110 lines
2.9 KiB
C++
Executable File
110 lines
2.9 KiB
C++
Executable File
// jsonproc.cpp
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#include "jsonproc.h"
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#include <map>
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#include <string>
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using std::string; using std::to_string;
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#include <inja.hpp>
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using namespace inja;
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using json = nlohmann::json;
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std::map<string, string> customVars;
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void set_custom_var(string key, string value)
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{
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customVars[key] = value;
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}
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string get_custom_var(string key)
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{
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return customVars[key];
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}
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int main(int argc, char *argv[])
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{
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if (argc != 4)
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FATAL_ERROR("USAGE: jsonproc <json-filepath> <template-filepath> <output-filepath>\n");
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string jsonfilepath = argv[1];
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string templateFilepath = argv[2];
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string outputFilepath = argv[3];
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Environment env;
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// Add custom command callbacks.
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env.add_callback("doNotModifyHeader", 0, [jsonfilepath, templateFilepath](Arguments& args) {
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return "//\n// DO NOT MODIFY THIS FILE! It is auto-generated from " + jsonfilepath +" and Inja template " + templateFilepath + "\n//\n";
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});
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env.add_callback("subtract", 2, [](Arguments& args) {
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int minuend = args.at(0)->get<int>();
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int subtrahend = args.at(1)->get<int>();
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return minuend - subtrahend;
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});
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env.add_callback("setVar", 2, [=](Arguments& args) {
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string key = args.at(0)->get<string>();
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string value = args.at(1)->get<string>();
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set_custom_var(key, value);
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return "";
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});
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env.add_callback("setVarInt", 2, [=](Arguments& args) {
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string key = args.at(0)->get<string>();
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string value = to_string(args.at(1)->get<int>());
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set_custom_var(key, value);
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return "";
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});
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env.add_callback("getVar", 1, [=](Arguments& args) {
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string key = args.at(0)->get<string>();
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return get_custom_var(key);
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});
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env.add_callback("concat", 2, [](Arguments& args) {
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string first = args.at(0)->get<string>();
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string second = args.at(1)->get<string>();
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return first + second;
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});
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env.add_callback("removePrefix", 2, [](Arguments& args) {
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string rawValue = args.at(0)->get<string>();
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string prefix = args.at(1)->get<string>();
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string::size_type i = rawValue.find(prefix);
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if (i != 0)
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return rawValue;
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return rawValue.erase(0, prefix.length());
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});
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env.add_callback("removeSuffix", 2, [](Arguments& args) {
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string rawValue = args.at(0)->get<string>();
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string suffix = args.at(1)->get<string>();
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string::size_type i = rawValue.rfind(suffix);
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if (i == string::npos)
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return rawValue;
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return rawValue.substr(0, i);
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});
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// single argument is a json object
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env.add_callback("isEmpty", 1, [](Arguments& args) {
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return args.at(0)->empty();
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});
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try
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{
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env.write_with_json_file(templateFilepath, jsonfilepath, outputFilepath);
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}
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catch (const std::exception& e)
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{
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FATAL_ERROR("JSONPROC_ERROR: %s\n", e.what());
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}
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return 0;
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}
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