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rigctl_parse.c: Implement history recall 

Implement first cut at storing and recalling history.  At this point
history is retained for the current session only.

History is stored as complete command lines even if values are entered
at separate prompts.  Readline allows editing and even deleting recalled
history lines.
Hamlib-3.0
Nate Bargmann 2013-02-18 20:42:42 -06:00
rodzic d54d737ba5
commit 978a269689
2 zmienionych plików z 90 dodań i 1 usunięć
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16
tests/rigctl.c
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@ -48,6 +48,19 @@ extern char *readline ();
/* no readline */
#endif /* HAVE_LIBREADLINE */
#ifdef HAVE_READLINE_HISTORY
# if defined(HAVE_READLINE_HISTORY_H)
# include <readline/history.h>
# elif defined(HAVE_HISTORY_H)
# include <history.h>
# else /* !defined(HAVE_HISTORY_H) */
extern void add_history ();
extern int write_history ();
extern int read_history ();
# endif /* defined(HAVE_READLINE_HISTORY_H) */
/* no history */
#endif /* HAVE_READLINE_HISTORY */
#include <hamlib/rig.h>
#include "misc.h"
@ -351,6 +364,9 @@ int main (int argc, char *argv[])
if (interactive && prompt && have_rl) {
rl_readline_name = "rigctl";
#ifdef HAVE_READLINE_HISTORY
using_history();
#endif
}
#endif /* HAVE_LIBREADLINE */

75
tests/rigctl_parse.c
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@ -48,6 +48,19 @@ extern char *readline ();
/* no readline */
#endif /* HAVE_LIBREADLINE */
#ifdef HAVE_READLINE_HISTORY
# if defined(HAVE_READLINE_HISTORY_H)
# include <readline/history.h>
# elif defined(HAVE_HISTORY_H)
# include <history.h>
# else /* !defined(HAVE_HISTORY_H) */
extern void add_history ();
extern int write_history ();
extern int read_history ();
# endif /* defined(HAVE_READLINE_HISTORY_H) */
/* no history */
#endif /* HAVE_READLINE_HISTORY */
#include <hamlib/rig.h>
#include "misc.h"
@ -90,6 +103,11 @@ static char *input_line = (char *)NULL;
static char *result = (char *)NULL;
static char *parsed_input[sizeof(char) * 5];
static const int have_rl = 1;
#ifdef HAVE_READLINE_HISTORY
static char *rp_hist_buf = (char *)NULL;
#endif
#else /* no readline */
static const int have_rl = 0;
#endif
@ -605,6 +623,13 @@ int rigctl_parse(RIG *my_rig, FILE *fin, FILE *fout, char *argv[], int argc)
if (interactive && prompt && have_rl) {
int j, x;
#ifdef HAVE_READLINE_HISTORY
/* Minimum space for 32+1+32+1+128+1+128+1+128+1 = 453 chars, so
* allocate 512 chars cleared to zero for safety.
*/
rp_hist_buf = (char *)calloc(512, sizeof(char));
#endif
rl_instream = fin;
rl_outstream = fout;
@ -659,12 +684,19 @@ int rigctl_parse(RIG *my_rig, FILE *fin, FILE *fout, char *argv[], int argc)
}
/* At this point parsed_input contains the typed text of the command
* with surrounding space characters removed.
* with surrounding space characters removed. If Readline History is
* available, copy the command string into a history buffer.
*/
/* Single character command */
if ((strlen(parsed_input[0]) == 1) && (*parsed_input[0] != '\\')) {
cmd = *parsed_input[0];
#ifdef HAVE_READLINE_HISTORY
/* Store what is typed, not validated, for history. */
if (rp_hist_buf)
strncpy(rp_hist_buf, parsed_input[0], 1);
#endif
}
/* Test the command token, parsed_input[0] */
else if ((*parsed_input[0] == '\\') && (strlen(parsed_input[0]) > 1)) {
@ -677,6 +709,10 @@ int rigctl_parse(RIG *my_rig, FILE *fin, FILE *fout, char *argv[], int argc)
if (strlen(parsed_input[0] + 1) >= MAXNAMSIZ)
*(parsed_input[0] + MAXNAMSIZ) = '\0';
#ifdef HAVE_READLINE_HISTORY
if (rp_hist_buf)
strncpy(rp_hist_buf, parsed_input[0], MAXNAMSIZ);
#endif
/* The starting position of the source string is the first
* character past the initial '\'. Using MAXNAMSIZ for the
* length leaves enough space for the '\0' string terminator in the
@ -763,6 +799,12 @@ int rigctl_parse(RIG *my_rig, FILE *fin, FILE *fout, char *argv[], int argc)
if (strlen(parsed_input[x]) >= MAXNAMSIZ)
*(parsed_input[x] + (MAXNAMSIZ - 1)) = '\0';
#ifdef HAVE_READLINE_HISTORY
if (rp_hist_buf) {
strncat(rp_hist_buf, " ", 1);
strncat(rp_hist_buf, parsed_input[x], MAXNAMSIZ);
}
#endif
/* Sanity check, VFO names are alpha only. */
for (j = 0; j < MAXNAMSIZ && parsed_input[x][j] != '\0'; j++) {
if (!(isalpha(parsed_input[x][j]))) {
@ -822,6 +864,12 @@ int rigctl_parse(RIG *my_rig, FILE *fin, FILE *fout, char *argv[], int argc)
if (strlen(parsed_input[x]) > MAXARGSZ)
parsed_input[x][MAXARGSZ] = '\0';
#ifdef HAVE_READLINE_HISTORY
if (rp_hist_buf) {
strncat(rp_hist_buf, " ", 1);
strncat(rp_hist_buf, parsed_input[x], MAXARGSZ);
}
#endif
strcpy(arg1, parsed_input[x]);
p1 = arg1;
}
@ -864,6 +912,12 @@ int rigctl_parse(RIG *my_rig, FILE *fin, FILE *fout, char *argv[], int argc)
if (strlen(parsed_input[x]) > MAXARGSZ)
parsed_input[x][MAXARGSZ] = '\0';
#ifdef HAVE_READLINE_HISTORY
if (rp_hist_buf) {
strncat(rp_hist_buf, " ", 1);
strncat(rp_hist_buf, parsed_input[x], MAXARGSZ);
}
#endif
strcpy(arg1, parsed_input[x]);
p1 = arg1;
}
@ -904,6 +958,12 @@ int rigctl_parse(RIG *my_rig, FILE *fin, FILE *fout, char *argv[], int argc)
if (strlen(parsed_input[x]) > MAXARGSZ)
parsed_input[x][MAXARGSZ] = '\0';
#ifdef HAVE_READLINE_HISTORY
if (rp_hist_buf) {
strncat(rp_hist_buf, " ", 1);
strncat(rp_hist_buf, parsed_input[x], MAXARGSZ);
}
#endif
strcpy(arg2, parsed_input[x]);
p2 = arg2;
}
@ -944,9 +1004,22 @@ int rigctl_parse(RIG *my_rig, FILE *fin, FILE *fout, char *argv[], int argc)
if (strlen(parsed_input[x]) > MAXARGSZ)
parsed_input[x][MAXARGSZ] = '\0';
#ifdef HAVE_READLINE_HISTORY
if (rp_hist_buf) {
strncat(rp_hist_buf, " ", 1);
strncat(rp_hist_buf, parsed_input[x], MAXARGSZ);
}
#endif
strcpy(arg3, parsed_input[x]);
p3 = arg3;
}
#ifdef HAVE_READLINE_HISTORY
if (rp_hist_buf) {
add_history(rp_hist_buf);
free(rp_hist_buf);
rp_hist_buf = (char *)NULL;
}
#endif
}
#endif /* HAVE_LIBREADLINE */