Add output for rss items
This commit is contained in:
Clortox
parent
f028458841
commit
95e822bbc6
@ -10,4 +10,4 @@
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* Set to 1 to compile and run the test suite
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*/
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#define _TESTS_ 1
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#define _TESTS_ 0
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@ -32,11 +32,16 @@ int main(int argc, char** argv) {
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if(!feed.isOk())
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exit(-1);
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//display requested attributes
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//display requested attributes and items
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std::string output = rss_utils::rss_to_list(feed, opts);
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std::cout << output << std::endl;
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if(opts->items != nullptr){
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feed.getItems();
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output += "\n" + rss_utils::rss_to_items(feed, opts);
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}
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std::cout << output << std::endl;
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delete opts;
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return 0;
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127
src/options.cpp
127
src/options.cpp
@ -7,29 +7,49 @@
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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 << "Usage: " << progName << " [-u FEED_URI] [CHANNEL FLAGS] ";
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std::cout << "[-i ITEM_INDEX] [ITEM FLAGS]\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 << " [-u, --uri] 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 << " [-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 << " [-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 << " content changed\n";
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std::cout << " [-i, --item] INDEX Provide index of item to display\n";
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std::cout << " If no index is provided, assume the first\n";
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std::cout << " item in the feed. All following flags will\n";
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std::cout << " be parsed as item options, till another\n";
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std::cout << " item is provided\n\n";
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std::cout << "Item options:\n";
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std::cout << " [-t, --title] Get title of item\n";
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std::cout << " [-l, --link] Get link\n";
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std::cout << " [-d, --description] Get description\n";
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std::cout << " [-a, --author] Get author\n";
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std::cout << " [-z, --category] Get category list\n";
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std::cout << " [-f, --comments] Get link to comments\n";
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std::cout << " [-j, --guid] Get GUID\n";
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std::cout << " [-p, --pubdate] Get publishing date\n";
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std::cout << " [-s, --source] Get source of item\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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std::cout << " [-h, --help] Show this message\n\n";
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std::cout << "For more information, refer to the RSS 2.0 documentation\n";
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std::cout << "https://validator.w3.org/feed/docs/rss2.html\n";
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exit(1);
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}
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@ -37,8 +57,13 @@ void help(char* progName){
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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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item_flags* current_item = nullptr;
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option_flags* ret = new option_flags;
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ret->item_count = 0;
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ret->items = nullptr;
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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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@ -50,13 +75,22 @@ option_flags* parse_options(int argc, char** argv) {
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ret->uri = std::string(optarg);
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break;
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case 't':
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if(current_item == nullptr)
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ret->title ^= 1;
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else
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current_item->title ^= 1;
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break;
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case 'l':
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if(current_item == nullptr)
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ret->link ^= 1;
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else
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current_item->link ^= 1;
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break;
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case 'd':
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if(current_item == nullptr)
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ret->description ^= 1;
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else
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current_item->description ^= 1;
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break;
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case 'e':
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ret->language ^= 1;
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@ -68,7 +102,10 @@ option_flags* parse_options(int argc, char** argv) {
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ret->copyright ^= 1;
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break;
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case 'p':
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if(current_item == nullptr)
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ret->pubdate ^= 1;
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else
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current_item->pubdate ^= 1;
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break;
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case 'q':
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ret->managingeditor ^= 1;
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@ -85,7 +122,85 @@ option_flags* parse_options(int argc, char** argv) {
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case 'b':
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ret->builddate ^= 1;
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break;
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case 'i':
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if(ret->items == nullptr){
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ret->items = new item_flags[ret->item_count + 1];
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current_item = &(ret->items[0]);
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ret->item_count++;
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current_item->index = optarg ? atoi(optarg) : 0;
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} else {
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item_flags* new_flags = new item_flags[ret->item_count + 1];
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for(unsigned int i=0;i<ret->item_count;++i)
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new_flags[i] = ret->items[i];
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delete ret->items;
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ret->items = new_flags;
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current_item = &(ret->items[ret->item_count]);
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ret->item_count++;
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current_item->index = optarg ? atoi(optarg) : 0;
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}
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break;
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case 'a':
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if(current_item == nullptr){
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std::cerr << "Invalid option in this context: [-a --author]" << std::endl;
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std::cerr << "Did you provide the [-i --index] flag first?" << std::endl;
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} else
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current_item->author ^= 1;
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break;
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case 'z':
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if(current_item == nullptr){
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std::cerr << "Invalid option in this context: [-z --category]" << std::endl;
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std::cerr << "Did you provide the [-i --index] flag first?" << std::endl;
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} else
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current_item->category ^= 1;
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break;
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case 'f':
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if(current_item == nullptr){
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std::cerr << "Invalid option in this context: [-f --comments]" << std::endl;
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std::cerr << "Did you provide the [-i --index] flag first?" << std::endl;
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} else
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current_item->comments ^= 1;
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break;
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case 'j':
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if(current_item == nullptr){
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std::cerr << "Invalid option in this context: [-j --guid]" << std::endl;
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std::cerr << "Did you provide the [-i --index] flag first?" << std::endl;
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} else
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current_item->guid ^= 1;
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break;
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case 's':
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if(current_item == nullptr){
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std::cerr << "Invalid option in this context: [-s --source]" << std::endl;
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std::cerr << "Did you provide the [-i --index] flag first?" << std::endl;
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} else
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current_item->source ^= 1;
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break;
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case ':': //go here if flag that requires argument is passed, but no arg given
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switch(optopt){
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case 'i':
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if(ret->items == nullptr){
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ret->item_count++;
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ret->items = new item_flags[ret->item_count];
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current_item = &(ret->items[0]);
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current_item->index = 1;
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} else {
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item_flags* new_flags = new item_flags[ret->item_count + 1];
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for(unsigned int i=0;i<ret->item_count;++i)
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new_flags[i] = ret->items[i];
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delete ret->items;
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ret->items = new_flags;
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current_item = &(ret->items[ret->item_count]);
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ret->item_count++;
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current_item->index = 1;
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}
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break;
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default:
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std::cerr << "Invalid use: option -" << (char)optopt
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<< " requires an argument" << std::endl;
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break;
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}
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break;
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case '?':
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std::cerr << "Unknown option: " << (char)optopt << std::endl;
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case 'h':
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help(argv[0]);
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break;
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@ -11,11 +11,12 @@
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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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constexpr char optarg_string[] = ":u:tldemcpqgowbi::azfjsh";
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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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@ -28,10 +29,32 @@ static struct option long_options[] =
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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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{"item", optional_argument, 0, 'i'},
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{"author", no_argument, 0, 'a'},
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{"category", no_argument, 0, 'z'},
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{"comments", no_argument, 0, 'f'},
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{"guid", no_argument, 0, 'j'},
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{"source", no_argument, 0, 's'},
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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 item_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 author : 1;
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unsigned int category : 1;
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unsigned int comments : 1;
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unsigned int guid : 1;
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unsigned int pubdate : 1;
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unsigned int source : 1;
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int index;
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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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@ -46,8 +69,11 @@ struct option_flags {
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unsigned int ttl : 1;
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unsigned int builddate : 1;
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item_flags* items;
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unsigned int item_count;
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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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@ -15,7 +15,6 @@
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#include <map>
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#include <iostream>
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#include <stdexcept>
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#include "tylers_utils.hpp"
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#include <rapidxml/rapidxml.hpp>
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#include <rapidxml/rapidxml_print.hpp>
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@ -11,42 +11,30 @@ using namespace rss_utils;
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std::string rss_utils::rss_to_list(const rss& rss_obj, const option_flags* flags){
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std::string ret;
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if(flags->title){
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if(flags->title)
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ret += rss_obj.getTitle() + "\n";
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}
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if(flags->link){
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if(flags->link)
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ret += rss_obj.getLink() + "\n";
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}
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if(flags->description){
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if(flags->description)
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ret += rss_obj.getDescription() + "\n";
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}
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if(flags->language){
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if(flags->language)
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ret += rss_obj.getLanguage() + "\n";
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}
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if(flags->webmaster){
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if(flags->webmaster)
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ret += rss_obj.getWebMaster() + "\n";
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}
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if(flags->copyright){
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if(flags->copyright)
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ret += rss_obj.getCopyright() + "\n";
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}
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if(flags->pubdate){
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if(flags->pubdate)
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ret += rss_obj.getPubDate() + "\n";
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}
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if(flags->managingeditor){
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if(flags->managingeditor)
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ret += rss_obj.getManagingEditor() + "\n";
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}
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if(flags->generator){
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if(flags->generator)
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ret += rss_obj.getGenerator() + "\n";
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}
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if(flags->docs){
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if(flags->docs)
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ret += rss_obj.getDocs() + "\n";
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}
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if(flags->ttl){
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if(flags->ttl)
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ret += rss_obj.getTTL() + "\n";
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}
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if(flags->builddate){
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if(flags->builddate)
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ret += rss_obj.getLastBuildDate() + "\n";
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}
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if(ret.length() > 0)
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ret.pop_back();
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@ -55,3 +43,42 @@ std::string rss_utils::rss_to_list(const rss& rss_obj, const option_flags* flags
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return ret;
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}
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std::string rss_utils::rss_to_items(const rss& rss_obj, const option_flags* flags){
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item_flags* items = flags->items;
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int maxItem = rss_obj.getItemCount();
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std::string ret;
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for(unsigned int i=0; i < flags->item_count; ++i, ++items){
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//if has a valid index
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if(items->index >= 0 && items->index < maxItem){
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rss_utils::item cur_item = rss_obj[items->index];
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if(items->title)
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ret += cur_item.getTitle() + "\n";
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if(items->link)
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ret += cur_item.getLink() + "\n";
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if(items->description)
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ret += cur_item.getDescription() + "\n";
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if(items->author)
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ret += cur_item.getAuthor() + "\n";
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if(items->category)
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ret += cur_item.getCategory() + "\n";
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if(items->comments)
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ret += cur_item.getComments() + "\n";
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if(items->guid)
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ret += cur_item.getGuid() + "\n";
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if(items->pubdate)
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ret += cur_item.getPubDate() + "\n";
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if(items->source)
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ret += cur_item.getSource() + "\n";
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} else
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std::cerr << "Index on item " << i << " is not valid!" << std::endl;
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}
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if(ret.length() > 0)
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ret.pop_back();
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else
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ret = "<No arguments given for items>";
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return ret;
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}
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@ -13,6 +13,6 @@
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namespace rss_utils {
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std::string rss_to_list(const rss&, const option_flags*);
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//std::string rss_to_items(const rss&
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std::string rss_to_items(const rss&, const option_flags*);
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}
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