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	add some more control codes - lchat - A line oriented chat front end for ii.
	git clone git://git.suckless.org/lchat
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	---
	commit c2233eb6bae4c356cd92d71b9173bd3c62fed00e
	parent 5ee1873a1ec3bc220efc5e1d1203b6fec97b8b71
	Author: shuall <[email protected]>
	Date: Tue, 18 Jul 2017 20:37:40 -0400

	add some more control codes

	Using st, and these are more for my own convenience.
	I'm not sure how they translate to other terminals.
	- ctrl+u sends NAK, so clear line on NAK
	- home and end don't send 'home' and 'end' vt100 codes,
	they send \033[7~ and \033[8~ respectively

	Diffstat:
	M slackline.c \| 33 +++++++++++++++++++++++++++++…
	M slackline.h \| 3 ++-

	2 files changed, 35 insertions(+), 1 deletion(-)
	---
	diff --git a/slackline.c b/slackline.c
	@@ -157,9 +157,39 @@ sl_keystroke(struct slackline *sl, int key)
	sl->last -= ncur - sl->ptr;
	*sl->last = '\0';
	break;
	+ case '0':
	+ case '1':
	+ case '2':
	+ case '3':
	+ case '4':
	+ case '5':
	+ case '6':
	+ case '7':
	+ case '8':
	+ case '9':
	+ sl->nummod = key;
	+ sl->esc = ESC_BRACKET_NUM;
	+ return 0;
	}
	sl->esc = ESC_NONE;
	return 0;
	+ case ESC_BRACKET_NUM:
	+ switch(key) {
	+ case '~':
	+ switch(sl->nummod) {
	+ case '7':
	+ sl->bcur = sl->rcur = 0;
	+ sl->ptr = sl->buf;
	+ break;
	+ case '8':
	+ sl->rcur = sl->rlen;
	+ sl->bcur = sl_postobyte(sl, sl->rcur);
	+ sl->ptr = sl->buf + sl->bcur;
	+ break;
	+ }
	+ sl->esc = ESC_NONE;
	+ return 0;
	+ }
	}

	/* handle ctl keys */
	@@ -188,6 +218,9 @@ sl_keystroke(struct slackline *sl, int key)
	sl->ptr = ncur;

	return 0;
	+ case 21: /* ctrl+u or clearline, weird that it's a NAK */
	+ sl_reset(sl);
	+ return 0;
	}

	/* byte-wise composing of UTF-8 runes */
	diff --git a/slackline.h b/slackline.h
	@@ -3,7 +3,7 @@

	#include <stdbool.h>

	-enum esc_seq {ESC_NONE, ESC, ESC_BRACKET};
	+enum esc_seq {ESC_NONE, ESC, ESC_BRACKET, ESC_BRACKET_NUM};

	struct slackline {
	/* buffer */
	@@ -21,6 +21,7 @@ struct slackline {
	size_t rlen; /* amount of runes */

	enum esc_seq esc;
	+ char nummod;

	/* UTF-8 handling */
	char ubuf[6]; /* UTF-8 buffer */