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/*********************************************************************/
/* file: path.c - stuff for the path feature */
/* TINTIN III */
/* (T)he K(I)cki(N) (T)ickin D(I)kumud Clie(N)t */
/* coded by peter unold 1992 */
/* recoded by Jeremy C. Jack 1994 */
/*********************************************************************/
#include "tintin.h"
#include "protos/action.h"
#include "protos/alias.h"
#include "protos/globals.h"
#include "protos/hash.h"
#include "protos/lists.h"
#include "protos/print.h"
#include "protos/parse.h"
#include "protos/path.h"
#include "protos/string.h"
#include "protos/utils.h"
#include "protos/vars.h"
#define PATHP(i) (&ses->path[(ses->path_begin+(i))%MAX_PATH_LENGTH])
static bool return_flag = true;
void mark_command(const char *arg, struct session *ses)
{
ses->path_length = 0;
if (ses->mesvar[MSG_PATH])
tintin_printf(ses, "#Beginning of path marked.");
}
void map_command(const char *arg, struct session *ses)
{
char cmd[BUFFER_SIZE];
get_arg_in_braces(arg, cmd, 1);
substitute_vars(cmd, cmd, ses);
check_insert_path(cmd, ses);
}
void savepath_command(const char *arg, struct session *ses)
{
char alias[BUFFER_SIZE], result[BUFFER_SIZE], *r=result;
get_arg_in_braces(arg, alias, 1);
if (!*arg)
return tintin_eprintf(ses, "#Syntax: savepath <alias>");
if (!ses->path_length)
{
tintin_eprintf(ses, "#No path to save!");
return;
}
r+=snprintf(r, BUFFER_SIZE, "%calias {%s} {", tintin_char, alias);
for (int i=0; i<ses->path_length; i++)
{
struct pair *ln = PATHP(i);
int dirlen = strlen(ln->left);
if (r-result + dirlen >= BUFFER_SIZE - 10)
{
tintin_eprintf(ses, "#Error - buffer too small to contain alias");
break;
}
else
r += sprintf(r, "%s%s", ln->left, (i==ses->path_length-1)?";":"");
}
*r++='}', *r=0;
parse_input(result, true, ses);
}
void path2var(char *var, struct session *ses)
{
char *r;
int dirlen, len = 0;
if (!ses->path_length)
{
*var=0;
return;
}
len = 0;
r=var;
for (int i=0; i<ses->path_length; i++)
{
struct pair *ln = PATHP(i);
dirlen = strlen(ln->left);
if (dirlen + len < BUFFER_SIZE - 10)
{
r+=sprintf(r, isatom(ln->left)? "%s" : "{%s}" , ln->left);
len += dirlen + 1;
if (i<ses->path_length-1)
*r++=' ';
}
else
{
tintin_eprintf(ses, "#Error - buffer too small to contain alias");
*r++=0;
break;
}
}
}
void path_command(const char *arg, struct session *ses)
{
char mypath[BUFFER_SIZE];
char *r=mypath+sprintf(mypath, "#Path: ");
for (int i=0; i<ses->path_length; i++)
{
struct pair *ln = PATHP(i);
int dirlen = strlen(ln->left);
if (r-mypath + dirlen > (COLS?COLS:BUFFER_SIZE)-10)
{
r[-1]=0;
tintin_printf(ses, "%s", mypath);
r=mypath+sprintf(mypath, "#Path: ");
}
r+=sprintf(r, "%s;", ln->left);
}
r[-1]=0;
tintin_printf(ses, "%s", mypath);
}
void return_command(const char *arg, struct session *ses)
{
int n;
char *err, how[BUFFER_SIZE];
get_arg_in_braces(arg, how, 1);
if (!ses->path_length)
return tintin_eprintf(ses, "#No place to return from!");
if (!*how)
n=1;
else if (!strcmp(how, "all") || !strcmp(how, "ALL"))
n=ses->path_length;
else
{
n=strtol(how, &err, 10);
if (*err || n<0)
return tintin_eprintf(ses, "#return [<num>|all], got {%s}", how);
if (!n) /* silently ignore "#return 0" */
return;
}
return_flag = false; /* temporarily turn off path tracking */
while (n--)
{
char command[BUFFER_SIZE];
if (!ses->path_length)
break;
struct pair *ln = PATHP(--ses->path_length);
strcpy(command, ln->right);
parse_input(command, false, ses);
}
return_flag = true; /* restore path tracking */
}
void unmap_command(const char *arg, struct session *ses)
{
if (!ses->path_length)
return tintin_eprintf(ses, "#No move to forget!");
ses->path_length--;
if (ses->mesvar[MSG_PATH])
tintin_eprintf(ses, "#Ok. Forgot that move.");
}
void check_insert_path(const char *command, struct session *ses)
{
if (!return_flag)
return;
char *ret=get_hash(ses->pathdirs, command);
if (!ret)
return;
if (ses->path_length != MAX_PATH_LENGTH)
ses->path_length++;
else
ses->path_begin++;
struct pair *p = PATHP(ses->path_length-1);
free((char*)p->left);
free((char*)p->right);
p->left =mystrdup(command);
p->right=mystrdup(ret);
}
void pathdir_command(const char *arg, struct session *ses)
{
char left[BUFFER_SIZE], right[BUFFER_SIZE];
arg = get_arg_in_braces(arg, left, 0);
arg = get_arg_in_braces(arg, right, 1);
if (*left && *right)
{
set_hash(ses->pathdirs, left, right);
if (ses->mesvar[MSG_PATH])
tintin_printf(ses, "#Ok. {%s} is marked in #path. {%s} is its #return.",
left, right);
pdnum++;
return;
}
show_hashlist(ses, ses->pathdirs, left,
"#These PATHDIRS have been defined:",
"#That PATHDIR (%s) is not defined.");
}
void unpathdir_command(const char *arg, struct session *ses)
{
char left[BUFFER_SIZE];
arg = get_arg_in_braces(arg, left, 1);
substitute_vars(left, left, ses);
delete_hashlist(ses, ses->pathdirs, left,
ses->mesvar[MSG_PATH]? "#Ok. $%s is no longer recognized as a pathdir." : 0,
ses->mesvar[MSG_PATH]? "#THAT PATHDIR (%s) IS NOT DEFINED." : 0);
}
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