diff options
Diffstat (limited to '')
| -rw-r--r-- | bin/cash/libedit/eln.c | 388 |
1 files changed, 388 insertions, 0 deletions
diff --git a/bin/cash/libedit/eln.c b/bin/cash/libedit/eln.c new file mode 100644 index 00000000..aa0a5b56 --- /dev/null +++ b/bin/cash/libedit/eln.c @@ -0,0 +1,388 @@ +/* $NetBSD: eln.c,v 1.34 2016/05/09 21:37:34 christos Exp $ */ + +/*- + * Copyright (c) 2009 The NetBSD Foundation, Inc. + * 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. + * + * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. 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 FOUNDATION 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) +__RCSID("$NetBSD: eln.c,v 1.34 2016/05/09 21:37:34 christos Exp $"); +#endif /* not lint && not SCCSID */ + +#include <errno.h> +#include <stdarg.h> +#include <stdio.h> +#include <stdlib.h> + +#include "el.h" + +int +el_getc(EditLine *el, char *cp) +{ + int num_read; + wchar_t wc = 0; + + num_read = el_wgetc(el, &wc); + *cp = '\0'; + if (num_read <= 0) + return num_read; + num_read = wctob(wc); + if (num_read == EOF) { + errno = ERANGE; + return -1; + } else { + *cp = (char)num_read; + return 1; + } +} + + +void +el_push(EditLine *el, const char *str) +{ + /* Using multibyte->wide string decoding works fine under single-byte + * character sets too, and Does The Right Thing. */ + el_wpush(el, ct_decode_string(str, &el->el_lgcyconv)); +} + + +const char * +el_gets(EditLine *el, int *nread) +{ + const wchar_t *tmp; + + tmp = el_wgets(el, nread); + if (tmp != NULL) { + int i; + size_t nwread = 0; + + for (i = 0; i < *nread; i++) + nwread += ct_enc_width(tmp[i]); + *nread = (int)nwread; + } + return ct_encode_string(tmp, &el->el_lgcyconv); +} + + +int +el_parse(EditLine *el, int argc, const char *argv[]) +{ + int ret; + const wchar_t **wargv; + + wargv = (void *)ct_decode_argv(argc, argv, &el->el_lgcyconv); + if (!wargv) + return -1; + ret = el_wparse(el, argc, wargv); + el_free(wargv); + + return ret; +} + + +int +el_set(EditLine *el, int op, ...) +{ + va_list ap; + int ret; + + if (!el) + return -1; + va_start(ap, op); + + switch (op) { + case EL_PROMPT: /* el_pfunc_t */ + case EL_RPROMPT: { + el_pfunc_t p = va_arg(ap, el_pfunc_t); + ret = prompt_set(el, p, 0, op, 0); + break; + } + + case EL_RESIZE: { + el_zfunc_t p = va_arg(ap, el_zfunc_t); + void *arg = va_arg(ap, void *); + ret = ch_resizefun(el, p, arg); + break; + } + + case EL_ALIAS_TEXT: { + el_afunc_t p = va_arg(ap, el_afunc_t); + void *arg = va_arg(ap, void *); + ret = ch_aliasfun(el, p, arg); + break; + } + + case EL_PROMPT_ESC: + case EL_RPROMPT_ESC: { + el_pfunc_t p = va_arg(ap, el_pfunc_t); + int c = va_arg(ap, int); + + ret = prompt_set(el, p, c, op, 0); + break; + } + + case EL_TERMINAL: /* const char * */ + ret = el_wset(el, op, va_arg(ap, char *)); + break; + + case EL_EDITOR: /* const wchar_t * */ + ret = el_wset(el, op, ct_decode_string(va_arg(ap, char *), + &el->el_lgcyconv)); + break; + + case EL_SIGNAL: /* int */ + case EL_EDITMODE: + case EL_UNBUFFERED: + case EL_PREP_TERM: + ret = el_wset(el, op, va_arg(ap, int)); + break; + + case EL_BIND: /* const char * list -> const wchar_t * list */ + case EL_TELLTC: + case EL_SETTC: + case EL_ECHOTC: + case EL_SETTY: { + const char *argv[20]; + int i; + const wchar_t **wargv; + for (i = 1; i < (int)__arraycount(argv) - 1; ++i) + if ((argv[i] = va_arg(ap, const char *)) == NULL) + break; + argv[0] = argv[i] = NULL; + wargv = (void *)ct_decode_argv(i + 1, argv, &el->el_lgcyconv); + if (!wargv) { + ret = -1; + goto out; + } + /* + * AFAIK we can't portably pass through our new wargv to + * el_wset(), so we have to reimplement the body of + * el_wset() for these ops. + */ + switch (op) { + case EL_BIND: + wargv[0] = L"bind"; + ret = map_bind(el, i, wargv); + break; + case EL_TELLTC: + wargv[0] = L"telltc"; + ret = terminal_telltc(el, i, wargv); + break; + case EL_SETTC: + wargv[0] = L"settc"; + ret = terminal_settc(el, i, wargv); + break; + case EL_ECHOTC: + wargv[0] = L"echotc"; + ret = terminal_echotc(el, i, wargv); + break; + case EL_SETTY: + wargv[0] = L"setty"; + ret = tty_stty(el, i, wargv); + break; + default: + ret = -1; + } + el_free(wargv); + break; + } + + /* XXX: do we need to change el_func_t too? */ + case EL_ADDFN: { /* const char *, const char *, el_func_t */ + const char *args[2]; + el_func_t func; + wchar_t **wargv; + + args[0] = va_arg(ap, const char *); + args[1] = va_arg(ap, const char *); + func = va_arg(ap, el_func_t); + + wargv = ct_decode_argv(2, args, &el->el_lgcyconv); + if (!wargv) { + ret = -1; + goto out; + } + /* XXX: The two strdup's leak */ + ret = map_addfunc(el, wcsdup(wargv[0]), wcsdup(wargv[1]), + func); + el_free(wargv); + break; + } + case EL_HIST: { /* hist_fun_t, const char * */ + hist_fun_t fun = va_arg(ap, hist_fun_t); + void *ptr = va_arg(ap, void *); + ret = hist_set(el, fun, ptr); + el->el_flags |= NARROW_HISTORY; + break; + } + + case EL_GETCFN: /* el_rfunc_t */ + ret = el_wset(el, op, va_arg(ap, el_rfunc_t)); + break; + + case EL_CLIENTDATA: /* void * */ + ret = el_wset(el, op, va_arg(ap, void *)); + break; + + case EL_SETFP: { /* int, FILE * */ + int what = va_arg(ap, int); + FILE *fp = va_arg(ap, FILE *); + ret = el_wset(el, op, what, fp); + break; + } + + case EL_REFRESH: + re_clear_display(el); + re_refresh(el); + terminal__flush(el); + ret = 0; + break; + + default: + ret = -1; + break; + } + +out: + va_end(ap); + return ret; +} + + +int +el_get(EditLine *el, int op, ...) +{ + va_list ap; + int ret; + + if (!el) + return -1; + + va_start(ap, op); + + switch (op) { + case EL_PROMPT: /* el_pfunc_t * */ + case EL_RPROMPT: { + el_pfunc_t *p = va_arg(ap, el_pfunc_t *); + ret = prompt_get(el, p, 0, op); + break; + } + + case EL_PROMPT_ESC: /* el_pfunc_t *, char **/ + case EL_RPROMPT_ESC: { + el_pfunc_t *p = va_arg(ap, el_pfunc_t *); + char *c = va_arg(ap, char *); + wchar_t wc = 0; + ret = prompt_get(el, p, &wc, op); + *c = (char)wc; + break; + } + + case EL_EDITOR: { + const char **p = va_arg(ap, const char **); + const wchar_t *pw; + ret = el_wget(el, op, &pw); + *p = ct_encode_string(pw, &el->el_lgcyconv); + if (!el->el_lgcyconv.csize) + ret = -1; + break; + } + + case EL_TERMINAL: /* const char ** */ + ret = el_wget(el, op, va_arg(ap, const char **)); + break; + + case EL_SIGNAL: /* int * */ + case EL_EDITMODE: + case EL_UNBUFFERED: + case EL_PREP_TERM: + ret = el_wget(el, op, va_arg(ap, int *)); + break; + + case EL_GETTC: { + char *argv[20]; + static char gettc[] = "gettc"; + int i; + for (i = 1; i < (int)__arraycount(argv); ++i) + if ((argv[i] = va_arg(ap, char *)) == NULL) + break; + argv[0] = gettc; + ret = terminal_gettc(el, i, argv); + break; + } + + case EL_GETCFN: /* el_rfunc_t */ + ret = el_wget(el, op, va_arg(ap, el_rfunc_t *)); + break; + + case EL_CLIENTDATA: /* void ** */ + ret = el_wget(el, op, va_arg(ap, void **)); + break; + + case EL_GETFP: { /* int, FILE ** */ + int what = va_arg(ap, int); + FILE **fpp = va_arg(ap, FILE **); + ret = el_wget(el, op, what, fpp); + break; + } + + default: + ret = -1; + break; + } + + va_end(ap); + return ret; +} + + +const LineInfo * +el_line(EditLine *el) +{ + const LineInfoW *winfo = el_wline(el); + LineInfo *info = &el->el_lgcylinfo; + size_t offset; + const wchar_t *p; + + info->buffer = ct_encode_string(winfo->buffer, &el->el_lgcyconv); + + offset = 0; + for (p = winfo->buffer; p < winfo->cursor; p++) + offset += ct_enc_width(*p); + info->cursor = info->buffer + offset; + + offset = 0; + for (p = winfo->buffer; p < winfo->lastchar; p++) + offset += ct_enc_width(*p); + info->lastchar = info->buffer + offset; + + return info; +} + + +int +el_insertstr(EditLine *el, const char *str) +{ + return el_winsertstr(el, ct_decode_string(str, &el->el_lgcyconv)); +} |