mirror of
https://github.com/pocoproject/poco.git
synced 2025-10-28 19:51:58 +01:00
added PageCompiler
This commit is contained in:
Guenter Obiltschnig
357
PageCompiler/src/Page.cpp
Normal file
357
PageCompiler/src/Page.cpp
Normal file
@@ -0,0 +1,357 @@
|
||||
//
|
||||
// Page.cpp
|
||||
//
|
||||
// $Id: //poco/Main/PageCompiler/src/Page.cpp#1 $
|
||||
//
|
||||
// Copyright (c) 2007, Applied Informatics Software Engineering GmbH.
|
||||
// and Contributors.
|
||||
//
|
||||
// Permission is hereby granted, free of charge, to any person or organization
|
||||
// obtaining a copy of the software and accompanying documentation covered by
|
||||
// this license (the "Software") to use, reproduce, display, distribute,
|
||||
// execute, and transmit the Software, and to prepare derivative works of the
|
||||
// Software, and to permit third-parties to whom the Software is furnished to
|
||||
// do so, all subject to the following:
|
||||
//
|
||||
// The copyright notices in the Software and this entire statement, including
|
||||
// the above license grant, this restriction and the following disclaimer,
|
||||
// must be included in all copies of the Software, in whole or in part, and
|
||||
// all derivative works of the Software, unless such copies or derivative
|
||||
// works are solely in the form of machine-executable object code generated by
|
||||
// a source language processor.
|
||||
//
|
||||
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||
// FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
|
||||
// SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
|
||||
// FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
|
||||
// ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
|
||||
// DEALINGS IN THE SOFTWARE.
|
||||
//
|
||||
|
||||
|
||||
#include "Page.h"
|
||||
#include "Poco/FileStream.h"
|
||||
#include "Poco/CountingStream.h"
|
||||
#include "Poco/Path.h"
|
||||
#include "Poco/Exception.h"
|
||||
#include <sstream>
|
||||
#include <cctype>
|
||||
|
||||
|
||||
const std::string Page::MARKUP_BEGIN("\tostr << \"");
|
||||
const std::string Page::MARKUP_END("\";\n");
|
||||
const std::string Page::EXPR_BEGIN("\tostr << ");
|
||||
const std::string Page::EXPR_END(";\n");
|
||||
|
||||
|
||||
Page::Page(const std::string& basePath)
|
||||
{
|
||||
_headerDecls.reserve(4096);
|
||||
_implDecls.reserve(8192);
|
||||
_paths.push_back(basePath);
|
||||
}
|
||||
|
||||
|
||||
Page::~Page()
|
||||
{
|
||||
}
|
||||
|
||||
|
||||
void Page::addHeaderDecls(const std::string& decls)
|
||||
{
|
||||
_headerDecls.append("\n");
|
||||
_headerDecls.append(decls);
|
||||
}
|
||||
|
||||
|
||||
void Page::addImplDecls(const std::string& decls)
|
||||
{
|
||||
_implDecls.append("\n");
|
||||
_implDecls.append(decls);
|
||||
}
|
||||
|
||||
|
||||
void Page::addAttrs(const std::string& attrs)
|
||||
{
|
||||
_attrs.append(attrs);
|
||||
}
|
||||
|
||||
|
||||
void Page::parse(std::istream& pageStream)
|
||||
{
|
||||
std::ostringstream handlerStream;
|
||||
parse(pageStream, handlerStream);
|
||||
_handler = handlerStream.str();
|
||||
}
|
||||
|
||||
|
||||
void Page::parse(std::istream& pageStream, std::ostream& handlerStream)
|
||||
{
|
||||
ParsingState state = STATE_MARKUP;
|
||||
|
||||
_attrs.clear();
|
||||
handlerStream << MARKUP_BEGIN;
|
||||
|
||||
Poco::CountingInputStream countingPageStream(pageStream);
|
||||
std::string token;
|
||||
nextToken(pageStream, token);
|
||||
while (!token.empty())
|
||||
{
|
||||
if (token == "<%")
|
||||
{
|
||||
if (state == STATE_MARKUP)
|
||||
{
|
||||
handlerStream << MARKUP_END;
|
||||
state = STATE_BLOCK;
|
||||
}
|
||||
else handlerStream << token;
|
||||
}
|
||||
else if (token == "<%!")
|
||||
{
|
||||
if (state == STATE_MARKUP)
|
||||
{
|
||||
handlerStream << MARKUP_END;
|
||||
state = STATE_IMPLDECL;
|
||||
}
|
||||
else handlerStream << token;
|
||||
}
|
||||
else if (token == "<%!!")
|
||||
{
|
||||
if (state == STATE_MARKUP)
|
||||
{
|
||||
handlerStream << MARKUP_END;
|
||||
state = STATE_HDRDECL;
|
||||
}
|
||||
else handlerStream << token;
|
||||
}
|
||||
else if (token == "<%--")
|
||||
{
|
||||
if (state == STATE_MARKUP)
|
||||
{
|
||||
handlerStream << MARKUP_END;
|
||||
state = STATE_COMMENT;
|
||||
}
|
||||
else handlerStream << token;
|
||||
}
|
||||
else if (token == "<%@")
|
||||
{
|
||||
if (state == STATE_MARKUP)
|
||||
{
|
||||
handlerStream << MARKUP_END;
|
||||
state = STATE_ATTR;
|
||||
}
|
||||
else handlerStream << token;
|
||||
}
|
||||
else if (token == "<%=")
|
||||
{
|
||||
if (state == STATE_MARKUP)
|
||||
{
|
||||
handlerStream << MARKUP_END;
|
||||
handlerStream << EXPR_BEGIN;
|
||||
state = STATE_EXPR;
|
||||
}
|
||||
else handlerStream << token;
|
||||
}
|
||||
else if (token == "%>")
|
||||
{
|
||||
if (state == STATE_EXPR)
|
||||
{
|
||||
handlerStream << EXPR_END;
|
||||
handlerStream << MARKUP_BEGIN;
|
||||
state = STATE_MARKUP;
|
||||
}
|
||||
else if (state == STATE_ATTR)
|
||||
{
|
||||
parseAttributes(handlerStream);
|
||||
_attrs.clear();
|
||||
handlerStream << MARKUP_BEGIN;
|
||||
state = STATE_MARKUP;
|
||||
}
|
||||
else if (state != STATE_MARKUP)
|
||||
{
|
||||
handlerStream << MARKUP_BEGIN;
|
||||
state = STATE_MARKUP;
|
||||
}
|
||||
else handlerStream << token;
|
||||
}
|
||||
else
|
||||
{
|
||||
switch (state)
|
||||
{
|
||||
case STATE_MARKUP:
|
||||
if (token == "\n")
|
||||
{
|
||||
handlerStream << "\\n";
|
||||
handlerStream << MARKUP_END;
|
||||
handlerStream << MARKUP_BEGIN;
|
||||
}
|
||||
else if (token == "\t")
|
||||
{
|
||||
handlerStream << "\\t";
|
||||
}
|
||||
else if (token == "\"")
|
||||
{
|
||||
handlerStream << "\\\"";
|
||||
}
|
||||
else if (token != "\r")
|
||||
{
|
||||
handlerStream << token;
|
||||
}
|
||||
break;
|
||||
case STATE_IMPLDECL:
|
||||
_implDecls += token;
|
||||
break;
|
||||
case STATE_HDRDECL:
|
||||
_headerDecls += token;
|
||||
break;
|
||||
case STATE_BLOCK:
|
||||
handlerStream << token;
|
||||
break;
|
||||
case STATE_EXPR:
|
||||
handlerStream << token;
|
||||
break;
|
||||
case STATE_COMMENT:
|
||||
break;
|
||||
case STATE_ATTR:
|
||||
_attrs += token;
|
||||
break;
|
||||
}
|
||||
}
|
||||
nextToken(pageStream, token);
|
||||
}
|
||||
|
||||
if (state == STATE_MARKUP)
|
||||
{
|
||||
handlerStream << MARKUP_END;
|
||||
}
|
||||
else throw Poco::SyntaxException("unclosed meta or code block", where());
|
||||
}
|
||||
|
||||
|
||||
void Page::parseAttributes(std::ostream& handlerStream)
|
||||
{
|
||||
static const int eof = std::char_traits<char>::eof();
|
||||
|
||||
std::string basename;
|
||||
std::istringstream istr(_attrs);
|
||||
int ch = istr.get();
|
||||
while (ch != eof && std::isspace(ch)) ch = istr.get();
|
||||
while (ch != eof && std::isalnum(ch)) { basename += (char) ch; ch = istr.get(); }
|
||||
while (ch != eof && std::isspace(ch)) ch = istr.get();
|
||||
while (ch != eof)
|
||||
{
|
||||
std::string name(basename + ".");
|
||||
std::string value;
|
||||
while (ch != eof && std::isalnum(ch)) { name += (char) ch; ch = istr.get(); }
|
||||
while (ch != eof && std::isspace(ch)) ch = istr.get();
|
||||
if (ch != '=') throw Poco::SyntaxException("bad attribute syntax: '=' expected", where());
|
||||
ch = istr.get();
|
||||
while (ch != eof && std::isspace(ch)) ch = istr.get();
|
||||
if (ch != '"') throw Poco::SyntaxException("bad attribute syntax: '\"' expected", where());
|
||||
ch = istr.get();
|
||||
while (ch != eof && ch != '"') { value += (char) ch; ch = istr.get(); }
|
||||
if (ch != '"') throw Poco::SyntaxException("bad attribute syntax: '\"' expected", where());
|
||||
ch = istr.get();
|
||||
handleAttribute(name, value, handlerStream);
|
||||
while (ch != eof && std::isspace(ch)) ch = istr.get();
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
void Page::nextToken(std::istream& istr, std::string& token)
|
||||
{
|
||||
token.clear();
|
||||
int ch = istr.get();
|
||||
if (ch != -1)
|
||||
{
|
||||
if (ch == '<' && istr.peek() == '%')
|
||||
{
|
||||
token += "<%";
|
||||
ch = istr.get();
|
||||
ch = istr.peek();
|
||||
switch (ch)
|
||||
{
|
||||
case '!':
|
||||
ch = istr.get();
|
||||
token += (char) ch;
|
||||
if (istr.peek() == '!')
|
||||
{
|
||||
ch = istr.get();
|
||||
token += (char) ch;
|
||||
}
|
||||
break;
|
||||
case '=':
|
||||
ch = istr.get();
|
||||
token += (char) ch;
|
||||
break;
|
||||
case '@':
|
||||
ch = istr.get();
|
||||
token += (char) ch;
|
||||
break;
|
||||
case '-':
|
||||
ch = istr.get();
|
||||
token += (char) ch;
|
||||
if (istr.peek() == '-')
|
||||
{
|
||||
ch = istr.get();
|
||||
token += (char) ch;
|
||||
}
|
||||
break;
|
||||
}
|
||||
}
|
||||
else if (ch == '%' && istr.peek() == '>')
|
||||
{
|
||||
token += "%>";
|
||||
ch = istr.get();
|
||||
}
|
||||
else token += (char) ch;
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
void Page::handleAttribute(const std::string& name, const std::string& value, std::ostream& handlerStream)
|
||||
{
|
||||
if (name == "include.page")
|
||||
{
|
||||
include(value, handlerStream);
|
||||
}
|
||||
else
|
||||
{
|
||||
set(name, value);
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
void Page::include(const std::string& path, std::ostream& handlerStream)
|
||||
{
|
||||
Poco::Path currentPath(_paths.back());
|
||||
Poco::Path includePath(path);
|
||||
currentPath.resolve(includePath);
|
||||
handlerStream << "\t// begin include " << currentPath.toString() << "\n";
|
||||
_paths.push_back(currentPath.toString());
|
||||
if (_paths.size() > 100) throw Poco::ApplicationException("Too many includes", where());
|
||||
Poco::FileInputStream includeStream(currentPath.toString());
|
||||
parse(includeStream, handlerStream);
|
||||
_paths.pop_back();
|
||||
handlerStream << "\t// end include " << currentPath.toString() << "\n";
|
||||
}
|
||||
|
||||
|
||||
std::string Page::where()
|
||||
{
|
||||
std::string result("in file '");
|
||||
std::vector<std::string>::reverse_iterator it = _paths.rbegin();
|
||||
result += *it;
|
||||
result += "'";
|
||||
++it;
|
||||
while (it != _paths.rend())
|
||||
{
|
||||
result += "\n\tincluded from file ";
|
||||
result += "'";
|
||||
result += *it;
|
||||
result += "'";
|
||||
++it;
|
||||
}
|
||||
return result;
|
||||
}
|
||||
Reference in New Issue
Block a user