen_top1.line, 1, 'F - test_insert_newline/screen_top')"},{"Add":" check_eq(Cursor1.line, 2, 'F - test_insert_newline/cursor:line')"},{"Add":" check_eq(Cursor1.pos, 1, 'F - test_insert_newline/cursor:pos')"},{"Add":" y = Margin_top"},{"Add":" App.screen.check(y, 'a', 'F - test_insert_newline/screen:1')"},{"Add":" y = y + Line_height"},{"Add":" App.screen.check(y, 'bc', 'F - test_insert_newline/screen:2')"},{"Add":" y = y + Line_height"},{"Add":" App.screen.check(y, 'def', 'F - test_insert_newline/screen:3')"},{"Add":"end"},{"Add":""},{"Add":"function test_insert_from_clipboard()"},{"Add":" io.write('\\ntest_insert_from_clipboard')"},{"Add":" -- display a few lines with cursor on bottom line"},{"Add":" App.screen.init{width=25+30, height=60}"},{"Add":" Lines = load_array{'abc', 'def', 'ghi', 'jkl'}"},{"Add":" Line_width = App.screen.width"},{"Add":" Cursor1 = {line=1, pos=2}"},{"Add":" Screen_top1 = {line=1, pos=1}"},{"Add":" Screen_bottom1 = {}"},{"Add":" App.draw()"},{"Add":" local y = Margin_top"},{"Add":" App.screen.check(y, 'abc', 'F - test_insert_from_clipboard/baseline/screen:1')"},{"Add":" y = y + Line_height"},{"Add":" App.screen.check(y, 'def', 'F - test_insert_from_clipboard/baseline/screen:2')"},{"Add":" y = y + Line_height"},{"Add":" App.screen.check(y, 'ghi', 'F - test_insert_from_clipboard/baseline/screen:3')"},{"Add":" -- after hitting the enter key the screen scrolls down"},{"Add":" App.clipboard = 'xy\\nz'"},{"Add":" App.run_after_keychord('C-v')"},{"Add":" check_eq(Screen_top1.line, 1, 'F - test_insert_from_clipboard/screen_top')"},{"Add":" check_eq(Cursor1.line, 2, 'F - test_insert_from_clipboard/cursor:line')"},{"Add":" check_eq(Cursor1.pos, 2, 'F - test_insert_from_clipboard/cursor:pos')"},{"Add":" y = Margin_top"},{"Add":" App.screen.check(y, 'axy', 'F - test_insert_from_clipboard/screen:1')"},{"Add":" y = y + Line_height"},{"Add":" App.screen.check(y, 'zbc', 'F - test_insert_from_clipboard/screen:2')"},{"Add":" y = y + Line_height"},{"Add":" App.screen.check(y, 'def', 'F - test_insert_from_clipboard/screen:3')"},{"Add":"end"},{"Add":""},{"Add":"function test_move_cursor_using_mouse()"},{"Add":" io.write('\\ntest_move_cursor_using_mouse')"},{"Add":" App.screen.init{width=50, height=60}"},{"Add":" Lines = load_array{'abc', 'def', 'xyz'}"},{"Add":" Line_width = App.screen.width"},{"Add":" Cursor1 = {line=1, pos=1}"},{"Add":" Screen_top1 = {line=1, pos=1}"},{"Add":" Screen_bottom1 = {}"},{"Add":" App.draw() -- populate line.y for each line in Lines"},{"Add":" local screen_left_margin = 25 -- pixels"},{"Add":" App.run_after_mouserelease(screen_left_margin+8,Margin_top+5, '1')"},{"Add":" check_eq(Cursor1.line, 1, 'F - test_move_cursor_using_mouse/cursor:line')"},{"Add":" check_eq(Cursor1.pos, 2, 'F - test_move_cursor_using_mouse/cursor:pos')"},{"Add":"end"},{"Add":""},{"Add":"function test_pagedown()"},{"Add":" io.write('\\ntest_pagedown')"},{"Add":" App.screen.init{width=120, height=45}"},{"Add":" Lines = load_array{'abc', 'def', 'ghi'}"},{"Add":" Line_width = App.screen.width"},{"Add":" Cursor1 = {line=1, pos=1}"},{"Add":" Screen_top1 = {line=1, pos=1}"},{"Add":" Screen_bottom1 = {}"},{"Add":" -- initially the first two lines are displayed"},{"Add":" App.draw()"},{"Add":" local y = Margin_top"},{"Add":" App.screen.check(y, 'abc', 'F - test_pagedown/baseline/screen:1')"},{"Add":" y = y + Line_height"},{"Add":" App.screen.check(y, 'def', 'F - test_pagedown/baseline/screen:2')"},{"Add":" -- after pagedown the bottom line becomes the top"},{"Add":" App.run_after_keychord('pagedown')"},{"Add":" check_eq(Screen_top1.line, 2, 'F - test_pagedown/screen_top')"},{"Add":" check_eq(Cursor1.line, 2, 'F - test_pagedown/cursor')"},{"Add":" y = Margin_top"},{"Add":" App.screen.check(y, 'def', 'F - test_pagedown/screen:1')"},{"Add":" y = y + Line_height"},{"Add":" App.screen.check(y, 'ghi', 'F - test_pagedown/screen:2')"},{"Add":"end"},{"Add":""},{"Add":"function test_pagedown_skips_drawings()"},{"Add":" io.write('\\ntest_pagedown_skips_drawings')"},{"Add":" -- some lines of text with a drawing intermixed"},{"Add":" App.screen.init{width=50, height=80}"},{"Add":" Lines = load_array{'abc', -- height 15"},{"Add":" '```lines', '```', -- height 25"},{"Add":" 'def', -- height 15"},{"Add":" 'ghi'} -- height 15"},{"Add":" check_eq(Lines[2].mode, 'drawing', 'F - test_pagedown_skips_drawings/baseline/lines')"},{"Add":" Line_width = App.screen.width"},{"Add":" Cursor1 = {line=1, pos=1}"},{"Add":" Screen_top1 = {line=1, pos=1}"},{"Add":" Screen_bottom1 = {}"},{"Add":" local drawing_height = 20 + App.screen.width / 2 -- default"},{"Add":" -- initially the screen displays the first line and the drawing"},{"Add":" -- 15px margin + 15px line1 + 10px margin + 25px drawing + 10px margin = 75px < screen height 80px"},{"Add":" App.draw()"},{"Add":" local y = Margin_top"},{"Add":" App.screen.check(y, 'abc', 'F - test_pagedown_skips_drawings/baseline/screen:1')"},{"Add":" -- after pagedown the screen draws the drawing up top"},{"Add":" -- 15px margin + 10px margin + 25px drawing + 10px margin + 15px line3 = 75px < screen height 80px"},{"Add":" App.run_after_keychord('pagedown')"},{"Add":" check_eq(Screen_top1.line, 2, 'F - test_pagedown_skips_drawings/screen_top')"},{"Add":" check_eq(Cursor1.line, 3, 'F - test_pagedown_skips_drawings/cursor')"},{"Add":" y = Margin_top + drawing_height"},{"Add":" App.screen.check(y, 'def', 'F - test_pagedown_skips_drawings/screen:1')"},{"Add":"end"},{"Add":""},{"Add":"function test_pagedown_shows_one_screen_line_in_common()"},{"Add":" io.write('\\ntest_pagedown_shows_one_screen_line_in_common')"},{"Add":" -- some lines of text with a drawing intermixed"},{"Add":" App.screen.init{width=50, height=60}"},{"Add":" Lines = load_array{'abc', 'def ghi jkl', 'mno'}"},{"Add":" Line_width = App.screen.width"},{"Add":" Cursor1 = {line=1, pos=1}"},{"Add":" Screen_top1 = {line=1, pos=1}"},{"Add":" Screen_bottom1 = {}"},{"Add":" App.draw()"},{"Add":" local y = Margin_top"},{"Add":" App.screen.check(y, 'abc', 'F - test_pagedown_shows_one_screen_line_in_common/baseline/screen:1')"},{"Add":" y = y + Line_height"},{"Add":" App.screen.check(y, 'def ', 'F - test_pagedown_shows_one_screen_line_in_common/baseline/screen:2')"},{"Add":" y = y + Line_height"},{"Add":" App.screen.check(y, 'ghi ', 'F - test_pagedown_shows_one_screen_line_in_common/baseline/screen:3')"},{"Add":" -- after pagedown the bottom screen line becomes the top"},{"Add":" App.run_after_keychord('pagedown')"},{"Add":" check_eq(Screen_top1.line, 2, 'F - test_pagedown_shows_one_screen_line_in_common/screen_top:line')"},{"Add":" check_eq(Screen_top1.pos, 5, 'F - test_pagedown_shows_one_screen_line_in_common/screen_top:pos')"},{"Add":" check_eq(Cursor1.line, 2, 'F - test_pagedown_shows_one_screen_line_in_common/cursor:line')"},{"Add":" check_eq(Cursor1.pos, 5, 'F - test_pagedown_shows_one_screen_line_in_common/cursor:pos')"},{"Add":" y = Margin_top"},{"Add":" App.screen.check(y, 'ghi ', 'F - test_pagedown_shows_one_screen_line_in_common/screen:1')"},{"Add":" y = y + Line_height"},{"Add":" App.screen.check(y, 'jkl', 'F - test_pagedown_shows_one_screen_line_in_common/screen:2')"},{"Add":" y = y + Line_height"},{"Add":" App.screen.check(y, 'mn', 'F - test_pagedown_shows_one_screen_line_in_common/screen:3')"},{"Add":"end"},{"Add":""},{"Add":"function test_down_arrow_moves_cursor()"},{"Add":" io.write('\\ntest_down_arrow_moves_cursor')"},{"Add":" App.screen.init{width=120, height=60}"},{"Add":" Lines = load_array{'abc', 'def', 'ghi', 'jkl'}"},{"Add":" Line_width = App.screen.width"},{"Add":" Cursor1 = {line=1, pos=1}"},{"Add":" Screen_top1 = {line=1, pos=1}"},{"Add":" Screen_bottom1 = {}"},{"Add":" -- initially the first three lines are displayed"},{"Add":" App.draw()"},{"Add":" local y = Margin_top"},{"Add":" App.screen.check(y, 'abc', 'F - test_down_arrow_moves_cursor/baseline/screen:1')"},{"Add":" y = y + Line_height"},{"Add":" App.screen.check(y, 'def', 'F - test_down_arrow_moves_cursor/baseline/screen:2')"},{"Add":" y = y + Line_height"},{"Add":" App.screen.check(y, 'ghi', 'F - test_down_arrow_moves_cursor/baseline/screen:3')"},{"Add":" -- after hitting the down arrow, the cursor moves down by 1 line"},{"Add":" App.run_after_keychord('down')"},{"Add":" check_eq(Screen_top1.line, 1, 'F - test_down_arrow_moves_cursor/screen_top')"},{"Add":" check_eq(Cursor1.line, 2, 'F - test_down_arrow_moves_cursor/cursor')"},{"Add":" -- the screen is unchanged"},{"Add":" y = Margin_top"},{"Add":" App.screen.check(y, 'abc', 'F - test_down_arrow_moves_cursor/screen:1')"},{"Add":" y = y + Line_height"},{"Add":" App.screen.check(y, 'def', 'F - test_down_arrow_moves_cursor/screen:2')"},{"Add":" y = y + Line_height"},{"Add":" App.screen.check(y, 'ghi', 'F - test_down_arrow_moves_cursor/screen:3')"},{"Add":"end"},{"Add":""},{"Add":"function test_down_arrow_scrolls_down_by_one_line()"},{"Add":" io.write('\\ntest_down_arrow_scrolls_down_by_one_line')"},{"Add":" -- display the first three lines with the cursor on the bottom line"},{"Add":" App.screen.init{width=120, height=60}"},{"Add":" Lines = load_array{'abc', 'def', 'ghi', 'jkl'}"},{"Add":" Line_width = App.screen.width"},{"Add":" Cursor1 = {line=3, pos=1}"},{"Add":" Screen_top1 = {line=1, pos=1}"},{"Add":" Screen_bottom1 = {}"},{"Add":" App.draw()"},{"Add":" local y = Margin_top"},{"Add":" App.screen.check(y, 'abc', 'F - test_down_arrow_scrolls_down_by_one_line/baseline/screen:1')"},{"Add":" y = y + Line_height"},{"Add":" App.screen.check(y, 'def', 'F - test_down_arrow_scrolls_down_by_one_line/baseline/screen:2')"},{"Add":" y = y + Line_height"},{"Add":" App.screen.check(y, 'ghi', 'F - test_down_arrow_scrolls_down_by_one_line/baseline/screen:3')"},{"Add":" -- after hitting the down arrow the screen scrolls down by one line"},{"Add":" App.run_after_keychord('down')"},{"Add":" check_eq(Screen_top1.line, 2, 'F - test_down_arrow_scrolls_down_by_one_line/screen_top')"},{"Add":" check_eq(Cursor1.line, 4, 'F - test_down_arrow_scrolls_down_by_one_line/cursor')"},{"Add":" y = Margin_top"},{"Add":" App.screen.check(y, 'def', 'F - test_down_arrow_scrolls_down_by_one_line/screen:1')"},{"Add":" y = y + Line_height"},{"Add":" App.screen.check(y, 'ghi', 'F - test_down_arrow_scrolls_down_by_one_line/screen:2')"},{"Add":" y = y + Line_height"},{"Add":" App.screen.check(y, 'jkl', 'F - test_down_arrow_scrolls_down_by_one_line/screen:3')"},{"Add":"end"},{"Add":""},{"Add":"function test_down_arrow_scrolls_down_by_one_screen_line()"},{"Add":" io.write('\\ntest_down_arrow_scrolls_down_by_one_screen_line')"},{"Add":" -- display the first three lines with the cursor on the bottom line"},{"Add":" App.screen.init{width=25+30, height=60}"},{"Add":" Lines = load_array{'abc', 'def', 'ghi jkl', 'mno'}"},{"Add":" Line_width = App.screen.width"},{"Add":" Cursor1 = {line=3, pos=1}"},{"Add":" Screen_top1 = {line=1, pos=1}"},{"Add":" Screen_bottom1 = {}"},{"Add":" App.draw()"},{"Add":" local y = Margin_top"},{"Add":" App.screen.check(y, 'abc', 'F - test_down_arrow_scrolls_down_by_one_screen_line/baseline/screen:1')"},{"Add":" y = y + Line_height"},{"Add":" App.screen.check(y, 'def', 'F - test_down_arrow_scrolls_down_by_one_screen_line/baseline/screen:2')"},{"Add":" y = y + Line_height"},{"Add":" App.screen.check(y, 'ghi ', 'F - test_down_arrow_scrolls_down_by_one_screen_line/baseline/screen:3') -- line wrapping includes trailing whitespace"},{"Add":" -- after hitting the down arrow the screen scrolls down by one line"},{"Add":" App.run_after_keychord('down')"},{"Add":" check_eq(Screen_top1.line, 2, 'F - test_down_arrow_scrolls_down_by_one_screen_line/screen_top')"},{"Add":" check_eq(Cursor1.line, 3, 'F - test_down_arrow_scrolls_down_by_one_screen_line/cursor:line')"},{"Add":" check_eq(Cursor1.pos, 5, 'F - test_down_arrow_scrolls_down_by_one_screen_line/cursor:pos')"},{"Add":" y = Margin_top"},{"Add":" App.screen.check(y, 'def', 'F - test_down_arrow_scrolls_down_by_one_screen_line/screen:1')"},{"Add":" y = y + Line_height"},{"Add":" App.screen.check(y, 'ghi ', 'F - test_down_arrow_scrolls_down_by_one_screen_line/screen:2')"},{"Add":" y = y + Line_height"},{"Add":" App.screen.check(y, 'jkl', 'F - test_down_arrow_scrolls_down_by_one_screen_line/screen:3')"},{"Add":"end"},{"Add":""},{"Add":"function test_down_arrow_scrolls_down_by_one_screen_line_after_splitting_within_word()"},{"Add":" io.write('\\ntest_down_arrow_scrolls_down_by_one_screen_line_after_splitting_within_word')"},{"Add":" -- display the first three lines with the cursor on the bottom line"},{"Add":" App.screen.init{width=25+30, height=60}"},{"Add":" Lines = load_array{'abc', 'def', 'ghijkl', 'mno'}"},{"Add":" Line_width = App.screen.width"},{"Add":" Cursor1 = {line=3, pos=1}"},{"Add":" Screen_top1 = {line=1, pos=1}"},{"Add":" Screen_bottom1 = {}"},{"Add":" App.draw()"},{"Add":" local y = Margin_top"},{"Add":" App.screen.check(y, 'abc', 'F - test_down_arrow_scrolls_down_by_one_screen_line_after_splitting_within_word/baseline/screen:1')"},{"Add":" y = y + Line_height"},{"Add":" App.screen.check(y, 'def', 'F - test_down_arrow_scrolls_down_by_one_screen_line_after_splitting_within_word/baseline/screen:2')"},{"Add":" y = y + Line_height"},{"Add":" App.screen.check(y, 'ghijk', 'F - test_down_arrow_scrolls_down_by_one_screen_line_after_splitting_within_word/baseline/screen:3')"},{"Add":" -- after hitting the down arrow the screen scrolls down by one line"},{"Add":" App.run_after_keychord('down')"},{"Add":" check_eq(Screen_top1.line, 2, 'F - test_down_arrow_scrolls_down_by_one_screen_line_after_splitting_within_word/screen_top')"},{"Add":" check_eq(Cursor1.line, 3, 'F - test_down_arrow_scrolls_down_by_one_screen_line_after_splitting_within_word/cursor:line')"},{"Add":" check_eq(Cursor1.pos, 6, 'F - test_down_arrow_scrolls_down_by_one_screen_line_after_splitting_within_word/cursor:pos')"},{"Add":" y = Margin_top"},{"Add":" App.screen.check(y, 'def', 'F - test_down_arrow_scrolls_down_by_one_screen_line_after_splitting_within_word/screen:1')"},{"Add":" y = y + Line_height"},{"Add":" App.screen.check(y, 'ghijk', 'F - test_down_arrow_scrolls_down_by_one_screen_line_after_splitting_within_word/screen:2')"},{"Add":" y = y + Line_height"},{"Add":" App.screen.check(y, 'l', 'F - test_down_arrow_scrolls_down_by_one_screen_line_after_splitting_within_word/screen:3')"},{"Add":"end"},{"Add":""},{"Add":"function test_page_down_followed_by_down_arrow_does_not_scroll_screen_up()"},{"Add":" io.write('\\ntest_page_down_followed_by_down_arrow_does_not_scroll_screen_up')"},{"Add":" App.screen.init{width=25+30, height=60}"},{"Add":" Lines = load_array{'abc', 'def', 'ghijkl', 'mno'}"},{"Add":" Line_width = App.screen.width"},{"Add":" Cursor1 = {line=3, pos=1}"},{"Add":" Screen_top1 = {line=1, pos=1}"},{"Add":" Screen_bottom1 = {}"},{"Add":" App.draw()"},{"Add":" local y = Margin_top"},{"Add":" App.screen.check(y, 'abc', 'F - test_page_down_followed_by_down_arrow_does_not_scroll_screen_up/baseline/screen:1')"},{"Add":" y = y + Line_height"},{"Add":" App.screen.check(y, 'def', 'F - test_page_down_followed_by_down_arrow_does_not_scroll_screen_up/baseline/screen:2')"},{"Add":" y = y + Line_height"},{"Add":" App.screen.check(y, 'ghijk', 'F - test_page_down_followed_by_down_arrow_does_not_scroll_screen_up/baseline/screen:3')"},{"Add":" -- after hitting pagedown the screen scrolls down to start of a long line"},{"Add":" App.run_after_keychord('pagedown')"},{"Add":" check_eq(Screen_top1.line, 3, 'F - test_page_down_followed_by_down_arrow_does_not_scroll_screen_up/baseline2/screen_top')"},{"Add":" check_eq(Cursor1.line, 3, 'F - test_page_down_followed_by_down_arrow_does_not_scroll_screen_up/baseline2/cursor:line')"},{"Add":" check_eq(Cursor1.pos, 1, 'F - test_page_down_followed_by_down_arrow_does_not_scroll_screen_up/baseline2/cursor:pos')"},{"Add":" -- after hitting down arrow the screen doesn't scroll down further, and certainly doesn't scroll up"},{"Add":" App.run_after_keychord('down')"},{"Add":" check_eq(Screen_top1.line, 3, 'F - test_page_down_followed_by_down_arrow_does_not_scroll_screen_up/screen_top')"},{"Add":" check_eq(Cursor1.line, 3, 'F - test_page_down_followed_by_down_arrow_does_not_scroll_screen_up/cursor:line')"},{"Add":" check_eq(Cursor1.pos, 6, 'F - test_page_down_followed_by_down_arrow_does_not_scroll_screen_up/cursor:pos')"},{"Add":" y = Margin_top"},{"Add":" App.screen.check(y, 'ghijk', 'F - test_page_down_followed_by_down_arrow_does_not_scroll_screen_up/screen:1')"},{"Add":" y = y + Line_height"},{"Add":" App.screen.check(y, 'l', 'F - test_page_down_followed_by_down_arrow_does_not_scroll_screen_up/screen:2')"},{"Add":" y = y + Line_height"},{"Add":" App.screen.check(y, 'mno', 'F - test_page_down_followed_by_down_arrow_does_not_scroll_screen_up/screen:3')"},{"Add":"end"},{"Add":""},{"Add":"function test_up_arrow_moves_cursor()"},{"Add":" io.write('\\ntest_up_arrow_moves_cursor')"},{"Add":" -- display the first 3 lines with the cursor on the bottom line"},{"Add":" App.screen.init{width=120, height=60}"},{"Add":" Lines = load_array{'abc', 'def', 'ghi', 'jkl'}"},{"Add":" Line_width = 120"},{"Add":" Cursor1 = {line=3, pos=1}"},{"Add":" Screen_top1 = {line=1, pos=1}"},{"Add":" Screen_bottom1 = {}"},{"Add":" App.draw()"},{"Add":" local y = Margin_top"},{"Add":" App.screen.check(y, 'abc', 'F - test_up_arrow_moves_cursor/baseline/screen:1')"},{"Add":" y = y + Line_height"},{"Add":" App.screen.check(y, 'def', 'F - test_up_arrow_moves_cursor/baseline/screen:2')"},{"Add":" y = y + Line_height"},{"Add":" App.screen.check(y, 'ghi', 'F - test_up_arrow_moves_cursor/baseline/screen:3')"},{"Add":" -- after hitting the up arrow the cursor moves up by 1 line"},{"Add":" App.run_after_keychord('up')"},{"Add":" check_eq(Screen_top1.line, 1, 'F - test_up_arrow_moves_cursor/screen_top')"},{"Add":" check_eq(Cursor1.line, 2, 'F - test_up_arrow_moves_cursor/cursor')"},{"Add":" -- the screen is unchanged"},{"Add":" y = Margin_top"},{"Add":" App.screen.check(y, 'abc', 'F - test_up_arrow_moves_cursor/screen:1')"},{"Add":" y = y + Line_height"},{"Add":" App.screen.check(y, 'def', 'F - test_up_arrow_moves_cursor/screen:2')"},{"Add":" y = y + Line_height"},{"Add":" App.screen.check(y, 'ghi', 'F - test_up_arrow_moves_cursor/screen:3')"},{"Add":"end"},{"Add":""},{"Add":"function test_up_arrow_scrolls_up_by_one_line()"},{"Add":" io.write('\\ntest_up_arrow_scrolls_up_by_one_line')"},{"Add":" -- display the lines 2/3/4 with the cursor on line 2"},{"Add":" App.screen.init{width=120, height=60}"},{"Add":" Lines = load_array{'abc', 'def', 'ghi', 'jkl'}"},{"Add":" Line_width = 120"},{"Add":" Cursor1 = {line=2, pos=1}"},{"Add":" Screen_top1 = {line=2, pos=1}"},{"Add":" Screen_bottom1 = {}"},{"Add":" App.draw()"},{"Add":" local y = Margin_top"},{"Add":" App.screen.check(y, 'def', 'F - test_up_arrow_scrolls_up_by_one_line/baseline/screen:1')"},{"Add":" y = y + Line_height"},{"Add":" App.screen.check(y, 'ghi', 'F - test_up_arrow_scrolls_up_by_one_line/baseline/screen:2')"},{"Add":" y = y + Line_height"},{"Add":" App.screen.check(y, 'jkl', 'F - test_up_arrow_scrolls_up_by_one_line/baseline/screen:3')"},{"Add":" -- after hitting the up arrow the screen scrolls up by one line"},{"Add":" App.run_after_keychord('up')"},{"Add":" check_eq(Screen_top1.line, 1, 'F - test_up_arrow_scrolls_up_by_one_line/screen_top')"},{"Add":" check_eq(Cursor1.line, 1, 'F - test_up_arrow_scrolls_up_by_one_line/cursor')"},{"Add":" y = Margin_top"},{"Add":" App.screen.check(y, 'abc', 'F - test_up_arrow_scrolls_up_by_one_line/screen:1')"},{"Add":" y = y + Line_height"},{"Add":" App.screen.check(y, 'def', 'F - test_up_arrow_scrolls_up_by_one_line/screen:2')"},{"Add":" y = y + Line_height"},{"Add":" App.screen.check(y, 'ghi', 'F - test_up_arrow_scrolls_up_by_one_line/screen:3')"},{"Add":"end"},{"Add":""},{"Add":"function test_up_arrow_scrolls_up_by_one_screen_line()"},{"Add":" io.write('\\ntest_up_arrow_scrolls_up_by_one_screen_line')"},{"Add":" -- display lines starting from second screen line of a line"},{"Add":" App.screen.init{width=25+30, height=60}"},{"Add":" Lines = load_array{'abc', 'def', 'ghi jkl', 'mno'}"},{"Add":" Line_width = App.screen.width"},{"Add":" Cursor1 = {line=3, pos=6}"},{"Add":" Screen_top1 = {line=3, pos=5}"},{"Add":" Screen_bottom1 = {}"},{"Add":" App.draw()"},{"Add":" local y = Margin_top"},{"Add":" App.screen.check(y, 'jkl', 'F - test_up_arrow_scrolls_up_by_one_screen_line/baseline/screen:1')"},{"Add":" y = y + Line_height"},{"Add":" App.screen.check(y, 'mno', 'F - test_up_arrow_scrolls_up_by_one_screen_line/baseline/screen:2')"},{"Add":" -- after hitting the up arrow the screen scrolls up to first screen line"},{"Add":" App.run_after_keychord('up')"},{"Add":" y = Margin_top"},{"Add":" App.screen.check(y, 'ghi ', 'F - test_up_arrow_scrolls_up_by_one_screen_line/screen:1')"},{"Add":" y = y + Line_height"},{"Add":" App.screen.check(y, 'jkl', 'F - test_up_arrow_scrolls_up_by_one_screen_line/screen:2')"},{"Add":" y = y + Line_height"},{"Add":" App.screen.check(y, 'mno', 'F - test_up_arrow_scrolls_up_by_one_screen_line/screen:3')"},{"Add":" check_eq(Screen_top1.line, 3, 'F - test_up_arrow_scrolls_up_by_one_screen_line/screen_top')"},{"Add":" check_eq(Screen_top1.pos, 1, 'F - test_up_arrow_scrolls_up_by_one_screen_line/screen_top')"},{"Add":" check_eq(Cursor1.line, 3, 'F - test_up_arrow_scrolls_up_by_one_screen_line/cursor:line')"},{"Add":" check_eq(Cursor1.pos, 1, 'F - test_up_arrow_scrolls_up_by_one_screen_line/cursor:pos')"},{"Add":"end"},{"Add":""},{"Add":"function test_up_arrow_scrolls_up_to_final_screen_line()"},{"Add":" io.write('\\ntest_up_arrow_scrolls_up_to_final_screen_line')"},{"Add":" -- display lines starting just after a long line"},{"Add":" App.screen.init{width=25+30, height=60}"},{"Add":" Lines = load_array{'abc def', 'ghi', 'jkl', 'mno'}"},{"Add":" Line_width = App.screen.width"},{"Add":" Cursor1 = {line=2, pos=1}"},{"Add":" Screen_top1 = {line=2, pos=1}"},{"Add":" Screen_bottom1 = {}"},{"Add":" App.draw()"},{"Add":" local y = Margin_top"},{"Add":" App.screen.check(y, 'ghi', 'F - test_up_arrow_scrolls_up_to_final_screen_line/baseline/screen:1')"},{"Add":" y = y + Line_height"},{"Add":" App.screen.check(y, 'jkl', 'F - test_up_arrow_scrolls_up_to_final_screen_line/baseline/screen:2')"},{"Add":" y = y + Line_height"},{"Add":" App.screen.check(y, 'mno', 'F - test_up_arrow_scrolls_up_to_final_screen_line/baseline/screen:3')"},{"Add":" -- after hitting the up arrow the screen scrolls up to final screen line of previous line"},{"Add":" App.run_after_keychord('up')"},{"Add":" y = Margin_top"},{"Add":" App.screen.check(y, 'def', 'F - test_up_arrow_scrolls_up_to_final_screen_line/screen:1')"},{"Add":" y = y + Line_height"},{"Add":" App.screen.check(y, 'ghi', 'F - test_up_arrow_scrolls_up_to_final_screen_line/screen:2')"},{"Add":" y = y + Line_height"},{"Add":" App.screen.check(y, 'jkl', 'F - test_up_arrow_scrolls_up_to_final_screen_line/screen:3')"},{"Add":" check_eq(Screen_top1.line, 1, 'F - test_up_arrow_scrolls_up_to_final_screen_line/screen_top')"},{"Add":" check_eq(Screen_top1.pos, 5, 'F - test_up_arrow_scrolls_up_to_final_screen_line/screen_top')"},{"Add":" check_eq(Cursor1.line, 1, 'F - test_up_arrow_scrolls_up_to_final_screen_line/cursor:line')"},{"Add":" check_eq(Cursor1.pos, 5, 'F - test_up_arrow_scrolls_up_to_final_screen_line/cursor:pos')"},{"Add":"end"},{"Add":""},{"Add":"function test_up_arrow_scrolls_up_to_empty_line()"},{"Add":" io.write('\\ntest_up_arrow_scrolls_up_to_empty_line')"},{"Add":" -- display a screenful of text with an empty line just above it outside the screen"},{"Add":" App.screen.init{width=120, height=60}"},{"Add":" Lines = load_array{'', 'abc', 'def', 'ghi', 'jkl'}"},{"Add":" Line_width = 120"},{"Add":" Cursor1 = {line=2, pos=1}"},{"Add":" Screen_top1 = {line=2, pos=1}"},{"Add":" Screen_bottom1 = {}"},{"Add":" App.draw()"},{"Add":" local y = Margin_top"},{"Add":" App.screen.check(y, 'abc', 'F - test_up_arrow_scrolls_up_to_empty_line/baseline/screen:1')"},{"Add":" y = y + Line_height"},{"Add":" App.screen.check(y, 'def', 'F - test_up_arrow_scrolls_up_to_empty_line/baseline/screen:2')"},{"Add":" y = y + Line_height"},{"Add":" App.screen.check(y, 'ghi', 'F - test_up_arrow_scrolls_up_to_empty_line/baseline/screen:3')"},{"Add":" -- after hitting the up arrow the screen scrolls up by one line"},{"Add":" App.run_after_keychord('up')"},{"Add":" check_eq(Screen_top1.line, 1, 'F - test_up_arrow_scrolls_up_to_empty_line/screen_top')"},{"Add":" check_eq(Cursor1.line, 1, 'F - test_up_arrow_scrolls_up_to_empty_line/cursor')"},{"Add":" y = Margin_top"},{"Add":" -- empty first line"},{"Add":" y = y + Line_height"},{"Add":" App.screen.check(y, 'abc', 'F - test_up_arrow_scrolls_up_to_empty_line/screen:2')"},{"Add":" y = y + Line_height"},{"Add":" App.screen.check(y, 'def', 'F - test_up_arrow_scrolls_up_to_empty_line/screen:3')"},{"Add":"end"},{"Add":""},{"Add":"function test_pageup()"},{"Add":" io.write('\\ntest_pageup')"},{"Add":" App.screen.init{width=120, height=45}"},{"Add":" Lines = load_array{'abc', 'def', 'ghi'}"},{"Add":" Line_width = App.screen.width"},{"Add":" Cursor1 = {line=2, pos=1}"},{"Add":" Screen_top1 = {line=2, pos=1}"},{"Add":" Screen_bottom1 = {}"},{"Add":" -- initially the last two lines are displayed"},{"Add":" App.draw()"},{"Add":" local y = Margin_top"},{"Add":" App.screen.check(y, 'def', 'F - test_pageup/baseline/screen:1')"},{"Add":" y = y + Line_height"},{"Add":" App.screen.check(y, 'ghi', 'F - test_pageup/baseline/screen:2')"},{"Add":" -- after pageup the cursor goes to first line"},{"Add":" App.run_after_keychord('pageup')"},{"Add":" check_eq(Screen_top1.line, 1, 'F - test_pageup/screen_top')"},{"Add":" check_eq(Cursor1.line, 1, 'F - test_pageup/cursor')"},{"Add":" y = Margin_top"},{"Add":" App.screen.check(y, 'abc', 'F - test_pageup/screen:1')"},{"Add":" y = y + Line_height"},{"Add":" App.screen.check(y, 'def', 'F - test_pageup/screen:2')"},{"Add":"end"},{"Add":""},{"Add":"function test_pageup_scrolls_up_by_screen_line()"},{"Add":" io.write('\\ntest_pageup_scrolls_up_by_screen_line')"},{"Add":" -- display the first three lines with the cursor on the bottom line"},{"Add":" App.screen.init{width=25+30, height=60}"},{"Add":" Lines = load_array{'abc def', 'ghi', 'jkl', 'mno'}"},{"Add":" Line_width = App.screen.width"},{"Add":" Cursor1 = {line=2, pos=1}"},{"Add":" Screen_top1 = {line=2, pos=1}"},{"Add":" Screen_bottom1 = {}"},{"Add":" App.draw()"},{"Add":" local y = Margin_top"},{"Add":" App.screen.check(y, 'ghi', 'F - test_pageup_scrolls_up_by_screen_line/baseline/screen:1')"},{"Add":" y = y + Line_height"},{"Add":" App.screen.check(y, 'jkl', 'F - test_pageup_scrolls_up_by_screen_line/baseline/screen:2')"},{"Add":" y = y + Line_height"},{"Add":" App.screen.check(y, 'mno', 'F - test_pageup_scrolls_up_by_screen_line/baseline/screen:3') -- line wrapping includes trailing whitespace"},{"Add":" -- after hitting the page-up key the screen scrolls up to top"},{"Add":" App.run_after_keychord('pageup')"},{"Add":" check_eq(Screen_top1.line, 1, 'F - test_pageup_scrolls_up_by_screen_line/screen_top')"},{"Add":" check_eq(Cursor1.line, 1, 'F - test_pageup_scrolls_up_by_screen_line/cursor:line')"},{"Add":" check_eq(Cursor1.pos, 1, 'F - test_pageup_scrolls_up_by_screen_line/cursor:pos')"},{"Add":" y = Margin_top"},{"Add":" App.screen.check(y, 'abc ', 'F - test_pageup_scrolls_up_by_screen_line/screen:1')"},{"Add":" y = y + Line_height"},{"Add":" App.screen.check(y, 'def', 'F - test_pageup_scrolls_up_by_screen_line/screen:2')"},{"Add":" y = y + Line_height"},{"Add":" App.screen.check(y, 'ghi', 'F - test_pageup_scrolls_up_by_screen_line/screen:3')"},{"Add":"end"},{"Add":""},{"Add":"function test_pageup_scrolls_up_from_middle_screen_line()"},{"Add":" io.write('\\ntest_pageup_scrolls_up_from_middle_screen_line')"},{"Add":" -- display a few lines starting from the middle of a line (Cursor1.pos > 1)"},{"Add":" App.screen.init{width=25+30, height=60}"},{"Add":" Lines = load_array{'abc def', 'ghi jkl', 'mno'}"},{"Add":" Line_width = App.screen.width"},{"Add":" Cursor1 = {line=2, pos=5}"},{"Add":" Screen_top1 = {line=2, pos=5}"},{"Add":" Screen_bottom1 = {}"},{"Add":" App.draw()"},{"Add":" local y = Margin_top"},{"Add":" App.screen.check(y, 'jkl', 'F - test_pageup_scrolls_up_from_middle_screen_line/baseline/screen:2')"},{"Add":" y = y + Line_height"},{"Add":" App.screen.check(y, 'mno', 'F - test_pageup_scrolls_up_from_middle_screen_line/baseline/screen:3') -- line wrapping includes trailing whitespace"},{"Add":" -- after hitting the page-up key the screen scrolls up to top"},{"Add":" App.run_after_keychord('pageup')"},{"Add":" check_eq(Screen_top1.line, 1, 'F - test_pageup_scrolls_up_from_middle_screen_line/screen_top')"},{"Add":" check_eq(Cursor1.line, 1, 'F - test_pageup_scrolls_up_from_middle_screen_line/cursor:line')"},{"Add":" check_eq(Cursor1.pos, 1, 'F - test_pageup_scrolls_up_from_middle_screen_line/cursor:pos')"},{"Add":" y = Margin_top"},{"Add":" App.screen.check(y, 'abc ', 'F - test_pageup_scrolls_up_from_middle_screen_line/screen:1')"},{"Add":" y = y + Line_height"},{"Add":" App.screen.check(y, 'def', 'F - test_pageup_scrolls_up_from_middle_screen_line/screen:2')"},{"Add":" y = y + Line_height"},{"Add":" App.screen.check(y, 'ghi ', 'F - test_pageup_scrolls_up_from_middle_screen_line/screen:3')"},{"Add":"end"},{"Add":""},{"Add":"function test_enter_on_bottom_line_scrolls_down()"},{"Add":" io.write('\\ntest_enter_on_bottom_line_scrolls_down')"},{"Add":" -- display a few lines with cursor on bottom line"},{"Add":" App.screen.init{width=25+30, height=60}"},{"Add":" Lines = load_array{'abc', 'def', 'ghi', 'jkl'}"},{"Add":" Line_width = App.screen.width"},{"Add":" Cursor1 = {line=3, pos=2}"},{"Add":" Screen_top1 = {line=1, pos=1}"},{"Add":" Screen_bottom1 = {}"},{"Add":" App.draw()"},{"Add":" local y = Margin_top"},{"Add":" App.screen.check(y, 'abc', 'F - test_enter_on_bottom_line_scrolls_down/baseline/screen:1')"},{"Add":" y = y + Line_height"},{"Add":" App.screen.check(y, 'def', 'F - test_enter_on_bottom_line_scrolls_down/baseline/screen:2')"},{"Add":" y = y + Line_height"},{"Add":" App.screen.check(y, 'ghi', 'F - test_enter_on_bottom_line_scrolls_down/baseline/screen:3')"},{"Add":" -- after hitting the enter key the screen scrolls down"},{"Add":" App.run_after_keychord('return')"},{"Add":" check_eq(Screen_top1.line, 2, 'F - test_enter_on_bottom_line_scrolls_down/screen_top')"},{"Add":" check_eq(Cursor1.line, 4, 'F - test_enter_on_bottom_line_scrolls_down/cursor:line')"},{"Add":" check_eq(Cursor1.pos, 1, 'F - test_enter_on_bottom_line_scrolls_down/cursor:pos')"},{"Add":" y = Margin_top"},{"Add":" App.screen.check(y, 'def', 'F - test_enter_on_bottom_line_scrolls_down/screen:1')"},{"Add":" y = y + Line_height"},{"Add":" App.screen.check(y, 'g', 'F - test_enter_on_bottom_line_scrolls_down/screen:2')"},{"Add":" y = y + Line_height"},{"Add":" App.screen.check(y, 'hi', 'F - test_enter_on_bottom_line_scrolls_down/screen:3')"},{"Add":"end"},{"Add":""},{"Add":"function test_enter_on_final_line_avoids_scrolling_down_when_not_at_bottom()"},{"Add":" io.write('\\ntest_enter_on_final_line_avoids_scrolling_down_when_not_at_bottom')"},{"Add":" -- display just the bottom line on screen"},{"Add":" App.screen.init{width=25+30, height=60}"},{"Add":" Lines = load_array{'abc', 'def', 'ghi', 'jkl'}"},{"Add":" Line_width = App.screen.width"},{"Add":" Cursor1 = {line=4, pos=2}"},{"Add":" Screen_top1 = {line=4, pos=1}"},{"Add":" Screen_bottom1 = {}"},{"Add":" App.draw()"},{"Add":" local y = Margin_top"},{"Add":" App.screen.check(y, 'jkl', 'F - test_enter_on_final_line_avoids_scrolling_down_when_not_at_bottom/baseline/screen:1')"},{"Add":" -- after hitting the enter key the screen does not scroll down"},{"Add":" App.run_after_keychord('return')"},{"Add":" check_eq(Screen_top1.line, 4, 'F - test_enter_on_final_line_avoids_scrolling_down_when_not_at_bottom/screen_top')"},{"Add":" check_eq(Cursor1.line, 5, 'F - test_enter_on_final_line_avoids_scrolling_down_when_not_at_bottom/cursor:line')"},{"Add":" check_eq(Cursor1.pos, 1, 'F - test_enter_on_final_line_avoids_scrolling_down_when_not_at_bottom/cursor:pos')"},{"Add":" y = Margin_top"},{"Add":" App.screen.check(y, 'j', 'F - test_enter_on_final_line_avoids_scrolling_down_when_not_at_bottom/screen:1')"},{"Add":" y = y + Line_height"},{"Add":" App.screen.check(y, 'kl', 'F - test_enter_on_final_line_avoids_scrolling_down_when_not_at_bottom/screen:2')"},{"Add":"end"},{"Add":""},{"Add":"function test_position_cursor_on_recently_edited_wrapping_line()"},{"Add":" -- draw a line wrapping over 2 screen lines"},{"Add":" io.write('\\ntest_position_cursor_on_recently_edited_wrapping_line')"},{"Add":" App.screen.init{width=120, height=200}"},{"Add":" Lines = load_array{'abc def ghi jkl mno pqr ', 'xyz'}"},{"Add":" Line_width = 100"},{"Add":" Cursor1 = {line=1, pos=25}"},{"Add":" Screen_top1 = {line=1, pos=1}"},{"Add":" Screen_bottom1 = {}"},{"Add":" App.draw()"},{"Add":" local y = Margin_top"},{"Add":" -- I don't understand why 120px fits so much on a fake screen, but whatever.."},{"Add":" App.screen.check(y, 'abc def ghi ', 'F - test_position_cursor_on_recently_edited_wrapping_line/baseline1/screen:1')"},{"Add":" y = y + Line_height"},{"Add":" App.screen.check(y, 'jkl mno pqr ', 'F - test_position_cursor_on_recently_edited_wrapping_line/baseline1/screen:2')"},{"Add":" y = y + Line_height"},{"Add":" App.screen.check(y, 'xyz', 'F - test_position_cursor_on_recently_edited_wrapping_line/baseline1/screen:3')"},{"Add":" -- add to the line until it's wrapping over 3 screen lines"},{"Add":" App.run_after_textinput('s')"},{"Add":" App.run_after_textinput('t')"},{"Add":" App.run_after_textinput('u')"},{"Add":" check_eq(Cursor1.pos, 28, 'F - test_move_cursor_using_mouse/cursor:pos')"},{"Add":" y = Margin_top"},{"Add":" App.screen.check(y, 'abc def ghi ', 'F - test_position_cursor_on_recently_edited_wrapping_line/baseline2/screen:1')"},{"Add":" y = y + Line_height"},{"Add":" App.screen.check(y, 'jkl mno pqr ', 'F - test_position_cursor_on_recently_edited_wrapping_line/baseline2/screen:2')"},{"Add":" y = y + Line_height"},{"Add":" App.screen.check(y, 'stu', 'F - test_position_cursor_on_recently_edited_wrapping_line/baseline2/screen:3')"},{"Add":" -- try to move the cursor earlier in the third screen line by clicking the mouse"},{"Add":" local screen_left_margin = 25 -- pixels"},{"Add":" App.run_after_mouserelease(screen_left_margin+8,Margin_top+Line_height*2+5, '1')"},{"Add":" -- cursor should move"},{"Add":" check_eq(Cursor1.line, 1, 'F - test_move_cursor_using_mouse/cursor:line')"},{"Add":" check_eq(Cursor1.pos, 26, 'F - test_move_cursor_using_mouse/cursor:pos')"},{"Add":"end"},{"Add":""},{"Add":"function test_backspace_can_scroll_up()"},{"Add":" io.write('\\ntest_backspace_can_scroll_up')"},{"Add":" -- display the lines 2/3/4 with the cursor on line 2"},{"Add":" App.screen.init{width=120, height=60}"},{"Add":" Lines = load_array{'abc', 'def', 'ghi', 'jkl'}"},{"Add":" Line_width = 120"},{"Add":" Cursor1 = {line=2, pos=1}"},{"Add":" Screen_top1 = {line=2, pos=1}"},{"Add":" Screen_bottom1 = {}"},{"Add":" App.draw()"},{"Add":" local y = Margin_top"},{"Add":" App.screen.check(y, 'def', 'F - test_backspace_can_scroll_up/baseline/screen:1')"},{"Add":" y = y + Line_height"},{"Add":" App.screen.check(y, 'ghi', 'F - test_backspace_can_scroll_up/baseline/screen:2')"},{"Add":" y = y + Line_height"},{"Add":" App.screen.check(y, 'jkl', 'F - test_backspace_can_scroll_up/baseline/screen:3')"},{"Add":" -- after hitting backspace the screen scrolls up by one line"},{"Add":" App.run_after_keychord('backspace')"},{"Add":" check_eq(Screen_top1.line, 1, 'F - test_backspace_can_scroll_up/screen_top')"},{"Add":" check_eq(Cursor1.line, 1, 'F - test_backspace_can_scroll_up/cursor')"},{"Add":" y = Margin_top"},{"Add":" App.screen.check(y, 'abcdef', 'F - test_backspace_can_scroll_up/screen:1')"},{"Add":" y = y + Line_height"},{"Add":" App.screen.check(y, 'ghi', 'F - test_backspace_can_scroll_up/screen:2')"},{"Add":" y = y + Line_height"},{"Add":" App.screen.check(y, 'jkl', 'F - test_backspace_can_scroll_up/screen:3')"},{"Add":"end"},{"Add":""},{"Add":"function test_backspace_can_scroll_up_screen_line()"},{"Add":" io.write('\\ntest_backspace_can_scroll_up_screen_line')"},{"Add":" -- display lines starting from second screen line of a line"},{"Add":" App.screen.init{width=25+30, height=60}"},{"Add":" Lines = load_array{'abc', 'def', 'ghi jkl', 'mno'}"},{"Add":" Line_width = App.screen.width"},{"Add":" Cursor1 = {line=3, pos=5}"},{"Add":" Screen_top1 = {line=3, pos=5}"},{"Add":" Screen_bottom1 = {}"},{"Add":" App.draw()"},{"Add":" local y = Margin_top"},{"Add":" App.screen.check(y, 'jkl', 'F - test_backspace_can_scroll_up_screen_line/baseline/screen:1')"},{"Add":" y = y + Line_height"},{"Add":" App.screen.check(y, 'mno', 'F - test_backspace_can_scroll_up_screen_line/baseline/screen:2')"},{"Add":" -- after hitting backspace the screen scrolls up by one screen line"},{"Add":" App.run_after_keychord('backspace')"},{"Add":" y = Margin_top"},{"Add":" App.screen.check(y, 'ghijk', 'F - test_backspace_can_scroll_up_screen_line/screen:1')"},{"Add":" y = y + Line_height"},{"Add":" App.screen.check(y, 'l', 'F - test_backspace_can_scroll_up_screen_line/screen:2')"},{"Add":" y = y + Line_height"},{"Add":" App.screen.check(y, 'mno', 'F - test_backspace_can_scroll_up_screen_line/screen:3')"},{"Add":" check_eq(Screen_top1.line, 3, 'F - test_backspace_can_scroll_up_screen_line/screen_top')"},{"Add":" check_eq(Screen_top1.pos, 1, 'F - test_backspace_can_scroll_up_screen_line/screen_top')"},{"Add":" check_eq(Cursor1.line, 3, 'F - test_backspace_can_scroll_up_screen_line/cursor:line')"},{"Add":" check_eq(Cursor1.pos, 4, 'F - test_backspace_can_scroll_up_screen_line/cursor:pos')"},{"Add":"end"},{"Add":""},{"Add":"-- some tests for operating over selections created using Shift- chords"},{"Add":"-- we're just testing delete_selection, and it works the same for all keys"},{"Add":""},{"Add":"function test_backspace_over_selection()"},{"Add":" io.write('\\ntest_backspace_over_selection')"},{"Add":" -- select just one character within a line with cursor before selection"},{"Add":" App.screen.init{width=25+30, height=60}"},{"Add":" Lines = load_array{'abc', 'def', 'ghi', 'jkl', 'mno'}"},{"Add":" Line_width = App.screen.width"},{"Add":" Cursor1 = {line=1, pos=1}"},{"Add":" Selection1 = {line=1, pos=2}"},{"Add":" -- backspace deletes the selected character, even though it's after the cursor"},{"Add":" App.run_after_keychord('backspace')"},{"Add":" check_eq(Lines[1].data, 'bc', \"F - test_backspace_over_selection/data\")"},{"Add":" -- cursor (remains) at start of selection"},{"Add":" check_eq(Cursor1.line, 1, \"F - test_backspace_over_selection/cursor:line\")"},{"Add":" check_eq(Cursor1.pos, 1, \"F - test_backspace_over_selection/cursor:pos\")"},{"Add":" -- selection is cleared"},{"Add":" check_nil(Selection1.line, \"F - test_backspace_over_selection/selection\")"},{"Add":"end"},{"Add":""},{"Add":"function test_backspace_over_selection_reverse()"},{"Add":" io.write('\\ntest_backspace_over_selection_reverse')"},{"Add":" -- select just one character within a line with cursor after selection"},{"Add":" App.screen.init{width=25+30, height=60}"},{"Add":" Lines = load_array{'abc', 'def', 'ghi', 'jkl', 'mno'}"},{"Add":" Line_width = App.screen.width"},{"Add":" Cursor1 = {line=1, pos=2}"},{"Add":" Selection1 = {line=1, pos=1}"},{"Add":" -- backspace deletes the selected character"},{"Add":" App.run_after_keychord('backspace')"},{"Add":" check_eq(Lines[1].data, 'bc', \"F - test_backspace_over_selection_reverse/data\")"},{"Add":" -- cursor moves to start of selection"},{"Add":" check_eq(Cursor1.line, 1, \"F - test_backspace_over_selection_reverse/cursor:line\")"},{"Add":" check_eq(Cursor1.pos, 1, \"F - test_backspace_over_selection_reverse/cursor:pos\")"},{"Add":" -- selection is cleared"},{"Add":" check_nil(Selection1.line, \"F - test_backspace_over_selection_reverse/selection\")"},{"Add":"end"},{"Add":""},{"Add":"function test_backspace_over_multiple_lines()"},{"Add":" io.write('\\ntest_backspace_over_multiple_lines')"},{"Add":" -- select just one character within a line with cursor after selection"},{"Add":" App.screen.init{width=25+30, height=60}"},{"Add":" Lines = load_array{'abc', 'def', 'ghi', 'jkl', 'mno'}"},{"Add":" Line_width = App.screen.width"},{"Add":" Cursor1 = {line=1, pos=2}"},{"Add":" Selection1 = {line=4, pos=2}"},{"Add":" -- backspace deletes the region and joins the remaining portions of lines on either side"},{"Add":" App.run_after_keychord('backspace')"},{"Add":" check_eq(Lines[1].data, 'akl', \"F - test_backspace_over_multiple_lines/data:1\")"},{"Add":" check_eq(Lines[2].data, 'mno', \"F - test_backspace_over_multiple_lines/data:2\")"},{"Add":" -- cursor remains at start of selection"},{"Add":" check_eq(Cursor1.line, 1, \"F - test_backspace_over_multiple_lines/cursor:line\")"},{"Add":" check_eq(Cursor1.pos, 2, \"F - test_backspace_over_multiple_lines/cursor:pos\")"},{"Add":" -- selection is cleared"},{"Add":" check_nil(Selection1.line, \"F - test_backspace_over_multiple_lines/selection\")"},{"Add":"end"},{"Add":""},{"Add":"function test_backspace_to_end_of_line()"},{"Add":" io.write('\\ntest_backspace_to_end_of_line')"},{"Add":" -- select region from cursor to end of line"},{"Add":" App.screen.init{width=25+30, height=60}"},{"Add":" Lines = load_array{'abc', 'def', 'ghi', 'jkl', 'mno'}"},{"Add":" Line_width = App.screen.width"},{"Add":" Cursor1 = {line=1, pos=2}"},{"Add":" Selection1 = {line=1, pos=4}"},{"Add":" -- backspace deletes rest of line without joining to any other line"},{"Add":" App.run_after_keychord('backspace')"},{"Add":" check_eq(Lines[1].data, 'a', \"F - test_backspace_to_start_of_line/data:1\")"},{"Add":" check_eq(Lines[2].data, 'def', \"F - test_backspace_to_start_of_line/data:2\")"},{"Add":" -- cursor remains at start of selection"},{"Add":" check_eq(Cursor1.line, 1, \"F - test_backspace_to_start_of_line/cursor:line\")"},{"Add":" check_eq(Cursor1.pos, 2, \"F - test_backspace_to_start_of_line/cursor:pos\")"},{"Add":" -- selection is cleared"},{"Add":" check_nil(Selection1.line, \"F - test_backspace_to_start_of_line/selection\")"},{"Add":"end"},{"Add":""},{"Add":"function test_backspace_to_start_of_line()"},{"Add":" io.write('\\ntest_backspace_to_start_of_line')"},{"Add":" -- select region from cursor to start of line"},{"Add":" App.screen.init{width=25+30, height=60}"},{"Add":" Lines = load_array{'abc', 'def', 'ghi', 'jkl', 'mno'}"},{"Add":" Line_width = App.screen.width"},{"Add":" Cursor1 = {line=2, pos=1}"},{"Add":" Selection1 = {line=2, pos=3}"},{"Add":" -- backspace deletes beginning of line without joining to any other line"},{"Add":" App.run_after_keychord('backspace')"},{"Add":" check_eq(Lines[1].data, 'abc', \"F - test_backspace_to_start_of_line/data:1\")"},{"Add":" check_eq(Lines[2].data, 'f', \"F - test_backspace_to_start_of_line/data:2\")"},{"Add":" -- cursor remains at start of selection"},{"Add":" check_eq(Cursor1.line, 2, \"F - test_backspace_to_start_of_line/cursor:line\")"},{"Add":" check_eq(Cursor1.pos, 1, \"F - test_backspace_to_start_of_line/cursor:pos\")"},{"Add":" -- selection is cleared"},{"Add":" check_nil(Selection1.line, \"F - test_backspace_to_start_of_line/selection\")"},{"Add":"end"},{"Add":""},{"Add":"function test_undo_insert_text()"},{"Add":" io.write('\\ntest_undo_insert_text')"},{"Add":" App.screen.init{width=120, height=60}"},{"Add":" Lines = load_array{'abc', 'def', 'xyz'}"},{"Add":" Line_width = App.screen.width"},{"Add":" Cursor1 = {line=2, pos=4}"},{"Add":" Screen_top1 = {line=1, pos=1}"},{"Add":" Screen_bottom1 = {}"},{"Add":" -- insert a character"},{"Add":" App.run_after_textinput('g')"},{"Add":" check_eq(Cursor1.line, 2, 'F - test_undo_insert_text/baseline/cursor:line')"},{"Add":" check_eq(Cursor1.pos, 5, 'F - test_undo_insert_text/baseline/cursor:pos')"},{"Add":" check_nil(Selection1.line, 'F - test_undo_insert_text/baseline/selection:line')"},{"Add":" check_nil(Selection1.pos, 'F - test_undo_insert_text/baseline/selection:pos')"},{"Add":" local y = Margin_top"},{"Add":" App.screen.check(y, 'abc', 'F - test_undo_insert_text/baseline/screen:1')"},{"Add":" y = y + Line_height"},{"Add":" App.screen.check(y, 'defg', 'F - test_undo_insert_text/baseline/screen:2')"},{"Add":" y = y + Line_height"},{"Add":" App.screen.check(y, 'xyz', 'F - test_undo_insert_text/baseline/screen:3')"},{"Add":" -- undo"},{"Add":" App.run_after_keychord('C-z')"},{"Add":" check_eq(Cursor1.line, 2, 'F - test_undo_insert_text/cursor:line')"},{"Add":" check_eq(Cursor1.pos, 4, 'F - test_undo_insert_text/cursor:pos')"},{"Add":" check_nil(Selection1.line, 'F - test_undo_insert_text/selection:line')"},{"Add":" check_nil(Selection1.pos, 'F - test_undo_insert_text/selection:pos')"},{"Add":" y = Margin_top"},{"Add":" App.screen.check(y, 'abc', 'F - test_undo_insert_text/screen:1')"},{"Add":" y = y + Line_height"},{"Add":" App.screen.check(y, 'def', 'F - test_undo_insert_text/screen:2')"},{"Add":" y = y + Line_height"},{"Add":" App.screen.check(y, 'xyz', 'F - test_undo_insert_text/screen:3')"},{"Add":"end"},{"Add":""},{"Add":"function test_undo_delete_text()"},{"Add":" io.write('\\ntest_undo_delete_text')"},{"Add":" App.screen.init{width=120, height=60}"},{"Add":" Lines = load_array{'abc', 'defg', 'xyz'}"},{"Add":" Line_width = App.screen.width"},{"Add":" Cursor1 = {line=2, pos=5}"},{"Add":" Screen_top1 = {line=1, pos=1}"},{"Add":" Screen_bottom1 = {}"},{"Add":" -- delete a character"},{"Add":" App.run_after_keychord('backspace')"},{"Add":" check_eq(Cursor1.line, 2, 'F - test_undo_delete_text/baseline/cursor:line')"},{"Add":" check_eq(Cursor1.pos, 4, 'F - test_undo_delete_text/baseline/cursor:pos')"},{"Add":" check_nil(Selection1.line, 'F - test_undo_delete_text/baseline/selection:line')"},{"Add":" check_nil(Selection1.pos, 'F - test_undo_delete_text/baseline/selection:pos')"},{"Add":" local y = Margin_top"},{"Add":" App.screen.check(y, 'abc', 'F - test_undo_delete_text/baseline/screen:1')"},{"Add":" y = y + Line_height"},{"Add":" App.screen.check(y, 'def', 'F - test_undo_delete_text/baseline/screen:2')"},{"Add":" y = y + Line_height"},{"Add":" App.screen.check(y, 'xyz', 'F - test_undo_delete_text/baseline/screen:3')"},{"Add":" -- undo"},{"Add":"--? -- after undo, the backspaced key is selected"},{"Add":" App.run_after_keychord('C-z')"},{"Add":" check_eq(Cursor1.line, 2, 'F - test_undo_delete_text/cursor:line')"},{"Add":" check_eq(Cursor1.pos, 5, 'F - test_undo_delete_text/cursor:pos')"},{"Add":" check_nil(Selection1.line, 'F - test_undo_delete_text/selection:line')"},{"Add":" check_nil(Selection1.pos, 'F - test_undo_delete_text/selection:pos')"},{"Add":"--? check_eq(Selection1.line, 2, 'F - test_undo_delete_text/selection:line')"},{"Add":"--? check_eq(Selection1.pos, 4, 'F - test_undo_delete_text/selection:pos')"},{"Add":" y = Margin_top"},{"Add":" App.screen.check(y, 'abc', 'F - test_undo_delete_text/screen:1')"},{"Add":" y = y + Line_height"},{"Add":" App.screen.check(y, 'defg', 'F - test_undo_delete_text/screen:2')"},{"Add":" y = y + Line_height"},{"Add":" App.screen.check(y, 'xyz', 'F - test_undo_delete_text/screen:3')"},{"Add":"end"}]}},{"Replacement":{"inode":{"change":8,"pos":1},"path":"text.lua","line":1,"ins":{"up_context":[{"change":8,"pos":1}],"down_context":[{"change":8,"pos":33}],"flag":"BLOCK","start":43841,"end":43920,"inode":{"change":8,"pos":1}},"del":{"edges":[{"previous":"BLOCK","flag":"BLOCK | DELETED","from":{"change":8,"pos":1},"to":{"change":8,"start":2,"end":33},"introduced_by":8}],"inode":{"change":8,"pos":1}},"ins_contents":[{"Add":"-- text editor, particularly text drawing, horizontal wrap, vertical scrolling"}],"del_contents":[{"Del":"-- primitives for editing 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App.screen.width-1, h+8)\n love.graphics.setColor(0.6,0.6,0.6)\n love.graphics.line(0, y-10, App.screen.width-1, y-10)\n love.graphics.setColor(1,1,1)\n love.graphics.rectangle('fill', 20, y-6, App.screen.width-40, h+2, 2,2)\n love.graphics.setColor(0.6,0.6,0.6)\n love.graphics.rectangle('line', 20, y-6, App.screen.width-40, h+2, 2,2)\n love.graphics.setColor(0,0,0)\n"},{"Del":" App.screen.print(Search_term, 25,y-5)\n"},{"Del":" love.graphics.setColor(1,0,0)\n if Search_text == nil then\n Search_text = App.newText(love.graphics.getFont(), Search_term)\n end\n"},{"Del":" love.graphics.circle('fill', 25+App.width(Search_text),y-5+h, 2)\n"},{"Del":" love.graphics.setColor(0,0,0)\nend\n\nfunction Text.search_next()\n -- search current line\n local pos = Lines[Cursor1.line].data:find(Search_term, Cursor1.pos)\n if pos then\n Cursor1.pos = pos\n end\n if pos == nil then\n for i=Cursor1.line+1,#Lines do\n pos = Lines[i].data:find(Search_term)\n if pos then\n Cursor1.line = i\n Cursor1.pos = pos\n break\n end\n end\n end\n if pos == nil then\n -- wrap around\n for i=1,Cursor1.line-1 do\n pos = Lines[i].data:find(Search_term)\n"},{"Del":" if pos then\n Cursor1.line = i\n Cursor1.pos = pos\n break\n end\n end\n end\n if pos == nil then\n"},{"Del":" Cursor1.line = Search_backup.cursor.line\n Cursor1.pos = Search_backup.cursor.pos\n Screen_top1.line = Search_backup.screen_top.line\n Screen_top1.pos = Search_backup.screen_top.pos\n"},{"Del":" end\n if Text.lt1(Cursor1, Screen_top1) or Text.lt1(Screen_bottom1, Cursor1) then\n Screen_top1.line = Cursor1.line\n local _, pos = Text.pos_at_start_of_cursor_screen_line()\n Screen_top1.pos = pos\n end\nend\n\nfunction Text.search_previous()\n -- search current line\n local pos = rfind(Lines[Cursor1.line].data, Search_term, Cursor1.pos)\n if pos then\n Cursor1.pos = pos\n end\n if pos == nil then\n for i=Cursor1.line-1,1,-1 do\n pos = rfind(Lines[i].data, Search_term)\n"},{"Del":" if pos then\n Cursor1.line = i\n Cursor1.pos = pos\n break\n end\n end\n end\n if pos == nil then\n"},{"Del":" -- wrap around\n for i=#Lines,Cursor1.line+1,-1 do\n pos = rfind(Lines[i].data, Search_term)\n if pos then\n Cursor1.line = i\n Cursor1.pos = pos\n break\n end\n end\n end\n if pos == nil then\n"},{"Del":" Cursor1.line = Search_backup.cursor.line\n Cursor1.pos = Search_backup.cursor.pos\n Screen_top1.line = Search_backup.screen_top.line\n Screen_top1.pos = Search_backup.screen_top.pos\n"},{"Del":" end\n if Text.lt1(Cursor1, Screen_top1) or Text.lt1(Screen_bottom1, Cursor1) then\n Screen_top1.line = Cursor1.line\n local _, pos = Text.pos_at_start_of_cursor_screen_line()\n Screen_top1.pos = pos\n end\nend\n"},{"Del":"\n"},{"Del":"function rfind(s, pat, i)\n local rs = s:reverse()\n local rpat = pat:reverse()\n if i == nil then i = #s end\n local ri = #s - i + 1\n local rendpos = rs:find(rpat, ri)\n if rendpos == nil then return nil end\n local endpos = #s - rendpos + 1\n assert (endpos >= #pat)\n return endpos-#pat+1\nend\n\n"},{"Del":"-- Return any intersection of the region from Selection1 to Cursor1 (or\n-- current mouse, if mouse is pressed; or recent mouse if mouse is pressed and\n-- currently over a drawing) with the region between {line=line_index, pos=apos}\n-- and {line=line_index, pos=bpos}.\n"},{"Del":"-- apos must be less than bpos. However Selection1 and Cursor1 can be in any order.\n-- Result: positions spos,epos between apos,bpos.\nfunction Text.clip_selection(line_index, apos, bpos)\n if Selection1.line == nil then return nil,nil end\n -- min,max = sorted(Selection1,Cursor1)\n local minl,minp = Selection1.line,Selection1.pos\n"},{"Del":" local maxl,maxp\n if love.mouse.isDown('1') then\n maxl,maxp = Text.mouse_pos()\n else\n maxl,maxp = Cursor1.line,Cursor1.pos\n end\n"},{"Del":" if minl > maxl then\n minl,maxl = maxl,minl\n minp,maxp = maxp,minp\n elseif minl == maxl then\n if minp > maxp then\n minp,maxp = maxp,minp\n end\n end\n -- check if intervals are disjoint\n if line_index < minl then return nil,nil end\n if line_index > maxl then return nil,nil end\n if line_index == minl and bpos <= minp then return nil,nil end\n if line_index == maxl and apos >= maxp then return nil,nil end\n -- compare bounds more carefully (start inclusive, end exclusive)\n local a_ge = Text.le1({line=minl, pos=minp}, {line=line_index, pos=apos})\n local b_lt = Text.lt1({line=line_index, pos=bpos}, {line=maxl, pos=maxp})\n--? print(minl,line_index,maxl, '--', minp,apos,bpos,maxp, '--', a_ge,b_lt)\n if a_ge and b_lt then\n -- fully contained\n return apos,bpos\n elseif a_ge then\n assert(maxl == line_index)\n return apos,maxp\n elseif b_lt then\n assert(minl == line_index)\n return minp,bpos\n else\n assert(minl == maxl and minl == line_index)\n return minp,maxp\n"},{"Del":" end\nend\n\n-- inefficient for some reason, so don't do it on every frame\nfunction Text.mouse_pos()\n local time = love.timer.getTime()\n if Recent_mouse.time and Recent_mouse.time > time-0.1 then\n return Recent_mouse.line, Recent_mouse.pos\n end\n Recent_mouse.time = time\n local line,pos = Text.to_pos(love.mouse.getX(), love.mouse.getY())\n if line then\n Recent_mouse.line = line\n Recent_mouse.pos = pos\n"},{"Del":" end\n"},{"Del":" return Recent_mouse.line, Recent_mouse.pos\n"},{"Del":"end\n\n"},{"Del":"function Text.to_pos(x,y)\n for line_index,line in ipairs(Lines) do\n if line.mode == 'text' then\n if Text.in_line(line, x,y) then\n return line_index, Text.to_pos_on_line(line, x,y)\n end\n end\n end\nend\n\n"},{"Del":"function Text.delete_selection()\n"},{"Del":" local minl,maxl = minmax(Selection1.line, Cursor1.line)\n local before = snapshot(minl, maxl)\n Text.delete_selection_without_undo()\n record_undo_event({before=before, after=snapshot(Cursor1.line)})\nend\n\nfunction Text.delete_selection_without_undo()\n"},{"Del":" if Selection1.line == nil then return end\n -- min,max = sorted(Selection1,Cursor1)\n local minl,minp = Selection1.line,Selection1.pos\n local maxl,maxp = Cursor1.line,Cursor1.pos\n if minl > maxl then\n minl,maxl = maxl,minl\n minp,maxp = maxp,minp\n elseif minl == maxl then\n if minp > maxp then\n minp,maxp = maxp,minp\n end\n end\n -- update Cursor1 and Selection1\n Cursor1.line = minl\n Cursor1.pos = minp\n Selection1 = {}\n -- delete everything between min (inclusive) and max (exclusive)\n Lines[minl].fragments = nil\n Lines[minl].screen_line_starting_pos = nil\n local min_offset = utf8.offset(Lines[minl].data, minp)\n local max_offset = utf8.offset(Lines[maxl].data, maxp)\n if minl == maxl then\n--? print('minl == maxl')\n Lines[minl].data = Lines[minl].data:sub(1, min_offset-1)..Lines[minl].data:sub(max_offset)\n return\n end\n assert(minl < maxl)\n local rhs = Lines[maxl].data:sub(max_offset)\n for i=maxl,minl+1,-1 do\n table.remove(Lines, i)\n end\n Lines[minl].data = Lines[minl].data:sub(1, min_offset-1)..rhs\nend\n"},{"Del":"\n"},{"Del":"function Text.selection()\n if Selection1.line == nil then return end\n -- min,max = sorted(Selection1,Cursor1)\n local minl,minp = Selection1.line,Selection1.pos\n local maxl,maxp = Cursor1.line,Cursor1.pos\n if minl > maxl then\n minl,maxl = maxl,minl\n minp,maxp = maxp,minp\n elseif minl == maxl then\n if minp > maxp then\n minp,maxp = maxp,minp\n end\n end\n local min_offset = utf8.offset(Lines[minl].data, minp)\n local max_offset = utf8.offset(Lines[maxl].data, maxp)\n if minl == maxl then\n return Lines[minl].data:sub(min_offset, max_offset-1)\n end\n assert(minl < maxl)\n local result = Lines[minl].data:sub(min_offset)..'\\n'\n for i=minl+1,maxl-1 do\n if Lines[i].mode == 'text' then\n result = result..Lines[i].data..'\\n'\n end\n end\n result = result..Lines[maxl].data:sub(1, max_offset-1)\n return result\nend\n"}]}},{"Edit":{"inode":{"change":8,"pos":1},"path":"text.lua","line":110,"atom":{"EdgeMap":{"edges":[{"previous":"BLOCK","flag":"BLOCK | DELETED","from":{"change":8,"pos":851},"to":{"change":8,"start":851,"end":962},"introduced_by":8}],"inode":{"change":8,"pos":1}}},"contents":[{"Del":"function Text.cut_selection()\n local result = Text.selection()\n Text.delete_selection()\n return result\nend\n\n"}]}},{"Edit":{"inode":{"change":8,"pos":1},"path":"text.lua","line":118,"atom":{"EdgeMap":{"edges":[{"previous":"BLOCK","flag":"BLOCK | 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DELETED","from":{"change":8,"pos":6075},"to":{"change":8,"start":2850,"end":2872},"introduced_by":8},{"previous":"","flag":"DELETED","from":{"change":8,"pos":2872},"to":{"change":8,"start":6097,"end":6165},"introduced_by":8},{"previous":"BLOCK","flag":"BLOCK | DELETED","from":{"change":8,"pos":6097},"to":{"change":8,"start":6097,"end":6165},"introduced_by":8},{"previous":"BLOCK","flag":"BLOCK | DELETED","from":{"change":8,"pos":6165},"to":{"change":8,"start":2873,"end":2895},"introduced_by":8},{"previous":"","flag":"DELETED","from":{"change":8,"pos":2895},"to":{"change":8,"start":6187,"end":6254},"introduced_by":8},{"previous":"BLOCK","flag":"BLOCK | DELETED","from":{"change":8,"pos":6187},"to":{"change":8,"start":6187,"end":6254},"introduced_by":8},{"previous":"","flag":"DELETED","from":{"change":8,"pos":614},"to":{"change":8,"start":6254,"end":6259},"introduced_by":8},{"previous":"BLOCK","flag":"BLOCK | DELETED","from":{"change":8,"pos":6254},"to":{"change":8,"start":6254,"end":6259},"introduced_by":8}],"inode":{"change":8,"pos":1}}},"contents":[{"Del":"function test_draw_text()\n"},{"Del":" io.write('\\ntest_draw_text')\n"},{"Del":" App.screen.init{width=120, height=60}\n Lines = load_array{'abc', 'def', 'ghi'}\n"},{"Del":" Line_width = App.screen.width\n"},{"Del":" Cursor1 = {line=1, pos=1}\n Screen_top1 = {line=1, pos=1}\n Screen_bottom1 = {}\n"},{"Del":" App.draw()\n"},{"Del":" local y = Margin_top\n"},{"Del":" App.screen.check(y, 'abc', 'F - test_draw_text/screen:1')\n"},{"Del":" y = y + Line_height\n"},{"Del":" App.screen.check(y, 'def', 'F - test_draw_text/screen:2')\n"},{"Del":" y = y + Line_height\n"},{"Del":" App.screen.check(y, 'ghi', 'F - test_draw_text/screen:3')\nend\n\n"},{"Del":"function test_draw_wrapping_text()\n io.write('\\ntest_draw_wrapping_text')\n App.screen.init{width=50, height=60}\n Lines = load_array{'abc', 'defgh', 'xyz'}\n Line_width = App.screen.width\n Cursor1 = {line=1, pos=1}\n Screen_top1 = {line=1, pos=1}\n Screen_bottom1 = {}\n"},{"Del":" App.draw()\n"},{"Del":" local y = Margin_top\n"},{"Del":" App.screen.check(y, 'abc', 'F - test_draw_wrapping_text/screen:1')\n"},{"Del":" y = y + Line_height\n"},{"Del":" App.screen.check(y, 'def', 'F - test_draw_wrapping_text/screen:2')\n"},{"Del":" y = y + Line_height\n"},{"Del":" App.screen.check(y, 'gh', 'F - test_draw_wrapping_text/screen:3')\nend\n\n"},{"Del":"function test_draw_word_wrapping_text()\n io.write('\\ntest_draw_word_wrapping_text')\n App.screen.init{width=60, height=60}\n Lines = load_array{'abc def ghi', 'jkl'}\n Line_width = App.screen.width\n Cursor1 = {line=1, pos=1}\n Screen_top1 = {line=1, pos=1}\n Screen_bottom1 = {}\n"},{"Del":" App.draw()\n"},{"Del":" local y = Margin_top\n"},{"Del":" App.screen.check(y, 'abc ', 'F - test_draw_word_wrapping_text/screen:1')\n"},{"Del":" y = y + Line_height\n"},{"Del":" App.screen.check(y, 'def ', 'F - test_draw_word_wrapping_text/screen:2')\n"},{"Del":" y = y + Line_height\n"},{"Del":" App.screen.check(y, 'ghi', 'F - test_draw_word_wrapping_text/screen:3')\nend\n\nfunction test_draw_text_wrapping_within_word()\n -- arrange a screen line that needs to be split within a word\n io.write('\\ntest_draw_text_wrapping_within_word')\n App.screen.init{width=60, height=60}\n Lines = load_array{'abcd e fghijk', 'xyz'}\n Line_width = App.screen.width\n Cursor1 = {line=1, pos=1}\n Screen_top1 = {line=1, pos=1}\n Screen_bottom1 = {}\n"},{"Del":" App.draw()\n"},{"Del":" local y = Margin_top\n"},{"Del":" App.screen.check(y, 'abcd ', 'F - test_draw_text_wrapping_within_word/screen:1')\n"},{"Del":" y = y + Line_height\n"},{"Del":" App.screen.check(y, 'e fghi', 'F - test_draw_text_wrapping_within_word/screen:2')\n"},{"Del":" y = y + Line_height\n"},{"Del":" App.screen.check(y, 'jk', 'F - test_draw_text_wrapping_within_word/screen:3')\nend\n\n"},{"Del":"function test_edit_wrapping_text()\n io.write('\\ntest_edit_wrapping_text')\n App.screen.init{width=50, height=60}\n Lines = load_array{'abc', 'def', 'xyz'}\n Line_width = App.screen.width\n Cursor1 = {line=2, pos=4}\n Screen_top1 = {line=1, pos=1}\n Screen_bottom1 = {}\n"},{"Del":" App.run_after_textinput('g')\n App.run_after_textinput('h')\n App.run_after_textinput('i')\n App.run_after_textinput('j')\n App.run_after_textinput('k')\n App.run_after_textinput('l')\n"},{"Del":" local y = Margin_top\n"},{"Del":" App.screen.check(y, 'abc', 'F - test_edit_wrapping_text/screen:1')\n"},{"Del":" y = y + Line_height\n"},{"Del":" App.screen.check(y, 'def', 'F - test_edit_wrapping_text/screen:2')\n"},{"Del":" y = y + Line_height\n"},{"Del":" App.screen.check(y, 'ghij', 'F - test_edit_wrapping_text/screen:3')\n"},{"Del":"end\n\nfunction test_insert_newline()\n io.write('\\ntest_insert_newline')\n -- display a few lines with cursor on bottom line\n App.screen.init{width=25+30, height=60}\n Lines = load_array{'abc', 'def', 'ghi', 'jkl'}\n Line_width = App.screen.width\n Cursor1 = {line=1, pos=2}\n Screen_top1 = {line=1, pos=1}\n Screen_bottom1 = {}\n"},{"Del":" App.draw()\n"},{"Del":" local y = Margin_top\n"},{"Del":" App.screen.check(y, 'abc', 'F - test_insert_newline/baseline/screen:1')\n"},{"Del":" y = y + Line_height\n"},{"Del":" App.screen.check(y, 'def', 'F - test_insert_newline/baseline/screen:2')\n"},{"Del":" y = y + Line_height\n"},{"Del":" App.screen.check(y, 'ghi', 'F - test_insert_newline/baseline/screen:3')\n -- after hitting the enter key the screen scrolls down\n App.run_after_keychord('return')\n check_eq(Screen_top1.line, 1, 'F - test_insert_newline/screen_top')\n check_eq(Cursor1.line, 2, 'F - test_insert_newline/cursor:line')\n check_eq(Cursor1.pos, 1, 'F - test_insert_newline/cursor:pos')\n"},{"Del":" y = Margin_top\n"},{"Del":" App.screen.check(y, 'a', 'F - test_insert_newline/screen:1')\n"},{"Del":" y = y + Line_height\n"},{"Del":" App.screen.check(y, 'bc', 'F - test_insert_newline/screen:2')\n"},{"Del":" y = y + Line_height\n"},{"Del":" App.screen.check(y, 'def', 'F - test_insert_newline/screen:3')\n"},{"Del":"end\n\n"},{"Del":"function test_insert_from_clipboard()\n io.write('\\ntest_insert_from_clipboard')\n -- display a few lines with cursor on bottom line\n App.screen.init{width=25+30, height=60}\n Lines = load_array{'abc', 'def', 'ghi', 'jkl'}\n Line_width = App.screen.width\n Cursor1 = {line=1, pos=2}\n Screen_top1 = {line=1, pos=1}\n Screen_bottom1 = {}\n"},{"Del":" App.draw()\n"},{"Del":" local y = Margin_top\n"},{"Del":" App.screen.check(y, 'abc', 'F - test_insert_from_clipboard/baseline/screen:1')\n"},{"Del":" y = y + Line_height\n"},{"Del":" App.screen.check(y, 'def', 'F - test_insert_from_clipboard/baseline/screen:2')\n"},{"Del":" y = y + Line_height\n"},{"Del":" App.screen.check(y, 'ghi', 'F - test_insert_from_clipboard/baseline/screen:3')\n -- after hitting the enter key the screen scrolls down\n App.clipboard = 'xy\\nz'\n"},{"Del":" App.run_after_keychord('C-v')\n"},{"Del":" check_eq(Screen_top1.line, 1, 'F - test_insert_from_clipboard/screen_top')\n check_eq(Cursor1.line, 2, 'F - test_insert_from_clipboard/cursor:line')\n check_eq(Cursor1.pos, 2, 'F - test_insert_from_clipboard/cursor:pos')\n"},{"Del":" y = Margin_top\n"},{"Del":" App.screen.check(y, 'axy', 'F - test_insert_from_clipboard/screen:1')\n"},{"Del":" y = y + Line_height\n"},{"Del":" App.screen.check(y, 'zbc', 'F - test_insert_from_clipboard/screen:2')\n"},{"Del":" y = y + Line_height\n"},{"Del":" App.screen.check(y, 'def', 'F - test_insert_from_clipboard/screen:3')\nend\n\n"},{"Del":"function test_move_cursor_using_mouse()\n io.write('\\ntest_move_cursor_using_mouse')\n App.screen.init{width=50, height=60}\n Lines = load_array{'abc', 'def', 'xyz'}\n Line_width = App.screen.width\n Cursor1 = {line=1, pos=1}\n Screen_top1 = {line=1, pos=1}\n Screen_bottom1 = {}\n"},{"Del":" App.draw() -- populate line.y for each line in Lines\n"},{"Del":" local screen_left_margin = 25 -- pixels\n"},{"Del":" App.run_after_mouserelease(screen_left_margin+8,Margin_top+5, '1')\n"},{"Del":" check_eq(Cursor1.line, 1, 'F - test_move_cursor_using_mouse/cursor:line')\n check_eq(Cursor1.pos, 2, 'F - test_move_cursor_using_mouse/cursor:pos')\nend\n\n"},{"Del":"function test_pagedown()\n"},{"Del":" io.write('\\ntest_pagedown')\n"},{"Del":" App.screen.init{width=120, height=45}\n Lines = load_array{'abc', 'def', 'ghi'}\n"},{"Del":" Line_width = App.screen.width\n"},{"Del":" Cursor1 = {line=1, pos=1}\n Screen_top1 = {line=1, pos=1}\n Screen_bottom1 = {}\n"},{"Del":" -- initially the first two lines are displayed\n App.draw()\n"},{"Del":" local y = Margin_top\n"},{"Del":" App.screen.check(y, 'abc', 'F - test_pagedown/baseline/screen:1')\n"},{"Del":" y = y + Line_height\n"},{"Del":" App.screen.check(y, 'def', 'F - test_pagedown/baseline/screen:2')\n -- after pagedown the bottom line becomes the top\n App.run_after_keychord('pagedown')\n"},{"Del":" check_eq(Screen_top1.line, 2, 'F - test_pagedown/screen_top')\n check_eq(Cursor1.line, 2, 'F - test_pagedown/cursor')\n"},{"Del":" y = Margin_top\n"},{"Del":" App.screen.check(y, 'def', 'F - test_pagedown/screen:1')\n"},{"Del":" y = y + Line_height\n"},{"Del":" App.screen.check(y, 'ghi', 'F - test_pagedown/screen:2')\nend\n\n"},{"Del":"function test_pagedown_skips_drawings()\n"},{"Del":" io.write('\\ntest_pagedown_skips_drawings')\n"},{"Del":" -- some lines of text with a drawing intermixed\n"},{"Del":" App.screen.init{width=50, height=80}\n Lines = load_array{'abc', -- height 15\n '```lines', '```', -- height 25\n 'def', -- height 15\n 'ghi'} -- height 15\n"},{"Del":" check_eq(Lines[2].mode, 'drawing', 'F - test_pagedown_skips_drawings/baseline/lines')\n"},{"Del":" Line_width = App.screen.width\n Cursor1 = {line=1, pos=1}\n Screen_top1 = {line=1, pos=1}\n Screen_bottom1 = {}\n"},{"Del":" local drawing_height = 20 + App.screen.width / 2 -- default\n -- initially the screen displays the first line and the drawing\n -- 15px margin + 15px line1 + 10px margin + 25px drawing + 10px margin = 75px < screen height 80px\n"},{"Del":" App.draw()\n"},{"Del":" local y = Margin_top\n"},{"Del":" App.screen.check(y, 'abc', 'F - test_pagedown_skips_drawings/baseline/screen:1')\n"},{"Del":" -- after pagedown the screen draws the drawing up top\n"},{"Del":" -- 15px margin + 10px margin + 25px drawing + 10px margin + 15px line3 = 75px < screen height 80px\n"},{"Del":" App.run_after_keychord('pagedown')\n"},{"Del":" check_eq(Screen_top1.line, 2, 'F - test_pagedown_skips_drawings/screen_top')\n check_eq(Cursor1.line, 3, 'F - test_pagedown_skips_drawings/cursor')\n"},{"Del":" y = Margin_top + drawing_height\n"},{"Del":" App.screen.check(y, 'def', 'F - test_pagedown_skips_drawings/screen:1')\nend\n\n"},{"Del":"function test_pagedown_shows_one_screen_line_in_common()\n io.write('\\ntest_pagedown_shows_one_screen_line_in_common')\n -- some lines of text with a drawing intermixed\n App.screen.init{width=50, height=60}\n Lines = load_array{'abc', 'def ghi jkl', 'mno'}\n Line_width = App.screen.width\n Cursor1 = {line=1, pos=1}\n Screen_top1 = {line=1, pos=1}\n Screen_bottom1 = {}\n"},{"Del":" App.draw()\n"},{"Del":" local y = Margin_top\n"},{"Del":" App.screen.check(y, 'abc', 'F - test_pagedown_shows_one_screen_line_in_common/baseline/screen:1')\n"},{"Del":" y = y + Line_height\n"},{"Del":" App.screen.check(y, 'def ', 'F - test_pagedown_shows_one_screen_line_in_common/baseline/screen:2')\n"},{"Del":" y = y + Line_height\n"},{"Del":" App.screen.check(y, 'ghi ', 'F - test_pagedown_shows_one_screen_line_in_common/baseline/screen:3')\n -- after pagedown the bottom screen line becomes the top\n App.run_after_keychord('pagedown')\n check_eq(Screen_top1.line, 2, 'F - test_pagedown_shows_one_screen_line_in_common/screen_top:line')\n check_eq(Screen_top1.pos, 5, 'F - test_pagedown_shows_one_screen_line_in_common/screen_top:pos')\n check_eq(Cursor1.line, 2, 'F - test_pagedown_shows_one_screen_line_in_common/cursor:line')\n check_eq(Cursor1.pos, 5, 'F - test_pagedown_shows_one_screen_line_in_common/cursor:pos')\n"},{"Del":" y = Margin_top\n"},{"Del":" App.screen.check(y, 'ghi ', 'F - test_pagedown_shows_one_screen_line_in_common/screen:1')\n"},{"Del":" y = y + Line_height\n"},{"Del":" App.screen.check(y, 'jkl', 'F - test_pagedown_shows_one_screen_line_in_common/screen:2')\n"},{"Del":" y = y + Line_height\n"},{"Del":" App.screen.check(y, 'mn', 'F - test_pagedown_shows_one_screen_line_in_common/screen:3')\nend\n\n"},{"Del":"function test_down_arrow_moves_cursor()\n"},{"Del":" io.write('\\ntest_down_arrow_moves_cursor')\n"},{"Del":" App.screen.init{width=120, height=60}\n Lines = load_array{'abc', 'def', 'ghi', 'jkl'}\n"},{"Del":" Line_width = App.screen.width\n"},{"Del":" Cursor1 = {line=1, pos=1}\n Screen_top1 = {line=1, pos=1}\n Screen_bottom1 = {}\n"},{"Del":" -- initially the first three lines are displayed\n App.draw()\n"},{"Del":" local y = Margin_top\n"},{"Del":" App.screen.check(y, 'abc', 'F - test_down_arrow_moves_cursor/baseline/screen:1')\n"},{"Del":" y = y + Line_height\n"},{"Del":" App.screen.check(y, 'def', 'F - test_down_arrow_moves_cursor/baseline/screen:2')\n"},{"Del":" y = y + Line_height\n"},{"Del":" App.screen.check(y, 'ghi', 'F - test_down_arrow_moves_cursor/baseline/screen:3')\n"},{"Del":" -- after hitting the down arrow, the cursor moves down by 1 line\n"},{"Del":" App.run_after_keychord('down')\n"},{"Del":" check_eq(Screen_top1.line, 1, 'F - test_down_arrow_moves_cursor/screen_top')\n"},{"Del":" check_eq(Cursor1.line, 2, 'F - test_down_arrow_moves_cursor/cursor')\n -- the screen is unchanged\n"},{"Del":" y = Margin_top\n"},{"Del":" App.screen.check(y, 'abc', 'F - test_down_arrow_moves_cursor/screen:1')\n"},{"Del":" y = y + Line_height\n"},{"Del":" App.screen.check(y, 'def', 'F - test_down_arrow_moves_cursor/screen:2')\n"},{"Del":" y = y + Line_height\n"},{"Del":" App.screen.check(y, 'ghi', 'F - test_down_arrow_moves_cursor/screen:3')\n"},{"Del":"end\n\nfunction test_down_arrow_scrolls_down_by_one_line()\n"},{"Del":" io.write('\\ntest_down_arrow_scrolls_down_by_one_line')\n"},{"Del":" -- display the first three lines with the cursor on the bottom line\n App.screen.init{width=120, height=60}\n Lines = load_array{'abc', 'def', 'ghi', 'jkl'}\n"},{"Del":" Line_width = App.screen.width\n"},{"Del":" Cursor1 = {line=3, pos=1}\n Screen_top1 = {line=1, pos=1}\n Screen_bottom1 = {}\n"},{"Del":" App.draw()\n"},{"Del":" local y = Margin_top\n"},{"Del":" App.screen.check(y, 'abc', 'F - test_down_arrow_scrolls_down_by_one_line/baseline/screen:1')\n"},{"Del":" y = y + Line_height\n"},{"Del":" App.screen.check(y, 'def', 'F - test_down_arrow_scrolls_down_by_one_line/baseline/screen:2')\n"},{"Del":" y = y + Line_height\n"},{"Del":" App.screen.check(y, 'ghi', 'F - test_down_arrow_scrolls_down_by_one_line/baseline/screen:3')\n -- after hitting the down arrow the screen scrolls down by one line\n App.run_after_keychord('down')\n"},{"Del":" check_eq(Screen_top1.line, 2, 'F - test_down_arrow_scrolls_down_by_one_line/screen_top')\n check_eq(Cursor1.line, 4, 'F - test_down_arrow_scrolls_down_by_one_line/cursor')\n"},{"Del":" y = Margin_top\n"},{"Del":" App.screen.check(y, 'def', 'F - test_down_arrow_scrolls_down_by_one_line/screen:1')\n"},{"Del":" y = y + Line_height\n"},{"Del":" App.screen.check(y, 'ghi', 'F - test_down_arrow_scrolls_down_by_one_line/screen:2')\n"},{"Del":" y = y + Line_height\n"},{"Del":" App.screen.check(y, 'jkl', 'F - test_down_arrow_scrolls_down_by_one_line/screen:3')\n"},{"Del":"end\n\nfunction test_down_arrow_scrolls_down_by_one_screen_line()\n"},{"Del":" io.write('\\ntest_down_arrow_scrolls_down_by_one_screen_line')\n"},{"Del":" -- display the first three lines with the cursor on the bottom line\n App.screen.init{width=25+30, height=60}\n Lines = load_array{'abc', 'def', 'ghi jkl', 'mno'}\n Line_width = App.screen.width\n Cursor1 = {line=3, pos=1}\n Screen_top1 = {line=1, pos=1}\n Screen_bottom1 = {}\n"},{"Del":" App.draw()\n"},{"Del":" local y = Margin_top\n"},{"Del":" App.screen.check(y, 'abc', 'F - test_down_arrow_scrolls_down_by_one_screen_line/baseline/screen:1')\n"},{"Del":" y = y + Line_height\n"},{"Del":" App.screen.check(y, 'def', 'F - test_down_arrow_scrolls_down_by_one_screen_line/baseline/screen:2')\n"},{"Del":" y = y + Line_height\n"},{"Del":" App.screen.check(y, 'ghi ', 'F - test_down_arrow_scrolls_down_by_one_screen_line/baseline/screen:3') -- line wrapping includes trailing whitespace\n -- after hitting the down arrow the screen scrolls down by one line\n App.run_after_keychord('down')\n check_eq(Screen_top1.line, 2, 'F - test_down_arrow_scrolls_down_by_one_screen_line/screen_top')\n check_eq(Cursor1.line, 3, 'F - test_down_arrow_scrolls_down_by_one_screen_line/cursor:line')\n check_eq(Cursor1.pos, 5, 'F - test_down_arrow_scrolls_down_by_one_screen_line/cursor:pos')\n"},{"Del":" y = Margin_top\n"},{"Del":" App.screen.check(y, 'def', 'F - test_down_arrow_scrolls_down_by_one_screen_line/screen:1')\n"},{"Del":" y = y + Line_height\n"},{"Del":" App.screen.check(y, 'ghi ', 'F - test_down_arrow_scrolls_down_by_one_screen_line/screen:2')\n"},{"Del":" y = y + Line_height\n"},{"Del":" App.screen.check(y, 'jkl', 'F - test_down_arrow_scrolls_down_by_one_screen_line/screen:3')\nend\n\nfunction test_down_arrow_scrolls_down_by_one_screen_line_after_splitting_within_word()\n"},{"Del":" io.write('\\ntest_down_arrow_scrolls_down_by_one_screen_line_after_splitting_within_word')\n"},{"Del":" -- display the first three lines with the cursor on the bottom line\n App.screen.init{width=25+30, height=60}\n Lines = load_array{'abc', 'def', 'ghijkl', 'mno'}\n Line_width = App.screen.width\n Cursor1 = {line=3, pos=1}\n Screen_top1 = {line=1, pos=1}\n Screen_bottom1 = {}\n"},{"Del":" App.draw()\n"},{"Del":" local y = Margin_top\n"},{"Del":" App.screen.check(y, 'abc', 'F - test_down_arrow_scrolls_down_by_one_screen_line_after_splitting_within_word/baseline/screen:1')\n"},{"Del":" y = y + Line_height\n"},{"Del":" App.screen.check(y, 'def', 'F - test_down_arrow_scrolls_down_by_one_screen_line_after_splitting_within_word/baseline/screen:2')\n"},{"Del":" y = y + Line_height\n"},{"Del":" App.screen.check(y, 'ghijk', 'F - test_down_arrow_scrolls_down_by_one_screen_line_after_splitting_within_word/baseline/screen:3')\n -- after hitting the down arrow the screen scrolls down by one line\n App.run_after_keychord('down')\n check_eq(Screen_top1.line, 2, 'F - test_down_arrow_scrolls_down_by_one_screen_line_after_splitting_within_word/screen_top')\n check_eq(Cursor1.line, 3, 'F - test_down_arrow_scrolls_down_by_one_screen_line_after_splitting_within_word/cursor:line')\n check_eq(Cursor1.pos, 6, 'F - test_down_arrow_scrolls_down_by_one_screen_line_after_splitting_within_word/cursor:pos')\n"},{"Del":" y = Margin_top\n"},{"Del":" App.screen.check(y, 'def', 'F - test_down_arrow_scrolls_down_by_one_screen_line_after_splitting_within_word/screen:1')\n"},{"Del":" y = y + Line_height\n"},{"Del":" App.screen.check(y, 'ghijk', 'F - test_down_arrow_scrolls_down_by_one_screen_line_after_splitting_within_word/screen:2')\n"},{"Del":" y = y + Line_height\n"},{"Del":" App.screen.check(y, 'l', 'F - test_down_arrow_scrolls_down_by_one_screen_line_after_splitting_within_word/screen:3')\n"},{"Del":"end\n\nfunction test_page_down_followed_by_down_arrow_does_not_scroll_screen_up()\n io.write('\\ntest_page_down_followed_by_down_arrow_does_not_scroll_screen_up')\n App.screen.init{width=25+30, height=60}\n Lines = load_array{'abc', 'def', 'ghijkl', 'mno'}\n Line_width = App.screen.width\n Cursor1 = {line=3, pos=1}\n Screen_top1 = {line=1, pos=1}\n Screen_bottom1 = {}\n"},{"Del":" App.draw()\n"},{"Del":" local y = Margin_top\n"},{"Del":" App.screen.check(y, 'abc', 'F - test_page_down_followed_by_down_arrow_does_not_scroll_screen_up/baseline/screen:1')\n"},{"Del":" y = y + Line_height\n"},{"Del":" App.screen.check(y, 'def', 'F - test_page_down_followed_by_down_arrow_does_not_scroll_screen_up/baseline/screen:2')\n"},{"Del":" y = y + Line_height\n"},{"Del":" App.screen.check(y, 'ghijk', 'F - test_page_down_followed_by_down_arrow_does_not_scroll_screen_up/baseline/screen:3')\n -- after hitting pagedown the screen scrolls down to start of a long line\n App.run_after_keychord('pagedown')\n check_eq(Screen_top1.line, 3, 'F - test_page_down_followed_by_down_arrow_does_not_scroll_screen_up/baseline2/screen_top')\n check_eq(Cursor1.line, 3, 'F - test_page_down_followed_by_down_arrow_does_not_scroll_screen_up/baseline2/cursor:line')\n check_eq(Cursor1.pos, 1, 'F - test_page_down_followed_by_down_arrow_does_not_scroll_screen_up/baseline2/cursor:pos')\n -- after hitting down arrow the screen doesn't scroll down further, and certainly doesn't scroll up\n App.run_after_keychord('down')\n check_eq(Screen_top1.line, 3, 'F - test_page_down_followed_by_down_arrow_does_not_scroll_screen_up/screen_top')\n check_eq(Cursor1.line, 3, 'F - test_page_down_followed_by_down_arrow_does_not_scroll_screen_up/cursor:line')\n check_eq(Cursor1.pos, 6, 'F - test_page_down_followed_by_down_arrow_does_not_scroll_screen_up/cursor:pos')\n"},{"Del":" y = Margin_top\n"},{"Del":" App.screen.check(y, 'ghijk', 'F - test_page_down_followed_by_down_arrow_does_not_scroll_screen_up/screen:1')\n"},{"Del":" y = y + Line_height\n"},{"Del":" App.screen.check(y, 'l', 'F - test_page_down_followed_by_down_arrow_does_not_scroll_screen_up/screen:2')\n"},{"Del":" y = y + Line_height\n"},{"Del":" App.screen.check(y, 'mno', 'F - test_page_down_followed_by_down_arrow_does_not_scroll_screen_up/screen:3')\n"},{"Del":"end\n\nfunction test_up_arrow_moves_cursor()\n"},{"Del":" io.write('\\ntest_up_arrow_moves_cursor')\n"},{"Del":" -- display the first 3 lines with the cursor on the bottom line\n App.screen.init{width=120, height=60}\n Lines = load_array{'abc', 'def', 'ghi', 'jkl'}\n Line_width = 120\n Cursor1 = {line=3, pos=1}\n Screen_top1 = {line=1, pos=1}\n Screen_bottom1 = {}\n"},{"Del":" App.draw()\n"},{"Del":" local y = Margin_top\n"},{"Del":" App.screen.check(y, 'abc', 'F - test_up_arrow_moves_cursor/baseline/screen:1')\n"},{"Del":" y = y + Line_height\n"},{"Del":" App.screen.check(y, 'def', 'F - test_up_arrow_moves_cursor/baseline/screen:2')\n"},{"Del":" y = y + Line_height\n"},{"Del":" App.screen.check(y, 'ghi', 'F - test_up_arrow_moves_cursor/baseline/screen:3')\n"},{"Del":" -- after hitting the up arrow the cursor moves up by 1 line\n"},{"Del":" App.run_after_keychord('up')\n"},{"Del":" check_eq(Screen_top1.line, 1, 'F - test_up_arrow_moves_cursor/screen_top')\n check_eq(Cursor1.line, 2, 'F - test_up_arrow_moves_cursor/cursor')\n -- the screen is unchanged\n"},{"Del":" y = Margin_top\n"},{"Del":" App.screen.check(y, 'abc', 'F - test_up_arrow_moves_cursor/screen:1')\n"},{"Del":" y = y + Line_height\n"},{"Del":" App.screen.check(y, 'def', 'F - test_up_arrow_moves_cursor/screen:2')\n"},{"Del":" y = y + Line_height\n"},{"Del":" App.screen.check(y, 'ghi', 'F - test_up_arrow_moves_cursor/screen:3')\n"},{"Del":"end\n\nfunction test_up_arrow_scrolls_up_by_one_line()\n"},{"Del":" io.write('\\ntest_up_arrow_scrolls_up_by_one_line')\n"},{"Del":" -- display the lines 2/3/4 with the cursor on line 2\n App.screen.init{width=120, height=60}\n Lines = load_array{'abc', 'def', 'ghi', 'jkl'}\n Line_width = 120\n Cursor1 = {line=2, pos=1}\n Screen_top1 = {line=2, pos=1}\n Screen_bottom1 = {}\n"},{"Del":" App.draw()\n"},{"Del":" local y = Margin_top\n"},{"Del":" App.screen.check(y, 'def', 'F - test_up_arrow_scrolls_up_by_one_line/baseline/screen:1')\n"},{"Del":" y = y + Line_height\n"},{"Del":" App.screen.check(y, 'ghi', 'F - test_up_arrow_scrolls_up_by_one_line/baseline/screen:2')\n"},{"Del":" y = y + Line_height\n"},{"Del":" App.screen.check(y, 'jkl', 'F - test_up_arrow_scrolls_up_by_one_line/baseline/screen:3')\n -- after hitting the up arrow the screen scrolls up by one line\n App.run_after_keychord('up')\n"},{"Del":" check_eq(Screen_top1.line, 1, 'F - test_up_arrow_scrolls_up_by_one_line/screen_top')\n check_eq(Cursor1.line, 1, 'F - test_up_arrow_scrolls_up_by_one_line/cursor')\n"},{"Del":" y = Margin_top\n"},{"Del":" App.screen.check(y, 'abc', 'F - test_up_arrow_scrolls_up_by_one_line/screen:1')\n"},{"Del":" y = y + Line_height\n"},{"Del":" App.screen.check(y, 'def', 'F - test_up_arrow_scrolls_up_by_one_line/screen:2')\n"},{"Del":" y = y + Line_height\n"},{"Del":" App.screen.check(y, 'ghi', 'F - test_up_arrow_scrolls_up_by_one_line/screen:3')\n"},{"Del":"end\n\nfunction test_up_arrow_scrolls_up_by_one_screen_line()\n"},{"Del":" io.write('\\ntest_up_arrow_scrolls_up_by_one_screen_line')\n"},{"Del":" -- display lines starting from second screen line of a line\n"},{"Del":" App.screen.init{width=25+30, height=60}\n Lines = load_array{'abc', 'def', 'ghi jkl', 'mno'}\n"},{"Del":" Line_width = App.screen.width\n"},{"Del":" Cursor1 = {line=3, pos=6}\n Screen_top1 = {line=3, pos=5}\n"},{"Del":" Screen_bottom1 = {}\n"},{"Del":" App.draw()\n"},{"Del":" local y = Margin_top\n"},{"Del":" App.screen.check(y, 'jkl', 'F - test_up_arrow_scrolls_up_by_one_screen_line/baseline/screen:1')\n"},{"Del":" y = y + Line_height\n"},{"Del":" App.screen.check(y, 'mno', 'F - test_up_arrow_scrolls_up_by_one_screen_line/baseline/screen:2')\n"},{"Del":" -- after hitting the up arrow the screen scrolls up to first screen line\n"},{"Del":" App.run_after_keychord('up')\n"},{"Del":" y = Margin_top\n"},{"Del":" App.screen.check(y, 'ghi ', 'F - test_up_arrow_scrolls_up_by_one_screen_line/screen:1')\n"},{"Del":" y = y + Line_height\n"},{"Del":" App.screen.check(y, 'jkl', 'F - test_up_arrow_scrolls_up_by_one_screen_line/screen:2')\n"},{"Del":" y = y + Line_height\n"},{"Del":" App.screen.check(y, 'mno', 'F - test_up_arrow_scrolls_up_by_one_screen_line/screen:3')\n check_eq(Screen_top1.line, 3, 'F - test_up_arrow_scrolls_up_by_one_screen_line/screen_top')\n check_eq(Screen_top1.pos, 1, 'F - test_up_arrow_scrolls_up_by_one_screen_line/screen_top')\n"},{"Del":" check_eq(Cursor1.line, 3, 'F - test_up_arrow_scrolls_up_by_one_screen_line/cursor:line')\n check_eq(Cursor1.pos, 1, 'F - test_up_arrow_scrolls_up_by_one_screen_line/cursor:pos')\n"},{"Del":"end\n\n"},{"Del":"function test_up_arrow_scrolls_up_to_final_screen_line()\n"},{"Del":" io.write('\\ntest_up_arrow_scrolls_up_to_final_screen_line')\n"},{"Del":" -- display lines starting just after a long line\n App.screen.init{width=25+30, height=60}\n Lines = load_array{'abc def', 'ghi', 'jkl', 'mno'}\n Line_width = App.screen.width\n Cursor1 = {line=2, pos=1}\n Screen_top1 = {line=2, pos=1}\n Screen_bottom1 = {}\n"},{"Del":" App.draw()\n"},{"Del":" local y = Margin_top\n"},{"Del":" App.screen.check(y, 'ghi', 'F - test_up_arrow_scrolls_up_to_final_screen_line/baseline/screen:1')\n"},{"Del":" y = y + Line_height\n"},{"Del":" App.screen.check(y, 'jkl', 'F - test_up_arrow_scrolls_up_to_final_screen_line/baseline/screen:2')\n"},{"Del":" y = y + Line_height\n"},{"Del":" App.screen.check(y, 'mno', 'F - test_up_arrow_scrolls_up_to_final_screen_line/baseline/screen:3')\n -- after hitting the up arrow the screen scrolls up to final screen line of previous line\n App.run_after_keychord('up')\n"},{"Del":" y = Margin_top\n"},{"Del":" App.screen.check(y, 'def', 'F - test_up_arrow_scrolls_up_to_final_screen_line/screen:1')\n"},{"Del":" y = y + Line_height\n"},{"Del":" App.screen.check(y, 'ghi', 'F - test_up_arrow_scrolls_up_to_final_screen_line/screen:2')\n"},{"Del":" y = y + Line_height\n"},{"Del":" App.screen.check(y, 'jkl', 'F - test_up_arrow_scrolls_up_to_final_screen_line/screen:3')\n check_eq(Screen_top1.line, 1, 'F - test_up_arrow_scrolls_up_to_final_screen_line/screen_top')\n check_eq(Screen_top1.pos, 5, 'F - test_up_arrow_scrolls_up_to_final_screen_line/screen_top')\n"},{"Del":" check_eq(Cursor1.line, 1, 'F - test_up_arrow_scrolls_up_to_final_screen_line/cursor:line')\n check_eq(Cursor1.pos, 5, 'F - test_up_arrow_scrolls_up_to_final_screen_line/cursor:pos')\n"},{"Del":"end\n\n"},{"Del":"function test_up_arrow_scrolls_up_to_empty_line()\n"},{"Del":" io.write('\\ntest_up_arrow_scrolls_up_to_empty_line')\n"},{"Del":" -- display a screenful of text with an empty line just above it outside the screen\n App.screen.init{width=120, height=60}\n Lines = load_array{'', 'abc', 'def', 'ghi', 'jkl'}\n Line_width = 120\n Cursor1 = {line=2, pos=1}\n Screen_top1 = {line=2, pos=1}\n Screen_bottom1 = {}\n"},{"Del":" App.draw()\n"},{"Del":" local y = Margin_top\n"},{"Del":" App.screen.check(y, 'abc', 'F - test_up_arrow_scrolls_up_to_empty_line/baseline/screen:1')\n"},{"Del":" y = y + Line_height\n"},{"Del":" App.screen.check(y, 'def', 'F - test_up_arrow_scrolls_up_to_empty_line/baseline/screen:2')\n"},{"Del":" y = y + Line_height\n"},{"Del":" App.screen.check(y, 'ghi', 'F - test_up_arrow_scrolls_up_to_empty_line/baseline/screen:3')\n"},{"Del":" -- after hitting the up arrow the screen scrolls up by one line\n App.run_after_keychord('up')\n"},{"Del":" check_eq(Screen_top1.line, 1, 'F - test_up_arrow_scrolls_up_to_empty_line/screen_top')\n check_eq(Cursor1.line, 1, 'F - test_up_arrow_scrolls_up_to_empty_line/cursor')\n"},{"Del":" y = Margin_top\n"},{"Del":" -- empty first line\n"},{"Del":" y = y + Line_height\n"},{"Del":" App.screen.check(y, 'abc', 'F - test_up_arrow_scrolls_up_to_empty_line/screen:2')\n"},{"Del":" y = y + Line_height\n"},{"Del":" App.screen.check(y, 'def', 'F - test_up_arrow_scrolls_up_to_empty_line/screen:3')\n"},{"Del":"end\n\n"},{"Del":"function test_pageup()\n io.write('\\ntest_pageup')\n App.screen.init{width=120, height=45}\n Lines = load_array{'abc', 'def', 'ghi'}\n Line_width = App.screen.width\n Cursor1 = {line=2, pos=1}\n Screen_top1 = {line=2, pos=1}\n Screen_bottom1 = {}\n"},{"Del":" -- initially the last two lines are displayed\n App.draw()\n"},{"Del":" local y = Margin_top\n"},{"Del":" App.screen.check(y, 'def', 'F - test_pageup/baseline/screen:1')\n"},{"Del":" y = y + Line_height\n"},{"Del":" App.screen.check(y, 'ghi', 'F - test_pageup/baseline/screen:2')\n -- after pageup the cursor goes to first line\n App.run_after_keychord('pageup')\n check_eq(Screen_top1.line, 1, 'F - test_pageup/screen_top')\n check_eq(Cursor1.line, 1, 'F - test_pageup/cursor')\n"},{"Del":" y = Margin_top\n"},{"Del":" App.screen.check(y, 'abc', 'F - test_pageup/screen:1')\n"},{"Del":" y = y + Line_height\n"},{"Del":" App.screen.check(y, 'def', 'F - test_pageup/screen:2')\nend\n\nfunction test_pageup_scrolls_up_by_screen_line()\n io.write('\\ntest_pageup_scrolls_up_by_screen_line')\n -- display the first three lines with the cursor on the bottom line\n App.screen.init{width=25+30, height=60}\n Lines = load_array{'abc def', 'ghi', 'jkl', 'mno'}\n Line_width = App.screen.width\n Cursor1 = {line=2, pos=1}\n Screen_top1 = {line=2, pos=1}\n Screen_bottom1 = {}\n"},{"Del":" App.draw()\n"},{"Del":" local y = Margin_top\n"},{"Del":" App.screen.check(y, 'ghi', 'F - test_pageup_scrolls_up_by_screen_line/baseline/screen:1')\n"},{"Del":" y = y + Line_height\n"},{"Del":" App.screen.check(y, 'jkl', 'F - test_pageup_scrolls_up_by_screen_line/baseline/screen:2')\n"},{"Del":" y = y + Line_height\n"},{"Del":" App.screen.check(y, 'mno', 'F - test_pageup_scrolls_up_by_screen_line/baseline/screen:3') -- line wrapping includes trailing whitespace\n -- after hitting the page-up key the screen scrolls up to top\n App.run_after_keychord('pageup')\n check_eq(Screen_top1.line, 1, 'F - test_pageup_scrolls_up_by_screen_line/screen_top')\n check_eq(Cursor1.line, 1, 'F - test_pageup_scrolls_up_by_screen_line/cursor:line')\n check_eq(Cursor1.pos, 1, 'F - test_pageup_scrolls_up_by_screen_line/cursor:pos')\n"},{"Del":" y = Margin_top\n"},{"Del":" App.screen.check(y, 'abc ', 'F - test_pageup_scrolls_up_by_screen_line/screen:1')\n"},{"Del":" y = y + Line_height\n"},{"Del":" App.screen.check(y, 'def', 'F - test_pageup_scrolls_up_by_screen_line/screen:2')\n"},{"Del":" y = y + Line_height\n"},{"Del":" App.screen.check(y, 'ghi', 'F - test_pageup_scrolls_up_by_screen_line/screen:3')\nend\n\nfunction test_pageup_scrolls_up_from_middle_screen_line()\n io.write('\\ntest_pageup_scrolls_up_from_middle_screen_line')\n -- display a few lines starting from the middle of a line (Cursor1.pos > 1)\n App.screen.init{width=25+30, height=60}\n Lines = load_array{'abc def', 'ghi jkl', 'mno'}\n Line_width = App.screen.width\n Cursor1 = {line=2, pos=5}\n Screen_top1 = {line=2, pos=5}\n Screen_bottom1 = {}\n"},{"Del":" App.draw()\n"},{"Del":" local y = Margin_top\n"},{"Del":" App.screen.check(y, 'jkl', 'F - test_pageup_scrolls_up_from_middle_screen_line/baseline/screen:2')\n"},{"Del":" y = y + Line_height\n"},{"Del":" App.screen.check(y, 'mno', 'F - test_pageup_scrolls_up_from_middle_screen_line/baseline/screen:3') -- line wrapping includes trailing whitespace\n -- after hitting the page-up key the screen scrolls up to top\n App.run_after_keychord('pageup')\n check_eq(Screen_top1.line, 1, 'F - test_pageup_scrolls_up_from_middle_screen_line/screen_top')\n check_eq(Cursor1.line, 1, 'F - test_pageup_scrolls_up_from_middle_screen_line/cursor:line')\n check_eq(Cursor1.pos, 1, 'F - test_pageup_scrolls_up_from_middle_screen_line/cursor:pos')\n"},{"Del":" y = Margin_top\n"},{"Del":" App.screen.check(y, 'abc ', 'F - test_pageup_scrolls_up_from_middle_screen_line/screen:1')\n"},{"Del":" y = y + Line_height\n"},{"Del":" App.screen.check(y, 'def', 'F - test_pageup_scrolls_up_from_middle_screen_line/screen:2')\n"},{"Del":" y = y + Line_height\n"},{"Del":" App.screen.check(y, 'ghi ', 'F - test_pageup_scrolls_up_from_middle_screen_line/screen:3')\n"},{"Del":"end\n\nfunction test_enter_on_bottom_line_scrolls_down()\n io.write('\\ntest_enter_on_bottom_line_scrolls_down')\n -- display a few lines with cursor on bottom line\n App.screen.init{width=25+30, height=60}\n Lines = load_array{'abc', 'def', 'ghi', 'jkl'}\n Line_width = App.screen.width\n Cursor1 = {line=3, pos=2}\n Screen_top1 = {line=1, pos=1}\n Screen_bottom1 = {}\n"},{"Del":" App.draw()\n"},{"Del":" local y = Margin_top\n"},{"Del":" App.screen.check(y, 'abc', 'F - test_enter_on_bottom_line_scrolls_down/baseline/screen:1')\n"},{"Del":" y = y + Line_height\n"},{"Del":" App.screen.check(y, 'def', 'F - test_enter_on_bottom_line_scrolls_down/baseline/screen:2')\n"},{"Del":" y = y + Line_height\n"},{"Del":" App.screen.check(y, 'ghi', 'F - test_enter_on_bottom_line_scrolls_down/baseline/screen:3')\n -- after hitting the enter key the screen scrolls down\n App.run_after_keychord('return')\n check_eq(Screen_top1.line, 2, 'F - test_enter_on_bottom_line_scrolls_down/screen_top')\n check_eq(Cursor1.line, 4, 'F - test_enter_on_bottom_line_scrolls_down/cursor:line')\n check_eq(Cursor1.pos, 1, 'F - test_enter_on_bottom_line_scrolls_down/cursor:pos')\n"},{"Del":" y = Margin_top\n"},{"Del":" App.screen.check(y, 'def', 'F - test_enter_on_bottom_line_scrolls_down/screen:1')\n"},{"Del":" y = y + Line_height\n"},{"Del":" App.screen.check(y, 'g', 'F - test_enter_on_bottom_line_scrolls_down/screen:2')\n"},{"Del":" y = y + Line_height\n"},{"Del":" App.screen.check(y, 'hi', 'F - test_enter_on_bottom_line_scrolls_down/screen:3')\n"},{"Del":"end\n\n"},{"Del":"function test_enter_on_final_line_avoids_scrolling_down_when_not_at_bottom()\n io.write('\\ntest_enter_on_final_line_avoids_scrolling_down_when_not_at_bottom')\n -- display just the bottom line on screen\n App.screen.init{width=25+30, height=60}\n Lines = load_array{'abc', 'def', 'ghi', 'jkl'}\n Line_width = App.screen.width\n Cursor1 = {line=4, pos=2}\n Screen_top1 = {line=4, pos=1}\n Screen_bottom1 = {}\n"},{"Del":" App.draw()\n"},{"Del":" local y = Margin_top\n"},{"Del":" App.screen.check(y, 'jkl', 'F - test_enter_on_final_line_avoids_scrolling_down_when_not_at_bottom/baseline/screen:1')\n -- after hitting the enter key the screen does not scroll down\n App.run_after_keychord('return')\n check_eq(Screen_top1.line, 4, 'F - test_enter_on_final_line_avoids_scrolling_down_when_not_at_bottom/screen_top')\n check_eq(Cursor1.line, 5, 'F - test_enter_on_final_line_avoids_scrolling_down_when_not_at_bottom/cursor:line')\n check_eq(Cursor1.pos, 1, 'F - test_enter_on_final_line_avoids_scrolling_down_when_not_at_bottom/cursor:pos')\n"},{"Del":" y = Margin_top\n"},{"Del":" App.screen.check(y, 'j', 'F - test_enter_on_final_line_avoids_scrolling_down_when_not_at_bottom/screen:1')\n"},{"Del":" y = y + Line_height\n"},{"Del":" App.screen.check(y, 'kl', 'F - test_enter_on_final_line_avoids_scrolling_down_when_not_at_bottom/screen:2')\nend\n\n"},{"Del":"function test_position_cursor_on_recently_edited_wrapping_line()\n -- draw a line wrapping over 2 screen lines\n io.write('\\ntest_position_cursor_on_recently_edited_wrapping_line')\n App.screen.init{width=120, height=200}\n Lines = load_array{'abc def ghi jkl mno pqr ', 'xyz'}\n Line_width = 100\n Cursor1 = {line=1, pos=25}\n Screen_top1 = {line=1, pos=1}\n Screen_bottom1 = {}\n"},{"Del":" App.draw()\n"},{"Del":" local y = Margin_top\n"},{"Del":" -- I don't understand why 120px fits so much on a fake screen, but whatever..\n App.screen.check(y, 'abc def ghi ', 'F - test_position_cursor_on_recently_edited_wrapping_line/baseline1/screen:1')\n"},{"Del":" y = y + Line_height\n"},{"Del":" App.screen.check(y, 'jkl mno pqr ', 'F - test_position_cursor_on_recently_edited_wrapping_line/baseline1/screen:2')\n"},{"Del":" y = y + Line_height\n"},{"Del":" App.screen.check(y, 'xyz', 'F - test_position_cursor_on_recently_edited_wrapping_line/baseline1/screen:3')\n -- add to the line until it's wrapping over 3 screen lines\n App.run_after_textinput('s')\n App.run_after_textinput('t')\n App.run_after_textinput('u')\n check_eq(Cursor1.pos, 28, 'F - test_move_cursor_using_mouse/cursor:pos')\n"},{"Del":" y = Margin_top\n"},{"Del":" App.screen.check(y, 'abc def ghi ', 'F - test_position_cursor_on_recently_edited_wrapping_line/baseline2/screen:1')\n"},{"Del":" y = y + Line_height\n"},{"Del":" App.screen.check(y, 'jkl mno pqr ', 'F - test_position_cursor_on_recently_edited_wrapping_line/baseline2/screen:2')\n"},{"Del":" y = y + Line_height\n"},{"Del":" App.screen.check(y, 'stu', 'F - test_position_cursor_on_recently_edited_wrapping_line/baseline2/screen:3')\n -- try to move the cursor earlier in the third screen line by clicking the mouse\n"},{"Del":" local screen_left_margin = 25 -- pixels\n"},{"Del":" App.run_after_mouserelease(screen_left_margin+8,Margin_top+Line_height*2+5, '1')\n"},{"Del":" -- cursor should move\n check_eq(Cursor1.line, 1, 'F - test_move_cursor_using_mouse/cursor:line')\n check_eq(Cursor1.pos, 26, 'F - test_move_cursor_using_mouse/cursor:pos')\n"},{"Del":"end\n\nfunction test_backspace_can_scroll_up()\n io.write('\\ntest_backspace_can_scroll_up')\n -- display the lines 2/3/4 with the cursor on line 2\n App.screen.init{width=120, height=60}\n Lines = load_array{'abc', 'def', 'ghi', 'jkl'}\n Line_width = 120\n Cursor1 = {line=2, pos=1}\n Screen_top1 = {line=2, pos=1}\n Screen_bottom1 = {}\n"},{"Del":" App.draw()\n"},{"Del":" local y = Margin_top\n"},{"Del":" App.screen.check(y, 'def', 'F - test_backspace_can_scroll_up/baseline/screen:1')\n"},{"Del":" y = y + Line_height\n"},{"Del":" App.screen.check(y, 'ghi', 'F - test_backspace_can_scroll_up/baseline/screen:2')\n"},{"Del":" y = y + Line_height\n"},{"Del":" App.screen.check(y, 'jkl', 'F - test_backspace_can_scroll_up/baseline/screen:3')\n -- after hitting backspace the screen scrolls up by one line\n App.run_after_keychord('backspace')\n check_eq(Screen_top1.line, 1, 'F - test_backspace_can_scroll_up/screen_top')\n check_eq(Cursor1.line, 1, 'F - test_backspace_can_scroll_up/cursor')\n"},{"Del":" y = Margin_top\n"},{"Del":" App.screen.check(y, 'abcdef', 'F - test_backspace_can_scroll_up/screen:1')\n"},{"Del":" y = y + Line_height\n"},{"Del":" App.screen.check(y, 'ghi', 'F - test_backspace_can_scroll_up/screen:2')\n"},{"Del":" y = y + Line_height\n"},{"Del":" App.screen.check(y, 'jkl', 'F - test_backspace_can_scroll_up/screen:3')\nend\n\nfunction test_backspace_can_scroll_up_screen_line()\n io.write('\\ntest_backspace_can_scroll_up_screen_line')\n -- display lines starting from second screen line of a line\n App.screen.init{width=25+30, height=60}\n Lines = load_array{'abc', 'def', 'ghi jkl', 'mno'}\n Line_width = App.screen.width\n Cursor1 = {line=3, pos=5}\n Screen_top1 = {line=3, pos=5}\n Screen_bottom1 = {}\n"},{"Del":" App.draw()\n"},{"Del":" local y = Margin_top\n"},{"Del":" App.screen.check(y, 'jkl', 'F - test_backspace_can_scroll_up_screen_line/baseline/screen:1')\n"},{"Del":" y = y + Line_height\n"},{"Del":" App.screen.check(y, 'mno', 'F - test_backspace_can_scroll_up_screen_line/baseline/screen:2')\n -- after hitting backspace the screen scrolls up by one screen line\n App.run_after_keychord('backspace')\n"},{"Del":" y = Margin_top\n"},{"Del":" App.screen.check(y, 'ghijk', 'F - test_backspace_can_scroll_up_screen_line/screen:1')\n"},{"Del":" y = y + Line_height\n"},{"Del":" App.screen.check(y, 'l', 'F - test_backspace_can_scroll_up_screen_line/screen:2')\n"},{"Del":" y = y + Line_height\n"},{"Del":" App.screen.check(y, 'mno', 'F - test_backspace_can_scroll_up_screen_line/screen:3')\n check_eq(Screen_top1.line, 3, 'F - test_backspace_can_scroll_up_screen_line/screen_top')\n check_eq(Screen_top1.pos, 1, 'F - test_backspace_can_scroll_up_screen_line/screen_top')\n check_eq(Cursor1.line, 3, 'F - test_backspace_can_scroll_up_screen_line/cursor:line')\n check_eq(Cursor1.pos, 4, 'F - test_backspace_can_scroll_up_screen_line/cursor:pos')\n"},{"Del":"end\n\n-- some tests for operating over selections created using Shift- chords\n-- we're just testing delete_selection, and it works the same for all keys\n\nfunction test_backspace_over_selection()\n io.write('\\ntest_backspace_over_selection')\n -- select just one character within a line with cursor before selection\n App.screen.init{width=25+30, height=60}\n Lines = load_array{'abc', 'def', 'ghi', 'jkl', 'mno'}\n Line_width = App.screen.width\n Cursor1 = {line=1, pos=1}\n Selection1 = {line=1, pos=2}\n"},{"Del":" -- backspace deletes the selected character, even though it's after the cursor\n App.run_after_keychord('backspace')\n check_eq(Lines[1].data, 'bc', \"F - test_backspace_over_selection/data\")\n -- cursor (remains) at start of selection\n check_eq(Cursor1.line, 1, \"F - test_backspace_over_selection/cursor:line\")\n check_eq(Cursor1.pos, 1, \"F - test_backspace_over_selection/cursor:pos\")\n -- selection is cleared\n check_nil(Selection1.line, \"F - test_backspace_over_selection/selection\")\n"},{"Del":"end\n\n"},{"Del":"function test_backspace_over_selection_reverse()\n"},{"Del":" io.write('\\ntest_backspace_over_selection_reverse')\n"},{"Del":" -- select just one character within a line with cursor after selection\n App.screen.init{width=25+30, height=60}\n Lines = load_array{'abc', 'def', 'ghi', 'jkl', 'mno'}\n Line_width = App.screen.width\n Cursor1 = {line=1, pos=2}\n Selection1 = {line=1, pos=1}\n"},{"Del":" -- backspace deletes the selected character\n App.run_after_keychord('backspace')\n check_eq(Lines[1].data, 'bc', \"F - test_backspace_over_selection_reverse/data\")\n -- cursor moves to start of selection\n check_eq(Cursor1.line, 1, \"F - test_backspace_over_selection_reverse/cursor:line\")\n check_eq(Cursor1.pos, 1, \"F - test_backspace_over_selection_reverse/cursor:pos\")\n -- selection is cleared\n check_nil(Selection1.line, \"F - test_backspace_over_selection_reverse/selection\")\nend\n\nfunction test_backspace_over_multiple_lines()\n"},{"Del":" io.write('\\ntest_backspace_over_multiple_lines')\n"},{"Del":" -- select just one character within a line with cursor after selection\n App.screen.init{width=25+30, height=60}\n Lines = load_array{'abc', 'def', 'ghi', 'jkl', 'mno'}\n Line_width = App.screen.width\n Cursor1 = {line=1, pos=2}\n Selection1 = {line=4, pos=2}\n"},{"Del":" -- backspace deletes the region and joins the remaining portions of lines on either side\n App.run_after_keychord('backspace')\n check_eq(Lines[1].data, 'akl', \"F - test_backspace_over_multiple_lines/data:1\")\n check_eq(Lines[2].data, 'mno', \"F - test_backspace_over_multiple_lines/data:2\")\n -- cursor remains at start of selection\n check_eq(Cursor1.line, 1, \"F - test_backspace_over_multiple_lines/cursor:line\")\n check_eq(Cursor1.pos, 2, \"F - test_backspace_over_multiple_lines/cursor:pos\")\n -- selection is cleared\n check_nil(Selection1.line, \"F - test_backspace_over_multiple_lines/selection\")\nend\n\nfunction test_backspace_to_end_of_line()\n"},{"Del":" io.write('\\ntest_backspace_to_end_of_line')\n"},{"Del":" -- select region from cursor to end of line\n App.screen.init{width=25+30, height=60}\n Lines = load_array{'abc', 'def', 'ghi', 'jkl', 'mno'}\n Line_width = App.screen.width\n Cursor1 = {line=1, pos=2}\n Selection1 = {line=1, pos=4}\n"},{"Del":" -- backspace deletes rest of line without joining to any other line\n App.run_after_keychord('backspace')\n check_eq(Lines[1].data, 'a', \"F - test_backspace_to_start_of_line/data:1\")\n check_eq(Lines[2].data, 'def', \"F - test_backspace_to_start_of_line/data:2\")\n -- cursor remains at start of selection\n check_eq(Cursor1.line, 1, \"F - test_backspace_to_start_of_line/cursor:line\")\n check_eq(Cursor1.pos, 2, \"F - test_backspace_to_start_of_line/cursor:pos\")\n -- selection is cleared\n check_nil(Selection1.line, \"F - test_backspace_to_start_of_line/selection\")\nend\n\nfunction test_backspace_to_start_of_line()\n"},{"Del":" io.write('\\ntest_backspace_to_start_of_line')\n"},{"Del":" -- select region from cursor to start of line\n App.screen.init{width=25+30, height=60}\n Lines = load_array{'abc', 'def', 'ghi', 'jkl', 'mno'}\n Line_width = App.screen.width\n Cursor1 = {line=2, pos=1}\n Selection1 = {line=2, pos=3}\n"},{"Del":" -- backspace deletes beginning of line without joining to any other line\n App.run_after_keychord('backspace')\n check_eq(Lines[1].data, 'abc', \"F - test_backspace_to_start_of_line/data:1\")\n check_eq(Lines[2].data, 'f', \"F - test_backspace_to_start_of_line/data:2\")\n -- cursor remains at start of selection\n check_eq(Cursor1.line, 2, \"F - test_backspace_to_start_of_line/cursor:line\")\n check_eq(Cursor1.pos, 1, \"F - test_backspace_to_start_of_line/cursor:pos\")\n -- selection is cleared\n check_nil(Selection1.line, \"F - test_backspace_to_start_of_line/selection\")\nend\n\n"},{"Del":"function test_undo_insert_text()\n io.write('\\ntest_undo_insert_text')\n App.screen.init{width=120, height=60}\n Lines = load_array{'abc', 'def', 'xyz'}\n Line_width = App.screen.width\n Cursor1 = {line=2, pos=4}\n Screen_top1 = {line=1, pos=1}\n Screen_bottom1 = {}\n"},{"Del":" -- insert a character\n App.run_after_textinput('g')\n check_eq(Cursor1.line, 2, 'F - test_undo_insert_text/baseline/cursor:line')\n check_eq(Cursor1.pos, 5, 'F - test_undo_insert_text/baseline/cursor:pos')\n check_nil(Selection1.line, 'F - test_undo_insert_text/baseline/selection:line')\n check_nil(Selection1.pos, 'F - test_undo_insert_text/baseline/selection:pos')\n"},{"Del":" local y = Margin_top\n"},{"Del":" App.screen.check(y, 'abc', 'F - test_undo_insert_text/baseline/screen:1')\n"},{"Del":" y = y + Line_height\n"},{"Del":" App.screen.check(y, 'defg', 'F - test_undo_insert_text/baseline/screen:2')\n"},{"Del":" y = y + Line_height\n"},{"Del":" App.screen.check(y, 'xyz', 'F - test_undo_insert_text/baseline/screen:3')\n -- undo\n"},{"Del":" App.run_after_keychord('C-z')\n"},{"Del":" check_eq(Cursor1.line, 2, 'F - test_undo_insert_text/cursor:line')\n check_eq(Cursor1.pos, 4, 'F - test_undo_insert_text/cursor:pos')\n check_nil(Selection1.line, 'F - test_undo_insert_text/selection:line')\n check_nil(Selection1.pos, 'F - test_undo_insert_text/selection:pos')\n"},{"Del":" y = Margin_top\n"},{"Del":" App.screen.check(y, 'abc', 'F - test_undo_insert_text/screen:1')\n"},{"Del":" y = y + Line_height\n"},{"Del":" App.screen.check(y, 'def', 'F - test_undo_insert_text/screen:2')\n"},{"Del":" y = y + Line_height\n"},{"Del":" App.screen.check(y, 'xyz', 'F - test_undo_insert_text/screen:3')\nend\n\nfunction test_undo_delete_text()\n io.write('\\ntest_undo_delete_text')\n App.screen.init{width=120, height=60}\n Lines = load_array{'abc', 'defg', 'xyz'}\n Line_width = App.screen.width\n Cursor1 = {line=2, pos=5}\n Screen_top1 = {line=1, pos=1}\n Screen_bottom1 = {}\n"},{"Del":" -- delete a character\n App.run_after_keychord('backspace')\n check_eq(Cursor1.line, 2, 'F - test_undo_delete_text/baseline/cursor:line')\n check_eq(Cursor1.pos, 4, 'F - test_undo_delete_text/baseline/cursor:pos')\n check_nil(Selection1.line, 'F - test_undo_delete_text/baseline/selection:line')\n check_nil(Selection1.pos, 'F - test_undo_delete_text/baseline/selection:pos')\n"},{"Del":" local y = Margin_top\n"},{"Del":" App.screen.check(y, 'abc', 'F - test_undo_delete_text/baseline/screen:1')\n"},{"Del":" y = y + Line_height\n"},{"Del":" App.screen.check(y, 'def', 'F - test_undo_delete_text/baseline/screen:2')\n"},{"Del":" y = y + Line_height\n"},{"Del":" App.screen.check(y, 'xyz', 'F - test_undo_delete_text/baseline/screen:3')\n -- undo\n--? -- after undo, the backspaced key is selected\n"},{"Del":" App.run_after_keychord('C-z')\n"},{"Del":" check_eq(Cursor1.line, 2, 'F - test_undo_delete_text/cursor:line')\n check_eq(Cursor1.pos, 5, 'F - test_undo_delete_text/cursor:pos')\n check_nil(Selection1.line, 'F - test_undo_delete_text/selection:line')\n check_nil(Selection1.pos, 'F - test_undo_delete_text/selection:pos')\n--? check_eq(Selection1.line, 2, 'F - test_undo_delete_text/selection:line')\n--? check_eq(Selection1.pos, 4, 'F - test_undo_delete_text/selection:pos')\n"},{"Del":" y = Margin_top\n"},{"Del":" App.screen.check(y, 'abc', 'F - test_undo_delete_text/screen:1')\n"},{"Del":" y = y + Line_height\n"},{"Del":" App.screen.check(y, 'defg', 'F - test_undo_delete_text/screen:2')\n"},{"Del":" y = y + Line_height\n"},{"Del":" App.screen.check(y, 'xyz', 'F - test_undo_delete_text/screen:3')\n"},{"Del":"end\n\n"}]}},{"FileAdd":{"meta":{"basename":"select.lua","metadata":0},"context":[{"change":47,"pos":2}],"contents":[{"Add":"-- helpers for selecting portions of text"},{"Add":""},{"Add":"local utf8 = require 'utf8'"},{"Add":""},{"Add":"-- Return any intersection of the region from Selection1 to Cursor1 (or"},{"Add":"-- current mouse, if mouse is pressed; or recent mouse if mouse is pressed and"},{"Add":"-- currently over a drawing) with the region between {line=line_index, pos=apos}"},{"Add":"-- and {line=line_index, pos=bpos}."},{"Add":"-- apos must be less than bpos. However Selection1 and Cursor1 can be in any order."},{"Add":"-- Result: positions spos,epos between apos,bpos."},{"Add":"function Text.clip_selection(line_index, apos, bpos)"},{"Add":" if Selection1.line == nil then return nil,nil end"},{"Add":" -- min,max = sorted(Selection1,Cursor1)"},{"Add":" local minl,minp = Selection1.line,Selection1.pos"},{"Add":" local maxl,maxp"},{"Add":" if love.mouse.isDown('1') then"},{"Add":" maxl,maxp = Text.mouse_pos()"},{"Add":" else"},{"Add":" maxl,maxp = Cursor1.line,Cursor1.pos"},{"Add":" end"},{"Add":" if minl > maxl then"},{"Add":" minl,maxl = maxl,minl"},{"Add":" minp,maxp = maxp,minp"},{"Add":" elseif minl == maxl then"},{"Add":" if minp > maxp then"},{"Add":" minp,maxp = maxp,minp"},{"Add":" end"},{"Add":" end"},{"Add":" -- check if intervals are disjoint"},{"Add":" if line_index < minl then return nil,nil end"},{"Add":" if line_index > maxl then return nil,nil end"},{"Add":" if line_index == minl and bpos <= minp then return nil,nil end"},{"Add":" if line_index == maxl and apos >= maxp then return nil,nil end"},{"Add":" -- compare bounds more carefully (start inclusive, end exclusive)"},{"Add":" local a_ge = Text.le1({line=minl, pos=minp}, {line=line_index, pos=apos})"},{"Add":" local b_lt = Text.lt1({line=line_index, pos=bpos}, {line=maxl, pos=maxp})"},{"Add":"--? print(minl,line_index,maxl, '--', minp,apos,bpos,maxp, '--', a_ge,b_lt)"},{"Add":" if a_ge and b_lt then"},{"Add":" -- fully contained"},{"Add":" return apos,bpos"},{"Add":" elseif a_ge then"},{"Add":" assert(maxl == line_index)"},{"Add":" return apos,maxp"},{"Add":" elseif b_lt then"},{"Add":" assert(minl == line_index)"},{"Add":" return minp,bpos"},{"Add":" else"},{"Add":" assert(minl == maxl and minl == line_index)"},{"Add":" return minp,maxp"},{"Add":" end"},{"Add":"end"},{"Add":""},{"Add":"-- inefficient for some reason, so don't do it on every frame"},{"Add":"function Text.mouse_pos()"},{"Add":" local time = love.timer.getTime()"},{"Add":" if Recent_mouse.time and Recent_mouse.time > time-0.1 then"},{"Add":" return Recent_mouse.line, Recent_mouse.pos"},{"Add":" end"},{"Add":" Recent_mouse.time = time"},{"Add":" local line,pos = Text.to_pos(love.mouse.getX(), love.mouse.getY())"},{"Add":" if line then"},{"Add":" Recent_mouse.line = line"},{"Add":" Recent_mouse.pos = pos"},{"Add":" end"},{"Add":" return Recent_mouse.line, Recent_mouse.pos"},{"Add":"end"},{"Add":""},{"Add":"function Text.to_pos(x,y)"},{"Add":" for line_index,line in ipairs(Lines) do"},{"Add":" if line.mode == 'text' then"},{"Add":" if Text.in_line(line, x,y) then"},{"Add":" return line_index, Text.to_pos_on_line(line, x,y)"},{"Add":" end"},{"Add":" end"},{"Add":" end"},{"Add":"end"},{"Add":""},{"Add":"function Text.delete_selection()"},{"Add":" local minl,maxl = minmax(Selection1.line, Cursor1.line)"},{"Add":" local before = snapshot(minl, maxl)"},{"Add":" Text.delete_selection_without_undo()"},{"Add":" record_undo_event({before=before, after=snapshot(Cursor1.line)})"},{"Add":"end"},{"Add":""},{"Add":"function Text.delete_selection_without_undo()"},{"Add":" if Selection1.line == nil then return end"},{"Add":" -- min,max = sorted(Selection1,Cursor1)"},{"Add":" local minl,minp = Selection1.line,Selection1.pos"},{"Add":" local maxl,maxp = Cursor1.line,Cursor1.pos"},{"Add":" if minl > maxl then"},{"Add":" minl,maxl = maxl,minl"},{"Add":" minp,maxp = maxp,minp"},{"Add":" elseif minl == maxl then"},{"Add":" if minp > maxp then"},{"Add":" minp,maxp = maxp,minp"},{"Add":" end"},{"Add":" end"},{"Add":" -- update Cursor1 and Selection1"},{"Add":" Cursor1.line = minl"},{"Add":" Cursor1.pos = minp"},{"Add":" Selection1 = {}"},{"Add":" -- delete everything between min (inclusive) and max (exclusive)"},{"Add":" Lines[minl].fragments = nil"},{"Add":" Lines[minl].screen_line_starting_pos = nil"},{"Add":" local min_offset = utf8.offset(Lines[minl].data, minp)"},{"Add":" local max_offset = utf8.offset(Lines[maxl].data, maxp)"},{"Add":" if minl == maxl then"},{"Add":"--? print('minl == maxl')"},{"Add":" Lines[minl].data = Lines[minl].data:sub(1, min_offset-1)..Lines[minl].data:sub(max_offset)"},{"Add":" return"},{"Add":" end"},{"Add":" assert(minl < maxl)"},{"Add":" local rhs = Lines[maxl].data:sub(max_offset)"},{"Add":" for i=maxl,minl+1,-1 do"},{"Add":" table.remove(Lines, i)"},{"Add":" end"},{"Add":" Lines[minl].data = Lines[minl].data:sub(1, min_offset-1)..rhs"},{"Add":"end"},{"Add":""},{"Add":"function Text.selection()"},{"Add":" if Selection1.line == nil then return end"},{"Add":" -- min,max = sorted(Selection1,Cursor1)"},{"Add":" local minl,minp = Selection1.line,Selection1.pos"},{"Add":" local maxl,maxp = Cursor1.line,Cursor1.pos"},{"Add":" if minl > maxl then"},{"Add":" minl,maxl = maxl,minl"},{"Add":" minp,maxp = maxp,minp"},{"Add":" elseif minl == maxl then"},{"Add":" if minp > maxp then"},{"Add":" minp,maxp = maxp,minp"},{"Add":" end"},{"Add":" end"},{"Add":" local min_offset = utf8.offset(Lines[minl].data, minp)"},{"Add":" local max_offset = utf8.offset(Lines[maxl].data, maxp)"},{"Add":" if minl == maxl then"},{"Add":" return Lines[minl].data:sub(min_offset, max_offset-1)"},{"Add":" end"},{"Add":" assert(minl < maxl)"},{"Add":" local result = Lines[minl].data:sub(min_offset)..'\\n'"},{"Add":" for i=minl+1,maxl-1 do"},{"Add":" if Lines[i].mode == 'text' then"},{"Add":" result = result..Lines[i].data..'\\n'"},{"Add":" end"},{"Add":" end"},{"Add":" result = result..Lines[maxl].data:sub(1, max_offset-1)"},{"Add":" return result"},{"Add":"end"},{"Add":""},{"Add":"function Text.cut_selection()"},{"Add":" local result = Text.selection()"},{"Add":" Text.delete_selection()"},{"Add":" return result"},{"Add":"end"}]}},{"FileAdd":{"meta":{"basename":"search.lua","metadata":0},"context":[{"change":47,"pos":2}],"contents":[{"Add":"-- helpers for the search bar (C-f)"},{"Add":""},{"Add":"function Text.draw_search_bar()"},{"Add":" local h = Line_height+2"},{"Add":" local y = App.screen.height-h"},{"Add":" love.graphics.setColor(0.9,0.9,0.9)"},{"Add":" love.graphics.rectangle('fill', 0, y-10, App.screen.width-1, h+8)"},{"Add":" love.graphics.setColor(0.6,0.6,0.6)"},{"Add":" love.graphics.line(0, y-10, App.screen.width-1, y-10)"},{"Add":" love.graphics.setColor(1,1,1)"},{"Add":" love.graphics.rectangle('fill', 20, y-6, App.screen.width-40, h+2, 2,2)"},{"Add":" love.graphics.setColor(0.6,0.6,0.6)"},{"Add":" love.graphics.rectangle('line', 20, y-6, App.screen.width-40, h+2, 2,2)"},{"Add":" love.graphics.setColor(0,0,0)"},{"Add":" App.screen.print(Search_term, 25,y-5)"},{"Add":" love.graphics.setColor(1,0,0)"},{"Add":" if Search_text == nil then"},{"Add":" Search_text = App.newText(love.graphics.getFont(), Search_term)"},{"Add":" end"},{"Add":" love.graphics.circle('fill', 25+App.width(Search_text),y-5+h, 2)"},{"Add":" love.graphics.setColor(0,0,0)"},{"Add":"end"},{"Add":""},{"Add":"function Text.search_next()"},{"Add":" -- search current line"},{"Add":" local pos = Lines[Cursor1.line].data:find(Search_term, Cursor1.pos)"},{"Add":" if pos then"},{"Add":" Cursor1.pos = pos"},{"Add":" end"},{"Add":" if pos == nil then"},{"Add":" for i=Cursor1.line+1,#Lines do"},{"Add":" pos = Lines[i].data:find(Search_term)"},{"Add":" if pos then"},{"Add":" Cursor1.line = i"},{"Add":" Cursor1.pos = pos"},{"Add":" break"},{"Add":" end"},{"Add":" end"},{"Add":" end"},{"Add":" if pos == nil then"},{"Add":" -- wrap around"},{"Add":" for i=1,Cursor1.line-1 do"},{"Add":" pos = Lines[i].data:find(Search_term)"},{"Add":" if pos then"},{"Add":" Cursor1.line = i"},{"Add":" Cursor1.pos = pos"},{"Add":" break"},{"Add":" end"},{"Add":" end"},{"Add":" end"},{"Add":" if pos == nil then"},{"Add":" Cursor1.line = Search_backup.cursor.line"},{"Add":" Cursor1.pos = Search_backup.cursor.pos"},{"Add":" Screen_top1.line = Search_backup.screen_top.line"},{"Add":" Screen_top1.pos = Search_backup.screen_top.pos"},{"Add":" end"},{"Add":" if Text.lt1(Cursor1, Screen_top1) or Text.lt1(Screen_bottom1, Cursor1) then"},{"Add":" Screen_top1.line = Cursor1.line"},{"Add":" local _, pos = Text.pos_at_start_of_cursor_screen_line()"},{"Add":" Screen_top1.pos = pos"},{"Add":" end"},{"Add":"end"},{"Add":""},{"Add":"function Text.search_previous()"},{"Add":" -- search current line"},{"Add":" local pos = rfind(Lines[Cursor1.line].data, Search_term, Cursor1.pos)"},{"Add":" if pos then"},{"Add":" Cursor1.pos = pos"},{"Add":" end"},{"Add":" if pos == nil then"},{"Add":" for i=Cursor1.line-1,1,-1 do"},{"Add":" pos = rfind(Lines[i].data, Search_term)"},{"Add":" if pos then"},{"Add":" Cursor1.line = i"},{"Add":" Cursor1.pos = pos"},{"Add":" break"},{"Add":" end"},{"Add":" end"},{"Add":" end"},{"Add":" if pos == nil then"},{"Add":" -- wrap around"},{"Add":" for i=#Lines,Cursor1.line+1,-1 do"},{"Add":" pos = rfind(Lines[i].data, Search_term)"},{"Add":" if pos then"},{"Add":" Cursor1.line = i"},{"Add":" Cursor1.pos = pos"},{"Add":" break"},{"Add":" end"},{"Add":" end"},{"Add":" end"},{"Add":" if pos == nil then"},{"Add":" Cursor1.line = Search_backup.cursor.line"},{"Add":" Cursor1.pos = Search_backup.cursor.pos"},{"Add":" Screen_top1.line = Search_backup.screen_top.line"},{"Add":" Screen_top1.pos = Search_backup.screen_top.pos"},{"Add":" end"},{"Add":" if Text.lt1(Cursor1, Screen_top1) or Text.lt1(Screen_bottom1, Cursor1) then"},{"Add":" Screen_top1.line = Cursor1.line"},{"Add":" local _, pos = Text.pos_at_start_of_cursor_screen_line()"},{"Add":" Screen_top1.pos = pos"},{"Add":" end"},{"Add":"end"},{"Add":""},{"Add":"function rfind(s, pat, i)"},{"Add":" local rs = s:reverse()"},{"Add":" local rpat = pat:reverse()"},{"Add":" if i == nil then i = #s end"},{"Add":" local ri = #s - i + 1"},{"Add":" local rendpos = rs:find(rpat, ri)"},{"Add":" if rendpos == nil then return nil end"},{"Add":" local endpos = #s - rendpos + 1"},{"Add":" assert (endpos >= #pat)"},{"Add":" return endpos-#pat+1"},{"Add":"end"}]}}],"owner":"akkartik","repo":"sum-grid.love","token":"v/eblvPREwj/ZktT793oGj0OcahZ4Yh77SYa2TAX1OA=","login":null}

…

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