Fork of Lua 5.1 to encourage end-user programming
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# .tlv file generated by https://github.com/akkartik/teliva
# You may edit it if you are careful; however, you may see cryptic errors if you
# violate Teliva's assumptions.
#
# .tlv files are representations of Teliva programs. Teliva programs consist of
# sequences of definitions. Each definition is a table of key/value pairs. Keys
# and values are both strings.
#
# Lines in .tlv files always follow exactly one of the following forms:
# - comment lines at the top of the file starting with '#' at column 0
# - beginnings of definitions starting with '- ' at column 0, followed by a
# key/value pair
# - key/value pairs consisting of ' ' at column 0, containing either a
# spaceless value on the same line, or a multi-line value
# - multiline values indented by more than 2 spaces, starting with a '>'
#
# If these constraints are violated, Teliva may unceremoniously crash. Please
# report bugs at http://akkartik.name/contact
- __teliva_timestamp: original
str_helpers:
>-- some string helpers from http://lua-users.org/wiki/StringIndexing
>
>-- index characters using []
>getmetatable('').__index = function(str,i)
> if type(i) == 'number' then
> return str:sub(i,i)
> else
> return string[i]
> end
>end
>
>-- ranges using (), selected bytes using {}
>getmetatable('').__call = function(str,i,j)
> if type(i)~='table' then
> return str:sub(i,j)
> else
> local t={}
> for k,v in ipairs(i) do
> t[k]=str:sub(v,v)
> end
> return table.concat(t)
> end
>end
>
>-- iterate over an ordered sequence
>function q(x)
> if type(x) == 'string' then
> return x:gmatch('.')
> else
> return ipairs(x)
> end
>end
>
>-- insert within string
>function string.insert(str1, str2, pos)
> return str1:sub(1,pos)..str2..str1:sub(pos+1)
>end
>
>function string.remove(s, pos)
> return s:sub(1,pos-1)..s:sub(pos+1)
>end
>
>function string.pos(s, sub)
> return string.find(s, sub, 1, true) -- plain=true to disable regular expressions
>end
>
>-- TODO: backport utf-8 support from Lua 5.3
- __teliva_timestamp: original
debugy:
>debugy = 5
- __teliva_timestamp: original
dbg:
>-- helper for debug by print; overlay debug information towards the right
>-- reset debugy every time you refresh screen
>function dbg(window, s)
> local oldy = 0
> local oldx = 0
> oldy, oldx = window:getyx()
> window:mvaddstr(debugy, 60, s)
> debugy = debugy+1
> window:mvaddstr(oldy, oldx, '')
>end
- __teliva_timestamp: original
check:
>function check(x, msg)
> if x then
> Window:addch('.')
> else
> print('F - '..msg)
> print(' '..str(x)..' is false/nil')
> teliva_num_test_failures = teliva_num_test_failures + 1
> -- overlay first test failure on editors
> if teliva_first_failure == nil then
> teliva_first_failure = msg
> end
> end
>end
- __teliva_timestamp: original
check_eq:
>function check_eq(x, expected, msg)
> if eq(x, expected) then
> Window:addch('.')
> else
> print('F - '..msg)
> print(' expected '..str(expected)..' but got '..str(x))
> teliva_num_test_failures = teliva_num_test_failures + 1
> -- overlay first test failure on editors
> if teliva_first_failure == nil then
> teliva_first_failure = msg
> end
> end
>end
- __teliva_timestamp: original
eq:
>function eq(a, b)
> if type(a) ~= type(b) then return false end
> if type(a) == 'table' then
> if #a ~= #b then return false end
> for k, v in pairs(a) do
> if b[k] ~= v then
> return false
> end
> end
> for k, v in pairs(b) do
> if a[k] ~= v then
> return false
> end
> end
> return true
> end
> return a == b
>end
- __teliva_timestamp: original
str:
>-- smarter tostring
>-- slow; used only for debugging
>function str(x)
> if type(x) == 'table' then
> local result = ''
> result = result..#x..'{'
> for k, v in pairs(x) do
> result = result..str(k)..'='..str(v)..', '
> end
> result = result..'}'
> return result
> elseif type(x) == 'string' then
> return '"'..x..'"'
> end
> return tostring(x)
>end
- __teliva_timestamp: original
find_index:
>function find_index(arr, x)
> for n, y in ipairs(arr) do
> if x == y then
> return n
> end
> end
>end
- __teliva_timestamp: original
trim:
>function trim(s)
> return s:gsub('^%s*', ''):gsub('%s*$', '')
>end
- __teliva_timestamp: original
split:
>function split(s, d)
> result = {}
> for match in (s..d):gmatch("(.-)"..d) do
> table.insert(result, match);
> end
> return result
>end
- __teliva_timestamp: original
map:
>-- only for arrays
>function map(l, f)
> result = {}
> for _, x in ipairs(l) do
> table.insert(result, f(x))
> end
> return result
>end
- __teliva_timestamp: original
reduce:
>-- only for arrays
>function reduce(l, f, init)
> result = init
> for _, x in ipairs(l) do
> result = f(result, x)
> end
> return result
>end
- __teliva_timestamp: original
filter:
>function filter(h, f)
> result = {}
> for k, v in pairs(h) do
> if f(k, v) then
> result[k] = v
> end
> end
> return result
>end
- __teliva_timestamp: original
ifilter:
>-- only for arrays
>function ifilter(l, f)
> result = {}
> for _, x in ipairs(l) do
> if f(x) then
> table.insert(result, x)
> end
> end
> return result
>end
- __teliva_timestamp: original
sort_letters:
>function sort_letters(s)
> tmp = {}
> for i=1,#s do
> table.insert(tmp, s[i])
> end
> table.sort(tmp)
> local result = ''
> for _, c in pairs(tmp) do
> result = result..c
> end
> return result
>end
>
>function test_sort_letters(s)
> check_eq(sort_letters(''), '', 'test_sort_letters: empty')
> check_eq(sort_letters('ba'), 'ab', 'test_sort_letters: non-empty')
> check_eq(sort_letters('abba'), 'aabb', 'test_sort_letters: duplicates')
>end
- __teliva_timestamp: original
count_letters:
>-- TODO: handle unicode
>function count_letters(s)
> local result = {}
> for i=1,s:len() do
> local c = s[i]
> if result[c] == nil then
> result[c] = 1
> else
> result[c] = result[c] + 1
> end
> end
> return result
>end
- __teliva_timestamp: original
count:
>-- turn an array of elements into a map from elements to their frequency
>-- analogous to count_letters for non-strings
>function count(a)
> local result = {}
> for i, v in ipairs(a) do
> if result[v] == nil then
> result[v] = 1
> else
> result[v] = result[v] + 1
> end
> end
> return result
>end
- __teliva_timestamp: original
union:
>function union(a, b)
> for k, v in pairs(b) do
> a[k] = v
> end
> return a
>end
- __teliva_timestamp: original
subtract:
>-- set subtraction
>function subtract(a, b)
> for k, v in pairs(b) do
> a[k] = nil
> end
> return a
>end
- __teliva_timestamp: original
all:
>-- universal quantifier on sets
>function all(s, f)
> for k, v in pairs(s) do
> if not f(k, v) then
> return false
> end
> end
> return true
>end
- __teliva_timestamp: original
to_array:
>-- turn a set into an array
>-- drops values
>function to_array(h)
> local result = {}
> for k, _ in pairs(h) do
> table.insert(result, k)
> end
> return result
>end
- __teliva_timestamp: original
append:
>-- concatenate list 'elems' into 'l', modifying 'l' in the process
>function append(l, elems)
> for i=1,#elems do
> table.insert(l, elems[i])
> end
>end
- __teliva_timestamp: original
prepend:
>-- concatenate list 'elems' into the start of 'l', modifying 'l' in the process
>function prepend(l, elems)
> for i=1,#elems do
> table.insert(l, i, elems[i])
> end
>end
- __teliva_timestamp: original
all_but:
>function all_but(x, idx)
> if type(x) == 'table' then
> local result = {}
> for i, elem in ipairs(x) do
> if i ~= idx then
> table.insert(result,elem)
> end
> end
> return result
> elseif type(x) == 'string' then
> if idx < 1 then return x:sub(1) end
> return x:sub(1, idx-1) .. x:sub(idx+1)
> else
> error('all_but: unsupported type '..type(x))
> end
>end
>
>function test_all_but()
> check_eq(all_but('', 0), '', 'all_but: empty')
> check_eq(all_but('abc', 0), 'abc', 'all_but: invalid low index')
> check_eq(all_but('abc', 4), 'abc', 'all_but: invalid high index')
> check_eq(all_but('abc', 1), 'bc', 'all_but: first index')
> check_eq(all_but('abc', 3), 'ab', 'all_but: final index')
> check_eq(all_but('abc', 2), 'ac', 'all_but: middle index')
>end
- __teliva_timestamp: original
set:
>function set(l)
> local result = {}
> for i, elem in ipairs(l) do
> result[elem] = true
> end
> return result
>end
- __teliva_timestamp: original
set_eq:
>function set_eq(l1, l2)
> return eq(set(l1), set(l2))
>end
>
>function test_set_eq()
> check(set_eq({1}, {1}), 'set_eq: identical')
> check(not set_eq({1, 2}, {1, 3}), 'set_eq: different')
> check(set_eq({1, 2}, {2, 1}), 'set_eq: order')
> check(set_eq({1, 2, 2}, {2, 1}), 'set_eq: duplicates')
>end
- __teliva_timestamp: original
clear:
>function clear(lines)
> while #lines > 0 do
> table.remove(lines)
> end
>end
- __teliva_timestamp: original
zap:
>function zap(target, src)
> clear(target)
> append(target, src)
>end
- __teliva_timestamp: original
mfactorial:
>-- memoized version of factorial
>-- doesn't memoize recursive calls, but may be good enough
>mfactorial = memo1(factorial)
- __teliva_timestamp: original
factorial:
>function factorial(n)
> local result = 1
> for i=1,n do
> result = result*i
> end
> return result
>end
- __teliva_timestamp: original
memo1:
>-- a higher-order function that takes a function of a single arg
>-- (that never returns nil)
>-- and returns a memoized version of it
>function memo1(f)
> local memo = {}
> return function(x)
> if memo[x] == nil then
> memo[x] = f(x)
> end
> return memo[x]
> end
>end
>
>-- mfactorial doesn't seem noticeably faster
>function test_memo1()
> for i=0,30 do
> check_eq(mfactorial(i), factorial(i), 'memo1 over factorial: '..str(i))
> end
>end
- __teliva_timestamp: original
num_permutations:
>-- number of permutations of n distinct objects, taken r at a time
>function num_permutations(n, r)
> return factorial(n)/factorial(n-r)
>end
>
>-- mfactorial doesn't seem noticeably faster
>function test_memo1()
> for i=0,30 do
> for j=0,i do
> check_eq(num_permutations(i, j), mfactorial(i)/mfactorial(i-j), 'num_permutations memoizes: '..str(i)..'P'..str(j))
> end
> end
>end
- __teliva_timestamp: original
menu:
>-- To show app-specific hotkeys in the menu bar, add hotkey/command
>-- arrays of strings to the menu array.
>menu = {}
- __teliva_timestamp: original
Window:
>Window = curses.stdscr()
- __teliva_timestamp: original
window:
>-- constructor for fake screen and window
>-- call it like this:
>-- local w = window{
>-- kbd=kbd('abc'),
>-- scr=scr{h=5, w=4},
>-- }
>-- eventually it'll do everything a real ncurses window can
>function window(h)
> h.__index = h
> setmetatable(h, h)
> h.__index = function(table, key)
> return rawget(h, key)
> end
> h.attrset = function(self, x)
> self.scr.attrs = x
> end
> h.attron = function(self, x)
> -- currently same as attrset since Lua 5.1 doesn't have bitwise operators
> -- doesn't support multiple attrs at once
>-- local old = self.scr.attrs
>-- self.scr.attrs = old|x
> self.scr.attrs = x
> end
> h.attroff = function(self, x)
> -- currently borked since Lua 5.1 doesn't have bitwise operators
> -- doesn't support multiple attrs at once
>-- local old = self.scr.attrs
>-- self.scr.attrs = old & (~x)
> self.scr.attrs = curses.A_NORMAL
> end
> h.getch = function(self)
> local c = table.remove(h.kbd, 1)
> if c == nil then return c end
> return string.byte(c) -- for verisimilitude with ncurses
> end
> h.addch = function(self, c)
> local scr = self.scr
> if c == '\n' then
> scr.cursy = scr.cursy+1
> scr.cursx = 0
> return
> end
> if scr.cursy <= scr.h then
> scr[scr.cursy][scr.cursx] = {data=c, attrs=scr.attrs}
> scr.cursx = scr.cursx+1
> if scr.cursx > scr.w then
> scr.cursy = scr.cursy+1
> scr.cursx = 1
> end
> end
> end
> h.addstr = function(self, s)
> for i=1,s:len() do
> self:addch(s[i])
> end
> end
> h.mvaddch = function(self, y, x, c)
> self.scr.cursy = y
> self.scr.cursx = x
> self:addch(c)
> end
> h.mvaddstr = function(self, y, x, s)
> self.scr.cursy = y
> self.scr.cursx = x
> self:addstr(s)
> end
> h.clear = function(self)
> clear_scr(self.scr)
> end
> h.refresh = function(self)
> -- nothing
> end
> return h
>end
- __teliva_timestamp: original
kbd:
>function kbd(keys)
> local result = {}
> for i=1,keys:len() do
> table.insert(result, keys[i])
> end
> return result
>end
- __teliva_timestamp: original
scr:
>function scr(props)
> props.cursx = 1
> props.cursy = 1
> clear_scr(props)
> return props
>end
- __teliva_timestamp: original
clear_scr:
>function clear_scr(props)
> props.cursy = 1
> props.cursx = 1
> for y=1,props.h do
> props[y] = {}
> for x=1,props.w do
> props[y][x] = {data=' ', attrs=curses.A_NORMAL}
> end
> end
> return props
>end
- __teliva_timestamp: original
check_screen:
>function check_screen(window, contents, message)
> local x, y = 1, 1
> for i=1,contents:len() do
> check_eq(window.scr[y][x].data, contents[i], message..'/'..y..','..x)
> x = x+1
> if x > window.scr.w then
> y = y+1
> x = 1
> end
> end
>end
>
>-- putting it all together, an example test of both keyboard and screen
>function test_check_screen()
> local lines = {
> c='123',
> d='234',
> a='345',
> b='456',
> }
> local w = window{
> kbd=kbd('abc'),
> scr=scr{h=3, w=5},
> }
> local y = 1
> while true do
> local b = w:getch()
> if b == nil then break end
> w:mvaddstr(y, 1, lines[string.char(b)])
> y = y+1
> end
> check_screen(w, '345 '..
> '456 '..
> '123 ',
> 'test_check_screen')
>end
- __teliva_timestamp: original
check_reverse:
>function check_reverse(window, contents, message)
> local x, y = 1, 1
> for i=1,contents:len() do
> if contents[i] ~= ' ' then
> -- hacky version while we're without bitwise operators on Lua 5.1
>-- check(window.scr[y][x].attrs & curses.A_REVERSE, message..'/'..y..','..x)
> check_eq(window.scr[y][x].attrs, curses.A_REVERSE, message..'/'..y..','..x)
> else
> -- hacky version while we're without bitwise operators on Lua 5.1
>-- check(window.scr[y][x].attrs & (~curses.A_REVERSE), message..'/'..y..','..x)
> check(window.scr[y][x].attrs ~= curses.A_REVERSE, message..'/'..y..','..x)
> end
> x = x+1
> if x > window.scr.w then
> y = y+1
> x = 1
> end
> end
>end
- __teliva_timestamp: original
check_bold:
>function check_bold(window, contents, message)
> local x, y = 1, 1
> for i=1,contents:len() do
> if contents[i] ~= ' ' then
> -- hacky version while we're without bitwise operators on Lua 5.1
>-- check(window.scr[y][x].attrs & curses.A_BOLD, message..'/'..y..','..x)
> check_eq(window.scr[y][x].attrs, curses.A_BOLD, message..'/'..y..','..x)
> else
> -- hacky version while we're without bitwise operators on Lua 5.1
>-- check(window.scr[y][x].attrs & (~curses.A_BOLD), message..'/'..y..','..x)
> check(window.scr[y][x].attrs ~= curses.A_BOLD, message..'/'..y..','..x)
> end
> x = x+1
> if x > window.scr.w then
> y = y+1
> x = 1
> end
> end
>end
- __teliva_timestamp: original
check_color:
>-- check which parts of a screen have the given color_pair
>function check_color(window, cp, contents, message)
> local x, y = 1, 1
> for i=1,contents:len() do
> if contents[i] ~= ' ' then
> -- hacky version while we're without bitwise operators on Lua 5.1
>-- check(window.scr[y][x].attrs & curses.color_pair(cp), message..'/'..y..','..x)
> check_eq(window.scr[y][x].attrs, curses.color_pair(cp), message..'/'..y..','..x)
> else
> -- hacky version while we're without bitwise operators on Lua 5.1
>-- check(window.scr[y][x].attrs & (~curses.A_BOLD), message..'/'..y..','..x)
> check(window.scr[y][x].attrs ~= curses.color_pair(cp), message..'/'..y..','..x)
> end
> x = x+1
> if x > window.scr.w then
> y = y+1
> x = 1
> end
> end
>end
- __teliva_timestamp: original
sep:
>-- horizontal separator
>function sep(window)
> local y, _ = window:getyx()
> window:mvaddstr(y+1, 0, '')
> local _, cols = window:getmaxyx()
> for col=1,cols do
> window:addstr('_')
> end
>end
- __teliva_timestamp: original
render:
>function render(window)
> window:clear()
> -- draw stuff to screen here
> window:attron(curses.A_BOLD)
> window:mvaddstr(1, 5, "example app")
> window:attrset(curses.A_NORMAL)
> for i=0,15 do
> window:attrset(curses.color_pair(i))
> window:mvaddstr(3+i, 5, "========================")
> end
> window:refresh()
>end
- __teliva_timestamp: original
update:
>function update(window)
> local key = window:getch()
> -- process key here
>end
- __teliva_timestamp: original
init_colors:
>function init_colors()
> for i=0,7 do
> curses.init_pair(i, i, -1)
> end
> curses.init_pair(8, 7, 0)
> curses.init_pair(9, 7, 1)
> curses.init_pair(10, 7, 2)
> curses.init_pair(11, 7, 3)
> curses.init_pair(12, 7, 4)
> curses.init_pair(13, 7, 5)
> curses.init_pair(14, 7, 6)
> curses.init_pair(15, -1, 15)
>end
- __teliva_timestamp: original
main:
>function main()
> init_colors()
>
> while true do
> render(Window)
> update(Window)
> end
>end
- __teliva_timestamp: original
doc:blurb:
>To show a brief description of the app on the 'big picture' screen, put the text in a special buffer called 'doc:blurb'.
>
>You can also override the default big picture screen entirely by creating a buffer called 'doc:main'.
- __teliva_timestamp:
>Mon Apr 11 21:47:50 2022
main:
>function main()
> init_colors()
> read_feeds()
>
> while true do
> render(Window)
> update(Window)
> end
>end
- __teliva_timestamp:
>Mon Apr 11 21:49:18 2022
read_feeds:
>function read_feeds()
> local f = start_reading('feeds')
> while true
> local line = f.read()
> if line == nil then break end
> end
>end
- __teliva_timestamp:
>Mon Apr 11 21:52:26 2022
read_feeds:
>function read_feeds()
> local f = start_reading('feeds')
> Feeds = {}
> while true
> local feed = f.read()
> if feed == nil then break end
> table.insert(Feeds, feed)
> end
>end
- __teliva_timestamp:
>Mon Apr 11 21:52:33 2022
Feeds:
>Feeds = {}
- __teliva_timestamp:
>Mon Apr 11 21:52:59 2022
render:
>function render(window)
> window:clear()
> -- draw stuff to screen here
> for i, feed in ipairs(Feeds) do
> print(feed)
> end
> window:refresh()
>end
- __teliva_timestamp:
>Mon Apr 11 21:53:11 2022
read_feeds:
>function read_feeds()
> local f = start_reading('feeds')
> Feeds = {}
> while true do
> local feed = f.read()
> if feed == nil then break end
> table.insert(Feeds, feed)
> end
>end
- __teliva_timestamp:
>Mon Apr 11 21:53:22 2022
read_feeds:
>function read_feeds()
> local f = start_reading(nil, 'feeds')
> Feeds = {}
> while true do
> local feed = f.read()
> if feed == nil then break end
> table.insert(Feeds, feed)
> end
>end
- __teliva_timestamp:
>Mon Apr 11 21:53:39 2022
read_feeds:
>function read_feeds()
> local f = start_reading(nil, 'feeds')
> if f == nil then return end
> Feeds = {}
> while true do
> local feed = f.read()
> if feed == nil then break end
> table.insert(Feeds, feed)
> end
>end
- __teliva_timestamp:
>Fri Apr 22 22:39:15 2022
menu:
>-- To show app-specific hotkeys in the menu bar, add hotkey/command
>-- arrays of strings to the menu array.
>menu = {
> {'^r', 'refresh all feeds'},
>}
- __teliva_timestamp:
>Fri Apr 22 22:39:45 2022
update:
>function update(window)
> local key = window:getch()
> if key == 18 then -- ctrl-r
> print('aaa')
> window:getch()
> end
>end
- __teliva_timestamp:
>Fri Apr 22 22:40:02 2022
update:
>function update(window)
> local key = window:getch()
> if key == 18 then -- ctrl-r
> download_feeds()
> end
>end
- __teliva_timestamp:
>Fri Apr 22 22:40:27 2022
update:
>function update(window)
> local key = window:getch()
> if key == 18 then -- ctrl-r
> reload_feeds()
> end
>end
- __teliva_timestamp:
>Fri Apr 22 22:40:37 2022
menu:
>-- To show app-specific hotkeys in the menu bar, add hotkey/command
>-- arrays of strings to the menu array.
>menu = {
> {'^r', 'reload feeds'},
>}
- __teliva_timestamp:
>Fri Apr 22 22:41:00 2022
reload_feeds:
>function reload_feeds()
> print('aaa')
> Window:getch()
>end
- __teliva_timestamp:
>Fri Apr 22 22:41:37 2022
reload_feeds:
>function reload_feeds()
> for _, feed in ipairs(Feeds) do
> print(feed)
> end
> Window:getch()
>end
- __teliva_timestamp:
>Fri Apr 22 22:43:36 2022
reload_feeds:
>function reload_feeds()
> for _, feed in ipairs(Feeds) do
> local response, status, headers = http.request(feed)
> Window:clear()
> print(response)
> Window:getch()
> end
>end
- __teliva_timestamp:
>Fri Apr 22 22:55:25 2022
Items:
>Items = {}
- __teliva_timestamp:
>Fri Apr 22 22:57:54 2022
reload_feeds:
>function reload_feeds()
> for _, feed in ipairs(Feeds) do
> local response, status, headers = http.request(feed)
> print(type(status))
>--? parse_items(response)
> Window:clear()
> print(response)
>--? print(feed, #Items)
> Window:getch()
> end
>end
- __teliva_timestamp:
>Fri Apr 22 22:58:15 2022
reload_feeds:
>function reload_feeds()
> for _, feed in ipairs(Feeds) do
> local response, status, headers = http.request(feed)
> Window:clear()
> print(type(status))
>--? parse_items(response)
> print(response)
>--? print(feed, #Items)
> Window:getch()
> end
>end
- __teliva_timestamp:
>Fri Apr 22 22:59:10 2022
reload_feeds:
>function reload_feeds()
> for _, feed in ipairs(Feeds) do
> local response, status, headers = http.request(feed)
> if response == 200 then
> parse_items(response)
> Window:clear()
> print(response)
>--? print(feed, #Items)
> Window:getch()
> end
> end
>end
- __teliva_timestamp:
>Fri Apr 22 22:59:38 2022
reload_feeds:
>function reload_feeds()
> for _, feed in ipairs(Feeds) do
> local response, status, headers = http.request(feed)
> print(status)
> if status == 200 then
> parse_items(response)
> Window:clear()
> print(response)
>--? print(feed, #Items)
> Window:getch()
> end
> end
>end
- __teliva_timestamp:
>Fri Apr 22 23:01:46 2022
parse_items:
>function parse_items(lines)
> for line in lines:gmatch('[^\n]*') do
> print('^', line, '$')
> end
>end
- __teliva_timestamp:
>Fri Apr 22 23:02:26 2022
reload_feeds:
>function reload_feeds()
> for _, feed in ipairs(Feeds) do
> local response, status, headers = http.request(feed)
> print(status)
> if status == 200 then
> Window:clear()
> parse_items(response)
> print(response)
>--? print(feed, #Items)
> Window:getch()
> end
> end
>end
- __teliva_timestamp:
>Fri Apr 22 23:02:53 2022
parse_items:
>function parse_items(lines)
> for line in lines:gmatch('[^\n]+') do
> print('^', line, '$')
> end
>end
- __teliva_timestamp:
>Fri Apr 22 23:06:14 2022
parse_items:
>function parse_items(lines)
> for line in lines:gmatch('[^\n]+') do
> local t, text = line:gmatch('([^%s]+)\t(.*)')
> print('^', t, '--', text, '$')
> end
>end
- __teliva_timestamp:
>Fri Apr 22 23:06:29 2022
parse_items:
>function parse_items(lines)
> for line in lines:gmatch('[^\n]+') do
> local t, text = line:match('([^%s]+)\t(.*)')
> print('^', t, '--', text, '$')
> end
>end
- __teliva_timestamp:
>Fri Apr 22 23:07:06 2022
reload_feeds:
>function reload_feeds()
> for _, feed in ipairs(Feeds) do
> local response, status, headers = http.request(feed)
> print(status)
> if status == 200 then
> Window:clear()
> parse_items(feed, response)
> print(response)
>--? print(feed, #Items)
> Window:getch()
> end
> end
>end
- __teliva_timestamp:
>Fri Apr 22 23:10:44 2022
parse_items:
>function parse_items(feed, lines)
> if Items[feed] == nil then Items[feed] = {} end
> for line in lines:gmatch('[^\n]+') do
> local t, text = line:match('([^%s]+)\t(.*)')
> table.insert(Items[feed], {time=parse_time(t), text=text})
> end
> table.sort(Items[feed], function(a, b) return a.time < b.time end)
>end
- __teliva_timestamp:
>Fri Apr 22 23:11:24 2022
reload_feeds:
>function reload_feeds()
> for _, feed in ipairs(Feeds) do
> local response, status, headers = http.request(feed)
> print(status)
> if status == 200 then
> Window:clear()
> parse_items(feed, response)
> for _, x in ipairs(Items) do
> print(x.time, x.text)
>--? print(feed, #Items)
> Window:getch()
> end
> end
>end
- __teliva_timestamp:
>Fri Apr 22 23:11:36 2022
reload_feeds:
>function reload_feeds()
> for _, feed in ipairs(Feeds) do
> local response, status, headers = http.request(feed)
> print(status)
> if status == 200 then
> Window:clear()
> parse_items(feed, response)
> for _, x in ipairs(Items) do
> print(x.time, x.text)
> end
>--? print(feed, #Items)
> Window:getch()
> end
> end
>end
- __teliva_timestamp:
>Fri Apr 22 23:12:05 2022
parse_time:
>function parse_time(t)
> return t
>end
- __teliva_timestamp:
>Fri Apr 22 23:13:02 2022
reload_feeds:
>function reload_feeds()
> for _, feed in ipairs(Feeds) do
> local response, status, headers = http.request(feed)
> print(status)
> if status == 200 then
> Window:clear()
> parse_items(feed, response)
> for _, x in ipairs(Items[feed]) do
> print(x.time, x.text)
> end
>--? print(feed, #Items)
> Window:getch()
> end
> end
>end
- __teliva_timestamp:
>Fri Apr 22 23:13:50 2022
parse_items:
>function parse_items(feed, lines)
> if Items[feed] == nil then Items[feed] = {} end
> for line in lines:gmatch('[^\n]+') do
> local t, text = line:match('([^%s]+)\t(.*)')
> print(t, text)
> table.insert(Items[feed], {time=parse_time(t), text=text})
> end
> table.sort(Items[feed], function(a, b) return a.time < b.time end)
>end
- __teliva_timestamp:
>Fri Apr 22 23:14:36 2022
parse_items:
>function parse_items(feed, lines)
> if Items[feed] == nil then Items[feed] = {} end
> for line in lines:gmatch('[^\n]+') do
> print(line)
> local t, text = line:match('([^%s]+)\t(.*)')
> print(t, text)
> table.insert(Items[feed], {time=parse_time(t), text=text})
> end
> table.sort(Items[feed], function(a, b) return a.time < b.time end)
>end
- __teliva_timestamp:
>Fri Apr 22 23:19:20 2022
parse_items:
>function parse_items(feed, lines)
> if Items[feed] == nil then Items[feed] = {} end
> for line in lines:gmatch('[^\n]+') do
> print(line)
> local t, status = line:match('([^%s]+)\t(.*)')
> if t and status then
> print(t, text)
> table.insert(Items[feed], {time=parse_time(t), text=text})
> end
> end
> table.sort(Items[feed], function(a, b) return a.time < b.time end)
>end
- __teliva_timestamp:
>Fri Apr 22 23:19:44 2022
parse_items:
>function parse_items(feed, lines)
> if Items[feed] == nil then Items[feed] = {} end
> for line in lines:gmatch('[^\n]+') do
> print(line)
> local t, status = line:match('([^%s]+)\t(.*)')
> if t and status then
> print(t, status)
> table.insert(Items[feed], {time=parse_time(t), status=status})
> end
> end
> table.sort(Items[feed], function(a, b) return a.time < b.time end)
>end
- __teliva_timestamp:
>Fri Apr 22 23:19:56 2022
reload_feeds:
>function reload_feeds()
> for _, feed in ipairs(Feeds) do
> local response, status, headers = http.request(feed)
> print(status)
> if status == 200 then
> Window:clear()
> parse_items(feed, response)
> for _, x in ipairs(Items[feed]) do
> print(x.time, x.status)
> end
>--? print(feed, #Items)
> Window:getch()
> end
> end
>end
- __teliva_timestamp:
>Fri Apr 22 23:21:40 2022
parse_items:
>function parse_items(feed, lines)
> if Items[feed] == nil then Items[feed] = {} end
> for line in lines:gmatch('[^\n]+') do
> local t, status = line:match('([^%s]+)\t(.*)')
> if t and status then
> table.insert(Items[feed], {time=parse_time(t), status=status})
> end
> end
> table.sort(Items[feed], function(a, b) return a.time < b.time end)
>end
- __teliva_timestamp:
>Fri Apr 22 23:23:29 2022
reload_feeds:
>function reload_feeds()
> for _, feed in ipairs(Feeds) do
> local response, status, headers = http.request(feed)
> print(status)
> if status == 200 then
> Window:clear()
> parse_items(feed, response)
> local all_items = {}
> for feed, items in pairs(Items) do
> for _, item in ipairs(items) do
> table.insert(all_items, item)
> end
> end
> table.sort(all_items, function(a, b) return a.time < b.time end)
> for _, item in ipairs(all_items) do
> print(x.time, x.status)
> end
>--? print(feed, #Items)
> Window:getch()
> end
> end
>end
- __teliva_timestamp:
>Fri Apr 22 23:23:48 2022
reload_feeds:
>function reload_feeds()
> for _, feed in ipairs(Feeds) do
> local response, status, headers = http.request(feed)
> print(status)
> if status == 200 then
> Window:clear()
> parse_items(feed, response)
> local all_items = {}
> for feed, items in pairs(Items) do
> for _, item in ipairs(items) do
> table.insert(all_items, item)
> end
> end
> table.sort(all_items, function(a, b) return a.time < b.time end)
> for _, x in ipairs(all_items) do
> print(x.time, x.status)
> end
>--? print(feed, #Items)
> Window:getch()
> end
> end
>end
- __teliva_timestamp:
>Fri Apr 22 23:24:28 2022
parse_items:
>function parse_items(feed, lines)
> if Items[feed] == nil then Items[feed] = {} end
> for line in lines:gmatch('[^\n]+') do
> local t, status = line:match('([^%s]+)\t(.*)')
> if t and status then
> table.insert(Items[feed], {feed=feed, time=parse_time(t), status=status})
> end
> end
> table.sort(Items[feed], function(a, b) return a.time < b.time end)
>end
- __teliva_timestamp:
>Fri Apr 22 23:25:34 2022
reload_feeds:
>function reload_feeds()
> for _, feed in ipairs(Feeds) do
> local response, status, headers = http.request(feed)
> print(status)
> if status == 200 then
> Window:clear()
> parse_items(feed, response)
> local all_items = {}
> for feed, items in pairs(Items) do
> for _, item in ipairs(items) do
> table.insert(all_items, item)
> end
> end
> table.sort(all_items, function(a, b) return a.time < b.time end)
> for _, x in ipairs(all_items) do
> print(x.feed, x.time, x.status)
> end
>--? print(feed, #Items)
> Window:getch()
> end
> end
>end
- __teliva_timestamp:
>Fri Apr 22 23:27:08 2022
reload_feeds:
>function reload_feeds()
> for _, feed in ipairs(Feeds) do
> local response, status, headers = http.request(feed)
> print(status)
> if status == 200 then
> Window:clear()
> parse_items(feed, response)
> local all_items = {}
> for feed, items in pairs(Items) do
> for _, item in ipairs(items) do
> table.insert(all_items, item)
> end
> end
> table.sort(all_items, function(a, b) return a.time < b.time end)
> for _, x in ipairs(all_items) do
> print(x.feed, x.time, x.status)
> end
> Window:getch()
> end
> end
>end
- __teliva_timestamp:
>Fri Apr 22 23:29:49 2022
parse_items:
>function parse_items(feed, lines)
> if Items[feed] == nil then Items[feed] = {} end
> for line in lines:gmatch('[^\n]+') do
> local t, status = line:match('([^%s]+)\t(.*)')
> if t and status then
> table.insert(Items[feed], {feed=feed, time=t, parsed_time=parse_time(t), status=status})
> end
> end
> table.sort(Items[feed], compare_parsed_time)
>end
- __teliva_timestamp:
>Fri Apr 22 23:31:16 2022
compare_parsed_time:
>function compare_parsed_time(a, b)
> local a, b = a.parsed_time, b.parsed_time
> if a.
- __teliva_timestamp:
>Fri Apr 22 23:34:46 2022
parse_time:
>function parse_time(t)
> local year, month, day, hour, min, sec, patt_end = str:match("^(%d%d%d%d)%-(%d%d)%-(%d%d)[Tt](%d%d%.?%d*):(%d%d):(%d%d)()")
> return { year=year, month=month, day=day, hour=hour, min=min, sec=sec }
>end
- __teliva_timestamp:
>Fri Apr 22 23:36:13 2022
compare_parsed_time:
>function compare_parsed_time(a, b)
> local a, b = a.parsed_time, b.parsed_time
> if a.year ~= b.year then return a.year < b.year end
> if a.month ~= b.month then return a.month < b.month end
> if a.day ~= b.day then return a.day < b.day end
> if a.hour ~= b.hour then return a.hour < b.hour end
> if a.min ~= b.min then return a.min < b.min end
> return a.sec < b.sec
>end
- __teliva_timestamp:
>Fri Apr 22 23:36:35 2022
parse_time:
>function parse_time(t)
> local year, month, day, hour, min, sec, patt_end = t:match("^(%d%d%d%d)%-(%d%d)%-(%d%d)[Tt](%d%d%.?%d*):(%d%d):(%d%d)()")
> return { year=year, month=month, day=day, hour=hour, min=min, sec=sec }
>end
- __teliva_timestamp:
>Fri Apr 22 23:39:20 2022
parse_time:
>function parse_time(t)
> local year, month, day, hour, min, sec, tz_hour, tz_min = t:match("^(%d%d%d%d)%-(%d%d)%-(%d%d)[Tt](%d%d%.?%d*):(%d%d):(%d%d)[+-](%d%d):(%d%d)")
> return { year=year, month=month, day=day, hour=hour, min=min, sec=sec, tz_hour=tz_hour, tz_min=tz_min }
>end
- __teliva_timestamp:
>Fri Apr 22 23:47:55 2022
parse_time:
>function parse_time(t)
> local year, month, day, hour, min, sec, tz_op, tz_hour, tz_min = t:match("^(%d%d%d%d)%-(%d%d)%-(%d%d)[Tt](%d%d%.?%d*):(%d%d):(%d%d)([+-])(%d%d):(%d%d)")
> if tz_op == '+' then
> hour = int(hour) + int(tz_hour)
> min = int(min) + int(tz_min)
> else
> hour = int(hour) - int(tz_hour)
> min = int(min) - int(tz_min)
> end
> return os.time{ year=int(year), month=int(month), day=int(day), hour=int(hour), min=int(min), sec=int(sec) }
>end
- __teliva_timestamp:
>Fri Apr 22 23:48:46 2022
compare_parsed_time:
>function compare_parsed_time(a, b)
> return a.parsed_time < b.parsed_time
>end
>
>-- unused
>function compare_parsed_time2(a, b)
> local a, b = a.parsed_time, b.parsed_time
> if a.year ~= b.year then return a.year < b.year end
> if a.month ~= b.month then return a.month < b.month end
> if a.day ~= b.day then return a.day < b.day end
> if a.hour ~= b.hour then return a.hour < b.hour end
> if a.min ~= b.min then return a.min < b.min end
> return a.sec < b.sec
>end
- __teliva_timestamp:
>Fri Apr 22 23:49:13 2022
parse_time:
>function parse_time(t)
> local year, month, day, hour, min, sec, tz_op, tz_hour, tz_min = t:match("^(%d%d%d%d)%-(%d%d)%-(%d%d)[Tt](%d%d%.?%d*):(%d%d):(%d%d)([+-])(%d%d):(%d%d)")
> local int = tonumber
> if tz_op == '+' then
> hour = int(hour) + int(tz_hour)
> min = int(min) + int(tz_min)
> else
> hour = int(hour) - int(tz_hour)
> min = int(min) - int(tz_min)
> end
> return os.time{ year=int(year), month=int(month), day=int(day), hour=int(hour), min=int(min), sec=int(sec) }
>end
- __teliva_timestamp:
>Fri Apr 22 23:51:08 2022
parse_time:
>function parse_time(t)
> local year, month, day, hour, min, sec, tz_op, tz_hour, tz_min = t:match("^(%d%d%d%d)%-(%d%d)%-(%d%d)[Tt](%d%d%.?%d*):(%d%d):(%d%d)([+-])(%d%d):(%d%d)")
> local int = tonumber
> -- convert to UTC
> if tz_op == '+' then
> hour = int(hour) - int(tz_hour)
> min = int(min) - int(tz_min)
> else
> hour = int(hour) + int(tz_hour)
> min = int(min) + int(tz_min)
> end
> return os.time{ year=int(year), month=int(month), day=int(day), hour=hour, min=min, sec=int(sec) }
>end
- __teliva_timestamp:
>Fri Apr 22 23:52:27 2022
__teliva_note:
>parsing twtxt feeds and sorting items after accounting for timezones
reload_feeds:
>function reload_feeds()
> for _, feed in ipairs(Feeds) do
> local response, status, headers = http.request(feed)
> print(status)
> if status == 200 then
> Window:clear()
> parse_items(feed, response)
> local all_items = {}
> for feed, items in pairs(Items) do
> for _, item in ipairs(items) do
> table.insert(all_items, item)
> end
> end
> table.sort(all_items, function(a, b) return a.parsed_time < b.parsed_time end)
> for _, x in ipairs(all_items) do
> print(x.feed, x.time, x.status)
> end
> Window:getch()
> end
> end
>end
- __teliva_timestamp:
>Fri Apr 22 23:57:10 2022
update:
>function update(window)
> local key = window:getch()
> if key == 18 then -- ctrl-r
> reload_feeds(window)
> end
>end
- __teliva_timestamp:
>Sat Apr 23 00:13:26 2022
render_feed_status:
>function render_feed_status(window, fs)
> window:clear()
> for _, fs in ipairs(feed_status) do
> if fs.status then
> if fs.status/100 == 2 then
> window:attrset(curses.color_pair(10))
> window:addstr(fs.feed..'\n')
> window:attrset(curses.A_NORMAL)
> else
> window:attrset(curses.color_pair(9))
> window:addstr(fs.feed..'\n')
> window:attrset(curses.A_NORMAL)
> end
> else
> window:addstr(fs.feed..'\n')
> end
> end
> window:refresh()
>end
- __teliva_timestamp:
>Sat Apr 23 00:18:59 2022
render:
>function render(window)
> window:clear()
> -- draw feeds
> for i, feed in ipairs(Feeds) do
> print(feed)
> end
> -- draw items
> local all_items = {}
> local n = 0
> for feed, items in pairs(Items) do
> n = n+1
> for _, item in ipairs(items) do
> table.insert(all_items, item)
> end
> end
> table.sort(all_items, function(a, b) return a.parsed_time < b.parsed_time end)
> for _, x in ipairs(all_items) do
> print(x.feed, x.time, x.status)
> end
> window:refresh()
>end
- __teliva_timestamp:
>Sat Apr 23 00:20:31 2022
__teliva_note:
>show progress when downloading feeds
reload_feeds:
>function reload_feeds(window)
> window:nodelay(true)
> feed_status = {}
> for _, feed in ipairs(Feeds) do
> table.insert(feed_status, {feed=feed})
> end
> for _, fs in ipairs(feed_status) do
> local response, status, headers = http.request(fs.feed)
> fs.status = status
> parse_items(fs.feed, response)
> render_feed_status(window, fs)
> if window:getch() then break end
> end
> window:nodelay(false)
>end
- __teliva_timestamp:
>Sat Apr 23 00:28:09 2022
render:
>function render(window)
> window:clear()
> -- draw feeds
> print(str(#Feeds)..' feeds')
> -- draw items
> local all_items = {}
> local n = 0
> for feed, items in pairs(Items) do
> n = n+1
> for _, item in ipairs(items) do
> table.insert(all_items, item)
> end
> end
> table.sort(all_items, function(a, b) return a.parsed_time < b.parsed_time end)
> for _, x in ipairs(all_items) do
> print(x.feed, x.time, x.status)
> end
> window:refresh()
>end
- __teliva_timestamp:
>Sat Apr 23 00:29:10 2022
reload_feeds:
>function reload_feeds(window)
> window:nodelay(true)
> feed_status = {}
> for _, feed in ipairs(Feeds) do
> table.insert(feed_status, {feed=feed})
> end
> render_feed_status(
> for _, fs in ipairs(feed_status) do
> local response, status, headers = http.request(fs.feed)
> fs.status = status
> parse_items(fs.feed, response)
> render_feed_status(window, fs)
> if window:getch() then break end
> end
> window:nodelay(false)
>end
- __teliva_timestamp:
>Sat Apr 23 00:29:23 2022
render_feed_status:
>function render_feed_status(window, feed_status)
> window:clear()
> for _, fs in ipairs(feed_status) do
> if fs.status then
> if fs.status/100 == 2 then
> window:attrset(curses.color_pair(10))
> window:addstr(fs.feed..'\n')
> window:attrset(curses.A_NORMAL)
> else
> window:attrset(curses.color_pair(9))
> window:addstr(fs.feed..'\n')
> window:attrset(curses.A_NORMAL)
> end
> else
> window:addstr(fs.feed..'\n')
> end
> end
> window:refresh()
>end
- __teliva_timestamp:
>Sat Apr 23 00:29:48 2022
reload_feeds:
>function reload_feeds(window)
> window:nodelay(true)
> local feed_status = {}
> for _, feed in ipairs(Feeds) do
> table.insert(feed_status, {feed=feed})
> end
> render_feed_status(feed_status)
> for _, fs in ipairs(feed_status) do
> local response, status, headers = http.request(fs.feed)
> fs.status = status
> parse_items(fs.feed, response)
> render_feed_status(window, feed_status)
> if window:getch() then break end
> end
> window:nodelay(false)
>end
- __teliva_timestamp:
>Sat Apr 23 00:30:18 2022
__teliva_note:
>fix an accidental global variable
reload_feeds:
>function reload_feeds(window)
> window:nodelay(true)
> local feed_status = {}
> for _, feed in ipairs(Feeds) do
> table.insert(feed_status, {feed=feed})
> end
> render_feed_status(window, feed_status)
> for _, fs in ipairs(feed_status) do
> local response, status, headers = http.request(fs.feed)
> fs.status = status
> parse_items(fs.feed, response)
> render_feed_status(window, feed_status)
> if window:getch() then break end
> end
> window:nodelay(false)
>end
- __teliva_timestamp:
>Sat Apr 23 00:45:54 2022
__teliva_note:
>ignore non-compliant "comments" containing tabs
>https://merveilles.town/@akkartik/108179923032818671
parse_items:
>function parse_items(feed, lines)
> if Items[feed] == nil then Items[feed] = {} end
> for line in lines:gmatch('[^\n]+') do
> local t, status = line:match('([0-9][^%s]+)\t(.*)')
> if t and status then
> table.insert(Items[feed], {feed=feed, time=t, parsed_time=parse_time(t), status=status})
> end
> end
> table.sort(Items[feed], compare_parsed_time)
>end
- __teliva_timestamp:
>Sat Apr 23 00:52:39 2022
render_feed_status:
>function render_feed_status(window, feed_status)
> window:clear()
> for _, fs in ipairs(feed_status) do
> if fs.status then
> if fs.status == 2 then
> window:attrset(curses.color_pair(10))
> window:addstr(fs.feed..'\n')
> window:attrset(curses.A_NORMAL)
> else
> window:attrset(curses.color_pair(9))
> window:addstr(fs.feed..'\n')
> window:attrset(curses.A_NORMAL)
> end
> else
> window:addstr(fs.feed..'\n')
> end
> end
> window:refresh()
>end
- __teliva_timestamp:
>Sat Apr 23 00:56:34 2022
__teliva_note:
>handle errors in requests
reload_feeds:
>function reload_feeds(window)
> window:nodelay(true)
> local feed_status = {}
> for _, feed in ipairs(Feeds) do
> table.insert(feed_status, {feed=feed})
> end
> render_feed_status(window, feed_status)
> for _, fs in ipairs(feed_status) do
> local response, status, headers = http.request(fs.feed)
> if response == nil then
> fs.status = 4 -- treat any network issue like a 404
> else
> fs.status = status/100
> if fs.status == 2 then
> parse_items(fs.feed, response)
> end
> render_feed_status(window, feed_status)
> end
> if window:getch() then break end
> end
> window:nodelay(false)
>end
- __teliva_timestamp:
>Sat Apr 23 01:06:55 2022
__teliva_note:
>handle more time formats
parse_time:
>function parse_time(t)
> local int = tonumber
> -- hackily strip out fractions of seconds
> local year, month, day, hour, min, sec, tz_op, tz_hour, tz_min = t:match("^(%d%d%d%d)%-(%d%d)%-(%d%d)[Tt](%d%d%.?%d*):(%d%d):(%d%d)%.?[0-9]*([+-])(%d%d):(%d%d)")
> if year == nil then
> year, month, day, hour, min, sec = t:match("^(%d%d%d%d)%-(%d%d)%-(%d%d)[Tt](%d%d%.?%d*):(%d%d):(%d%d)%.?[0-9]*[Zz]")
> end
> if year == nil then
> return 0
> end
> -- convert to UTC
> if tz_op == '+' then
> hour = int(hour) - int(tz_hour)
> min = int(min) - int(tz_min)
> elseif tz_op == '-' then
> hour = int(hour) + int(tz_hour)
> min = int(min) + int(tz_min)
> end
> return os.time{ year=int(year), month=int(month), day=int(day), hour=hour, min=min, sec=int(sec) }
>end
>
>function test_parse_time()
> parse_time('2019-07-31T14:19+01:00') -- invalid per https://www.ietf.org/rfc/rfc3339.txt, but seen in the while; just ignore
> parse_time('2019-09-16T01:13:07-07:00')
> parse_time('2019-09-16T01:13:07Z')
>end