83 lines
2.3 KiB
C
83 lines
2.3 KiB
C
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#include "shell.h"
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extern cmd_tbl_t *_syscall_table_begin;
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extern cmd_tbl_t *_syscall_table_end;
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/*!
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* @brief help command.
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*/
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int DoHelp(int argc, char * const argv[])
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{
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uint8_t i;
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const cmd_tbl_t * cmdp;
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if (argc == 1)
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{
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i = 0;
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for(cmdp = _syscall_table_begin; cmdp < _syscall_table_end; cmdp++)
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{
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shell_printf("%-*s(%d)- %s\r\n", 8, cmdp->name, i++, cmdp->usage);
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}
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}
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if (argc == 2)
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{
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i = 0;
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for(cmdp = _syscall_table_begin; cmdp < _syscall_table_end; cmdp++)
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{
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if (!strcmp(argv[1], cmdp->name))
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{
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if (cmdp->help != NULL)
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{
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shell_printf("%-*s- %s\r\n", 8, cmdp->name, cmdp->help);
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return CMD_RET_SUCCESS;
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}
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else
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{
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shell_printf ("- No additional help available.\r\n");
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return CMD_RET_SUCCESS;
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}
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}
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}
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shell_printf ("- No command available.\r\n");
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}
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return CMD_RET_SUCCESS;
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}
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/*!
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* @brief help command auto complete function.
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*/
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static int DoHelpComplete(int argc, char * const argv[], char last_char, int maxv, char * cmdv[])
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{
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uint8_t str_len;
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uint8_t found = 0;
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str_len = strlen(argv[argc-1]);
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const cmd_tbl_t * cmdp;
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if(argc == 2)
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{
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for(cmdp = _syscall_table_begin; cmdp < _syscall_table_end; cmdp++)
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{
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if (!strncmp(argv[argc-1], cmdp->name, str_len))
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{
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cmdv[found] = cmdp->name;
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found++;
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}
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}
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}
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return found;
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}
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const cmd_tbl_t __fsym_help SECTION("FSymTab")=
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{
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"help",
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8,
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0,
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DoHelp,
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"print command description/usage",
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"\r\n"
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" - print brief description of all commands\r\n"
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"help <command>\r\n"
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" - print detailed usage of 'command'\r\n",
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DoHelpComplete,
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};
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