sbase

suckless unix tools
git clone git://git.2f30.org/sbase.git
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commit 19e8c4515872711d11e271ddd5a775f80f907877
parent a6308d52be0d26e35fc1bd40256961393f23ab3d
Author: Robert Ransom <rransom.8774@gmail.com>
Date:   Mon May 21 22:05:09 +0000

mc: Initial commit
Diffstat:
Makefile | 1+
mc.c | 83+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
2 files changed, 84 insertions(+), 0 deletions(-)
diff --git a/Makefile b/Makefile @@ -37,6 +37,7 @@ SRC = \ kill.c \ ln.c \ ls.c \ + mc.c \ mkdir.c \ mkfifo.c \ mv.c \ diff --git a/mc.c b/mc.c @@ -0,0 +1,83 @@ +/* See LICENSE file for copyright and license details. */ +#include <assert.h> +#include <stdbool.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <unistd.h> +#include "text.h" +#include "util.h" + +static long chars = 65; +static struct linebuf b = EMPTY_LINEBUF; + +static long n_columns; +static long n_rows; + +int +main(int argc, char *argv[]) +{ + int c; + long i, l, col; + size_t maxlen = 0; + char *space; + FILE *fp; + + while ((c = getopt(argc, argv, "c:")) != -1) + switch (c) { + case 'c': + chars = estrtol(optarg, 0); + if (chars < 3) + eprintf("%d: too few character columns"); + break; + default: + exit(2); + } + + /* XXX librarify this chunk, too? only useful in sponges though */ + if(optind == argc) + getlines(stdin, &b); + else for(; optind < argc; optind++) { + if(!(fp = fopen(argv[optind], "r"))) + eprintf("fopen %s:", argv[optind]); + getlines(fp, &b); + fclose(fp); + } + + for(l = 0; l < b.nlines; ++l) { + size_t len = strlen(b.lines[l]); + if(len > 0 && b.lines[l][len-1] == '\n') + b.lines[l][--len] = '\0'; + if(len > maxlen) + maxlen = len; + if(maxlen > (chars - 1) / 2) + break; + } + + n_columns = (chars + 1) / (maxlen + 1); + if(n_columns <= 1) { + for(l = 0; l < b.nlines; ++l) { + fputs(b.lines[l], stdout); + } + return EXIT_SUCCESS; + } + + if(!(space = malloc(maxlen + 2))) + eprintf("malloc:"); + memset(space, ' ', maxlen + 1); + space[maxlen + 1] = '\0'; + + n_rows = (b.nlines + (n_columns - 1)) / n_columns; + for(i = 0; i < n_rows; ++i) { + for(l = i, col = 1; l < b.nlines; l += n_rows, ++col) { + /*sprintf(b.lines[l], "%ld,%ld$", i, col);*/ + fputs(b.lines[l], stdout); + if(col < n_columns) + fputs(space + strlen(b.lines[l]), stdout); + } + fputs("\n", stdout); + } + + return EXIT_SUCCESS; +} +