This commit is contained in:
Daniel Sipka 2015-04-10 12:56:08 +02:00
parent 3b4580186c
commit e31207b9cf
17 changed files with 160 additions and 93 deletions

View file

@ -7,7 +7,8 @@ namespace mstch {
std::string render(
const std::string& tmplt,
const object& context,
const std::map<std::string,std::string>& partials = std::map<std::string,std::string>());
const std::map<std::string,std::string>& partials =
std::map<std::string,std::string>());
}
#endif // _MSTCH_H_

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@ -7,7 +7,8 @@
using namespace mstch;
std::string strip_whitespace(std::string tmplt) {
tmplt = std::regex_replace(tmplt, std::regex("\\{\\{![^\\}]*\\}\\}"), "{{!}}");
std::regex comment_match("\\{\\{![^\\}]*\\}\\}");
tmplt = std::regex_replace(tmplt, comment_match, "{{!}}");
std::ostringstream out;
std::istringstream in(tmplt);
std::string line;
@ -29,5 +30,6 @@ std::string mstch::render(
const std::string& tmplt, const object& root_object,
const std::map<std::string,std::string>& partials)
{
return render_context(root_object, partials).render(strip_whitespace(tmplt));
return render_context(root_object, partials)
.render(strip_whitespace(tmplt));
}

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@ -8,14 +8,18 @@ using namespace mstch;
const mstch::node render_context::null_node;
render_context::render_context(const mstch::object &object, const std::map<std::string,std::string>& partials):
render_context::render_context(
const mstch::object &object,
const std::map<std::string,std::string>& partials):
partials(partials),
objects{object},
state(new state::outside_section)
{
}
render_context::render_context(const mstch::object& object, const render_context& context):
render_context::render_context(
const mstch::object& object,
const render_context& context):
partials(context.partials),
objects(context.objects),
state(new state::outside_section)
@ -23,10 +27,16 @@ render_context::render_context(const mstch::object& object, const render_context
objects.push_front(object);
}
const mstch::node& render_context::find_node(const std::string &token, const std::deque<object> &current_objects) {
const mstch::node& render_context::find_node(
const std::string &token,
const std::deque<object> &current_objects)
{
if(token != "." && token.find('.') != std::string::npos) {
return find_node(token.substr(token.rfind('.') + 1),
{boost::get<object>(find_node(token.substr(0, token.rfind('.')), current_objects))});
return find_node(
token.substr(token.rfind('.') + 1),
{boost::get<object>(find_node(
token.substr(0, token.rfind('.')),
current_objects))});
} else {
for (auto& object: current_objects)
if (object.count(token) != 0)

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@ -12,18 +12,24 @@ namespace mstch {
class render_context {
private:
static const mstch::node null_node;
const mstch::node& find_node(const std::string& token, const std::deque<object>& current_objects);
const mstch::node& find_node(
const std::string& token,
const std::deque<object>& current_objects);
const std::map<std::string,std::string>& partials;
std::deque<mstch::object> objects;
std::unique_ptr<state::render_state> state;
public:
render_context(const mstch::object& object, const std::map<std::string,std::string>& partials);
render_context(const mstch::object& object, const render_context& context);
render_context(
const mstch::object& object,
const std::map<std::string,std::string>& partials);
render_context(
const mstch::object& object, const render_context& context);
const mstch::node& get_node(const std::string& token);
std::string render(const std::string& tmplt);
template<class T, class... Args>
void set_state(Args&&... args) {
state = std::unique_ptr<state::render_state>(new T(std::forward<Args>(args)...));
state = std::unique_ptr<state::render_state>(
new T(std::forward<Args>(args)...));
}
};
}

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@ -7,36 +7,43 @@
using namespace mstch;
state::in_inverted_section::in_inverted_section(const std::string& section_name):
state::in_inverted_section::in_inverted_section(
const std::string& section_name):
section_name(section_name),
skipped_openings(0)
{
}
std::string state::in_inverted_section::render(render_context& context, const token& token) {
std::string state::in_inverted_section::render(
render_context& ctx,
const token& token)
{
switch(token.type()) {
case token_type::section_close:
if(token.content() == section_name && skipped_openings == 0) {
std::ostringstream out;
if(boost::apply_visitor(visitor::is_node_empty(), context.get_node(section_name)))
out << render_context(mstch::object{}, context).render(section_text.str());
context.set_state<outside_section>();
return out.str();
} else {
skipped_openings--;
section_text << token.raw();
case token_type::section_close:
if(token.content() == section_name && skipped_openings == 0) {
std::ostringstream out;
auto& section_node = ctx.get_node(section_name);
if(boost::apply_visitor(visitor::is_node_empty(), section_node)) {
auto empty = mstch::object{};
out << render_context(empty, ctx).render(section_text.str());
}
break;
case token_type::inverted_section_open:
case token_type::section_open:
skipped_openings++;
case token_type::text:
case token_type::variable:
case token_type::unescaped_variable:
case token_type::comment:
case token_type::partial:
ctx.set_state<outside_section>();
return out.str();
} else {
skipped_openings--;
section_text << token.raw();
break;
}
break;
case token_type::inverted_section_open:
case token_type::section_open:
skipped_openings++;
case token_type::text:
case token_type::variable:
case token_type::unescaped_variable:
case token_type::comment:
case token_type::partial:
section_text << token.raw();
break;
}
return "";
}

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@ -6,14 +6,16 @@
namespace mstch {
namespace state {
class in_inverted_section : public render_state, public std::enable_shared_from_this<in_inverted_section> {
class in_inverted_section: public render_state {
private:
const std::string section_name;
std::ostringstream section_text;
int skipped_openings;
public:
in_inverted_section(const std::string &section_name);
std::string render(render_context &context, const token &token) override;
std::string render(
render_context &context,
const token &token) override;
};
}
}

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@ -5,34 +5,40 @@
using namespace mstch;
state::in_section::in_section(const std::string& section_name): section_name(section_name), skipped_openings(0) {
state::in_section::in_section(const std::string& section_name):
section_name(section_name), skipped_openings(0)
{
}
std::string state::in_section::render(render_context& context, const token& token) {
std::string state::in_section::render(
render_context& ctx,
const token& token)
{
switch(token.type()) {
case token_type::section_close:
if(token.content() == section_name && skipped_openings == 0) {
auto section_node = context.get_node(section_name);
std::string out("");
if (!boost::apply_visitor(visitor::is_node_empty(), section_node))
out = boost::apply_visitor(visitor::render_section(context, section_text.str()), section_node);
context.set_state<outside_section>();
return out;
} else {
skipped_openings--;
section_text << token.raw();
}
break;
case token_type::inverted_section_open:
case token_type::section_open:
skipped_openings++;
case token_type::text:
case token_type::variable:
case token_type::unescaped_variable:
case token_type::comment:
case token_type::partial:
case token_type::section_close:
if(token.content() == section_name && skipped_openings == 0) {
auto section_node = ctx.get_node(section_name);
std::string out("");
if (!boost::apply_visitor(visitor::is_node_empty(), section_node))
out = boost::apply_visitor(visitor::render_section(
ctx, section_text.str()), section_node);
ctx.set_state<outside_section>();
return out;
} else {
skipped_openings--;
section_text << token.raw();
break;
}
break;
case token_type::inverted_section_open:
case token_type::section_open:
skipped_openings++;
case token_type::text:
case token_type::variable:
case token_type::unescaped_variable:
case token_type::comment:
case token_type::partial:
section_text << token.raw();
break;
}
return "";
}

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@ -13,7 +13,9 @@ namespace mstch {
int skipped_openings;
public:
in_section(const std::string& section_name);
std::string render(render_context& context, const token& token) override;
std::string render(
render_context& context,
const token& token) override;
};
}
}

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@ -6,26 +6,30 @@
using namespace mstch;
std::string state::outside_section::render(render_context& context, const token& token) {
std::string state::outside_section::render(
render_context& ctx,
const token& token)
{
switch(token.type()) {
case token_type::section_open:
context.set_state<in_section>(token.content());
break;
case token_type::inverted_section_open:
context.set_state<in_inverted_section>(token.content());
break;
case token_type::variable:
case token_type::unescaped_variable:
return boost::apply_visitor(visitor::render_node(token.type() == token_type::variable),
context.get_node(token.content()));
case token_type::comment: break;
case token_type::text:
return token.raw();
case token_type::partial:
break;//render_context(mstch::object{{".", i}}, context).render(section);
case token_type::section_close:
// TODO ERROR
break;
case token_type::section_open:
ctx.set_state<in_section>(token.content());
break;
case token_type::inverted_section_open:
ctx.set_state<in_inverted_section>(token.content());
break;
case token_type::variable:
case token_type::unescaped_variable:
return boost::apply_visitor(
visitor::render_node(token.type() == token_type::variable),
ctx.get_node(token.content()));
case token_type::comment: break;
case token_type::text:
return token.raw();
case token_type::partial:
break;//render_context(mstch::object{{".", i}}, ctx).render(section);
case token_type::section_close:
// TODO ERROR
break;
}
return "";
}

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@ -5,9 +5,11 @@
namespace mstch {
namespace state {
class outside_section : public render_state {
class outside_section: public render_state {
public:
std::string render(render_context &context, const token &token) override;
std::string render(
render_context &context,
const token &token) override;
};
}
}

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@ -10,7 +10,9 @@ namespace mstch {
class render_state {
public:
virtual ~render_state() {}
virtual std::string render(render_context& context, const token& token) = 0;
virtual std::string render(
render_context& context,
const token& token) = 0;
};
}
}

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@ -6,7 +6,8 @@
using namespace mstch;
token::token(const std::string& raw_token): raw_val(raw_token) {
if(std::regex_match(raw_token, std::regex("\\{{2}[^\\}]*\\}{2}|\\{{3}[^\\}]*\\}{3}"))) {
std::regex token_match("\\{{2}[^\\}]*\\}{2}|\\{{3}[^\\}]*\\}{3}");
if(std::regex_match(raw_token, token_match)) {
std::string inside = raw_token.substr(2, raw_token.size() - 4);
inside = trim(inside);
if (inside.size() > 0 && inside.at(0) == '#') {
@ -24,7 +25,9 @@ token::token(const std::string& raw_token): raw_val(raw_token) {
} else if (inside.size() > 0 && inside.at(0) == '&') {
type_val = token_type::unescaped_variable;
content_val = inside.substr(1);
} else if (inside.size() > 0 && inside.at(0) == '{' && inside.at(inside.size() - 1) == '}') {
} else if (inside.size() > 0 && inside.at(0) == '{' &&
inside.at(inside.size() - 1) == '}')
{
type_val = token_type::unescaped_variable;
content_val = inside.substr(1, inside.size() - 2);
} else if (inside.size() > 0 && inside.at(0) == '!') {

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@ -5,7 +5,8 @@
namespace mstch {
enum class token_type {
text, variable, section_open, section_close, inverted_section_open, unescaped_variable, comment, partial
text, variable, section_open, section_close, inverted_section_open,
unescaped_variable, comment, partial
};
class token {

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@ -3,12 +3,18 @@
#include <algorithm>
std::string& mstch::ltrim(std::string& s) {
s.erase(s.begin(), std::find_if(s.begin(), s.end(), std::not1(std::ptr_fun<int, int>(std::isspace))));
s.erase(s.begin(), std::find_if(
s.begin(),
s.end(),
std::not1(std::ptr_fun<int, int>(std::isspace))));
return s;
}
std::string& mstch::rtrim(std::string& s) {
s.erase(std::find_if(s.rbegin(), s.rend(), std::not1(std::ptr_fun<int, int>(std::isspace))).base(), s.end());
s.erase(std::find_if(
s.rbegin(),
s.rend(),
std::not1(std::ptr_fun<int, int>(std::isspace))).base(), s.end());
return s;
}
@ -16,7 +22,11 @@ std::string& mstch::trim(std::string& s) {
return ltrim(rtrim(s));
}
std::string mstch::replace_all(std::string str, const std::string& from, const std::string& to) {
std::string mstch::replace_all(
std::string str,
const std::string& from,
const std::string& to)
{
size_t start_pos = 0;
while((start_pos = str.find(from, start_pos)) != std::string::npos) {
str.replace(start_pos, from.length(), to);

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@ -7,7 +7,10 @@ namespace mstch {
std::string& ltrim(std::string& s);
std::string& rtrim(std::string& s);
std::string& trim(std::string& s);
std::string replace_all(std::string str, const std::string& from, const std::string& to);
std::string replace_all(
std::string str,
const std::string& from,
const std::string& to);
std::string html_escape(std::string str);
}

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@ -3,7 +3,9 @@
using namespace mstch;
visitor::render_node::render_node(bool html_escaped): html_escaped(html_escaped) {
visitor::render_node::render_node(bool html_escaped):
html_escaped(html_escaped)
{
}
std::string visitor::render_node::operator()(const boost::blank& blank) const {

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@ -3,13 +3,17 @@
using namespace mstch;
visitor::render_section::render_section(render_context& context, const std::string& section):
visitor::render_section::render_section(
render_context& context,
const std::string& section):
context(context),
section(section)
{
}
std::string visitor::render_section::operator()(const boost::blank& blank) const {
std::string visitor::render_section::operator()(
const boost::blank& blank) const
{
return "";
}