Examples with Extension org.matheclipse.core.io.Extension used on opensource projects

Example 1 with Extension

use of org.matheclipse.core.io.Extension in project symja_android_library by axkr.

the class SemanticImport method evaluate.

@Override
public IExpr evaluate(final IAST ast, EvalEngine engine) {
    if (Config.isFileSystemEnabled(engine)) {
        if (!(ast.arg1() instanceof IStringX)) {
            return F.NIL;
        }
        IStringX arg1 = (IStringX) ast.arg1();
        Extension format = Extension.importFilename(arg1.toString());
        String fileName = arg1.toString();
        if (fileName.startsWith("https://") || fileName.startsWith("http://")) {
            return readURL(fileName, format, engine);
        }
        if (format.equals(Extension.CSV) || format.equals(Extension.TSV)) {
            return readFile(fileName, engine);
        }
    }
    return F.NIL;
}

Example 2 with Extension

use of org.matheclipse.core.io.Extension in project symja_android_library by axkr.

the class Import method ofString.

/**
 * Get arbitrary data represented as a Symja expression string
 *
 * @param file
 * @param engine
 * @return
 * @throws IOException
 */
public static IExpr ofString(File file, EvalEngine engine) throws IOException {
    String filename = file.getName();
    Extension extension = Extension.importFilename(filename);
    // Extension extension = filename.extension();
    if (extension.equals(Extension.JPG) || extension.equals(Extension.PNG)) {
        // if (filename.hasExtension("jpg") || filename.hasExtension("png")) {
        return ImageFormat.from(ImageIO.read(file));
    }
    String str = com.google.common.io.Files.asCharSource(file, Charset.defaultCharset()).read();
    AST2Expr ast2Expr = new AST2Expr(engine.isRelaxedSyntax(), engine);
    final Parser parser = new Parser(engine.isRelaxedSyntax(), true);
    final ASTNode node = parser.parse(str);
    return ast2Expr.convert(node);
}

Example 3 with Extension

use of org.matheclipse.core.io.Extension in project symja_android_library by axkr.

the class Export method evaluate.

@Override
public IExpr evaluate(final IAST ast, EvalEngine engine) {
    if (Config.isFileSystemEnabled(engine)) {
        if (!(ast.arg1() instanceof IStringX)) {
            return F.NIL;
        }
        IStringX arg1 = (IStringX) ast.arg1();
        Extension format = Extension.exportFilename(arg1.toString());
        if (ast.size() == 4) {
            if (!(ast.arg3() instanceof IStringX)) {
                return F.NIL;
            }
            // format = ((IStringX) ast.arg3()).toString();
            format = Extension.exportExtension(((IStringX) ast.arg3()).toString());
        }
        IExpr arg2 = ast.arg2();
        try (FileWriter writer = new FileWriter(arg1.toString())) {
            if (arg2 instanceof GraphExpr) {
                graphExport(((GraphExpr<DefaultEdge>) arg2).toData(), writer, format);
                return arg1;
            }
            if (format.equals(Extension.CSV) || format.equals(Extension.TSV)) {
                if (arg2.isDataset()) {
                    ((IASTDataset) arg2).csv(writer);
                    return arg1;
                }
            } else if (format.equals(Extension.TABLE)) {
                int[] dims = arg2.isMatrix();
                if (dims != null) {
                    for (int j = 0; j < dims[0]; j++) {
                        IAST rowList = (IAST) arg2.getAt(j + 1);
                        for (int i = 1; i <= dims[1]; i++) {
                            if (rowList.get(i).isReal()) {
                                writer.append(rowList.get(i).toString());
                            } else {
                                writer.append("\"");
                                writer.append(rowList.get(i).toString());
                                writer.append("\"");
                            }
                            if (i < dims[1]) {
                                writer.append(" ");
                            }
                        }
                        writer.append("\n");
                    }
                    return arg1;
                } else {
                    if (arg2.isList()) {
                    }
                }
            } else if (format.equals(Extension.DAT)) {
                File file = new File(arg1.toString());
                com.google.common.io.Files.write(arg2.toString(), file, Charset.defaultCharset());
                return arg1;
            } else if (format.equals(Extension.WXF)) {
                File file = new File(arg1.toString());
                byte[] bArray = WL.serialize(arg2);
                com.google.common.io.Files.write(bArray, file);
                return arg1;
            }
        } catch (IOException ioe) {
            LOGGER.log(engine.getLogLevel(), "Export: file {} not found!", arg1, ioe);
        } catch (Exception ex) {
            LOGGER.log(engine.getLogLevel(), "Export: file {}", arg1, ex);
        }
    }
    return F.NIL;
}

Example 4 with Extension

use of org.matheclipse.core.io.Extension in project symja_android_library by axkr.

the class ImportString method evaluate.

@Override
public IExpr evaluate(final IAST ast, EvalEngine engine) {
    if (!(ast.arg1() instanceof IStringX)) {
        return F.NIL;
    }
    String str1 = ((IStringX) ast.arg1()).toString();
    Extension format = Extension.TXT;
    if (ast.size() > 2) {
        if (!(ast.arg2() instanceof IStringX)) {
            return F.NIL;
        }
        format = Extension.importExtension(((IStringX) ast.arg2()).toString());
    }
    try {
        switch(format) {
            case JSON:
                return JSONConvert.importJSON(str1);
            case EXPRESSIONJSON:
                return ExpressionJSONConvert.importExpressionJSON(str1);
            case TABLE:
                AST2Expr ast2Expr = new AST2Expr(engine.isRelaxedSyntax(), engine);
                final Parser parser = new Parser(engine.isRelaxedSyntax(), true);
                CSVFormat csvFormat = CSVFormat.RFC4180.withDelimiter(',');
                Iterable<CSVRecord> records = csvFormat.parse(new StringReader(str1));
                IASTAppendable rowList = F.ListAlloc(256);
                for (CSVRecord record : records) {
                    IASTAppendable columnList = F.ListAlloc(record.size());
                    for (String string : record) {
                        final ASTNode node = parser.parse(string);
                        IExpr temp = ast2Expr.convert(node);
                        columnList.append(temp);
                    }
                    rowList.append(columnList);
                }
                return rowList;
            case STRING:
                return ofString(str1, engine);
            case TXT:
                return ofText(str1, engine);
            default:
        }
    } catch (SyntaxError se) {
        LOGGER.log(engine.getLogLevel(), "ImportString: syntax error!", se);
    } catch (Exception ex) {
        LOGGER.log(engine.getLogLevel(), "ImportString", ex);
    }
    return F.NIL;
}

Example 5 with Extension

use of org.matheclipse.core.io.Extension in project symja_android_library by axkr.

the class ExportString method evaluate.

@Override
public IExpr evaluate(final IAST ast, EvalEngine engine) {
    IExpr arg1 = ast.arg1();
    if (!(ast.arg2() instanceof IStringX)) {
        return F.NIL;
    }
    Extension format = Extension.exportExtension(((IStringX) ast.arg2()).toString());
    try (StringWriter writer = new StringWriter()) {
        if (format.equals(Extension.EXPRESSIONJSON)) {
            if (arg1.isNumber() || arg1.isSymbol()) {
                return F.stringx(arg1.toString());
            } else if (arg1.isString()) {
                return F.stringx("'" + arg1.toString() + "'");
            }
            return ExpressionJSONConvert.exportExpressionJSONIStringX(arg1);
        }
        if (arg1 instanceof GraphExpr) {
            graphExport(((GraphExpr<DefaultEdge>) arg1).toData(), writer, format);
            return F.stringx(writer.toString());
        }
        if (format.equals(Extension.CSV) || format.equals(Extension.TSV)) {
            if (arg1.isDataset()) {
                ((IASTDataset) arg1).csv(writer);
                return F.stringx(writer.toString());
            }
        } else if (format.equals(Extension.TABLE)) {
            int[] dims = arg1.isMatrix();
            if (dims != null) {
                for (int j = 0; j < dims[0]; j++) {
                    IAST rowList = (IAST) arg1.getAt(j + 1);
                    for (int i = 1; i <= dims[1]; i++) {
                        if (rowList.get(i).isReal()) {
                            writer.append(rowList.get(i).toString());
                        } else {
                            writer.append("\"");
                            writer.append(rowList.get(i).toString());
                            writer.append("\"");
                        }
                        if (i < dims[1]) {
                            writer.append(" ");
                        }
                    }
                    writer.append("\n");
                }
                return F.stringx(writer.toString());
            } else {
                if (arg1.isList()) {
                }
            }
        // } else if (format.equals(Extension.DAT)) {
        // File file = new File(arg1.toString());
        // com.google.common.io.Files.write(arg2.toString(), file, Charset.defaultCharset());
        // return arg1;
        // } else if (format.equals(Extension.WXF)) {
        // File file = new File(arg1.toString());
        // byte[] bArray = WL.serialize(arg2);
        // com.google.common.io.Files.write(bArray, file);
        // return arg1;
        }
    // } catch (IOException ioe) {
    // return engine.printMessage("ExportString: " + arg1.toString() + " not found!");
    } catch (Exception ex) {
        LOGGER.log(engine.getLogLevel(), "format: {}", arg1, ex);
        return F.NIL;
    }
    return F.NIL;
}