stamen

Static Menu Generator

git clone git://git.dimitrijedobrota.com/stamen.git

commit	f4fed18ad7916907f96caaa641143d3ed00f02f6
parent	69b2fecb3c6afe1358abb309dd8a3a95cdf417e7
author	Dimitrije Dobrota < mail@dimitrijedobrota.com >
date	Thu, 30 Nov 2023 02:16:26 +0000

Provide C version of the library

* Remove old .ccls
* Add C demo code
* Provide C binding for the library

Diffstat:

D	.ccls	\|	----
M	.gitignore	\|	++
M	CMakeLists.txt	\|	++++++ --
M	demo/CMakeLists.txt	\|	+++++++++++++++++++++++++++++++ --
A	demo/main.c	\|	+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
M	demo/main.cpp	\|	+ -
M	include/stamen.h	\|	+++++ --
A	include/stamenc.h	\|	+++++++++++++++++++++++++++
M	src/CMakeLists.txt	\|	+++++++++++++++++ -------
M	src/generate.cpp	\|	++++++++++++++++++++++ ------------------
A	src/stamenc.cpp	\|	+++++++++++++++++++++++

11 files changed, 199 insertions(+), 36 deletions(-)

diff --git a/ .ccls b/ .ccls

@@ -1,4 +0,0 @@

clang++

-style=file

-std=c++17

-Iinclude

diff --git a/ .gitignore b/ .gitignore

@@ -1,4 +1,6 @@

build

.cache

demo/demo_menu.c

demo/demo_menu.cpp

demo/demo_menu.h

demo/demo_menu.hpp

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

@@ -3,14 +3,18 @@ set(CMAKE_EXPORT_COMPILE_COMMANDS ON)

project(

Stamen

VERSION 0.0.11

VERSION 0.0.12

DESCRIPTION "Static menu generator"

LANGUAGES CXX

LANGUAGES C CXX

)

set(CMAKE_CXX_STANDARD 20)

set(CMAKE_CXX_STANDARD_REQUIRED ON)

set(CMAKE_CXX_EXTENSIONS OFF)

set(CMAKE_C_STANDARD 17)

set(CMAKE_C_STANDARD_REQUIRED ON)

set(CMAKE_C_EXTENSIONS OFF)

add_subdirectory(src)

add_subdirectory(demo)

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

@@ -8,14 +8,14 @@ target_link_libraries(demo

)

add_custom_command(

OUTPUT demo_menu.h demo_menu.cpp

OUTPUT demo_menu.hpp demo_menu.cpp

COMMAND ${CMAKE_BINARY_DIR}/bin/stamen-generate ${CMAKE_CURRENT_SOURCE_DIR}/demo_menu.conf

DEPENDS demo_menu.conf stamen-generate

COMMENT "Generating menu files"

)

add_custom_target(GenerateMenu

DEPENDS demo_menu.h demo_menu.cpp

DEPENDS demo_menu.hpp demo_menu.cpp

COMMENT "Check if re-generation of menu files is required"

)

@@ -28,3 +28,32 @@ set_target_properties(demo PROPERTIES

)

configure_file(demo_menu.conf ${CMAKE_BINARY_DIR}/bin/demo_menu.conf COPYONLY)

add_executable(cdemo

main.c

${CMAKE_CURRENT_SOURCE_DIR}/demo_menu.c

)

target_link_libraries(cdemo

stamenc

)

add_custom_command(

OUTPUT demo_menu.h demo_menu.c

COMMAND ${CMAKE_BINARY_DIR}/bin/stamen-generate ${CMAKE_CURRENT_SOURCE_DIR}/demo_menu.conf c

DEPENDS demo_menu.conf stamen-generate

COMMENT "Generating menu files"

)

add_custom_target(GenerateMenuC

DEPENDS demo_menu.h demo_menu.c

COMMENT "Check if re-generation of menu files is required"

)

add_dependencies(cdemo GenerateMenuC)

set_target_properties(cdemo PROPERTIES

VERSION ${PROJECT_VERSION}

SOVERSION ${PROJECT_VERSION_MAJOR}

RUNTIME_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}/bin"

)

diff --git a/ demo/main.c b/ demo/main.c

@@ -0,0 +1,65 @@

#include "demo_menu.h"

#include "stamenc.h"

#include <stdio.h>

#include <stdlib.h>

#include <string.h>

const display_f display = stamen_builtin_display;

int operation1(void) {

printf("operation 1\n");

printf("Some operation is done\n");

return 1;

}

int operation2(void) {

printf("operation 2\n");

printf("Some other operation is done\n");

return 1;

}

int operation3(void) {

printf("operation 3\n");

printf("Yet another operation is done\n");

return 1;

}

int finish(void) {

printf("finishing...\n");

exit(0);

}

int menu_static_run(void) { return menu_main(); }

int menu_dynamic_run(void) { return stamen_start("menu_main"); }

int menu_dynamic_print(void) {

stamen_print("menu_main");

return 1;

}

int main(int argc, const char *argv[]) {

const char *filename = "./demo_menu.conf";

char buffer[FILENAME_MAX] = {0};

const char *sep = strrchr(argv[0], '/');

if (sep) {

const size_t size = sep - argv[0] + 1;

memcpy(buffer, argv[0], size);

memcpy(buffer + size, filename, strlen(filename));

}

stamen_read(sep ? buffer : filename);

stamen_insert("finish", finish);

stamen_insert("operation1", operation1);

stamen_insert("operation2", operation2);

stamen_insert("operation3", operation3);

static const item_t items[] = {

{ menu_static_run, "Run statically generated menu"},

{ menu_dynamic_run, "Run dynamic menu"},

{menu_dynamic_print, "Print dynamic menu"},

{ finish, "Quit"},

};

display("Menu demo program", items, sizeof(items) / sizeof(item_t));

return 0;

}

diff --git a/ demo/main.cpp b/ demo/main.cpp

@@ -1,6 +1,6 @@

#include <iostream>

#include "demo_menu.h"

#include "demo_menu.hpp"

using stamen::Menu;

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

@@ -1,6 +1,8 @@

#ifndef STAMEN_H

#define STAMEN_H

#include "stamenc.h"

#include <exception>

#include <format>

#include <fstream>

@@ -31,6 +33,7 @@ public:

: Menu(code, callback) {}

struct item_t {

item_t() {}

item_t(const callback_f func, const std::string &prompt)

: callback(func), prompt(prompt) {}

@@ -44,8 +47,8 @@ public:

int operator()(void) const { return callback ? callback() : start(code); }

private:

const std::string prompt, code;

const callback_f callback = nullptr;

std::string prompt, code;

callback_f callback = nullptr;

};

typedef int (*display_f)(const std::string &, const item_t[], std::size_t);

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

@@ -0,0 +1,27 @@

#ifndef CSTAMEN_H

#define CSTAMEN_H

#ifdef __cplusplus

#define EXTERNC extern "C"

#else

#define EXTERNC extern

#endif

typedef int (*callback_f)(void);

typedef struct item_t item_t;

struct item_t {

callback_f callback;

const char *prompt;

};

typedef int (*display_f)(const char *, const item_t[], int);

extern const display_f display;

EXTERNC void stamen_read(const char *file);

EXTERNC void stamen_print(const char *entry);

EXTERNC int stamen_start(const char *entry);

EXTERNC void stamen_insert(const char *code, callback_f callback);

EXTERNC int stamen_builtin_display(const char *title, const item_t items[], int size);

#endif

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

@@ -1,6 +1,22 @@

add_library(stamen-include INTERFACE)

target_include_directories(stamen-include INTERFACE ../include)

add_library(stamen stamen.cpp)

target_link_libraries(stamen PUBLIC stamen-include)

set_target_properties(stamen PROPERTIES

VERSION ${PROJECT_VERSION}

SOVERSION ${PROJECT_VERSION_MAJOR}

PUBLIC_HEADER ../include/stamen.h

)

add_library(stamenc stamenc.cpp stamen.cpp)

target_link_libraries(stamenc PUBLIC stamen-include)

set_target_properties(stamenc PROPERTIES

VERSION ${PROJECT_VERSION}

SOVERSION ${PROJECT_VERSION_MAJOR}

PUBLIC_HEADER ../include/stamenc.h

)

add_executable(stamen-generate generate.cpp)

target_link_libraries(stamen-generate PRIVATE stamen-include)

target_include_directories(stamen-generate PUBLIC ../include)

@@ -11,16 +27,10 @@ set_target_properties(stamen-generate PROPERTIES

RUNTIME_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}/bin"

)

add_library(stamen stamen.cpp)

target_link_libraries(stamen PUBLIC stamen-include)

set_target_properties(stamen PROPERTIES

VERSION ${PROJECT_VERSION}

SOVERSION ${PROJECT_VERSION_MAJOR}

PUBLIC_HEADER ../include/stamen.h

)

install(TARGETS stamen-generate DESTINATION bin)

install(TARGETS stamen

LIBRARY DESTINATION lib

PUBLIC_HEADER DESTINATION include

)

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

@@ -13,63 +13,67 @@ public:

}

};

static void generateInclude(std::ostream &os) {

static void generateInclude(std::ostream &os, bool cpp) {

os << "#ifndef STAMEN_MENU_H\n";

os << "#define STAMEN_MENU_H\n\n";

os << "#include <stamen.h>\n\n";

os << "namespace stamen {\n\n";

os << std::format("#include <stamen{}.h>\n\n", !cpp ? "c" : "");

if (cpp) os << "namespace stamen {\n\n";

for (const auto &[code, _] : Menu::getLookup()) {

const Menu *menu = Menu::getMenu(code);

if (!menu) throw EGenerate();

if (menu->callback) continue;

os << std::format("int {}(void);\n", menu->code);

}

os << "\n}\n";

if (cpp) os << "\n}\n";

os << "#endif\n";

}

static void generateSource(std::ostream &os) {

os << "#include <stamen.h>\n";

os << "#include \"shared.h\"\n";

os << "\nnamespace stamen {\n";

static void generateSource(std::ostream &os, bool cpp) {

os << std::format("#include <stamen{}.h>\n", !cpp ? "c" : "");

os << "#include \"shared.h\"\n\n";

if (cpp) os << "namespace stamen {\n";

for (const auto &[code, _] : Menu::getLookup()) {

const Menu *menu = Menu::getMenu(code);

if (!menu) throw EGenerate();

if (menu->callback) continue;

os << std::format("int {}(void) {{\n", menu->code);

os << std::format("\tstatic const Menu::item_t items[] = {{\n");

os << std::format("\tstatic const {}item_t items[] = {{\n",

cpp ? "Menu::" : "");

for (const auto &item : menu->items) {

os << std::format("\t\t{{{}, \"{}\"}},\n", item.getCode(),

os << std::format("\t\t{{ {}, \"{}\" }},\n", item.getCode(),

item.getPrompt());

}

os << std::format("\t}};\n");

os << std::format("\treturn Menu::display(\"{}\", items, "

"sizeof(items) / sizeof(Menu::item_t));\n",

menu->title);

os << std::format("\treturn {0}display(\"{1}\", items, "

"sizeof(items) / sizeof({0}item_t));\n",

cpp ? "Menu::" : "", menu->title);

os << std::format("}}\n\n");

}

os << "\n}\n";

if (cpp) os << "\n}\n";

}

};

} // namespace stamen

int main(const int argc, const char *argv[]) {

if (argc != 2) {

if (argc != 2 && argc != 3) {

std::cout << "please enter exaclty one config file" << std::endl;

return 1;

}

const bool cpp = argc == 2 || std::string(argv[2]) == "cpp";

std::string path = argv[1];

Menu::read(path);

std::string::size_type pos = path.rfind('.');

std::string base = pos != std::string::npos ? path.substr(0, pos) : path;

std::ofstream cpp(base + ".cpp"), h(base + ".h");

std::string ext = cpp ? "pp" : "";

Generator::generateSource(cpp);

Generator::generateInclude(h);

std::ofstream source(base + ".c" + ext), include(base + ".h" + ext);

Generator::generateSource(source, cpp);

Generator::generateInclude(include, cpp);

return 0;

}

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

@@ -0,0 +1,23 @@

#include "../include/stamen.h"

using namespace stamen;

const Menu::display_f Menu::display = nullptr;

void stamen_read(const char *file) { stamen::Menu::read(file); }

void stamen_print(const char *entry) { stamen::Menu::print(entry); }

int stamen_start(const char *entry) { return stamen::Menu::start(entry); }

void stamen_insert(const char *code, callback_f callback) {

Menu::insert(code, callback);

}

int stamen_builtin_display(const char *title, const item_t items[], int size) {

Menu::item_t *litems = new Menu::item_t[size];

if (!litems) return -1;

for (int i = 0; i < size; i++) {

litems[i] = Menu::item_t(items[i].callback, items[i].prompt);

}

const int ret = builtinDisplay(title, litems, size);

delete[] litems;

return ret;

}