diff options
| author | Thomas Voss <mail@thomasvoss.com> | 2023-12-10 00:39:16 +0100 |
|---|---|---|
| committer | Thomas Voss <mail@thomasvoss.com> | 2023-12-10 00:39:37 +0100 |
| commit | 03f8544691a8de9f77a803fd8cd2eeadb919ec03 (patch) | |
| tree | 4d3431d678b892cb057af72a982ac73d313d60f9 | |
Genesis commit
| -rw-r--r-- | LICENSE | 14 | ||||
| -rw-r--r-- | README | 4 | ||||
| -rw-r--r-- | c/.gitignore | 3 | ||||
| -rw-r--r-- | c/base.mk | 4 | ||||
| -rw-r--r-- | c/cat/.gitignore | 1 | ||||
| -rw-r--r-- | c/cat/Makefile | 8 | ||||
| -rw-r--r-- | c/cat/cat.c | 102 | ||||
| -rw-r--r-- | c/sigfd/.gitignore | 1 | ||||
| -rw-r--r-- | c/sigfd/Makefile | 8 | ||||
| -rw-r--r-- | c/sigfd/main.c | 42 | ||||
| -rw-r--r-- | c/timer/.gitignore | 1 | ||||
| -rw-r--r-- | c/timer/Makefile | 11 | ||||
| -rw-r--r-- | c/timer/main.c | 48 | ||||
| -rw-r--r-- | elixir/aoc/01/input | 2244 | ||||
| -rw-r--r-- | elixir/aoc/01/main.exs | 12 | ||||
| -rw-r--r-- | go/read-unix-sock/read-unix-sock.go | 30 | ||||
| -rw-r--r-- | m4/ifdef/ifdef.m4 | 19 | ||||
| -rwxr-xr-x | sed/bf2c/bf2c.sed | 27 | ||||
| -rw-r--r-- | sed/bf2c/test.bf | 709 | ||||
| -rw-r--r-- | sed/dc/README | 1 | ||||
| -rwxr-xr-x | sed/dc/dc.sed | 328 |
21 files changed, 3617 insertions, 0 deletions
@@ -0,0 +1,14 @@ +BSD Zero Clause License + +Copyright © 2023 Thomas Voss + +Permission to use, copy, modify, and/or distribute this software for any +purpose with or without fee is hereby granted. + +THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH +REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY +AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, +INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM +LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR +OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR +PERFORMANCE OF THIS SOFTWARE. @@ -0,0 +1,4 @@ +This is just a collection of random code I’ve written. Nothing here is +meaningful, I’m just putting it on the internet so that I have a backup +somewhere. This is mostly just me figuring out how some new library +works, playing with some idea, etc. diff --git a/c/.gitignore b/c/.gitignore new file mode 100644 index 0000000..b8be893 --- /dev/null +++ b/c/.gitignore @@ -0,0 +1,3 @@ +.cache/ +compile_commands.json +*.o diff --git a/c/base.mk b/c/base.mk new file mode 100644 index 0000000..7aea715 --- /dev/null +++ b/c/base.mk @@ -0,0 +1,4 @@ +CC = cc +CFLAGS = \ + -Wall -Wextra -Werror -Wpedantic -pipe \ + -O3 -flto -march=native -mtune=native diff --git a/c/cat/.gitignore b/c/cat/.gitignore new file mode 100644 index 0000000..ef07ddc --- /dev/null +++ b/c/cat/.gitignore @@ -0,0 +1 @@ +cat diff --git a/c/cat/Makefile b/c/cat/Makefile new file mode 100644 index 0000000..081ffd4 --- /dev/null +++ b/c/cat/Makefile @@ -0,0 +1,8 @@ +include ../base.mk + +all: cat +cat: cat.c + $(CC) $(CFLAGS) -o $@ $< + +clean: + rm -f cat diff --git a/c/cat/cat.c b/c/cat/cat.c new file mode 100644 index 0000000..7aaaa6b --- /dev/null +++ b/c/cat/cat.c @@ -0,0 +1,102 @@ +#include <sys/sendfile.h> +#include <sys/stat.h> + +#include <err.h> +#include <fcntl.h> +#include <stdbool.h> +#include <stddef.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <sys/types.h> +#include <unistd.h> + +#define warn(...) \ + do { \ + warn(__VA_ARGS__); \ + rv = EXIT_FAILURE; \ + } while (0) + +static int rv = EXIT_SUCCESS; +static bool out_is_reg; +static char buf[BUFSIZ]; + +static void cat(const char *); +static void cat_sendfile(const char *, int, size_t); +static void cat_readwrite(const char *, int); + +int +main(int argc, char **argv) +{ + struct stat sb; + + if (fstat(STDOUT_FILENO, &sb) == -1) + warn("fstat: /dev/stdout"); + else + out_is_reg = S_ISREG(sb.st_mode); + + if (argc == 1) + cat("-"); + for (int i = 1; i < argc; i++) + cat(argv[i]); + return rv; +} + +void +cat(const char *file) +{ + int fd; + struct stat sb; + + if (strcmp(file, "-") == 0) + fd = STDIN_FILENO; + else if ((fd = open(file, O_RDONLY)) == -1) { + warn("open: %s", file); + return; + } + + if (fstat(fd, &sb) == -1) { + warn("fstat: %s", file); + goto out; + } + + if (S_ISREG(sb.st_mode) && out_is_reg) + cat_sendfile(file, fd, sb.st_size); + else + cat_readwrite(file, fd); + +out: + close(fd); +} + +void +cat_sendfile(const char *file, int fd, size_t n) +{ + off_t off = 0; + ssize_t nw; + + do { + nw = sendfile(STDOUT_FILENO, fd, &off, n); + off += nw; + } while (nw != -1 && (size_t)off < n); + + if (nw == -1) + warn("sendfile: %s", file); +} + +void +cat_readwrite(const char *file, int fd) +{ + ssize_t nr, nw; + + while ((nr = read(fd, buf, BUFSIZ)) > 0) { + for (ssize_t off = 0; nr > 0; nr -= nw, off += nw) { + if ((nw = write(STDOUT_FILENO, buf + off, nr)) == -1) { + warn("write: %s", file); + return; + } + } + } + if (nr == -1) + warn("read: %s", file); +} diff --git a/c/sigfd/.gitignore b/c/sigfd/.gitignore new file mode 100644 index 0000000..067fa65 --- /dev/null +++ b/c/sigfd/.gitignore @@ -0,0 +1 @@ +sigfd diff --git a/c/sigfd/Makefile b/c/sigfd/Makefile new file mode 100644 index 0000000..f126000 --- /dev/null +++ b/c/sigfd/Makefile @@ -0,0 +1,8 @@ +include ../base.mk + +all: sigfd +sigfd: main.c + $(CC) $(CFLAGS) -o $@ $< + +clean: + rm -f sigfd diff --git a/c/sigfd/main.c b/c/sigfd/main.c new file mode 100644 index 0000000..6721f60 --- /dev/null +++ b/c/sigfd/main.c @@ -0,0 +1,42 @@ +#include <sys/poll.h> +#include <sys/signalfd.h> + +#include <err.h> +#include <poll.h> +#include <signal.h> +#include <stdio.h> +#include <stdlib.h> +#include <unistd.h> + +#define die(...) err(EXIT_FAILURE, __VA_ARGS__) +#define lengthof(a) (sizeof(a) / sizeof(*(a))) + +static char buf[4096]; + +int +main(void) +{ + sigset_t set; + sigemptyset(&set); + sigaddset(&set, SIGINT); + sigaddset(&set, SIGQUIT); + sigprocmask(SIG_BLOCK, &set, NULL); + + int fd = signalfd(-1, &set, 0); + if (fd == -1) + die("signalfd"); + + struct pollfd fds[] = { + {.fd = fd, .events = POLL_IN}, + }; + for (;;) { + if (poll(fds, lengthof(fds), -1) == -1) + die("poll"); + if (fds[0].revents & POLL_IN) { + fputs("Caught signal!\n", stderr); + read(fds[0].fd, buf, sizeof(buf)); + } + } + + return EXIT_SUCCESS; +} diff --git a/c/timer/.gitignore b/c/timer/.gitignore new file mode 100644 index 0000000..fe84f2c --- /dev/null +++ b/c/timer/.gitignore @@ -0,0 +1 @@ +timer diff --git a/c/timer/Makefile b/c/timer/Makefile new file mode 100644 index 0000000..410dc79 --- /dev/null +++ b/c/timer/Makefile @@ -0,0 +1,11 @@ +include ../base.mk + +CFLAGS := $(CFLAGS) $(shell pkg-config --cflags libnotify) -D_ISOC99_SOURCE +LDLIBS = $(shell pkg-config --libs libnotify) + +all: timer +timer: main.c + $(CC) $(CFLAGS) $(LDLIBS) -o $@ $< + +clean: + rm -f timer diff --git a/c/timer/main.c b/c/timer/main.c new file mode 100644 index 0000000..751cbca --- /dev/null +++ b/c/timer/main.c @@ -0,0 +1,48 @@ +#include <err.h> +#include <errno.h> +#include <stdio.h> +#include <stdlib.h> +#include <unistd.h> + +#include <libnotify/notify.h> + +#define die(...) err(EXIT_FAILURE, __VA_ARGS__) +#define diex(...) errx(EXIT_FAILURE, __VA_ARGS__) + +static char buf[128]; + +int +main(int argc, char **argv) +{ + char *endptr; + long secs; + + if (argc != 3) { + fprintf(stderr, "Usage: %s secs body\n", argv[0]); + exit(EXIT_FAILURE); + } + + errno = 0; + secs = strtol(argv[1], &endptr, 10); + if (errno) + die("strtol: %s", argv[1]); + if (endptr == argv[1] || *endptr) + diex("Invalid integer: %s", argv[1]); + + snprintf(buf, sizeof(buf), "%ld Second%s Elapsed", secs, + secs == 1 ? "" : "s"); + + notify_init("TIMER"); + NotifyNotification *n = + notify_notification_new(buf, argv[2], "dialog-information"); + + notify_notification_set_timeout(n, 5000); + while ((secs = sleep(secs))) + sleep(secs); + if (!notify_notification_show(n, NULL)) + diex("Failed to send notification"); + + g_object_unref(G_OBJECT(n)); + notify_uninit(); + return EXIT_SUCCESS; +} diff --git a/elixir/aoc/01/input b/elixir/aoc/01/input new file mode 100644 index 0000000..ff8b32b --- /dev/null +++ b/elixir/aoc/01/input @@ -0,0 +1,2244 @@ +2832 +2108 +3082 +4328 +6843 +5121 +2869 +1366 +2358 +1680 +4980 +1161 + +8026 +2154 +4242 +1023 +2744 +3162 +4093 +1150 +5397 +2738 +5657 + +10954 +11208 +8034 +1636 +9430 +9421 +5025 + +3837 +5938 +3967 +2942 +2727 +3623 +4070 +1748 +1795 +1687 +4023 +6068 +2558 +2570 +4214 + +9679 +2986 +5168 +16463 + +5912 +6008 +1259 +5378 +10740 +1642 +2617 +7821 + +3840 +5265 +2104 +1510 +5477 +2636 +5920 +5939 +5430 +4482 +5603 +4915 +5416 +5897 + +3932 +9344 +7536 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+1232 +4036 +2156 +3203 +3959 +4643 +4045 +2097 +5726 +3509 +3801 + +1530 +5956 +5236 +6895 +2136 +8084 +1550 +6776 +1042 +5389 +4815 + +1479 +2337 +5443 +5880 +8131 +9774 +4225 +5564 + +9111 +3248 +5761 +8147 +3285 +11468 diff --git a/elixir/aoc/01/main.exs b/elixir/aoc/01/main.exs new file mode 100644 index 0000000..e46450d --- /dev/null +++ b/elixir/aoc/01/main.exs @@ -0,0 +1,12 @@ +{ _, data } = File.read "input" + +xs = String.split(data, "\n\n") +|> Enum.map(fn x -> + String.split(x) + |> Enum.reduce(0, &(&2 + elem(Integer.parse(&1), 0))) +end) + +IO.puts Enum.max(xs) +IO.puts Enum.sort(xs, :desc) +|> Enum.take(3) +|> Enum.sum diff --git a/go/read-unix-sock/read-unix-sock.go b/go/read-unix-sock/read-unix-sock.go new file mode 100644 index 0000000..2b09126 --- /dev/null +++ b/go/read-unix-sock/read-unix-sock.go @@ -0,0 +1,30 @@ +package main + +import ( + "errors" + "fmt" + "io" + "io/fs" + "net" + "os" +) + +func main() { + info, _ := os.Stat(os.Args[1]) + if info.Mode().Type() != fs.ModeSocket { + fmt.Fprintln(os.Stderr, "File is not a socket") + os.Exit(1) + } + + c, _ := net.Dial("unix", os.Args[1]) + defer c.Close() + + buf := make([]byte, 1024) + for { + n, err := c.Read(buf) + if errors.Is(err, io.EOF) { + return + } + fmt.Print(string(buf[:n])) + } +} diff --git a/m4/ifdef/ifdef.m4 b/m4/ifdef/ifdef.m4 new file mode 100644 index 0000000..3bc397e --- /dev/null +++ b/m4/ifdef/ifdef.m4 @@ -0,0 +1,19 @@ +m4_dnl Execute this file with ‘m4 -P ifdef.m4 -’ +m4_changequote([,])m4_dnl +m4_dnl +This file has an implementation of ‘__ifdef’ and ‘__endif’ macros. The two +macros act like the ‘#ifdef’ and ‘#endif’ macros from cpp(1). The usage looks +as follows: + +__ifdef(`foo') +This is some text +and some more text +__ifdef(`bar') +This is also some +text on two lines +__endif + +TODO: Add __elifdef()? + +m4_define([__endif], [m4_divert(0)m4_dnl])m4_dnl +m4_define([__ifdef], [m4_ifdef([$1], [__endif], [m4_divert(-1)])])m4_dnl diff --git a/sed/bf2c/bf2c.sed b/sed/bf2c/bf2c.sed new file mode 100755 index 0000000..787be25 --- /dev/null +++ b/sed/bf2c/bf2c.sed @@ -0,0 +1,27 @@ +#!/usr/bin/sed -f + +1i\ +#include <err.h>\ +#include <stdint.h>\ +#include <stdio.h>\ +#include <stdlib.h>\ +int \ +main(void)\ +{\ + uint8_t *p = calloc(16384, 1);\ + if (!p) \ + err(EXIT_FAILURE, "calloc"); + +/./!d + +s/[^][+<>.,-]//g +s/\[[-+]\]/*p = 0;/g +s/[-+]/(*p)&&;/g +s/</p--;/g +s/>/p++;/g +s/\./putchar(*p);/g +s/,/*p = (uint8_t)getchar();/g +s/\[/while (*p) {/g +s/\]/}/g + +$a} diff --git a/sed/bf2c/test.bf b/sed/bf2c/test.bf new file mode 100644 index 0000000..c19c44c --- /dev/null +++ b/sed/bf2c/test.bf @@ -0,0 +1,709 @@ +>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> +>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>[-]>>>>>>>>>>>>>>>>>>>>>>>>>>>> +>>>>>>>>>>>>>[-]>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>[-]>>>>>>>>>>>>>>>> +>>>>>>>>>>>>>>>>>>>>>>>>>[-]>[-]+++++++++++++++++++++++++++.++++++++++++++++ +++++++++++++++++++++++++++++++++++++++++++++++++.-------------------.------- +--------------------------------------.+++++++++++++++++++++++++++++++++++++ ++++++++++++++++++++++++++++.-----------------------------------------.++++++ +++++++++++++++++++.[-]+++++++++++++++++++++++++++.++++++++++++++++++++++++++ +++++++++++++++++++++++++++++++++++++++.------------------------------------- +----.+++++++++.---------.+++++.+++++++++++++++++.++++++++++++.++++++++++++++ ++++++++++++++.++++++++.------------------.+++++++++++++.+.------------------ +-----------------------------------------------------------------.++++++++++ ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++.------ +---.----------------------------------------------------------------------.+ ++++++++++++++++++++++++++++++++++++++++.+++++++++++++++++++++++++.++++++++++ ++++.+.------.--------------------------------------------------------------- +----------.+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ +++++++++.+++++.------------------------------------------------------------- +-----------------.++++++++++++++++++++++++++++++++++.+++++++++++++++++++++++ ++++++++++++++++++++++++++.-----------------.++++++++.+++++.--------.-------- +----------------------------------------------------.+++++++++++++++++++++++ +++++++++++++++++++++++++++++++++++.++++++++.[-]+++++++++++++++++++++++++++.+ ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++.------------ +----------------------------.++++++++.----------.++++.+++++++++++++++++++.++ ++++++++++++++.+++++++++++++++++++++++++++.---------.+++++++++++..----------- +----.+++++++++.------------------------------------------------------------- +-----------------.++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ +++++++++.+++++++++++++++++++++++.------------------------------------------- +----------------------------------------------.+++++++++++++++++++++++++++++ +++++++.+++++++++++++++++++++++++++++++++++++++++.---.---..+++++++++.+++.---- +----------.----------------------------------------------------------------- +---.+++++++++++++++++++++++++++++++++++++++++++++++++++++++.++++++++++++++++ +++++++++.---.------.-------------------------------------------------------- +--------------.++++++++++++++++++++++++++++.++++++++++++++++++++++++++++++++ +++++++++++++.++++++++++++..----.-------------------------------------------- +----------.-----------..++++++++++++++++++++++++++++++++++++++++++++++++++++ +++++++++++++++++++++...----------------------------------------------------- +--------------------.+++++++++++++++++++++++++++++++++++++++++++++++++++++.+ +++++++++.---.---..+++++++++.+++.--------------.----------------------------- +-------------------------.++++++++++++++++++++++++++++++++++++++++++++++++++ ++.+++++++++++++++++++.------------------------------------------------------ +---------------.+++++++++++++++++++++++++++++++++++++++++++++++++++.++++.--- +.+++++++++++++.+++++.------------------------------------------------------- +---------------.+++++++++++++++.[-]>[-]+++++++++>[-]+++>>[-]>[-]<<<<<[->>>>> ++<<<<<]>>>>>[-<+<<<<+>>>>>][-]++++++++++<<[-]>>>[-]>[-]<<<[->>>+<<<]>>>[[-<< +<+>>>]>[-]<<<[->>>+<<<]>>>[[-<<<+>>>]<<[-]+>>]<]<[<<->->[-]>[-]<<<[->>>+<<<] +>>>[[-<<<+>>>]>[-]<<<[->>>+<<<]>>>[[-<<<+>>>]<<[-]+>>]<]<][-]<<[->>+<<]>>[[- +<<+>>]<<<[-]+>>>][-]<[->+<]>[[-<+>]<<<[-]+>>>]<<<[>[-]++++++++++++++++++++++ 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+>>>]<<<[<<<<<<<<--------->>+>>>>>>>[-]++++++++>[-]>[-]<<<<<<<<<<<[->>>>>>>>> +>>+<<<<<<<<<<<]>>>>>>>>>>>[-<+<<<<<<<<<<+>>>>>>>>>>>]<<<[-]>>>[-]>[-]<<<[->> +>+<<<]>>>[[-<<<+>>>]>[-]<<<[->>>+<<<]>>>[[-<<<+>>>]<<[-]+>>]<]<[<<->->[-]>[- +]<<<[->>>+<<<]>>>[[-<<<+>>>]>[-]<<<[->>>+<<<]>>>[[-<<<+>>>]<<[-]+>>]<]<][-]< +[->+<]>[[-<+>]<<<[-]+>>>]<<<]>[-]++>[-]>[-]<<<<<<<<<<<[->>>>>>>>>>>+<<<<<<<< +<<<]>>>>>>>>>>>[-<+<<<<<<<<<<+>>>>>>>>>>>]<<<[-]>>>[-]>[-]<<<[->>>+<<<]>>>[[ +-<<<+>>>]>[-]<<<[->>>+<<<]>>>[[-<<<+>>>]<<[-]+>>]<]<[<<->->[-]>[-]<<<[->>>+< +<<]>>>[[-<<<+>>>]>[-]<<<[->>>+<<<]>>>[[-<<<+>>>]<<[-]+>>]<]<][-]<[->+<]>[[-< ++>]<<<[-]+>>>]<<<[<<<<<<<<--->+>>>>>>>>[-]++>[-]>[-]<<<<<<<<<<<[->>>>>>>>>>> ++<<<<<<<<<<<]>>>>>>>>>>>[-<+<<<<<<<<<<+>>>>>>>>>>>]<<<[-]>>>[-]>[-]<<<[->>>+ +<<<]>>>[[-<<<+>>>]>[-]<<<[->>>+<<<]>>>[[-<<<+>>>]<<[-]+>>]<]<[<<->->[-]>[-]< +<<[->>>+<<<]>>>[[-<<<+>>>]>[-]<<<[->>>+<<<]>>>[[-<<<+>>>]<<[-]+>>]<]<][-]<[- +>+<]>[[-<+>]<<<[-]+>>>]<<<]<<<<+>>>]<<]>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> diff --git a/sed/dc/README b/sed/dc/README new file mode 100644 index 0000000..80653ab --- /dev/null +++ b/sed/dc/README @@ -0,0 +1 @@ +This is not my code. I just think it’s really cool. diff --git a/sed/dc/dc.sed b/sed/dc/dc.sed new file mode 100755 index 0000000..0835ec0 --- /dev/null +++ b/sed/dc/dc.sed @@ -0,0 +1,328 @@ +#!/bin/sed -nf +# dc.sed - an arbitrary precision RPN calculator +# Created by Greg Ubben <gsu@romulus.ncsc.mil> early 1995, late 1996 +# +# Dedicated to MAC's memory of the IBM 1620 ("CADET") computer. +# @(#)GSU dc.sed 1.1 06-Mar-1999 [non-explanatory] +# +# Examples: +# sqrt(2) to 10 digits: echo "10k 2vp" | dc.sed +# 20 factorial: echo "[d1-d1<!*]s! 20l!xp" | dc.sed +# sin(ln(7)): echo "s(l(7))" | bc -c /usr/lib/lib.b | dc.sed +# hex to base 60: echo "60o16i 6B407.CAFE p" | dc.sed +# tests most of dc.sed: echo 16oAk2vp | dc.sed +# +# To debug or analyze, give the dc Y command as input or add it to +# embedded dc routines, or add the sed p command to the beginning of +# the main loop or at various points in the low-level sed routines. +# If you need to allow [|~] characters in the input, filter this +# script through "tr '|~' '\36\37'" first (or use dc.pl). +# +# Not implemented: ! \ +# But implemented: K Y t # !< !> != fractional-bases +# SunOS limits: 199/199 commands (though could pack in 10-20 more) +# Limitations: scale <= 999; |obase| >= 1; input digits in [0..F] +# Completed: 1am Feb 4, 1997 + +s/^/|P|K0|I10|O10|?~/ + +:next +s/|?./|?/ +s/|?#[ -}]*/|?/ +/|?!*[lLsS;:<>=]\{0,1\}$/ N +/|?!*[-+*/%^<>=]/ b binop +/^|.*|?[dpPfQXZvxkiosStT;:]/ b binop +/|?[_0-9A-F.]/ b number +/|?\[/ b string +/|?l/ b load +/|?L/ b Load +/|?[sS]/ b save +/|?c/ s/[^|]*// +/|?d/ s/[^~]*~/&&/ +/|?f/ s//&[pSbz0<aLb]dSaxsaLa/ +/|?x/ s/\([^~]*~\)\(.*|?x\)~*/\2\1/ +/|?[KIO]/ s/.*|\([KIO]\)\([^|]*\).*|?\1/\2~&/ +/|?T/ s/\.*0*~/~/ +# a slow, non-stackable array implementation in dc, just for completeness +# A fast, stackable, associative array implementation could be done in sed +# (format: {key}value{key}value...), but would be longer, like load & save. +/|?;/ s/|?;\([^{}]\)/|?~[s}s{L{s}q]S}[S}l\1L}1-d0>}s\1L\1l{xS\1]dS{xL}/ +/|?:/ s/|?:\([^{}]\)/|?~[s}L{s}L{s}L}s\1q]S}S}S{[L}1-d0>}S}l\1s\1L\1l{xS\1]dS{x/ +/|?[ ~ cdfxKIOT]/ b next +/|?\n/ b next +/|?[pP]/ b print +/|?k/ s/^\([0-9]\{1,3\}\)\([.~].*|K\)[^|]*/\2\1/ +/|?i/ s/^\(-\{0,1\}[0-9]*\.\{0,1\}[0-9]\{1,\}\)\(~.*|I\)[^|]*/\2\1/ +/|?o/ s/^\(-\{0,1\}[1-9][0-9]*\.\{0,1\}[0-9]*\)\(~.*|O\)[^|]*/\2\1/ +/|?[kio]/ b pop +/|?t/ b trunc +/|??/ b input +/|?Q/ b break +/|?q/ b quit +h +/|?[XZz]/ b count +/|?v/ b sqrt +s/.*|?\([^Y]\).*/\1 is unimplemented/ +s/\n/\\n/g +l +g +b next + +:print +/^-\{0,1\}[0-9]*\.\{0,1\}[0-9]\{1,\}~.*|?p/ !b Print +/|O10|/ b Print + +# Print a number in a non-decimal output base. Uses registers a,b,c,d. +# Handles fractional output bases (O<-1 or O>=1), unlike other dc's. +# Converts the fraction correctly on negative output bases, unlike +# UNIX dc. Also scales the fraction more accurately than UNIX dc. +# +s,|?p,&KSa0kd[[-]Psa0la-]Sad0>a[0P]sad0=a[A*2+]saOtd0>a1-ZSd[[[[ ]P]sclb1\ +!=cSbLdlbtZ[[[-]P0lb-sb]sclb0>c1+]sclb0!<c[0P1+dld>c]scdld>cscSdLbP]q]Sb\ +[t[1P1-d0<c]scd0<c]ScO_1>bO1!<cO[16]<bOX0<b[[q]sc[dSbdA>c[A]sbdA=c[B]sbd\ +B=c[C]sbdC=c[D]sbdD=c[E]sbdE=c[F]sb]xscLbP]~Sd[dtdZOZ+k1O/Tdsb[.5]*[.1]O\ +X^*dZkdXK-1+ktsc0kdSb-[Lbdlb*lc+tdSbO*-lb0!=aldx]dsaxLbsb]sad1!>a[[.]POX\ ++sb1[SbO*dtdldx-LbO*dZlb!<a]dsax]sadXd0<asbsasaLasbLbscLcsdLdsdLdLak[]pP, +b next + +:Print +/|?p/ s/[^~]*/&\ +~&/ +s/\(.*|P\)\([^|]*\)/\ +\2\1/ +s/\([^~]*\)\n\([^~]*\)\(.*|P\)/\1\3\2/ +h +s/~.*// +/./ { + s/.// + p +} +# Just s/.//p would work if we knew we were running under the -n option. +# Using l vs p would kind of do \ continuations, but would break strings. +g + +:pop +s/[^~]*~// +b next + +:load +s/\(.*|?.\)\(.\)/\20~\1/ +s/^\(.\)0\(.*|r\1\([^~|]*\)~\)/\1\3\2/ +s/.// +b next + +:Load +s/\(.*|?.\)\(.\)/\2\1/ +s/^\(.\)\(.*|r\1\)\([^~|]*~\)/|\3\2/ +/^|/ !i\ +register empty +s/.// +b next + +:save +s/\(.*|?.\)\(.\)/\2\1/ +/^\(.\).*|r\1/ !s/\(.\).*|/&r\1|/ +/|?S/ s/\(.\).*|r\1/&~/ +s/\(.\)\([^~]*~\)\(.*|r\1\)[^~|]*~\{0,1\}/\3\2/ +b next + +:quit +t quit +s/|?[^~]*~[^~]*~/|?q/ +t next +# Really should be using the -n option to avoid printing a final newline. +s/.*|P\([^|]*\).*/\1/ +q + +:break +s/[0-9]*/&;987654321009;/ +:break1 +s/^\([^;]*\)\([1-9]\)\(0*\)\([^1]*\2\(.\)[^;]*\3\(9*\).*|?.\)[^~]*~/\1\5\6\4/ +t break1 +b pop + +:input +N +s/|??\(.*\)\(\n.*\)/|?\2~\1/ +b next + +:count +/|?Z/ s/~.*// +/^-\{0,1\}[0-9]*\.\{0,1\}[0-9]\{1,\}$/ s/[-.0]*\([^.]*\)\.*/\1/ +/|?X/ s/-*[0-9A-F]*\.*\([0-9A-F]*\).*/\1/ +s/|.*// +/~/ s/[^~]//g + +s/./a/g +:count1 +s/a\{10\}/b/g +s/b*a*/&a9876543210;/ +s/a.\{9\}\(.\).*;/\1/ +y/b/a/ +/a/ b count1 +G +/|?z/ s/\n/&~/ +s/\n[^~]*// +b next + +:trunc +# for efficiency, doesn't pad with 0s, so 10k 2 5/ returns just .40 +# The X* here and in a couple other places works around a SunOS 4.x sed bug. +s/\([^.~]*\.*\)\(.*|K\([^|]*\)\)/\3;9876543210009909:\1,\2/ +:trunc1 +s/^\([^;]*\)\([1-9]\)\(0*\)\([^1]*\2\(.\)[^:]*X*\3\(9*\)[^,]*\),\([0-9]\)/\1\5\6\4\7,/ +t trunc1 +s/[^:]*:\([^,]*\)[^~]*/\1/ +b normal + +:number +s/\(.*|?\)\(_\{0,1\}[0-9A-F]*\.\{0,1\}[0-9A-F]*\)/\2~\1~/ +s/^_/-/ +/^[^A-F~]*~.*|I10|/ b normal +/^[-0.]*~/ b normal +s:\([^.~]*\)\.*\([^~]*\):[Ilb^lbk/,\1\2~0A1B2C3D4E5F1=11223344556677889900;.\2: +:digit +s/^\([^,]*\),\(-*\)\([0-F]\)\([^;]*\(.\)\3[^1;]*\(1*\)\)/*+\1\2\6\5~,\2\4/ +t digit +s:...\([^/]*.\)\([^,]*\)[^.]*\(.*|?.\):\2\3KSb[99]k\1]SaSaXSbLalb0<aLakLbktLbk: +b next + +:string +/|?[^]]*$/ N +s/\(|?[^]]*\)\[\([^]]*\)]/\1|{\2|}/ +/|?\[/ b string +s/\(.*|?\)|{\(.*\)|}/\2~\1[/ +s/|{/[/g +s/|}/]/g +b next + +:binop +/^[^~|]*~[^|]/ !i\ +stack empty +// !b next +/^-\{0,1\}[0-9]*\.\{0,1\}[0-9]\{1,\}~/ !s/[^~]*\(.*|?!*[^!=<>]\)/0\1/ +/^[^~]*~-\{0,1\}[0-9]*\.\{0,1\}[0-9]\{1,\}~/ !s/~[^~]*\(.*|?!*[^!=<>]\)/~0\1/ +h +/|?\*/ b mul +/|?\// b div +/|?%/ b rem +/|?^/ b exp + +/|?[+-]/ s/^\(-*\)\([^~]*~\)\(-*\)\([^~]*~\).*|?\(-\{0,1\}\).*/\2\4s\3o\1\3\5/ +s/\([^.~]*\)\([^~]*~[^.~]*\)\(.*\)/<\1,\2,\3|=-~.0,123456789<></ +/^<\([^,]*,[^~]*\)\.*0*~\1\.*0*~/ s/</=/ +:cmp1 +s/^\(<[^,]*\)\([0-9]\),\([^,]*\)\([0-9]\),/\1,\2\3,\4/ +t cmp1 +/^<\([^~]*\)\([^~]\)[^~]*~\1\(.\).*|=.*\3.*\2/ s/</>/ +/|?/ { + s/^\([<>]\)\(-[^~]*~-.*\1\)\(.\)/\3\2/ + s/^\(.\)\(.*|?!*\)\1/\2!\1/ + s/|?![^!]\(.\)/&l\1x/ + s/[^~]*~[^~]*~\(.*|?\)!*.\(.*\)|=.*/\1\2/ + b next +} +s/\(-*\)\1|=.*/;9876543210;9876543210/ +/o-/ s/;9876543210/;0123456789/ +s/^>\([^~]*~\)\([^~]*~\)s\(-*\)\(-*o\3\(-*\)\)/>\2\1s\5\4/ + +s/,\([0-9]*\)\.*\([^,]*\),\([0-9]*\)\.*\([0-9]*\)/\1,\2\3.,\4;0/ +:right1 +s/,\([0-9]\)\([^,]*\),;*\([0-9]\)\([0-9]*\);*0*/\1,\2\3,\4;0/ +t right1 +s/.\([^,]*\),~\(.*\);0~s\(-*\)o-*/\1~\30\2~/ + +:addsub1 +s/\(.\{0,1\}\)\(~[^,]*\)\([0-9]\)\(\.*\),\([^;]*\)\(;\([^;]*\(\3[^;]*\)\).*X*\1\(.*\)\)/\2,\4\5\9\8\7\6/ +s/,\([^~]*~\).\{10\}\(.\)[^;]\{0,9\}\([^;]\{0,1\}\)[^;]*/,\2\1\3/ +# could be done in one s/// if we could have >9 back-refs... +/^~.*~;/ !b addsub1 + +:endbin +s/.\([^,]*\),\([0-9.]*\).*/\1\2/ +G +s/\n[^~]*~[^~]*// + +:normal +s/^\(-*\)0*\([0-9.]*[0-9]\)[^~]*/\1\2/ +s/^[^1-9~]*~/0~/ +b next + +:mul +s/\(-*\)\([0-9]*\)\.*\([0-9]*\)~\(-*\)\([0-9]*\)\.*\([0-9]*\).*|K\([^|]*\).*/\1\4\2\5.!\3\6,|\2<\3~\5>\6:\7;9876543210009909/ + +:mul1 +s/![0-9]\([^<]*\)<\([0-9]\{0,1\}\)\([^>]*\)>\([0-9]\{0,1\}\)/0!\1\2<\3\4>/ +/![0-9]/ s/\(:[^;]*\)\([1-9]\)\(0*\)\([^0]*\2\(.\).*X*\3\(9*\)\)/\1\5\6\4/ +/<~[^>]*>:0*;/ !t mul1 + +s/\(-*\)\1\([^>]*\).*/;\2^>:9876543210aaaaaaaaa/ + +:mul2 +s/\([0-9]~*\)^/^\1/ +s/<\([0-9]*\)\(.*[~^]\)\([0-9]*\)>/\1<\2>\3/ + +:mul3 +s/>\([0-9]\)\(.*\1.\{9\}\(a*\)\)/\1>\2;9\38\37\36\35\34\33\32\31\30/ +s/\(;[^<]*\)\([0-9]\)<\([^;]*\).*\2[0-9]*\(.*\)/\4\1<\2\3/ +s/a[0-9]/a/g +s/a\{10\}/b/g +s/b\{10\}/c/g +/|0*[1-9][^>]*>0*[1-9]/ b mul3 + +s/;/a9876543210;/ +s/a.\{9\}\(.\)[^;]*\([^,]*\)[0-9]\([.!]*\),/\2,\1\3/ +y/cb/ba/ +/|<^/ !b mul2 +b endbin + +:div +# CDDET +/^[-.0]*[1-9]/ !i\ +divide by 0 +// !b pop +s/\(-*\)\([0-9]*\)\.*\([^~]*~-*\)\([0-9]*\)\.*\([^~]*\)/\2.\3\1;0\4.\5;0/ +:div1 +s/^\.0\([^.]*\)\.;*\([0-9]\)\([0-9]*\);*0*/.\1\2.\3;0/ +s/^\([^.]*\)\([0-9]\)\.\([^;]*;\)0*\([0-9]*\)\([0-9]\)\./\1.\2\30\4.\5/ +t div1 +s/~\(-*\)\1\(-*\);0*\([^;]*[0-9]\)[^~]*/~123456789743222111~\2\3/ +s/\(.\(.\)[^~]*\)[^9]*\2.\{8\}\(.\)[^~]*/\3~\1/ +s,|?.,&SaSadSaKdlaZ+LaX-1+[sb1]Sbd1>bkLatsbLa[dSa2lbla*-*dLa!=a]dSaxsakLasbLb*t, +b next + +:rem +s,|?%,&Sadla/LaKSa[999]k*Lak-, +b next + +:exp +# This decimal method is just a little faster than the binary method done +# totally in dc: 1LaKLb [kdSb*LbK]Sb [[.5]*d0ktdSa<bkd*KLad1<a]Sa d1<a kk* +/^[^~]*\./ i\ +fraction in exponent ignored +s,[^-0-9].*,;9d**dd*8*d*d7dd**d*6d**d5d*d*4*d3d*2lbd**1lb*0, +:exp1 +s/\([0-9]\);\(.*\1\([d*]*\)[^l]*\([^*]*\)\(\**\)\)/;dd*d**d*\4\3\5\2/ +t exp1 +G +s,-*.\{9\}\([^9]*\)[^0]*0.\(.*|?.\),\2~saSaKdsaLb0kLbkK*+k1\1LaktsbkLax, +s,|?.,&SadSbdXSaZla-SbKLaLadSb[0Lb-d1lb-*d+K+0kkSb[1Lb/]q]Sa0>a[dk]sadK<a[Lb], +b next + +:sqrt +# first square root using sed: 8k2v at 1:30am Dec 17, 1996 +/^-/ i\ +square root of negative number +/^[-0]/ b next +s/~.*// +/^\./ s/0\([0-9]\)/\1/g +/^\./ !s/[0-9][0-9]/7/g +G +s/\n/~/ +s,|?.,&K1+k KSbSb[dk]SadXdK<asadlb/lb+[.5]*[sbdlb/lb+[.5]*dlb>a]dsaxsasaLbsaLatLbk K1-kt, +b next + +# END OF GSU dc.sed + +### colorized by sedsed, a debugger and code formatter for sed scripts +### original script: http://sed.sf.net/grabbag/scripts/dc.sed |