diff options
Diffstat (limited to 'bin/1sh/libedit/terminal.c')
| -rw-r--r-- | bin/1sh/libedit/terminal.c | 1681 |
1 files changed, 1681 insertions, 0 deletions
diff --git a/bin/1sh/libedit/terminal.c b/bin/1sh/libedit/terminal.c new file mode 100644 index 00000000..edaa5b2b --- /dev/null +++ b/bin/1sh/libedit/terminal.c @@ -0,0 +1,1681 @@ +/* $NetBSD: terminal.c,v 1.32.8.1 2017/07/23 14:41:26 snj Exp $ */ + +/*- + * Copyright (c) 1992, 1993 + * The Regents of the University of California. All rights reserved. + * + * This code is derived from software contributed to Berkeley by + * Christos Zoulas of Cornell University. + * + * 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 "config.h" +#if !defined(lint) && !defined(SCCSID) +#if 0 +static char sccsid[] = "@(#)term.c 8.2 (Berkeley) 4/30/95"; +#else +__RCSID("$NetBSD: terminal.c,v 1.32.8.1 2017/07/23 14:41:26 snj Exp $"); +#endif +#endif /* not lint && not SCCSID */ + +/* + * terminal.c: Editor/termcap-curses interface + * We have to declare a static variable here, since the + * termcap putchar routine does not take an argument! + */ +#include <sys/types.h> +#include <sys/ioctl.h> +#include <limits.h> +#include <signal.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <unistd.h> +#ifdef HAVE_TERMCAP_H +#include <termcap.h> +#endif +#ifdef HAVE_CURSES_H +#include <curses.h> +#elif HAVE_NCURSES_H +#include <ncurses.h> +#endif + +/* Solaris's term.h does horrid things. */ +#if defined(HAVE_TERM_H) && !defined(__sun) && !defined(HAVE_TERMCAP_H) +#include <term.h> +#endif + +#ifdef _REENTRANT +#include <pthread.h> +#endif + +#include "el.h" +#include "fcns.h" + +/* + * IMPORTANT NOTE: these routines are allowed to look at the current screen + * and the current position 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 ((size_t)2048) + +#define GoodStr(a) (el->el_terminal.t_str[a] != NULL && \ + el->el_terminal.t_str[a][0] != '\0') +#define Str(a) el->el_terminal.t_str[a] +#define Val(a) el->el_terminal.t_val[a] + +static const struct termcapstr { + const char *name; + const char *long_name; +} tstr[] = { +#define T_al 0 + { "al", "add new blank line" }, +#define T_bl 1 + { "bl", "audible bell" }, +#define T_cd 2 + { "cd", "clear to bottom" }, +#define T_ce 3 + { "ce", "clear to end of line" }, +#define T_ch 4 + { "ch", "cursor to horiz pos" }, +#define T_cl 5 + { "cl", "clear screen" }, +#define T_dc 6 + { "dc", "delete a character" }, +#define T_dl 7 + { "dl", "delete a line" }, +#define T_dm 8 + { "dm", "start delete mode" }, +#define T_ed 9 + { "ed", "end delete mode" }, +#define T_ei 10 + { "ei", "end insert mode" }, +#define T_fs 11 + { "fs", "cursor from status line" }, +#define T_ho 12 + { "ho", "home cursor" }, +#define T_ic 13 + { "ic", "insert character" }, +#define T_im 14 + { "im", "start insert mode" }, +#define T_ip 15 + { "ip", "insert padding" }, +#define T_kd 16 + { "kd", "sends cursor down" }, +#define T_kl 17 + { "kl", "sends cursor left" }, +#define T_kr 18 + { "kr", "sends cursor right" }, +#define T_ku 19 + { "ku", "sends cursor up" }, +#define T_md 20 + { "md", "begin bold" }, +#define T_me 21 + { "me", "end attributes" }, +#define T_nd 22 + { "nd", "non destructive space" }, +#define T_se 23 + { "se", "end standout" }, +#define T_so 24 + { "so", "begin standout" }, +#define T_ts 25 + { "ts", "cursor to status line" }, +#define T_up 26 + { "up", "cursor up one" }, +#define T_us 27 + { "us", "begin underline" }, +#define T_ue 28 + { "ue", "end underline" }, +#define T_vb 29 + { "vb", "visible bell" }, +#define T_DC 30 + { "DC", "delete multiple chars" }, +#define T_DO 31 + { "DO", "cursor down multiple" }, +#define T_IC 32 + { "IC", "insert multiple chars" }, +#define T_LE 33 + { "LE", "cursor left multiple" }, +#define T_RI 34 + { "RI", "cursor right multiple" }, +#define T_UP 35 + { "UP", "cursor up multiple" }, +#define T_kh 36 + { "kh", "send cursor home" }, +#define T_at7 37 + { "@7", "send cursor end" }, +#define T_kD 38 + { "kD", "send cursor delete" }, +#define T_str 39 + { NULL, NULL } +}; + +static const struct termcapval { + const char *name; + const char *long_name; +} tval[] = { +#define T_am 0 + { "am", "has automatic margins" }, +#define T_pt 1 + { "pt", "has physical tabs" }, +#define T_li 2 + { "li", "Number of lines" }, +#define T_co 3 + { "co", "Number of columns" }, +#define T_km 4 + { "km", "Has meta key" }, +#define T_xt 5 + { "xt", "Tab chars destructive" }, +#define T_xn 6 + { "xn", "newline ignored at right margin" }, +#define T_MT 7 + { "MT", "Has meta key" }, /* XXX? */ +#define T_val 8 + { NULL, NULL, } +}; +/* do two or more of the attributes use me */ + +static void terminal_setflags(EditLine *); +static int terminal_rebuffer_display(EditLine *); +static void terminal_free_display(EditLine *); +static int terminal_alloc_display(EditLine *); +static void terminal_alloc(EditLine *, const struct termcapstr *, + const char *); +static void terminal_init_arrow(EditLine *); +static void terminal_reset_arrow(EditLine *); +static int terminal_putc(int); +static void terminal_tputs(EditLine *, const char *, int); + +#ifdef _REENTRANT +static pthread_mutex_t terminal_mutex = PTHREAD_MUTEX_INITIALIZER; +#endif +static FILE *terminal_outfile = NULL; + + +/* terminal_setflags(): + * Set the terminal capability flags + */ +static void +terminal_setflags(EditLine *el) +{ + EL_FLAGS = 0; + if (el->el_tty.t_tabs) + EL_FLAGS |= (Val(T_pt) && !Val(T_xt)) ? TERM_CAN_TAB : 0; + + EL_FLAGS |= (Val(T_km) || Val(T_MT)) ? TERM_HAS_META : 0; + EL_FLAGS |= GoodStr(T_ce) ? TERM_CAN_CEOL : 0; + EL_FLAGS |= (GoodStr(T_dc) || GoodStr(T_DC)) ? TERM_CAN_DELETE : 0; + EL_FLAGS |= (GoodStr(T_im) || GoodStr(T_ic) || GoodStr(T_IC)) ? + TERM_CAN_INSERT : 0; + EL_FLAGS |= (GoodStr(T_up) || GoodStr(T_UP)) ? TERM_CAN_UP : 0; + EL_FLAGS |= Val(T_am) ? TERM_HAS_AUTO_MARGINS : 0; + EL_FLAGS |= Val(T_xn) ? TERM_HAS_MAGIC_MARGINS : 0; + + if (GoodStr(T_me) && GoodStr(T_ue)) + EL_FLAGS |= (strcmp(Str(T_me), Str(T_ue)) == 0) ? + TERM_CAN_ME : 0; + else + EL_FLAGS &= ~TERM_CAN_ME; + if (GoodStr(T_me) && GoodStr(T_se)) + EL_FLAGS |= (strcmp(Str(T_me), Str(T_se)) == 0) ? + TERM_CAN_ME : 0; + + +#ifdef DEBUG_SCREEN + if (!EL_CAN_UP) { + (void) fprintf(el->el_errfile, + "WARNING: Your terminal cannot move up.\n"); + (void) fprintf(el->el_errfile, + "Editing may be odd for long lines.\n"); + } + if (!EL_CAN_CEOL) + (void) fprintf(el->el_errfile, "no clear EOL capability.\n"); + if (!EL_CAN_DELETE) + (void) fprintf(el->el_errfile, "no delete char capability.\n"); + if (!EL_CAN_INSERT) + (void) fprintf(el->el_errfile, "no insert char capability.\n"); +#endif /* DEBUG_SCREEN */ +} + +/* terminal_init(): + * Initialize the terminal stuff + */ +libedit_private int +terminal_init(EditLine *el) +{ + + el->el_terminal.t_buf = el_malloc(TC_BUFSIZE * + sizeof(*el->el_terminal.t_buf)); + if (el->el_terminal.t_buf == NULL) + goto fail1; + el->el_terminal.t_cap = el_malloc(TC_BUFSIZE * + sizeof(*el->el_terminal.t_cap)); + if (el->el_terminal.t_cap == NULL) + goto fail2; + el->el_terminal.t_fkey = el_malloc(A_K_NKEYS * + sizeof(*el->el_terminal.t_fkey)); + if (el->el_terminal.t_fkey == NULL) + goto fail3; + el->el_terminal.t_loc = 0; + el->el_terminal.t_str = el_malloc(T_str * + sizeof(*el->el_terminal.t_str)); + if (el->el_terminal.t_str == NULL) + goto fail4; + (void) memset(el->el_terminal.t_str, 0, T_str * + sizeof(*el->el_terminal.t_str)); + el->el_terminal.t_val = el_malloc(T_val * + sizeof(*el->el_terminal.t_val)); + if (el->el_terminal.t_val == NULL) + goto fail5; + (void) memset(el->el_terminal.t_val, 0, T_val * + sizeof(*el->el_terminal.t_val)); + (void) terminal_set(el, NULL); + terminal_init_arrow(el); + return 0; +fail5: + free(el->el_terminal.t_str); + el->el_terminal.t_str = NULL; +fail4: + free(el->el_terminal.t_fkey); + el->el_terminal.t_fkey = NULL; +fail3: + free(el->el_terminal.t_cap); + el->el_terminal.t_cap = NULL; +fail2: + free(el->el_terminal.t_buf); + el->el_terminal.t_buf = NULL; +fail1: + return -1; +} + +/* terminal_end(): + * Clean up the terminal stuff + */ +libedit_private void +terminal_end(EditLine *el) +{ + + el_free(el->el_terminal.t_buf); + el->el_terminal.t_buf = NULL; + el_free(el->el_terminal.t_cap); + el->el_terminal.t_cap = NULL; + el->el_terminal.t_loc = 0; + el_free(el->el_terminal.t_str); + el->el_terminal.t_str = NULL; + el_free(el->el_terminal.t_val); + el->el_terminal.t_val = NULL; + el_free(el->el_terminal.t_fkey); + el->el_terminal.t_fkey = NULL; + terminal_free_display(el); +} + + +/* terminal_alloc(): + * Maintain a string pool for termcap strings + */ +static void +terminal_alloc(EditLine *el, const struct termcapstr *t, const char *cap) +{ + char termbuf[TC_BUFSIZE]; + size_t tlen, clen; + char **tlist = el->el_terminal.t_str; + char **tmp, **str = &tlist[t - tstr]; + + (void) memset(termbuf, 0, sizeof(termbuf)); + if (cap == NULL || *cap == '\0') { + *str = NULL; + return; + } else + clen = strlen(cap); + + tlen = *str == NULL ? 0 : strlen(*str); + + /* + * New string is shorter; no need to allocate space + */ + if (clen <= tlen) { + if (*str) + (void) strcpy(*str, cap); /* XXX strcpy is safe */ + return; + } + /* + * New string is longer; see if we have enough space to append + */ + if (el->el_terminal.t_loc + 3 < TC_BUFSIZE) { + /* XXX strcpy is safe */ + (void) strcpy(*str = &el->el_terminal.t_buf[ + el->el_terminal.t_loc], cap); + el->el_terminal.t_loc += clen + 1; /* one for \0 */ + return; + } + /* + * Compact our buffer; no need to check compaction, cause we know it + * fits... + */ + tlen = 0; + for (tmp = tlist; tmp < &tlist[T_str]; tmp++) + if (*tmp != NULL && **tmp != '\0' && *tmp != *str) { + char *ptr; + + for (ptr = *tmp; *ptr != '\0'; termbuf[tlen++] = *ptr++) + continue; + termbuf[tlen++] = '\0'; + } + memcpy(el->el_terminal.t_buf, termbuf, TC_BUFSIZE); + el->el_terminal.t_loc = tlen; + if (el->el_terminal.t_loc + 3 >= TC_BUFSIZE) { + (void) fprintf(el->el_errfile, + "Out of termcap string space.\n"); + return; + } + /* XXX strcpy is safe */ + (void) strcpy(*str = &el->el_terminal.t_buf[el->el_terminal.t_loc], + cap); + el->el_terminal.t_loc += (size_t)clen + 1; /* one for \0 */ + return; +} + + +/* terminal_rebuffer_display(): + * Rebuffer the display after the screen changed size + */ +static int +terminal_rebuffer_display(EditLine *el) +{ + coord_t *c = &el->el_terminal.t_size; + + terminal_free_display(el); + + c->h = Val(T_co); + c->v = Val(T_li); + + if (terminal_alloc_display(el) == -1) + return -1; + return 0; +} + +static wchar_t ** +terminal_alloc_buffer(EditLine *el) +{ + wint_t **b; + coord_t *c = &el->el_terminal.t_size; + int i; + + b = el_malloc(sizeof(*b) * (size_t)(c->v + 1)); + if (b == NULL) + return NULL; + for (i = 0; i < c->v; i++) { + b[i] = el_malloc(sizeof(**b) * (size_t)(c->h + 1)); + if (b[i] == NULL) { + while (--i >= 0) + el_free(b[i]); + el_free(b); + return NULL; + } + } + b[c->v] = NULL; + return b; +} + +static void +terminal_free_buffer(wint_t ***bp) +{ + wint_t **b; + wint_t **bufp; + + if (*bp == NULL) + return; + + b = *bp; + *bp = NULL; + + for (bufp = b; *bufp != NULL; bufp++) + el_free(*bufp); + el_free(b); +} + +/* terminal_alloc_display(): + * Allocate a new display. + */ +static int +terminal_alloc_display(EditLine *el) +{ + el->el_display = terminal_alloc_buffer(el); + if (el->el_display == NULL) + goto done; + el->el_vdisplay = terminal_alloc_buffer(el); + if (el->el_vdisplay == NULL) + goto done; + return 0; +done: + terminal_free_display(el); + return -1; +} + + +/* terminal_free_display(): + * Free the display buffers + */ +static void +terminal_free_display(EditLine *el) +{ + terminal_free_buffer(&el->el_display); + terminal_free_buffer(&el->el_vdisplay); +} + + +/* terminal_move_to_line(): + * move to line <where> (first line == 0) + * as efficiently as possible + */ +libedit_private void +terminal_move_to_line(EditLine *el, int where) +{ + int del; + + if (where == el->el_cursor.v) + return; + + if (where > el->el_terminal.t_size.v) { +#ifdef DEBUG_SCREEN + (void) fprintf(el->el_errfile, + "%s: where is ridiculous: %d\r\n", __func__, where); +#endif /* DEBUG_SCREEN */ + return; + } + if ((del = where - el->el_cursor.v) > 0) { + while (del > 0) { + if (EL_HAS_AUTO_MARGINS && + el->el_display[el->el_cursor.v][0] != '\0') { + size_t h = (size_t) + (el->el_terminal.t_size.h - 1); + for (; h > 0 && + el->el_display[el->el_cursor.v][h] == + MB_FILL_CHAR; + h--) + continue; + /* move without newline */ + terminal_move_to_char(el, (int)h); + terminal_overwrite(el, &el->el_display + [el->el_cursor.v][el->el_cursor.h], + (size_t)(el->el_terminal.t_size.h - + el->el_cursor.h)); + /* updates Cursor */ + del--; + } else { + if ((del > 1) && GoodStr(T_DO)) { + terminal_tputs(el, tgoto(Str(T_DO), del, + del), del); + del = 0; + } else { + for (; del > 0; del--) + terminal__putc(el, '\n'); + /* because the \n will become \r\n */ + el->el_cursor.h = 0; + } + } + } + } else { /* del < 0 */ + if (GoodStr(T_UP) && (-del > 1 || !GoodStr(T_up))) + terminal_tputs(el, tgoto(Str(T_UP), -del, -del), -del); + else { + if (GoodStr(T_up)) + for (; del < 0; del++) + terminal_tputs(el, Str(T_up), 1); + } + } + el->el_cursor.v = where;/* now where is here */ +} + + +/* terminal_move_to_char(): + * Move to the character position specified + */ +libedit_private void +terminal_move_to_char(EditLine *el, int where) +{ + int del, i; + +mc_again: + if (where == el->el_cursor.h) + return; + + if (where > el->el_terminal.t_size.h) { +#ifdef DEBUG_SCREEN + (void) fprintf(el->el_errfile, + "%s: where is ridiculous: %d\r\n", __func__, where); +#endif /* DEBUG_SCREEN */ + return; + } + if (!where) { /* if where is first column */ + terminal__putc(el, '\r'); /* do a CR */ + el->el_cursor.h = 0; + return; + } + del = where - el->el_cursor.h; + + if ((del < -4 || del > 4) && GoodStr(T_ch)) + /* go there directly */ + terminal_tputs(el, tgoto(Str(T_ch), where, where), where); + else { + if (del > 0) { /* moving forward */ + if ((del > 4) && GoodStr(T_RI)) + terminal_tputs(el, tgoto(Str(T_RI), del, del), + del); + else { + /* if I can do tabs, use them */ + if (EL_CAN_TAB) { + if ((el->el_cursor.h & 0370) != + (where & ~0x7) + && (el->el_display[ + el->el_cursor.v][where & 0370] != + MB_FILL_CHAR) + ) { + /* if not within tab stop */ + for (i = + (el->el_cursor.h & 0370); + i < (where & ~0x7); + i += 8) + terminal__putc(el, + '\t'); + /* then tab over */ + el->el_cursor.h = where & ~0x7; + } + } + /* + * it's usually cheaper to just write the + * chars, so we do. + */ + /* + * NOTE THAT terminal_overwrite() WILL CHANGE + * el->el_cursor.h!!! + */ + terminal_overwrite(el, &el->el_display[ + el->el_cursor.v][el->el_cursor.h], + (size_t)(where - el->el_cursor.h)); + + } + } else { /* del < 0 := moving backward */ + if ((-del > 4) && GoodStr(T_LE)) + terminal_tputs(el, tgoto(Str(T_LE), -del, -del), + -del); + else { /* can't go directly there */ + /* + * if the "cost" is greater than the "cost" + * from col 0 + */ + if (EL_CAN_TAB ? + ((unsigned int)-del > + (((unsigned int) where >> 3) + + (where & 07))) + : (-del > where)) { + terminal__putc(el, '\r');/* do a CR */ + el->el_cursor.h = 0; + goto mc_again; /* and try again */ + } + for (i = 0; i < -del; i++) + terminal__putc(el, '\b'); + } + } + } + el->el_cursor.h = where; /* now where is here */ +} + + +/* terminal_overwrite(): + * Overstrike num characters + * Assumes MB_FILL_CHARs are present to keep the column count correct + */ +libedit_private void +terminal_overwrite(EditLine *el, const wchar_t *cp, size_t n) +{ + if (n == 0) + return; + + if (n > (size_t)el->el_terminal.t_size.h) { +#ifdef DEBUG_SCREEN + (void) fprintf(el->el_errfile, + "%s: n is ridiculous: %zu\r\n", __func__, n); +#endif /* DEBUG_SCREEN */ + return; + } + + do { + /* terminal__putc() ignores any MB_FILL_CHARs */ + terminal__putc(el, *cp++); + el->el_cursor.h++; + } while (--n); + + if (el->el_cursor.h >= el->el_terminal.t_size.h) { /* wrap? */ + if (EL_HAS_AUTO_MARGINS) { /* yes */ + el->el_cursor.h = 0; + el->el_cursor.v++; + if (EL_HAS_MAGIC_MARGINS) { + /* force the wrap to avoid the "magic" + * situation */ + wchar_t c; + if ((c = el->el_display[el->el_cursor.v] + [el->el_cursor.h]) != '\0') { + terminal_overwrite(el, &c, (size_t)1); + while (el->el_display[el->el_cursor.v] + [el->el_cursor.h] == MB_FILL_CHAR) + el->el_cursor.h++; + } else { + terminal__putc(el, ' '); + el->el_cursor.h = 1; + } + } + } else /* no wrap, but cursor stays on screen */ + el->el_cursor.h = el->el_terminal.t_size.h - 1; + } +} + + +/* terminal_deletechars(): + * Delete num characters + */ +libedit_private void +terminal_deletechars(EditLine *el, int num) +{ + if (num <= 0) + return; + + if (!EL_CAN_DELETE) { +#ifdef DEBUG_EDIT + (void) fprintf(el->el_errfile, " ERROR: cannot delete \n"); +#endif /* DEBUG_EDIT */ + return; + } + if (num > el->el_terminal.t_size.h) { +#ifdef DEBUG_SCREEN + (void) fprintf(el->el_errfile, + "%s: num is ridiculous: %d\r\n", __func__, num); +#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. */ + terminal_tputs(el, tgoto(Str(T_DC), num, num), num); + return; + } + if (GoodStr(T_dm)) /* if I have delete mode */ + terminal_tputs(el, Str(T_dm), 1); + + if (GoodStr(T_dc)) /* else do one at a time */ + while (num--) + terminal_tputs(el, Str(T_dc), 1); + + if (GoodStr(T_ed)) /* if I have delete mode */ + terminal_tputs(el, Str(T_ed), 1); +} + + +/* terminal_insertwrite(): + * Puts terminal in insert character mode or inserts num + * characters in the line + * Assumes MB_FILL_CHARs are present to keep column count correct + */ +libedit_private void +terminal_insertwrite(EditLine *el, wchar_t *cp, int num) +{ + if (num <= 0) + return; + if (!EL_CAN_INSERT) { +#ifdef DEBUG_EDIT + (void) fprintf(el->el_errfile, " ERROR: cannot insert \n"); +#endif /* DEBUG_EDIT */ + return; + } + if (num > el->el_terminal.t_size.h) { +#ifdef DEBUG_SCREEN + (void) fprintf(el->el_errfile, + "%s: num is ridiculous: %d\r\n", __func__, num); +#endif /* DEBUG_SCREEN */ + return; + } + if (GoodStr(T_IC)) /* if I have multiple insert */ + if ((num > 1) || !GoodStr(T_ic)) { + /* if ic would be more expensive */ + terminal_tputs(el, tgoto(Str(T_IC), num, num), num); + terminal_overwrite(el, cp, (size_t)num); + /* this updates el_cursor.h */ + return; + } + if (GoodStr(T_im) && GoodStr(T_ei)) { /* if I have insert mode */ + terminal_tputs(el, Str(T_im), 1); + + el->el_cursor.h += num; + do + terminal__putc(el, *cp++); + while (--num); + + if (GoodStr(T_ip)) /* have to make num chars insert */ + terminal_tputs(el, Str(T_ip), 1); + + terminal_tputs(el, Str(T_ei), 1); + return; + } + do { + if (GoodStr(T_ic)) /* have to make num chars insert */ + terminal_tputs(el, Str(T_ic), 1); + + terminal__putc(el, *cp++); + + el->el_cursor.h++; + + if (GoodStr(T_ip)) /* have to make num chars insert */ + terminal_tputs(el, Str(T_ip), 1); + /* pad the inserted char */ + + } while (--num); +} + + +/* terminal_clear_EOL(): + * clear to end of line. There are num characters to clear + */ +libedit_private void +terminal_clear_EOL(EditLine *el, int num) +{ + int i; + + if (EL_CAN_CEOL && GoodStr(T_ce)) + terminal_tputs(el, Str(T_ce), 1); + else { + for (i = 0; i < num; i++) + terminal__putc(el, ' '); + el->el_cursor.h += num; /* have written num spaces */ + } +} + + +/* terminal_clear_screen(): + * Clear the screen + */ +libedit_private void +terminal_clear_screen(EditLine *el) +{ /* clear the whole screen and home */ + + if (GoodStr(T_cl)) + /* send the clear screen code */ + terminal_tputs(el, Str(T_cl), Val(T_li)); + else if (GoodStr(T_ho) && GoodStr(T_cd)) { + terminal_tputs(el, Str(T_ho), Val(T_li)); /* home */ + /* clear to bottom of screen */ + terminal_tputs(el, Str(T_cd), Val(T_li)); + } else { + terminal__putc(el, '\r'); + terminal__putc(el, '\n'); + } +} + + +/* terminal_beep(): + * Beep the way the terminal wants us + */ +libedit_private void +terminal_beep(EditLine *el) +{ + if (GoodStr(T_bl)) + /* what termcap says we should use */ + terminal_tputs(el, Str(T_bl), 1); + else + terminal__putc(el, '\007'); /* an ASCII bell; ^G */ +} + + +libedit_private void +terminal_get(EditLine *el, const char **term) +{ + *term = el->el_terminal.t_name; +} + + +/* terminal_set(): + * Read in the terminal capabilities from the requested terminal + */ +libedit_private int +terminal_set(EditLine *el, const char *term) +{ + int i; + char buf[TC_BUFSIZE]; + char *area; + const struct termcapstr *t; + sigset_t oset, nset; + int lins, cols; + + (void) sigemptyset(&nset); + (void) sigaddset(&nset, SIGWINCH); + (void) sigprocmask(SIG_BLOCK, &nset, &oset); + + area = buf; + + + if (term == NULL) + term = getenv("TERM"); + + if (!term || !term[0]) + term = "dumb"; + + if (strcmp(term, "emacs") == 0) + el->el_flags |= EDIT_DISABLED; + + (void) memset(el->el_terminal.t_cap, 0, TC_BUFSIZE); + + i = tgetent(el->el_terminal.t_cap, term); + + if (i <= 0) { + if (i == -1) + (void) fprintf(el->el_errfile, + "Cannot read termcap database;\n"); + else if (i == 0) + (void) fprintf(el->el_errfile, + "No entry for terminal type \"%s\";\n", term); + (void) fprintf(el->el_errfile, + "using dumb terminal settings.\n"); + Val(T_co) = 80; /* do a dumb terminal */ + Val(T_pt) = Val(T_km) = Val(T_li) = 0; + Val(T_xt) = Val(T_MT); + for (t = tstr; t->name != NULL; t++) + terminal_alloc(el, t, NULL); + } else { + /* auto/magic margins */ + Val(T_am) = tgetflag("am"); + Val(T_xn) = tgetflag("xn"); + /* Can we tab */ + Val(T_pt) = tgetflag("pt"); + Val(T_xt) = tgetflag("xt"); + /* do we have a meta? */ + Val(T_km) = tgetflag("km"); + Val(T_MT) = tgetflag("MT"); + /* Get the size */ + Val(T_co) = tgetnum("co"); + Val(T_li) = tgetnum("li"); + for (t = tstr; t->name != NULL; t++) { + /* XXX: some systems' tgetstr needs non const */ + terminal_alloc(el, t, tgetstr(strchr(t->name, *t->name), + &area)); + } + } + + if (Val(T_co) < 2) + Val(T_co) = 80; /* just in case */ + if (Val(T_li) < 1) + Val(T_li) = 24; + + el->el_terminal.t_size.v = Val(T_co); + el->el_terminal.t_size.h = Val(T_li); + + terminal_setflags(el); + + /* get the correct window size */ + (void) terminal_get_size(el, &lins, &cols); + if (terminal_change_size(el, lins, cols) == -1) + return -1; + (void) sigprocmask(SIG_SETMASK, &oset, NULL); + terminal_bind_arrow(el); + el->el_terminal.t_name = term; + return i <= 0 ? -1 : 0; +} + + +/* terminal_get_size(): + * Return the new window size in lines and cols, and + * true if the size was changed. + */ +libedit_private int +terminal_get_size(EditLine *el, int *lins, int *cols) +{ + + *cols = Val(T_co); + *lins = Val(T_li); + +#ifdef TIOCGWINSZ + { + struct winsize ws; + if (ioctl(el->el_infd, TIOCGWINSZ, &ws) != -1) { + if (ws.ws_col) + *cols = ws.ws_col; + if (ws.ws_row) + *lins = ws.ws_row; + } + } +#endif +#ifdef TIOCGSIZE + { + struct ttysize ts; + if (ioctl(el->el_infd, TIOCGSIZE, &ts) != -1) { + if (ts.ts_cols) + *cols = ts.ts_cols; + if (ts.ts_lines) + *lins = ts.ts_lines; + } + } +#endif + return Val(T_co) != *cols || Val(T_li) != *lins; +} + + +/* terminal_change_size(): + * Change the size of the terminal + */ +libedit_private int +terminal_change_size(EditLine *el, int lins, int cols) +{ + /* + * Just in case + */ + Val(T_co) = (cols < 2) ? 80 : cols; + Val(T_li) = (lins < 1) ? 24 : lins; + + /* re-make display buffers */ + if (terminal_rebuffer_display(el) == -1) + return -1; + re_clear_display(el); + return 0; +} + + +/* terminal_init_arrow(): + * Initialize the arrow key bindings from termcap + */ +static void +terminal_init_arrow(EditLine *el) +{ + funckey_t *arrow = el->el_terminal.t_fkey; + + arrow[A_K_DN].name = L"down"; + arrow[A_K_DN].key = T_kd; + arrow[A_K_DN].fun.cmd = ED_NEXT_HISTORY; + arrow[A_K_DN].type = XK_CMD; + + arrow[A_K_UP].name = L"up"; + arrow[A_K_UP].key = T_ku; + arrow[A_K_UP].fun.cmd = ED_PREV_HISTORY; + arrow[A_K_UP].type = XK_CMD; + + arrow[A_K_LT].name = L"left"; + arrow[A_K_LT].key = T_kl; + arrow[A_K_LT].fun.cmd = ED_PREV_CHAR; + arrow[A_K_LT].type = XK_CMD; + + arrow[A_K_RT].name = L"right"; + arrow[A_K_RT].key = T_kr; + arrow[A_K_RT].fun.cmd = ED_NEXT_CHAR; + arrow[A_K_RT].type = XK_CMD; + + arrow[A_K_HO].name = L"home"; + arrow[A_K_HO].key = T_kh; + arrow[A_K_HO].fun.cmd = ED_MOVE_TO_BEG; + arrow[A_K_HO].type = XK_CMD; + + arrow[A_K_EN].name = L"end"; + arrow[A_K_EN].key = T_at7; + arrow[A_K_EN].fun.cmd = ED_MOVE_TO_END; + arrow[A_K_EN].type = XK_CMD; + + arrow[A_K_DE].name = L"delete"; + arrow[A_K_DE].key = T_kD; + arrow[A_K_DE].fun.cmd = ED_DELETE_NEXT_CHAR; + arrow[A_K_DE].type = XK_CMD; +} + + +/* terminal_reset_arrow(): + * Reset arrow key bindings + */ +static void +terminal_reset_arrow(EditLine *el) +{ + funckey_t *arrow = el->el_terminal.t_fkey; + static const wchar_t strA[] = L"\033[A"; + static const wchar_t strB[] = L"\033[B"; + static const wchar_t strC[] = L"\033[C"; + static const wchar_t strD[] = L"\033[D"; + static const wchar_t strH[] = L"\033[H"; + static const wchar_t strF[] = L"\033[F"; + static const wchar_t stOA[] = L"\033OA"; + static const wchar_t stOB[] = L"\033OB"; + static const wchar_t stOC[] = L"\033OC"; + static const wchar_t stOD[] = L"\033OD"; + static const wchar_t stOH[] = L"\033OH"; + static const wchar_t stOF[] = L"\033OF"; + + keymacro_add(el, strA, &arrow[A_K_UP].fun, arrow[A_K_UP].type); + keymacro_add(el, strB, &arrow[A_K_DN].fun, arrow[A_K_DN].type); + keymacro_add(el, strC, &arrow[A_K_RT].fun, arrow[A_K_RT].type); + keymacro_add(el, strD, &arrow[A_K_LT].fun, arrow[A_K_LT].type); + keymacro_add(el, strH, &arrow[A_K_HO].fun, arrow[A_K_HO].type); + keymacro_add(el, strF, &arrow[A_K_EN].fun, arrow[A_K_EN].type); + keymacro_add(el, stOA, &arrow[A_K_UP].fun, arrow[A_K_UP].type); + keymacro_add(el, stOB, &arrow[A_K_DN].fun, arrow[A_K_DN].type); + keymacro_add(el, stOC, &arrow[A_K_RT].fun, arrow[A_K_RT].type); + keymacro_add(el, stOD, &arrow[A_K_LT].fun, arrow[A_K_LT].type); + keymacro_add(el, stOH, &arrow[A_K_HO].fun, arrow[A_K_HO].type); + keymacro_add(el, stOF, &arrow[A_K_EN].fun, arrow[A_K_EN].type); + + if (el->el_map.type != MAP_VI) + return; + keymacro_add(el, &strA[1], &arrow[A_K_UP].fun, arrow[A_K_UP].type); + keymacro_add(el, &strB[1], &arrow[A_K_DN].fun, arrow[A_K_DN].type); + keymacro_add(el, &strC[1], &arrow[A_K_RT].fun, arrow[A_K_RT].type); + keymacro_add(el, &strD[1], &arrow[A_K_LT].fun, arrow[A_K_LT].type); + keymacro_add(el, &strH[1], &arrow[A_K_HO].fun, arrow[A_K_HO].type); + keymacro_add(el, &strF[1], &arrow[A_K_EN].fun, arrow[A_K_EN].type); + keymacro_add(el, &stOA[1], &arrow[A_K_UP].fun, arrow[A_K_UP].type); + keymacro_add(el, &stOB[1], &arrow[A_K_DN].fun, arrow[A_K_DN].type); + keymacro_add(el, &stOC[1], &arrow[A_K_RT].fun, arrow[A_K_RT].type); + keymacro_add(el, &stOD[1], &arrow[A_K_LT].fun, arrow[A_K_LT].type); + keymacro_add(el, &stOH[1], &arrow[A_K_HO].fun, arrow[A_K_HO].type); + keymacro_add(el, &stOF[1], &arrow[A_K_EN].fun, arrow[A_K_EN].type); +} + + +/* terminal_set_arrow(): + * Set an arrow key binding + */ +libedit_private int +terminal_set_arrow(EditLine *el, const wchar_t *name, keymacro_value_t *fun, + int type) +{ + funckey_t *arrow = el->el_terminal.t_fkey; + int i; + + for (i = 0; i < A_K_NKEYS; i++) + if (wcscmp(name, arrow[i].name) == 0) { + arrow[i].fun = *fun; + arrow[i].type = type; + return 0; + } + return -1; +} + + +/* terminal_clear_arrow(): + * Clear an arrow key binding + */ +libedit_private int +terminal_clear_arrow(EditLine *el, const wchar_t *name) +{ + funckey_t *arrow = el->el_terminal.t_fkey; + int i; + + for (i = 0; i < A_K_NKEYS; i++) + if (wcscmp(name, arrow[i].name) == 0) { + arrow[i].type = XK_NOD; + return 0; + } + return -1; +} + + +/* terminal_print_arrow(): + * Print the arrow key bindings + */ +libedit_private void +terminal_print_arrow(EditLine *el, const wchar_t *name) +{ + int i; + funckey_t *arrow = el->el_terminal.t_fkey; + + for (i = 0; i < A_K_NKEYS; i++) + if (*name == '\0' || wcscmp(name, arrow[i].name) == 0) + if (arrow[i].type != XK_NOD) + keymacro_kprint(el, arrow[i].name, + &arrow[i].fun, arrow[i].type); +} + + +/* terminal_bind_arrow(): + * Bind the arrow keys + */ +libedit_private void +terminal_bind_arrow(EditLine *el) +{ + el_action_t *map; + const el_action_t *dmap; + int i, j; + char *p; + funckey_t *arrow = el->el_terminal.t_fkey; + + /* Check if the components needed are initialized */ + if (el->el_terminal.t_buf == NULL || el->el_map.key == NULL) + return; + + map = el->el_map.type == MAP_VI ? el->el_map.alt : el->el_map.key; + dmap = el->el_map.type == MAP_VI ? el->el_map.vic : el->el_map.emacs; + + terminal_reset_arrow(el); + + for (i = 0; i < A_K_NKEYS; i++) { + wchar_t wt_str[VISUAL_WIDTH_MAX]; + wchar_t *px; + size_t n; + + p = el->el_terminal.t_str[arrow[i].key]; + if (!p || !*p) + continue; + for (n = 0; n < VISUAL_WIDTH_MAX && p[n]; ++n) + wt_str[n] = p[n]; + while (n < VISUAL_WIDTH_MAX) + wt_str[n++] = '\0'; + px = wt_str; + j = (unsigned char) *p; + /* + * 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 + * ED_SEQUENCE_LEAD_IN + * 2. They are single arrow keys pointing to an + * unassigned key. + */ + if (arrow[i].type == XK_NOD) + keymacro_clear(el, map, px); + else { + if (p[1] && (dmap[j] == map[j] || + map[j] == ED_SEQUENCE_LEAD_IN)) { + keymacro_add(el, px, &arrow[i].fun, + arrow[i].type); + map[j] = ED_SEQUENCE_LEAD_IN; + } else if (map[j] == ED_UNASSIGNED) { + keymacro_clear(el, map, px); + if (arrow[i].type == XK_CMD) + map[j] = arrow[i].fun.cmd; + else + keymacro_add(el, px, &arrow[i].fun, + arrow[i].type); + } + } + } +} + +/* terminal_putc(): + * Add a character + */ +static int +terminal_putc(int c) +{ + if (terminal_outfile == NULL) + return -1; + return fputc(c, terminal_outfile); +} + +static void +terminal_tputs(EditLine *el, const char *cap, int affcnt) +{ +#ifdef _REENTRANT + pthread_mutex_lock(&terminal_mutex); +#endif + terminal_outfile = el->el_outfile; + (void)tputs(cap, affcnt, terminal_putc); +#ifdef _REENTRANT + pthread_mutex_unlock(&terminal_mutex); +#endif +} + +/* terminal__putc(): + * Add a character + */ +libedit_private int +terminal__putc(EditLine *el, wint_t c) +{ + char buf[MB_LEN_MAX +1]; + ssize_t i; + if (c == (wint_t)MB_FILL_CHAR) + return 0; + if (c & EL_LITERAL) + return fputs(literal_get(el, c), el->el_outfile); + i = ct_encode_char(buf, (size_t)MB_LEN_MAX, c); + if (i <= 0) + return (int)i; + buf[i] = '\0'; + return fputs(buf, el->el_outfile); +} + +/* terminal__flush(): + * Flush output + */ +libedit_private void +terminal__flush(EditLine *el) +{ + + (void) fflush(el->el_outfile); +} + +/* terminal_writec(): + * Write the given character out, in a human readable form + */ +libedit_private void +terminal_writec(EditLine *el, wint_t c) +{ + wchar_t visbuf[VISUAL_WIDTH_MAX +1]; + ssize_t vcnt = ct_visual_char(visbuf, VISUAL_WIDTH_MAX, c); + if (vcnt < 0) + vcnt = 0; + visbuf[vcnt] = '\0'; + terminal_overwrite(el, visbuf, (size_t)vcnt); + terminal__flush(el); +} + + +/* terminal_telltc(): + * Print the current termcap characteristics + */ +libedit_private int +/*ARGSUSED*/ +terminal_telltc(EditLine *el, int argc __attribute__((__unused__)), + const wchar_t **argv __attribute__((__unused__))) +{ + const struct termcapstr *t; + char **ts; + + (void) fprintf(el->el_outfile, "\n\tYour terminal has the\n"); + (void) fprintf(el->el_outfile, "\tfollowing characteristics:\n\n"); + (void) fprintf(el->el_outfile, "\tIt has %d columns and %d lines\n", + Val(T_co), Val(T_li)); + (void) fprintf(el->el_outfile, + "\tIt has %s meta key\n", EL_HAS_META ? "a" : "no"); + (void) fprintf(el->el_outfile, + "\tIt can%suse tabs\n", EL_CAN_TAB ? " " : "not "); + (void) fprintf(el->el_outfile, "\tIt %s automatic margins\n", + EL_HAS_AUTO_MARGINS ? "has" : "does not have"); + if (EL_HAS_AUTO_MARGINS) + (void) fprintf(el->el_outfile, "\tIt %s magic margins\n", + EL_HAS_MAGIC_MARGINS ? "has" : "does not have"); + + for (t = tstr, ts = el->el_terminal.t_str; t->name != NULL; t++, ts++) { + const char *ub; + if (*ts && **ts) { + ub = ct_encode_string(ct_visual_string( + ct_decode_string(*ts, &el->el_scratch), + &el->el_visual), &el->el_scratch); + } else { + ub = "(empty)"; + } + (void) fprintf(el->el_outfile, "\t%25s (%s) == %s\n", + t->long_name, t->name, ub); + } + (void) fputc('\n', el->el_outfile); + return 0; +} + + +/* terminal_settc(): + * Change the current terminal characteristics + */ +libedit_private int +/*ARGSUSED*/ +terminal_settc(EditLine *el, int argc __attribute__((__unused__)), + const wchar_t **argv) +{ + const struct termcapstr *ts; + const struct termcapval *tv; + char what[8], how[8]; + + if (argv == NULL || argv[1] == NULL || argv[2] == NULL) + return -1; + + strncpy(what, ct_encode_string(argv[1], &el->el_scratch), sizeof(what)); + what[sizeof(what) - 1] = '\0'; + strncpy(how, ct_encode_string(argv[2], &el->el_scratch), sizeof(how)); + how[sizeof(how) - 1] = '\0'; + + /* + * Do the strings first + */ + for (ts = tstr; ts->name != NULL; ts++) + if (strcmp(ts->name, what) == 0) + break; + + if (ts->name != NULL) { + terminal_alloc(el, ts, how); + terminal_setflags(el); + return 0; + } + /* + * Do the numeric ones second + */ + for (tv = tval; tv->name != NULL; tv++) + if (strcmp(tv->name, what) == 0) + break; + + if (tv->name != NULL) + return -1; + + if (tv == &tval[T_pt] || tv == &tval[T_km] || + tv == &tval[T_am] || tv == &tval[T_xn]) { + if (strcmp(how, "yes") == 0) + el->el_terminal.t_val[tv - tval] = 1; + else if (strcmp(how, "no") == 0) + el->el_terminal.t_val[tv - tval] = 0; + else { + (void) fprintf(el->el_errfile, + "%ls: Bad value `%s'.\n", argv[0], how); + return -1; + } + terminal_setflags(el); + if (terminal_change_size(el, Val(T_li), Val(T_co)) == -1) + return -1; + return 0; + } else { + long i; + char *ep; + + i = strtol(how, &ep, 10); + if (*ep != '\0') { + (void) fprintf(el->el_errfile, + "%ls: Bad value `%s'.\n", argv[0], how); + return -1; + } + el->el_terminal.t_val[tv - tval] = (int) i; + el->el_terminal.t_size.v = Val(T_co); + el->el_terminal.t_size.h = Val(T_li); + if (tv == &tval[T_co] || tv == &tval[T_li]) + if (terminal_change_size(el, Val(T_li), Val(T_co)) + == -1) + return -1; + return 0; + } +} + + +/* terminal_gettc(): + * Get the current terminal characteristics + */ +libedit_private int +/*ARGSUSED*/ +terminal_gettc(EditLine *el, int argc __attribute__((__unused__)), char **argv) +{ + const struct termcapstr *ts; + const struct termcapval *tv; + char *what; + void *how; + + if (argv == NULL || argv[1] == NULL || argv[2] == NULL) + return -1; + + what = argv[1]; + how = argv[2]; + + /* + * Do the strings first + */ + for (ts = tstr; ts->name != NULL; ts++) + if (strcmp(ts->name, what) == 0) + break; + + if (ts->name != NULL) { + *(char **)how = el->el_terminal.t_str[ts - tstr]; + return 0; + } + /* + * Do the numeric ones second + */ + for (tv = tval; tv->name != NULL; tv++) + if (strcmp(tv->name, what) == 0) + break; + + if (tv->name == NULL) + return -1; + + if (tv == &tval[T_pt] || tv == &tval[T_km] || + tv == &tval[T_am] || tv == &tval[T_xn]) { + static char yes[] = "yes"; + static char no[] = "no"; + if (el->el_terminal.t_val[tv - tval]) + *(char **)how = yes; + else + *(char **)how = no; + return 0; + } else { + *(int *)how = el->el_terminal.t_val[tv - tval]; + return 0; + } +} + +/* terminal_echotc(): + * Print the termcap string out with variable substitution + */ +libedit_private int +/*ARGSUSED*/ +terminal_echotc(EditLine *el, int argc __attribute__((__unused__)), + const wchar_t **argv) +{ + char *cap, *scap; + wchar_t *ep; + int arg_need, arg_cols, arg_rows; + int verbose = 0, silent = 0; + char *area; + static const char fmts[] = "%s\n", fmtd[] = "%d\n"; + const struct termcapstr *t; + char buf[TC_BUFSIZE]; + long i; + + area = buf; + + if (argv == NULL || argv[1] == NULL) + return -1; + argv++; + + if (argv[0][0] == '-') { + switch (argv[0][1]) { + case 'v': + verbose = 1; + break; + case 's': + silent = 1; + break; + default: + /* stderror(ERR_NAME | ERR_TCUSAGE); */ + break; + } + argv++; + } + if (!*argv || *argv[0] == '\0') + return 0; + if (wcscmp(*argv, L"tabs") == 0) { + (void) fprintf(el->el_outfile, fmts, EL_CAN_TAB ? "yes" : "no"); + return 0; + } else if (wcscmp(*argv, L"meta") == 0) { + (void) fprintf(el->el_outfile, fmts, Val(T_km) ? "yes" : "no"); + return 0; + } else if (wcscmp(*argv, L"xn") == 0) { + (void) fprintf(el->el_outfile, fmts, EL_HAS_MAGIC_MARGINS ? + "yes" : "no"); + return 0; + } else if (wcscmp(*argv, L"am") == 0) { + (void) fprintf(el->el_outfile, fmts, EL_HAS_AUTO_MARGINS ? + "yes" : "no"); + return 0; + } else if (wcscmp(*argv, L"baud") == 0) { + (void) fprintf(el->el_outfile, fmtd, (int)el->el_tty.t_speed); + return 0; + } else if (wcscmp(*argv, L"rows") == 0 || + wcscmp(*argv, L"lines") == 0) { + (void) fprintf(el->el_outfile, fmtd, Val(T_li)); + return 0; + } else if (wcscmp(*argv, L"cols") == 0) { + (void) fprintf(el->el_outfile, fmtd, Val(T_co)); + return 0; + } + /* + * Try to use our local definition first + */ + scap = NULL; + for (t = tstr; t->name != NULL; t++) + if (strcmp(t->name, + ct_encode_string(*argv, &el->el_scratch)) == 0) { + scap = el->el_terminal.t_str[t - tstr]; + break; + } + if (t->name == NULL) { + /* XXX: some systems' tgetstr needs non const */ + scap = tgetstr(ct_encode_string(*argv, &el->el_scratch), &area); + } + if (!scap || scap[0] == '\0') { + if (!silent) + (void) fprintf(el->el_errfile, + "echotc: Termcap parameter `%ls' not found.\n", + *argv); + return -1; + } + /* + * 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) + (void) fprintf(el->el_errfile, + "echotc: Warning: unknown termcap %% `%c'.\n", + *cap); + /* This is bad, but I won't complain */ + break; + } + + switch (arg_need) { + case 0: + argv++; + if (*argv && *argv[0]) { + if (!silent) + (void) fprintf(el->el_errfile, + "echotc: Warning: Extra argument `%ls'.\n", + *argv); + return -1; + } + terminal_tputs(el, scap, 1); + break; + case 1: + argv++; + if (!*argv || *argv[0] == '\0') { + if (!silent) + (void) fprintf(el->el_errfile, + "echotc: Warning: Missing argument.\n"); + return -1; + } + arg_cols = 0; + i = wcstol(*argv, &ep, 10); + if (*ep != '\0' || i < 0) { + if (!silent) + (void) fprintf(el->el_errfile, + "echotc: Bad value `%ls' for rows.\n", + *argv); + return -1; + } + arg_rows = (int) i; + argv++; + if (*argv && *argv[0]) { + if (!silent) + (void) fprintf(el->el_errfile, + "echotc: Warning: Extra argument `%ls" + "'.\n", *argv); + return -1; + } + terminal_tputs(el, tgoto(scap, arg_cols, arg_rows), 1); + break; + default: + /* This is wrong, but I will ignore it... */ + if (verbose) + (void) fprintf(el->el_errfile, + "echotc: Warning: Too many required arguments (%d).\n", + arg_need); + /* FALLTHROUGH */ + case 2: + argv++; + if (!*argv || *argv[0] == '\0') { + if (!silent) + (void) fprintf(el->el_errfile, + "echotc: Warning: Missing argument.\n"); + return -1; + } + i = wcstol(*argv, &ep, 10); + if (*ep != '\0' || i < 0) { + if (!silent) + (void) fprintf(el->el_errfile, + "echotc: Bad value `%ls' for cols.\n", + *argv); + return -1; + } + arg_cols = (int) i; + argv++; + if (!*argv || *argv[0] == '\0') { + if (!silent) + (void) fprintf(el->el_errfile, + "echotc: Warning: Missing argument.\n"); + return -1; + } + i = wcstol(*argv, &ep, 10); + if (*ep != '\0' || i < 0) { + if (!silent) + (void) fprintf(el->el_errfile, + "echotc: Bad value `%ls' for rows.\n", + *argv); + return -1; + } + arg_rows = (int) i; + if (*ep != '\0') { + if (!silent) + (void) fprintf(el->el_errfile, + "echotc: Bad value `%ls'.\n", *argv); + return -1; + } + argv++; + if (*argv && *argv[0]) { + if (!silent) + (void) fprintf(el->el_errfile, + "echotc: Warning: Extra argument `%ls" + "'.\n", *argv); + return -1; + } + terminal_tputs(el, tgoto(scap, arg_cols, arg_rows), arg_rows); + break; + } + return 0; +} |