From d39bbb65606d06d26abaca21bf065ca35c70babe Mon Sep 17 00:00:00 2001 From: June McEnroe Date: Fri, 21 Jul 2017 19:57:46 -0400 Subject: Add hnel --- home/.bin/hnel.c | 98 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 98 insertions(+) create mode 100755 home/.bin/hnel.c (limited to 'home') diff --git a/home/.bin/hnel.c b/home/.bin/hnel.c new file mode 100755 index 00000000..0e270a5c --- /dev/null +++ b/home/.bin/hnel.c @@ -0,0 +1,98 @@ +#if 0 +exec cc -Wall -Wextra -pedantic $@ -lutil -o $(dirname $0)/hnel $0 +#endif + +// Wrapper for preserving HJKL in Tarmak layouts. + +#include +#include +#include +#include +#include +#include + +#if defined __FreeBSD__ +#include +#elif defined __linux__ +#include +#else +#include +#endif + +static ssize_t writeAll(int fd, const char *buf, size_t len) { + ssize_t writeLen; + while (0 < (writeLen = write(fd, buf, len))) { + buf += writeLen; + len -= writeLen; + } + return writeLen; +} + +static struct termios saveTerm; + +static void restoreTerm(void) { + tcsetattr(STDERR_FILENO, TCSADRAIN, &saveTerm); +} + +int main(int argc, char *argv[]) { + if (argc < 2) return EX_USAGE; + + char table[256] = {0}; + table['n'] = 'j'; table['N'] = 'J'; table[CTRL('N')] = CTRL('J'); + table['e'] = 'k'; table['E'] = 'K'; table[CTRL('E')] = CTRL('K'); + table['j'] = 'e'; table['J'] = 'E'; table[CTRL('J')] = CTRL('E'); + table['k'] = 'n'; table['K'] = 'N'; table[CTRL('K')] = CTRL('N'); + + int master; + pid_t pid = forkpty(&master, NULL, NULL, NULL); + if (pid < 0) err(EX_OSERR, "forkpty"); + + if (!pid) { + execvp(argv[1], argv + 1); + err(EX_OSERR, "%s", argv[1]); + } + + int error = tcgetattr(STDERR_FILENO, &saveTerm); + if (error) err(EX_IOERR, "tcgetattr"); + atexit(restoreTerm); + + struct termios raw; + cfmakeraw(&raw); + error = tcsetattr(STDERR_FILENO, TCSADRAIN, &raw); + if (error) err(EX_IOERR, "tcsetattr"); + + struct pollfd fds[2] = { + { .fd = STDIN_FILENO, .events = POLLIN }, + { .fd = master, .events = POLLIN }, + }; + + char buf[4096]; + ssize_t len; + while (0 < poll(fds, 2, -1)) { + if (fds[0].revents) { + len = read(STDIN_FILENO, buf, sizeof(buf)); + if (len < 0) err(EX_IOERR, "read(%d)", STDIN_FILENO); + + if (len == 1) { + unsigned char c = buf[0]; + if (table[c]) buf[0] = table[c]; + } + + len = writeAll(master, buf, len); + if (len < 0) err(EX_IOERR, "write(%d)", master); + } + + if (fds[1].revents) { + len = read(master, buf, sizeof(buf)); + if (len < 0) err(EX_IOERR, "read(%d)", master); + len = writeAll(STDOUT_FILENO, buf, len); + if (len < 0) err(EX_IOERR, "write(%d)", STDOUT_FILENO); + } + + int status; + pid_t dead = waitpid(pid, &status, WNOHANG); + if (dead < 0) err(EX_OSERR, "waitpid(%d)", pid); + if (dead) return WIFEXITED(status) ? WEXITSTATUS(status) : EX_SOFTWARE; + } + err(EX_IOERR, "poll"); +} -- cgit 1.4.1 colspan='3' class='logmsg'> 2020-11-26Publish "Inability"June McEnroe I don't know, it's something. 2020-11-26Render content into atom feedJune McEnroe And fix some atom lints. 2020-11-26Update plan with different things I won't doJune McEnroe 2020-11-19Add "Come On Petunia"June McEnroe 2020-11-13Add x4 to LESSJune McEnroe 2020-11-04Remove modified sensitivity settingsJune McEnroe 2020-10-29Remove editJune McEnroe 2020-10-27Switch gr alias back to git rebaseJune McEnroe I always type out git reset and sometimes still expect gr to be rebase... Never got used to it I guess. 2020-10-27Allow cd host: to cd to same path over sshJune McEnroe 2020-10-27Use SendEnv for cd host:pathJune McEnroe Works properly for weird paths, etc. 2020-10-27Allow cd host:path over sshJune McEnroe Requires AcceptEnv SSH_CD in the remote sshd_config. 2020-10-07Use mandoc -T utf8 for text.June McEnroe Don't depend on LANG being set. 2020-09-20Add The Awakened KingdomJune McEnroe A cute extra novella. Finally finished this series. 2020-09-12Move /opt/local back, cheat port select to use system manJune McEnroe This is not really how you're supposed to use the select system, I don't think, since the mandoc package actually creates those files, but it does work. This lets me actually use the git installed by MacPorts. 2020-09-12Move /opt/local behind /usr againJune McEnroe The reason I did this with pkgsrc was because I actually don't want the man(1) from mandoc, since it won't follow MANSECT. Same applies to MacPorts. I wish I could disable its man(1) with a variant or whatever. 2020-09-12Enable toc in cgit renderings of man pagesJune McEnroe But keep it disabled for READMEs since they always use non-standard sections and the TOC is just distracting there, I think. Also add the style so its h1 is the same size as the ones inside sections... 2020-09-11Install mandoc on macOSJune McEnroe 2020-09-11Rewrite install script yet againJune McEnroe 2020-09-11Remove NetBSD from install scriptJune McEnroe I never use it. 2020-09-11Use MacPorts rather than pkgsrcJune McEnroe My system is probably such a mess now... 2020-09-11Add debian VM name to sshJune McEnroe 2020-09-11Add influencer tweetJune McEnroe 2020-09-10Add The Kingdom of GodsJune McEnroe Reading has really slowed down :( 2020-09-07Add SunglassesJune McEnroe An IRC find. 2020-09-06Add Between the BreathsJune McEnroe One of those good songs from a soundtrack of a film that probably isn't? The summary sounds a lot more interesting than the title implies, at least. 2020-09-04Open /dev/tty in nudgeJune McEnroe This makes it work even when it's run connected to a pipe, i.e. as the notify command of catgirl... 2020-09-04Add nudgeJune McEnroe 2020-09-03Build fbclock with -lzJune McEnroe I guess this got lost somewhere, long ago... 2020-08-29Add tweets from retweetsJune McEnroe