/************************************************************************* * * $RCSfile: parse.cxx,v $ * * $Revision: 1.1.1.1 $ * * last change: $Author: hr $ $Date: 2000-09-18 16:57:26 $ * * The Contents of this file are made available subject to the terms of * either of the following licenses * * - GNU Lesser General Public License Version 2.1 * - Sun Industry Standards Source License Version 1.1 * * Sun Microsystems Inc., October, 2000 * * GNU Lesser General Public License Version 2.1 * ============================================= * Copyright 2000 by Sun Microsystems, Inc. * 901 San Antonio Road, Palo Alto, CA 94303, USA * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License version 2.1, as published by the Free Software Foundation. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, * MA 02111-1307 USA * * * Sun Industry Standards Source License Version 1.1 * ================================================= * The contents of this file are subject to the Sun Industry Standards * Source License Version 1.1 (the "License"); You may not use this file * except in compliance with the License. You may obtain a copy of the * License at http://www.openoffice.org/license.html. * * Software provided under this License is provided on an "AS IS" basis, * WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, * WITHOUT LIMITATION, WARRANTIES THAT THE SOFTWARE IS FREE OF DEFECTS, * MERCHANTABLE, FIT FOR A PARTICULAR PURPOSE, OR NON-INFRINGING. * See the License for the specific provisions governing your rights and * obligations concerning the Software. * * The Initial Developer of the Original Code is: Sun Microsystems, Inc. * * Copyright: 2000 by Sun Microsystems, Inc. * * All Rights Reserved. * * Contributor(s): _______________________________________ * * ************************************************************************/ #pragma hdrstop #include #define SMDLL 1 #ifndef PARSE_HXX #include "parse.hxx" #endif #ifndef XCHAR_HXX #include "xchar.hxx" #endif #ifndef _STARMATH_HRC #include "starmath.hrc" #endif #ifndef _SMDLL_HXX #include "smdll.hxx" #endif #ifndef _SMMOD_HXX #include "smmod.hxx" #endif #ifndef CONFIG_HXX #include "config.hxx" #endif #include "node.hxx" static inline BOOL strnccmp(const String &u1, xub_StrLen nIdx, const sal_Char *s2, xub_StrLen nLen) { return u1.EqualsIgnoreCaseAscii( s2, nIdx, nLen ); } static const xub_Unicode aDelimiterTable[] = { ' ', '\t', '\n', '\r', '+', '-', '*', '/', '=', '#', '%', '\\', '"', '~', '`', '>', '<', '&', '|', '(', ')', '{', '}', '[', ']', '^', '_', '\0' // end of list symbol }; /////////////////////////////////////////////////////////////////////////// SmToken::SmToken() : eType (TUNKNOWN), cMathChar ('\0') { nGroup = nLevel = nRow = nCol = 0; } /////////////////////////////////////////////////////////////////////////// struct SmTokenTableEntry { const sal_Char* pIdent; SmTokenType eType; xub_Unicode cMathChar; ULONG nGroup; USHORT nLevel; }; static const SmTokenTableEntry aTokenTable[] = { { "#", TPOUND, '\0', 0, 0 }, { "##", TDPOUND, '\0', 0, 0 }, { "&", TAND, MS_AND, TGPRODUCT, 0 }, { "(", TLPARENT, MS_LPARENT, TGLBRACES, 5 }, //! 5 to continue expression { ")", TRPARENT, MS_RPARENT, TGRBRACES, 0 }, //! 0 to terminate expression { "*", TMULTIPLY, MS_MULTIPLY, TGPRODUCT, 0 }, { "+", TPLUS, MS_PLUS, TGUNOPER | TGSUM, 5 }, { "+-", TPLUSMINUS, MS_PLUSMINUS, TGUNOPER | TGSUM, 5 }, { "-", TMINUS, MS_MINUS, TGUNOPER | TGSUM, 5 }, { "-+", TMINUSPLUS, MS_MINUSPLUS, TGUNOPER | TGSUM, 5 }, { ".", TPOINT, '\0', 0, 0 }, { "/", TDIVIDEBY, MS_SLASH, TGPRODUCT, 0 }, { "<", TLT, MS_LT, TGRELATION, 0 }, { "<<", TLL, MS_LL, TGRELATION, 0 }, { "<=", TLE, MS_LE, TGRELATION, 0 }, { "<>", TNEQ, MS_NEQ, TGRELATION, 0}, { "", TPLACE, MS_PLACE, 0, 5 }, { "=", TASSIGN, MS_ASSIGN, TGRELATION, 0}, { ">", TGT, MS_GT, TGRELATION, 0 }, { ">=", TGE, MS_GE, TGRELATION, 0 }, { ">>", TGG, MS_GG, TGRELATION, 0 }, { "Im" , TIM, MS_IM, TGSTANDALONE, 5 }, { "MZ23", TDEBUG, '\0', TGATTRIBUT, 0 }, { "Re" , TRE, MS_RE, TGSTANDALONE, 5 }, { "abs", TABS, '\0', TGUNOPER, 13 }, { "arcosh", TACOSH, '\0', TGFUNCTION, 5 }, { "arcoth", TACOTH, '\0', TGFUNCTION, 5 }, { "acute", TACUTE, MS_ACUTE, TGATTRIBUT, 5 }, { "aleph" , TALEPH, MS_ALEPH, TGSTANDALONE, 5 }, { "alignb", TALIGNC, '\0', TGALIGN | TGDISCARDED, 0}, { "alignc", TALIGNC, '\0', TGALIGN, 0}, { "alignl", TALIGNL, '\0', TGALIGN, 0}, { "alignm", TALIGNC, '\0', TGALIGN | TGDISCARDED, 0}, { "alignr", TALIGNR, '\0', TGALIGN, 0}, { "alignt", TALIGNC, '\0', TGALIGN | TGDISCARDED, 0}, { "and", TAND, MS_AND, TGPRODUCT, 0}, { "approx", TAPPROX, MS_APPROX, TGRELATION, 0}, { "arccos", TACOS, '\0', TGFUNCTION, 5}, { "arccot", TACOT, '\0', TGFUNCTION, 5}, { "arcsin", TASIN, '\0', TGFUNCTION, 5}, { "arctan", TATAN, '\0', TGFUNCTION, 5}, { "arsinh", TASINH, '\0', TGFUNCTION, 5}, { "artanh", TATANH, '\0', TGFUNCTION, 5}, { "backepsilon" , TBACKEPSILON, MS_BACKEPSILON, TGSTANDALONE, 5}, { "bar", TBAR, MS_BAR, TGATTRIBUT, 5}, { "binom", TBINOM, '\0', 0, 5 }, { "black", TBLACK, '\0', TGCOLOR, 0}, { "blue", TBLUE, '\0', TGCOLOR, 0}, { "bold", TBOLD, '\0', TGFONTATTR, 5}, { "boper", TBOPER, '\0', TGPRODUCT, 0}, { "breve", TBREVE, MS_BREVE, TGATTRIBUT, 5}, { "bslash", TBACKSLASH, MS_BACKSLASH, TGPRODUCT, 0 }, { "cdot", TCDOT, MS_CDOT, TGPRODUCT, 0}, { "check", TCHECK, MS_CHECK, TGATTRIBUT, 5}, { "circ" , TCIRC, MS_CIRC, TGSTANDALONE, 5}, { "circle", TCIRCLE, MS_CIRCLE, TGATTRIBUT, 5}, { "color", TCOLOR, '\0', TGFONTATTR, 5}, { "coprod", TCOPROD, MS_COPROD, TGOPER, 5}, { "cos", TCOS, '\0', TGFUNCTION, 5}, { "cosh", TCOSH, '\0', TGFUNCTION, 5}, { "cot", TCOT, '\0', TGFUNCTION, 5}, { "coth", TCOTH, '\0', TGFUNCTION, 5}, { "csub", TCSUB, '\0', TGPOWER, 0}, { "csup", TCSUP, '\0', TGPOWER, 0}, { "cyan", TCYAN, '\0', TGCOLOR, 0}, { "dddot", TDDDOT, MS_DDDOT, TGATTRIBUT, 5}, { "ddot", TDDOT, MS_DDOT, TGATTRIBUT, 5}, { "def", TDEF, MS_DEF, TGRELATION, 0}, { "div", TDIV, MS_DIV, TGPRODUCT, 0}, { "divides", TDIVIDES, MS_LINE, TGRELATION, 0}, { "dlarrow" , TDLARROW, MS_DLARROW, TGSTANDALONE, 5}, { "dlrarrow" , TDLRARROW, MS_DLRARROW, TGSTANDALONE, 5}, { "dot", TDOT, MS_DOT, TGATTRIBUT, 5}, { "dotsaxis", TDOTSAXIS, MS_DOTSAXIS, TGSTANDALONE, 5}, // 5 to continue expression { "dotsdiag", TDOTSDIAG, MS_DOTSUP, TGSTANDALONE, 5}, // { "dotsdown", TDOTSDOWN, MS_DOTSDOWN, TGSTANDALONE, 5}, // { "dotslow", TDOTSLOW, MS_DOTSLOW, TGSTANDALONE, 5}, // { "dotsup", TDOTSUP, MS_DOTSUP, TGSTANDALONE, 5}, // { "dotsvert", TDOTSVERT, MS_DOTSVERT, TGSTANDALONE, 5}, // { "downarrow" , TDOWNARROW, MS_DOWNARROW, TGSTANDALONE, 5}, { "drarrow" , TDRARROW, MS_DRARROW, TGSTANDALONE, 5}, { "emptyset" , TEMPTYSET, MS_EMPTYSET, TGSTANDALONE, 5}, { "equiv", TEQUIV, MS_EQUIV, TGRELATION, 0}, { "exists", TEXISTS, MS_EXISTS, TGSTANDALONE, 5}, { "exp", TEXP, '\0', TGFUNCTION, 5}, { "fact", TFACT, MS_FACT, TGUNOPER, 5}, { "fixed", TFIXED, '\0', TGFONT, 0}, { "font", TFONT, '\0', TGFONTATTR, 5}, { "forall", TFORALL, MS_FORALL, TGSTANDALONE, 5}, { "from", TFROM, '\0', TGLIMIT, 0}, { "func", TFUNC, '\0', TGFUNCTION, 5}, { "ge", TGE, MS_GE, TGRELATION, 0}, { "geslant", TGESLANT, MS_GESLANT, TGRELATION, 0 }, { "gg", TGG, MS_GG, TGRELATION, 0}, { "grave", TGRAVE, MS_GRAVE, TGATTRIBUT, 5}, { "green", TGREEN, '\0', TGCOLOR, 0}, { "gt", TGT, MS_GT, TGRELATION, 0}, { "hat", THAT, MS_HAT, TGATTRIBUT, 5}, { "hbar" , THBAR, MS_HBAR, TGSTANDALONE, 5}, { "iiint", TIIINT, MS_IIINT, TGOPER, 5}, { "iint", TIINT, MS_IINT, TGOPER, 5}, { "in", TIN, MS_IN, TGRELATION, 0}, { "infinity" , TINFINITY, MS_INFINITY, TGSTANDALONE, 5}, { "infty" , TINFINITY, MS_INFINITY, TGSTANDALONE, 5}, { "int", TINT, MS_INT, TGOPER, 5}, { "intersection", TINTERSECT, MS_INTERSECT, TGPRODUCT, 0}, { "ital", TITALIC, '\0', TGFONTATTR, 5}, { "italic", TITALIC, '\0', TGFONTATTR, 5}, { "lambdabar" , TLAMBDABAR, MS_LAMBDABAR, TGSTANDALONE, 5}, { "langle", TLANGLE, MS_LANGLE, TGLBRACES, 5}, { "lbrace", TLBRACE, MS_LBRACE, TGLBRACES, 5}, { "lceil", TLCEIL, MS_LCEIL, TGLBRACES, 5}, { "ldbracket", TLDBRACKET, MS_LDBRACKET, TGLBRACES, 5}, { "ldline", TLDLINE, MS_DLINE, TGLBRACES, 5}, { "le", TLE, MS_LE, TGRELATION, 0}, { "left", TLEFT, '\0', 0, 5}, { "leftarrow" , TLEFTARROW, MS_LEFTARROW, TGSTANDALONE, 5}, { "leslant", TLESLANT, MS_LESLANT, TGRELATION, 0 }, { "lfloor", TLFLOOR, MS_LFLOOR, TGLBRACES, 5}, { "lim", TLIM, '\0', TGOPER, 5}, { "liminf", TLIMINF, '\0', TGOPER, 5}, { "limsup", TLIMSUP, '\0', TGOPER, 5}, { "lint", TLINT, MS_LINT, TGOPER, 5}, { "ll", TLL, MS_LL, TGRELATION, 0}, { "lline", TLLINE, MS_LINE, TGLBRACES, 5}, { "llint", TLLINT, MS_LLINT, TGOPER, 5}, { "lllint", TLLLINT, MS_LLLINT, TGOPER, 5}, { "ln", TLN, '\0', TGFUNCTION, 5}, { "log", TLOG, '\0', TGFUNCTION, 5}, { "lsub", TLSUB, '\0', TGPOWER, 0}, { "lsup", TLSUP, '\0', TGPOWER, 0}, { "lt", TLT, MS_LT, TGRELATION, 0}, { "magenta", TMAGENTA, '\0', TGCOLOR, 0}, { "matrix", TMATRIX, '\0', 0, 5}, { "minusplus", TMINUSPLUS, MS_MINUSPLUS, TGUNOPER | TGSUM, 5}, { "mline", TMLINE, MS_LINE, 0, 0}, //! nicht in TGRBRACES, Level 0 { "nabla", TNABLA, MS_NABLA, TGSTANDALONE, 5}, { "nbold", TNBOLD, '\0', TGFONTATTR, 5}, { "ndivides", TNDIVIDES, MS_NDIVIDES, TGRELATION, 0}, { "neg", TNEG, MS_NEG, TGUNOPER, 5 }, { "neq", TNEQ, MS_NEQ, TGRELATION, 0}, { "newline", TNEWLINE, '\0', 0, 0}, { "ni", TNI, MS_NI, TGRELATION, 0}, { "nitalic", TNITALIC, '\0', TGFONTATTR, 5}, { "none", TNONE, '\0', TGLBRACES | TGRBRACES, 0}, { "notin", TNOTIN, MS_NOTIN, TGRELATION, 0}, { "nsubset", TNSUBSET, MS_NSUBSET, TGRELATION, 0 }, { "nsupset", TNSUPSET, MS_NSUPSET, TGRELATION, 0 }, { "nsubseteq", TNSUBSETEQ, MS_NSUBSETEQ, TGRELATION, 0 }, { "nsupseteq", TNSUPSETEQ, MS_NSUPSETEQ, TGRELATION, 0 }, { "nroot", TNROOT, MS_SQRT, TGUNOPER, 5}, { "odivide", TODIVIDE, MS_ODIVIDE, TGPRODUCT, 0}, { "odot", TODOT, MS_ODOT, TGPRODUCT, 0}, { "ominus", TOMINUS, MS_OMINUS, TGSUM, 0}, { "oper", TOPER, '\0', TGOPER, 5}, { "oplus", TOPLUS, MS_OPLUS, TGSUM, 0}, { "or", TOR, MS_OR, TGSUM, 0}, { "ortho", TORTHO, MS_ORTHO, TGRELATION, 0}, { "otimes", TOTIMES, MS_OTIMES, TGPRODUCT, 0}, { "over", TOVER, '\0', TGPRODUCT, 0}, { "overbrace", TOVERBRACE, MS_OVERBRACE, TGPRODUCT, 5}, { "overline", TOVERLINE, '\0', TGATTRIBUT, 5}, { "overstrike", TOVERSTRIKE, '\0', TGATTRIBUT, 5}, { "owns", TNI, MS_NI, TGRELATION, 0}, { "parallel", TPARALLEL, MS_DLINE, TGRELATION, 0}, { "partial", TPARTIAL, MS_PARTIAL, TGSTANDALONE, 5 }, { "phantom", TPHANTOM, '\0', TGFONTATTR, 5}, { "plusminus", TPLUSMINUS, MS_PLUSMINUS, TGUNOPER | TGSUM, 5}, { "prod", TPROD, MS_PROD, TGOPER, 5}, { "prop", TPROP, MS_PROP, TGRELATION, 0}, { "rangle", TRANGLE, MS_RANGLE, TGRBRACES, 0}, //! 0 to terminate expression { "rbrace", TRBRACE, MS_RBRACE, TGRBRACES, 0}, // { "rceil", TRCEIL, MS_RCEIL, TGRBRACES, 0}, // { "rdbracket", TRDBRACKET, MS_RDBRACKET, TGRBRACES, 0}, // { "rdline", TRDLINE, MS_DLINE, TGRBRACES, 0}, // { "red", TRED, '\0', TGCOLOR, 0}, { "rfloor", TRFLOOR, MS_RFLOOR, TGRBRACES, 0}, //! 0 to terminate expression { "right", TRIGHT, '\0', 0, 0}, { "rightarrow" , TRIGHTARROW, MS_RIGHTARROW, TGSTANDALONE, 5}, { "rline", TRLINE, MS_LINE, TGRBRACES, 0}, //! 0 to terminate expression { "rsub", TRSUB, '\0', TGPOWER, 0}, { "rsup", TRSUP, '\0', TGPOWER, 0}, { "sans", TSANS, '\0', TGFONT, 0}, { "serif", TSERIF, '\0', TGFONT, 0}, { "setC" , TSETC, MS_SETC, TGSTANDALONE, 5}, { "setN" , TSETN, MS_SETN, TGSTANDALONE, 5}, { "setQ" , TSETQ, MS_SETQ, TGSTANDALONE, 5}, { "setR" , TSETR, MS_SETR, TGSTANDALONE, 5}, { "setZ" , TSETZ, MS_SETZ, TGSTANDALONE, 5}, { "setminus", TBACKSLASH, MS_BACKSLASH, TGPRODUCT, 0 }, { "sim", TSIM, MS_SIM, TGRELATION, 0}, { "simeq", TSIMEQ, MS_SIMEQ, TGRELATION, 0}, { "sin", TSIN, '\0', TGFUNCTION, 5}, { "sinh", TSINH, '\0', TGFUNCTION, 5}, { "size", TSIZE, '\0', TGFONTATTR, 5}, { "slash", TSLASH, MS_SLASH, TGPRODUCT, 0 }, { "sqrt", TSQRT, MS_SQRT, TGUNOPER, 5}, { "stack", TSTACK, '\0', 0, 5}, { "sub", TRSUB, '\0', TGPOWER, 0}, { "subset", TSUBSET, MS_SUBSET, TGRELATION, 0}, { "subseteq", TSUBSETEQ, MS_SUBSETEQ, TGRELATION, 0}, { "sum", TSUM, MS_SUM, TGOPER, 5}, { "sup", TRSUP, '\0', TGPOWER, 0}, { "supset", TSUPSET, MS_SUPSET, TGRELATION, 0}, { "supseteq", TSUPSETEQ, MS_SUPSETEQ, TGRELATION, 0}, { "tan", TTAN, '\0', TGFUNCTION, 5}, { "tanh", TTANH, '\0', TGFUNCTION, 5}, { "tilde", TTILDE, MS_TILDE, TGATTRIBUT, 5}, { "times", TTIMES, MS_TIMES, TGPRODUCT, 0}, { "to", TTO, '\0', TGLIMIT, 0}, { "toward", TTOWARD, MS_RIGHTARROW, TGRELATION, 0}, { "transl", TTRANSL, MS_TRANSL, TGRELATION, 0}, { "transr", TTRANSR, MS_TRANSR, TGRELATION, 0}, { "underbrace", TUNDERBRACE, MS_UNDERBRACE, TGPRODUCT, 5}, { "underline", TUNDERLINE, '\0', TGATTRIBUT, 5}, { "union", TUNION, MS_UNION, TGSUM, 0}, { "uoper", TUOPER, '\0', TGUNOPER, 5}, { "uparrow" , TUPARROW, MS_UPARROW, TGSTANDALONE, 5}, { "vec", TVEC, MS_VEC, TGATTRIBUT, 5}, { "white", TWHITE, '\0', TGCOLOR, 0}, { "widebslash", TWIDEBACKSLASH, MS_BACKSLASH, TGPRODUCT, 0 }, { "widehat", TWIDEHAT, MS_HAT, TGATTRIBUT, 5}, { "widetilde", TWIDETILDE, MS_TILDE, TGATTRIBUT, 5}, { "wideslash", TWIDESLASH, MS_SLASH, TGPRODUCT, 0 }, { "widevec", TWIDEVEC, MS_VEC, TGATTRIBUT, 5}, { "wp" , TWP, MS_WP, TGSTANDALONE, 5}, { "yellow", TYELLOW, '\0', TGCOLOR, 0}, { "[", TLBRACKET, MS_LBRACKET, TGLBRACES, 5}, //! 5 to continue expression { "\\", TESCAPE, '\0', 0, 5}, { "]", TRBRACKET, MS_RBRACKET, TGRBRACES, 0}, //! 0 to terminate expression { "^", TRSUP, '\0', TGPOWER, 0}, { "_", TRSUB, '\0', TGPOWER, 0}, { "`", TSBLANK, '\0', TGBLANK, 5}, { "{", TLGROUP, MS_LBRACE, 0, 5}, //! 5 to continue expression { "|", TOR, MS_OR, TGSUM, 0}, { "}", TRGROUP, MS_RBRACE, 0, 0}, //! 0 to terminate expression { "~", TBLANK, '\0', TGBLANK, 5}, { "", TEND, '\0', 0, 0} }; /////////////////////////////////////////////////////////////////////////// BOOL SmParser::IsDelimiter(sal_Unicode cChar) // returns 'TRUE' iff cChar is '\0' or a delimeter { if(!cChar) return TRUE; // check if 'cChar' is in the delimeter table const sal_Unicode *pDelim = &aDelimiterTable[0]; for ( ; *pDelim != 0; pDelim++) if (*pDelim == cChar) break; return (*pDelim != 0); } #ifdef NOT_USED const xub_Unicode * SmParser::GetText(XubString &rText, const xub_Unicode *pPos) // put text between current and next '"' in 'rText'. With '\' quoted // chars will be inserted without '\'. Thus type '\"' to get '"' in // the text and '\\' for '\'. ('pPos' has to point to start of the // string (ie the opening '"' char).) { const xub_Unicode *pEnd = (const xub_Unicode *) BufferString + BufferString.Len(); DBG_ASSERT(*pPos == '"', "Dies ist kein Text"); // get string content without quoting '\' rText.Erase(); pPos++; while (pPos < pEnd && *pPos != '"') if (*pPos != '\\' || ++pPos < pEnd) rText += *pPos++; else { Error(PE_UNEXPECTED_ENDOFINPUT); return pEnd; } // check for irregular end of string if (pPos == pEnd) { Error(PE_UNEXPECTED_ENDOFINPUT); return pEnd; } // return pointer to char after closing '"' return pPos + 1; } #endif const xub_Unicode * SmParser::SkipWhiteSpaces(const xub_Unicode *pPos, USHORT &nRow, USHORT &nCol) // skip white-spaces while keeping track of actual row and column. { DBG_ASSERT(pPos , "NULL pointer"); while ( *pPos != '\0' && IsWhiteSpace(*pPos)) { if (*pPos == CharLineEnd) { nRow += 1; nCol = 0; } nCol++; pPos++; } return pPos; } const xub_Unicode * SmParser::SkipComment(const xub_Unicode *pPos, USHORT &nRow, USHORT &nCol) // skip rest of line if comment-start ('%%') is encountered. // return pointer to char after line-end or (in case of end of buffer) // return pointer to the terminating '\0' char. { DBG_ASSERT(pPos, "NULL pointer"); if (!IsComment(pPos)) return pPos; // skip rest of line const xub_Unicode *pStart = pPos; while (*pPos != '\0' && *pPos != CharLineEnd) pPos++; if (*pPos == CharLineEnd) { nRow += 1; nCol = 0; } else nCol += pPos - pStart; return *pPos == '\0' ? pPos : pPos + 1; } void SmParser::Insert(const XubString &rText, USHORT nPos) { BufferString.Insert(rText, nPos); xub_StrLen nLen = rText.Len(); BufferIndex += nLen; nTokenIndex += nLen; } void SmParser::NextToken() { //xub_Unicode *pBuffer = &BufferString[BufferIndex]; const sal_Unicode *pBuffer = BufferString.GetBuffer(); pBuffer += BufferIndex; xub_StrLen nLen = BufferString.Len(); // skip comments and white-spaces const sal_Unicode *pStart; do { pStart = pBuffer; pBuffer = (xub_Unicode *) SkipWhiteSpaces(pStart, Row, Column); pBuffer = (xub_Unicode *) SkipComment(pBuffer, Row, Column); } while (pStart != pBuffer); BufferIndex = pBuffer - BufferString.GetBuffer(); // set index of current token nTokenIndex = BufferIndex; // check for end of input if ((BufferIndex >= nLen) || (*pBuffer == '\0')) { CurToken.eType = TEND; CurToken.cMathChar = '\0'; CurToken.nGroup = 0; CurToken.nLevel = 0; CurToken.aText.Erase(); CurToken.nRow = Row; CurToken.nCol = Column; return; } // table lookup int l = 0; int h = sizeof(aTokenTable) / sizeof(aTokenTable[0]); while (l < h-1) { int i = l; const sal_Char *pIdentI = aTokenTable[i].pIdent; USHORT n = strlen(pIdentI); if (n != 0 && strnccmp(BufferString, BufferIndex, pIdentI, n)) { int j = i; DBG_ASSERT(j + 1 < h, "Sm : index out of range"); const sal_Char *pIdentJ = aTokenTable[j + 1].pIdent; int m = strlen(pIdentJ); BOOL u = strnccmp(BufferString, BufferIndex, pIdentJ, m); BOOL bReCalcLen = FALSE; while ( ( u || strnccmp(BufferString, BufferIndex, pIdentJ, n) ) && (++j < h - 1) ) { if (u) { i = j; bReCalcLen = TRUE; } pIdentJ = aTokenTable[j + 1].pIdent; m = strlen(pIdentJ); u = strnccmp(BufferString, BufferIndex, pIdentJ, m); } if (bReCalcLen) n = strlen(aTokenTable[i].pIdent); const SmTokenTableEntry &rTokenI = aTokenTable[i]; const sal_Unicode *pChar = BufferString.GetBuffer() + BufferIndex + n - 1; if (IsDelimiter(*pChar) || IsDelimiter(*(pChar + 1))) { CurToken.eType = rTokenI.eType; CurToken.cMathChar = rTokenI.cMathChar; CurToken.nGroup = rTokenI.nGroup; CurToken.nLevel = rTokenI.nLevel; CurToken.aText.AssignAscii( rTokenI.pIdent ); CurToken.nRow = Row; CurToken.nCol = Column; Column += n; BufferIndex += n; return; } } l++; } // end of table lookup if (*pBuffer == '"') // text token { CurToken.eType = TTEXT; CurToken.cMathChar = '\0'; CurToken.nGroup = 0; CurToken.nLevel = 5; CurToken.aText.Erase(); CurToken.nRow = Row; CurToken.nCol = Column + 1; BufferIndex++; pBuffer ++; Column++; while ((*pBuffer != '"') && (*pBuffer != '\0')) { if ((*pBuffer == '\n') || (*pBuffer == '\r')) { if (*pBuffer == '\n') { CurToken.aText += ' '; Row += 1; } else Column = 1; } else CurToken.aText += *pBuffer; Column++; BufferIndex++; pBuffer ++; } if (*pBuffer == '"') { BufferIndex++; pBuffer ++; Column++; } return; } USHORT n; for (n = 1; !IsDelimiter(BufferString.GetChar(BufferIndex + n)); n++) ; if (*pBuffer == '%') { CurToken.eType = TSPECIAL; CurToken.cMathChar = '\0'; CurToken.nGroup = 0; CurToken.nLevel = 5; CurToken.aText = XubString(BufferString, BufferIndex + 1, n - 1); CurToken.nRow = Row; CurToken.nCol = Column + 1; BufferIndex += n; pBuffer++; Column += n; return; } USHORT i; for (i = 0; (i < n) && (isdigit(*pBuffer) || (*pBuffer == '.') || (*pBuffer == ',')); i++) pBuffer ++; CurToken.eType = (i < n) ? TIDENT : TNUMBER; CurToken.cMathChar = '\0'; CurToken.nGroup = 0; CurToken.nLevel = 5; CurToken.aText = XubString(BufferString, BufferIndex, n); CurToken.nRow = Row; CurToken.nCol = Column; BufferIndex += n; Column += n; } //////////////////////////////////////// // grammar // void SmParser::Table() { SmNodeArray LineArray; Line(); while (CurToken.eType == TNEWLINE) { NextToken(); Line(); } if (CurToken.eType != TEND) Error(PE_UNEXPECTED_CHAR); USHORT n = NodeStack.Count(); LineArray.SetSize(n); for (USHORT i = 0; i < n; i++) LineArray.Put(n - (i + 1), NodeStack.Pop()); SmStructureNode *pSNode = new SmTableNode(CurToken); pSNode->SetSubNodes(LineArray); NodeStack.Push(pSNode); } void SmParser::Align() // parse alignment info (if any), then go on with rest of expression { SmStructureNode *pSNode = 0; BOOL bNeedGroupClose = FALSE; if (TokenInGroup(TGALIGN)) { if (IsConvert40To50()) // encapsulate expression to be aligned in group braces // (here group-open brace) { Insert('{', GetTokenIndex()); bNeedGroupClose = TRUE; // get first valid align statement in sequence // (the dominant one in 4.0) and erase all others (especially old // discarded tokens) from command string. while (TokenInGroup(TGALIGN)) { if (TokenInGroup(TGDISCARDED) || pSNode) { BufferIndex = GetTokenIndex(); BufferString.Erase(BufferIndex, CurToken.aText.Len()); } else pSNode = new SmAlignNode(CurToken); NextToken(); } } else { pSNode = new SmAlignNode(CurToken); NextToken(); // allow for just one align statement in 5.0 if (!IsConvert40To50() && TokenInGroup(TGALIGN)) { Error(PE_DOUBLE_ALIGN); return; } } } Expression(); if (bNeedGroupClose) Insert('}', GetTokenIndex()); if (pSNode) { pSNode->SetSubNodes(NodeStack.Pop(), 0); NodeStack.Push(pSNode); } } void SmParser::Line() { USHORT n = 0; SmNodeArray ExpressionArray; ExpressionArray.SetSize(n); // start with single expression that may have an alignment statement // (and go on with expressions that must not have alignment // statements in 'while' loop below. See also 'Expression()'.) if (CurToken.eType != TEND && CurToken.eType != TNEWLINE) { Align(); ExpressionArray.SetSize(++n); ExpressionArray.Put(n - 1, NodeStack.Pop()); } while (CurToken.eType != TEND && CurToken.eType != TNEWLINE) { if (!IsConvert40To50()) Expression(); else Align(); ExpressionArray.SetSize(++n); ExpressionArray.Put(n - 1, NodeStack.Pop()); } SmStructureNode *pSNode = new SmLineNode(CurToken); pSNode->SetSubNodes(ExpressionArray); NodeStack.Push(pSNode); } void SmParser::Expression() { USHORT n = 0; SmNodeArray RelationArray; RelationArray.SetSize(n); Relation(); RelationArray.SetSize(++n); RelationArray.Put(n - 1, NodeStack.Pop()); while (CurToken.nLevel >= 4) { Relation(); RelationArray.SetSize(++n); RelationArray.Put(n - 1, NodeStack.Pop()); } SmStructureNode *pSNode = new SmExpressionNode(CurToken); pSNode->SetSubNodes(RelationArray); NodeStack.Push(pSNode); } void SmParser::Relation() { Sum(); while (TokenInGroup(TGRELATION)) { SmStructureNode *pSNode = new SmBinHorNode(CurToken); SmNode *pFirst = NodeStack.Pop(); OpSubSup(); SmNode *pSecond = NodeStack.Pop(); Sum(); pSNode->SetSubNodes(pFirst, pSecond, NodeStack.Pop()); NodeStack.Push(pSNode); } } void SmParser::Sum() { Product(); while (TokenInGroup(TGSUM)) { SmStructureNode *pSNode = new SmBinHorNode(CurToken); SmNode *pFirst = NodeStack.Pop(); OpSubSup(); SmNode *pSecond = NodeStack.Pop(); Product(); pSNode->SetSubNodes(pFirst, pSecond, NodeStack.Pop()); NodeStack.Push(pSNode); } } void SmParser::Product() { Power(); while (TokenInGroup(TGPRODUCT)) { SmStructureNode *pSNode; SmNode *pFirst = NodeStack.Pop(), *pOper; BOOL bSwitchArgs = FALSE; SmTokenType eType = CurToken.eType; switch (eType) { case TOVER: pSNode = new SmBinVerNode(CurToken); pOper = new SmRectangleNode(CurToken); NextToken(); break; case TBOPER: pSNode = new SmBinHorNode(CurToken); NextToken(); GlyphSpecial(); pOper = NodeStack.Pop(); break; case TOVERBRACE : case TUNDERBRACE : pSNode = new SmVerticalBraceNode(CurToken); #ifdef USE_POLYGON pOper = new SmPolygonNode(CurToken); #else pOper = new SmMathSymbolNode(CurToken); #endif NextToken(); break; case TWIDEBACKSLASH: case TWIDESLASH: { SmBinDiagonalNode *pSTmp = new SmBinDiagonalNode(CurToken); pSTmp->SetAscending(eType == TWIDESLASH); pSNode = pSTmp; pOper = new SmPolyLineNode(CurToken); NextToken(); bSwitchArgs =TRUE; break; } default: pSNode = new SmBinHorNode(CurToken); OpSubSup(); pOper = NodeStack.Pop(); } Power(); if (bSwitchArgs) //! vgl siehe SmBinDiagonalNode::Arrange pSNode->SetSubNodes(pFirst, NodeStack.Pop(), pOper); else pSNode->SetSubNodes(pFirst, pOper, NodeStack.Pop()); NodeStack.Push(pSNode); } } void SmParser::SubSup(ULONG nActiveGroup) { DBG_ASSERT(nActiveGroup == TGPOWER || nActiveGroup == TGLIMIT, "Sm: falsche Tokengruppe"); if (!TokenInGroup(nActiveGroup)) // already finish return; SmSubSupNode *pNode = new SmSubSupNode(CurToken); //! Of course 'CurToken' ist just the first sub-/supscript token. //! It should be of no further interest. The positions of the //! sub-/supscripts will be identified by the corresponding subnodes //! index in the 'aSubNodes' array (enum value from 'SmSubSup'). pNode->SetUseLimits(nActiveGroup == TGLIMIT); // initialize subnodes array SmNodeArray aSubNodes; aSubNodes.SetSize(1 + SUBSUP_NUM_ENTRIES); aSubNodes.Put(0, NodeStack.Pop()); for (int i = 1; i < aSubNodes.GetSize(); i++) aSubNodes.Put(i, NULL); // process all sub-/supscripts int nIndex; while (TokenInGroup(nActiveGroup)) { SmTokenType eType (CurToken.eType); // skip sub-/supscript token NextToken(); // get sub-/supscript node on top of stack if (eType == TFROM || eType == TTO) { // parse limits in old 4.0 and 5.0 style Relation(); } else Term(); switch (eType) { case TRSUB : nIndex = (int) RSUB; break; case TRSUP : nIndex = (int) RSUP; break; case TFROM : case TCSUB : nIndex = (int) CSUB; break; case TTO : case TCSUP : nIndex = (int) CSUP; break; case TLSUB : nIndex = (int) LSUB; break; case TLSUP : nIndex = (int) LSUP; break; default : DBG_ASSERT(FALSE, "Sm: unbekannter Fall"); } nIndex++; DBG_ASSERT(1 <= nIndex && nIndex <= 1 + SUBSUP_NUM_ENTRIES, "SmParser::Power() : sub-/supscript index falsch") // set sub-/supscript if not already done if (aSubNodes.Get(nIndex) != NULL) Error(PE_DOUBLE_SUBSUPSCRIPT); aSubNodes.Put(nIndex, NodeStack.Pop()); } pNode->SetSubNodes(aSubNodes); NodeStack.Push(pNode); } void SmParser::OpSubSup() { // push operator symbol NodeStack.Push(new SmMathSymbolNode(CurToken)); // skip operator token NextToken(); // get sub- supscripts if any if (TokenInGroup(TGPOWER)) SubSup(TGPOWER); } void SmParser::Power() { // get body for sub- supscripts on top of stack Term(); SubSup(TGPOWER); } void SmParser::Blank() { DBG_ASSERT(TokenInGroup(TGBLANK), "Sm : falsches Token"); SmBlankNode *pBlankNode = new SmBlankNode(CurToken); while (TokenInGroup(TGBLANK)) { pBlankNode->IncreaseBy(CurToken); NextToken(); } // Blanks am Zeilenende ignorieren wenn die entsprechende Option gesetzt ist if (CurToken.eType == TNEWLINE || CurToken.eType == TEND && SM_MOD1()->GetConfig()->IsNoRightSpaces()) pBlankNode->Clear(); NodeStack.Push(pBlankNode); } void SmParser::Term() { switch (CurToken.eType) { case TESCAPE : Escape(); break; case TLGROUP : NextToken(); // allow for empty group if (CurToken.eType == TRGROUP) { SmStructureNode *pSNode = new SmExpressionNode(CurToken); pSNode->SetSubNodes(NULL, NULL); NodeStack.Push(pSNode); NextToken(); } else // go as usual { Align(); if (CurToken.eType != TRGROUP) Error(PE_RGROUP_EXPECTED); else { NextToken(); } } break; case TLEFT : Brace(); break; case TBLANK : case TSBLANK : Blank(); break; case TTEXT : NodeStack.Push(new SmTextNode(CurToken, FNT_TEXT)); NextToken(); break; case TIDENT : NodeStack.Push(new SmTextNode(CurToken, FNT_VARIABLE)); NextToken(); break; case TNUMBER : NodeStack.Push(new SmTextNode(CurToken, FNT_NUMBER)); NextToken(); break; case TLEFTARROW : case TRIGHTARROW : case TUPARROW : case TDOWNARROW : case TSETN : case TSETZ : case TSETQ : case TSETR : case TSETC : case THBAR : case TLAMBDABAR : case TCIRC : case TDRARROW : case TDLARROW : case TDLRARROW : case TBACKEPSILON : case TALEPH : case TIM : case TRE : case TWP : case TEMPTYSET : case TINFINITY : case TEXISTS : case TFORALL : case TPARTIAL : case TNABLA : case TTOWARD : case TDOTSAXIS : case TDOTSDIAG : case TDOTSDOWN : case TDOTSLOW : case TDOTSUP : case TDOTSVERT : NodeStack.Push(new SmMathSymbolNode(CurToken)); NextToken(); break; case TPLACE: NodeStack.Push(new SmPlaceNode(CurToken)); NextToken(); break; case TSPECIAL: Special(); break; case TBINOM: Binom(); break; case TSTACK: Stack(); break; case TMATRIX: Matrix(); break; default: if (TokenInGroup(TGLBRACES)) { Brace(); } else if (TokenInGroup(TGOPER)) { Operator(); } else if (TokenInGroup(TGUNOPER)) { UnOper(); } else if ( TokenInGroup(TGATTRIBUT) || TokenInGroup(TGFONTATTR)) { SmStructureNodeArray aArray; BOOL bIsAttr; USHORT n = 0; while ((bIsAttr = TokenInGroup(TGATTRIBUT)) || TokenInGroup(TGFONTATTR)) { aArray.SetSize(n + 1); if (bIsAttr) Attribut(); else FontAttribut(); // check if casting in following line is ok DBG_ASSERT(!NodeStack.Top()->IsVisible(), "Sm : Ooops..."); aArray.Put(n, (SmStructureNode *) NodeStack.Pop()); n++; } Power(); SmNode *pFirstNode = NodeStack.Pop(); while (n > 0) { aArray.Get(n - 1)->SetSubNodes(0, pFirstNode); pFirstNode = aArray.Get(n - 1); n--; } NodeStack.Push(pFirstNode); } else if (TokenInGroup(TGFUNCTION)) { if (!IsConvert40To50()) { Function(); } else // encapsulate old 4.0 style parsing in braces { // insert opening brace Insert('{', GetTokenIndex()); // // parse in 4.0 style // Function(); SmNode *pFunc = NodeStack.Pop(); if (CurToken.eType == TLPARENT) { Term(); } else { Align(); } // insert closing brace Insert('}', GetTokenIndex()); SmStructureNode *pSNode = new SmExpressionNode(pFunc->GetToken()); pSNode->SetSubNodes(pFunc, NodeStack.Pop()); NodeStack.Push(pSNode); } } else Error(PE_UNEXPECTED_CHAR); } } void SmParser::Escape() { NextToken(); xub_Unicode cChar; switch (CurToken.eType) { case TLPARENT : cChar = MS_LPARENT; break; case TRPARENT : cChar = MS_RPARENT; break; case TLBRACKET : cChar = MS_LBRACKET; break; case TRBRACKET : cChar = MS_RBRACKET; break; case TLBRACE : case TLGROUP : cChar = MS_LBRACE; break; case TRBRACE : case TRGROUP : cChar = MS_RBRACE; break; case TLANGLE : cChar = MS_LANGLE; break; case TRANGLE : cChar = MS_RANGLE; break; case TLCEIL : cChar = MS_LCEIL; break; case TRCEIL : cChar = MS_RCEIL; break; case TLFLOOR : cChar = MS_LFLOOR; break; case TRFLOOR : cChar = MS_RFLOOR; break; case TLLINE : case TRLINE : cChar = MS_LINE; break; case TLDLINE : case TRDLINE : cChar = MS_DLINE; break; default: Error(PE_UNEXPECTED_TOKEN); } SmNode *pNode = new SmMathSymbolNode(CurToken); NodeStack.Push(pNode); NextToken(); } void SmParser::Operator() { if (TokenInGroup(TGOPER)) { SmStructureNode *pSNode = new SmOperNode(CurToken); // put operator on top of stack Oper(); if (TokenInGroup(TGLIMIT) || TokenInGroup(TGPOWER)) SubSup(CurToken.nGroup); SmNode *pOperator = NodeStack.Pop(); // get argument Power(); pSNode->SetSubNodes(pOperator, NodeStack.Pop()); NodeStack.Push(pSNode); } } void SmParser::Oper() { SmTokenType eType (CurToken.eType); SmNode *pNode = NULL; switch (eType) { case TSUM : case TPROD : case TCOPROD : case TINT : case TIINT : case TIIINT : case TLINT : case TLLINT : case TLLLINT : pNode = new SmMathSymbolNode(CurToken); break; case TLIM : case TLIMSUP : case TLIMINF : { const sal_Char* pLim = 0; switch (eType) { case TLIM : pLim = "lim"; break; case TLIMSUP : pLim = "lim sup"; break; case TLIMINF : pLim = "lim inf"; break; } if( pLim ) CurToken.aText.AssignAscii( pLim ); pNode = new SmTextNode(CurToken, FNT_TEXT); } break; case TOVERBRACE : case TUNDERBRACE : #ifdef USE_POLYGON pNode = new SmPolygonNode(CurToken); #else pNode = new SmMathSymbolNode(CurToken); #endif break; case TOPER : NextToken(); DBG_ASSERT(CurToken.eType == TSPECIAL, "Sm: falsches Token"); pNode = new SmGlyphSpecialNode(CurToken); break; default : DBG_ASSERT(0, "Sm: unbekannter Fall"); } NodeStack.Push(pNode); NextToken(); } void SmParser::UnOper() { DBG_ASSERT(TokenInGroup(TGUNOPER), "Sm: falsches Token"); SmToken aNodeToken = CurToken; SmTokenType eType = CurToken.eType; BOOL bIsPostfix = eType == TFACT; SmStructureNode *pSNode; SmNode *pOper, *pExtra = 0, *pArg; switch (eType) { case TABS : case TSQRT : NextToken(); break; case TNROOT : NextToken(); Power(); pExtra = NodeStack.Pop(); break; case TUOPER : NextToken(); GlyphSpecial(); pOper = NodeStack.Pop(); break; case TPLUS : case TMINUS : case TPLUSMINUS : case TMINUSPLUS : case TNEG : case TFACT : OpSubSup(); pOper = NodeStack.Pop(); break; default : Error(PE_UNOPER_EXPECTED); } // get argument Power(); pArg = NodeStack.Pop(); if (eType == TABS) { pSNode = new SmBraceNode(aNodeToken); pSNode->SetScaleMode(SCALE_HEIGHT); // build nodes for left & right lines // (text, group, level of the used token are of no interrest here) // we'll use row & column of the keyword for abs aNodeToken.eType = TABS; // aNodeToken.cMathChar = MS_LINE; #ifdef USE_POLYGON SmNode* pLeft = new SmPolygonNode(aNodeToken); #else SmNode* pLeft = new SmMathSymbolNode(aNodeToken); #endif // aNodeToken.cMathChar = MS_LINE; #ifdef USE_POLYGON SmNode* pRight = new SmPolygonNode(aNodeToken); #else SmNode* pRight = new SmMathSymbolNode(aNodeToken); #endif pSNode->SetSubNodes(pLeft, pArg, pRight); } else if (eType == TSQRT || eType == TNROOT) { pSNode = new SmRootNode(aNodeToken); pOper = new SmRootSymbolNode(aNodeToken); pSNode->SetSubNodes(pExtra, pOper, pArg); } else { pSNode = new SmUnHorNode(aNodeToken); if (bIsPostfix) pSNode->SetSubNodes(pArg, pOper); else // prefix operator pSNode->SetSubNodes(pOper, pArg); } NodeStack.Push(pSNode); } void SmParser::Attribut() { DBG_ASSERT(TokenInGroup(TGATTRIBUT), "Sm: falsche Tokengruppe"); SmStructureNode *pSNode = new SmAttributNode(CurToken); SmNode *pAttr; SmScaleMode eScaleMode = SCALE_NONE; // get appropriate node for the attribut itself switch (CurToken.eType) { case TUNDERLINE : case TOVERLINE : case TOVERSTRIKE : pAttr = new SmRectangleNode(CurToken); eScaleMode = SCALE_WIDTH; break; case TWIDEVEC : case TWIDEHAT : case TWIDETILDE : #ifdef USE_POLYGON pAttr = new SmPolygonNode(CurToken); #else pAttr = new SmMathSymbolNode(CurToken); #endif eScaleMode = SCALE_WIDTH; break; default : pAttr = new SmMathSymbolNode(CurToken); } NextToken(); pSNode->SetSubNodes(pAttr, 0); pSNode->SetScaleMode(eScaleMode); NodeStack.Push(pSNode); } void SmParser::FontAttribut() { DBG_ASSERT(TokenInGroup(TGFONTATTR), "Sm: falsche Tokengruppe"); switch (CurToken.eType) { case TITALIC : case TNITALIC : case TBOLD : case TNBOLD : case TPHANTOM : NodeStack.Push(new SmFontNode(CurToken)); NextToken(); break; case TSIZE : FontSize(); break; case TFONT : Font(); break; case TCOLOR : Color(); break; default : DBG_ASSERT(0, "Sm: unbekannter Fall"); } } void SmParser::Color() { DBG_ASSERT(CurToken.eType == TCOLOR, "Sm : Ooops..."); // last color rules, get that one SmToken aToken; do { NextToken(); if (TokenInGroup(TGCOLOR)) { aToken = CurToken; NextToken(); } else Error(PE_COLOR_EXPECTED); } while (CurToken.eType == TCOLOR); NodeStack.Push(new SmFontNode(aToken)); } void SmParser::Font() { DBG_ASSERT(CurToken.eType == TFONT, "Sm : Ooops..."); // last font rules, get that one SmToken aToken; do { NextToken(); if (TokenInGroup(TGFONT)) { aToken = CurToken; NextToken(); } else Error(PE_FONT_EXPECTED); } while (CurToken.eType == TFONT); NodeStack.Push(new SmFontNode(aToken)); } BOOL lcl_IsNumber(const UniString& rText) { BOOL bPoint = FALSE; const sal_Unicode* pBuffer = rText.GetBuffer(); for(xub_StrLen nPos = 0; nPos < rText.Len(); nPos++, pBuffer++) { const sal_Unicode cChar = *pBuffer; if(cChar == '.') { if(bPoint) return FALSE; else bPoint = TRUE; } else if ( (cChar < 48) || (cChar > 57) ) return FALSE; } return TRUE; } void SmParser::FontSize() { DBG_ASSERT(CurToken.eType == TSIZE, "Sm : Ooops..."); USHORT Type; SmFontNode *pFontNode = new SmFontNode(CurToken); NextToken(); switch (CurToken.eType) { case TNUMBER: Type = FNTSIZ_ABSOLUT; break; case TPLUS: Type = FNTSIZ_PLUS; break; case TMINUS: Type = FNTSIZ_MINUS; break; case TMULTIPLY: Type = FNTSIZ_MULTIPLY; break; case TDIVIDEBY: Type = FNTSIZ_DIVIDE; break; default: delete pFontNode; Error(PE_SIZE_EXPECTED); return; } if (Type != FNTSIZ_ABSOLUT) { NextToken(); if (CurToken.eType != TNUMBER) { delete pFontNode; Error(PE_SIZE_EXPECTED); return; } } // get number argument double fTmp; Fraction aValue; if(lcl_IsNumber(CurToken.aText) && sscanf(ByteString(CurToken.aText, RTL_TEXTENCODING_ASCII_US).GetBuffer(), "%lf", &fTmp) == 1) aValue = fTmp; NextToken(); pFontNode->SetSizeParameter(aValue, Type); NodeStack.Push(pFontNode); } void SmParser::Brace() { DBG_ASSERT(CurToken.eType == TLEFT || TokenInGroup(TGLBRACES), "Sm: kein Klammer Ausdruck"); SmStructureNode *pSNode = new SmBraceNode(CurToken); SmNode *pBody = 0, *pLeft = 0, *pRight = 0; SmScaleMode eScaleMode = SCALE_NONE; SmParseError eError = PE_NONE; if (CurToken.eType == TLEFT) { NextToken(); eScaleMode = SCALE_HEIGHT; // check for left bracket if (TokenInGroup(TGLBRACES) || TokenInGroup(TGRBRACES)) { #ifdef USE_POLYGON pLeft = new SmPolygonNode(CurToken); #else pLeft = new SmMathSymbolNode(CurToken); #endif NextToken(); Bracebody(TRUE); pBody = NodeStack.Pop(); if (CurToken.eType == TRIGHT) { NextToken(); // check for right bracket if (TokenInGroup(TGLBRACES) || TokenInGroup(TGRBRACES)) { #ifdef USE_POLYGON pRight = new SmPolygonNode(CurToken); #else pRight = new SmMathSymbolNode(CurToken); #endif NextToken(); } else eError = PE_RBRACE_EXPECTED; } else eError = PE_RIGHT_EXPECTED; } else eError = PE_LBRACE_EXPECTED; } else { if (TokenInGroup(TGLBRACES)) { #ifdef USE_POLYGON pLeft = new SmPolygonNode(CurToken); #else pLeft = new SmMathSymbolNode(CurToken); #endif NextToken(); Bracebody(FALSE); pBody = NodeStack.Pop(); SmTokenType eExpectedType; switch (pLeft->GetToken().eType) { case TLPARENT : eExpectedType = TRPARENT; break; case TLBRACKET : eExpectedType = TRBRACKET; break; case TLBRACE : eExpectedType = TRBRACE; break; case TLDBRACKET : eExpectedType = TRDBRACKET; break; case TLLINE : eExpectedType = TRLINE; break; case TLDLINE : eExpectedType = TRDLINE; break; case TLANGLE : eExpectedType = TRANGLE; break; case TLFLOOR : eExpectedType = TRFLOOR; break; case TLCEIL : eExpectedType = TRCEIL; break; default : DBG_ASSERT(0, "Sm: unbekannter Fall"); } if (CurToken.eType == eExpectedType) { #ifdef USE_POLYGON pRight = new SmPolygonNode(CurToken); #else pRight = new SmMathSymbolNode(CurToken); #endif NextToken(); } else eError = PE_PARENT_MISMATCH; } else eError = PE_LBRACE_EXPECTED; } if (eError == PE_NONE) { DBG_ASSERT(pLeft, "Sm: NULL pointer"); DBG_ASSERT(pRight, "Sm: NULL pointer"); pSNode->SetSubNodes(pLeft, pBody, pRight); pSNode->SetScaleMode(eScaleMode); NodeStack.Push(pSNode); } else { delete pSNode; delete pBody; delete pLeft; delete pRight; Error(eError); } } void SmParser::Bracebody(BOOL bIsLeftRight) { SmStructureNode *pBody = new SmBracebodyNode(CurToken); SmNodeArray aNodes; USHORT nNum = 0; // get body if any if (bIsLeftRight) { do { if (CurToken.eType == TMLINE) { #ifdef USE_POLYGON NodeStack.Push(new SmPolygonNode(CurToken)); #else NodeStack.Push(new SmMathSymbolNode(CurToken)); #endif NextToken(); nNum++; } else if (CurToken.eType != TRIGHT) { Align(); nNum++; if (CurToken.eType != TMLINE && CurToken.eType != TRIGHT) Error(PE_RIGHT_EXPECTED); } } while (CurToken.eType != TEND && CurToken.eType != TRIGHT); } else { do { if (CurToken.eType == TMLINE) { #ifdef USE_POLYGON NodeStack.Push(new SmPolygonNode(CurToken)); #else NodeStack.Push(new SmMathSymbolNode(CurToken)); #endif NextToken(); nNum++; } else if (!TokenInGroup(TGRBRACES)) { Align(); nNum++; if (CurToken.eType != TMLINE && !TokenInGroup(TGRBRACES)) Error(PE_RBRACE_EXPECTED); } } while (CurToken.eType != TEND && !TokenInGroup(TGRBRACES)); } // build argument vector in parsing order aNodes.SetSize(nNum); for (USHORT i = 0; i < nNum; i++) aNodes.Put(nNum - 1 - i, NodeStack.Pop()); pBody->SetSubNodes(aNodes); pBody->SetScaleMode(bIsLeftRight ? SCALE_HEIGHT : SCALE_NONE); NodeStack.Push(pBody); } void SmParser::Function() { switch (CurToken.eType) { case TFUNC: NextToken(); // skip "FUNC"-statement // fall through case TSIN : case TCOS : case TTAN : case TCOT : case TASIN : case TACOS : case TATAN : case TACOT : case TSINH : case TCOSH : case TTANH : case TCOTH : case TASINH : case TACOSH : case TATANH : case TACOTH : case TLN : case TLOG : case TEXP : NodeStack.Push(new SmTextNode(CurToken, FNT_FUNCTION)); NextToken(); break; default: Error(PE_FUNC_EXPECTED); } } void SmParser::Binom() { SmNodeArray ExpressionArray; SmStructureNode *pSNode = new SmTableNode(CurToken); NextToken(); Sum(); Sum(); ExpressionArray.SetSize(2); for (int i = 0; i < 2; i++) ExpressionArray.Put(2 - (i + 1), NodeStack.Pop()); pSNode->SetSubNodes(ExpressionArray); NodeStack.Push(pSNode); } void SmParser::Stack() { SmNodeArray ExpressionArray; NextToken(); if (CurToken.eType == TLGROUP) { USHORT n = 0; do { NextToken(); Align(); n++; } while (CurToken.eType == TPOUND); ExpressionArray.SetSize(n); for (USHORT i = 0; i < n; i++) ExpressionArray.Put(n - (i + 1), NodeStack.Pop()); if (CurToken.eType != TRGROUP) Error(PE_RGROUP_EXPECTED); NextToken(); SmStructureNode *pSNode = new SmTableNode(CurToken); pSNode->SetSubNodes(ExpressionArray); NodeStack.Push(pSNode); } else Error(PE_LGROUP_EXPECTED); } void SmParser::Matrix() { SmNodeArray ExpressionArray; NextToken(); if (CurToken.eType == TLGROUP) { USHORT c = 0; do { NextToken(); Align(); c++; } while (CurToken.eType == TPOUND); USHORT r = 1; while (CurToken.eType == TDPOUND) { NextToken(); for (USHORT i = 0; i < c; i++) { Align(); if (i < (c - 1)) { if (CurToken.eType == TPOUND) { NextToken(); } else Error(PE_POUND_EXPECTED); } } r++; } long nRC = r * c; ExpressionArray.SetSize(nRC); for (USHORT i = 0; i < (nRC); i++) ExpressionArray.Put((nRC) - (i + 1), NodeStack.Pop()); if (CurToken.eType != TRGROUP) Error(PE_RGROUP_EXPECTED); NextToken(); SmMatrixNode *pMNode = new SmMatrixNode(CurToken); pMNode->SetSubNodes(ExpressionArray); pMNode->SetRowCol(r, c); NodeStack.Push(pMNode); } else Error(PE_LGROUP_EXPECTED); } void SmParser::Special() { NodeStack.Push(new SmSpecialNode(CurToken)); NextToken(); } void SmParser::GlyphSpecial() { NodeStack.Push(new SmGlyphSpecialNode(CurToken)); NextToken(); } void SmParser::Error(SmParseError eError) { SmStructureNode *pSNode = new SmExpressionNode(CurToken); SmErrorNode *pErr = new SmErrorNode(eError, CurToken); pSNode->SetSubNodes(pErr, 0); //! put a structure node on the stack (instead of the error node itself) //! because sometimes such a node is expected in order to attach some //! subnodes NodeStack.Push(pSNode); AddError(eError, pSNode); NextToken(); } // end gramar SmParser::SmParser() { switch (GetSystemLineEnd()) { case LINEEND_CRLF: case LINEEND_LF: CharLineEnd = '\n'; break; case LINEEND_CR: CharLineEnd = '\r'; break; default: CharLineEnd = '\n'; break; } bConvert40To50 = FALSE; } BOOL SmParser::CheckSyntax(const XubString &rBuffer) { SmErrDescList OldErrorList; BufferString = rBuffer; BufferIndex = nTokenIndex = 0; Row = Column = 1; NodeStack.Clear(); OldErrorList = ErrDescList; ErrDescList.Clear(); NextToken(); Table(); delete NodeStack.Pop(); if (ErrDescList.Count() > 0) { for (int i = 0; i < ErrDescList.Count(); i++) delete ErrDescList.Remove(i); ErrDescList = OldErrorList; return (FALSE); } ErrDescList = OldErrorList; return (TRUE); } SmNode *SmParser::Parse(const XubString &rBuffer) { BufferString = rBuffer; BufferIndex = nTokenIndex = 0; Row = Column = 1; CurError = -1; for (int i = 0; i < ErrDescList.Count(); i++) delete ErrDescList.Remove(i); ErrDescList.Clear(); NodeStack.Clear(); NextToken(); Table(); return NodeStack.Pop(); } USHORT SmParser::AddError(SmParseError Type, SmNode *pNode) { SmErrorDesc *pErrDesc = new SmErrorDesc; pErrDesc->Type = Type; pErrDesc->pNode = pNode; pErrDesc->Text = XubString(SmResId(RID_ERR_IDENT)); USHORT nRID; switch (Type) { case PE_UNEXPECTED_CHAR: nRID = RID_ERR_UNEXPECTEDCHARACTER; break; case PE_LGROUP_EXPECTED: nRID = RID_ERR_LGROUPEXPECTED; break; case PE_RGROUP_EXPECTED: nRID = RID_ERR_RGROUPEXPECTED; break; case PE_LBRACE_EXPECTED: nRID = RID_ERR_LBRACEEXPECTED; break; case PE_RBRACE_EXPECTED: nRID = RID_ERR_RBRACEEXPECTED; break; case PE_FUNC_EXPECTED: nRID = RID_ERR_FUNCEXPECTED; break; case PE_UNOPER_EXPECTED: nRID = RID_ERR_UNOPEREXPECTED; break; case PE_BINOPER_EXPECTED: nRID = RID_ERR_BINOPEREXPECTED; break; case PE_SYMBOL_EXPECTED: nRID = RID_ERR_SYMBOLEXPECTED; break; case PE_IDENTIFIER_EXPECTED: nRID = RID_ERR_IDENTEXPECTED; break; case PE_POUND_EXPECTED: nRID = RID_ERR_POUNDEXPECTED; break; case PE_COLOR_EXPECTED: nRID = RID_ERR_COLOREXPECTED; break; case PE_RIGHT_EXPECTED: nRID = RID_ERR_RIGHTEXPECTED; break; default: nRID = RID_ERR_UNKOWN; } pErrDesc->Text += SmResId(nRID); ErrDescList.Insert(pErrDesc); return ErrDescList.GetPos(pErrDesc); } const SmErrorDesc *SmParser::NextError() { if (ErrDescList.Count()) if (CurError > 0) return ErrDescList.Seek(--CurError); else { CurError = 0; return ErrDescList.Seek(CurError); } else return 0; } const SmErrorDesc *SmParser::PrevError() { if (ErrDescList.Count()) if (CurError < (int) (ErrDescList.Count() - 1)) return ErrDescList.Seek(++CurError); else { CurError = (int) (ErrDescList.Count() - 1); return ErrDescList.Seek(CurError); } else return 0; } const SmErrorDesc *SmParser::GetError(USHORT i) { return (i >= 0 && i < ErrDescList.Count()) ? ErrDescList.Seek(i) : ErrDescList.Seek(CurError); }