ncurses/2021-05-12-llt21

社内のLTイベント「えるLT Vol.21 オンライン」で発表した資料です

Transcript

1. ncurses Satoshi SAKAO えるLT Vol.21 2021-05-12 1
2. 話すひと 2 🏢 インフォコム株式会社 品質マネジメント推進室 👨🔧 ソフトウェアエンジニア 🛠 Node.js / GCP / IoT / iOS (Swift) 💖 猫，テクテクライフ（ランク: 20） Satoshi SAKAO @ottijp
3. 3 motivation
4. PR to ranger/ranger 4 https://github.com/ranger/ranger/pull/2030
5. NCURSES Programming HOWTO 5 https://tldp.org/HOWTO/NCURSES-Programming-HOWTO/
6. 6 what’s curses
7. curses • is a library • realizes GUI like CUI • provides terminal independent API 7
8. e.g. ranger (filer) 8
9. e.g. tig (git client) 9
10. ncurses • new curses • emulation of the original (System V) curses • part of GNU project • https://invisible-island.net/ncurses/ 10
11. 11 features
12. features • screen manipulation • print characters • change format of characters • interface with the keyboard and the mouse • scrolling • windows 12
13. sisters • panel • menu • form • CDK (Curses Development Kit) 13
14. 14 demo https://github.com/ottijp/ncurses-demo-llt21
15. 1. print characters • int mvaddch(int y, int x, const chtype ch); 15
16. 2. change format of characters • int start_color(void); • int init_pair(short pair, short f, short b); • int attrset(int attrs); 16
17. 3. interface with the keyboard and the mouse • int getch(void); • mmask_t mousemask(mmask_t newmask, mmask_t *oldmask); • int getmouse(MEVENT *event); 17
18. 18 in python, node.js and swift
19. python 19 https://docs.python.org/3/library/curses.html
20. node.js 20 https://github.com/fresc81/node-curses
21. node.js 21 https://github.com/chjj/blessed
22. swift 22 https://github.com/TheCoderMerlin/Curses
23. 23 Appendix
24. refs • ncurses - Wikipedia https://en.wikipedia.org/wiki/Ncurses • NCURSES Programming HOWTO https://tldp.org/HOWTO/NCURSES-Programming-HOWTO/ 24