Move cli options to own files
This commit is contained in:
Clortox
parent
fa44744702
commit
b0783ea304
147
src/main.cpp
147
src/main.cpp
@ -5,152 +5,17 @@
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//
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#include <iostream>
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#include <string>
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#include <getopt.h>
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#include "config.hpp"
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#include "options.hpp"
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#include "rss.hpp"
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#if _TESTS_ == 1
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#include "tests.hpp"
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#endif
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struct option_flags {
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unsigned int title : 1;
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unsigned int link : 1;
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unsigned int description : 1;
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unsigned int language : 1;
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unsigned int webmaster : 1;
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unsigned int copyright : 1;
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unsigned int pubdate : 1;
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unsigned int managingeditor : 1;
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unsigned int generator : 1;
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unsigned int docs : 1;
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unsigned int ttl : 1;
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unsigned int builddate : 1;
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std::string uri;
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};
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//cli options
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static struct option long_options[] =
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{
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{"uri", required_argument, 0, 'u'},
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{"title", no_argument, 0, 't'},
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{"link", no_argument, 0, 'l'},
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{"description", no_argument, 0, 'd'},
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{"language", no_argument, 0, 'e'},
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{"webmaster", no_argument, 0, 'm'},
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{"copyright", no_argument, 0, 'c'},
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{"pubdate", no_argument, 0, 'p'},
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{"managingeditor", no_argument, 0, 'q'},
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{"generator", no_argument, 0, 'g'},
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{"docs", no_argument, 0, 'o'},
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{"ttl", no_argument, 0, 'w'},
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{"builddate", no_argument, 0, 'b'},
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{"help", no_argument, 0, 'h'},
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{0, 0, 0, 0},
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};
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constexpr char* optarg_string = "u:tldemcpqgowbh";
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void help(char* progName){
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std::cout << "Usage: " << progName << "[-u FEED_URI]\n";
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std::cout << "Options:\n";
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std::cout << "Required Options:\n";
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std::cout << " [-u, --uri] URI of the rss stream\n\n";
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std::cout << "Channel information:\n";
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std::cout << " [-t, --title] Get title of channel\n";
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std::cout << " [-l, --link] Get link to channel\n";
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std::cout << " [-d, --description] Get Description of channel\n";
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std::cout << " [-e, --language] Get language code of channel\n";
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std::cout << " [-m, --webmaster] Get webMaster's email\n";
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std::cout << " [-c, --copyright] Get copyright\n";
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std::cout << " [-p, --pubdate] Get publishing date\n";
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std::cout << " [-q, --managingeditor] Get Managing Editor\n";
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std::cout << " [-g, --generator] Get generator of this feed\n";
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std::cout << " [-o, --docs] Get link to RSS documentation\n";
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std::cout << " [-w, --ttl] Get ttl, time that channel can be\n";
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std::cout << " cached before being updated\n";
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std::cout << " [-b, --builddate] Get last time the channel's\n";
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std::cout << " content changed\n\n";
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std::cout << "General options:\n";
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std::cout << " [-h, --help] Show this message\n";
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exit(1);
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}
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option_flags* parse_options(int argc, char** argv) {
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int option_index = 0;
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int c;
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option_flags* ret = new option_flags;
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while(true){
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c = getopt_long(argc, argv, optarg_string,
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long_options, &option_index);
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if(c == -1)
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break;
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switch(c){
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case 'u':
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ret->uri = std::string(optarg);
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break;
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case 't':
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ret->title ^= 1;
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break;
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case 'l':
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ret->link ^= 1;
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break;
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case 'd':
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ret->description ^= 1;
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break;
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case 'e':
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ret->language ^= 1;
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break;
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case 'm':
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ret->webmaster ^= 1;
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break;
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case 'c':
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ret->copyright ^= 1;
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break;
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case 'p':
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ret->pubdate ^= 1;
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break;
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case 'q':
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ret->managingeditor ^= 1;
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break;
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case 'g':
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ret->generator ^= 1;
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break;
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case 'o':
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ret->docs ^= 1;
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break;
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case 'w':
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ret->ttl ^= 1;
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break;
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case 'b':
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ret->builddate ^= 1;
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break;
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case '?':
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std::cerr << "Misunderstood flag!" << std::endl;
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case 'h':
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help(argv[0]);
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break;
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default:
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abort();
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}
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}
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if(ret->uri == ""){
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std::cerr << "Missing required option! -u/--uri" << std::endl;
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exit(-1);
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}
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return ret;
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}
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int main(int argc, char** argv) {
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#if _TESTS_ == 1
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rss_utils::testRSS();
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@ -161,6 +26,12 @@ int main(int argc, char** argv) {
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option_flags* opts = parse_options(argc, argv);
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//setup the rss object
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rss_utils::rss feed(opts->uri);
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if(!feed.isOk())
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exit(-1);
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//display requested attributes
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103
src/options.cpp
Normal file
103
src/options.cpp
Normal file
@ -0,0 +1,103 @@
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///////////////////////////////////////////////////////////////////////////////
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// Tyler Perkins
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// 7-23-21
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// options implementation
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//
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#include "options.hpp"
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void help(char* progName){
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std::cout << "Usage: " << progName << " [-u FEED_URI]\n";
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std::cout << "Options:\n";
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std::cout << "Required Options:\n";
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std::cout << " [-u, --uri] URI of the rss stream\n\n";
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std::cout << "Channel information:\n";
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std::cout << " [-t, --title] Get title of channel\n";
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std::cout << " [-l, --link] Get link to channel\n";
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std::cout << " [-d, --description] Get Description of channel\n";
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std::cout << " [-e, --language] Get language code of channel\n";
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std::cout << " [-m, --webmaster] Get webMaster's email\n";
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std::cout << " [-c, --copyright] Get copyright\n";
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std::cout << " [-p, --pubdate] Get publishing date\n";
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std::cout << " [-q, --managingeditor] Get Managing Editor\n";
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std::cout << " [-g, --generator] Get generator of this feed\n";
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std::cout << " [-o, --docs] Get link to RSS documentation\n";
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std::cout << " [-w, --ttl] Get ttl, time that channel can be\n";
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std::cout << " cached before being updated\n";
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std::cout << " [-b, --builddate] Get last time the channel's\n";
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std::cout << " content changed\n\n";
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std::cout << "General options:\n";
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std::cout << " [-h, --help] Show this message\n";
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exit(1);
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}
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option_flags* parse_options(int argc, char** argv) {
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int option_index = 0;
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int c;
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option_flags* ret = new option_flags;
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while(true){
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c = getopt_long(argc, argv, optarg_string,
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long_options, &option_index);
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if(c == -1)
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break;
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switch(c){
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case 'u':
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ret->uri = std::string(optarg);
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break;
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case 't':
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ret->title ^= 1;
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break;
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case 'l':
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ret->link ^= 1;
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break;
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case 'd':
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ret->description ^= 1;
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break;
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case 'e':
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ret->language ^= 1;
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break;
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case 'm':
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ret->webmaster ^= 1;
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break;
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case 'c':
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ret->copyright ^= 1;
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break;
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case 'p':
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ret->pubdate ^= 1;
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break;
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case 'q':
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ret->managingeditor ^= 1;
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break;
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case 'g':
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ret->generator ^= 1;
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break;
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case 'o':
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ret->docs ^= 1;
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break;
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case 'w':
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ret->ttl ^= 1;
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break;
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case 'b':
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ret->builddate ^= 1;
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break;
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case '?':
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case 'h':
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help(argv[0]);
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break;
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default:
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abort();
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}
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}
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if(ret->uri == ""){
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std::cerr << "Missing required option! -u/--uri" << std::endl;
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exit(-1);
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}
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return ret;
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}
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51
src/options.hpp
Normal file
51
src/options.hpp
Normal file
@ -0,0 +1,51 @@
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///////////////////////////////////////////////////////////////////////////////
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// Tyler Perkins
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// 7-23-21
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// options parsing
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//
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#include <string>
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#include <iostream>
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#include <getopt.h>
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//cli options
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constexpr char* optarg_string = "u:tldemcpqgowbh";
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static struct option long_options[] =
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{
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{"uri", required_argument, 0, 'u'},
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{"title", no_argument, 0, 't'},
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{"link", no_argument, 0, 'l'},
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{"description", no_argument, 0, 'd'},
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{"language", no_argument, 0, 'e'},
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{"webmaster", no_argument, 0, 'm'},
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{"copyright", no_argument, 0, 'c'},
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{"pubdate", no_argument, 0, 'p'},
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{"managingeditor", no_argument, 0, 'q'},
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{"generator", no_argument, 0, 'g'},
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{"docs", no_argument, 0, 'o'},
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{"ttl", no_argument, 0, 'w'},
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{"builddate", no_argument, 0, 'b'},
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{"help", no_argument, 0, 'h'},
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{0, 0, 0, 0},
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};
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struct option_flags {
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unsigned int title : 1;
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unsigned int link : 1;
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unsigned int description : 1;
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unsigned int language : 1;
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unsigned int webmaster : 1;
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unsigned int copyright : 1;
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unsigned int pubdate : 1;
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unsigned int managingeditor : 1;
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unsigned int generator : 1;
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unsigned int docs : 1;
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unsigned int ttl : 1;
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unsigned int builddate : 1;
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std::string uri;
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};
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void help(char*);
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option_flags* parse_options(int, char**);
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