/* Validates list of tags. Returns zero if tags are well-formed and non-zero
* otherwise. */
static int
validate_tags(const char tags[])
{
return tags[0] == '\0'
|| starts_with_lit(tags, ",") || strstr(tags, ",,") != NULL
|| ends_with(tags, ",");
}
const char *
find_last_command(const char cmds[])
{
const char *p, *q;
p = cmds;
q = cmds;
while(*cmds != '\0')
{
if(*p == '\\')
{
q += (p[1] == '|') ? 1 : 2;
p += 2;
}
else if(*p == '\0' || (*p == '|' &&
line_pos(cmds, q, ' ', starts_with_lit(cmds, "fil")) == 0))
{
if(*p != '\0')
{
++p;
}
cmds = skip_to_cmd_name(cmds);
if(*cmds == '!' || starts_with_lit(cmds, "com"))
{
break;
}
q = p;
if(*q == '\0')
{
break;
}
cmds = q;
}
else
{
++q;
++p;
}
}
return cmds;
}
/* Applies one filename modifiers per call. */
static const char *
apply_mod(const char *path, const char *parent, const char *mod, int *mod_len,
int for_shell)
{
char path_buf[PATH_MAX];
static char buf[PATH_MAX];
snprintf(path_buf, sizeof(path_buf), "%s", path);
#ifdef _WIN32
to_forward_slash(path_buf);
#endif
*mod_len = 2;
if(starts_with_lit(mod, ":p"))
*mod_len += apply_p_mod(path_buf, parent, buf, sizeof(buf));
else if(starts_with_lit(mod, ":~"))
*mod_len += apply_tilde_mod(path_buf, buf, sizeof(buf));
else if(starts_with_lit(mod, ":."))
*mod_len += apply_dot_mod(path_buf, buf, sizeof(buf));
else if(starts_with_lit(mod, ":h"))
*mod_len += apply_h_mod(path_buf, buf, sizeof(buf));
#ifdef _WIN32
else if(starts_with_lit(mod, ":u"))
*mod_len += apply_u_mod(path_buf, buf, sizeof(buf));
#endif
else if(starts_with_lit(mod, ":t"))
*mod_len += apply_t_mod(path_buf, buf, sizeof(buf));
else if(starts_with_lit(mod, ":r"))
*mod_len += apply_r_mod(path_buf, buf, sizeof(buf));
else if(starts_with_lit(mod, ":e"))
*mod_len += apply_e_mod(path_buf, buf, sizeof(buf));
else if(starts_with_lit(mod, ":s") || starts_with_lit(mod, ":gs"))
*mod_len += apply_s_gs_mod(path_buf, mod, buf, sizeof(buf));
else
return NULL;
#ifdef _WIN32
/* This is needed to run something like explorer.exe, which isn't smart enough
* to understand forward slashes. */
if(for_shell && curr_stats.shell_type != ST_CMD)
{
if(!starts_with_lit(mod, ":s") && !starts_with_lit(mod, ":gs"))
{
to_back_slash(buf);
}
}
#endif
return buf;
}