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Diffstat (limited to 'bin/1sh/libedit/parse.c')
| -rw-r--r-- | bin/1sh/libedit/parse.c | 289 |
1 files changed, 0 insertions, 289 deletions
diff --git a/bin/1sh/libedit/parse.c b/bin/1sh/libedit/parse.c deleted file mode 100644 index fdd0d847..00000000 --- a/bin/1sh/libedit/parse.c +++ /dev/null @@ -1,289 +0,0 @@ -/* $NetBSD: parse.c,v 1.40 2016/05/09 21:46:56 christos 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[] = "@(#)parse.c 8.1 (Berkeley) 6/4/93"; -#else -__RCSID("$NetBSD: parse.c,v 1.40 2016/05/09 21:46:56 christos Exp $"); -#endif -#endif /* not lint && not SCCSID */ - -/* - * parse.c: parse an editline extended command - * - * commands are: - * - * bind - * echotc - * edit - * gettc - * history - * settc - * setty - */ -#include <stdlib.h> -#include <string.h> - -#include "el.h" -#include "parse.h" - -static const struct { - const wchar_t *name; - int (*func)(EditLine *, int, const wchar_t **); -} cmds[] = { - { L"bind", map_bind }, - { L"echotc", terminal_echotc }, - { L"edit", el_editmode }, - { L"history", hist_command }, - { L"telltc", terminal_telltc }, - { L"settc", terminal_settc }, - { L"setty", tty_stty }, - { NULL, NULL } -}; - - -/* parse_line(): - * Parse a line and dispatch it - */ -libedit_private int -parse_line(EditLine *el, const wchar_t *line) -{ - const wchar_t **argv; - int argc; - TokenizerW *tok; - - tok = tok_winit(NULL); - tok_wstr(tok, line, &argc, &argv); - argc = el_wparse(el, argc, argv); - tok_wend(tok); - return argc; -} - - -/* el_parse(): - * Command dispatcher - */ -int -el_wparse(EditLine *el, int argc, const wchar_t *argv[]) -{ - const wchar_t *ptr; - int i; - - if (argc < 1) - return -1; - ptr = wcschr(argv[0], L':'); - if (ptr != NULL) { - wchar_t *tprog; - size_t l; - - if (ptr == argv[0]) - return 0; - l = (size_t)(ptr - argv[0] - 1); - tprog = el_malloc((l + 1) * sizeof(*tprog)); - if (tprog == NULL) - return 0; - (void) wcsncpy(tprog, argv[0], l); - tprog[l] = '\0'; - ptr++; - l = (size_t)el_match(el->el_prog, tprog); - el_free(tprog); - if (!l) - return 0; - } else - ptr = argv[0]; - - for (i = 0; cmds[i].name != NULL; i++) - if (wcscmp(cmds[i].name, ptr) == 0) { - i = (*cmds[i].func) (el, argc, argv); - return -i; - } - return -1; -} - - -/* parse__escape(): - * Parse a string of the form ^<char> \<odigit> \<char> \U+xxxx and return - * the appropriate character or -1 if the escape is not valid - */ -libedit_private int -parse__escape(const wchar_t **ptr) -{ - const wchar_t *p; - wint_t c; - - p = *ptr; - - if (p[1] == 0) - return -1; - - if (*p == '\\') { - p++; - switch (*p) { - case 'a': - c = '\007'; /* Bell */ - break; - case 'b': - c = '\010'; /* Backspace */ - break; - case 't': - c = '\011'; /* Horizontal Tab */ - break; - case 'n': - c = '\012'; /* New Line */ - break; - case 'v': - c = '\013'; /* Vertical Tab */ - break; - case 'f': - c = '\014'; /* Form Feed */ - break; - case 'r': - c = '\015'; /* Carriage Return */ - break; - case 'e': - c = '\033'; /* Escape */ - break; - case 'U': /* Unicode \U+xxxx or \U+xxxxx format */ - { - int i; - const wchar_t hex[] = L"0123456789ABCDEF"; - const wchar_t *h; - ++p; - if (*p++ != '+') - return -1; - c = 0; - for (i = 0; i < 5; ++i) { - h = wcschr(hex, *p++); - if (!h && i < 4) - return -1; - else if (h) - c = (c << 4) | ((int)(h - hex)); - else - --p; - } - if (c > 0x10FFFF) /* outside valid character range */ - return -1; - break; - } - case '0': - case '1': - case '2': - case '3': - case '4': - case '5': - case '6': - case '7': - { - int cnt, ch; - - for (cnt = 0, c = 0; cnt < 3; cnt++) { - ch = *p++; - if (ch < '0' || ch > '7') { - p--; - break; - } - c = (c << 3) | (ch - '0'); - } - if ((c & (wint_t)0xffffff00) != (wint_t)0) - return -1; - --p; - break; - } - default: - c = *p; - break; - } - } else if (*p == '^') { - p++; - c = (*p == '?') ? '\177' : (*p & 0237); - } else - c = *p; - *ptr = ++p; - return c; -} - -/* parse__string(): - * Parse the escapes from in and put the raw string out - */ -libedit_private wchar_t * -parse__string(wchar_t *out, const wchar_t *in) -{ - wchar_t *rv = out; - int n; - - for (;;) - switch (*in) { - case '\0': - *out = '\0'; - return rv; - - case '\\': - case '^': - if ((n = parse__escape(&in)) == -1) - return NULL; - *out++ = (wchar_t)n; - break; - - case 'M': - if (in[1] == '-' && in[2] != '\0') { - *out++ = '\033'; - in += 2; - break; - } - /*FALLTHROUGH*/ - - default: - *out++ = *in++; - break; - } -} - - -/* parse_cmd(): - * Return the command number for the command string given - * or -1 if one is not found - */ -libedit_private int -parse_cmd(EditLine *el, const wchar_t *cmd) -{ - el_bindings_t *b = el->el_map.help; - size_t i; - - for (i = 0; i < el->el_map.nfunc; i++) - if (wcscmp(b[i].name, cmd) == 0) - return b[i].func; - return -1; -} |