Organize files into directories

1 files changed, 0 insertions, 492 deletions

diff --git a/grab.c b/grab.c
deleted file mode 100644
index 96b5d9f..0000000
--- a/grab.c
+++ /dev/null
@@ -1,492 +0,0 @@
-#include <err.h>
-#include <getopt.h>
-#include <libgen.h>
-#include <limits.h>
-#include <locale.h>
-#include <regex.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <unistd.h>
-#if !GRAB_IS_C23
-#	include <assert.h>
-#	include <stdbool.h>
-#	define nullptr NULL
-#endif
-
-#include "da.h"
-
-#ifndef REG_STARTEND
-#	error "REG_STARTEND not defined"
-#endif
-
-#define die(...)  err(EXIT_FAILURE, __VA_ARGS__);
-#define diex(...) errx(EXIT_FAILURE, __VA_ARGS__);
-#define warn(...) \
-	do { \
-		warn(__VA_ARGS__); \
-		rv = EXIT_FAILURE; \
-	} while (0)
-#define streq(a, b) (!strcmp(a, b))
-
-#define EEARLY "Input string terminated prematurely"
-
-struct op {
-	char c;
-	regex_t pat;
-};
-
-struct ops {
-	struct op *buf;
-	size_t len, cap;
-};
-
-struct chars {
-	char *buf;
-	size_t len, cap;
-};
-
-struct sv {
-	char *p;
-	size_t len;
-};
-
-typedef unsigned char uchar;
-typedef void (*cmd_func)(struct sv, struct ops, size_t, const char *);
-
-static void cmdg(struct sv, struct ops, size_t, const char *);
-static void cmdx(struct sv, struct ops, size_t, const char *);
-static void cmdy(struct sv, struct ops, size_t, const char *);
-
-static void grab(struct ops, FILE *, const char *);
-static void putm(struct sv, const char *);
-static regex_t mkregex(char *, size_t);
-static struct ops comppat(char *);
-static char *env_or_default(const char *, const char *);
-#if GIT_GRAB
-static FILE *getfstream(int n, char *v[n]);
-#endif
-
-static bool xisspace(char);
-static char *xstrchrnul(const char *, char);
-
-static int filecnt, rv;
-static bool color, nflag, zflag;
-static bool fflag =
-#if GIT_GRAB
-	true;
-#else
-	false;
-#endif
-
-static const cmd_func op_table[UCHAR_MAX] = {
-	['g'] = cmdg,
-	['v'] = cmdg,
-	['x'] = cmdx,
-	['y'] = cmdy,
-};
-
-static const char esc_table[UCHAR_MAX] = {
-	['\\'] = '\\', ['a'] = '\a', ['b'] = '\b', ['f'] = '\f',
-	['n'] = '\n',  ['r'] = '\r', ['t'] = '\t', ['v'] = '\v',
-};
-
-static void
-usage(const char *s)
-{
-	fprintf(stderr,
-#if GIT_GRAB
-	        "Usage: %s [-nz] pattern [glob ...]\n"
-#else
-	        "Usage: %s [-fnz] pattern [file ...]\n"
-#endif
-	        "       %s -h\n",
-	        s, s);
-	exit(EXIT_FAILURE);
-}
-
-int
-main(int argc, char **argv)
-{
-	int opt;
-	struct ops ops;
-	struct option longopts[] = {
-		{"filenames", no_argument, 0, 'f'},
-		{"help",      no_argument, 0, 'h'},
-		{"newline",   no_argument, 0, 'n'},
-		{"zero",      no_argument, 0, 'z'},
-	};
-
-#if GIT_GRAB
-	char *entry = NULL;
-	size_t len;
-	ssize_t nr;
-	FILE *flist;
-	const char *opts = "hnz";
-#else
-	const char *opts = "fhnz";
-#endif
-
-	argv[0] = basename(argv[0]);
-	if (argc < 2)
-		usage(argv[0]);
-
-	setlocale(LC_ALL, "");
-
-	while ((opt = getopt_long(argc, argv, opts, longopts, nullptr)) != -1) {
-		switch (opt) {
-#if !GIT_GRAB
-		case 'f':
-			fflag = true;
-			break;
-#endif
-		case 'h':
-			execlp("man", "man", "1", argv[0], nullptr);
-			die("execlp: man 1 %s", argv[0]);
-		case 'n':
-			nflag = true;
-			break;
-		case 'z':
-			zflag = true;
-			break;
-		default:
-			usage(argv[0]);
-		}
-	}
-
-	argc -= optind;
-	argv += optind;
-	filecnt = argc - 1;
-
-	if (isatty(STDOUT_FILENO) == 1 && !env_or_default("NO_COLOR", nullptr))
-		color = !streq(env_or_default("TERM", ""), "dumb");
-
-	ops = comppat(argv[0]);
-
-#if GIT_GRAB
-	if ((flist = getfstream(argc - 1, argv + 1)) == nullptr)
-		die("getfstream");
-	while ((nr = getdelim(&entry, &len, '\0', flist)) > 0) {
-		FILE *fp;
-
-		if ((fp = fopen(entry, "r")) == nullptr)
-			warn("fopen: %s", entry);
-		else {
-			grab(ops, fp, entry);
-			fclose(fp);
-		}
-	}
-	if (ferror(flist))
-		warn("getdelim");
-#else
-	if (argc == 1)
-		grab(ops, stdin, "-");
-	else {
-		for (int i = 1; i < argc; i++) {
-			FILE *fp;
-
-			if (streq(argv[i], "-")) {
-				grab(ops, stdin, "-");
-			} else if ((fp = fopen(argv[i], "r")) == nullptr) {
-				warn("fopen: %s", argv[i]);
-			} else {
-				grab(ops, fp, argv[i]);
-				fclose(fp);
-			}
-		}
-	}
-#endif
-
-#ifdef GRAB_DEBUG
-	for (size_t i = 0; i < ops.len; i++)
-		regfree(&ops.buf[i].pat);
-	free(ops.buf);
-#endif
-
-	return rv;
-}
-
-struct ops
-comppat(char *s)
-{
-#define skip_ws(p) for (; *(p) && xisspace(*(p)); (p)++)
-	struct ops ops;
-
-	da_init(&ops, 8);
-	skip_ws(s);
-	if (!*s)
-		diex(EEARLY);
-
-	do {
-		char delim;
-		char *p;
-		struct op op;
-
-		op.c = *s;
-		if (!op_table[(uchar)op.c])
-			diex("Invalid operator ‘%c’", *s);
-		if (!(delim = *++s))
-			diex(EEARLY);
-
-		p = ++s;
-		s = xstrchrnul(s, delim);
-		op.pat = mkregex(p, s - p);
-		da_append(&ops, op);
-
-		if (*s)
-			s++;
-		skip_ws(s);
-	} while (*s && *(s + 1));
-
-	return ops;
-#undef skip_ws
-}
-
-void
-grab(struct ops ops, FILE *stream, const char *filename)
-{
-	size_t n;
-	struct chars chars = {0};
-
-	do {
-		static_assert(sizeof(char) == 1, "sizeof(char) != 1; wtf?");
-		chars.cap += BUFSIZ;
-		if ((chars.buf = realloc(chars.buf, chars.cap)) == nullptr)
-			die("realloc");
-		chars.len += n = fread(chars.buf + chars.len, 1, BUFSIZ, stream);
-	} while (n == BUFSIZ);
-
-	if (ferror(stream))
-		warn("fread: %s", filename);
-	else {
-		struct sv sv = {
-			.p = chars.buf,
-			.len = chars.len,
-		};
-		op_table[(uchar)ops.buf[0].c](sv, ops, 0, filename);
-	}
-
-	free(chars.buf);
-}
-
-void
-cmdg(struct sv sv, struct ops ops, size_t i, const char *filename)
-{
-	int r;
-	regmatch_t pm = {
-		.rm_so = 0,
-		.rm_eo = sv.len,
-	};
-	struct op op = ops.buf[i];
-
-	r = regexec(&op.pat, sv.p, 1, &pm, REG_STARTEND);
-	if ((r == REG_NOMATCH && op.c == 'g') || (r != REG_NOMATCH && op.c == 'v'))
-		return;
-
-	if (i + 1 == ops.len)
-		putm(sv, filename);
-	else
-		op_table[(uchar)ops.buf[i + 1].c](sv, ops, i + 1, filename);
-}
-
-void
-cmdx(struct sv sv, struct ops ops, size_t i, const char *filename)
-{
-	regmatch_t pm = {
-		.rm_so = 0,
-		.rm_eo = sv.len,
-	};
-	struct op op = ops.buf[i];
-
-	do {
-		struct sv nsv;
-
-		if (regexec(&op.pat, sv.p, 1, &pm, REG_STARTEND) == REG_NOMATCH)
-			break;
-		nsv = (struct sv){.p = sv.p + pm.rm_so, .len = pm.rm_eo - pm.rm_so};
-		if (i + 1 == ops.len)
-			putm(nsv, filename);
-		else
-			op_table[(uchar)ops.buf[i + 1].c](nsv, ops, i + 1, filename);
-
-		if (pm.rm_so == pm.rm_eo)
-			pm.rm_eo++;
-		pm = (regmatch_t){
-			.rm_so = pm.rm_eo,
-			.rm_eo = sv.len,
-		};
-	} while (pm.rm_so < pm.rm_eo);
-}
-
-void
-cmdy(struct sv sv, struct ops ops, size_t i, const char *filename)
-{
-	regmatch_t pm = {
-		.rm_so = 0,
-		.rm_eo = sv.len,
-	};
-	regmatch_t prev = {
-		.rm_so = 0,
-		.rm_eo = 0,
-	};
-	struct op op = ops.buf[i];
-
-	do {
-		struct sv nsv;
-
-		if (regexec(&op.pat, sv.p, 1, &pm, REG_STARTEND) == REG_NOMATCH)
-			break;
-
-		if (prev.rm_so || prev.rm_eo || pm.rm_so) {
-			nsv = (struct sv){
-				.p = sv.p + prev.rm_eo,
-				.len = pm.rm_so - prev.rm_eo,
-			};
-			if (i + 1 == ops.len)
-				putm(nsv, filename);
-			else
-				op_table[(uchar)ops.buf[i + 1].c](nsv, ops, i + 1, filename);
-		}
-
-		prev = pm;
-		if (pm.rm_so == pm.rm_eo)
-			pm.rm_eo++;
-		pm = (regmatch_t){
-			.rm_so = pm.rm_eo,
-			.rm_eo = sv.len,
-		};
-	} while (pm.rm_so < pm.rm_eo);
-
-	if (prev.rm_eo < pm.rm_eo) {
-		struct sv nsv = {
-			.p = sv.p + pm.rm_so,
-			.len = pm.rm_eo - pm.rm_so,
-		};
-		if (i + 1 == ops.len)
-			putm(nsv, filename);
-		else
-			op_table[(uchar)ops.buf[i + 1].c](nsv, ops, i + 1, filename);
-	}
-}
-
-void
-putm(struct sv sv, const char *filename)
-{
-	static const char *fnc, *sepc;
-
-	if (!fnc) {
-		fnc = env_or_default("GRAB_COLOR_FNAME", "35");
-		sepc = env_or_default("GRAB_COLOR_SEP", "36");
-	}
-
-	if (fflag || filecnt > 1) {
-		if (color) {
-			printf("\33[%sm%s\33[%sm%c\33[0m", fnc, filename, sepc,
-			       zflag ? '\0' : ':');
-		} else
-			printf("%s%c", filename, zflag ? '\0' : ':');
-	}
-	fwrite(sv.p, 1, sv.len, stdout);
-	putchar(zflag ? '\0' : '\n');
-}
-
-regex_t
-mkregex(char *s, size_t n)
-{
-	char c = s[n];
-	int ret, cflags;
-	regex_t r;
-
-	for (size_t i = 0; i < n - 1; i++) {
-		if (s[i] == '\\') {
-			char c = esc_table[(uchar)s[i + 1]];
-			if (c) {
-				for (size_t j = i; j < n - 1; j++)
-					s[j] = s[j + 1];
-				s[i] = c;
-				n--;
-			}
-		}
-	}
-
-	s[n] = 0;
-	cflags = REG_EXTENDED;
-	if (nflag)
-		cflags |= REG_NEWLINE;
-	if ((ret = regcomp(&r, s, cflags)) != 0) {
-		char emsg[128];
-		regerror(ret, &r, emsg, sizeof(emsg));
-		diex("Failed to compile regex: %s", emsg);
-	}
-	s[n] = c;
-
-	return r;
-}
-
-#if GIT_GRAB
-FILE *
-getfstream(int argc, char *argv[argc])
-{
-	pid_t pid;
-	int fds[2];
-	enum {
-		FD_R,
-		FD_W,
-	};
-
-	if (pipe(fds) == -1)
-		die("pipe");
-
-	switch (pid = fork()) {
-	case -1:
-		die("fork");
-	case 0:;
-		size_t len = argc + 5;
-		char **args;
-
-		close(fds[FD_R]);
-		if (dup2(fds[FD_W], STDOUT_FILENO) == -1)
-			die("dup2");
-
-		if (!(args = malloc(len * sizeof(char *))))
-			die("malloc");
-		args[0] = "git";
-		args[1] = "ls-files";
-		args[2] = "-z";
-		args[3] = "--";
-		memcpy(args + 4, argv, argc * sizeof(char *));
-		args[len - 1] = nullptr;
-
-		execvp("git", args);
-		die("execvp: git ls-files -z");
-	}
-
-	close(fds[FD_W]);
-	return fdopen(fds[FD_R], "r");
-}
-#endif
-
-char *
-env_or_default(const char *e, const char *d)
-{
-	const char *s = getenv(e);
-	return (char *)(s && *s ? s : d);
-}
-
-bool
-xisspace(char c)
-{
-	return c == ' ' || c == '\t' || c == '\n';
-}
-
-char *
-xstrchrnul(const char *s, char c)
-{
-	for (; *s; s++) {
-		if (*s == '\\')
-			s++;
-		else if (*s == c)
-			break;
-	}
-	return (char *)s;
-}