本文整理汇总了C++中wcstring_list_t::empty方法的典型用法代码示例。如果您正苦于以下问题：C++ wcstring_list_t::empty方法的具体用法？C++ wcstring_list_t::empty怎么用？C++ wcstring_list_t::empty使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类wcstring_list_t的用法示例。
在下文中一共展示了wcstring_list_t::empty方法的9个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: wcstring
/// Silly function.
static void builtin_complete_add2(const wchar_t *cmd, int cmd_type, const wchar_t *short_opt,
const wcstring_list_t &gnu_opt, const wcstring_list_t &old_opt,
int result_mode, const wchar_t *condition, const wchar_t *comp,
const wchar_t *desc, int flags) {
size_t i;
const wchar_t *s;
for (s = short_opt; *s; s++) {
complete_add(cmd, cmd_type, wcstring(1, *s), option_type_short, result_mode, condition,
comp, desc, flags);
}
for (i = 0; i < gnu_opt.size(); i++) {
complete_add(cmd, cmd_type, gnu_opt.at(i), option_type_double_long, result_mode, condition,
comp, desc, flags);
}
for (i = 0; i < old_opt.size(); i++) {
complete_add(cmd, cmd_type, old_opt.at(i), option_type_single_long, result_mode, condition,
comp, desc, flags);
}
if (old_opt.empty() && gnu_opt.empty() && wcslen(short_opt) == 0) {
complete_add(cmd, cmd_type, wcstring(), option_type_args_only, result_mode, condition, comp,
desc, flags);
}
}示例2: if
/**
Silly function
*/
static void builtin_complete_remove2(const wchar_t *cmd,
int cmd_type,
const wchar_t *short_opt,
const wcstring_list_t &gnu_opt,
const wcstring_list_t &old_opt)
{
const wchar_t *s = (wchar_t *)short_opt;
if (*s)
{
for (; *s; s++)
{
if (old_opt.empty() && gnu_opt.empty())
{
complete_remove(cmd,
cmd_type,
*s,
0,
0);
}
else
{
builtin_complete_remove3(cmd,
cmd_type,
*s,
gnu_opt,
0);
builtin_complete_remove3(cmd,
cmd_type,
*s,
old_opt,
1);
}
}
}
else if (gnu_opt.empty() && old_opt.empty())
{
complete_remove(cmd,
cmd_type,
0,
0,
0);
}
else
{
builtin_complete_remove3(cmd,
cmd_type,
0,
gnu_opt,
0);
builtin_complete_remove3(cmd,
cmd_type,
0,
old_opt,
1);
}
}示例3: function_prepare_environment
void function_prepare_environment(const wcstring &name, const wchar_t *const *argv,
const std::map<wcstring, env_var_t> &inherited_vars) {
// Three components of the environment:
// 1. argv
// 2. named arguments
// 3. inherited variables
env_set_argv(argv);
const wcstring_list_t named_arguments = function_get_named_arguments(name);
if (!named_arguments.empty()) {
const wchar_t *const *arg;
size_t i;
for (i = 0, arg = argv; i < named_arguments.size(); i++) {
env_set(named_arguments.at(i).c_str(), *arg, ENV_LOCAL | ENV_USER);
if (*arg) arg++;
}
}
for (std::map<wcstring, env_var_t>::const_iterator it = inherited_vars.begin(),
end = inherited_vars.end();
it != end; ++it) {
env_set(it->first, it->second.missing() ? NULL : it->second.c_str(), ENV_LOCAL | ENV_USER);
}
}示例4: validate_path_warning_on_colons
// Validate the given path `list`. If there are any entries referring to invalid directories which
// contain a colon, then complain. Return true if any path element was valid, false if not.
static bool validate_path_warning_on_colons(const wchar_t *cmd,
const wchar_t *key, //!OCLINT(npath complexity)
const wcstring_list_t &list, io_streams_t &streams,
const environment_t &vars) {
// Always allow setting an empty value.
if (list.empty()) return true;
bool any_success = false;
// Don't bother validating (or complaining about) values that are already present. When
// determining already-present values, use ENV_DEFAULT instead of the passed-in scope because
// in:
//
// set -l PATH stuff $PATH
//
// where we are temporarily shadowing a variable, we want to compare against the shadowed value,
// not the (missing) local value. Also don't bother to complain about relative paths, which
// don't start with /.
wcstring_list_t existing_values;
const auto existing_variable = vars.get(key, ENV_DEFAULT);
if (!existing_variable.missing_or_empty()) existing_variable->to_list(existing_values);
for (const wcstring &dir : list) {
if (!string_prefixes_string(L"/", dir) || contains(existing_values, dir)) {
any_success = true;
continue;
}
const wchar_t *colon = std::wcschr(dir.c_str(), L':');
bool looks_like_colon_sep = colon && colon[1];
if (!looks_like_colon_sep && any_success) {
// Once we have one valid entry, skip the remaining ones unless we might warn.
continue;
}
struct stat buff;
bool valid = true;
if (wstat(dir, &buff) == -1) {
valid = false;
} else if (!S_ISDIR(buff.st_mode)) {
errno = ENOTDIR;
valid = false;
} else if (waccess(dir, X_OK) == -1) {
valid = false;
}
if (valid) {
any_success = true;
} else if (looks_like_colon_sep) {
streams.err.append_format(BUILTIN_SET_PATH_ERROR, cmd, key, dir.c_str(),
std::strerror(errno));
streams.err.append_format(BUILTIN_SET_PATH_HINT, cmd, key, key,
std::wcschr(dir.c_str(), L':') + 1);
}
}
return any_success;
}示例5: parse_util_set_argv
void parse_util_set_argv(const wchar_t * const *argv, const wcstring_list_t &named_arguments)
{
if (*argv)
{
const wchar_t * const *arg;
wcstring sb;
for (arg=argv; *arg; arg++)
{
if (arg != argv)
{
sb.append(ARRAY_SEP_STR);
}
sb.append(*arg);
}
env_set(L"argv", sb.c_str(), ENV_LOCAL);
}
else
{
env_set(L"argv", 0, ENV_LOCAL);
}
if (! named_arguments.empty())
{
const wchar_t * const *arg;
size_t i;
for (i=0, arg=argv; i < named_arguments.size(); i++)
{
env_set(named_arguments.at(i).c_str(), *arg, ENV_LOCAL | ENV_USER);
if (*arg)
arg++;
}
}
}示例6:
/**
Silly function
*/
static void builtin_complete_add2(const wchar_t *cmd,
int cmd_type,
const wchar_t *short_opt,
const wcstring_list_t &gnu_opt,
const wcstring_list_t &old_opt,
int result_mode,
const wchar_t *condition,
const wchar_t *comp,
const wchar_t *desc,
int flags)
{
size_t i;
const wchar_t *s;
for (s=short_opt; *s; s++)
{
complete_add(cmd,
cmd_type,
*s,
0,
0,
result_mode,
condition,
comp,
desc,
flags);
}
for (i=0; i<gnu_opt.size(); i++)
{
complete_add(cmd,
cmd_type,
0,
gnu_opt.at(i).c_str(),
0,
result_mode,
condition,
comp,
desc,
flags);
}
for (i=0; i<old_opt.size(); i++)
{
complete_add(cmd,
cmd_type,
0,
old_opt.at(i).c_str(),
1,
result_mode,
condition,
comp,
desc,
flags);
}
if (old_opt.empty() && gnu_opt.empty() && wcslen(short_opt) == 0)
{
complete_add(cmd,
cmd_type,
0,
0,
0,
result_mode,
condition,
comp,
desc,
flags);
}
}示例7: my_env_set
/**
Call env_set. If this is a path variable, e.g. PATH, validate the
elements. On error, print a description of the problem to stderr.
*/
static int my_env_set(const wchar_t *key, const wcstring_list_t &val, int scope)
{
size_t i;
int retcode = 0;
const wchar_t *val_str=NULL;
if (is_path_variable(key))
{
/* Fix for https://github.com/fish-shell/fish-shell/issues/199 . Return success if any path setting succeeds. */
bool any_success = false;
/* Don't bother validating (or complaining about) values that are already present */
wcstring_list_t existing_values;
const env_var_t existing_variable = env_get_string(key, scope);
if (! existing_variable.missing_or_empty())
tokenize_variable_array(existing_variable, existing_values);
for (i=0; i< val.size() ; i++)
{
const wcstring &dir = val.at(i);
if (list_contains_string(existing_values, dir))
{
any_success = true;
continue;
}
bool show_perror = false;
int show_hint = 0;
bool error = false;
struct stat buff;
if (wstat(dir, &buff))
{
error = true;
show_perror = true;
}
if (!(S_ISDIR(buff.st_mode)))
{
error = true;
}
if (!error)
{
any_success = true;
}
else
{
append_format(stderr_buffer, _(BUILTIN_SET_PATH_ERROR), L"set", dir.c_str(), key);
const wchar_t *colon = wcschr(dir.c_str(), L':');
if (colon && *(colon+1))
{
show_hint = 1;
}
}
if (show_perror)
{
builtin_wperror(L"set");
}
if (show_hint)
{
append_format(stderr_buffer, _(BUILTIN_SET_PATH_HINT), L"set", key, key, wcschr(dir.c_str(), L':')+1);
}
}
/* Fail at setting the path if we tried to set it to something non-empty, but it wound up empty. */
if (! val.empty() && ! any_success)
{
return 1;
}
}
wcstring sb;
if (! val.empty())
{
for (i=0; i< val.size() ; i++)
{
sb.append(val[i]);
if (i<val.size() - 1)
{
sb.append(ARRAY_SEP_STR);
}
}
val_str = sb.c_str();
}
switch (env_set(key, val_str, scope | ENV_USER))
{
case ENV_PERM:
{
//.........这里部分代码省略.........
示例8: my_env_set
/**
Call env_set. If this is a path variable, e.g. PATH, validate the
elements. On error, print a description of the problem to stderr.
*/
static int my_env_set(const wchar_t *key, const wcstring_list_t &val, int scope, io_streams_t &streams)
{
size_t i;
int retcode = 0;
const wchar_t *val_str=NULL;
if (is_path_variable(key))
{
/* Fix for https://github.com/fish-shell/fish-shell/issues/199 . Return success if any path setting succeeds. */
bool any_success = false;
/* Don't bother validating (or complaining about) values that are already present.
When determining already-present values, use ENV_DEFAULT instead of the passed-in scope because in:
set -l PATH stuff $PATH
where we are temporarily shadowing a variable, we want to compare against the shadowed value, not the
(missing) local value.
Also don't bother to complain about relative paths, which don't start with /.
*/
wcstring_list_t existing_values;
const env_var_t existing_variable = env_get_string(key, ENV_DEFAULT);
if (! existing_variable.missing_or_empty())
tokenize_variable_array(existing_variable, existing_values);
for (i=0; i< val.size() ; i++)
{
const wcstring &dir = val.at(i);
if (!string_prefixes_string(L"/", dir) || list_contains_string(existing_values, dir))
{
any_success = true;
continue;
}
bool show_perror = false;
int show_hint = 0;
bool error = false;
struct stat buff;
if (wstat(dir, &buff))
{
error = true;
show_perror = true;
}
if (!(S_ISDIR(buff.st_mode)))
{
error = true;
}
if (!error)
{
any_success = true;
}
else
{
streams.err.append_format(_(BUILTIN_SET_PATH_ERROR), L"set", dir.c_str(), key);
const wchar_t *colon = wcschr(dir.c_str(), L':');
if (colon && *(colon+1))
{
show_hint = 1;
}
}
if (show_perror)
{
builtin_wperror(L"set", streams);
}
if (show_hint)
{
streams.err.append_format(_(BUILTIN_SET_PATH_HINT), L"set", key, key, wcschr(dir.c_str(), L':')+1);
}
}
/* Fail at setting the path if we tried to set it to something non-empty, but it wound up empty. */
if (! val.empty() && ! any_success)
{
return 1;
}
}
wcstring sb;
if (! val.empty())
{
for (i=0; i< val.size() ; i++)
{
sb.append(val[i]);
if (i<val.size() - 1)
{
sb.append(ARRAY_SEP_STR);
}
}
val_str = sb.c_str();
//.........这里部分代码省略.........
示例9: my_env_set
/**
Call env_set. If this is a path variable, e.g. PATH, validate the
elements. On error, print a description of the problem to stderr.
*/
static int my_env_set( const wchar_t *key, const wcstring_list_t &val, int scope )
{
size_t i;
int retcode = 0;
const wchar_t *val_str=NULL;
if( is_path_variable( key ) )
{
/* Fix for https://github.com/fish-shell/fish-shell/issues/199 . Return success if any path setting succeeds. */
bool any_success = false, any_error = false;
for( i=0; i< val.size() ; i++ )
{
bool show_perror = false;
int show_hint = 0;
bool error = false;
struct stat buff;
const wchar_t *dir = val[i].c_str();
if( wstat( dir, &buff ) )
{
error = true;
show_perror = true;
}
if( !( S_ISDIR(buff.st_mode) ) )
{
error = true;
}
if( !error )
{
any_success = true;
}
else
{
any_error = true;
const wchar_t *colon;
append_format(stderr_buffer, _(BUILTIN_SET_PATH_ERROR), L"set", dir, key);
colon = wcschr( dir, L':' );
if( colon && *(colon+1) )
{
show_hint = 1;
}
}
if( show_perror )
{
builtin_wperror( L"set" );
}
if( show_hint )
{
append_format(stderr_buffer, _(BUILTIN_SET_PATH_HINT), L"set", key, key, wcschr( dir, L':' )+1);
}
}
/* Fail at setting the path if we tried to set it to something non-empty, but it wound up empty. */
if( ! val.empty() && ! any_success )
{
return 1;
}
}
wcstring sb;
if( val.size() )
{
for( i=0; i< val.size() ; i++ )
{
sb.append(val[i]);
if( i<val.size() - 1 )
{
sb.append( ARRAY_SEP_STR );
}
}
val_str = sb.c_str();
}
switch( env_set( key, val_str, scope | ENV_USER ) )
{
case ENV_PERM:
{
append_format(stderr_buffer, _(L"%ls: Tried to change the read-only variable '%ls'\n"), L"set", key);
retcode=1;
break;
}
case ENV_INVALID:
{
append_format(stderr_buffer, _(L"%ls: Unknown error"), L"set" );
retcode=1;
//.........这里部分代码省略.........