| /* |
| * Copyright (c) 1980 Regents of the University of California. |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * 3. All advertising materials mentioning features or use of this software |
| * must display the following acknowledgement: |
| * This product includes software developed by the University of |
| * California, Berkeley and its contributors. |
| * 4. Neither the name of the University nor the names of its contributors |
| * may be used to endorse or promote products derived from this software |
| * without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND |
| * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE |
| * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
| * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
| * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
| * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| * SUCH DAMAGE. |
| */ |
| |
| /* |
| * 1999-02-22 Arkadiusz Mi¶kiewicz <misiek@pld.ORG.PL> |
| * added Native Language Support |
| * 1999-09-19 Bruno Haible <haible@clisp.cons.org> |
| * modified to work correctly in multi-byte locales |
| */ |
| |
| #include <stdio.h> |
| #include <stdlib.h> |
| |
| #include "nls.h" |
| #include "widechar.h" |
| |
| /* |
| COLRM removes unwanted columns from a file |
| Jeff Schriebman UC Berkeley 11-74 |
| */ |
| |
| int |
| main(int argc, char **argv) |
| { |
| register int ct, first, last; |
| register wint_t c; |
| int i, w; |
| int padding; |
| |
| setlocale(LC_ALL, ""); |
| |
| first = 0; |
| last = 0; |
| if (argc > 1) |
| first = atoi(*++argv); |
| if (argc > 2) |
| last = atoi(*++argv); |
| |
| start: |
| ct = 0; |
| loop1: |
| c = getwc(stdin); |
| if (c == WEOF) |
| goto fin; |
| if (c == '\t') |
| w = ((ct + 8) & ~7) - ct; |
| else if (c == '\b') |
| w = (ct ? ct - 1 : 0) - ct; |
| else { |
| w = wcwidth(c); |
| if (w < 0) |
| w = 0; |
| } |
| ct += w; |
| if (c == '\n') { |
| putwc(c, stdout); |
| goto start; |
| } |
| if (!first || ct < first) { |
| putwc(c, stdout); |
| goto loop1; |
| } |
| for (i = ct-w+1; i < first; i++) |
| putwc(' ', stdout); |
| |
| /* Loop getting rid of characters */ |
| while (!last || ct < last) { |
| c = getwc(stdin); |
| if (c == WEOF) |
| goto fin; |
| if (c == '\n') { |
| putwc(c, stdout); |
| goto start; |
| } |
| if (c == '\t') |
| ct = (ct + 8) & ~7; |
| else if (c == '\b') |
| ct = ct ? ct - 1 : 0; |
| else { |
| w = wcwidth(c); |
| if (w < 0) |
| w = 0; |
| ct += w; |
| } |
| } |
| |
| padding = 0; |
| |
| /* Output last of the line */ |
| for (;;) { |
| c = getwc(stdin); |
| if (c == WEOF) |
| break; |
| if (c == '\n') { |
| putwc(c, stdout); |
| goto start; |
| } |
| if (padding == 0 && last < ct) { |
| for (i = last; i <ct; i++) |
| putwc(' ', stdout); |
| padding = 1; |
| } |
| putwc(c, stdout); |
| } |
| fin: |
| fflush(stdout); |
| if (ferror(stdout) || fclose(stdout)) |
| return 1; |
| return 0; |
| } |