diff options
Diffstat (limited to 'usr.bin/tmux/arg.c')
| -rw-r--r-- | usr.bin/tmux/arg.c | 194 |
1 files changed, 194 insertions, 0 deletions
diff --git a/usr.bin/tmux/arg.c b/usr.bin/tmux/arg.c new file mode 100644 index 00000000000..47603b3a405 --- /dev/null +++ b/usr.bin/tmux/arg.c @@ -0,0 +1,194 @@ +/* $OpenBSD: arg.c,v 1.1 2009/06/01 22:58:49 nicm Exp $ */ + +/* + * Copyright (c) 2008 Nicholas Marriott <nicm@users.sourceforge.net> + * + * Permission to use, copy, modify, and distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER + * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING + * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +#include <sys/types.h> + +#include <fnmatch.h> +#include <stdlib.h> +#include <string.h> + +#include "tmux.h" + +struct client *arg_lookup_client(const char *); +struct session *arg_lookup_session(const char *); + +struct client * +arg_lookup_client(const char *name) +{ + struct client *c; + u_int i; + + for (i = 0; i < ARRAY_LENGTH(&clients); i++) { + c = ARRAY_ITEM(&clients, i); + if (c != NULL && strcmp(name, c->tty.path) == 0) + return (c); + } + + return (NULL); +} + +struct session * +arg_lookup_session(const char *name) +{ + struct session *s, *newest = NULL; + struct timeval *tv; + u_int i; + + tv = NULL; + for (i = 0; i < ARRAY_LENGTH(&sessions); i++) { + s = ARRAY_ITEM(&sessions, i); + if (s == NULL || fnmatch(name, s->name, 0) != 0) + continue; + + if (tv == NULL || timercmp(&s->tv, tv, >)) { + newest = s; + tv = &s->tv; + } + } + + return (newest); +} + +struct client * +arg_parse_client(const char *arg) +{ + struct client *c; + char *arg2; + size_t n; + + if (arg != NULL && (arg[0] != ':' || arg[1] != '\0')) { + arg2 = xstrdup(arg); + + /* Trim a trailing : if any from the argument. */ + n = strlen(arg2); + if (arg2[n - 1] == ':') + arg2[n - 1] = '\0'; + + /* Try and look up the client name. */ + c = arg_lookup_client(arg2); + xfree(arg2); + return (c); + } + + return (NULL); +} + +struct session * +arg_parse_session(const char *arg) +{ + struct session *s; + struct client *c; + char *arg2; + size_t n; + + if (arg != NULL && (arg[0] != ':' || arg[1] != '\0')) { + arg2 = xstrdup(arg); + + /* Trim a trailing : if any from the argument. */ + n = strlen(arg2); + if (arg2[n - 1] == ':') + arg2[n - 1] = '\0'; + + /* See if the argument matches a session. */ + if ((s = arg_lookup_session(arg2)) != NULL) { + xfree(arg2); + return (s); + } + + /* If not try a client. */ + if ((c = arg_lookup_client(arg2)) != NULL) { + xfree(arg2); + return (c->session); + } + + xfree(arg2); + } + + return (NULL); +} + +int +arg_parse_window(const char *arg, struct session **s, int *idx) +{ + char *arg2, *ptr; + const char *errstr; + + *idx = -1; + + /* Handle no argument or a single :. */ + if (arg == NULL || (arg[0] == ':' && arg[1] == '\0')) { + *s = arg_parse_session(NULL); + return (0); + } + + /* Find the separator if any. */ + arg2 = xstrdup(arg); + ptr = strrchr(arg2, ':'); + + /* + * If it is first, this means no session name, so use current session + * and try to convert the rest as index. + */ + if (ptr == arg2) { + *idx = strtonum(ptr + 1, 0, INT_MAX, &errstr); + if (errstr != NULL) { + xfree(arg2); + return (1); + } + + xfree(arg2); + *s = arg_parse_session(NULL); + return (0); + } + + /* If missing, try as an index, else look up immediately. */ + if (ptr == NULL) { + *idx = strtonum(arg2, 0, INT_MAX, &errstr); + if (errstr == NULL) { + /* This is good as an index; use current session. */ + xfree(arg2); + *s = arg_parse_session(NULL); + return (0); + } + + *idx = -1; + goto lookup; + } + + /* If last, strip it and look up as a session. */ + if (ptr[1] == '\0') { + *ptr = '\0'; + goto lookup; + } + + /* Present but not first and not last. Break and convert both. */ + *ptr = '\0'; + *idx = strtonum(ptr + 1, 0, INT_MAX, &errstr); + if (errstr != NULL) { + xfree(arg2); + return (1); + } + +lookup: + /* Look up as session. */ + *s = arg_parse_session(arg2); + xfree(arg2); + if (*s == NULL) + return (1); + return (0); +} |