/* $Header: /p/tcsh/cvsroot/tcsh/ed.screen.c,v 3.78 2011/02/27 00:14:38 christos Exp $ */ /* * ed.screen.c: Editor/termcap-curses interface */ /*- * Copyright (c) 1980, 1991 The 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. 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. */ #include "sh.h" RCSID("$tcsh: ed.screen.c,v 3.78 2011/02/27 00:14:38 christos Exp $") #include "ed.h" #include "tc.h" #include "ed.defns.h" /* #define DEBUG_LITERAL */ /* * IMPORTANT NOTE: these routines are allowed to look at the current screen * and the current possition assuming that it is correct. If this is not * true, then the update will be WRONG! This is (should be) a valid * assumption... */ #define TC_BUFSIZE 2048 #define GoodStr(a) (tstr[a].str != NULL && tstr[a].str[0] != '\0') #define Str(a) tstr[a].str #define Val(a) tval[a].val static const struct { const char *b_name; speed_t b_rate; } baud_rate[] = { #ifdef B0 { "0", B0 }, #endif #ifdef B50 { "50", B50 }, #endif #ifdef B75 { "75", B75 }, #endif #ifdef B110 { "110", B110 }, #endif #ifdef B134 { "134", B134 }, #endif #ifdef B150 { "150", B150 }, #endif #ifdef B200 { "200", B200 }, #endif #ifdef B300 { "300", B300 }, #endif #ifdef B600 { "600", B600 }, #endif #ifdef B900 { "900", B900 }, #endif #ifdef B1200 { "1200", B1200 }, #endif #ifdef B1800 { "1800", B1800 }, #endif #ifdef B2400 { "2400", B2400 }, #endif #ifdef B3600 { "3600", B3600 }, #endif #ifdef B4800 { "4800", B4800 }, #endif #ifdef B7200 { "7200", B7200 }, #endif #ifdef B9600 { "9600", B9600 }, #endif #ifdef EXTA { "19200", EXTA }, #endif #ifdef B19200 { "19200", B19200 }, #endif #ifdef EXTB { "38400", EXTB }, #endif #ifdef B38400 { "38400", B38400 }, #endif { NULL, 0 } }; #define T_at7 0 #define T_al 1 #define T_bl 2 #define T_cd 3 #define T_ce 4 #define T_ch 5 #define T_cl 6 #define T_dc 7 #define T_dl 8 #define T_dm 9 #define T_ed 10 #define T_ei 11 #define T_fs 12 #define T_ho 13 #define T_ic 14 #define T_im 15 #define T_ip 16 #define T_kd 17 #define T_kh 18 #define T_kl 19 #define T_kr 20 #define T_ku 21 #define T_md 22 #define T_me 23 #define T_mr 24 #define T_nd 25 #define T_se 26 #define T_so 27 #define T_ts 28 #define T_up 29 #define T_us 30 #define T_ue 31 #define T_vb 32 #define T_DC 33 #define T_DO 34 #define T_IC 35 #define T_LE 36 #define T_RI 37 #define T_UP 38 #define T_str 39 static struct termcapstr { const char *name; const char *long_name; char *str; } tstr[T_str + 1]; #define T_am 0 #define T_pt 1 #define T_li 2 #define T_co 3 #define T_km 4 #define T_xn 5 #define T_val 6 static struct termcapval { const char *name; const char *long_name; int val; } tval[T_val + 1]; void terminit(void) { #ifdef NLS_CATALOGS int i; for (i = 0; i < T_str + 1; i++) xfree((ptr_t)(intptr_t)tstr[i].long_name); for (i = 0; i < T_val + 1; i++) xfree((ptr_t)(intptr_t)tval[i].long_name); #endif tstr[T_al].name = "al"; tstr[T_al].long_name = CSAVS(4, 1, "add new blank line"); tstr[T_bl].name = "bl"; tstr[T_bl].long_name = CSAVS(4, 2, "audible bell"); tstr[T_cd].name = "cd"; tstr[T_cd].long_name = CSAVS(4, 3, "clear to bottom"); tstr[T_ce].name = "ce"; tstr[T_ce].long_name = CSAVS(4, 4, "clear to end of line"); tstr[T_ch].name = "ch"; tstr[T_ch].long_name = CSAVS(4, 5, "cursor to horiz pos"); tstr[T_cl].name = "cl"; tstr[T_cl].long_name = CSAVS(4, 6, "clear screen"); tstr[T_dc].name = "dc"; tstr[T_dc].long_name = CSAVS(4, 7, "delete a character"); tstr[T_dl].name = "dl"; tstr[T_dl].long_name = CSAVS(4, 8, "delete a line"); tstr[T_dm].name = "dm"; tstr[T_dm].long_name = CSAVS(4, 9, "start delete mode"); tstr[T_ed].name = "ed"; tstr[T_ed].long_name = CSAVS(4, 10, "end delete mode"); tstr[T_ei].name = "ei"; tstr[T_ei].long_name = CSAVS(4, 11, "end insert mode"); tstr[T_fs].name = "fs"; tstr[T_fs].long_name = CSAVS(4, 12, "cursor from status line"); tstr[T_ho].name = "ho"; tstr[T_ho].long_name = CSAVS(4, 13, "home cursor"); tstr[T_ic].name = "ic"; tstr[T_ic].long_name = CSAVS(4, 14, "insert character"); tstr[T_im].name = "im"; tstr[T_im].long_name = CSAVS(4, 15, "start insert mode"); tstr[T_ip].name = "ip"; tstr[T_ip].long_name = CSAVS(4, 16, "insert padding"); tstr[T_kd].name = "kd"; tstr[T_kd].long_name = CSAVS(4, 17, "sends cursor down"); tstr[T_kl].name = "kl"; tstr[T_kl].long_name = CSAVS(4, 18, "sends cursor left"); tstr[T_kr].name = "kr"; tstr[T_kr].long_name = CSAVS(4, 19, "sends cursor right"); tstr[T_ku].name = "ku"; tstr[T_ku].long_name = CSAVS(4, 20, "sends cursor up"); tstr[T_md].name = "md"; tstr[T_md].long_name = CSAVS(4, 21, "begin bold"); tstr[T_me].name = "me"; tstr[T_me].long_name = CSAVS(4, 22, "end attributes"); tstr[T_nd].name = "nd"; tstr[T_nd].long_name = CSAVS(4, 23, "non destructive space"); tstr[T_se].name = "se"; tstr[T_se].long_name = CSAVS(4, 24, "end standout"); tstr[T_so].name = "so"; tstr[T_so].long_name = CSAVS(4, 25, "begin standout"); tstr[T_ts].name = "ts"; tstr[T_ts].long_name = CSAVS(4, 26, "cursor to status line"); tstr[T_up].name = "up"; tstr[T_up].long_name = CSAVS(4, 27, "cursor up one"); tstr[T_us].name = "us"; tstr[T_us].long_name = CSAVS(4, 28, "begin underline"); tstr[T_ue].name = "ue"; tstr[T_ue].long_name = CSAVS(4, 29, "end underline"); tstr[T_vb].name = "vb"; tstr[T_vb].long_name = CSAVS(4, 30, "visible bell"); tstr[T_DC].name = "DC"; tstr[T_DC].long_name = CSAVS(4, 31, "delete multiple chars"); tstr[T_DO].name = "DO"; tstr[T_DO].long_name = CSAVS(4, 32, "cursor down multiple"); tstr[T_IC].name = "IC"; tstr[T_IC].long_name = CSAVS(4, 33, "insert multiple chars"); tstr[T_LE].name = "LE"; tstr[T_LE].long_name = CSAVS(4, 34, "cursor left multiple"); tstr[T_RI].name = "RI"; tstr[T_RI].long_name = CSAVS(4, 35, "cursor right multiple"); tstr[T_UP].name = "UP"; tstr[T_UP].long_name = CSAVS(4, 36, "cursor up multiple"); tstr[T_kh].name = "kh"; tstr[T_kh].long_name = CSAVS(4, 43, "send cursor home"); tstr[T_at7].name = "@7"; tstr[T_at7].long_name = CSAVS(4, 44, "send cursor end"); tstr[T_mr].name = "mr"; tstr[T_mr].long_name = CSAVS(4, 45, "begin reverse video"); tstr[T_str].name = NULL; tstr[T_str].long_name = NULL; tval[T_am].name = "am"; tval[T_am].long_name = CSAVS(4, 37, "Has automatic margins"); tval[T_pt].name = "pt"; tval[T_pt].long_name = CSAVS(4, 38, "Can use physical tabs"); tval[T_li].name = "li"; tval[T_li].long_name = CSAVS(4, 39, "Number of lines"); tval[T_co].name = "co"; tval[T_co].long_name = CSAVS(4, 40, "Number of columns"); tval[T_km].name = "km"; tval[T_km].long_name = CSAVS(4, 41, "Has meta key"); tval[T_xn].name = "xn"; tval[T_xn].long_name = CSAVS(4, 42, "Newline ignored at right margin"); tval[T_val].name = NULL; tval[T_val].long_name = NULL; } /* * A very useful table from justin@crim.ca (Justin Bur) :-) * (Modified by per@erix.ericsson.se (Per Hedeland) * - first (and second:-) case fixed) * * Description Termcap variables tcsh behavior * am xn UseRightmost SendCRLF * -------------- ------- ------- ------------ ------------ * Automargins yes no yes no * Magic Margins yes yes yes no * No Wrap no -- yes yes */ static int me_all = 0; /* does two or more of the attributes use me */ static void ReBufferDisplay (void); static void TCset (struct termcapstr *, const char *); static void TCset(struct termcapstr *t, const char *cap) { if (cap == NULL || *cap == '\0') { xfree(t->str); t->str = NULL; } else { size_t size; size = strlen(cap) + 1; t->str = xrealloc(t->str, size); memcpy(t->str, cap, size); } } /*ARGSUSED*/ void TellTC(void) { struct termcapstr *t; char *first, *s; xprintf("%s", CGETS(7, 1, "\n\tTcsh thinks your terminal has the\n")); xprintf("%s", CGETS(7, 2, "\tfollowing characteristics:\n\n")); xprintf(CGETS(7, 3, "\tIt has %d columns and %d lines\n"), Val(T_co), Val(T_li)); s = strsave(T_HasMeta ? CGETS(7, 5, "a") : CGETS(7, 6, "no")); cleanup_push(s, xfree); first = s; xprintf(CGETS(7, 4, "\tIt has %s meta key\n"), s); s = strsave(T_Tabs ? "" : CGETS(7, 8, " not")); cleanup_push(s, xfree); xprintf(CGETS(7, 7, "\tIt can%s use tabs\n"), s); s = strsave((T_Margin&MARGIN_AUTO) ? CGETS(7, 10, "has") : CGETS(7, 11, "does not have")); cleanup_push(s, xfree); xprintf(CGETS(7, 9, "\tIt %s automatic margins\n"), s); if (T_Margin & MARGIN_AUTO) { s = strsave((T_Margin & MARGIN_MAGIC) ? CGETS(7, 10, "has") : CGETS(7, 11, "does not have")); cleanup_push(s, xfree); xprintf(CGETS(7, 12, "\tIt %s magic margins\n"), s); } for (t = tstr; t->name != NULL; t++) { s = strsave(t->str && *t->str ? t->str : CGETS(7, 13, "(empty)")); cleanup_push(s, xfree); xprintf("\t%36s (%s) == %s\n", t->long_name, t->name, s); cleanup_until(s); } xputchar('\n'); cleanup_until(first); } static void ReBufferDisplay(void) { int i; Char **b; b = Display; Display = NULL; blkfree(b); b = Vdisplay; Vdisplay = NULL; blkfree(b); TermH = Val(T_co); TermV = (INBUFSIZE * 4) / TermH + 1;/*FIXBUF*/ b = xmalloc(sizeof(*b) * (TermV + 1)); for (i = 0; i < TermV; i++) b[i] = xmalloc(sizeof(*b[i]) * (TermH + 1)); b[TermV] = NULL; Display = b; b = xmalloc(sizeof(*b) * (TermV + 1)); for (i = 0; i < TermV; i++) b[i] = xmalloc(sizeof(*b[i]) * (TermH + 1)); b[TermV] = NULL; Vdisplay = b; } void SetTC(char *what, char *how) { struct termcapstr *ts; struct termcapval *tv; /* * Do the strings first */ setname("settc"); for (ts = tstr; ts->name != NULL; ts++) if (strcmp(ts->name, what) == 0) break; if (ts->name != NULL) { TCset(ts, how); /* * Reset variables */ if (GoodStr(T_me) && GoodStr(T_ue)) me_all = (strcmp(Str(T_me), Str(T_ue)) == 0); else me_all = 0; if (GoodStr(T_me) && GoodStr(T_se)) me_all |= (strcmp(Str(T_me), Str(T_se)) == 0); T_CanCEOL = GoodStr(T_ce); T_CanDel = GoodStr(T_dc) || GoodStr(T_DC); T_CanIns = GoodStr(T_im) || GoodStr(T_ic) || GoodStr(T_IC); T_CanUP = GoodStr(T_up) || GoodStr(T_UP); return; } /* * Do the numeric ones second */ for (tv = tval; tv->name != NULL; tv++) if (strcmp(tv->name, what) == 0) break; if (tv->name != NULL) { if (tv == &tval[T_pt] || tv == &tval[T_km] || tv == &tval[T_am] || tv == &tval[T_xn]) { if (strcmp(how, "yes") == 0) tv->val = 1; else if (strcmp(how, "no") == 0) tv->val = 0; else { stderror(ERR_SETTCUS, tv->name); return; } T_Tabs = Val(T_pt); T_HasMeta = Val(T_km); T_Margin = Val(T_am) ? MARGIN_AUTO : 0; T_Margin |= Val(T_xn) ? MARGIN_MAGIC : 0; if (tv == &tval[T_am] || tv == &tval[T_xn]) ChangeSize(Val(T_li), Val(T_co)); return; } else { tv->val = atoi(how); T_Cols = (Char) Val(T_co); T_Lines = (Char) Val(T_li); if (tv == &tval[T_co] || tv == &tval[T_li]) ChangeSize(Val(T_li), Val(T_co)); return; } } stderror(ERR_NAME | ERR_TCCAP, what); return; } /* * Print the termcap string out with variable substitution */ void EchoTC(Char **v) { char *cap, *scap, *cv; int arg_need, arg_cols, arg_rows; int verbose = 0, silent = 0; char *area; static const char fmts[] = "%s\n", fmtd[] = "%d\n"; struct termcapstr *t; char buf[TC_BUFSIZE]; Char **globbed; area = buf; setname("echotc"); v = glob_all_or_error(v); globbed = v; cleanup_push(globbed, blk_cleanup); if (!*v || *v[0] == '\0') goto end; if (v[0][0] == '-') { switch (v[0][1]) { case 'v': verbose = 1; break; case 's': silent = 1; break; default: stderror(ERR_NAME | ERR_TCUSAGE); break; } v++; } if (!*v || *v[0] == '\0') goto end; cv = strsave(short2str(*v)); cleanup_push(cv, xfree); if (strcmp(cv, "tabs") == 0) { xprintf(fmts, T_Tabs ? CGETS(7, 14, "yes") : CGETS(7, 15, "no")); goto end_flush; } else if (strcmp(cv, "meta") == 0) { xprintf(fmts, Val(T_km) ? CGETS(7, 14, "yes") : CGETS(7, 15, "no")); goto end_flush; } else if (strcmp(cv, "xn") == 0) { xprintf(fmts, T_Margin & MARGIN_MAGIC ? CGETS(7, 14, "yes") : CGETS(7, 15, "no")); goto end_flush; } else if (strcmp(cv, "am") == 0) { xprintf(fmts, T_Margin & MARGIN_AUTO ? CGETS(7, 14, "yes") : CGETS(7, 15, "no")); goto end_flush; } else if (strcmp(cv, "baud") == 0) { int i; for (i = 0; baud_rate[i].b_name != NULL; i++) if (T_Speed == baud_rate[i].b_rate) { xprintf(fmts, baud_rate[i].b_name); goto end_flush; } xprintf(fmtd, 0); goto end_flush; } else if (strcmp(cv, "rows") == 0 || strcmp(cv, "lines") == 0 || strcmp(cv, "li") == 0) { xprintf(fmtd, Val(T_li)); goto end_flush; } else if (strcmp(cv, "cols") == 0 || strcmp(cv, "co") == 0) { xprintf(fmtd, Val(T_co)); goto end_flush; } /* * Try to use our local definition first */ scap = NULL; for (t = tstr; t->name != NULL; t++) if (strcmp(t->name, cv) == 0) { scap = t->str; break; } if (t->name == NULL) scap = tgetstr(cv, &area); if (!scap || scap[0] == '\0') { if (tgetflag(cv)) { xprintf("%s", CGETS(7, 14, "yes\n")); goto end; } if (silent) goto end; else stderror(ERR_NAME | ERR_TCCAP, cv); } /* * Count home many values we need for this capability. */ for (cap = scap, arg_need = 0; *cap; cap++) if (*cap == '%') switch (*++cap) { case 'd': case '2': case '3': case '.': case '+': arg_need++; break; case '%': case '>': case 'i': case 'r': case 'n': case 'B': case 'D': break; default: /* * hpux has lot's of them... */ if (verbose) stderror(ERR_NAME | ERR_TCPARM, *cap); /* This is bad, but I won't complain */ break; } switch (arg_need) { case 0: v++; if (*v && *v[0]) { if (silent) goto end; else stderror(ERR_NAME | ERR_TCARGS, cv, arg_need); } (void) tputs(scap, 1, PUTRAW); break; case 1: v++; if (!*v || *v[0] == '\0') stderror(ERR_NAME | ERR_TCNARGS, cv, 1); arg_cols = 0; arg_rows = atoi(short2str(*v)); v++; if (*v && *v[0]) { if (silent) goto end; else stderror(ERR_NAME | ERR_TCARGS, cv, arg_need); } (void) tputs(tgoto(scap, arg_cols, arg_rows), 1, PUTRAW); break; default: /* This is wrong, but I will ignore it... */ if (verbose) stderror(ERR_NAME | ERR_TCARGS, cv, arg_need); /*FALLTHROUGH*/ case 2: v++; if (!*v || *v[0] == '\0') { if (silent) goto end; else stderror(ERR_NAME | ERR_TCNARGS, cv, 2); } arg_cols = atoi(short2str(*v)); v++; if (!*v || *v[0] == '\0') { if (silent) goto end; else stderror(ERR_NAME | ERR_TCNARGS, cv, 2); } arg_rows = atoi(short2str(*v)); v++; if (*v && *v[0]) { if (silent) goto end; else stderror(ERR_NAME | ERR_TCARGS, cv, arg_need); } (void) tputs(tgoto(scap, arg_cols, arg_rows), arg_rows, PUTRAW); break; } end_flush: flush(); end: cleanup_until(globbed); } int GotTermCaps = 0; static struct { Char *name; int key; XmapVal fun; int type; } arrow[] = { #define A_K_DN 0 { STRdown, T_kd, { 0 }, 0 }, #define A_K_UP 1 { STRup, T_ku, { 0 }, 0 }, #define A_K_LT 2 { STRleft, T_kl, { 0 }, 0 }, #define A_K_RT 3 { STRright, T_kr, { 0 }, 0 }, #define A_K_HO 4 { STRhome, T_kh, { 0 }, 0 }, #define A_K_EN 5 { STRend, T_at7, { 0 }, 0} }; #define A_K_NKEYS 6 void ResetArrowKeys(void) { arrow[A_K_DN].fun.cmd = F_DOWN_HIST; arrow[A_K_DN].type = XK_CMD; arrow[A_K_UP].fun.cmd = F_UP_HIST; arrow[A_K_UP].type = XK_CMD; arrow[A_K_LT].fun.cmd = F_CHARBACK; arrow[A_K_LT].type = XK_CMD; arrow[A_K_RT].fun.cmd = F_CHARFWD; arrow[A_K_RT].type = XK_CMD; arrow[A_K_HO].fun.cmd = F_TOBEG; arrow[A_K_HO].type = XK_CMD; arrow[A_K_EN].fun.cmd = F_TOEND; arrow[A_K_EN].type = XK_CMD; } void DefaultArrowKeys(void) { static Char strA[] = {033, '[', 'A', '\0'}; static Char strB[] = {033, '[', 'B', '\0'}; static Char strC[] = {033, '[', 'C', '\0'}; static Char strD[] = {033, '[', 'D', '\0'}; static Char strH[] = {033, '[', 'H', '\0'}; static Char strF[] = {033, '[', 'F', '\0'}; static Char stOA[] = {033, 'O', 'A', '\0'}; static Char stOB[] = {033, 'O', 'B', '\0'}; static Char stOC[] = {033, 'O', 'C', '\0'}; static Char stOD[] = {033, 'O', 'D', '\0'}; static Char stOH[] = {033, 'O', 'H', '\0'}; static Char stOF[] = {033, 'O', 'F', '\0'}; CStr cs; #ifndef IS_ASCII if (strA[0] == 033) { strA[0] = CTL_ESC('\033'); strB[0] = CTL_ESC('\033'); strC[0] = CTL_ESC('\033'); strD[0] = CTL_ESC('\033'); strH[0] = CTL_ESC('\033'); strF[0] = CTL_ESC('\033'); stOA[0] = CTL_ESC('\033'); stOB[0] = CTL_ESC('\033'); stOC[0] = CTL_ESC('\033'); stOD[0] = CTL_ESC('\033'); stOH[0] = CTL_ESC('\033'); stOF[0] = CTL_ESC('\033'); } #endif cs.len = 3; cs.buf = strA; AddXkey(&cs, &arrow[A_K_UP].fun, arrow[A_K_UP].type); cs.buf = strB; AddXkey(&cs, &arrow[A_K_DN].fun, arrow[A_K_DN].type); cs.buf = strC; AddXkey(&cs, &arrow[A_K_RT].fun, arrow[A_K_RT].type); cs.buf = strD; AddXkey(&cs, &arrow[A_K_LT].fun, arrow[A_K_LT].type); cs.buf = strH; AddXkey(&cs, &arrow[A_K_HO].fun, arrow[A_K_HO].type); cs.buf = strF; AddXkey(&cs, &arrow[A_K_EN].fun, arrow[A_K_EN].type); cs.buf = stOA; AddXkey(&cs, &arrow[A_K_UP].fun, arrow[A_K_UP].type); cs.buf = stOB; AddXkey(&cs, &arrow[A_K_DN].fun, arrow[A_K_DN].type); cs.buf = stOC; AddXkey(&cs, &arrow[A_K_RT].fun, arrow[A_K_RT].type); cs.buf = stOD; AddXkey(&cs, &arrow[A_K_LT].fun, arrow[A_K_LT].type); cs.buf = stOH; AddXkey(&cs, &arrow[A_K_HO].fun, arrow[A_K_HO].type); cs.buf = stOF; AddXkey(&cs, &arrow[A_K_EN].fun, arrow[A_K_EN].type); if (VImode) { cs.len = 2; cs.buf = &strA[1]; AddXkey(&cs, &arrow[A_K_UP].fun, arrow[A_K_UP].type); cs.buf = &strB[1]; AddXkey(&cs, &arrow[A_K_DN].fun, arrow[A_K_DN].type); cs.buf = &strC[1]; AddXkey(&cs, &arrow[A_K_RT].fun, arrow[A_K_RT].type); cs.buf = &strD[1]; AddXkey(&cs, &arrow[A_K_LT].fun, arrow[A_K_LT].type); cs.buf = &strH[1]; AddXkey(&cs, &arrow[A_K_HO].fun, arrow[A_K_HO].type); cs.buf = &strF[1]; AddXkey(&cs, &arrow[A_K_EN].fun, arrow[A_K_EN].type); cs.buf = &stOA[1]; AddXkey(&cs, &arrow[A_K_UP].fun, arrow[A_K_UP].type); cs.buf = &stOB[1]; AddXkey(&cs, &arrow[A_K_DN].fun, arrow[A_K_DN].type); cs.buf = &stOC[1]; AddXkey(&cs, &arrow[A_K_RT].fun, arrow[A_K_RT].type); cs.buf = &stOD[1]; AddXkey(&cs, &arrow[A_K_LT].fun, arrow[A_K_LT].type); cs.buf = &stOH[1]; AddXkey(&cs, &arrow[A_K_HO].fun, arrow[A_K_HO].type); cs.buf = &stOF[1]; AddXkey(&cs, &arrow[A_K_EN].fun, arrow[A_K_EN].type); } } int SetArrowKeys(const CStr *name, XmapVal *fun, int type) { int i; for (i = 0; i < A_K_NKEYS; i++) if (Strcmp(name->buf, arrow[i].name) == 0) { arrow[i].fun = *fun; arrow[i].type = type; return 0; } return -1; } int IsArrowKey(Char *name) { int i; for (i = 0; i < A_K_NKEYS; i++) if (Strcmp(name, arrow[i].name) == 0) return 1; return 0; } int ClearArrowKeys(const CStr *name) { int i; for (i = 0; i < A_K_NKEYS; i++) if (Strcmp(name->buf, arrow[i].name) == 0) { arrow[i].type = XK_NOD; return 0; } return -1; } void PrintArrowKeys(const CStr *name) { int i; for (i = 0; i < A_K_NKEYS; i++) if (name->len == 0 || Strcmp(name->buf, arrow[i].name) == 0) if (arrow[i].type != XK_NOD) printOne(arrow[i].name, &arrow[i].fun, arrow[i].type); } void BindArrowKeys(void) { KEYCMD *map, *dmap; int i, j; char *p; CStr cs; if (!GotTermCaps) return; map = VImode ? CcAltMap : CcKeyMap; dmap = VImode ? CcViCmdMap : CcEmacsMap; DefaultArrowKeys(); for (i = 0; i < A_K_NKEYS; i++) { p = tstr[arrow[i].key].str; if (p && *p) { j = (unsigned char) *p; cs.buf = str2short(p); cs.len = Strlen(cs.buf); /* * Assign the arrow keys only if: * * 1. They are multi-character arrow keys and the user * has not re-assigned the leading character, or * has re-assigned the leading character to be F_XKEY * 2. They are single arrow keys pointing to an unassigned key. */ if (arrow[i].type == XK_NOD) { ClearXkey(map, &cs); } else { if (p[1] && (dmap[j] == map[j] || map[j] == F_XKEY)) { AddXkey(&cs, &arrow[i].fun, arrow[i].type); map[j] = F_XKEY; } else if (map[j] == F_UNASSIGNED) { ClearXkey(map, &cs); if (arrow[i].type == XK_CMD) map[j] = arrow[i].fun.cmd; else AddXkey(&cs, &arrow[i].fun, arrow[i].type); } } } } } static Char cur_atr = 0; /* current attributes */ void SetAttributes(Char atr) { atr &= ATTRIBUTES; if (atr != cur_atr) { if (me_all && GoodStr(T_me)) { if (((cur_atr & BOLD) && !(atr & BOLD)) || ((cur_atr & UNDER) && !(atr & UNDER)) || ((cur_atr & STANDOUT) && !(atr & STANDOUT))) { (void) tputs(Str(T_me), 1, PUTPURE); cur_atr = 0; } } if ((atr & BOLD) != (cur_atr & BOLD)) { if (atr & BOLD) { if (GoodStr(T_md) && GoodStr(T_me)) { (void) tputs(Str(T_md), 1, PUTPURE); cur_atr |= BOLD; } } else { if (GoodStr(T_md) && GoodStr(T_me)) { (void) tputs(Str(T_me), 1, PUTPURE); if ((cur_atr & STANDOUT) && GoodStr(T_se)) { (void) tputs(Str(T_se), 1, PUTPURE); cur_atr &= ~STANDOUT; } if ((cur_atr & UNDER) && GoodStr(T_ue)) { (void) tputs(Str(T_ue), 1, PUTPURE); cur_atr &= ~UNDER; } cur_atr &= ~BOLD; } } } if ((atr & STANDOUT) != (cur_atr & STANDOUT)) { if (atr & STANDOUT) { if (GoodStr(T_so) && GoodStr(T_se)) { (void) tputs(Str(T_so), 1, PUTPURE); cur_atr |= STANDOUT; } } else { if (GoodStr(T_se)) { (void) tputs(Str(T_se), 1, PUTPURE); cur_atr &= ~STANDOUT; } } } if ((atr & UNDER) != (cur_atr & UNDER)) { if (atr & UNDER) { if (GoodStr(T_us) && GoodStr(T_ue)) { (void) tputs(Str(T_us), 1, PUTPURE); cur_atr |= UNDER; } } else { if (GoodStr(T_ue)) { (void) tputs(Str(T_ue), 1, PUTPURE); cur_atr &= ~UNDER; } } } } } int highlighting = 0; void StartHighlight() { (void) tputs(Str(T_mr), 1, PUTPURE); highlighting = 1; } void StopHighlight() { (void) tputs(Str(T_me), 1, PUTPURE); highlighting = 0; } /* PWP 6-27-88 -- if the tty driver thinks that we can tab, we ask termcap */ int CanWeTab(void) { return (Val(T_pt)); } /* move to line (first line == 0) as efficiently as possible; */ void MoveToLine(int where) { int del; if (where == CursorV) return; if (where > TermV) { #ifdef DEBUG_SCREEN xprintf("MoveToLine: where is ridiculous: %d\r\n", where); flush(); #endif /* DEBUG_SCREEN */ return; } del = where - CursorV; if (del > 0) { while (del > 0) { if ((T_Margin & MARGIN_AUTO) && Display[CursorV][0] != '\0') { size_t h; for (h = TermH - 1; h > 0 && Display[CursorV][h] == CHAR_DBWIDTH; h--) ; /* move without newline */ MoveToChar(h); so_write(&Display[CursorV][CursorH], TermH - CursorH); /* updates CursorH/V*/ del--; } else { if ((del > 1) && GoodStr(T_DO)) { (void) tputs(tgoto(Str(T_DO), del, del), del, PUTPURE); del = 0; } else { for ( ; del > 0; del--) (void) putraw('\n'); CursorH = 0; /* because the \n will become \r\n */ } } } } else { /* del < 0 */ if (GoodStr(T_UP) && (-del > 1 || !GoodStr(T_up))) (void) tputs(tgoto(Str(T_UP), -del, -del), -del, PUTPURE); else { int i; if (GoodStr(T_up)) for (i = 0; i < -del; i++) (void) tputs(Str(T_up), 1, PUTPURE); } } CursorV = where; /* now where is here */ } void MoveToChar(int where) /* move to character position (where) */ { /* as efficiently as possible */ int del; mc_again: if (where == CursorH) return; if (where >= TermH) { #ifdef DEBUG_SCREEN xprintf("MoveToChar: where is riduculous: %d\r\n", where); flush(); #endif /* DEBUG_SCREEN */ return; } if (!where) { /* if where is first column */ (void) putraw('\r'); /* do a CR */ CursorH = 0; return; } del = where - CursorH; if ((del < -4 || del > 4) && GoodStr(T_ch)) /* go there directly */ (void) tputs(tgoto(Str(T_ch), where, where), where, PUTPURE); else { int i; if (del > 0) { /* moving forward */ if ((del > 4) && GoodStr(T_RI)) (void) tputs(tgoto(Str(T_RI), del, del), del, PUTPURE); else { /* if I can do tabs, use them */ if (T_Tabs) { if ((CursorH & 0370) != (where & ~0x7) && Display[CursorV][where & ~0x7] != CHAR_DBWIDTH) { /* if not within tab stop */ for (i = (CursorH & 0370); i < (where & ~0x7); i += 8) (void) putraw('\t'); /* then tab over */ CursorH = where & ~0x7; /* Note: considering that we often want to go to TermH - 1 for the wrapping, it would be nice to optimize this case by tabbing to the last column - but this doesn't work for all terminals! */ } } /* it's usually cheaper to just write the chars, so we do. */ /* NOTE THAT so_write() WILL CHANGE CursorH!!! */ so_write(&Display[CursorV][CursorH], where - CursorH); } } else { /* del < 0 := moving backward */ if ((-del > 4) && GoodStr(T_LE)) (void) tputs(tgoto(Str(T_LE), -del, -del), -del, PUTPURE); else { /* can't go directly there */ /* if the "cost" is greater than the "cost" from col 0 */ if (T_Tabs ? (-del > ((where >> 3) + (where & 07))) : (-del > where)) { (void) putraw('\r'); /* do a CR */ CursorH = 0; goto mc_again; /* and try again */ } for (i = 0; i < -del; i++) (void) putraw('\b'); } } } CursorH = where; /* now where is here */ } void so_write(Char *cp, int n) { int cur_pos, prompt_len = 0, region_start = 0, region_end = 0; if (n <= 0) return; /* catch bugs */ if (n > TermH) { #ifdef DEBUG_SCREEN xprintf("so_write: n is riduculous: %d\r\n", n); flush(); #endif /* DEBUG_SCREEN */ return; } if (adrof(STRhighlight)) { /* find length of prompt */ Char *promptc; for (promptc = Prompt; *promptc; promptc++); prompt_len = promptc - Prompt; /* find region start and end points */ if (IncMatchLen) { region_start = (Cursor - InputBuf) + prompt_len; region_end = region_start + IncMatchLen; } else if (MarkIsSet) { region_start = (min(Cursor, Mark) - InputBuf) + prompt_len; region_end = (max(Cursor, Mark) - InputBuf) + prompt_len; } } do { if (adrof(STRhighlight)) { cur_pos = CursorV * TermH + CursorH; if (!highlighting && cur_pos >= region_start && cur_pos < region_end) StartHighlight(); else if (highlighting && cur_pos >= region_end) StopHighlight(); /* don't highlight over the cursor. the highlighting's reverse * video would cancel it out. :P */ if (highlighting && cur_pos == (Cursor - InputBuf) + prompt_len) StopHighlight(); } if (*cp != CHAR_DBWIDTH) { if (*cp & LITERAL) { Char *d; #ifdef DEBUG_LITERAL xprintf("so: litnum %d\r\n", (int)(*cp & ~LITERAL)); #endif /* DEBUG_LITERAL */ for (d = litptr + (*cp & ~LITERAL) * LIT_FACTOR; *d; d++) (void) putwraw(*d); } else (void) putwraw(*cp); } cp++; CursorH++; } while (--n); if (adrof(STRhighlight) && highlighting) StopHighlight(); if (CursorH >= TermH) { /* wrap? */ if (T_Margin & MARGIN_AUTO) { /* yes */ CursorH = 0; CursorV++; if (T_Margin & MARGIN_MAGIC) { /* force the wrap to avoid the "magic" situation */ Char xc; if ((xc = Display[CursorV][CursorH]) != '\0') { so_write(&xc, 1); while(Display[CursorV][CursorH] == CHAR_DBWIDTH) CursorH++; } else { (void) putraw(' '); CursorH = 1; } } } else /* no wrap, but cursor stays on screen */ CursorH = TermH - 1; } } void DeleteChars(int num) /* deletes characters */ { if (num <= 0) return; if (!T_CanDel) { #ifdef DEBUG_EDIT xprintf(CGETS(7, 16, "ERROR: cannot delete\r\n")); #endif /* DEBUG_EDIT */ flush(); return; } if (num > TermH) { #ifdef DEBUG_SCREEN xprintf(CGETS(7, 17, "DeleteChars: num is riduculous: %d\r\n"), num); flush(); #endif /* DEBUG_SCREEN */ return; } if (GoodStr(T_DC)) /* if I have multiple delete */ if ((num > 1) || !GoodStr(T_dc)) { /* if dc would be more expen. */ (void) tputs(tgoto(Str(T_DC), num, num), num, PUTPURE); return; } if (GoodStr(T_dm)) /* if I have delete mode */ (void) tputs(Str(T_dm), 1, PUTPURE); if (GoodStr(T_dc)) /* else do one at a time */ while (num--) (void) tputs(Str(T_dc), 1, PUTPURE); if (GoodStr(T_ed)) /* if I have delete mode */ (void) tputs(Str(T_ed), 1, PUTPURE); } /* Puts terminal in insert character mode, or inserts num characters in the line */ void Insert_write(Char *cp, int num) { if (num <= 0) return; if (!T_CanIns) { #ifdef DEBUG_EDIT xprintf(CGETS(7, 18, "ERROR: cannot insert\r\n")); #endif /* DEBUG_EDIT */ flush(); return; } if (num > TermH) { #ifdef DEBUG_SCREEN xprintf(CGETS(7, 19, "StartInsert: num is riduculous: %d\r\n"), num); flush(); #endif /* DEBUG_SCREEN */ return; } if (GoodStr(T_IC)) /* if I have multiple insert */ if ((num > 1) || !GoodStr(T_ic)) { /* if ic would be more expen. */ (void) tputs(tgoto(Str(T_IC), num, num), num, PUTPURE); so_write(cp, num); /* this updates CursorH/V */ return; } if (GoodStr(T_im) && GoodStr(T_ei)) { /* if I have insert mode */ (void) tputs(Str(T_im), 1, PUTPURE); so_write(cp, num); /* this updates CursorH/V */ if (GoodStr(T_ip)) /* have to make num chars insert */ (void) tputs(Str(T_ip), 1, PUTPURE); (void) tputs(Str(T_ei), 1, PUTPURE); return; } do { if (GoodStr(T_ic)) /* have to make num chars insert */ (void) tputs(Str(T_ic), 1, PUTPURE); /* insert a char */ so_write(cp++, 1); /* this updates CursorH/V */ if (GoodStr(T_ip)) /* have to make num chars insert */ (void) tputs(Str(T_ip), 1, PUTPURE);/* pad the inserted char */ } while (--num); } /* clear to end of line. There are num characters to clear */ void ClearEOL(int num) { int i; if (num <= 0) return; if (T_CanCEOL && GoodStr(T_ce)) (void) tputs(Str(T_ce), 1, PUTPURE); else { for (i = 0; i < num; i++) (void) putraw(' '); CursorH += num; /* have written num spaces */ } } void ClearScreen(void) { /* clear the whole screen and home */ if (GoodStr(T_cl)) /* send the clear screen code */ (void) tputs(Str(T_cl), Val(T_li), PUTPURE); else if (GoodStr(T_ho) && GoodStr(T_cd)) { (void) tputs(Str(T_ho), Val(T_li), PUTPURE); /* home */ /* clear to bottom of screen */ (void) tputs(Str(T_cd), Val(T_li), PUTPURE); } else { (void) putraw('\r'); (void) putraw('\n'); } } void SoundBeep(void) { /* produce a sound */ beep_cmd (); if (adrof(STRnobeep)) return; if (GoodStr(T_vb) && adrof(STRvisiblebell)) (void) tputs(Str(T_vb), 1, PUTPURE); /* visible bell */ else if (GoodStr(T_bl)) /* what termcap says we should use */ (void) tputs(Str(T_bl), 1, PUTPURE); else (void) putraw(CTL_ESC('\007')); /* an ASCII bell; ^G */ } void ClearToBottom(void) { /* clear to the bottom of the screen */ if (GoodStr(T_cd)) (void) tputs(Str(T_cd), Val(T_li), PUTPURE); else if (GoodStr(T_ce)) (void) tputs(Str(T_ce), Val(T_li), PUTPURE); } void GetTermCaps(void) { /* read in the needed terminal capabilites */ int i; const char *ptr; char buf[TC_BUFSIZE]; static char bp[TC_BUFSIZE]; char *area; struct termcapstr *t; #ifdef SIG_WINDOW sigset_t oset, set; int lins, cols; /* don't want to confuse things here */ sigemptyset(&set); sigaddset(&set, SIG_WINDOW); (void)sigprocmask(SIG_BLOCK, &set, &oset); cleanup_push(&oset, sigprocmask_cleanup); #endif /* SIG_WINDOW */ area = buf; GotTermCaps = 1; setname("gettermcaps"); ptr = getenv("TERM"); #ifdef apollo /* * If we are on a pad, we pretend that we are dumb. Otherwise the termcap * library will put us in a weird screen mode, thinking that we are going * to use curses */ if (isapad()) ptr = "dumb"; #endif /* apollo */ if (!ptr || !ptr[0] || !strcmp(ptr, "wm") || !strcmp(ptr,"dmx")) ptr = "dumb"; setzero(bp, TC_BUFSIZE); i = tgetent(bp, ptr); if (i <= 0) { if (i == -1) { #if (SYSVREL == 0) || defined(IRIS3D) xprintf(CGETS(7, 20, "%s: Cannot open /etc/termcap.\n"), progname); } else if (i == 0) { #endif /* SYSVREL */ xprintf(CGETS(7, 21, "%s: No entry for terminal type \"%s\"\n"), progname, getenv("TERM")); } xprintf(CGETS(7, 22, "%s: using dumb terminal settings.\n"), progname); Val(T_co) = 80; /* do a dumb terminal */ Val(T_pt) = Val(T_km) = Val(T_li) = 0; for (t = tstr; t->name != NULL; t++) TCset(t, NULL); } else { /* Can we tab */ Val(T_pt) = tgetflag("pt") && !tgetflag("xt"); /* do we have a meta? */ Val(T_km) = (tgetflag("km") || tgetflag("MT")); Val(T_am) = tgetflag("am"); Val(T_xn) = tgetflag("xn"); Val(T_co) = tgetnum("co"); Val(T_li) = tgetnum("li"); for (t = tstr; t->name != NULL; t++) TCset(t, tgetstr(t->name, &area)); } if (Val(T_co) < 2) Val(T_co) = 80; /* just in case */ if (Val(T_li) < 1) Val(T_li) = 24; T_Cols = (Char) Val(T_co); T_Lines = (Char) Val(T_li); if (T_Tabs) T_Tabs = Val(T_pt); T_HasMeta = Val(T_km); T_Margin = Val(T_am) ? MARGIN_AUTO : 0; T_Margin |= Val(T_xn) ? MARGIN_MAGIC : 0; T_CanCEOL = GoodStr(T_ce); T_CanDel = GoodStr(T_dc) || GoodStr(T_DC); T_CanIns = GoodStr(T_im) || GoodStr(T_ic) || GoodStr(T_IC); T_CanUP = GoodStr(T_up) || GoodStr(T_UP); if (GoodStr(T_me) && GoodStr(T_ue)) me_all = (strcmp(Str(T_me), Str(T_ue)) == 0); else me_all = 0; if (GoodStr(T_me) && GoodStr(T_se)) me_all |= (strcmp(Str(T_me), Str(T_se)) == 0); #ifdef DEBUG_SCREEN if (!T_CanUP) { xprintf(CGETS(7, 23, "%s: WARNING: Your terminal cannot move up.\n", progname)); xprintf(CGETS(7, 24, "Editing may be odd for long lines.\n")); } if (!T_CanCEOL) xprintf(CGETS(7, 25, "no clear EOL capability.\n")); if (!T_CanDel) xprintf(CGETS(7, 26, "no delete char capability.\n")); if (!T_CanIns) xprintf(CGETS(7, 27, "no insert char capability.\n")); #endif /* DEBUG_SCREEN */ #ifdef SIG_WINDOW (void) GetSize(&lins, &cols); /* get the correct window size */ ChangeSize(lins, cols); cleanup_until(&oset); /* can change it again */ #else /* SIG_WINDOW */ ChangeSize(Val(T_li), Val(T_co)); #endif /* SIG_WINDOW */ BindArrowKeys(); } #ifdef SIG_WINDOW /* GetSize(): * Return the new window size in lines and cols, and * true if the size was changed. This can fail if SHIN * is not a tty, but it will work in most cases. */ int GetSize(int *lins, int *cols) { *cols = Val(T_co); *lins = Val(T_li); #ifdef TIOCGWINSZ # define KNOWsize # ifndef lint { struct winsize ws; /* from 4.3 */ if (ioctl(SHIN, TIOCGWINSZ, (ioctl_t) &ws) != -1) { if (ws.ws_col) *cols = ws.ws_col; if (ws.ws_row) *lins = ws.ws_row; } } # endif /* !lint */ #else /* TIOCGWINSZ */ # ifdef TIOCGSIZE # define KNOWsize { struct ttysize ts; /* from Sun */ if (ioctl(SHIN, TIOCGSIZE, (ioctl_t) &ts) != -1) { if (ts.ts_cols) *cols = ts.ts_cols; if (ts.ts_lines) *lins = ts.ts_lines; } } # endif /* TIOCGSIZE */ #endif /* TIOCGWINSZ */ return (Val(T_co) != *cols || Val(T_li) != *lins); } #endif /* SIG_WINDOW */ #ifdef KNOWsize static void UpdateVal(const Char *tag, int value, Char *termcap, Char *backup) { Char *ptr, *p; if ((ptr = Strstr(termcap, tag)) == NULL) { (void)Strcpy(backup, termcap); return; } else { size_t len = (ptr - termcap) + Strlen(tag); (void)Strncpy(backup, termcap, len); backup[len] = '\0'; p = Itoa(value, 0, 0); (void) Strcat(backup + len, p); xfree(p); ptr = Strchr(ptr, ':'); if (ptr) (void) Strcat(backup, ptr); } } #endif void ChangeSize(int lins, int cols) { /* * Just in case */ Val(T_co) = (cols < 2) ? 80 : cols; Val(T_li) = (lins < 1) ? 24 : lins; #ifdef KNOWsize /* * We want to affect the environment only when we have a valid * setup, not when we get bad settings. Consider the following scenario: * We just logged in, and we have not initialized the editor yet. * We reset termcap with tset, and not $TERMCAP has the right * terminal size. But since the editor is not initialized yet, and * the kernel's notion of the terminal size might be wrong we arrive * here with lines = columns = 0. If we reset the environment we lose * our only chance to get the window size right. */ if (Val(T_co) == cols && Val(T_li) == lins) { Char *p; char *tptr; if (getenv("COLUMNS")) { p = Itoa(Val(T_co), 0, 0); cleanup_push(p, xfree); tsetenv(STRCOLUMNS, p); cleanup_until(p); } if (getenv("LINES")) { p = Itoa(Val(T_li), 0, 0); cleanup_push(p, xfree); tsetenv(STRLINES, p); cleanup_until(p); } if ((tptr = getenv("TERMCAP")) != NULL) { /* Leave 64 characters slop in case we enlarge the termcap string */ Char termcap[TC_BUFSIZE+64], backup[TC_BUFSIZE+64], *ptr; Char buf[4]; ptr = str2short(tptr); (void) Strncpy(termcap, ptr, TC_BUFSIZE); termcap[TC_BUFSIZE-1] = '\0'; UpdateVal(STRco, Val(T_co), termcap, backup); UpdateVal(STRli, Val(T_li), termcap, backup); /* * Chop the termcap string at TC_BUFSIZE-1 characters to avoid * core-dumps in the termcap routines */ termcap[TC_BUFSIZE - 1] = '\0'; tsetenv(STRTERMCAP, termcap); } } #endif /* KNOWsize */ ReBufferDisplay(); /* re-make display buffers */ ClearDisp(); }