lyx_mirror/src/sgml.C
Angus Leeming 68b0cca2e7 Whitespace, only whitespace.
git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@9314 a592a061-630c-0410-9148-cb99ea01b6c8
2004-11-26 14:52:54 +00:00

250 lines
5.0 KiB
C

/**
* \file sgml.C
* This file is part of LyX, the document processor.
* Licence details can be found in the file COPYING.
*
* \author José Matos
* \author John Levon
*
* Full author contact details are available in file CREDITS.
*/
#include <config.h>
#include "sgml.h"
#include "buffer.h"
#include "bufferparams.h"
#include "counters.h"
#include "lyxtext.h"
#include "outputparams.h"
#include "paragraph.h"
#include "support/lstrings.h"
#include "support/std_ostream.h"
#include "support/tostr.h"
#include <boost/tuple/tuple.hpp>
#include <map>
#include <sstream>
using lyx::support::subst;
using std::make_pair;
using std::map;
using std::ostream;
using std::ostringstream;
using std::pair;
using std::string;
namespace sgml {
pair<bool, string> escapeChar(char c)
{
string str;
switch (c) {
case ' ':
return make_pair(true, string(" "));
break;
case '\0': // Ignore :-)
str.erase();
break;
case '&':
str = "&amp;";
break;
case '<':
str = "&lt;";
break;
case '>':
str = "&gt;";
break;
#if 0
case '$':
str = "&dollar;";
break;
case '#':
str = "&num;";
break;
case '%':
str = "&percnt;";
break;
case '[':
str = "&lsqb;";
break;
case ']':
str = "&rsqb;";
break;
case '{':
str = "&lcub;";
break;
case '}':
str = "&rcub;";
break;
case '~':
str = "&tilde;";
break;
case '"':
str = "&quot;";
break;
case '\\':
str = "&bsol;";
break;
#endif
default:
str = c;
break;
}
return make_pair(false, str);
}
string escapeString(string const & raw)
{
ostringstream bin;
for(string::size_type i = 0; i < raw.size(); ++i) {
bool ws;
string str;
boost::tie(ws, str) = sgml::escapeChar(raw[i]);
bin << str;
}
return bin.str();
}
string const uniqueID(string const label)
{
static unsigned int seed = 1000;
return label + tostr(++seed);
}
string cleanID(Buffer const & buf, OutputParams const & runparams, std::string const & orig)
{
// The standard DocBook SGML declaration only allows letters,
// digits, '-' and '.' in a name.
// Since users might change that declaration one has to cater
// for additional allowed characters.
// This routine replaces illegal characters by '-' or '.'
// and adds a number for uniqueness.
// If you know what you are doing, you can set allowed==""
// to disable this mangling.
LyXTextClass const & tclass = buf.params().getLyXTextClass();
string const allowed = runparams.flavor == OutputParams::XML? ".-_:":tclass.options();
if (allowed.empty())
return orig;
string::const_iterator it = orig.begin();
string::const_iterator end = orig.end();
string content;
typedef map<string, string> MangledMap;
static MangledMap mangledNames;
static int mangleID = 1;
MangledMap::const_iterator const known = mangledNames.find(orig);
if (known != mangledNames.end())
return (*known).second;
// make sure it starts with a letter
if (!isalpha(*it) && allowed.find(*it) >= allowed.size())
content += "x";
bool mangle = false;
for (; it != end; ++it) {
char c = *it;
if (isalpha(c) || isdigit(c) || c == '-' || c == '.' || allowed.find(c) < allowed.size())
content += c;
else if (c == '_' || c == ' ') {
mangle = true;
content += "-";
}
else if (c == ':' || c == ',' || c == ';' || c == '!') {
mangle = true;
content += ".";
}
else {
mangle = true;
}
}
if (mangle) {
content += "-" + tostr(mangleID++);
}
else if (isdigit(content[content.size()-1])) {
content += ".";
}
mangledNames[orig] = content;
return content;
}
void openTag(ostream & os, string const & name, string const & attribute)
{
// This should be fixed in layout files later.
string param = subst(attribute, "<", "\"");
param = subst(param, ">", "\"");
if (!name.empty() && name != "!-- --") {
os << '<' << name;
if (!param.empty())
os << " " << param;
os << '>';
}
}
void closeTag(ostream & os, string const & name)
{
if (!name.empty() && name != "!-- --")
os << "</" << name << '>';
}
void openTag(Buffer const & buf, ostream & os, OutputParams const & runparams, Paragraph const & par)
{
LyXLayout_ptr const & style = par.layout();
string const & name = style->latexname();
string param = style->latexparam();
Counters & counters = buf.params().getLyXTextClass().counters();
string id = par.getID(buf, runparams);
string attribute;
if(!id.empty()) {
if (param.find('#') != string::npos) {
string::size_type pos = param.find("id=<");
string::size_type end = param.find(">");
if( pos != string::npos and end != string::npos)
param.erase(pos, end-pos + 1);
}
attribute = id + ' ' + param;
} else {
if (param.find('#') != string::npos) {
if(!style->counter.empty())
counters.step(style->counter);
else
counters.step(style->latexname());
int i = counters.value(name);
attribute = subst(param, "#", tostr(i));
} else {
attribute = param;
}
}
openTag(os, name, attribute);
}
void closeTag(ostream & os, Paragraph const & par)
{
LyXLayout_ptr const & style = par.layout();
closeTag(os, style->latexname());
}
} // namespace sgml