stamen

Static Menu Generator
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commit 327abb09023582d7a9310440fd011cf012ae4195
parent 12c5ce88ce059481256dc028f9c672c1861655ca
author Dimitrije Dobrota < mail@dimitrijedobrota.com >
date Thu, 13 Jun 2024 23:15:43 +0200

Option to include system or user stamen header

Diffstat:
M demo/CMakeLists.txt | ++ --
M include/menu.h | +++++ ------
M src/generate.cpp | ++++++++++++++++++++++++++++++++++++++++++ ----------------------------------------

3 files changed, 58 insertions(+), 56 deletions(-)

diff --git a/ demo/CMakeLists.txt b/ demo/CMakeLists.txt

@@ -4,7 +4,7 @@ configure_file(demo_menu.conf ${GENERATE_OUT}/demo_menu.conf COPYONLY)


add_custom_command(
OUTPUT ${GENERATE_OUT}/demo_menu.hpp ${GENERATE_OUT}/demo_menu.cpp
COMMAND ${GENERATE_OUT}/stamen-generate --cpp ${GENERATE_OUT}/demo_menu.conf
COMMAND ${GENERATE_OUT}/stamen-generate --user --cpp ${GENERATE_OUT}/demo_menu.conf
DEPENDS demo_menu.conf stamen-generate
COMMENT "Generating menu files"
)

@@ -23,7 +23,7 @@ set_target_properties(demo PROPERTIES


add_custom_command(
OUTPUT ${GENERATE_OUT}/demo_menu.h ${GENERATE_OUT}/demo_menu.c
COMMAND ${GENERATE_OUT}/stamen-generate --c ${GENERATE_OUT}/demo_menu.conf
COMMAND ${GENERATE_OUT}/stamen-generate --user --c ${GENERATE_OUT}/demo_menu.conf
DEPENDS demo_menu.conf stamen-generate
COMMENT "Generating cmenu files"
)

diff --git a/ include/menu.h b/ include/menu.h

@@ -12,12 +12,6 @@

namespace stamen {

class Menu {
friend class Generator;

static std::unordered_map<std::string, Menu> menu_lookup;
static std::unordered_map<std::string, callback_f> free_lookup;
static std::string display_stub_default;

struct private_ctor_t {};

public:

@@ -59,6 +53,8 @@ class Menu {

return entries.items[idx].callback;
}

static std::unordered_map<std::string, Menu> menu_lookup;

private:
Menu(std::string code, std::string prompt)
: code(std::move(code)), title(std::move(prompt)) {}

@@ -93,6 +89,9 @@ class Menu {


const std::string code, title;
Entries entries;

static std::unordered_map<std::string, callback_f> free_lookup;
static std::string display_stub_default;
};

} // namespace stamen

diff --git a/ src/generate.cpp b/ src/generate.cpp

@@ -8,63 +8,65 @@

#include <iostream>
#include <string>

namespace stamen {

const stamen_display_f stamen_display = stamen::builtin_display;

class Generator {
public:
static void generateInclude(std::ostream &os, bool cpp) {
os << "#ifndef STAMEN_MENU_H\n";
os << "#define STAMEN_MENU_H\n\n";
struct arguments_t {
std::string config;
bool cpp = false;
bool user = false;
} opt;

if (cpp) os << "#include \"stamen.hpp\"\n\n";
void generateIncludeHeaders(std::ostream &os) {
if (opt.user) {
if (opt.cpp) os << "#include \"stamen.hpp\"\n\n";
else os << "#include \"stamen.h\"\n\n";
} else {
if (opt.cpp) os << "#include <stamen/stamen.hpp>\n\n";
else os << "#include <stamen/stamen.h>\n\n";
}
}

for (const auto &[code, menu] : Menu::menu_lookup) {
os << std::format("int {}(int);\n", menu.getCode());
}
void generateInclude(std::ostream &os) {
os << "#ifndef STAMEN_MENU_H\n";
os << "#define STAMEN_MENU_H\n\n";

os << "\n#endif\n";
}
generateIncludeHeaders(os);

static void generateSource(std::ostream &os, bool cpp) {
if (cpp) os << "#include \"stamen.hpp\"\n\n";
else os << "#include \"stamen.h\"\n\n";
for (const auto &[code, menu] : stamen::Menu::menu_lookup) {
os << std::format("int {}(int);\n", menu.getCode());
}

os << "#include \"shared.h\"\n\n";
for (const auto &[code, menu] : Menu::menu_lookup) {
os << std::format("int {}(int) {{\n", menu.getCode());
os << "\n#endif\n";
}

if (cpp) os << "\tstatic const stamen::item_t items[] = ";
else os << "\tstatic const stamen_item_t items[] = ";
void generateSource(std::ostream &os) {
os << "#include \"shared.h\"\n";
generateIncludeHeaders(os);

os << "{\n";
for (int i = 0; i < menu.getSize(); i++) {
os << "\t\t{ " << menu.getCode(i);
os << ", \"" << menu.getPrompt(i) << "\" },\n";
}
os << "\t};\n";
for (const auto &[code, menu] : stamen::Menu::menu_lookup) {
os << std::format("int {}(int) {{\n", menu.getCode());

if (cpp) os << "\treturn stamen::stamen_display";
else os << "\treturn stamen_display";
if (opt.cpp) os << "\tstatic const stamen::item_t items[] = ";
else os << "\tstatic const stamen_item_t items[] = ";

os << std::format("(\"{}\"", menu.getTitle());
os << ", items, sizeof(items) / sizeof(items[0]));\n";
os << "}\n\n";
os << "{\n";
for (int i = 0; i < menu.getSize(); i++) {
os << "\t\t{ " << menu.getCode(i);
os << ", \"" << menu.getPrompt(i) << "\" },\n";
}
}
};
} // namespace stamen
os << "\t};\n";

struct arguments_t {
std::string config;
bool cpp = false;
};
if (opt.cpp) os << "\treturn stamen::stamen_display";
else os << "\treturn stamen_display";

os << std::format("(\"{}\"", menu.getTitle());
os << ", items, sizeof(items) / sizeof(items[0]));\n";
os << "}\n\n";
}
}

int parse_opt(int key, const char *arg, args::Parser *parser) {
auto arguments = (arguments_t *)parser->input();
switch (key) {
case 'u': arguments->user = true; break;
case 666: arguments->cpp = false; break;
case 777: arguments->cpp = true; break;
case args::ARG:

@@ -84,6 +86,8 @@ static const args::option_t options[]{

{0, 0, 0, 0, "Output mode", 1},
{"c", 666, 0, 0, "Generate files for C"},
{"cpp", 777, 0, 0, "Generate files for C++"},
{0, 0, 0, 0, "Output settings", 2},
{"user", 'u', 0, 0, "Include user stamen headers"},
{0, 0, 0, 0, "Informational Options", -1},
{0},
};

@@ -96,23 +100,22 @@ static const args::argp_t argp{

};

int main(int argc, char *argv[]) {
arguments_t arguments;
if (args::parse(&argp, argc, argv, 0, &arguments)) {
if (args::parse(&argp, argc, argv, 0, &opt)) {
std::cerr << "There was an error while parsing arguments";
return 0;
}

const auto &config = arguments.config;
const auto &config = opt.config;
stamen::Menu::read(config);

std::string::size_type pos = arguments.config.rfind('.');
std::string::size_type pos = opt.config.rfind('.');
std::string base =
pos != std::string::npos ? config.substr(0, pos) : config;
std::string ext = arguments.cpp ? "pp" : "";
std::string ext = opt.cpp ? "pp" : "";

std::ofstream source(base + ".c" + ext), include(base + ".h" + ext);
stamen::Generator::generateSource(source, arguments.cpp);
stamen::Generator::generateInclude(include, arguments.cpp);
generateInclude(include);
generateSource(source);

return 0;
}