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// cs/net/html/dom.hh
#ifndef CS_NET_HTML_DOM_HH
#define CS_NET_HTML_DOM_HH
#include <map>
#include <string>
namespace cs::net::html::dom {
#define str std::string
#define DOM_MULTICHILD(tag) \
template <typename... T> \
std::string tag(T... children) { \
return std::string("<" #tag ">") + \
(std::string(children) + ...) + \
std::string("</" #tag ">"); \
}
#define DOM_ONESTRCHILD(tag) \
inline std::string tag(std::string text) { \
return std::string("<" #tag ">") + text + \
std::string("</" #tag ">"); \
}
inline str html(str head, str body) {
return "<!DOCTYPE html><html>" + head + body + "</html>";
}
inline std::string nbsp() { return R"html( )html"; }
inline std::string copy() { return R"html(©)html"; }
DOM_MULTICHILD(head);
DOM_ONESTRCHILD(title);
inline str style(str css) {
return "<style>" + css + "</style>";
}
inline str script(str js) {
return "<script type=\"text/javascript\">" + js +
"</script>";
}
inline str meta(str name, str content) {
return "<meta name=\"" + name + "\" content=\"" +
content + "\">";
}
DOM_MULTICHILD(body);
DOM_MULTICHILD(button);
DOM_MULTICHILD(div);
DOM_MULTICHILD(li);
DOM_MULTICHILD(nav);
DOM_MULTICHILD(ol);
DOM_MULTICHILD(ul);
DOM_MULTICHILD(form);
DOM_MULTICHILD(p);
DOM_ONESTRCHILD(strong);
DOM_MULTICHILD(span);
DOM_ONESTRCHILD(h1);
DOM_ONESTRCHILD(h2);
DOM_ONESTRCHILD(h3);
DOM_ONESTRCHILD(code);
inline std::string a(std::string href, std::string child) {
return "<a href=\"" + href + "\">" + child + "</a>";
}
inline std::string hr() { return "<hr/>"; }
inline std::string meta(
std::map<std::string, std::string> attrs) {
std::string tag = "<meta";
for (const auto &attr : attrs) {
tag += " " + attr.first + "=\"" + attr.second + "\"";
}
tag += "/>";
return tag;
}
// Helper function to build attributes string from map
inline std::string BuildAttrs(
std::map<std::string, std::string> attrs) {
std::string result;
for (const auto &attr : attrs) {
result += " " + attr.first + "=\"" + attr.second + "\"";
}
return result;
}
// Self-closing input tag with attributes.
inline std::string input(
std::map<std::string, std::string> attrs) {
return std::string("<input") + BuildAttrs(attrs) + "/>";
}
inline std::string link(
std::map<std::string, std::string> attrs) {
return std::string("<link") + BuildAttrs(attrs) + "/>";
}
inline std::string script(
std::map<std::string, std::string> attrs) {
return std::string("<script") + BuildAttrs(attrs) +
"></script>";
}
// Convenience helper for checkbox inputs to ensure presence
// of type.
inline std::string checkbox(
std::map<std::string, std::string> attrs) {
attrs["type"] = "checkbox";
return input(attrs);
}
// Macro for tags with attributes and multiple children
#define DOM_MULTICHILD_ATTRS(tag) \
template <typename... T> \
inline std::string tag( \
std::map<std::string, std::string> attrs, \
T... children) { \
return std::string("<" #tag) + BuildAttrs(attrs) + \
">" + (std::string(children) + ...) + \
std::string("</" #tag ">"); \
}
// Macro for tags with attributes and single text child
#define DOM_ONESTRCHILD_ATTRS(tag) \
inline std::string tag( \
std::map<std::string, std::string> attrs, \
std::string text) { \
return std::string("<" #tag) + BuildAttrs(attrs) + \
">" + text + "</" #tag ">"; \
}
// Generate overloaded functions with attributes support
DOM_MULTICHILD_ATTRS(body);
DOM_MULTICHILD_ATTRS(button);
DOM_MULTICHILD_ATTRS(div);
DOM_MULTICHILD_ATTRS(label);
DOM_MULTICHILD_ATTRS(li);
DOM_MULTICHILD_ATTRS(nav);
DOM_MULTICHILD_ATTRS(ol);
DOM_MULTICHILD_ATTRS(span);
DOM_MULTICHILD_ATTRS(ul);
DOM_ONESTRCHILD_ATTRS(h1);
DOM_ONESTRCHILD_ATTRS(strong);
DOM_ONESTRCHILD_ATTRS(pre);
// Special case for a - takes href and child with optional
// attributes
inline std::string a(
std::map<std::string, std::string> attrs,
std::string href, std::string child) {
return "<a href=\"" + href + "\"" + BuildAttrs(attrs) +
">" + child + "</a>";
}
// Special case for p - supports both single text and
// multiple children
inline std::string p(
std::map<std::string, std::string> attrs,
std::string text) {
return std::string("<p") + BuildAttrs(attrs) + ">" +
text + "</p>";
}
template <typename... T>
inline std::string p(
std::map<std::string, std::string> attrs,
T... children) {
return std::string("<p") + BuildAttrs(attrs) + ">" +
(std::string(children) + ...) +
std::string("</p>");
}
// Special case for html - takes head and body
inline std::string html(
std::map<std::string, std::string> attrs, str head,
str body) {
return "<!DOCTYPE html><html" + BuildAttrs(attrs) + ">" +
head + body + "</html>";
}
#undef str
} // namespace cs::net::html::dom
#endif // CS_NET_HTML_DOM_HH