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Mikah Chapman
2021-12-14 00:28:25 -07:00
commit 68b10d413b
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foobar2000/SDK/titleformat.h Normal file
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#pragma once
namespace titleformat_inputtypes {
extern const GUID meta, unknown;
};
class NOVTABLE titleformat_text_out {
public:
virtual void write(const GUID & p_inputtype,const char * p_data,t_size p_data_length = ~0) = 0;
void write_int(const GUID & p_inputtype,t_int64 val);
void write_int_padded(const GUID & p_inputtype,t_int64 val,t_int64 maxval);
protected:
titleformat_text_out() {}
~titleformat_text_out() {}
};
class NOVTABLE titleformat_text_filter {
public:
virtual void write(const GUID & p_inputtype,pfc::string_receiver & p_out,const char * p_data,t_size p_data_length) = 0;
protected:
titleformat_text_filter() {}
~titleformat_text_filter() {}
};
class NOVTABLE titleformat_hook_function_params
{
public:
virtual t_size get_param_count() = 0;
virtual void get_param(t_size index,const char * & p_string,t_size & p_string_len) = 0;//warning: not a null-terminated string
//helper
t_size get_param_uint(t_size index);
};
class NOVTABLE titleformat_hook
{
public:
virtual bool process_field(titleformat_text_out * p_out,const char * p_name,t_size p_name_length,bool & p_found_flag) = 0;
virtual bool process_function(titleformat_text_out * p_out,const char * p_name,t_size p_name_length,titleformat_hook_function_params * p_params,bool & p_found_flag) = 0;
};
//! Represents precompiled executable title-formatting script. Use titleformat_compiler to instantiate; do not reimplement.
class NOVTABLE titleformat_object : public service_base
{
public:
virtual void run(titleformat_hook * p_source,pfc::string_base & p_out,titleformat_text_filter * p_filter)=0;
void run_hook(const playable_location & p_location,const file_info * p_source,titleformat_hook * p_hook,pfc::string_base & p_out,titleformat_text_filter * p_filter);
void run_simple(const playable_location & p_location,const file_info * p_source,pfc::string_base & p_out);
FB2K_MAKE_SERVICE_INTERFACE(titleformat_object,service_base);
};
//! Standard service for instantiating titleformat_object. Implemented by the core; do not reimplement.
//! To instantiate, use titleformat_compiler::get().
class NOVTABLE titleformat_compiler : public service_base {
FB2K_MAKE_SERVICE_COREAPI(titleformat_compiler);
public:
//! Returns false in case of a compilation error.
virtual bool compile(titleformat_object::ptr & p_out,const char * p_spec) = 0;
//! Helper;
void run(titleformat_hook * p_source,pfc::string_base & p_out,const char * p_spec);
//! Should never fail, falls back to %filename% in case of failure.
void compile_safe(titleformat_object::ptr & p_out,const char * p_spec);
//! Falls back to p_fallback in case of failure.
void compile_safe_ex(titleformat_object::ptr & p_out,const char * p_spec,const char * p_fallback = "<ERROR>");
//! Throws a bug check exception when script can't be compiled. For use with hardcoded scripts only.
void compile_force(titleformat_object::ptr & p_out,const char * p_spec) {if (!compile(p_out,p_spec)) uBugCheck();}
static void remove_color_marks(const char * src,pfc::string_base & out);//helper
static void remove_forbidden_chars(titleformat_text_out * p_out,const GUID & p_inputtype,const char * p_source,t_size p_source_len,const char * p_forbidden_chars);
static void remove_forbidden_chars_string_append(pfc::string_receiver & p_out,const char * p_source,t_size p_source_len,const char * p_forbidden_chars);
static void remove_forbidden_chars_string(pfc::string_base & p_out,const char * p_source,t_size p_source_len,const char * p_forbidden_chars);
};
class titleformat_object_wrapper {
public:
titleformat_object_wrapper(const char * p_script) {
titleformat_compiler::get()->compile_force(m_script,p_script);
}
operator const service_ptr_t<titleformat_object> &() const {return m_script;}
private:
service_ptr_t<titleformat_object> m_script;
};
//helpers
class titleformat_text_out_impl_filter_chars : public titleformat_text_out
{
public:
inline titleformat_text_out_impl_filter_chars(titleformat_text_out * p_chain,const char * p_restricted_chars)
: m_chain(p_chain), m_restricted_chars(p_restricted_chars) {}
void write(const GUID & p_inputtype,const char * p_data,t_size p_data_length);
private:
titleformat_text_out * m_chain;
const char * m_restricted_chars;
};
class titleformat_text_out_impl_string : public titleformat_text_out {
public:
titleformat_text_out_impl_string(pfc::string_receiver & p_string) : m_string(p_string) {}
void write(const GUID & p_inputtype,const char * p_data,t_size p_data_length) {m_string.add_string(p_data,p_data_length);}
private:
pfc::string_receiver & m_string;
};
class titleformat_common_methods : public service_base {
public:
virtual bool process_field(const file_info & p_info,const playable_location & p_location,titleformat_text_out * p_out,const char * p_name,t_size p_name_length,bool & p_found_flag) = 0;
virtual bool process_function(const file_info & p_info,const playable_location & p_location,titleformat_text_out * p_out,const char * p_name,t_size p_name_length,titleformat_hook_function_params * p_params,bool & p_found_flag) = 0;
virtual bool remap_meta(const file_info & p_info,t_size & p_index, const char * p_name, t_size p_name_length) = 0;
FB2K_MAKE_SERVICE_COREAPI(titleformat_common_methods);
};
class titleformat_hook_impl_file_info : public titleformat_hook
{
public:
titleformat_hook_impl_file_info(const playable_location & p_location,const file_info * p_info) : m_location(p_location), m_info(p_info) {}//caller must ensure that referenced file_info object is alive as long as the titleformat_hook_impl_file_info instance
bool process_field(titleformat_text_out * p_out,const char * p_name,t_size p_name_length,bool & p_found_flag);
bool process_function(titleformat_text_out * p_out,const char * p_name,t_size p_name_length,titleformat_hook_function_params * p_params,bool & p_found_flag);
protected:
bool remap_meta(t_size & p_index, const char * p_name, t_size p_name_length) {return m_api->remap_meta(*m_info,p_index,p_name,p_name_length);}
const file_info * m_info;
private:
const playable_location & m_location;
const titleformat_common_methods::ptr m_api = titleformat_common_methods::get();
};
class titleformat_hook_impl_splitter : public titleformat_hook {
public:
inline titleformat_hook_impl_splitter(titleformat_hook * p_hook1,titleformat_hook * p_hook2) : m_hook1(p_hook1), m_hook2(p_hook2) {}
bool process_field(titleformat_text_out * p_out,const char * p_name,t_size p_name_length,bool & p_found_flag);
bool process_function(titleformat_text_out * p_out,const char * p_name,t_size p_name_length,titleformat_hook_function_params * p_params,bool & p_found_flag);
private:
titleformat_hook * m_hook1, * m_hook2;
};
class titleformat_text_filter_impl_reserved_chars : public titleformat_text_filter {
public:
titleformat_text_filter_impl_reserved_chars(const char * p_reserved_chars) : m_reserved_chars(p_reserved_chars) {}
virtual void write(const GUID & p_inputtype,pfc::string_receiver & p_out,const char * p_data,t_size p_data_length);
private:
const char * m_reserved_chars;
};
class titleformat_text_filter_impl_filename_chars : public titleformat_text_filter {
public:
void write(const GUID & p_inputType,pfc::string_receiver & p_out,const char * p_data,t_size p_dataLength);
};
class titleformat_text_filter_nontext_chars : public titleformat_text_filter {
public:
inline static bool isReserved(char c) { return c >= 0 && c < 0x20; }
void write(const GUID & p_inputtype,pfc::string_receiver & p_out,const char * p_data,t_size p_data_length);
};
class titleformat_hook_impl_list : public titleformat_hook {
public:
titleformat_hook_impl_list(t_size p_index /* zero-based! */,t_size p_total) : m_index(p_index), m_total(p_total) {}
bool process_field(titleformat_text_out * p_out,const char * p_name,t_size p_name_length,bool & p_found_flag) {
if (
pfc::stricmp_ascii_ex(p_name,p_name_length,"list_index",~0) == 0
) {
p_out->write_int_padded(titleformat_inputtypes::unknown,m_index+1, m_total);
p_found_flag = true; return true;
} else if (
pfc::stricmp_ascii_ex(p_name,p_name_length,"list_total",~0) == 0
) {
p_out->write_int(titleformat_inputtypes::unknown,m_total);
p_found_flag = true; return true;
} else {
p_found_flag = false; return false;
}
}
bool process_function(titleformat_text_out * p_out,const char * p_name,t_size p_name_length,titleformat_hook_function_params * p_params,bool & p_found_flag) {return false;}
private:
t_size m_index, m_total;
};
class string_formatter_tf : public pfc::string_base {
public:
string_formatter_tf(titleformat_text_out * out, const GUID & inputType = titleformat_inputtypes::meta) : m_out(out), m_inputType(inputType) {}
const char * get_ptr() const {
uBugCheck();
}
void add_string(const char * p_string,t_size p_length) {
m_out->write(m_inputType,p_string,p_length);
}
void set_string(const char * p_string,t_size p_length) {
uBugCheck();
}
void truncate(t_size len) {
uBugCheck();
}
t_size get_length() const {
uBugCheck();
}
char * lock_buffer(t_size p_requested_length) {
uBugCheck();
}
void unlock_buffer() {
uBugCheck();
}
private:
titleformat_text_out * const m_out;
const GUID m_inputType;
};
class titleformat_object_cache {
public:
titleformat_object_cache(const char * pattern) : m_pattern(pattern) {}
operator titleformat_object::ptr() {
PFC_ASSERT(core_api::assert_main_thread());
if (m_obj.is_empty()) {
titleformat_compiler::get()->compile_force(m_obj, m_pattern);
}
return m_obj;
}
private:
const char * const m_pattern;
titleformat_object::ptr m_obj;
};