* 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 "debug.h"
-#include "LaTeXFeatures.h"
#include "Lexer.h"
-#include "LyXRC.h"
-#include "support/FileName.h"
+#include "support/debug.h"
+#include "support/gettext.h"
#include "support/lstrings.h"
+#include "support/textutils.h"
#include "support/unicode.h"
-#include <sstream>
+#include <boost/cstdint.hpp>
-#ifndef CXX_GLOBAL_CSTD
-using std::strtol;
-#endif
-using std::endl;
-using std::string;
+#include <sstream>
+using namespace std;
+using namespace lyx::support;
namespace lyx {
-using support::FileName;
+int const Encoding::any = -1;
Encodings encodings;
+Encodings::MathCommandSet Encodings::mathcmd;
+Encodings::TextCommandSet Encodings::textcmd;
+Encodings::MathSymbolSet Encodings::mathsym;
+
namespace {
char_type arabic_table[172][4] = {
{0, 0, 0, 0}, // 0x067b
{0, 0, 0, 0}, // 0x067c
{0, 0, 0, 0}, // 0x067d
- {0xfb56, 0xfb57, 0xfb58, 0xfb59}, // 0x067e = peh
+ {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}, // 0x0683
{0, 0, 0, 0}, // 0x0684
{0, 0, 0, 0}, // 0x0685
- {0xfb7a, 0xfb7b, 0xfb7c, 0xfb7d}, // 0x0686 = tcheh
+ {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}, // 0x06a6
{0, 0, 0, 0}, // 0x06a7
{0, 0, 0, 0}, // 0x06a8
- {0xfb8e, 0xfb8f, 0xfb90, 0xfb91}, // 0x06a9 = farsi kaf
+ {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
+ {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}, // 0x06c9
{0, 0, 0, 0}, // 0x06ca
{0, 0, 0, 0}, // 0x06cb
- {0xfbfc, 0xfbfd, 0xfbfe, 0xfbff} // 0x06cc = farsi yeh
+ {0xfbfc, 0xfbfd, 0xfbfe, 0xfbff} // 0x06cc = farsi yeh
};
char_type const arabic_end = 0x06cc;
-/// Information about a single UCS4 character
-struct CharInfo {
- /// LaTeX command for this character
- docstring command;
- /// Needed LaTeX preamble (or feature)
- string preamble;
- /// Is this a combining character?
- bool combining;
- /// Is \c preamble a feature known by LaTeXFeatures, or a raw LaTeX
- /// command?
- bool feature;
- /// Always force the LaTeX command, even if the encoding contains
- /// this character?
- bool force;
-};
+typedef map<char_type, CharInfo> CharInfoMap;
+CharInfoMap unicodesymbols;
+typedef set<char_type> CharSet;
+typedef map<string, CharSet> CharSetMap;
+CharSet forced;
+CharSetMap forcedselected;
-typedef std::map<char_type, CharInfo> CharInfoMap;
-CharInfoMap unicodesymbols;
+typedef set<char_type> MathAlphaSet;
+MathAlphaSet mathalpha;
/// The highest code point in UCS4 encoding (1<<20 + 1<<16)
} // namespace anon
-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)
+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";
+}
+
+
+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, 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
{
+ if (complete_)
+ return;
+
start_encodable_ = 0;
// temporarily switch off lyxerr, since we will generate iconv errors
lyxerr.disable();
// 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, iconvName_);
- if (ucs4.size() == 1) {
- char_type const c = ucs4[0];
- CharInfoMap::const_iterator const it = unicodesymbols.find(c);
- if (it == unicodesymbols.end() || !it->second.force)
- encodable_.insert(c);
+ char const c = char(j);
+ vector<char_type> const ucs4 = eightbit_to_ucs4(&c, 1, iconvName_);
+ if (ucs4.size() != 1)
+ continue;
+ char_type const uc = ucs4[0];
+ CharInfoMap::const_iterator const it = unicodesymbols.find(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 {
// therefore we need to check all UCS4 code points.
// This is expensive!
for (char_type c = 0; c < max_ucs4; ++c) {
- std::vector<char> const eightbit = ucs4_to_eightbit(&c, 1, iconvName_);
+ 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)
+ if (it == unicodesymbols.end())
encodable_.insert(c);
+ else if (!it->second.force()) {
+ if (forced_->empty() || forced_->find(c) == forced_->end())
+ encodable_.insert(c);
+ }
}
}
}
}
-docstring const Encoding::latexChar(char_type c) 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
- 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;
- else
- return it->second.command;
+ init();
+
+ if (iconvName_ == "UTF-8" && package_ == none)
+ return true;
+ if (c < start_encodable_ && !isForced(c))
+ return true;
+ if (encodable_.find(c) != encodable_.end())
+ 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 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 docstring(1, c);
+ return make_pair(result, uncodable);
+}
+
+
+vector<char_type> Encoding::symbolsList() const
+{
+ // 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_
+ 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);
+ return symbols;
}
-void Encodings::validate(char_type c, LaTeXFeatures & features)
+bool Encodings::latexMathChar(char_type c, bool mathmode,
+ Encoding const * encoding, docstring & command,
+ bool & needsTermination)
{
+ command = empty_docstring();
+ if (encoding)
+ if (encoding->encodable(c))
+ command = docstring(1, c);
+ needsTermination = false;
+
CharInfoMap::const_iterator const it = unicodesymbols.find(c);
- if (it != unicodesymbols.end() && !it->second.preamble.empty()) {
- if (it->second.feature)
- features.require(it->second.preamble);
- else
- features.addPreambleSnippet(it->second.preamble);
+ if (it == unicodesymbols.end()) {
+ if (!encoding || command.empty())
+ throw EncodingException(c);
+ if (mathmode)
+ addMathSym(c);
+ return false;
+ }
+ // at least one of mathcommand and textcommand is nonempty
+ bool use_math = (mathmode && !it->second.mathcommand().empty()) ||
+ (!mathmode && it->second.textcommand().empty());
+ if (use_math) {
+ command = it->second.mathcommand();
+ needsTermination = !it->second.mathnotermination();
+ addMathCmd(c);
+ } else {
+ if (!encoding || command.empty()) {
+ command = it->second.textcommand();
+ needsTermination = !it->second.textnotermination();
+ addTextCmd(c);
+ }
+ if (mathmode)
+ addMathSym(c);
}
+ return use_math;
}
-bool Encodings::isComposeChar_hebrew(char_type c)
+char_type Encodings::fromLaTeXCommand(docstring const & cmd, int cmdtype,
+ bool & combining, bool & needsTermination, set<string> * req)
{
- return c <= 0x05c2 && c >= 0x05b0 &&
- c != 0x05be && c != 0x05c0;
+ CharInfoMap::const_iterator const end = unicodesymbols.end();
+ CharInfoMap::const_iterator it = unicodesymbols.begin();
+ for (combining = false; it != end; ++it) {
+ 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, 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 const cmdend = cmd.size();
+ size_t prefix = 0;
+ CharInfoMap::const_iterator const uniend = unicodesymbols.end();
+ for (size_t i = 0, j = 0; j < cmdend; ++j) {
+ // Also get the char after a backslash
+ 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) {
+ k = cmd.find_first_of(from_ascii("{}"), k + 1);
+ if (cmd[k] == '{')
+ ++count;
+ else
+ --count;
+ }
+ 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 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 = 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
+ if (cur_size < subcmd.size() || cur_size <= unicmd_size)
+ continue;
+
+ docstring tmp = subcmd;
+ size_t k = j;
+ while (prefixIs(math, tmp) || prefixIs(text, tmp)) {
+ ++k;
+ if (k >= cmdend || cur_size <= tmp.size())
+ break;
+ tmp += cmd[k];
+ }
+ // No match
+ if (k == j)
+ continue;
+
+ // The last added char caused a mismatch, because
+ // we didn't exhaust the chars in cmd and didn't
+ // exceed the maximum size of the current unicmd
+ if (k < cmdend && cur_size > tmp.size())
+ tmp.resize(tmp.size() - 1);
+
+ // If this is an exact match, we found a (longer)
+ // 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 != docstring::npos) {
+ l = cmd.find_first_of(from_ascii("{}"), l + 1);
+ 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 (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 (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);
+ }
+ }
+ }
+ }
+ return symbols;
+}
+
+
+bool Encodings::isHebrewComposeChar(char_type c)
+{
+ return c <= 0x05c2 && c >= 0x05b0 && c != 0x05be && c != 0x05c0;
}
// they are hamza, alef_madda, alef_hamza, waw_hamza, alef_hamza_under,
// alef, tah_marbota, dal, thal, rah, zai, wow, alef_maksoura
-bool Encodings::is_arabic_special(char_type c)
+bool Encodings::isArabicSpecialChar(char_type c)
{
- return (c >= 0x0621 && c <= 0x0625) ||
- c == 0x0627 || c == 0x0629 ||
- c == 0x062f || c == 0x0648 ||
- (c >= 0x0630 && c <= 0x0632) ||
- c == 0x0649 || c == 0x0698;
+ return (c >= 0x0621 && c <= 0x0625) || (c >= 0x0630 && c <= 0x0632)
+ || c == 0x0627 || c == 0x0629 || c == 0x062f || c == 0x0648
+ || c == 0x0649 || c == 0x0698;
}
-bool Encodings::isComposeChar_arabic(char_type c)
+bool Encodings::isArabicComposeChar(char_type c)
{
return c >= 0x064b && c <= 0x0652;
}
-bool Encodings::is_arabic(char_type c)
+bool Encodings::isArabicChar(char_type c)
{
- return c >= arabic_start && c <= arabic_end &&
- arabic_table[c-arabic_start][0];
+ return c >= arabic_start && c <= arabic_end
+ && arabic_table[c-arabic_start][0];
}
-char_type Encodings::transformChar(char_type c,
- Encodings::Letter_Form form)
+CharInfo const & Encodings::unicodeCharInfo(char_type c)
{
- if (!is_arabic(c))
- return c;
+ static CharInfo empty;
+ CharInfoMap::const_iterator const it = unicodesymbols.find(c);
+ return it != unicodesymbols.end() ? it->second : empty;
+}
+
- return arabic_table[c-arabic_start][form];
+char_type Encodings::transformChar(char_type c, Encodings::LetterForm form)
+{
+ 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 it->second.combining();
return false;
}
-bool Encodings::isKnownLangChar(char_type c, string & preamble)
+string const Encodings::TIPAShortcut(char_type c)
{
CharInfoMap::const_iterator const it = unicodesymbols.find(c);
- if (it != unicodesymbols.end()) {
- 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;
+ if (it != unicodesymbols.end())
+ return it->second.tipashortcut();
+ return string();
+}
+
+
+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.textpreamble() != "textgreek" && it->second.textpreamble() != "textcyr")
+ return false;
+
+ if (preamble.empty()) {
+ preamble = it->second.textpreamble();
+ return true;
}
- return false;
+ return it->second.textpreamble() == preamble;
}
-Encoding const * Encodings::getFromLyXName(string const & name) const
+bool Encodings::isMathAlpha(char_type c)
{
- EncodingList::const_iterator it = encodinglist.find(name);
- if (it != encodinglist.end())
- return &it->second;
- else
+ return mathalpha.count(c);
+}
+
+
+Encoding const *
+Encodings::fromLyXName(string const & name, bool allowUnsafe) const
+{
+ EncodingList::const_iterator const it = encodinglist.find(name);
+ if (!allowUnsafe && it->second.unsafe())
return 0;
+ return it != encodinglist.end() ? &it->second : 0;
}
-Encoding const * Encodings::getFromLaTeXName(string const & name) const
+Encoding const *
+Encodings::fromLaTeXName(string const & n, int const & p, bool allowUnsafe) const
{
- // We don't use std::find_if because it makes copies of the pairs in
+ 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.
// Users could even optimize it by putting the encodings they use
// 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.
- Lexer symbolslex(0, 0);
+ CharSetMap forcednotselected;
+ Lexer symbolslex;
symbolslex.setFile(symbolsfile);
+ bool getNextToken = true;
while (symbolslex.isOK()) {
char_type symbol;
- CharInfo info;
- string flags;
- if (symbolslex.next(true)) {
- std::istringstream is(symbolslex.getString());
- // reading symbol directly does not work if
- // char_type == std::wchar_t.
- boost::uint32_t tmp;
- if(!(is >> std::hex >> tmp))
+ if (getNextToken) {
+ if (!symbolslex.next(true))
break;
- symbol = tmp;
} else
+ getNextToken = true;
+
+ istringstream is(symbolslex.getString());
+ // reading symbol directly does not work if
+ // char_type == wchar_t.
+ boost::uint32_t tmp;
+ if(!(is >> hex >> tmp))
break;
- if (symbolslex.next(true))
- info.command = symbolslex.getDocString();
- else
+ symbol = tmp;
+
+ if (!symbolslex.next(true))
break;
- if (symbolslex.next(true))
- info.preamble = symbolslex.getString();
- else
+ docstring textcommand = symbolslex.getDocString();
+ if (!symbolslex.next(true))
break;
- if (symbolslex.next(true))
- flags = symbolslex.getString();
- else
+ string textpreamble = symbolslex.getString();
+ if (!symbolslex.next(true))
break;
-
- info.combining = false;
- info.feature = false;
- info.force = false;
- while (!flags.empty()) {
+ string sflags = symbolslex.getString();
+
+ string tipashortcut;
+ int flags = 0;
+
+ if (suffixIs(textcommand, '}'))
+ flags |= CharInfoTextNoTermination;
+ while (!sflags.empty()) {
string flag;
- flags = support::split(flags, flag, ',');
- if (flag == "combining")
- info.combining = true;
- else if (flag == "force")
- info.force = true;
- else
+ sflags = split(sflags, flag, ',');
+ if (flag == "combining") {
+ flags |= CharInfoCombining;
+ } else if (flag == "force") {
+ 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 {
lyxerr << "Ignoring unknown flag `" << flag
<< "' for symbol `0x"
- << std::hex << symbol << std::dec
+ << hex << symbol << dec
<< "'." << endl;
+ }
+ }
+ // mathcommand and mathpreamble have been added for 1.6.0.
+ // 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 {
+ 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
+ mathpreamble = symbolslex.getString();
+ }
+ } else
+ breakout = true;
+ }
+ } else {
+ breakout = true;
}
- if (!info.preamble.empty())
- info.feature = info.preamble[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.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.isUnicodeSymbol()) {
+ unicodesymbols[symbol] = info;
+ }
- LYXERR(Debug::INFO)
- << "Read unicode symbol " << symbol << " '"
- << to_utf8(info.command) << "' '" << info.preamble
- << "' " << info.combining << ' ' << info.feature
- << endl;
- unicodesymbols[symbol] = info;
+ if (breakout)
+ break;
}
// Now read the encodings
- enum Encodingtags {
+ enum {
et_encoding = 1,
- et_end,
- et_last
+ et_end
};
- struct keyword_item encodingtags[et_last - 1] = {
+ LexerKeyword encodingtags[] = {
{ "encoding", et_encoding },
{ "end", et_end }
};
- Lexer lex(encodingtags, et_last - 1);
+ Lexer lex(encodingtags);
lex.setFile(encfile);
+ lex.setContext("Encodings::read");
while (lex.isOK()) {
switch (lex.lex()) {
case et_encoding:
lex.next();
string const latexname = lex.getString();
lex.next();
+ string const guiname = lex.getString();
+ lex.next();
string const iconvname = lex.getString();
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 {
- lex.printError("Encodings::read: "
- "Unknown width: `$$Token'");
- }
-
+ else if (width == "variableunsafe") {
+ fixedwidth = false;
+ unsafe = true;
+ }
+ else
+ lex.printError("Unknown width");
+
lex.next();
string const p = lex.getString();
Encoding::Package package = Encoding::none;
if (p == "none")
- package = Encoding::none;
+ package = Encoding::none;
else if (p == "inputenc")
package = Encoding::inputenc;
else if (p == "CJK")
package = Encoding::CJK;
- else {
- lex.printError("Encodings::read: "
- "Unknown package: `$$Token'");
- }
-
- LYXERR(Debug::INFO) << "Reading encoding " << name << endl;
+ else if (p == "japanese")
+ package = Encoding::japanese;
+ else
+ lex.printError("Unknown package");
+
+ LYXERR(Debug::INFO, "Reading encoding " << name);
encodinglist[name] = Encoding(name, latexname,
- iconvname, fixedwidth,
- package);
+ guiname, iconvname, fixedwidth, unsafe,
+ package);
+
if (lex.lex() != et_end)
- lex.printError("Encodings::read: "
- "missing end");
+ lex.printError("Missing end");
break;
}
case et_end:
- lex.printError("Encodings::read: Misplaced end");
+ lex.printError("Misplaced end");
break;
case Lexer::LEX_FEOF:
break;
default:
- lex.printError("Encodings::read: "
- "Unknown tag: `$$Token'");
+ lex.printError("Unknown tag");
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());
+ }
+ }
+
}