Add support for multibyte characters.
This commit is contained in:
Tim J. Robbins
parent
32494fa097
commit
5480f12049
@ -32,7 +32,7 @@
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.\" @(#)column.1 8.1 (Berkeley) 6/6/93
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.\" $FreeBSD$
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.\"
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.Dd July 15, 2004
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.Dd July 29, 2004
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.Os
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.Dt COLUMN 1
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.Sh NAME
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@ -77,13 +77,14 @@ Fill columns before filling rows.
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.Sh DIAGNOSTICS
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.Ex -std
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.Sh ENVIRONMENT
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.Bl -tag -width COLUMNS
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.It Ev COLUMNS
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The environment variable
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.Ev COLUMNS
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is used to determine the size of
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the screen if no other information is available.
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.El
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The
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.Ev COLUMNS , LANG , LC_ALL
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and
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.Ev LC_CTYPE
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environment variables affect the execution of
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.Nm
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as described in
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.Xr environ 7 .
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.Sh EXAMPLES
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.Dl (printf \&"PERM LINKS OWNER GROUP SIZE MONTH DAY \&"\ \&;\ \&\e
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.Dl printf \&"HH:MM/YEAR NAME\en\&"\ \&;\ \&\e
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@ -100,4 +101,3 @@ command appeared in
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.Bx 4.3 Reno .
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.Sh BUGS
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Input lines are limited to LINE_MAX (2048) bytes in length.
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Multibyte characters are not handled correctly.
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@ -49,13 +49,15 @@ __FBSDID("$FreeBSD$");
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#include <sys/types.h>
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#include <sys/ioctl.h>
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#include <ctype.h>
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#include <err.h>
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#include <limits.h>
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#include <locale.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include <wchar.h>
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#include <wctype.h>
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#define TAB 8
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@ -65,14 +67,15 @@ void maketbl(void);
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void print(void);
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void r_columnate(void);
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void usage(void);
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int width(const wchar_t *);
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int termwidth = 80; /* default terminal width */
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int entries; /* number of records */
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int eval; /* exit value */
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int maxlength; /* longest record */
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char **list; /* array of pointers to records */
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const char *separator = "\t "; /* field separator for table option */
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wchar_t **list; /* array of pointers to records */
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const wchar_t *separator = L"\t "; /* field separator for table option */
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int
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main(int argc, char **argv)
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@ -81,6 +84,11 @@ main(int argc, char **argv)
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FILE *fp;
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int ch, tflag, xflag;
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char *p;
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const char *src;
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wchar_t *newsep;
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size_t seplen;
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setlocale(LC_ALL, "");
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if (ioctl(1, TIOCGWINSZ, &win) == -1 || !win.ws_col) {
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if ((p = getenv("COLUMNS")))
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@ -95,7 +103,15 @@ main(int argc, char **argv)
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termwidth = atoi(optarg);
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break;
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case 's':
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separator = optarg;
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src = optarg;
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seplen = mbsrtowcs(NULL, &src, 0, NULL);
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if (seplen == (size_t)-1)
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err(1, "bad separator");
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newsep = malloc((seplen + 1) * sizeof(wchar_t));
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if (newsep == NULL)
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err(1, NULL);
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mbsrtowcs(newsep, &src, seplen + 1, NULL);
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separator = newsep;
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break;
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case 't':
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tflag = 1;
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@ -140,28 +156,29 @@ void
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c_columnate(void)
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{
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int chcnt, col, cnt, endcol, numcols;
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char **lp;
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wchar_t **lp;
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numcols = termwidth / maxlength;
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endcol = maxlength;
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for (chcnt = col = 0, lp = list;; ++lp) {
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chcnt += printf("%s", *lp);
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wprintf(L"%ls", *lp);
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chcnt += width(*lp);
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if (!--entries)
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break;
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if (++col == numcols) {
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chcnt = col = 0;
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endcol = maxlength;
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putchar('\n');
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putwchar('\n');
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} else {
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while ((cnt = ((chcnt + TAB) & ~(TAB - 1))) <= endcol) {
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(void)putchar('\t');
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(void)putwchar('\t');
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chcnt = cnt;
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}
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endcol += maxlength;
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}
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}
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if (chcnt)
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putchar('\n');
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putwchar('\n');
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}
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void
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@ -177,16 +194,17 @@ r_columnate(void)
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for (row = 0; row < numrows; ++row) {
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endcol = maxlength;
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for (base = row, chcnt = col = 0; col < numcols; ++col) {
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chcnt += printf("%s", list[base]);
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wprintf(L"%ls", list[base]);
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chcnt += width(list[base]);
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if ((base += numrows) >= entries)
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break;
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while ((cnt = ((chcnt + TAB) & ~(TAB - 1))) <= endcol) {
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(void)putchar('\t');
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(void)putwchar('\t');
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chcnt = cnt;
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}
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endcol += maxlength;
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}
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putchar('\n');
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putwchar('\n');
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}
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}
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@ -194,14 +212,14 @@ void
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print(void)
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{
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int cnt;
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char **lp;
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wchar_t **lp;
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for (cnt = entries, lp = list; cnt--; ++lp)
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(void)printf("%s\n", *lp);
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(void)wprintf(L"%ls\n", *lp);
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}
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typedef struct _tbl {
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char **list;
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wchar_t **list;
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int cols, *len;
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} TBL;
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#define DEFCOLS 25
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@ -211,19 +229,21 @@ maketbl(void)
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{
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TBL *t;
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int coloff, cnt;
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char *p, **lp;
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wchar_t *p, **lp;
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int *lens, maxcols;
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TBL *tbl;
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char **cols;
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wchar_t **cols;
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wchar_t *last;
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if ((t = tbl = calloc(entries, sizeof(TBL))) == NULL)
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err(1, (char *)NULL);
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if ((cols = calloc((maxcols = DEFCOLS), sizeof(char *))) == NULL)
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if ((cols = calloc((maxcols = DEFCOLS), sizeof(*cols))) == NULL)
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err(1, (char *)NULL);
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if ((lens = calloc(maxcols, sizeof(int))) == NULL)
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err(1, (char *)NULL);
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for (cnt = 0, lp = list; cnt < entries; ++cnt, ++lp, ++t) {
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for (coloff = 0, p = *lp; (cols[coloff] = strtok(p, separator));
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for (coloff = 0, p = *lp;
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(cols[coloff] = wcstok(p, separator, &last));
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p = NULL)
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if (++coloff == maxcols) {
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if (!(cols = realloc(cols, (u_int)maxcols +
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@ -235,22 +255,22 @@ maketbl(void)
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0, DEFCOLS * sizeof(int));
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maxcols += DEFCOLS;
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}
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if ((t->list = calloc(coloff, sizeof(char *))) == NULL)
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if ((t->list = calloc(coloff, sizeof(*t->list))) == NULL)
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err(1, (char *)NULL);
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if ((t->len = calloc(coloff, sizeof(int))) == NULL)
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err(1, (char *)NULL);
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for (t->cols = coloff; --coloff >= 0;) {
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t->list[coloff] = cols[coloff];
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t->len[coloff] = strlen(cols[coloff]);
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t->len[coloff] = width(cols[coloff]);
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if (t->len[coloff] > lens[coloff])
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lens[coloff] = t->len[coloff];
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}
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}
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for (cnt = 0, t = tbl; cnt < entries; ++cnt, ++t) {
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for (coloff = 0; coloff < t->cols - 1; ++coloff)
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(void)printf("%s%*s", t->list[coloff],
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lens[coloff] - t->len[coloff] + 2, " ");
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(void)printf("%s\n", t->list[coloff]);
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(void)wprintf(L"%ls%*ls", t->list[coloff],
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lens[coloff] - t->len[coloff] + 2, L" ");
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(void)wprintf(L"%ls\n", t->list[coloff]);
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}
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}
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@ -262,35 +282,51 @@ input(FILE *fp)
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{
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static int maxentry;
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int len;
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char *p, buf[MAXLINELEN];
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wchar_t *p, buf[MAXLINELEN];
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if (!list)
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if ((list = calloc((maxentry = DEFNUM), sizeof(char *))) ==
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if ((list = calloc((maxentry = DEFNUM), sizeof(*list))) ==
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NULL)
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err(1, (char *)NULL);
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while (fgets(buf, MAXLINELEN, fp)) {
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for (p = buf; *p && isspace((unsigned char)*p); ++p);
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while (fgetws(buf, MAXLINELEN, fp)) {
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for (p = buf; *p && iswspace(*p); ++p);
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if (!*p)
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continue;
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if (!(p = strchr(p, '\n'))) {
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if (!(p = wcschr(p, L'\n'))) {
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warnx("line too long");
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eval = 1;
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continue;
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}
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*p = '\0';
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len = p - buf;
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*p = L'\0';
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len = width(buf);
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if (maxlength < len)
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maxlength = len;
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if (entries == maxentry) {
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maxentry += DEFNUM;
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if (!(list = realloc(list,
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(u_int)maxentry * sizeof(char *))))
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(u_int)maxentry * sizeof(*list))))
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err(1, NULL);
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}
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list[entries++] = strdup(buf);
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list[entries] = malloc((wcslen(buf) + 1) * sizeof(wchar_t));
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if (list[entries] == NULL)
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err(1, NULL);
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wcscpy(list[entries], buf);
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entries++;
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}
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}
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/* Like wcswidth(), but ignores non-printing characters. */
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int
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width(const wchar_t *wcs)
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{
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int w, cw;
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for (w = 0; *wcs != L'\0'; wcs++)
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if ((cw = wcwidth(*wcs)) > 0)
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w += cw;
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return (w);
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}
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void
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usage(void)
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{
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