2022-02-05 07:57:05 +00:00
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# .tlv file generated by https://github.com/akkartik/teliva
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# You may edit it if you are careful; however, you may see cryptic errors if you
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# violate Teliva's assumptions.
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#
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# .tlv files are representations of Teliva programs. Teliva programs consist of
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# sequences of definitions. Each definition is a table of key/value pairs. Keys
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# and values are both strings.
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#
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# Lines in .tlv files always follow exactly one of the following forms:
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# - comment lines at the top of the file starting with '#' at column 0
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# - beginnings of definitions starting with '- ' at column 0, followed by a
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# key/value pair
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# - key/value pairs consisting of ' ' at column 0, containing either a
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# spaceless value on the same line, or a multi-line value
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# - multiline values indented by more than 2 spaces, starting with a '>'
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#
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# If these constraints are violated, Teliva may unceremoniously crash. Please
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# report bugs at http://akkartik.name/contact
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- __teliva_timestamp: original
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str_helpers:
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>-- some string helpers from http://lua-users.org/wiki/StringIndexing
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>
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>-- index characters using []
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>getmetatable('').__index = function(str,i)
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> if type(i) == 'number' then
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> return string.sub(str,i,i)
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> else
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> return string[i]
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> end
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>end
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>
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>-- ranges using (), selected bytes using {}
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>getmetatable('').__call = function(str,i,j)
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> if type(i)~='table' then
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> return string.sub(str,i,j)
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> else
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> local t={}
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> for k,v in ipairs(i) do
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> t[k]=string.sub(str,v,v)
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> end
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> return table.concat(t)
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> end
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>end
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>
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>-- iterate over an ordered sequence
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>function q(x)
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> if type(x) == 'string' then
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> return x:gmatch('.')
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> else
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> return ipairs(x)
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> end
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>end
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>
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>-- insert within string
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>function string.insert(str1, str2, pos)
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> return str1:sub(1,pos)..str2..str1:sub(pos+1)
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>end
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>
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>function string.remove(s, pos)
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> return s:sub(1,pos-1)..s:sub(pos+1)
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>end
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>
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>-- TODO: backport utf-8 support from Lua 5.3
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- __teliva_timestamp: original
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debugy:
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>debugy = 5
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- __teliva_timestamp: original
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dbg:
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>-- helper for debug by print; overlay debug information towards the right
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>-- reset debugy every time you refresh screen
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>function dbg(window, s)
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> local oldy = 0
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> local oldx = 0
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> oldy, oldx = window:getyx()
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> window:mvaddstr(debugy, 60, s)
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> debugy = debugy+1
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> window:mvaddstr(oldy, oldx, '')
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>end
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- __teliva_timestamp: original
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check_eq:
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>function check_eq(x, expected, msg)
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> if x == expected then
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> curses.addch('.')
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> else
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> print('F - '..msg)
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> print(' expected '..tostring(expected)..' but got '..x)
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> teliva_num_test_failures = teliva_num_test_failures + 1
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> -- overlay first test failure on editors
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> if teliva_first_failure == nil then
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> teliva_first_failure = msg
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> end
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> end
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>end
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- __teliva_timestamp: original
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map:
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>-- only for arrays
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>function map(l, f)
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> result = {}
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> for _, x in ipairs(l) do
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> table.insert(result, f(x))
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> end
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> return result
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>end
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- __teliva_timestamp: original
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reduce:
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>-- only for arrays
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>function reduce(l, f, init)
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> result = init
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> for _, x in ipairs(l) do
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> result = f(result, x)
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> end
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> return result
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>end
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- __teliva_timestamp: original
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filter:
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>-- only for arrays
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>function filter(l, f)
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> result = {}
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> for _, x in ipairs(l) do
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> if f(x) then
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> table.insert(result, x)
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> end
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> end
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> return result
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>end
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- __teliva_timestamp: original
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find_index:
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>function find_index(arr, x)
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> for n, y in ipairs(arr) do
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> if x == y then
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> return n
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> end
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> end
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>end
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- __teliva_timestamp: original
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trim:
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>function trim(s)
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> return s:gsub('^%s*', ''):gsub('%s*$', '')
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>end
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- __teliva_timestamp: original
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split:
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>function split(s, d)
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> result = {}
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> for match in (s..d):gmatch("(.-)"..d) do
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> table.insert(result, match);
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> end
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> return result
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>end
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- __teliva_timestamp: original
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spaces:
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>function spaces(n)
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> for i=1,n do
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> curses.addch(' ')
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> end
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>end
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- __teliva_timestamp: original
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window:
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>window = curses.stdscr()
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- __teliva_timestamp: original
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menu:
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>-- To show app-specific hotkeys in the menu bar, add hotkey/command
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>-- arrays of strings to the menu array.
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>menu = {}
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- __teliva_timestamp: original
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update:
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>function update(window)
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> local key = curses.getch()
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> -- process key here
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>end
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- __teliva_timestamp: original
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init_colors:
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>function init_colors()
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> -- light background
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2022-02-08 07:17:03 +00:00
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> curses.init_pair(view_settings.current_zettel_bg, 236, 230)
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2022-02-05 07:57:05 +00:00
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> curses.init_pair(1, 236, 250)
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> curses.init_pair(2, 236, 252)
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> -- dark background
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2022-02-08 07:17:03 +00:00
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>--? curses.init_pair(view_settings.current_zettel_bg, 252, 130)
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2022-02-05 07:57:05 +00:00
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>--? curses.init_pair(1, 252, 240)
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>--? curses.init_pair(2, 252, 242)
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>end
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- __teliva_timestamp: original
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main:
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>function main()
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> init_colors()
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2022-02-08 07:17:03 +00:00
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> current_zettel_id = zettels.root
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2022-02-05 07:57:05 +00:00
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>
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> while true do
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> render(window)
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> update(window)
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> end
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>end
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- __teliva_timestamp: original
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depth:
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>function depth(zettel)
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> local result = 0
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> while zettel.parent do
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> result = result+1
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2022-02-08 07:17:03 +00:00
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> zettel = zettel.parent
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2022-02-05 07:57:05 +00:00
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> end
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2022-02-08 07:17:03 +00:00
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> return result
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2022-02-05 07:57:05 +00:00
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>end
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2022-02-08 07:17:03 +00:00
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- __teliva_timestamp: original
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render_zettel:
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>function render_zettel(window, bg, indent, starty, startx, zettel)
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> window:attrset(curses.color_pair(bg))
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> for y=0,view_settings.height-1 do
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> for x=0,view_settings.width-1 do
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> window:mvaddch(y+starty, x+startx, ' ')
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2022-02-05 07:57:05 +00:00
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> end
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> end
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2022-02-08 07:17:03 +00:00
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> local y, x = 0, indent+1
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> for i=1,#zettel.data do
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> local c = zettel.data[i]
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> if c == '\n' then
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> y = y+1
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> x = indent+1
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> else
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> window:mvaddch(y+starty, x+startx, c)
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> x = x+1
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> if x >= startx + view_settings.width then
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> y = y+1
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> x = indent+1
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> end
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2022-02-05 07:57:05 +00:00
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> end
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2022-02-08 07:17:03 +00:00
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> if y >= starty + view_settings.height then
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> break
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2022-02-05 07:57:05 +00:00
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> end
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> end
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>end
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2022-02-08 07:17:03 +00:00
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- __teliva_timestamp: original
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current_zettel_id:
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>current_zettel_id = ''
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- __teliva_timestamp: original
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view_settings:
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>view_settings = {
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> -- dimensions for rendering a single zettel; extra text gets truncated
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> width=50,
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> height=3,
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> -- spacing between zettels
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> hmargin=1,
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> vmargin=1,
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> --
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> indent=2, -- how children of a zettel are indicated
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> current_zettel_bg=3, -- color pair index initialized in init_colors
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>}
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- __teliva_timestamp: original
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zettels:
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>zettels = {
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> root="a",
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> a={
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> data="abc\ndef",
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> child="c",
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> next="b",
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> },
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> b={
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> data="ghi\njklm",
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> prev="a",
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> },
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> c={
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> data="c",
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> parent="a",
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> next="d",
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> },
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> d={
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> data="d",
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> parent="a",
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> prev="c",
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> }
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>}
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- __teliva_timestamp: original
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render_state:
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>-- some information about what's been drawn on screen
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>render_state = {
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> -- where the current zettel is, in units of zettels
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> curr_h = 1,
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> curr_w = 1,
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> -- what zettel is at each position on screen, in units of zettels
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> hw2id = {},
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>}
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- __teliva_timestamp: original
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update:
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2022-02-05 07:57:05 +00:00
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>function update(window)
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> local key = curses.getch()
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> local curr = zettels[current_zettel_id]
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> -- graph-based navigation
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> if key == string.byte('j') then
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> if curr.child then
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> current_zettel_id = curr.child
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> elseif curr.next then
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> current_zettel_id = curr.next
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> elseif curr.parent and zettels[curr.parent].next then
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> current_zettel_id = zettels[curr.parent].next
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> end
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> elseif key == string.byte('k') then
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> if curr.parent then current_zettel_id = curr.parent end
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> elseif key == string.byte('h') then
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> if curr.prev then
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> current_zettel_id = curr.prev
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> elseif curr.parent then
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> current_zettel_id = curr.parent
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> end
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> elseif key == string.byte('l') then
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> if curr.next then
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> current_zettel_id = curr.next
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> elseif curr.parent and zettels[curr.parent].next then
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> current_zettel_id = zettels[curr.parent].next
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> end
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> -- screen-based navigation
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> elseif key == curses.KEY_UP then
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> if render_state.curr_h > 1 then
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> current_zettel_id = render_state.wh2id[render_state.curr_w][render_state.curr_h - 1]
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> end
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> elseif key == curses.KEY_DOWN then
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> if render_state.wh2id[render_state.curr_w][render_state.curr_h + 1] then
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> current_zettel_id = render_state.wh2id[render_state.curr_w][render_state.curr_h + 1]
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> end
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> elseif key == curses.KEY_LEFT then
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> if render_state.curr_w > 1 then
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> current_zettel_id = render_state.wh2id[render_state.curr_w - 1][render_state.curr_h]
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> end
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> elseif key == curses.KEY_RIGHT then
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> if render_state.wh2id[render_state.curr_w + 1] and render_state.wh2id[render_state.curr_w + 1][render_state.curr_h] then
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> current_zettel_id = render_state.wh2id[render_state.curr_w + 1][render_state.curr_h]
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> end
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> end
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>end
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2022-02-08 07:17:03 +00:00
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- __teliva_timestamp: original
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render:
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2022-02-05 07:57:05 +00:00
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>function render(window)
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> window:clear()
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> local lines, cols = window:getmaxyx()
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> local bg=1
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> local y, x = 0, 0 -- units of characters (0-based)
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> local w, h = 1, 1 -- units of zettels (1-based)
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> -- render zettels depth-first, while tracking relative positions
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> local done = {}
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> local inprogress = {zettels.root}
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> render_state.wh2id = {{}}
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> while #inprogress > 0 do
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> local currid = table.remove(inprogress)
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> if not done[currid] then
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> done[currid] = true
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> table.insert(render_state.wh2id[w], currid)
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> local zettel = zettels[currid]
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> if currid == current_zettel_id then
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> render_state.curr_w = w
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> render_state.curr_h = h
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> end
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> local currbg = (currid == current_zettel_id) and view_settings.current_zettel_bg or bg
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> render_zettel(window, currbg, depth(zettel) * view_settings.indent, y, x, zettel)
|
|
|
|
> if zettel.next then table.insert(inprogress, zettel.next) end
|
|
|
|
> if zettel.child then table.insert(inprogress, zettel.child) end
|
|
|
|
> bg = 3 - bg -- toggle between color pairs 1 and 2
|
|
|
|
> y = y + view_settings.height + view_settings.vmargin
|
|
|
|
> h = h + 1
|
|
|
|
> if y + view_settings.height > lines then
|
|
|
|
> y = 0
|
|
|
|
> h = 1
|
|
|
|
> x = x + view_settings.width + view_settings.hmargin
|
|
|
|
> w = w + 1
|
|
|
|
> if x + view_settings.width > cols then break end
|
|
|
|
> table.insert(render_state.wh2id, {})
|
|
|
|
> end
|
|
|
|
> end
|
|
|
|
> end
|
|
|
|
> window:mvaddstr(lines-2, 0, '')
|
|
|
|
> for i=1,3 do
|
|
|
|
> window:attrset(curses.color_pair(i%2+1))
|
|
|
|
> window:addstr('')
|
|
|
|
> spaces(view_settings.width-string.len(''))
|
|
|
|
> window:attrset(curses.color_pair(0))
|
|
|
|
> window:addstr(' ') -- margin
|
|
|
|
> end
|
|
|
|
> window:mvaddstr(lines-1, 0, '? ')
|
|
|
|
> curses.refresh()
|
|
|
|
>end
|
2022-02-08 07:17:03 +00:00
|
|
|
- __teliva_timestamp: original
|
2022-02-05 07:57:05 +00:00
|
|
|
view_settings:
|
|
|
|
>view_settings = {
|
|
|
|
> -- dimensions for rendering a single zettel; extra text gets truncated
|
|
|
|
> width=50,
|
|
|
|
> height=3,
|
|
|
|
> -- spacing between zettels
|
|
|
|
> hmargin=1,
|
|
|
|
> vmargin=1,
|
|
|
|
> --
|
|
|
|
> indent=2, -- how children of a zettel are indicated
|
|
|
|
> current_zettel_bg=3, -- color pair index initialized in init_colors
|
|
|
|
>}
|