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Annotation of src/usr.bin/window/cmd7.c, Revision 1.6

1.6     ! david       1: /*     $OpenBSD: cmd7.c,v 1.5 2003/06/03 02:56:23 millert Exp $        */
1.1       deraadt     2: /*     $NetBSD: cmd7.c,v 1.3 1995/09/28 10:34:12 tls Exp $     */
                      3:
                      4: /*
                      5:  * Copyright (c) 1983, 1993
                      6:  *     The Regents of the University of California.  All rights reserved.
                      7:  *
                      8:  * This code is derived from software contributed to Berkeley by
                      9:  * Edward Wang at The University of California, Berkeley.
                     10:  *
                     11:  * Redistribution and use in source and binary forms, with or without
                     12:  * modification, are permitted provided that the following conditions
                     13:  * are met:
                     14:  * 1. Redistributions of source code must retain the above copyright
                     15:  *    notice, this list of conditions and the following disclaimer.
                     16:  * 2. Redistributions in binary form must reproduce the above copyright
                     17:  *    notice, this list of conditions and the following disclaimer in the
                     18:  *    documentation and/or other materials provided with the distribution.
1.5       millert    19:  * 3. Neither the name of the University nor the names of its contributors
1.1       deraadt    20:  *    may be used to endorse or promote products derived from this software
                     21:  *    without specific prior written permission.
                     22:  *
                     23:  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
                     24:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
                     25:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
                     26:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
                     27:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
                     28:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
                     29:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
                     30:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
                     31:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
                     32:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
                     33:  * SUCH DAMAGE.
                     34:  */
                     35:
                     36: #ifndef lint
                     37: #if 0
                     38: static char sccsid[] = "@(#)cmd7.c     8.1 (Berkeley) 6/6/93";
                     39: #else
1.6     ! david      40: static char rcsid[] = "$OpenBSD: cmd7.c,v 1.5 2003/06/03 02:56:23 millert Exp $";
1.1       deraadt    41: #endif
                     42: #endif /* not lint */
                     43:
                     44: #include "defs.h"
                     45: #include "string.h"
1.6     ! david      46:
        !            47: #include <sys/types.h>
        !            48: #include <unistd.h>
1.1       deraadt    49:
                     50: /*
                     51:  * Window size.
                     52:  */
                     53:
                     54: c_size(w)
1.4       mpech      55: struct ww *w;
1.1       deraadt    56: {
                     57:        int col, row;
                     58:
                     59:        if (!terse)
                     60:                wwputs("New window size (lower right corner): ", cmdwin);
                     61:        col = MIN(w->ww_w.r, wwncol) - 1;
                     62:        row = MIN(w->ww_w.b, wwnrow) - 1;
                     63:        wwadd(boxwin, framewin->ww_back);
                     64:        for (;;) {
                     65:                wwbox(boxwin, w->ww_w.t - 1, w->ww_w.l - 1,
                     66:                        row - w->ww_w.t + 3, col - w->ww_w.l + 3);
                     67:                wwsetcursor(row, col);
                     68:                while (wwpeekc() < 0)
                     69:                        wwiomux();
                     70:                switch (getpos(&row, &col, w->ww_w.t, w->ww_w.l,
                     71:                        wwnrow - 1, wwncol - 1)) {
                     72:                case 3:
                     73:                        wwunbox(boxwin);
                     74:                        wwdelete(boxwin);
                     75:                        return;
                     76:                case 2:
                     77:                        wwunbox(boxwin);
                     78:                        break;
                     79:                case 1:
                     80:                        wwunbox(boxwin);
                     81:                case 0:
                     82:                        continue;
                     83:                }
                     84:                break;
                     85:        }
                     86:        wwdelete(boxwin);
                     87:        if (!terse)
                     88:                wwputc('\n', cmdwin);
                     89:        wwcurtowin(cmdwin);
                     90:        sizewin(w, row - w->ww_w.t + 1, col - w->ww_w.l + 1);
                     91: }
                     92:
                     93: /*
                     94:  * Yank and put
                     95:  */
                     96:
                     97: struct yb {
                     98:        char *line;
                     99:        int length;
                    100:        struct yb *link;
                    101: };
                    102: struct yb *yb_head, *yb_tail;
                    103:
                    104: c_yank()
                    105: {
                    106:        struct ww *w = selwin;
                    107:        int col1, row1;
                    108:        int col2, row2;
                    109:        int r, c;
                    110:
                    111:        if (!terse)
                    112:                wwputs("Yank starting position: ", cmdwin);
                    113:        wwcursor(w, 0);
                    114:        row1 = w->ww_cur.r;
                    115:        col1 = w->ww_cur.c;
                    116:        for (;;) {
                    117:                wwsetcursor(row1, col1);
                    118:                while (wwpeekc() < 0)
                    119:                        wwiomux();
                    120:                switch (getpos(&row1, &col1, w->ww_i.t, w->ww_i.l,
                    121:                               w->ww_i.b - 1, w->ww_i.r - 1)) {
                    122:                case 3:
                    123:                        goto out;
                    124:                case 2:
                    125:                        break;
                    126:                case 1:
                    127:                case 0:
                    128:                        continue;
                    129:                }
                    130:                break;
                    131:        }
                    132:        if (!terse)
                    133:                wwputs("\nYank ending position: ", cmdwin);
                    134:        row2 = row1;
                    135:        col2 = col1;
                    136:        for (;;) {
                    137:                wwsetcursor(row2, col2);
                    138:                while (wwpeekc() < 0)
                    139:                        wwiomux();
                    140:                r = row2;
                    141:                c = col2;
                    142:                switch (getpos(&row2, &col2, w->ww_i.t, w->ww_i.l,
                    143:                               w->ww_i.b - 1, w->ww_i.r - 1)) {
                    144:                case 3:
                    145:                        yank_highlight(row1, col1, r, c);
                    146:                        goto out;
                    147:                case 2:
                    148:                        break;
                    149:                case 1:
                    150:                        yank_highlight(row1, col1, r, c);
                    151:                        yank_highlight(row1, col1, row2, col2);
                    152:                case 0:
                    153:                        continue;
                    154:                }
                    155:                break;
                    156:        }
                    157:        if (row2 < row1 || row2 == row1 && col2 < col1) {
                    158:                r = row1;
                    159:                c = col1;
                    160:                row1 = row2;
                    161:                col1 = col2;
                    162:                row2 = r;
                    163:                col2 = c;
                    164:        }
                    165:        unyank();
                    166:        c = col1;
                    167:        for (r = row1; r < row2; r++) {
                    168:                yank_line(r, c, w->ww_b.r);
                    169:                c = w->ww_b.l;
                    170:        }
                    171:        yank_line(r, c, col2);
                    172:        yank_highlight(row1, col1, row2, col2);
                    173:        if (!terse)
                    174:                wwputc('\n', cmdwin);
                    175: out:
                    176:        wwcursor(w, 1);
                    177: }
                    178:
                    179: yank_highlight(row1, col1, row2, col2)
                    180: {
                    181:        struct ww *w = selwin;
                    182:        int r, c;
                    183:
                    184:        if ((wwavailmodes & WWM_REV) == 0)
                    185:                return;
                    186:        if (row2 < row1 || row2 == row1 && col2 < col1) {
                    187:                r = row1;
                    188:                c = col1;
                    189:                row1 = row2;
                    190:                col1 = col2;
                    191:                row2 = r;
                    192:                col2 = c;
                    193:        }
                    194:        c = col1;
                    195:        for (r = row1; r < row2; r++) {
                    196:                yank_highlight_line(r, c, w->ww_b.r);
                    197:                c = w->ww_b.l;
                    198:        }
                    199:        yank_highlight_line(r, c, col2);
                    200: }
                    201:
                    202: yank_highlight_line(r, c, cend)
                    203: {
                    204:        struct ww *w = selwin;
                    205:        char *win;
                    206:
                    207:        if (r < w->ww_i.t || r >= w->ww_i.b)
                    208:                return;
                    209:        if (c < w->ww_i.l)
                    210:                c = w->ww_i.l;
                    211:        if (cend >= w->ww_i.r)
                    212:                cend = w->ww_i.r;
                    213:        for (win = w->ww_win[r] + c; c < cend; c++, win++) {
                    214:                *win ^= WWM_REV;
                    215:                if (wwsmap[r][c] == w->ww_index) {
                    216:                        if (*win == 0)
                    217:                                w->ww_nvis[r]++;
                    218:                        else if (*win == WWM_REV)
                    219:                                w->ww_nvis[r]--;
                    220:                        wwns[r][c].c_m ^= WWM_REV;
                    221:                        wwtouched[r] |= WWU_TOUCHED;
                    222:                }
                    223:        }
                    224: }
                    225:
                    226: unyank()
                    227: {
                    228:        struct yb *yp, *yq;
                    229:
                    230:        for (yp = yb_head; yp; yp = yq) {
                    231:                yq = yp->link;
                    232:                str_free(yp->line);
                    233:                free((char *) yp);
                    234:        }
                    235:        yb_head = yb_tail = 0;
                    236: }
                    237:
                    238: yank_line(r, c, cend)
                    239: {
                    240:        struct yb *yp;
                    241:        int nl = 0;
                    242:        int n;
                    243:        union ww_char *bp;
                    244:        char *cp;
                    245:
                    246:        if (c == cend)
                    247:                return;
                    248:        if ((yp = (struct yb *) malloc(sizeof *yp)) == 0)
                    249:                return;
                    250:        yp->link = 0;
                    251:        nl = cend == selwin->ww_b.r;
                    252:        bp = selwin->ww_buf[r];
                    253:        for (cend--; cend >= c; cend--)
                    254:                if (bp[cend].c_c != ' ')
                    255:                        break;
                    256:        yp->length = n = cend - c + 1;
                    257:        if (nl)
                    258:                yp->length++;
                    259:        yp->line = str_alloc(yp->length + 1);
                    260:        for (bp += c, cp = yp->line; --n >= 0;)
                    261:                *cp++ = bp++->c_c;
                    262:        if (nl)
                    263:                *cp++ = '\n';
                    264:        *cp = 0;
                    265:        if (yb_head)
                    266:                yb_tail = yb_tail->link = yp;
                    267:        else
                    268:                yb_head = yb_tail = yp;
                    269: }
                    270:
                    271: c_put()
                    272: {
                    273:        struct yb *yp;
                    274:
                    275:        for (yp = yb_head; yp; yp = yp->link)
                    276:                (void) write(selwin->ww_pty, yp->line, yp->length);
                    277: }