]> git.lyx.org Git - lyx.git/blobdiff - src/mathed/formula.C
fix typo that put too many include paths for most people
[lyx.git] / src / mathed / formula.C
index 0e4ab85af1c1f25b189d97144bcdeb0d860f4f42..a58b4911dc221abd1c6213b01b2234922703de2c 100644 (file)
 #endif
 
 #include <config.h>
-#include <fstream>
 
 #include "formula.h"
 #include "commandtags.h"
 #include "math_cursor.h"
 #include "math_parser.h"
+#include "math_charinset.h"
+#include "math_arrayinset.h"
+#include "math_deliminset.h"
 #include "lyx_main.h"
 #include "BufferView.h"
 #include "gettext.h"
 #include "debug.h"
-#include "lyx_gui_misc.h"
+#include "frontends/Alert.h"
 #include "support/LOstream.h"
 #include "support/LAssert.h"
 #include "support/lyxlib.h"
-#include "support/syscall.h"
+#include "support/systemcall.h"
 #include "support/lstrings.h"
+#include "support/filetools.h" // LibFileSearch
 #include "LyXView.h"
 #include "Painter.h"
 #include "lyxrc.h"
-#include "math_matrixinset.h"
-#include "mathed/support.h"
+#include "math_hullinset.h"
+#include "math_support.h"
+#include "math_mathmlstream.h"
+#include "textpainter.h"
 
 using std::ostream;
 using std::ifstream;
@@ -46,19 +51,211 @@ using std::istream;
 using std::pair;
 using std::endl;
 using std::vector;
+using std::getline;
+
+
+namespace {
+
+       string captureOutput(string const & cmd, string const & data)
+       {
+               string outfile = lyx::tempName(string(), "mathextern");
+               string full =  "echo '" + data + "' | (" + cmd + ") > " + outfile;
+               lyxerr << "calling: " << full << "\n";
+               Systemcall dummy;
+               dummy.startscript(Systemcall::Wait, full);
+               string out = GetFileContents(outfile);
+               lyx::unlink(outfile);
+               lyxerr << "result: '" << out << "'\n";
+               return out;
+       }
+
+
+       MathArray pipeThroughMaple(string const & extra, MathArray const & ar)
+       {
+               string header = "readlib(latex):\n";
+
+               // remove the \\it for variable names
+               //"#`latex/csname_font` := `\\it `:"
+               header +=
+                       "`latex/csname_font` := ``:\n";
+
+               // export matrices in (...) instead of [...]
+               header +=
+                       "`latex/latex/matrix` := "
+                               "subs(`[`=`(`, `]`=`)`,"
+                                       "eval(`latex/latex/matrix`)):\n";
+
+               // replace \\cdots with proper '*'
+               header +=
+                       "`latex/latex/*` := "
+                               "subs(`\\,`=`\\cdot `,"
+                                       "eval(`latex/latex/*`)):\n";
+
+               // remove spurious \\noalign{\\medskip} in matrix output
+               header +=
+                       "`latex/latex/matrix`:= "
+                               "subs(`\\\\\\\\\\\\noalign{\\\\medskip}` = `\\\\\\\\`,"
+                                       "eval(`latex/latex/matrix`)):\n";
+
+               //"#`latex/latex/symbol` "
+               //      " := subs((\\'_\\' = \\'`\\_`\\',eval(`latex/latex/symbol`)): ";
+
+               string trailer = "quit;";
+               ostringstream os;
+               MapleStream ms(os);
+               ms << ar;
+               string expr = os.str().c_str();
+
+               for (int i = 0; i < 100; ++i) { // at most 100 attempts
+                       // try to fix missing '*' the hard way by using mint
+                       //
+                       // ... > echo "1A;" | mint -i 1 -S -s -q
+                       // on line     1: 1A;
+                       //                 ^ 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 + ";");
+                       if (out.empty())
+                               break; // expression syntax is ok
+                       istringstream is(out.c_str());
+                       string line;
+                       getline(is, line);
+                       if (line.find("on line") != 0)
+                               break; // error message not identified
+                       getline(is, line);
+                       string::size_type pos = line.find('^');
+                       if (pos == string::npos || pos < 15)
+                               break; // caret position not found
+                       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,  "*");
+               }
+
+               string full = "latex(" +  extra + '(' + expr + "));";
+               string out = captureOutput("maple -q", header + full + trailer);
+
+               // change \_ into _
+
+               //
+               MathArray res;
+               mathed_parse_cell(res, out);
+               return res;
+       }
+
+
+       MathArray pipeThroughOctave(string const &, MathArray const & ar)
+       {
+               ostringstream os;
+               OctaveStream vs(os);
+               vs << ar;
+               string expr = os.str().c_str();
+               string out;
+
+               for (int i = 0; i < 100; ++i) { // at most 100 attempts
+                       //
+                       // try to fix missing '*' the hard way
+                       // parse error:
+                       // >>> ([[1 2 3 ];[2 3 1 ];[3 1 2 ]])([[1 2 3 ];[2 3 1 ];[3 1 2 ]])
+                       //                                   ^
+                       //
+                       lyxerr << "checking expr: '" << expr << "'\n";
+                       out = captureOutput("octave -q 2>&1", expr);
+                       lyxerr << "checking out: '" << out << "'\n";
+
+                       // leave loop if expression syntax is probably ok
+                       if (out.find("parse error:") == string::npos)
+                               break;
+
+                       // search line with single caret
+                       istringstream is(out.c_str());
+                       string line;
+                       while (is) {
+                               getline(is, line);
+                               lyxerr << "skipping line: '" << line << "'\n";
+                               if (line.find(">>> ") != string::npos)
+                                       break;
+                       }
+
+                       // 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";
+                       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,  "*");
+               }
+
+               if (out.size() < 6)
+                       return MathArray();
+
+               // remove 'ans = '
+               out = out.substr(6);
+
+               // parse output as matrix or single number
+               MathAtom at(new MathArrayInset("array", out));
+               MathArrayInset const * mat = at.nucleus()->asArrayInset();
+               MathArray res;
+               if (mat->ncols() == 1 && mat->nrows() == 1)
+                       res.push_back(mat->cell(0));
+               else {
+                       res.push_back(MathAtom(new MathDelimInset("(", ")")));
+                       res.back()->cell(0).push_back(at);
+               }
+               return res;
+       }
+
+
+       MathArray pipeThroughExtern(string const & lang, string const & extra,
+               MathArray const & ar)
+       {
+               if (lang == "octave")
+                       return pipeThroughOctave(extra, ar);
+
+               if (lang == "maple")
+                       return pipeThroughMaple(extra, ar);
+
+               // create normalized expression
+               ostringstream os;
+               NormalStream ns(os);
+               os << "[" << extra << ' ';
+               ns << ar;
+               os << "]";
+               string data = os.str().c_str();
+
+               // search external script
+               string file = LibFileSearch("mathed", "extern_" + lang);
+               if (file.empty()) {
+                       lyxerr << "converter to '" << lang << "' not found\n";
+                       return MathArray();
+               }
+
+               // run external sript
+               string out = captureOutput(file, data);
+               MathArray res;
+               mathed_parse_cell(res, out);
+               return res;
+       }
+
+}
 
 
 InsetFormula::InsetFormula()
-       : par_(MathAtom(new MathMatrixInset))
+       : par_(MathAtom(new MathHullInset))
 {}
 
 
 InsetFormula::InsetFormula(MathInsetTypes t)
-       : par_(MathAtom(new MathMatrixInset(t)))
+       : par_(MathAtom(new MathHullInset(t)))
 {}
 
 
-InsetFormula::InsetFormula(string const & s) 
+InsetFormula::InsetFormula(string const & s)
 {
        if (s.size()) {
                bool res = mathed_parse_normal(par_, s);
@@ -68,7 +265,7 @@ InsetFormula::InsetFormula(string const & s)
 
                if (!res) {
                        lyxerr << "cannot interpret '" << s << "' as math\n";
-                       par_ = MathAtom(new MathMatrixInset(LM_OT_SIMPLE));
+                       par_ = MathAtom(new MathHullInset(LM_OT_SIMPLE));
                }
        }
        metrics();
@@ -81,36 +278,56 @@ Inset * InsetFormula::clone(Buffer const &, bool) const
 }
 
 
-void InsetFormula::write(Buffer const * buf, ostream & os) const
+void InsetFormula::write(Buffer const *, ostream & os) const
 {
        os << "Formula ";
-       latex(buf, os, false, false);
+       WriteStream wi(os, false, false);
+       par_->write(wi);
 }
 
 
 int InsetFormula::latex(Buffer const *, ostream & os, bool fragile, bool) const
 {
-       par_->write(os, fragile);
-       return 1;
+       WriteStream wi(os, fragile, true);
+       par_->write(wi);
+       return wi.line();
 }
 
 
 int InsetFormula::ascii(Buffer const *, ostream & os, int) const
 {
-       par_->write(os, false);
-       return 1;
+#if 1
+       TextMetricsInfo mi;
+       par()->metricsT(mi);
+       TextPainter tpain(par()->width(), par()->height());
+       par()->drawT(tpain, 0, par()->ascent());
+       tpain.show(os);
+       // reset metrics cache to "real" values
+       metrics();
+       return tpain.textheight();
+#else
+       WriteStream wi(os, false);
+       par_->write(wi);
+       return wi.line();
+#endif
 }
 
 
 int InsetFormula::linuxdoc(Buffer const * buf, ostream & os) const
 {
-       return ascii(buf, os, 0);
+       return docbook(buf, os);
 }
 
 
 int InsetFormula::docbook(Buffer const * buf, ostream & os) const
 {
-       return ascii(buf, os, 0);
+       MathMLStream ms(os);
+       ms << MTag("equation") << MTag("alt");
+       int res = ascii(buf, ms.os(), 0);
+       ms << ETag("alt") << MTag("math");
+       ms << par_.nucleus();
+       ms << ETag("math") << ETag("equation");
+       return ms.line() + res;
 }
 
 
@@ -121,42 +338,46 @@ void InsetFormula::read(Buffer const *, LyXLex & lex)
 }
 
 
-void InsetFormula::draw(BufferView * bv, LyXFont const &,
+//ostream & operator<<(ostream & os, LyXCursor const & c)
+//{
+//     os << '[' << c.x() << ' ' << c.y() << ' ' << c.pos() << ']';
+//     return os;
+//}
+
+
+void InsetFormula::draw(BufferView * bv, LyXFont const & font,
                        int y, float & xx, bool) const
 {
-       int x = int(xx) - 1;
-       y -= 2;
-
-       MathInset::workwidth = bv->workWidth();
-       Painter & pain = bv->painter();
+       metrics(bv, font);
 
-       metrics();
+       int x = int(xx);
        int w = par_->width();
        int h = par_->height();
        int a = par_->ascent();
-       pain.fillRectangle(x, y - a, w, h, LColor::mathbg);
+       Painter & pain = bv->painter();
+
+       if (lcolor.getX11Name(LColor::mathbg)!=lcolor.getX11Name(LColor::background))
+               pain.fillRectangle(x, y - a, w, h, LColor::mathbg);
 
-       if (mathcursor && mathcursor->formula() == this) {
+       if (mathcursor &&
+                       const_cast<InsetFormulaBase const *>(mathcursor->formula()) == this)
+       {
                mathcursor->drawSelection(pain);
                pain.rectangle(x, y - a, w, h, LColor::mathframe);
        }
 
        par_->draw(pain, x, y);
        xx += par_->width();
+       xo_ = x;
+       yo_ = y;
 
        setCursorVisible(false);
 }
 
 
-void InsetFormula::metrics() const 
-{
-       par_->metrics(display() ? LM_ST_DISPLAY : LM_ST_TEXT);
-}
-
-
 vector<string> const InsetFormula::getLabelList() const
 {
-       return mat()->getLabelList();
+       return hull()->getLabelList();
 }
 
 
@@ -168,7 +389,7 @@ InsetFormula::localDispatch(BufferView * bv, kb_action action,
 
        switch (action) {
 
-               case LFUN_BREAKLINE: 
+               case LFUN_BREAKLINE:
                        bv->lockedInsetStoreUndo(Undo::INSERT);
                        mathcursor->breakLine();
                        mathcursor->normalize();
@@ -180,9 +401,9 @@ InsetFormula::localDispatch(BufferView * bv, kb_action action,
                        //lyxerr << "toggling all numbers\n";
                        if (display()) {
                                bv->lockedInsetStoreUndo(Undo::INSERT);
-                               bool old = mat()->numberedType();
+                               bool old = hull()->numberedType();
                                for (MathInset::row_type row = 0; row < par_->nrows(); ++row)
-                                       mat()->numbered(row, !old);
+                                       hull()->numbered(row, !old);
                                bv->owner()->message(old ? _("No number") : _("Number"));
                                updateLocal(bv, true);
                        }
@@ -194,10 +415,10 @@ InsetFormula::localDispatch(BufferView * bv, kb_action action,
                        //lyxerr << "toggling line number\n";
                        if (display()) {
                                bv->lockedInsetStoreUndo(Undo::INSERT);
-                               MathCursor::row_type row = mathcursor->row();
-                               bool old = mat()->numbered(row);
+                               MathCursor::row_type row = mathcursor->hullRow();
+                               bool old = hull()->numbered(row);
                                bv->owner()->message(old ? _("No number") : _("Number"));
-                               mat()->numbered(row, !old);
+                               hull()->numbered(row, !old);
                                updateLocal(bv, true);
                        }
                        break;
@@ -207,18 +428,16 @@ InsetFormula::localDispatch(BufferView * bv, kb_action action,
                {
                        bv->lockedInsetStoreUndo(Undo::INSERT);
 
-                       MathCursor::row_type row = mathcursor->row();
-                       string old_label = mat()->label(row);
+                       MathCursor::row_type row = mathcursor->hullRow();
+                       string old_label = hull()->label(row);
                        string new_label = arg;
 
                        if (new_label.empty()) {
                                string const default_label =
                                        (lyxrc.label_init_length >= 0) ? "eq:" : "";
                                pair<bool, string> const res = old_label.empty()
-                                       ? askForText(_("Enter new label to insert:"), default_label)
-                                       : askForText(_("Enter label:"), old_label);
-                               
-                               lyxerr << "res: " << res.first << " - '" << res.second << "'\n";
+                                       ? Alert::askForText(_("Enter new label to insert:"), default_label)
+                                       : Alert::askForText(_("Enter label:"), old_label);
                                if (!res.first)
                                        break;
                                new_label = frontStrip(strip(res.second));
@@ -229,69 +448,64 @@ InsetFormula::localDispatch(BufferView * bv, kb_action action,
 
                        if (!new_label.empty()) {
                                lyxerr << "setting label to '" << new_label << "'\n";
-                               mat()->numbered(row, true);
+                               hull()->numbered(row, true);
                        }
 
                        if (!new_label.empty() && bv->ChangeRefsIfUnique(old_label, new_label))
                                bv->redraw();
 
-                       mat()->label(row, new_label);
+                       hull()->label(row, new_label);
 
                        updateLocal(bv, true);
                        break;
                }
 
-               case LFUN_MATH_EXTERN:
-                       bv->lockedInsetStoreUndo(Undo::EDIT);
-                       handleExtern(arg, bv);
-                       updateLocal(bv, true);
-                       break;
-
                case LFUN_MATH_MUTATE:
                {
                        bv->lockedInsetStoreUndo(Undo::EDIT);
                        int x;
                        int y;
                        mathcursor->getPos(x, y);
-                       mat()->mutate(arg);
+                       hull()->mutate(arg);
                        mathcursor->setPos(x, y);
                        mathcursor->normalize();
                        updateLocal(bv, true);
                        break;
                }
 
+               case LFUN_MATH_EXTERN:
+               {
+                       bv->lockedInsetStoreUndo(Undo::EDIT);
+                       handleExtern(arg);
+                       // re-compute inset dimension
+                       metrics(bv);
+                       updateLocal(bv, true);
+                       break;
+               }
+
                case LFUN_MATH_DISPLAY:
                {
-                       int x;
-                       int y;
+                       int x = 0;
+                       int y = 0;
                        mathcursor->getPos(x, y);
-                       if (mat()->getType() == LM_OT_SIMPLE)
-                               mat()->mutate(LM_OT_EQUATION);
+                       if (hull()->getType() == LM_OT_SIMPLE)
+                               hull()->mutate(LM_OT_EQUATION);
                        else
-                               mat()->mutate(LM_OT_SIMPLE);
+                               hull()->mutate(LM_OT_SIMPLE);
                        mathcursor->setPos(x, y);
                        mathcursor->normalize();
                        updateLocal(bv, true);
                        break;
                }
-               
+
                case LFUN_PASTESELECTION:
                {
                        string const clip = bv->getClipboard();
-               if (!clip.empty())
+               if (!clip.empty())
                                mathed_parse_normal(par_, clip);
                        break;
                }
 
-               case LFUN_MATH_COLUMN_INSERT:
-               {
-                       if (mat()->getType() == LM_OT_ALIGN)
-                               mat()->mutate(LM_OT_ALIGNAT);
-                       mat()->addCol(mat()->ncols());
-                       mathcursor->normalize();
-                       updateLocal(bv, true);
-               }
-
                default:
                        result = InsetFormulaBase::localDispatch(bv, action, arg);
        }
@@ -300,40 +514,64 @@ InsetFormula::localDispatch(BufferView * bv, kb_action action,
 }
 
 
-void InsetFormula::handleExtern(const string & arg, BufferView *)
+bool needEqnArray(string const & extra)
 {
-       //string outfile = lyx::tempName("maple.out");
-       string outfile = "/tmp/lyx2" + arg + ".out";
-       ostringstream os;
-       mat()->writeNormal(os); 
-       string code = os.str().c_str();
-       string script = "lyx2" + arg + " '" + code + "' " + outfile;
-       lyxerr << "calling: " << script << endl;
-       Systemcalls cmd(Systemcalls::System, script, 0);
-
-       ifstream is(outfile.c_str());
-       mathed_parse_normal(par_, is);
-       metrics();
+       return extra == "dsolve";
+}
+
+
+void InsetFormula::handleExtern(const string & arg)
+{
+       // where are we?
+       if (!mathcursor)
+               return;
+
+       string lang;
+       string extra;
+       istringstream iss(arg.c_str());
+       iss >> lang >> extra;
+       if (extra.empty())
+               extra = "noextra";
+
+       bool selected = mathcursor->selection();
+
+       MathArray ar;
+       if (needEqnArray(extra)) {
+               mathcursor->last();
+               //mathcursor->readLine(ar);
+               mathcursor->breakLine();
+       } else if (selected) {
+               mathcursor->selGet(ar);
+               //lyxerr << "use selection: " << ar << "\n";
+       } else {
+               mathcursor->last();
+               mathcursor->stripFromLastEqualSign();
+               ar = mathcursor->cursor().cell();
+               mathcursor->insert(MathAtom(new MathCharInset('=', LM_TC_VAR)));
+               //lyxerr << "use whole cell: " << ar << "\n";
+       }
+
+       mathcursor->insert(pipeThroughExtern(lang, extra, ar));
 }
 
 
 bool InsetFormula::display() const
 {
-       return mat()->getType() != LM_OT_SIMPLE;
+       return hull()->getType() != LM_OT_SIMPLE;
 }
 
 
-MathMatrixInset const * InsetFormula::mat() const
+MathHullInset const * InsetFormula::hull() const
 {
-       lyx::Assert(par_->asMatrixInset());
-       return par_->asMatrixInset();
+       lyx::Assert(par_->asHullInset());
+       return par_->asHullInset();
 }
 
 
-MathMatrixInset * InsetFormula::mat()
+MathHullInset * InsetFormula::hull()
 {
-       lyx::Assert(par_->asMatrixInset());
-       return par_->asMatrixInset();
+       lyx::Assert(par_->asHullInset());
+       return par_->asHullInset();
 }
 
 
@@ -351,7 +589,9 @@ void InsetFormula::validate(LaTeXFeatures & features) const
 
 bool InsetFormula::insetAllowed(Inset::Code code) const
 {
-       return code == Inset::LABEL_CODE && display(); 
+       return
+               (code == Inset::LABEL_CODE && display())
+               || code == Inset::ERT_CODE;
 }
 
 
@@ -367,14 +607,14 @@ int InsetFormula::descent(BufferView *, LyXFont const &) const
 }
 
 
-int InsetFormula::width(BufferView *, LyXFont const &) const
+int InsetFormula::width(BufferView * bv, LyXFont const & font) const
 {
-       metrics();
+       metrics(bv, font);
        return par_->width();
 }
 
 
 MathInsetTypes InsetFormula::getType() const
 {
-       return mat()->getType();
+       return hull()->getType();
 }