From a521770323eae7dd990118c09d24052e1c798d94 Mon Sep 17 00:00:00 2001 From: Avik Sengupta Date: Thu, 1 Jan 2004 07:51:34 +0000 Subject: [PATCH] bug 25457, formula parser fixes by Peter M Murray sync to head git-svn-id: https://svn.apache.org/repos/asf/jakarta/poi/trunk@353475 13f79535-47bb-0310-9956-ffa450edef68 --- .../apache/poi/hssf/model/FormulaParser.java | 99 +++++++++++++------ .../record/formula/AbstractFunctionPtg.java | 4 +- 2 files changed, 70 insertions(+), 33 deletions(-) diff --git a/src/java/org/apache/poi/hssf/model/FormulaParser.java b/src/java/org/apache/poi/hssf/model/FormulaParser.java index 60515707d6..0f919f85eb 100644 --- a/src/java/org/apache/poi/hssf/model/FormulaParser.java +++ b/src/java/org/apache/poi/hssf/model/FormulaParser.java @@ -80,6 +80,7 @@ import org.apache.poi.hssf.record.formula.*; * @author Andrew C. oliver (acoliver at apache dot org) * @author Eric Ladner (eladner at goldinc dot com) * @author Cameron Riley (criley at ekmail.com) + * @author Peter M. Murray (pete at quantrix dot com) */ public class FormulaParser { @@ -228,13 +229,31 @@ public class FormulaParser { /** Get an Identifier */ private String GetName() { StringBuffer Token = new StringBuffer(); - if (!IsAlpha(look)) { + if (!IsAlpha(look) && look != '\'') { Expected("Name"); } - while (IsAlNum(look)) { - Token = Token.append(Character.toUpperCase(look)); - GetChar(); + if(look == '\'') + { + Match('\''); + boolean done = look == '\''; + while(!done) + { + Token.append(Character.toUpperCase(look)); + GetChar(); + if(look == '\'') + { + Match('\''); + done = look != '\''; + } + } } + else + { + while (IsAlNum(look)) { + Token.append(Character.toUpperCase(look)); + GetChar(); + } + } SkipWhite(); return Token.toString(); } @@ -478,12 +497,18 @@ public class FormulaParser { /** Parse and Translate a Math Factor */ private void Factor() { - if (look == '(' ) { + if (look == '-') + { + Match('-'); + Factor(); + tokens.add(new UnaryMinusPtg()); + } + else if (look == '(' ) { Match('('); Expression(); Match(')'); tokens.add(new ParenthesisPtg()); - } else if (IsAlpha(look)){ + } else if (IsAlpha(look) || look == '\''){ Ident(); } else if(look == '"') { StringLiteral(); @@ -501,26 +526,42 @@ public class FormulaParser { } } - private void StringLiteral() { - Match('"'); - StringBuffer Token = new StringBuffer(); - for(;;) { - if(look == '"') { - GetChar(); - SkipWhite(); //potential white space here since it doesnt matter up to the operator - if(look == '"') - Token.append("\""); - else - break; - } else if(look == 0) { - break; - } else { - Token.append(look); - GetChar(); - } + private void StringLiteral() + { + // Can't use match here 'cuz it consumes whitespace + // which we need to preserve inside the string. + // - pete + // Match('"'); + if (look != '"') + Expected("\""); + else + { + GetChar(); + StringBuffer Token = new StringBuffer(); + for (;;) + { + if (look == '"') + { + GetChar(); + SkipWhite(); //potential white space here since it doesnt matter up to the operator + if (look == '"') + Token.append("\""); + else + break; + } + else if (look == 0) + { + break; + } + else + { + Token.append(look); + GetChar(); + } + } + tokens.add(new StringPtg(Token.toString())); } - tokens.add(new StringPtg(Token.toString())); - } + } /** Recognize and Translate a Multiply */ private void Multiply(){ @@ -590,11 +631,7 @@ public class FormulaParser { /** Parse and Translate an Expression */ private void Expression() { - if (IsAddop(look)) { - EmitLn("CLR D0"); //unaryAdd ptg??? - } else { - Term(); - } + Term(); while (IsAddop(look)) { if (look == '+' ) Add(); else if (look == '-') Subtract(); @@ -725,7 +762,7 @@ end; private void setRootLevelRVA(Node n, int formulaType) { //Pg 16, excelfileformat.pdf @ openoffice.org Ptg p = (Ptg) n.getValue(); - if (formulaType == this.FORMULA_TYPE_NAMEDRANGE) { + if (formulaType == FormulaParser.FORMULA_TYPE_NAMEDRANGE) { if (p.getDefaultOperandClass() == Ptg.CLASS_REF) { setClass(n,Ptg.CLASS_REF); } else { diff --git a/src/java/org/apache/poi/hssf/record/formula/AbstractFunctionPtg.java b/src/java/org/apache/poi/hssf/record/formula/AbstractFunctionPtg.java index cd2660219e..14a6aad115 100644 --- a/src/java/org/apache/poi/hssf/record/formula/AbstractFunctionPtg.java +++ b/src/java/org/apache/poi/hssf/record/formula/AbstractFunctionPtg.java @@ -536,7 +536,7 @@ public abstract class AbstractFunctionPtg extends OperationPtg { functionData[25][0]=new Byte(Ptg.CLASS_VALUE);functionData[25][1]=new byte[] {Ptg.CLASS_VALUE};functionData[25][2]=new Integer(1); functionData[26][0]=new Byte(Ptg.CLASS_VALUE);functionData[26][1]=new byte[] {Ptg.CLASS_VALUE};functionData[26][2]=new Integer(1); functionData[27][0]=new Byte(Ptg.CLASS_VALUE);functionData[27][1]=new byte[] {Ptg.CLASS_VALUE};functionData[27][2]=new Integer(2); - functionData[28][0]=new Byte(Ptg.CLASS_VALUE);functionData[28][1]=new byte[] {Ptg.CLASS_REF};functionData[28][2]=new Integer(-1); + functionData[28][0]=new Byte(Ptg.CLASS_VALUE);functionData[28][1]=new byte[] {Ptg.CLASS_VALUE, Ptg.CLASS_REF};functionData[28][2]=new Integer(-1); functionData[29][0]=new Byte(Ptg.CLASS_VALUE);functionData[29][1]=new byte[] {Ptg.CLASS_REF};functionData[29][2]=new Integer(-1); functionData[30][0]=new Byte(Ptg.CLASS_VALUE);functionData[30][1]=new byte[] {Ptg.CLASS_VALUE};functionData[30][2]=new Integer(2); functionData[31][0]=new Byte(Ptg.CLASS_VALUE);functionData[31][1]=new byte[] {Ptg.CLASS_VALUE};functionData[31][2]=new Integer(3); @@ -571,7 +571,7 @@ public abstract class AbstractFunctionPtg extends OperationPtg { functionData[61][0]=new Byte(Ptg.CLASS_VALUE);functionData[61][1]=new byte[] {Ptg.CLASS_VALUE};functionData[61][2]=new Integer(3); functionData[62][0]=new Byte(Ptg.CLASS_VALUE);functionData[62][1]=new byte[] {Ptg.CLASS_REF};functionData[62][2]=new Integer(-1); functionData[63][0]=new Byte(Ptg.CLASS_VALUE);functionData[63][1]=new byte[] {Ptg.CLASS_REF};functionData[63][2]=new Integer(1); - functionData[64][0]=new Byte(Ptg.CLASS_VALUE);functionData[64][1]=new byte[] {Ptg.CLASS_REF};functionData[64][2]=new Integer(-1); + functionData[64][0]=new Byte(Ptg.CLASS_VALUE);functionData[64][1]=new byte[] {Ptg.CLASS_VALUE, Ptg.CLASS_REF};functionData[64][2]=new Integer(-1); functionData[65][0]=new Byte(Ptg.CLASS_VALUE);functionData[65][1]=new byte[] {Ptg.CLASS_VALUE};functionData[65][2]=new Integer(3); functionData[66][0]=new Byte(Ptg.CLASS_VALUE);functionData[66][1]=new byte[] {Ptg.CLASS_VALUE};functionData[66][2]=new Integer(3); functionData[67][0]=new Byte(Ptg.CLASS_VALUE);functionData[67][1]=new byte[] {Ptg.CLASS_VALUE};functionData[67][2]=new Integer(1); -- 2.39.5