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top(1): format help more nicely

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For entries that are duplicates present them nicely rather than showing
two identical help entries. For ' ' present it as SPC
This commit is contained in:
Eitan Adler committed 2018-06-13 08:52:06 +00:00
1 parent baab2cf821
commit e7cb1c0776
1 file changed
+22 -5
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=335037
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usr.bin/top/commands.c
+22 -5
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@@ -57,16 +57,16 @@ const struct command all_commands[] =
{'e', "list errors generated by last \"kill\" or \"renice\" command", false, CMD_errors},
{'H', "toggle the displaying of threads", false, CMD_thrtog},
{'h', "show this help text", true, CMD_help},
{'?', "show this help text", true, CMD_help},
{'?', NULL, true, CMD_help},
{'i', "toggle the displaying of idle processes", false, CMD_idletog},
{'I', "toggle the displaying of idle processes", false, CMD_idletog},
{'I', NULL, false, CMD_idletog},
{'j', "toggle the displaying of jail ID", false, CMD_jidtog},
{'J', "display processes for only one jail (+ selects all jails)", false, CMD_jail},
{'k', "kill processes; send a signal to a list of processes", false, CMD_kill},
{'q', "quit" , true, CMD_quit},
{'m', "toggle the display between 'cpu' and 'io' modes", false, CMD_viewtog},
{'n', "change number of processes to display", false, CMD_number},
{'#', "change number of processes to display", false, CMD_number},
{'#', NULL, false, CMD_number},
{'o', "specify the sort order", false, CMD_order},
{'p', "display one process (+ selects all processes)", false, CMD_pid},
{'P', "toggle the displaying of per-CPU statistics", false, CMD_pcputog},
@@ -86,7 +86,9 @@ const struct command all_commands[] =
void
show_help(void)
{
const struct command *curcmd;
const struct command *curcmd, *nextcmd;
char keys[8] = "";
_Static_assert(sizeof(keys) >= sizeof("a or b"), "keys right size");
printf("Top version FreeBSD, %s\n", copyright);
curcmd = all_commands;
@@ -95,7 +97,22 @@ show_help(void)
++curcmd;
continue;
}
printf("%c\t- %s\n", curcmd->c, curcmd->desc);
if (curcmd->desc == NULL) {
/* we already printed this */
++curcmd;
continue;
}
nextcmd = curcmd + 1;
if (nextcmd->desc == NULL && nextcmd->c != '\0') {
sprintf(keys, "%c or %c", curcmd->c, nextcmd->c);
} else if (curcmd->c == ' '){
/* special case space rather than introducing a "display string" to
* the struct */
sprintf(keys, "SPC");
} else {
sprintf(keys, "%c", curcmd->c);
}
printf("%s\t- %s\n", keys, curcmd->desc);
++curcmd;
}
if (overstrike)