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98b846c8b1
Instead merge afd8b4de9dca8ec6afc3 from http://github.com/heimdal/heimdal.git project. This lets rl_complete() and rl_list_possib() become wrapper functions calling a set of function pointers, set using rl_set_complete_func() and rl_set_list_possib_funct(). Each wrapper has a fallback to do filename completion, which in turn can be disabled by leaving out --enable-default-complete from the configure line. This change, admittedly quite intrusive for a library, is a better implementation in many ways. For one it is much more readable, but it also enables further adoption of other editline forks as well as a simpler implementation of GNU Readline function pointers rl_completion_entry_function and rl_attempted_completion_function at a later stage. My apologies to everyone for whom this change breaks backwards compatibility. For help on converting your code, please see examples/cli.c.
97 lines
2.6 KiB
C
97 lines
2.6 KiB
C
/* Custom CLI command completion.
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*
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* Copyright (c) 1992, 1993 Simmule Turner and Rich Salz. All rights reserved.
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*
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* This software is not subject to any license of the American Telephone
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* and Telegraph Company or of the Regents of the University of California.
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*
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* Permission is granted to anyone to use this software for any purpose on
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* any computer system, and to alter it and redistribute it freely, subject
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* to the following restrictions:
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* 1. The authors are not responsible for the consequences of use of this
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* software, no matter how awful, even if they arise from flaws in it.
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* 2. The origin of this software must not be misrepresented, either by
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* explicit claim or by omission. Since few users ever read sources,
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* credits must appear in the documentation.
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* 3. Altered versions must be plainly marked as such, and must not be
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* misrepresented as being the original software. Since few users
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* ever read sources, credits must appear in the documentation.
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* 4. This notice may not be removed or altered.
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*/
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#include "editline.h"
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#include <string.h>
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static char *list[] = {
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"foo ", "bar ", "bsd ", "cli ", "ls ", "cd ", "malloc ", "tee ", NULL
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};
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/* Attempt to complete the pathname, returning an allocated copy.
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* Fill in *unique if we completed it, or set it to 0 if ambiguous. */
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static char *my_rl_complete(char *token, int *match)
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{
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int i;
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int index = -1;
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int matchlen = 0;
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int count = 0;
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for (i = 0; list[i]; i++)
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{
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int partlen = strlen (token); /* Part of token */
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if (!strncmp (list[i], token, partlen))
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{
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index = i;
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matchlen = partlen;
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count ++;
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}
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}
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if (count == 1)
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{
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*match = 1;
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return strdup (list[index] + matchlen);
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}
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return NULL;
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}
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/* Return all possible completions. */
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static int my_rl_list_possib(char *token, char ***av)
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{
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int i, num, total = 0;
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char **copy;
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for (num = 0; list[num]; num++)
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;
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copy = (char **) malloc (num * sizeof(char *));
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for (i = 0; i < num; i++)
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{
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if (!strncmp (list[i], token, strlen (token)))
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{
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copy[total] = strdup (list[i]);
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total ++;
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}
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}
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*av = copy;
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return total;
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}
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int main(int ac __attribute__ ((unused)), char *av[] __attribute__ ((unused)))
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{
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char *line;
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char *prompt = "cli> ";
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/* Setup callbacks */
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rl_set_complete_func(&my_rl_complete);
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rl_set_list_possib_func(&my_rl_list_possib);
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while ((line = readline(prompt)) != NULL) {
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(void)printf("\t\t\t|%s|\n", line);
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free(line);
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}
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return 0;
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}
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