Re: [dev] organizing programs
Hi, NRK wrote: > Not too bad, and since the source was pretty small, I decided to take a > glance. Here's some unsolicited review: Wow, thanks for the code review! Some of the mistakes you spotted are things I have learnt after writing this code, but many are new to me. I love learning this kind of stuff! I have implemented the suggested improvements. I won't reply in detail to avoid going off topic, except for this: > http://www.catb.org/~esr/writings/unix-koans/ten-thousand.html Very wise! I have only resorted to writing this in C rather than in sh after fighting against string parsing for quite some time. I thought strftime could save me, and in some way it did. Best, Sebastiano
Re: [dev] organizing programs
On Sun, May 14, 2023 at 09:55:16PM +0200, Sebastiano Tronto wrote:
> I could not find any tool that was simple enough for my taste, so I
> rolled my own[0].
>
> [0] https://git.tronto.net/sdep
Not too bad, and since the source was pretty small, I decided to take a
glance. Here's some unsolicited review:
9 #define min(X,Y) (Xhttps://c-faq.com/cpp/safemacros.html
11 /*
12 * Maximum number of characters in a line. The rest will be
truncated.
13 * Change this if you need very long lines.
14 */
15 static const int MAXLEN = 1;
`const` in C doesn't mean "constant expression", and so if you use
`buf[MAXLEN]` you'll get a VLA (compile with -Wvla and you should see warning
about it). Either use a #define or an enum.
https://c-faq.com/ansi/constasconst.html
55 static Options default_op();
`f()` does not do what you might think. A function without an argument list
takes *unspeficied* amount of arguments, not zero arguments (a historical
baggage). These have been obsolete since C99 and newer clang version defaults
to erroring out on it, see: https://wiki.gentoo.org/wiki/Modern_C_porting
Explicitly use `f(void)` instead.
71 next->ev.text = malloc(sizeof(char) * l);
sizeof(char) is *defined* to be always 1. So it's not really doing anything:
https://c-faq.com/malloc/sizeofchar.html
72 strncpy(next->ev.text, text, l);
`strncpy` doesn't nul-terminate in case the soruce is bigger than the dest.
Additionally strncpy will *always* write `n` bytes even if the soruce fits into
the dest. This is rarely the semantic people want and 99% of the time I see
strncpy used it's typically either bugger, misused, or enefficient.
There is no standard "copy and truncate if needed" function. Closest you can
find would be memccpy:
if (memccpy(dest, src, '\0', n) == NULL)
dest[n - 1] = '\0';
You can wrap this in function or roll your own (TIP: if you have your string
copy
function return a pointer to the nul-byte in dest, then you can use it for
efficient concat: https://www.symas.com/post/the-sad-state-of-c-strings).
216 static char *
217 strtrim(char *t)
218 {
219 char *s;
220
221 for (s = [strlen(t)-1]; s != t && isspace(*s); *s = '\0',
s--);
222 for (; *t != '\0' && isspace(*t); t++);
The entire ctype library is badly designed because it only accepts input that's
either EOF or [0, UCHAR_MAX]. From the manpage:
| These functions check whether c, which must have the value of an unsigned char
| or EOF (otherwise the behavior is undefined)
Either cast the argument to `unsigned char` or just roll your own. (Also
keep in mind that `plain char` can be either signed or unsigned
depending on the implementation).
Also the name `strtrim` steps into the namespace reserved by .
You can rename it to `str_trim` to avoid it.
And that's mostly it from a quick glance. Slightly relevant:
http://www.catb.org/~esr/writings/unix-koans/ten-thousand.html
- NRK
Re: [dev] organizing programs
Hello, LM wrote: > I've been looking into todo programs, task schedulers and related > organizing programs. [...] > > I'd be curious to know what tools other people use on the list to > handle organizational jobs such as time and task scheduling, todo > lists, habit tracking, displaying/printing calendars, etc. [...] For TODO lists I have always used plain text files, either a single file or a directory with multiple files when things got out of hand. I have read about using mail inboxes as todo-list, I'd like to try once; but for now it is just an entry in my TODO.txt (seriously). The only thing I was missing from plain text files were notifications / reminders for time-sensitive stuff. I could not find any tool that was simple enough for my taste, so I rolled my own[0]. It is a C program that reads line formatted as "[date] [text]" from stdin and prints out those whose date matches the current minute to stdout. I have a script running every 60 seconds that feeds a file with my task list to this program and pipes the output to herbe[1] (or to notify-send). I have some shortcuts to add pre-formatted entries to my tasks file, but usually I just edit it with vi. For calendar I just use cal(1) in a pop-up terminal[2][3]. Best, Sebastiano [0] https://git.tronto.net/sdep [1] https://github.com/dudik/herbe [2] https://git.tronto.net/scripts/file/popup-cal12.html [3] https://git.tronto.net/scripts/file/popup-cal3.html
Re: [dev] organizing programs
On Sat, May 13, 2023 at 11:26:15PM +0200, Viktor Grigorov wrote: > Pen and paper work best for me when it comes to tasks. I like it, when you attach it to a balloon you can even sync it to the clouds! > > May 13, 2023, 23:01 by s.je...@gmail.com: > > > Heyhey! > > > > Страхиња Радић wrote: > > > >> On 23/05/12 02:11PM, LM wrote: > >> > I'd be curious to know what tools other people use on the list to > >> > handle organizational jobs such as time and task scheduling, todo > >> > lists, habit tracking, displaying/printing calendars, etc. Any > >> > recommendations? If you use more than one application, which programs > >> > work together or chain well? Thanks. > >> > >> http://codemadness.org/todo-application.html > >> > > > > Just chiming in with that years ago I was trying out taskwarrior as > > well but after neglecting this system for years I have simply used a > > ~/TODO.txt file at work. > > > > I always order the items in there according to priority and delete the > > items I have finished using vim. This system has worked very well for > > me and I haven't seen a need to change it yet. Your mileage may vary! > > > > Cheers, > > Silvan > > > > -- Kind regards, Hiltjo
Re: [dev] organizing programs
I use a a a timer zsh script that has a timer/countdown and alarm options, the former of which can easily serve as a pomodo technique utility. There was a todo dash script using dmenu, if you input a new item it gets added, otherwise an existed is removed from the file. Can share if interested. Pen and paper work best for me when it comes to tasks. May 13, 2023, 23:01 by s.je...@gmail.com: > Heyhey! > > Страхиња Радић wrote: > >> On 23/05/12 02:11PM, LM wrote: >> > I'd be curious to know what tools other people use on the list to >> > handle organizational jobs such as time and task scheduling, todo >> > lists, habit tracking, displaying/printing calendars, etc. Any >> > recommendations? If you use more than one application, which programs >> > work together or chain well? Thanks. >> >> http://codemadness.org/todo-application.html >> > > Just chiming in with that years ago I was trying out taskwarrior as > well but after neglecting this system for years I have simply used a > ~/TODO.txt file at work. > > I always order the items in there according to priority and delete the > items I have finished using vim. This system has worked very well for > me and I haven't seen a need to change it yet. Your mileage may vary! > > Cheers, > Silvan >
Re: [dev] organizing programs
Heyhey! Страхиња Радић wrote: > On 23/05/12 02:11PM, LM wrote: > > I'd be curious to know what tools other people use on the list to > > handle organizational jobs such as time and task scheduling, todo > > lists, habit tracking, displaying/printing calendars, etc. Any > > recommendations? If you use more than one application, which programs > > work together or chain well? Thanks. > > http://codemadness.org/todo-application.html Just chiming in with that years ago I was trying out taskwarrior as well but after neglecting this system for years I have simply used a ~/TODO.txt file at work. I always order the items in there according to priority and delete the items I have finished using vim. This system has worked very well for me and I haven't seen a need to change it yet. Your mileage may vary! Cheers, Silvan
Re: [dev] organizing programs
On 23/05/12 02:11PM, LM wrote: > I'd be curious to know what tools other people use on the list to > handle organizational jobs such as time and task scheduling, todo > lists, habit tracking, displaying/printing calendars, etc. Any > recommendations? If you use more than one application, which programs > work together or chain well? Thanks. http://codemadness.org/todo-application.html signature.asc Description: PGP signature
Re: [dev] organizing programs
On Fri, May 12, 2023 at 02:11:33PM -0400, LM wrote: > I'd be curious to know what tools other people use on the list to > handle organizational jobs such as time and task scheduling, todo > lists, habit tracking, displaying/printing calendars, etc. Any > recommendations? If you use more than one application, which programs > work together or chain well? Thanks. In the past I've used taskwarrior [0] for managing todos. It's a cli application with pretty much most features you might expect out of a todo app (and as a result of it, the source isn't as small/lean as typical suckless style software). Not sure if this is the type of thing you're after or not, but I figured I'd mention it. However, I no longer use it (or any other todo application) because I realized these "organizational" application cause more distraction than productivity (for me at least). [0]: https://taskwarrior.org/ - NRK
Re: [dev] organizing programs
On 05/12/23 02:11PM, LM wrote: > I'd be curious to know what tools other people use on the list to > handle organizational jobs such as time and task scheduling, todo > lists, habit tracking, displaying/printing calendars, etc. Any > recommendations? If you use more than one application, which programs > work together or chain well? Thanks. > Because my deadlines tend to be more fluid, I've found "todo trees" to be helpful in terms of managing tasks & task dependencies. One of my recent "todo trees": curl jer.cx/pasta/QtA | dot -Tpng /dev/stdin -o o.png && sxiv o.png We're using graphviz' "dot" for the visualization here. In the example, I need a downtime window before I can goto the DC, as well as some hardware brackets, then when we're there, we can install the hardware, etc; Not sure how one would visualize(& make it easy to express) deadlines, dependencies & conditionals, but I suspect there's a very lucrative market oppurtunity for someone who could.
[dev] organizing programs
I've been looking into todo programs, task schedulers and related organizing programs. I ran across information about todo.txt and org mode and that got me interested in chaining some programs together that could work with text based organizational information. I just completed writing a simple SDL program that takes a time as input, brings up a green square and when the time is reached it gradually changes the square to yellow and then red to warn a user to transition into ending a current task (similar to alerts used by some Toastmasters groups). Trying to come up with some ways I could use it with other programs. From what I read, it didn't look like todo.txt handled time periods in the specification but the information could probably be added. Some articles mentioned using ledger to track time logging instead of using todo.txt. For an offline calendar program, I've used pcal in the past and I'm investigating calcurse at the moment. I'd be curious to know what tools other people use on the list to handle organizational jobs such as time and task scheduling, todo lists, habit tracking, displaying/printing calendars, etc. Any recommendations? If you use more than one application, which programs work together or chain well? Thanks.
