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examples/fileman.c: Further code cleanup and simplification

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Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
This commit is contained in:
Joachim Nilsson 2018-12-31 22:51:39 +01:00
parent a237e39181
commit 8f5a5da754
1 changed files with 28 additions and 33 deletions
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33
examples/fileman.c
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@ -26,8 +26,6 @@ void initialize_readline();
int execute_line(char *line);
int valid_argument(char *caller, char *arg);
typedef int rl_icpfunc_t(char *);
/* The names of functions that actually do the manipulation. */
int com_list(char *);
int com_view(char *);
@ -40,16 +38,13 @@ int com_help(char *);
int com_cd(char *);
int com_quit(char *);
/* A structure which contains information on the commands this program
can understand. */
typedef struct {
struct cmd {
char *name; /* User printable name of the function. */
rl_icpfunc_t *func; /* Function to call to do the job. */
int (*func)(char *); /* Function to call to do the job. */
char *doc; /* Documentation for this function. */
} COMMAND;
};
COMMAND commands[] = {
struct cmd commands[] = {
{ "cd", com_cd, "Change to directory DIR"},
{ "delete", com_delete, "Delete FILE"},
{ "help", com_help, "Display this text"},
@ -62,17 +57,17 @@ COMMAND commands[] = {
{ "stat", com_stat, "Print out statistics on FILE"},
{ "view", com_view, "View the contents of FILE"},
{ "history", com_history, "List editline history"},
{(char *)NULL, (rl_icpfunc_t *) NULL, (char *)NULL}
{ NULL, NULL, NULL },
};
/* Forward declarations. */
char *stripwhite();
COMMAND *find_command();
struct cmd *find_command();
/* When non-zero, this means the user is done using this program. */
int done;
int main(int argc __attribute__ ((__unused__)), char **argv)
int main(int argc, char **argv)
{
char *line, *s;
@ -119,7 +114,7 @@ int main(int argc __attribute__ ((__unused__)), char **argv)
int execute_line(char *line)
{
int i;
COMMAND *command;
struct cmd *command;
char *word;
/* Isolate the command word. */
@ -153,7 +148,7 @@ int execute_line(char *line)
/* Look up NAME as the name of a command, and return a pointer to that
command. Return a NULL pointer if NAME isn't a command name. */
COMMAND *find_command(char *name)
struct cmd *find_command(char *name)
{
int i;
@ -288,7 +283,7 @@ int com_view(char *arg)
return system(syscom);
}
int com_history(char *arg __attribute__ ((__unused__)))
int com_history(char *arg)
{
const char *he;
@ -301,7 +296,7 @@ int com_history(char *arg __attribute__ ((__unused__)))
return 0;
}
int com_rename(char *arg __attribute__ ((__unused__)))
int com_rename(char *arg)
{
too_dangerous("rename");
return 1;
@ -332,7 +327,7 @@ int com_stat(char *arg)
return 0;
}
int com_delete(char *arg __attribute__ ((__unused__)))
int com_delete(char *arg)
{
too_dangerous("delete");
return 1;
@ -387,7 +382,7 @@ int com_cd(char *arg)
}
/* Print out the current working directory. */
int com_pwd(char *ignore __attribute__ ((__unused__)))
int com_pwd(char *ignore)
{
char dir[1024], *s;
@ -403,7 +398,7 @@ int com_pwd(char *ignore __attribute__ ((__unused__)))
/* The user wishes to quit using this program. Just set DONE
non-zero. */
int com_quit(char *arg __attribute__ ((__unused__)))
int com_quit(char *arg)
{
done = 1;
return 0;