* This file is part of LyX, the document processor.
* Licence details can be found in the file COPYING.
*
- * \author Lars Gullik Bjønnes
+ * \author Lars Gullik Bjønnes
* \author Jean-Marc Lasgouttes
* \author Dekel Tsur
*
#include "Encoding.h"
-#include "Buffer.h"
-#include "InsetIterator.h"
-#include "LaTeXFeatures.h"
#include "Lexer.h"
-#include "LyXRC.h"
#include "support/debug.h"
-#include "support/FileName.h"
+#include "support/gettext.h"
#include "support/lstrings.h"
+#include "support/mutex.h"
+#include "support/textutils.h"
#include "support/unicode.h"
#include <boost/cstdint.hpp>
+#include <iterator>
+#include <algorithm>
#include <sstream>
using namespace std;
namespace lyx {
+int const Encoding::any = -1;
+
Encodings encodings;
Encodings::MathCommandSet Encodings::mathcmd;
namespace {
-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
- {0xfe85, 0xfe86, 0xfe85, 0xfe86}, // 0x0624 = ligature hamza on waw
- {0xfe87, 0xfe88, 0xfe87, 0xfe88}, // 0x0625 = ligature hamza under alef
- {0xfe89, 0xfe8a, 0xfe8b, 0xfe8c}, // 0x0626 = ligature hamza on ya
- {0xfe8d, 0xfe8e, 0xfe8d, 0xfe8e}, // 0x0627 = alef
- {0xfe8f, 0xfe90, 0xfe91, 0xfe92}, // 0x0628 = baa
- {0xfe93, 0xfe94, 0xfe93, 0xfe94}, // 0x0629 = taa marbuta
- {0xfe95, 0xfe96, 0xfe97, 0xfe98}, // 0x062a = taa
- {0xfe99, 0xfe9a, 0xfe9b, 0xfe9c}, // 0x062b = thaa
- {0xfe9d, 0xfe9e, 0xfe9f, 0xfea0}, // 0x062c = jeem
- {0xfea1, 0xfea2, 0xfea3, 0xfea4}, // 0x062d = haa
- {0xfea5, 0xfea6, 0xfea7, 0xfea8}, // 0x062e = khaa
- {0xfea9, 0xfeaa, 0xfea9, 0xfeaa}, // 0x062f = dal
-
- {0xfeab, 0xfeac, 0xfeab, 0xfeac}, // 0x0630 = thal
- {0xfead, 0xfeae, 0xfead, 0xfeae}, // 0x0631 = ra
- {0xfeaf, 0xfeb0, 0xfeaf, 0xfeb0}, // 0x0632 = zain
- {0xfeb1, 0xfeb2, 0xfeb3, 0xfeb4}, // 0x0633 = seen
- {0xfeb5, 0xfeb6, 0xfeb7, 0xfeb8}, // 0x0634 = sheen
- {0xfeb9, 0xfeba, 0xfebb, 0xfebc}, // 0x0635 = sad
- {0xfebd, 0xfebe, 0xfebf, 0xfec0}, // 0x0636 = dad
- {0xfec1, 0xfec2, 0xfec3, 0xfec4}, // 0x0637 = tah
- {0xfec5, 0xfec6, 0xfec7, 0xfec8}, // 0x0638 = zah
- {0xfec9, 0xfeca, 0xfecb, 0xfecc}, // 0x0639 = ain
- {0xfecd, 0xfece, 0xfecf, 0xfed0}, // 0x063a = ghain
- {0, 0, 0, 0}, // 0x063b
- {0, 0, 0, 0}, // 0x063c
- {0, 0, 0, 0}, // 0x063d
- {0, 0, 0, 0}, // 0x063e
- {0, 0, 0, 0}, // 0x063f
-
- {0, 0, 0, 0}, // 0x0640
- {0xfed1, 0xfed2, 0xfed3, 0xfed4}, // 0x0641 = fa
- {0xfed5, 0xfed6, 0xfed7, 0xfed8}, // 0x0642 = qaf
- {0xfed9, 0xfeda, 0xfedb, 0xfedc}, // 0x0643 = kaf
- {0xfedd, 0xfede, 0xfedf, 0xfee0}, // 0x0644 = lam
- {0xfee1, 0xfee2, 0xfee3, 0xfee4}, // 0x0645 = meem
- {0xfee5, 0xfee6, 0xfee7, 0xfee8}, // 0x0646 = noon
- {0xfee9, 0xfeea, 0xfeeb, 0xfeec}, // 0x0647 = ha
- {0xfeed, 0xfeee, 0xfeed, 0xfeee}, // 0x0648 = waw
- {0xfeef, 0xfef0, 0xfeef, 0xfef0}, // 0x0649 = alef maksura
- {0xfef1, 0xfef2, 0xfef3, 0xfef4}, // 0x064a = ya
- {0x065b, 0x065b, 0x065b, 0x065b}, // 0x064b = fathatan
- {0x065c, 0x065c, 0x065c, 0x065c}, // 0x064c = dammatan
- {0x064d, 0x064d, 0x064d, 0x064d}, // 0x064d = kasratan
- {0x064e, 0x064e, 0x064e, 0x064e}, // 0x064e = fatha
- {0x064f, 0x064f, 0x064f, 0x064f}, // 0x064f = damma
-
- {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 = 0x06cc;
-
-
-/// Information about a single UCS4 character
-struct CharInfo {
- /// LaTeX command (text mode) for this character
- docstring textcommand;
- /// LaTeX command (math mode) for this character
- docstring mathcommand;
- /// Needed LaTeX preamble (or feature) for text mode
- string textpreamble;
- /// Needed LaTeX preamble (or feature) for math mode
- string mathpreamble;
- /// Is this a combining character?
- bool combining;
- /// Is \c textpreamble a feature known by LaTeXFeatures, or a raw LaTeX
- /// command?
- bool textfeature;
- /// Is \c mathpreamble a feature known by LaTeXFeatures, or a raw LaTeX
- /// command?
- bool mathfeature;
- /// Always force the LaTeX command, even if the encoding contains
- /// this character?
- bool force;
-};
-
-
typedef map<char_type, CharInfo> CharInfoMap;
CharInfoMap unicodesymbols;
-typedef std::set<char_type> CharSet;
+typedef set<char_type> CharSet;
+typedef map<string, CharSet> CharSetMap;
CharSet forced;
+CharSetMap forcedselected;
-typedef std::set<char_type> MathAlphaSet;
+typedef set<char_type> MathAlphaSet;
MathAlphaSet mathalpha;
/// The highest code point in UCS4 encoding (1<<20 + 1<<16)
char_type const max_ucs4 = 0x110000;
-} // namespace anon
+} // namespace
EncodingException::EncodingException(char_type c)
}
+CharInfo::CharInfo(
+ docstring const & textcommand, docstring const & mathcommand,
+ std::string const & textpreamble, std::string const & mathpreamble,
+ std::string const & tipashortcut, unsigned int flags)
+ : textcommand_(textcommand), mathcommand_(mathcommand),
+ textpreamble_(textpreamble), mathpreamble_(mathpreamble),
+ tipashortcut_(tipashortcut), flags_(flags)
+{
+}
+
+
Encoding::Encoding(string const & n, string const & l, string const & g,
- string const & i, bool f, Encoding::Package p)
- : name_(n), latexName_(l), guiName_(g), iconvName_(i), fixedwidth_(f), package_(p)
+ string const & i, bool f, bool u, Encoding::Package p)
+ : name_(n), latexName_(l), guiName_(g), iconvName_(i), fixedwidth_(f),
+ unsafe_(u), forced_(&forcedselected[n]), package_(p)
{
if (n == "ascii") {
// ASCII can encode 128 code points and nothing else
start_encodable_ = max_ucs4;
complete_ = true;
} else {
+ start_encodable_ = 0;
complete_ = false;
}
}
void Encoding::init() const
{
+ // Since the the constructor is the only method which sets complete_
+ // to false the test for complete_ is thread-safe without mutex.
if (complete_)
return;
- start_encodable_ = 0;
+ static Mutex mutex;
+ Mutex::Locker lock(&mutex);
+
+ // We need to test again for complete_, since another thread could
+ // have set it to true while we were waiting for the lock and we must
+ // not modify an encoding which is already complete.
+ if (complete_)
+ return;
+
+ // We do not make any member mutable so that it can be easily verified
+ // that all const methods are thread-safe: init() is the only const
+ // method which changes complete_, encodable_ and start_encodable_, and
+ // it uses a mutex to ensure thread-safety.
+ CharSet & encodable = const_cast<Encoding *>(this)->encodable_;
+ char_type & start_encodable = const_cast<Encoding *>(this)->start_encodable_;
+
+ start_encodable = 0;
// temporarily switch off lyxerr, since we will generate iconv errors
lyxerr.disable();
if (fixedwidth_) {
continue;
char_type const uc = ucs4[0];
CharInfoMap::const_iterator const it = unicodesymbols.find(uc);
- if (it == unicodesymbols.end() || !it->second.force)
- encodable_.insert(uc);
+ if (it == unicodesymbols.end())
+ encodable.insert(uc);
+ else if (!it->second.force()) {
+ if (forced_->empty() || forced_->find(uc) == forced_->end())
+ encodable.insert(uc);
+ }
}
} else {
// We do not know how many code points this encoding has, and
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);
+ if (it == unicodesymbols.end())
+ encodable.insert(c);
+ else if (!it->second.force()) {
+ if (forced_->empty() || forced_->find(c) == forced_->end())
+ 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_);
+ CharSet::iterator it = encodable.find(start_encodable);
+ while (it != encodable.end()) {
+ encodable.erase(it);
+ ++start_encodable;
+ it = encodable.find(start_encodable);
}
- complete_ = true;
+ const_cast<Encoding *>(this)->complete_ = true;
}
-docstring Encoding::latexChar(char_type c, bool for_mathed) const
+bool Encoding::isForced(char_type c) const
+{
+ if (!forced.empty() && forced.find(c) != forced.end())
+ return true;
+ return !forced_->empty() && forced_->find(c) != forced_->end();
+}
+
+
+bool Encoding::encodable(char_type c) const
{
// assure the used encoding is properly initialized
init();
if (iconvName_ == "UTF-8" && package_ == none)
- return docstring(1, c);
- if (c < start_encodable_ && !encodings.isForced(c))
- return docstring(1, c);
+ return true;
+ if (c < start_encodable_ && !isForced(c))
+ return true;
if (encodable_.find(c) != encodable_.end())
- return docstring(1, c);
- if (for_mathed)
- return docstring();
+ return true;
+ return false;
+}
+
+
+pair<docstring, bool> Encoding::latexChar(char_type c) const
+{
+ if (encodable(c))
+ return make_pair(docstring(1, c), false);
// c cannot (or should not) be encoded in this encoding
CharInfoMap::const_iterator const it = unicodesymbols.find(c);
if (it == unicodesymbols.end())
throw EncodingException(c);
// at least one of mathcommand and textcommand is nonempty
- if (it->second.textcommand.empty())
- return "\\ensuremath{" + it->second.mathcommand + '}';
- return it->second.textcommand;
+ if (it->second.textcommand().empty())
+ return make_pair(
+ "\\ensuremath{" + it->second.mathcommand() + '}', false);
+ return make_pair(it->second.textcommand(), !it->second.textnotermination());
+}
+
+
+pair<docstring, docstring> Encoding::latexString(docstring const & input, bool dryrun) const
+{
+ docstring result;
+ docstring uncodable;
+ bool terminate = false;
+ for (size_t n = 0; n < input.size(); ++n) {
+ try {
+ char_type const c = input[n];
+ pair<docstring, bool> latex_char = latexChar(c);
+ docstring const latex = latex_char.first;
+ if (terminate && !prefixIs(latex, '\\')
+ && !prefixIs(latex, '{')
+ && !prefixIs(latex, '}')) {
+ // Prevent eating of a following
+ // space or command corruption by
+ // following characters
+ if (latex == " ")
+ result += "{}";
+ else
+ result += " ";
+ }
+ result += latex;
+ terminate = latex_char.second;
+ } catch (EncodingException & /* e */) {
+ LYXERR0("Uncodable character in latexString!");
+ if (dryrun) {
+ result += "<" + _("LyX Warning: ")
+ + _("uncodable character") + " '";
+ result += docstring(1, input[n]);
+ result += "'>";
+ } else
+ uncodable += input[n];
+ }
+ }
+ return make_pair(result, uncodable);
}
// assure the used encoding is properly initialized
init();
- // first all encodable characters
- vector<char_type> symbols(encodable_.begin(), encodable_.end());
- // add those below start_encodable_
+ // first all those below start_encodable_
+ vector<char_type> symbols;
for (char_type c = 0; c < start_encodable_; ++c)
symbols.push_back(c);
- // now the ones from the unicodesymbols file
- CharInfoMap::const_iterator const end = unicodesymbols.end();
- CharInfoMap::const_iterator it = unicodesymbols.begin();
- for (; it != end; ++it)
- symbols.push_back(it->first);
+ // add all encodable characters
+ copy(encodable_.begin(), encodable_.end(), back_inserter(symbols));
+ // now the ones from the unicodesymbols file that are not already there
+ for (pair<char_type, CharInfo> const & elem : unicodesymbols) {
+ if (find(symbols.begin(), symbols.end(), elem.first) == symbols.end())
+ symbols.push_back(elem.first);
+ }
+ // finally, sort the vector
+ sort(symbols.begin(), symbols.end());
return symbols;
}
bool Encodings::latexMathChar(char_type c, bool mathmode,
- Encoding const * encoding, docstring & command)
+ Encoding const * encoding, docstring & command,
+ bool & needsTermination)
{
+ command = empty_docstring();
if (encoding)
- command = encoding->latexChar(c, true);
+ if (encoding->encodable(c))
+ command = docstring(1, c);
+ needsTermination = false;
CharInfoMap::const_iterator const it = unicodesymbols.find(c);
if (it == unicodesymbols.end()) {
return false;
}
// at least one of mathcommand and textcommand is nonempty
- bool use_math = (mathmode && !it->second.mathcommand.empty()) ||
- (!mathmode && it->second.textcommand.empty());
+ bool use_math = (mathmode && !it->second.mathcommand().empty()) ||
+ (!mathmode && it->second.textcommand().empty());
if (use_math) {
- command = it->second.mathcommand;
+ command = it->second.mathcommand();
+ needsTermination = !it->second.mathnotermination();
addMathCmd(c);
} else {
if (!encoding || command.empty()) {
- command = it->second.textcommand;
+ command = it->second.textcommand();
+ needsTermination = !it->second.textnotermination();
addTextCmd(c);
}
if (mathmode)
}
-char_type Encodings::fromLaTeXCommand(docstring const & cmd, bool & combining)
+char_type Encodings::fromLaTeXCommand(docstring const & cmd, int cmdtype,
+ bool & combining, bool & needsTermination, set<string> * req)
{
CharInfoMap::const_iterator const end = unicodesymbols.end();
CharInfoMap::const_iterator it = unicodesymbols.begin();
- for (; it != end; ++it) {
- docstring const math = it->second.mathcommand;
- docstring const text = it->second.textcommand;
- if (math == cmd || text == cmd) {
- combining = it->second.combining;
+ for (combining = false; it != end; ++it) {
+ if (it->second.deprecated())
+ continue;
+ docstring const math = it->second.mathcommand();
+ docstring const text = it->second.textcommand();
+ if ((cmdtype & MATH_CMD) && math == cmd) {
+ combining = it->second.combining();
+ needsTermination = !it->second.mathnotermination();
+ if (req && it->second.mathfeature() &&
+ !it->second.mathpreamble().empty())
+ req->insert(it->second.mathpreamble());
+ return it->first;
+ }
+ if ((cmdtype & TEXT_CMD) && text == cmd) {
+ combining = it->second.combining();
+ needsTermination = !it->second.textnotermination();
+ if (req && it->second.textfeature() &&
+ !it->second.textpreamble().empty())
+ req->insert(it->second.textpreamble());
return it->first;
}
}
+ needsTermination = false;
return 0;
}
-docstring Encodings::fromLaTeXCommand(docstring const & cmd, docstring & rem)
+docstring Encodings::fromLaTeXCommand(docstring const & cmd, int cmdtype,
+ bool & needsTermination, docstring & rem, set<string> * req)
{
+ needsTermination = false;
+ rem = empty_docstring();
+ bool const mathmode = cmdtype & MATH_CMD;
+ bool const textmode = cmdtype & TEXT_CMD;
docstring symbols;
- size_t i = 0;
size_t const cmdend = cmd.size();
+ size_t prefix = 0;
CharInfoMap::const_iterator const uniend = unicodesymbols.end();
- for (size_t j = 0; j < cmdend; ++j) {
+ for (size_t i = 0, j = 0; j < cmdend; ++j) {
// Also get the char after a backslash
- if (j + 1 < cmdend && cmd[j] == '\\')
+ if (j + 1 < cmdend && cmd[j] == '\\') {
++j;
+ prefix = 1;
+ // Detect things like \=*{e} as well
+ if (j + 3 < cmdend && cmd[j+1] == '*' &&
+ cmd[j+2] == '{') {
+ ++j;
+ prefix = 2;
+ }
+ }
+ // position of the last character before a possible macro
+ // argument
+ size_t m = j;
// If a macro argument follows, get it, too
+ // Do it here only for single character commands. Other
+ // combining commands need this too, but they are handled in
+ // the loop below for performance reasons.
if (j + 1 < cmdend && cmd[j + 1] == '{') {
size_t k = j + 1;
int count = 1;
- while (k < cmdend && count && k != docstring::npos) {
+ while (k < cmdend && count) {
k = cmd.find_first_of(from_ascii("{}"), k + 1);
+ // braces may not be balanced
+ if (k == docstring::npos)
+ break;
if (cmd[k] == '{')
++count;
else
}
if (k != docstring::npos)
j = k;
+ } else if (m + 1 < cmdend && isAlphaASCII(cmd[m])) {
+ while (m + 2 < cmdend && isAlphaASCII(cmd[m+1]))
+ m++;
}
// Start with this substring and try augmenting it when it is
// the prefix of some command in the unicodesymbols file
- docstring const subcmd = cmd.substr(i, j - i + 1);
+ docstring subcmd = cmd.substr(i, j - i + 1);
CharInfoMap::const_iterator it = unicodesymbols.begin();
+ // First part of subcmd which might be a combining character
+ docstring combcmd = (m == j) ? docstring() : cmd.substr(i, m - i + 1);
+ // The combining character of combcmd if it exists
+ CharInfoMap::const_iterator combining = uniend;
size_t unicmd_size = 0;
char_type c = 0;
for (; it != uniend; ++it) {
- docstring const math = it->second.mathcommand;
- docstring const text = it->second.textcommand;
+ if (it->second.deprecated())
+ continue;
+ docstring const math = mathmode ? it->second.mathcommand()
+ : docstring();
+ docstring const text = textmode ? it->second.textcommand()
+ : docstring();
+ if (!combcmd.empty() && it->second.combining() &&
+ (math == combcmd || text == combcmd))
+ combining = it;
size_t cur_size = max(math.size(), text.size());
// The current math or text unicode command cannot
// match, or we already matched a longer one
tmp.resize(tmp.size() - 1);
// If this is an exact match, we found a (longer)
- // matching command in the unicodesymbols file
- if (math == tmp || text == tmp) {
+ // matching entry in the unicodesymbols file.
+ if (math != tmp && text != tmp)
+ continue;
+ // If we found a combining command, we need to append
+ // the macro argument if this has not been done above.
+ if (tmp == combcmd && combining != uniend &&
+ k < cmdend && cmd[k] == '{') {
+ size_t l = k;
+ int count = 1;
+ while (l < cmdend && count) {
+ l = cmd.find_first_of(from_ascii("{}"), l + 1);
+ // braces may not be balanced
+ if (l == docstring::npos)
+ break;
+ if (cmd[l] == '{')
+ ++count;
+ else
+ --count;
+ }
+ if (l != docstring::npos) {
+ j = l;
+ subcmd = cmd.substr(i, j - i + 1);
+ }
+ }
+ // If the entry doesn't start with '\', we take note
+ // of the match and continue (this is not a ultimate
+ // acceptance, as some other entry may match a longer
+ // portion of the cmd string). However, if the entry
+ // does start with '\', we accept the match only if
+ // this is a valid macro, i.e., either it is a single
+ // (nonletter) char macro, or nothing else follows,
+ // or what follows is a nonletter char, or the last
+ // character is a }.
+ else if (tmp[0] != '\\'
+ || (tmp.size() == prefix + 1 &&
+ !isAlphaASCII(tmp[1]) &&
+ (prefix == 1 || !isAlphaASCII(tmp[2])))
+ || k == cmdend
+ || !isAlphaASCII(cmd[k])
+ || tmp[tmp.size() - 1] == '}'
+ ) {
c = it->first;
j = k - 1;
i = j + 1;
unicmd_size = cur_size;
+ if (math == tmp)
+ needsTermination = !it->second.mathnotermination();
+ else
+ needsTermination = !it->second.textnotermination();
+ if (req) {
+ if (math == tmp && it->second.mathfeature() &&
+ !it->second.mathpreamble().empty())
+ req->insert(it->second.mathpreamble());
+ if (text == tmp && it->second.textfeature() &&
+ !it->second.textpreamble().empty())
+ req->insert(it->second.textpreamble());
+ }
}
}
if (unicmd_size)
symbols += c;
- else if (j + 1 == cmdend)
- // No luck. Return what remains
- rem = cmd.substr(i);
- }
- return symbols;
-}
-
-
-void Encodings::initUnicodeMath(Buffer const & buffer)
-{
- mathcmd.clear();
- textcmd.clear();
- mathsym.clear();
-
- Inset & inset = buffer.inset();
- InsetIterator it = inset_iterator_begin(inset);
- InsetIterator const end = inset_iterator_end(inset);
-
- for (; it != end; ++it)
- it->initUnicodeMath();
-}
-
-
-void Encodings::validate(char_type c, LaTeXFeatures & features, bool for_mathed)
-{
- CharInfoMap::const_iterator const it = unicodesymbols.find(c);
- if (it != unicodesymbols.end()) {
- // In mathed, c could be used both in textmode and mathmode
- bool const use_math = (for_mathed && isMathCmd(c)) ||
- (!for_mathed && it->second.textcommand.empty());
- bool const use_text = (for_mathed && isTextCmd(c)) ||
- (!for_mathed && !it->second.textcommand.empty());
- if (use_math) {
- if (!it->second.mathpreamble.empty()) {
- if (it->second.mathfeature) {
- string feats = it->second.mathpreamble;
- while (!feats.empty()) {
- string feat;
- feats = split(feats, feat, ',');
- features.require(feat);
- }
- } else
- features.addPreambleSnippet(it->second.mathpreamble);
+ else if (combining != uniend &&
+ prefixIs(subcmd, combcmd + '{')) {
+ // We know that subcmd starts with combcmd and
+ // contains an argument in braces.
+ docstring const arg = subcmd.substr(
+ combcmd.length() + 1,
+ subcmd.length() - combcmd.length() - 2);
+ // If arg is a single character we can construct a
+ // combining sequence.
+ char_type a;
+ bool argcomb = false;
+ if (arg.size() == 1 && isAlnumASCII(arg[0]))
+ a = arg[0];
+ else {
+ // Use the version of fromLaTeXCommand() that
+ // parses only one command, since we cannot
+ // use more than one character.
+ bool dummy = false;
+ set<string> r;
+ a = fromLaTeXCommand(arg, cmdtype, argcomb,
+ dummy, &r);
+ if (a && req && !argcomb)
+ req->insert(r.begin(), r.end());
+ }
+ if (a && !argcomb) {
+ // In unicode the combining character comes
+ // after its base
+ symbols += a;
+ symbols += combining->first;
+ i = j + 1;
+ unicmd_size = 2;
}
}
- if (use_text) {
- if (!it->second.textpreamble.empty()) {
- if (it->second.textfeature) {
- string feats = it->second.textpreamble;
- while (!feats.empty()) {
- string feat;
- feats = split(feats, feat, ',');
- features.require(feat);
- }
- } else
- features.addPreambleSnippet(it->second.textpreamble);
+ if (j + 1 == cmdend && !unicmd_size) {
+ // No luck. Return what remains
+ rem = cmd.substr(i);
+ if (needsTermination && !rem.empty()) {
+ if (rem.substr(0, 2) == "{}") {
+ rem = rem.substr(2);
+ needsTermination = false;
+ } else if (rem[0] == ' ') {
+ needsTermination = false;
+ // LaTeX would swallow all spaces
+ rem = ltrim(rem);
+ }
}
}
}
- if (for_mathed && isMathSym(c)) {
- features.require("relsize");
- features.require("lyxmathsym");
- }
-}
-
-
-bool Encodings::isHebrewComposeChar(char_type c)
-{
- return c <= 0x05c2 && c >= 0x05b0 && c != 0x05be && c != 0x05c0;
-}
-
-
-// Special Arabic letters are ones that do not get connected from left
-// they are hamza, alef_madda, alef_hamza, waw_hamza, alef_hamza_under,
-// alef, tah_marbota, dal, thal, rah, zai, wow, alef_maksoura
-
-bool Encodings::isArabicSpecialChar(char_type c)
-{
- return (c >= 0x0621 && c <= 0x0625) || (c >= 0x0630 && c <= 0x0632)
- || c == 0x0627 || c == 0x0629 || c == 0x062f || c == 0x0648
- || c == 0x0649 || c == 0x0698;
-}
-
-
-bool Encodings::isArabicComposeChar(char_type c)
-{
- return c >= 0x064b && c <= 0x0652;
+ return symbols;
}
-bool Encodings::isArabicChar(char_type c)
+CharInfo const & Encodings::unicodeCharInfo(char_type c)
{
- return c >= arabic_start && c <= arabic_end
- && arabic_table[c-arabic_start][0];
+ static CharInfo empty;
+ CharInfoMap::const_iterator const it = unicodesymbols.find(c);
+ return it != unicodesymbols.end() ? it->second : empty;
}
-char_type Encodings::transformChar(char_type c, Encodings::LetterForm form)
+bool Encodings::isCombiningChar(char_type c)
{
- return isArabicChar(c) ? arabic_table[c-arabic_start][form] : c;
+ CharInfoMap::const_iterator const it = unicodesymbols.find(c);
+ if (it != unicodesymbols.end())
+ return it->second.combining();
+ return false;
}
-bool Encodings::isCombiningChar(char_type c)
+string const Encodings::TIPAShortcut(char_type c)
{
CharInfoMap::const_iterator const it = unicodesymbols.find(c);
if (it != unicodesymbols.end())
- return it->second.combining;
- return false;
+ return it->second.tipashortcut();
+ return string();
}
if (it == unicodesymbols.end())
return false;
- if (it->second.textpreamble != "textgreek" && it->second.textpreamble != "textcyr")
+ if (it->second.textpreamble() != "textgreek" && it->second.textpreamble() != "textcyr")
return false;
if (preamble.empty()) {
- preamble = it->second.textpreamble;
+ preamble = it->second.textpreamble();
return true;
}
- return it->second.textpreamble == preamble;
+ return it->second.textpreamble() == preamble;
}
-bool Encodings::isForced(char_type c)
+bool Encodings::isMathAlpha(char_type c)
{
- return (!forced.empty() && forced.find(c) != forced.end());
+ return mathalpha.count(c);
}
-bool Encodings::isMathAlpha(char_type c)
+bool Encodings::isUnicodeTextOnly(char_type c)
{
- return mathalpha.count(c);
+ if (isASCII(c) || isMathAlpha(c))
+ return false;
+
+ CharInfoMap::const_iterator const it = unicodesymbols.find(c);
+ return it == unicodesymbols.end() || it->second.mathcommand().empty();
}
-Encoding const * Encodings::fromLyXName(string const & name) const
+Encoding const *
+Encodings::fromLyXName(string const & name, bool allowUnsafe) const
{
EncodingList::const_iterator const it = encodinglist.find(name);
- return it != encodinglist.end() ? &it->second : 0;
+ if (it == encodinglist.end())
+ return 0;
+ if (!allowUnsafe && it->second.unsafe())
+ return 0;
+ return &it->second;
}
-Encoding const * Encodings::fromLaTeXName(string const & name) const
+Encoding const *
+Encodings::fromLaTeXName(string const & n, int const & p, bool allowUnsafe) const
{
+ string name = n;
+ // FIXME: if we have to test for too many of these synonyms,
+ // we should instead extend the format of lib/encodings
+ if (n == "ansinew")
+ name = "cp1252";
+
// 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.
// most at the top of lib/encodings.
EncodingList::const_iterator const end = encodinglist.end();
for (EncodingList::const_iterator it = encodinglist.begin(); it != end; ++it)
- if (it->second.latexName() == name)
+ if ((it->second.latexName() == name) && (it->second.package() & p)
+ && (!it->second.unsafe() || allowUnsafe))
return &it->second;
return 0;
}
-Encodings::Encodings()
+Encoding const *
+Encodings::fromIconvName(string const & n, int const & p, bool allowUnsafe) const
{
+ EncodingList::const_iterator const end = encodinglist.end();
+ for (EncodingList::const_iterator it = encodinglist.begin(); it != end; ++it)
+ if ((it->second.iconvName() == n) && (it->second.package() & p)
+ && (!it->second.unsafe() || allowUnsafe))
+ return &it->second;
+ return 0;
}
+Encodings::Encodings()
+{}
+
+
void Encodings::read(FileName const & encfile, FileName const & symbolsfile)
{
// We must read the symbolsfile first, because the Encoding
// constructor depends on it.
+ CharSetMap forcednotselected;
Lexer symbolslex;
symbolslex.setFile(symbolsfile);
bool getNextToken = true;
while (symbolslex.isOK()) {
char_type symbol;
- CharInfo info;
- string flags;
if (getNextToken) {
if (!symbolslex.next(true))
if (!symbolslex.next(true))
break;
- info.textcommand = symbolslex.getDocString();
+ docstring textcommand = symbolslex.getDocString();
if (!symbolslex.next(true))
break;
- info.textpreamble = symbolslex.getString();
+ string textpreamble = symbolslex.getString();
if (!symbolslex.next(true))
break;
- flags = symbolslex.getString();
+ string sflags = symbolslex.getString();
+
+ string tipashortcut;
+ int flags = 0;
- info.combining = false;
- info.textfeature = false;
- info.force = false;
- while (!flags.empty()) {
+ if (suffixIs(textcommand, '}'))
+ flags |= CharInfoTextNoTermination;
+ while (!sflags.empty()) {
string flag;
- flags = split(flags, flag, ',');
+ sflags = split(sflags, flag, ',');
if (flag == "combining") {
- info.combining = true;
+ flags |= CharInfoCombining;
} else if (flag == "force") {
- info.force = true;
+ flags |= CharInfoForce;
forced.insert(symbol);
+ } else if (prefixIs(flag, "force=")) {
+ vector<string> encodings =
+ getVectorFromString(flag.substr(6), ";");
+ for (size_t i = 0; i < encodings.size(); ++i)
+ forcedselected[encodings[i]].insert(symbol);
+ flags |= CharInfoForceSelected;
+ } else if (prefixIs(flag, "force!=")) {
+ vector<string> encodings =
+ getVectorFromString(flag.substr(7), ";");
+ for (size_t i = 0; i < encodings.size(); ++i)
+ forcednotselected[encodings[i]].insert(symbol);
+ flags |= CharInfoForceSelected;
} else if (flag == "mathalpha") {
mathalpha.insert(symbol);
+ } else if (flag == "notermination=text") {
+ flags |= CharInfoTextNoTermination;
+ } else if (flag == "notermination=math") {
+ flags |= CharInfoMathNoTermination;
+ } else if (flag == "notermination=both") {
+ flags |= CharInfoTextNoTermination;
+ flags |= CharInfoMathNoTermination;
+ } else if (flag == "notermination=none") {
+ flags &= ~CharInfoTextNoTermination;
+ flags &= ~CharInfoMathNoTermination;
+ } else if (contains(flag, "tipashortcut=")) {
+ tipashortcut = split(flag, '=');
+ } else if (flag == "deprecated") {
+ flags |= CharInfoDeprecated;
} else {
lyxerr << "Ignoring unknown flag `" << flag
<< "' for symbol `0x"
// make them optional so that old files still work.
int const lineno = symbolslex.lineNumber();
bool breakout = false;
+ docstring mathcommand;
+ string mathpreamble;
if (symbolslex.next(true)) {
if (symbolslex.lineNumber() != lineno) {
// line in old format without mathcommand and mathpreamble
getNextToken = false;
} else {
- info.mathcommand = symbolslex.getDocString();
+ mathcommand = symbolslex.getDocString();
+ if (suffixIs(mathcommand, '}'))
+ flags |= CharInfoMathNoTermination;
if (symbolslex.next(true)) {
if (symbolslex.lineNumber() != lineno) {
// line in new format with mathcommand only
getNextToken = false;
} else {
// line in new format with mathcommand and mathpreamble
- info.mathpreamble = symbolslex.getString();
+ mathpreamble = symbolslex.getString();
}
} else
breakout = true;
breakout = true;
}
- if (!info.textpreamble.empty())
- info.textfeature = info.textpreamble[0] != '\\';
- if (!info.mathpreamble.empty())
- info.mathfeature = info.mathpreamble[0] != '\\';
-
+ // backward compatibility
+ if (mathpreamble == "esintoramsmath")
+ mathpreamble = "esint|amsmath";
+
+ if (!textpreamble.empty())
+ if (textpreamble[0] != '\\')
+ flags |= CharInfoTextFeature;
+ if (!mathpreamble.empty())
+ if (mathpreamble[0] != '\\')
+ flags |= CharInfoMathFeature;
+
+ CharInfo info = CharInfo(
+ textcommand, mathcommand,
+ textpreamble, mathpreamble,
+ tipashortcut, flags);
LYXERR(Debug::INFO, "Read unicode symbol " << symbol << " '"
- << to_utf8(info.textcommand) << "' '" << info.textpreamble
- << "' " << info.combining << ' ' << info.textfeature
- << " '" << to_utf8(info.mathcommand) << "' '"
- << info.mathpreamble << "' " << info.mathfeature);
+ << to_utf8(info.textcommand()) << "' '" << info.textpreamble()
+ << " '" << info.textfeature() << ' ' << info.textnotermination()
+ << ' ' << to_utf8(info.mathcommand()) << "' '" << info.mathpreamble()
+ << "' " << info.mathfeature() << ' ' << info.mathnotermination()
+ << ' ' << info.combining() << ' ' << info.force()
+ << ' ' << info.forceselected());
// we assume that at least one command is nonempty when using unicodesymbols
- if (!info.textcommand.empty() || !info.mathcommand.empty())
+ if (info.isUnicodeSymbol()) {
unicodesymbols[symbol] = info;
+ }
if (breakout)
break;
// Now read the encodings
enum {
et_encoding = 1,
- et_end,
+ et_end
};
LexerKeyword encodingtags[] = {
lex.next();
string const width = lex.getString();
bool fixedwidth = false;
+ bool unsafe = false;
if (width == "fixed")
fixedwidth = true;
else if (width == "variable")
fixedwidth = false;
+ else if (width == "variableunsafe") {
+ fixedwidth = false;
+ unsafe = true;
+ }
else
lex.printError("Unknown width");
LYXERR(Debug::INFO, "Reading encoding " << name);
encodinglist[name] = Encoding(name, latexname,
- guiname, iconvname, fixedwidth, package);
+ guiname, iconvname, fixedwidth, unsafe,
+ package);
if (lex.lex() != et_end)
lex.printError("Missing end");
break;
}
}
+
+ // Move all information from forcednotselected to forcedselected
+ for (CharSetMap::const_iterator it1 = forcednotselected.begin(); it1 != forcednotselected.end(); ++it1) {
+ for (CharSetMap::iterator it2 = forcedselected.begin(); it2 != forcedselected.end(); ++it2) {
+ if (it2->first != it1->first)
+ it2->second.insert(it1->second.begin(), it1->second.end());
+ }
+ }
+
}
projects / lyx.git / blobdiff