#include "Encoding.h"
-#include "debug.h"
#include "LaTeXFeatures.h"
#include "Lexer.h"
#include "LyXRC.h"
+#include "support/debug.h"
#include "support/FileName.h"
#include "support/lstrings.h"
#include "support/unicode.h"
+#include <boost/cstdint.hpp>
+
#include <sstream>
+using namespace std;
+using namespace lyx::support;
namespace lyx {
-using support::FileName;
-
-#ifndef CXX_GLOBAL_CSTD
-using std::strtol;
-#endif
-
-using std::endl;
-using std::string;
-
-
Encodings encodings;
namespace {
-char_type arabic_table[50][4] = {
+char_type arabic_table[172][4] = {
{0xfe80, 0xfe80, 0xfe80, 0xfe80}, // 0x0621 = hamza
{0xfe81, 0xfe82, 0xfe81, 0xfe82}, // 0x0622 = ligature madda on alef
{0xfe83, 0xfe84, 0xfe83, 0xfe84}, // 0x0623 = ligature hamza on alef
{0x0650, 0x0650, 0x0650, 0x0650}, // 0x0650 = kasra
{0x0651, 0x0651, 0x0651, 0x0651}, // 0x0651 = shadda
{0x0652, 0x0652, 0x0652, 0x0652}, // 0x0652 = sukun
+
+ {0, 0, 0, 0}, // 0x0653
+ {0, 0, 0, 0}, // 0x0654
+ {0, 0, 0, 0}, // 0x0655
+ {0, 0, 0, 0}, // 0x0656
+ {0, 0, 0, 0}, // 0x0657
+ {0, 0, 0, 0}, // 0x0658
+ {0, 0, 0, 0}, // 0x0659
+ {0, 0, 0, 0}, // 0x065a
+ {0, 0, 0, 0}, // 0x065b
+ {0, 0, 0, 0}, // 0x065c
+ {0, 0, 0, 0}, // 0x065d
+ {0, 0, 0, 0}, // 0x065e
+ {0, 0, 0, 0}, // 0x065f
+ {0, 0, 0, 0}, // 0x0660
+ {0, 0, 0, 0}, // 0x0661
+ {0, 0, 0, 0}, // 0x0662
+ {0, 0, 0, 0}, // 0x0663
+ {0, 0, 0, 0}, // 0x0664
+ {0, 0, 0, 0}, // 0x0665
+ {0, 0, 0, 0}, // 0x0666
+ {0, 0, 0, 0}, // 0x0667
+ {0, 0, 0, 0}, // 0x0668
+ {0, 0, 0, 0}, // 0x0669
+ {0, 0, 0, 0}, // 0x066a
+ {0, 0, 0, 0}, // 0x066b
+ {0, 0, 0, 0}, // 0x066c
+ {0, 0, 0, 0}, // 0x066d
+ {0, 0, 0, 0}, // 0x066e
+ {0, 0, 0, 0}, // 0x066f
+ {0, 0, 0, 0}, // 0x0670
+ {0, 0, 0, 0}, // 0x0671
+ {0, 0, 0, 0}, // 0x0672
+ {0, 0, 0, 0}, // 0x0673
+ {0, 0, 0, 0}, // 0x0674
+ {0, 0, 0, 0}, // 0x0675
+ {0, 0, 0, 0}, // 0x0676
+ {0, 0, 0, 0}, // 0x0677
+ {0, 0, 0, 0}, // 0x0678
+ {0, 0, 0, 0}, // 0x0679
+ {0, 0, 0, 0}, // 0x067a
+ {0, 0, 0, 0}, // 0x067b
+ {0, 0, 0, 0}, // 0x067c
+ {0, 0, 0, 0}, // 0x067d
+ {0xfb56, 0xfb57, 0xfb58, 0xfb59}, // 0x067e = peh
+ {0, 0, 0, 0}, // 0x067f
+ {0, 0, 0, 0}, // 0x0680
+ {0, 0, 0, 0}, // 0x0681
+ {0, 0, 0, 0}, // 0x0682
+ {0, 0, 0, 0}, // 0x0683
+ {0, 0, 0, 0}, // 0x0684
+ {0, 0, 0, 0}, // 0x0685
+ {0xfb7a, 0xfb7b, 0xfb7c, 0xfb7d}, // 0x0686 = tcheh
+ {0, 0, 0, 0}, // 0x0687
+ {0, 0, 0, 0}, // 0x0688
+ {0, 0, 0, 0}, // 0x0689
+ {0, 0, 0, 0}, // 0x068a
+ {0, 0, 0, 0}, // 0x068b
+ {0, 0, 0, 0}, // 0x068c
+ {0, 0, 0, 0}, // 0x068d
+ {0, 0, 0, 0}, // 0x068e
+ {0, 0, 0, 0}, // 0x068f
+ {0, 0, 0, 0}, // 0x0690
+ {0, 0, 0, 0}, // 0x0691
+ {0, 0, 0, 0}, // 0x0692
+ {0, 0, 0, 0}, // 0x0693
+ {0, 0, 0, 0}, // 0x0694
+ {0, 0, 0, 0}, // 0x0695
+ {0, 0, 0, 0}, // 0x0696
+ {0, 0, 0, 0}, // 0x0697
+ {0xfb8a, 0xfb8b, 0xfb8a, 0xfb8b}, // 0x0698 = jeh
+ {0, 0, 0, 0}, // 0x0699
+ {0, 0, 0, 0}, // 0x069a
+ {0, 0, 0, 0}, // 0x069b
+ {0, 0, 0, 0}, // 0x069c
+ {0, 0, 0, 0}, // 0x069d
+ {0, 0, 0, 0}, // 0x069e
+ {0, 0, 0, 0}, // 0x069f
+ {0, 0, 0, 0}, // 0x06a0
+ {0, 0, 0, 0}, // 0x06a1
+ {0, 0, 0, 0}, // 0x06a2
+ {0, 0, 0, 0}, // 0x06a3
+ {0, 0, 0, 0}, // 0x06a4
+ {0, 0, 0, 0}, // 0x06a5
+ {0, 0, 0, 0}, // 0x06a6
+ {0, 0, 0, 0}, // 0x06a7
+ {0, 0, 0, 0}, // 0x06a8
+ {0xfb8e, 0xfb8f, 0xfb90, 0xfb91}, // 0x06a9 = farsi kaf
+ {0, 0, 0, 0}, // 0x06aa
+ {0, 0, 0, 0}, // 0x06ab
+ {0, 0, 0, 0}, // 0x06ac
+ {0, 0, 0, 0}, // 0x06ad
+ {0, 0, 0, 0}, // 0x06ae
+ {0xfb92, 0xfb93, 0xfb94, 0xfb95}, // 0x06af = gaf
+ {0, 0, 0, 0}, // 0x06b0
+ {0, 0, 0, 0}, // 0x06b1
+ {0, 0, 0, 0}, // 0x06b2
+ {0, 0, 0, 0}, // 0x06b3
+ {0, 0, 0, 0}, // 0x06b4
+ {0, 0, 0, 0}, // 0x06b5
+ {0, 0, 0, 0}, // 0x06b6
+ {0, 0, 0, 0}, // 0x06b7
+ {0, 0, 0, 0}, // 0x06b8
+ {0, 0, 0, 0}, // 0x06b9
+ {0, 0, 0, 0}, // 0x06ba
+ {0, 0, 0, 0}, // 0x06bb
+ {0, 0, 0, 0}, // 0x06bc
+ {0, 0, 0, 0}, // 0x06bd
+ {0, 0, 0, 0}, // 0x06be
+ {0, 0, 0, 0}, // 0x06bf
+ {0, 0, 0, 0}, // 0x06c0
+ {0, 0, 0, 0}, // 0x06c1
+ {0, 0, 0, 0}, // 0x06c2
+ {0, 0, 0, 0}, // 0x06c3
+ {0, 0, 0, 0}, // 0x06c4
+ {0, 0, 0, 0}, // 0x06c5
+ {0, 0, 0, 0}, // 0x06c6
+ {0, 0, 0, 0}, // 0x06c7
+ {0, 0, 0, 0}, // 0x06c8
+ {0, 0, 0, 0}, // 0x06c9
+ {0, 0, 0, 0}, // 0x06ca
+ {0, 0, 0, 0}, // 0x06cb
+ {0xfbfc, 0xfbfd, 0xfbfe, 0xfbff} // 0x06cc = farsi yeh
};
char_type const arabic_start = 0x0621;
-char_type const arabic_end = 0x0652;
+char_type const arabic_end = 0x06cc;
/// Information about a single UCS4 character
};
-typedef std::map<char_type, CharInfo> CharInfoMap;
+typedef map<char_type, CharInfo> CharInfoMap;
CharInfoMap unicodesymbols;
+
+/// The highest code point in UCS4 encoding (1<<20 + 1<<16)
+char_type const max_ucs4 = 0x110000;
+
} // namespace anon
-Encoding::Encoding(string const & n, string const & l, string const & i)
- : Name_(n), LatexName_(l), iconvName_(i)
+EncodingException::EncodingException(char_type c)
+ : failed_char(c), par_id(0), pos(0)
+{
+}
+
+
+const char * EncodingException::what() const throw()
+{
+ return "Could not find LaTeX command for a character";
+}
+
+
+Encoding::Encoding(string const & n, string const & l, string const & i,
+ bool f, Encoding::Package p)
+ : Name_(n), LatexName_(l), iconvName_(i), fixedwidth_(f), package_(p)
{
- if (n == "ascii")
+ if (n == "ascii") {
// ASCII can encode 128 code points and nothing else
start_encodable_ = 128;
- else if (i == "UTF-8")
- // UTF8 can encode all 1<<20 + 1<<16 UCS4 code points
- start_encodable_ = 0x110000;
- else {
- start_encodable_ = 0;
- // temporarily switch off lyxerr, since we will generate iconv errors
- lyxerr.disable();
+ complete_ = true;
+ } else if (i == "UTF-8") {
+ // UTF8 can encode all UCS4 code points
+ start_encodable_ = max_ucs4;
+ complete_ = true;
+ } else {
+ complete_ = false;
+ }
+}
+
+
+void Encoding::init() const
+{
+ start_encodable_ = 0;
+ // temporarily switch off lyxerr, since we will generate iconv errors
+ lyxerr.disable();
+ if (fixedwidth_) {
+ // We do not need to check all UCS4 code points, it is enough
+ // if we check all 256 code points of this encoding.
for (unsigned short j = 0; j < 256; ++j) {
- char const c = j;
- std::vector<char_type> const ucs4 = eightbit_to_ucs4(&c, 1, i);
+ char const c = char(j);
+ vector<char_type> const ucs4 = eightbit_to_ucs4(&c, 1, iconvName_);
if (ucs4.size() == 1) {
char_type const c = ucs4[0];
CharInfoMap::const_iterator const it = unicodesymbols.find(c);
encodable_.insert(c);
}
}
- lyxerr.enable();
- CharSet::iterator it = encodable_.find(start_encodable_);
- while (it != encodable_.end()) {
- encodable_.erase(it);
- ++start_encodable_;
- it = encodable_.find(start_encodable_);
+ } else {
+ // We do not know how many code points this encoding has, and
+ // they do not have a direct representation as a single byte,
+ // therefore we need to check all UCS4 code points.
+ // This is expensive!
+ for (char_type c = 0; c < max_ucs4; ++c) {
+ vector<char> const eightbit = ucs4_to_eightbit(&c, 1, iconvName_);
+ if (!eightbit.empty()) {
+ CharInfoMap::const_iterator const it = unicodesymbols.find(c);
+ if (it == unicodesymbols.end() || !it->second.force)
+ encodable_.insert(c);
+ }
}
}
+ lyxerr.enable();
+ CharSet::iterator it = encodable_.find(start_encodable_);
+ while (it != encodable_.end()) {
+ encodable_.erase(it);
+ ++start_encodable_;
+ it = encodable_.find(start_encodable_);
+ }
+ complete_ = true;
}
docstring const Encoding::latexChar(char_type c) const
{
+ // assure the used encoding is properly initialized
+ if (!complete_)
+ init();
+ BOOST_ASSERT(complete_);
+
if (c < start_encodable_)
return docstring(1, c);
if (encodable_.find(c) == encodable_.end()) {
// c cannot be encoded in this encoding
CharInfoMap::const_iterator const it = unicodesymbols.find(c);
if (it == unicodesymbols.end())
- lyxerr << "Could not find LaTeX command for character 0x"
- << std::hex << c << std::dec
- << ".\nLaTeX export will fail."
- << endl;
+ throw EncodingException(c);
else
return it->second.command;
}
bool Encodings::is_arabic_special(char_type c)
{
return (c >= 0x0621 && c <= 0x0625) ||
- c == 0x0627 || c == 0x0629 ||
- c == 0x062f || c == 0x0648 ||
+ c == 0x0627 || c == 0x0629 ||
+ c == 0x062f || c == 0x0648 ||
(c >= 0x0630 && c <= 0x0632) ||
- c == 0x0649;
+ c == 0x0649 || c == 0x0698;
}
}
+bool Encodings::isKnownScriptChar(char_type const c, string & preamble)
+{
+ CharInfoMap::const_iterator const it = unicodesymbols.find(c);
+
+ if (it == unicodesymbols.end())
+ return false;
+
+ if (it->second.preamble != "textgreek" &&
+ it->second.preamble != "textcyr")
+ return false;
+
+ if (preamble.empty()) {
+ preamble = it->second.preamble;
+ return true;
+ }
+ return it->second.preamble == preamble;
+}
+
+
Encoding const * Encodings::getFromLyXName(string const & name) const
{
EncodingList::const_iterator it = encodinglist.find(name);
Encoding const * Encodings::getFromLaTeXName(string const & name) const
{
- // We don't use std::find_if because it makes copies of the pairs in
+ // We don't use find_if because it makes copies of the pairs in
// the map.
// This linear search is OK since we don't have many encodings.
// Users could even optimize it by putting the encodings they use
string flags;
if (symbolslex.next(true)) {
- std::istringstream is(symbolslex.getString());
+ istringstream is(symbolslex.getString());
// reading symbol directly does not work if
- // char_type == std::wchar_t.
+ // char_type == wchar_t.
boost::uint32_t tmp;
- if(!(is >> std::hex >> tmp))
+ if(!(is >> hex >> tmp))
break;
symbol = tmp;
} else
info.force = false;
while (!flags.empty()) {
string flag;
- flags = support::split(flags, flag, ',');
+ flags = split(flags, flag, ',');
if (flag == "combining")
info.combining = true;
else if (flag == "force")
info.force = true;
else
lyxerr << "Ignoring unknown flag `" << flag
- << "' for symbol `0x"
- << std::hex << symbol << std::dec
+ << "' for symbol `0x"
+ << hex << symbol << dec
<< "'." << endl;
}
if (!info.preamble.empty())
info.feature = info.preamble[0] != '\\';
- LYXERR(Debug::INFO)
- << "Read unicode symbol " << symbol << " '"
+ LYXERR(Debug::INFO, "Read unicode symbol " << symbol << " '"
<< to_utf8(info.command) << "' '" << info.preamble
- << "' " << info.combining << ' ' << info.feature
- << endl;
+ << "' " << info.combining << ' ' << info.feature);
unicodesymbols[symbol] = info;
}
string const latexname = lex.getString();
lex.next();
string const iconvname = lex.getString();
- LYXERR(Debug::INFO) << "Reading encoding " << name << endl;
- encodinglist[name] = Encoding(name, latexname, iconvname);
+ lex.next();
+ string const width = lex.getString();
+ bool fixedwidth = false;
+ if (width == "fixed")
+ fixedwidth = true;
+ else if (width == "variable")
+ fixedwidth = false;
+ else {
+ lex.printError("Encodings::read: "
+ "Unknown width: `$$Token'");
+ }
+
+ lex.next();
+ string const p = lex.getString();
+ Encoding::Package package = Encoding::none;
+ if (p == "none")
+ package = Encoding::none;
+ else if (p == "inputenc")
+ package = Encoding::inputenc;
+ else if (p == "CJK")
+ package = Encoding::CJK;
+ else {
+ lex.printError("Encodings::read: "
+ "Unknown package: `$$Token'");
+ }
+
+ LYXERR(Debug::INFO, "Reading encoding " << name);
+ encodinglist[name] = Encoding(name, latexname,
+ iconvname, fixedwidth,
+ package);
if (lex.lex() != et_end)
lex.printError("Encodings::read: "
"missing end");
projects / lyx.git / blobdiff