X-Git-Url: https://git.lyx.org/gitweb/?a=blobdiff_plain;f=src%2Fmathed%2Fmath_extern.C;h=8f26fd7c5e5e3d66da7cd2fe0b33cdf398dcfb9f;hb=cd03e2b7db8379a91f3d31eac2c5bc25b159c541;hp=da2e448a4b0520df92c17f2a9681cd93c15eef83;hpb=b54bf51387237b8fd8e9c6064143cff4239c2eec;p=lyx.git diff --git a/src/mathed/math_extern.C b/src/mathed/math_extern.C index da2e448a4b..8f26fd7c5e 100644 --- a/src/mathed/math_extern.C +++ b/src/mathed/math_extern.C @@ -1,13 +1,24 @@ +/** + * \file math_extern.C + * This file is part of LyX, the document processor. + * Licence details can be found in the file COPYING. + * + * \author André Pönitz + * + * Full author contact details are available in file CREDITS. + */ + // This file contains most of the magic that extracts "context // information" from the unstructered layout-oriented stuff in an // MathArray. #include -#include "math_amsarrayinset.h" +#include "math_extern.h" #include "math_arrayinset.h" #include "math_charinset.h" #include "math_deliminset.h" +#include "math_data.h" #include "math_diffinset.h" #include "math_exfuncinset.h" #include "math_exintinset.h" @@ -19,20 +30,26 @@ #include "math_scriptinset.h" #include "math_stringinset.h" #include "math_symbolinset.h" -#include "math_unknowninset.h" #include "math_parser.h" -#include "Lsstream.h" +#include "support/std_sstream.h" #include "debug.h" -#include "support/lyxlib.h" -#include "support/systemcall.h" #include "support/filetools.h" +#include "support/lstrings.h" #include -using std::ostream; -using std::istringstream; -using std::find_if; +using lyx::support::cmd_ret; +using lyx::support::getVectorFromString; +using lyx::support::LibFileSearch; +using lyx::support::RunCommand; +using lyx::support::subst; + using std::endl; +using std::find_if; + +using std::istringstream; +using std::ostream; +using std::ostringstream; ostream & operator<<(ostream & os, MathArray const & ar) @@ -47,7 +64,7 @@ ostream & operator<<(ostream & os, MathArray const & ar) typedef bool TestItemFunc(MathAtom const &); // define a function for replacing subexpressions -typedef MathInset * ReplaceArgumentFunc(const MathArray & ar); +typedef MathAtom ReplaceArgumentFunc(const MathArray & ar); @@ -127,7 +144,7 @@ string charSequence void extractStrings(MathArray & ar) { - //lyxerr << "\nStrings from: " << ar << "\n"; + //lyxerr << "\nStrings from: " << ar << endl; for (MathArray::size_type i = 0; i < ar.size(); ++i) { if (!ar[i]->asCharInset()) continue; @@ -135,38 +152,30 @@ void extractStrings(MathArray & ar) ar[i] = MathAtom(new MathStringInset(s)); ar.erase(i + 1, i + s.size()); } - //lyxerr << "\nStrings to: " << ar << "\n"; -} - - -MathInset const * singleItem(MathArray const & ar) -{ - return ar.size() == 1 ? ar.begin()->nucleus() : 0; + //lyxerr << "\nStrings to: " << ar << endl; } void extractMatrices(MathArray & ar) { - //lyxerr << "\nMatrices from: " << ar << "\n"; + //lyxerr << "\nMatrices from: " << ar << endl; // first pass for explicitly delimited stuff - for (MathArray::iterator it = ar.begin(); it != ar.end(); ++it) { - MathDelimInset const * del = (*it)->asDelimInset(); - if (!del) + for (MathArray::size_type i = 0; i < ar.size(); ++i) { + if (!ar[i]->asDelimInset()) + continue; + MathArray const & arr = ar[i]->asDelimInset()->cell(0); + if (arr.size() != 1) continue; - MathInset const * arr = singleItem(del->cell(0)); - if (!arr || !arr->asGridInset()) + if (!arr.front()->asGridInset()) continue; - *it = MathAtom(new MathMatrixInset(*(arr->asGridInset()))); + ar[i] = MathAtom(new MathMatrixInset(*(arr.front()->asGridInset()))); } // second pass for AMS "pmatrix" etc - for (MathArray::iterator it = ar.begin(); it != ar.end(); ++it) { - MathAMSArrayInset const * ams = (*it)->asAMSArrayInset(); - if (!ams) - continue; - *it = MathAtom(new MathMatrixInset(*ams)); - } - //lyxerr << "\nMatrices to: " << ar << "\n"; + for (MathArray::size_type i = 0; i < ar.size(); ++i) + if (ar[i]->asAMSArrayInset()) + ar[i] = MathAtom(new MathMatrixInset(*(ar[i]->asGridInset()))); + //lyxerr << "\nMatrices to: " << ar << endl; } @@ -202,7 +211,7 @@ bool extractNumber(MathArray const & ar, double & d) } -bool testString(MathAtom const & at, const string & str) +bool testString(MathAtom const & at, string const & str) { string s; return extractString(at, s) && str == s; @@ -241,21 +250,18 @@ void replaceNested( // to modify the array. for (MathArray::size_type i = 0; i < ar.size(); ++i) { // check whether this is the begin of the sequence - MathArray::iterator it = ar.begin() + i; - if (!testOpen(*it)) + if (!testOpen(ar[i])) continue; // search end of sequence + MathArray::iterator it = ar.begin() + i; MathArray::iterator jt = endNestSearch(it, ar.end(), testOpen, testClose); if (jt == ar.end()) continue; - // create a proper inset as replacement - MathInset * p = replaceArg(MathArray(it + 1, jt)); - // replace the original stuff by the new inset + ar[i] = replaceArg(MathArray(it + 1, jt)); ar.erase(it + 1, jt + 1); - *it = MathAtom(p); } } @@ -268,22 +274,21 @@ void replaceNested( void splitScripts(MathArray & ar) { - //lyxerr << "\nScripts from: " << ar << "\n"; + //lyxerr << "\nScripts from: " << ar << endl; for (MathArray::size_type i = 0; i < ar.size(); ++i) { - MathArray::iterator it = ar.begin() + i; - // is this script inset? - MathScriptInset * p = (*it).nucleus()->asScriptInset(); - if (!p) + if (!ar[i]->asScriptInset()) continue; // no problem if we don't have both... - if (!p->hasUp() || !p->hasDown()) + if (!ar[i]->asScriptInset()->hasUp()) + continue; + if (!ar[i]->asScriptInset()->hasDown()) continue; // create extra script inset and move superscript over - MathScriptInset * q = new MathScriptInset; - q->ensure(true); + MathScriptInset * p = ar[i].nucleus()->asScriptInset(); + MathScriptInset * q = new MathScriptInset(true); std::swap(q->up(), p->up()); p->removeScript(true); @@ -291,7 +296,7 @@ void splitScripts(MathArray & ar) ++i; ar.insert(i, MathAtom(q)); } - //lyxerr << "\nScripts to: " << ar << "\n"; + //lyxerr << "\nScripts to: " << ar << endl; } @@ -301,26 +306,22 @@ void splitScripts(MathArray & ar) void extractExps(MathArray & ar) { - //lyxerr << "\nExps from: " << ar << "\n"; - + //lyxerr << "\nExps from: " << ar << endl; for (MathArray::size_type i = 0; i + 1 < ar.size(); ++i) { - MathArray::iterator it = ar.begin() + i; - // is this 'e'? - MathCharInset const * p = (*it)->asCharInset(); - if (!p || p->getChar() != 'e') + if (ar[i]->getChar() != 'e') continue; // we need an exponent but no subscript - MathScriptInset const * sup = (*(it + 1))->asScriptInset(); + MathScriptInset const * sup = ar[i + 1]->asScriptInset(); if (!sup || sup->hasDown()) continue; - // create a proper exp-inset as replacement - *it = MathAtom(new MathExFuncInset("exp", sup->cell(1))); - ar.erase(it + 1); + // create a proper exp-inset as replacement + ar[i] = MathAtom(new MathExFuncInset("exp", sup->cell(1))); + ar.erase(i + 1); } - //lyxerr << "\nExps to: " << ar << "\n"; + //lyxerr << "\nExps to: " << ar << endl; } @@ -329,7 +330,7 @@ void extractExps(MathArray & ar) // void extractDets(MathArray & ar) { - //lyxerr << "\ndet from: " << ar << "\n"; + //lyxerr << "\ndet from: " << ar << endl; for (MathArray::iterator it = ar.begin(); it != ar.end(); ++it) { MathDelimInset const * del = (*it)->asDelimInset(); if (!del) @@ -338,7 +339,7 @@ void extractDets(MathArray & ar) continue; *it = MathAtom(new MathExFuncInset("det", del->cell(0))); } - //lyxerr << "\ndet to: " << ar << "\n"; + //lyxerr << "\ndet to: " << ar << endl; } @@ -368,7 +369,7 @@ string digitSequence void extractNumbers(MathArray & ar) { - //lyxerr << "\nNumbers from: " << ar << "\n"; + //lyxerr << "\nNumbers from: " << ar << endl; for (MathArray::size_type i = 0; i < ar.size(); ++i) { if (!ar[i]->asCharInset()) continue; @@ -380,7 +381,7 @@ void extractNumbers(MathArray & ar) ar[i] = MathAtom(new MathNumberInset(s)); ar.erase(i + 1, i + s.size()); } - //lyxerr << "\nNumbers to: " << ar << "\n"; + //lyxerr << "\nNumbers to: " << ar << endl; } @@ -401,18 +402,18 @@ bool testCloseParan(MathAtom const & at) } -MathInset * replaceDelims(const MathArray & ar) +MathAtom replaceDelims(const MathArray & ar) { - return new MathDelimInset("(", ")", ar); + return MathAtom(new MathDelimInset("(", ")", ar)); } // replace '('...')' sequences by a real MathDelimInset void extractDelims(MathArray & ar) { - //lyxerr << "\nDelims from: " << ar << "\n"; + //lyxerr << "\nDelims from: " << ar << endl; replaceNested(ar, testOpenParan, testCloseParan, replaceDelims); - //lyxerr << "\nDelims to: " << ar << "\n"; + //lyxerr << "\nDelims to: " << ar << endl; } @@ -430,7 +431,7 @@ void extractFunctions(MathArray & ar) if (ar.size() < 2) return; - //lyxerr << "\nFunctions from: " << ar << "\n"; + //lyxerr << "\nFunctions from: " << ar << endl; for (MathArray::size_type i = 0; i + 1 < ar.size(); ++i) { MathArray::iterator it = ar.begin() + i; MathArray::iterator jt = it + 1; @@ -475,7 +476,7 @@ void extractFunctions(MathArray & ar) // re-insert exponent ar.insert(i + 1, exp); - //lyxerr << "\nFunctions to: " << ar << "\n"; + //lyxerr << "\nFunctions to: " << ar << endl; } } @@ -500,7 +501,7 @@ bool testIntegral(MathAtom const & at) { return testIntSymbol(at) || - ( at->asScriptInset() + ( at->asScriptInset() && at->asScriptInset()->nuc().size() && testIntSymbol(at->asScriptInset()->nuc().back()) ); } @@ -521,7 +522,7 @@ void extractIntegrals(MathArray & ar) if (ar.size() < 3) return; - //lyxerr << "\nIntegrals from: " << ar << "\n"; + //lyxerr << "\nIntegrals from: " << ar << endl; for (MathArray::size_type i = 0; i + 1 < ar.size(); ++i) { MathArray::iterator it = ar.begin() + i; @@ -554,7 +555,7 @@ void extractIntegrals(MathArray & ar) ar.erase(it + 1, tt); *it = MathAtom(p); } - //lyxerr << "\nIntegrals to: " << ar << "\n"; + //lyxerr << "\nIntegrals to: " << ar << endl; } @@ -579,7 +580,7 @@ bool testSum(MathAtom const & at) { return testSumSymbol(at) || - ( at->asScriptInset() + ( at->asScriptInset() && at->asScriptInset()->nuc().size() && testSumSymbol(at->asScriptInset()->nuc().back()) ); } @@ -593,19 +594,19 @@ void extractSums(MathArray & ar) if (ar.size() < 2) return; - //lyxerr << "\nSums from: " << ar << "\n"; + //lyxerr << "\nSums from: " << ar << endl; for (MathArray::size_type i = 0; i + 1 < ar.size(); ++i) { MathArray::iterator it = ar.begin() + i; // is this a sum name? - if (!testSum(*it)) + if (!testSum(ar[i])) continue; // create a proper inset as replacement MathExIntInset * p = new MathExIntInset("sum"); // collect lower bound and summation index - MathScriptInset const * sub = (*it)->asScriptInset(); + MathScriptInset const * sub = ar[i]->asScriptInset(); if (sub && sub->hasDown()) { // try to figure out the summation index from the subscript MathArray const & ar = sub->down(); @@ -633,7 +634,7 @@ void extractSums(MathArray & ar) ar.erase(it + 1, tt); *it = MathAtom(p); } - //lyxerr << "\nSums to: " << ar << "\n"; + //lyxerr << "\nSums to: " << ar << endl; } @@ -665,7 +666,7 @@ bool testDiffFrac(MathAtom const & at) void extractDiff(MathArray & ar) { - //lyxerr << "\nDiffs from: " << ar << "\n"; + //lyxerr << "\nDiffs from: " << ar << endl; for (MathArray::size_type i = 0; i < ar.size(); ++i) { MathArray::iterator it = ar.begin() + i; @@ -675,7 +676,7 @@ void extractDiff(MathArray & ar) MathFracInset const * f = (*it)->asFracInset(); if (!f) { - lyxerr << "should not happen\n"; + lyxerr << "should not happen" << endl; continue; } @@ -731,7 +732,7 @@ void extractDiff(MathArray & ar) ar.erase(it + 1, jt); *it = MathAtom(diff); } - //lyxerr << "\nDiffs to: " << ar << "\n"; + //lyxerr << "\nDiffs to: " << ar << endl; } @@ -755,12 +756,12 @@ void extractLims(MathArray & ar) if (ar.size() < 3) return; - //lyxerr << "\nLimits from: " << ar << "\n"; + //lyxerr << "\nLimits from: " << ar << endl; for (MathArray::size_type i = 0; i + 2 < ar.size(); ++i) { MathArray::iterator it = ar.begin() + i; // is this a limit function? - if (!testSymbol(*it, "lim")) + if (!testSymbol(*it, "lim")) continue; // the next one must be a subscript (without superscript) @@ -777,7 +778,7 @@ void extractLims(MathArray & ar) // the -> splits the subscript int x and x0 MathArray x = MathArray(s.begin(), st); MathArray x0 = MathArray(st + 1, s.end()); - + // use something behind the script as core MathArray f; MathArray::iterator tt = extractArgument(f, it + 2, ar.end()); @@ -788,7 +789,7 @@ void extractLims(MathArray & ar) // create a proper inset as replacement *it = MathAtom(new MathLimInset(f, x, x0)); } - //lyxerr << "\nLimits to: " << ar << "\n"; + //lyxerr << "\nLimits to: " << ar << endl; } @@ -798,6 +799,7 @@ void extractLims(MathArray & ar) void extractStructure(MathArray & ar) { + //lyxerr << "\nStructure from: " << ar << endl; extractIntegrals(ar); extractSums(ar); splitScripts(ar); @@ -810,6 +812,7 @@ void extractStructure(MathArray & ar) extractExps(ar); extractLims(ar); extractStrings(ar); + //lyxerr << "\nStructure to: " << ar << endl; } @@ -832,30 +835,39 @@ void normalize(MathArray const & ar, NormalStream & os) } -void octavize(MathArray const & dat, OctaveStream & os) +void octave(MathArray const & dat, OctaveStream & os) { MathArray ar = dat; extractStructure(ar); for (MathArray::const_iterator it = ar.begin(); it != ar.end(); ++it) - (*it)->octavize(os); + (*it)->octave(os); } -void maplize(MathArray const & dat, MapleStream & os) +void maple(MathArray const & dat, MapleStream & os) { MathArray ar = dat; extractStructure(ar); for (MathArray::const_iterator it = ar.begin(); it != ar.end(); ++it) - (*it)->maplize(os); + (*it)->maple(os); } -void mathematicize(MathArray const & dat, MathematicaStream & os) +void maxima(MathArray const & dat, MaximaStream & os) { MathArray ar = dat; extractStructure(ar); for (MathArray::const_iterator it = ar.begin(); it != ar.end(); ++it) - (*it)->mathematicize(os); + (*it)->maxima(os); +} + + +void mathematica(MathArray const & dat, MathematicaStream & os) +{ + MathArray ar = dat; + extractStructure(ar); + for (MathArray::const_iterator it = ar.begin(); it != ar.end(); ++it) + (*it)->mathematica(os); } @@ -882,15 +894,136 @@ namespace { string captureOutput(string const & cmd, string const & data) { - string outfile = lyx::tempName(string(), "mathextern"); - string full = "echo '" + data + "' | (" + cmd + ") > " + outfile; - lyxerr << "calling: " << full << endl; - Systemcall dummy; - dummy.startscript(Systemcall::Wait, full); - string out = GetFileContents(outfile); - lyx::unlink(outfile); - lyxerr << "result: '" << out << "'" << endl; - return out; + string command = "echo '" + data + "' | " + cmd; + lyxerr << "calling: " << command << endl; + cmd_ret const ret = RunCommand(command); + return ret.second; + } + + string::size_type get_matching_brace(string const & str, string::size_type i) + { + int count = 1; + string::size_type n = str.size(); + while (i < n) { + i = str.find_first_of("{}", i+1); + if (i == string::npos) return i; + if (str[i] == '{') + ++count; + else + --count; + if (count == 0) + return i; + } + return string::npos; + } + + string::size_type get_matching_brace_back(string const & str, string::size_type i) + { + int count = 1; + while (i > 0) { + i = str.find_last_of("{}", i-1); + if (i == string::npos) return i; + if (str[i] == '}') + ++count; + else + --count; + if (count == 0) + return i; + } + return string::npos; + } + + MathArray pipeThroughMaxima(string const &, MathArray const & ar) + { + ostringstream os; + MaximaStream ms(os); + ms << ar; + string expr = os.str(); + string const header = "SIMPSUM:true;"; + + string out; + for (int i = 0; i < 100; ++i) { // at most 100 attempts + // try to fix missing '*' the hard way + // + // > echo "2x;" | maxima + // ... + // (C1) Incorrect syntax: x is not an infix operator + // 2x; + // ^ + // + lyxerr << "checking expr: '" << expr << "'" << endl; + string full = header + "tex(" + expr + ");"; + out = captureOutput("maxima", full); + + // leave loop if expression syntax is probably ok + if (out.find("Incorrect syntax") == string::npos) + break; + + // search line with "Incorrect syntax" + istringstream is(out.c_str()); + string line; + while (is) { + getline(is, line); + if (line.find("Incorrect syntax") != string::npos) + break; + } + + // 2nd next line is the one with caret + getline(is, line); + getline(is, line); + string::size_type pos = line.find('^'); + lyxerr << "found caret at pos: '" << pos << "'" << endl; + if (pos == string::npos || pos < 4) + break; // caret position not found + pos -= 4; // skip the "tex(" part + if (expr[pos] == '*') + break; // two '*' in a row are definitely bad + expr.insert(pos, "*"); + } + + std::vector tmp = getVectorFromString(out, "$$"); + if (tmp.size() < 2) + return MathArray(); + + out = subst(tmp[1],"\\>", ""); + lyxerr << "out: '" << out << "'" << endl; + + // Ugly code that tries to make the result prettier + + string::size_type i = out.find("\\mathchoice"); + while (i != string::npos) { + string::size_type j = get_matching_brace(out, i + 12); + string::size_type k = get_matching_brace(out, j + 1); + k = get_matching_brace(out, k + 1); + k = get_matching_brace(out, k + 1); + string mid = out.substr(i + 13,j - i - 13); + if (mid.find("\\over") != string::npos) + mid = '{' + mid + '}'; + out = out.substr(0,i) + + mid + + out.substr(k + 1); + //lyxerr << "out: " << out << endl; + i = out.find("\\mathchoice", i); + break; + } + + i = out.find("\\over"); + while (i != string::npos) { + string::size_type j = get_matching_brace_back(out, i - 1); + if (j == string::npos || j == 0) break; + string::size_type k = get_matching_brace(out, i + 5); + if (k == string::npos || k + 1 == out.size()) break; + out = out.substr(0,j - 1) + + "\\frac" + + out.substr(j,i - j) + + out.substr(i + 5,k - i - 4) + + out.substr(k + 2); + //lyxerr << "out: " << out << endl; + i = out.find("\\over", i + 4); + } + MathArray res; + mathed_parse_cell(res, out); + return res; } @@ -928,9 +1061,9 @@ namespace { ostringstream os; MapleStream ms(os); ms << ar; - string expr = os.str().c_str(); - lyxerr << "ar: '" << ar << "'\n"; - lyxerr << "ms: '" << os.str() << "'\n"; + string expr = os.str(); + lyxerr << "ar: '" << ar << "'\n" + << "ms: '" << os.str() << "'" << endl; for (int i = 0; i < 100; ++i) { // at most 100 attempts // try to fix missing '*' the hard way by using mint @@ -940,8 +1073,8 @@ namespace { // ^ syntax error - // Probably missing an operator such as * p // - lyxerr << "checking expr: '" << expr << "'\n"; - string out = captureOutput("mint -i 1 -S -s -q -q", expr + ";"); + lyxerr << "checking expr: '" << expr << "'" << endl; + string out = captureOutput("mint -i 1 -S -s -q -q", expr + ';'); if (out.empty()) break; // expression syntax is ok istringstream is(out.c_str()); @@ -956,7 +1089,7 @@ namespace { pos -= 15; // skip the "on line ..." part if (expr[pos] == '*' || (pos > 0 && expr[pos - 1] == '*')) break; // two '*' in a row are definitely bad - expr.insert(pos, "*"); + expr.insert(pos, 1, '*'); } string full = "latex(" + extra + '(' + expr + "));"; @@ -976,11 +1109,11 @@ namespace { ostringstream os; OctaveStream vs(os); vs << ar; - string expr = os.str().c_str(); + string expr = os.str(); string out; - lyxerr << "pipe: ar: '" << ar << "'\n"; - lyxerr << "pipe: expr: '" << expr << "'\n"; + lyxerr << "pipe: ar: '" << ar << "'\n" + << "pipe: expr: '" << expr << "'" << endl; for (int i = 0; i < 100; ++i) { // at most 100 attempts // @@ -989,9 +1122,9 @@ namespace { // >>> ([[1 2 3 ];[2 3 1 ];[3 1 2 ]])([[1 2 3 ];[2 3 1 ];[3 1 2 ]]) // ^ // - lyxerr << "checking expr: '" << expr << "'\n"; + lyxerr << "checking expr: '" << expr << "'" << endl; out = captureOutput("octave -q 2>&1", expr); - lyxerr << "checking out: '" << out << "'\n"; + lyxerr << "checking out: '" << out << "'" << endl; // leave loop if expression syntax is probably ok if (out.find("parse error:") == string::npos) @@ -1002,7 +1135,7 @@ namespace { string line; while (is) { getline(is, line); - lyxerr << "skipping line: '" << line << "'\n"; + lyxerr << "skipping line: '" << line << "'" << endl; if (line.find(">>> ") != string::npos) break; } @@ -1010,14 +1143,14 @@ namespace { // found line with error, next line is the one with caret getline(is, line); string::size_type pos = line.find('^'); - lyxerr << "caret line: '" << line << "'\n"; - lyxerr << "found caret at pos: '" << pos << "'\n"; + lyxerr << "caret line: '" << line << "'" << endl; + lyxerr << "found caret at pos: '" << pos << "'" << endl; if (pos == string::npos || pos < 4) break; // caret position not found pos -= 4; // skip the ">>> " part if (expr[pos] == '*') break; // two '*' in a row are definitely bad - expr.insert(pos, "*"); + expr.insert(pos, 1, '*'); } if (out.size() < 6) @@ -1028,7 +1161,7 @@ namespace { // parse output as matrix or single number MathAtom at(new MathArrayInset("array", out)); - MathArrayInset const * mat = at.nucleus()->asArrayInset(); + MathArrayInset const * mat = at->asArrayInset(); MathArray res; if (mat->ncols() == 1 && mat->nrows() == 1) res.append(mat->cell(0)); @@ -1048,21 +1181,24 @@ MathArray pipeThroughExtern(string const & lang, string const & extra, if (lang == "octave") return pipeThroughOctave(extra, ar); + if (lang == "maxima") + return pipeThroughMaxima(extra, ar); + if (lang == "maple") return pipeThroughMaple(extra, ar); // create normalized expression ostringstream os; NormalStream ns(os); - os << "[" << extra << ' '; + os << '[' << extra << ' '; ns << ar; - os << "]"; - string data = os.str().c_str(); + os << ']'; + string data = os.str(); // search external script string file = LibFileSearch("mathed", "extern_" + lang); if (file.empty()) { - lyxerr << "converter to '" << lang << "' not found\n"; + lyxerr << "converter to '" << lang << "' not found" << endl; return MathArray(); }