static Grammar GetIncludesGrammar() { if (grammarForIncludes == null) { var fileContent = LoadFromResource(DefaultNamespaceName, "Grammar", "IncludesGrammar1.ebnf"); EbnfStyle style = (EbnfStyle)( (uint)EbnfStyle.Iso14977 //& ~(uint) EbnfStyle.WhitespaceSeparator | (uint)EbnfStyle.EscapeTerminalStrings); EbnfGrammar grammar; try { grammar = new EbnfGrammar(style); grammarForIncludes = grammar.Build(fileContent, "file"); } catch (Exception ex) { Trace.WriteLine(ex.ToString()); /* * System.ArgumentException: the topParser specified is not found in this ebnf * at Eto.Parse.Grammars.EbnfGrammar.Build (System.String bnf, System.String startParserName) [0x00048] in <filename unknown>:0 * at Globals.Main (System.String[] args) [0x0002b] in /var/calculate/remote/distfiles/egit-src/SqlParser-on-EtoParse.git/test1/Program.cs:20 */ throw; } } return(grammarForIncludes); }
public Parser(string textGrammar, string root_rule, EbnfStyle style) { var ebnfGrammar = new Eto.Parse.Grammars.EbnfGrammar(style); myGrammar = ebnfGrammar.Build(textGrammar, root_rule); myGrammar.CheckAbsentRules(); }
public static void Parse_ManualSpaces(string[] args) { var textGrammar = Resources("syntax4.ebnf"); var textContent = LoadReader(Console.In); var root_rule = "file_content"; EbnfStyle style = (EbnfStyle)( (uint)EbnfStyle.Iso14977 & ~(uint)EbnfStyle.WhitespaceSeparator | (uint)EbnfStyle.EscapeTerminalStrings); var Parser = new Parser(textGrammar, root_rule, style); Parser.DoProcessing(textContent, args); }
static void Main(string[] args) { var fileContent = LoadFromResource(nameof(rus_gramm_norm), "Grammar", "syntax2.ebnf"); EbnfStyle style = (EbnfStyle)( (uint)EbnfStyle.Iso14977 //& ~(uint) EbnfStyle.WhitespaceSeparator | (uint)EbnfStyle.EscapeTerminalStrings); EbnfGrammar grammar; Grammar parser; try { grammar = new EbnfGrammar(style); parser = grammar.Build(fileContent, nameOfTheStartingRule); } catch (Exception ex) { Trace.WriteLine(ex.ToString()); /* * System.ArgumentException: the topParser specified is not found in this ebnf * at Eto.Parse.Grammars.EbnfGrammar.Build (System.String bnf, System.String startParserName) [0x00048] in <filename unknown>:0 * at Globals.Main (System.String[] args) [0x0002b] in /var/calculate/remote/distfiles/egit-src/SqlParser-on-EtoParse.git/test1/Program.cs:20 */ throw; } var originalContent = LoadFromResource(nameof(rus_gramm_norm), "Grammar", "syntax1.ebnf"); var match = parser.Match(originalContent); if (match.Success == false) { Console.Out.WriteLine("No luck!"); } else { DumpAllMatches(match, nameOfTheStartingRule); } }
public Parser(string textGrammar, string root_rule, EbnfStyle style) { var ebnfGrammar = new Eto.Parse.Grammars.EbnfGrammar( style ); myGrammar = ebnfGrammar.Build(textGrammar, root_rule); myGrammar.CheckAbsentRules (); }
public EbnfGrammar(EbnfStyle style) : base("ebnf") { Style = style; DefineCommonNonTerminals = true; GenerateSpecialSequences(); // terminals var comment = style.HasFlag(EbnfStyle.BracketComments) ? new GroupParser("(*", "*)") : new GroupParser("/*", "*/"); var ows = -(Terminals.WhiteSpace | comment); var rws = +(Terminals.WhiteSpace | comment); var hex_character = ("#x" & +Terminals.HexDigit); var character = (("\\" & Terminals.AnyChar) | hex_character | Terminals.AnyChar.Except("]")).WithName("character"); var character_range = (character & "-" & character).WithName("character range"); var character_set = ("[" & ~(Parser)"^" & +(character_range | character) & "]").WithName("character set"); var terminal_string = new StringParser { QuoteCharacters = new [] { '\"', '\'', '’' }, Name = "terminal string" }; var special_sequence = ("?" & (+Terminals.AnyChar).Until("?").WithName("name") & "?").WithName("special sequence"); var meta_identifier_terminal = Terminals.Letter & -(Terminals.LetterOrDigit | '_'); var integer = new NumberParser().WithName("integer"); // nonterminals var definition_list = new RepeatParser(0).WithName("definition list"); var single_definition = new RepeatParser(1).WithName("single definition"); var term = new SequenceParser().WithName("term"); var primary = new AlternativeParser().WithName("primary"); var exception = new UnaryParser("exception"); var factor = new SequenceParser().WithName("factor"); var meta_identifier = new RepeatParser(1).WithName("meta identifier"); var syntax_rule = new SequenceParser().WithName("syntax rule"); var rule_equals = new AlternativeParser().WithName("equals"); Parser meta_reference = meta_identifier; Parser grouped_sequence = ("(" & ows & definition_list & ows & ")").WithName("grouped sequence"); if (style.HasFlag(EbnfStyle.SquareBracketAsOptional)) { primary.Add(("[" & ows & definition_list & ows & "]").WithName("optional sequence")); } if (!style.HasFlag(EbnfStyle.CardinalityFlags)) { var repeated_sequence = ("{" & ows & definition_list & ows & "}").WithName("repeated sequence"); primary.Add(repeated_sequence); } // rules meta_identifier.Inner = meta_identifier_terminal; meta_identifier.Separator = +(Terminals.SingleLineWhiteSpace); if (!style.HasFlag(EbnfStyle.CommaSeparator)) { // w3c identifiers must be a single word meta_identifier.Maximum = 1; meta_reference = meta_reference.NotFollowedBy(ows & rule_equals); } primary.Add(grouped_sequence, meta_reference, terminal_string, special_sequence); if (style.HasFlag(EbnfStyle.CharacterSets) && !style.HasFlag(EbnfStyle.SquareBracketAsOptional)) { // w3c supports character sets primary.Add(hex_character.Named("hex character")); primary.Add(character_set); } if (style.HasFlag(EbnfStyle.NumericCardinality)) factor.Add(~(integer & ows & "*" & ows)); factor.Add(primary); if (style.HasFlag(EbnfStyle.CardinalityFlags)) { // w3c defines cardinality at the end of a factor var flags = style.HasFlag(EbnfStyle.SquareBracketAsOptional) ? "*+" : "?*+"; factor.Add(~(ows & Terminals.Set(flags).WithName("cardinality"))); } term.Add(factor, ~(ows & "-" & ows & exception)); exception.Inner = term; single_definition.Inner = term; single_definition.Separator = style.HasFlag(EbnfStyle.CommaSeparator) ? (Parser)(ows & "," & ows) : ows; definition_list.Inner = single_definition; definition_list.Separator = ows & "|" & ows; rule_equals.Add(style.HasFlag(EbnfStyle.DoubleColonEquals) ? "::=" : "=", ":="); syntax_rule.Add(meta_identifier, ows, rule_equals, ows, definition_list); if (style.HasFlag(EbnfStyle.SemicolonTerminator)) syntax_rule.Add(ows, ";"); // iso rules are terminated by a semicolon var syntax_rules = +syntax_rule; syntax_rules.Separator = style.HasFlag(EbnfStyle.SemicolonTerminator) ? ows : rws; Inner = ows & syntax_rules & ows; AttachEvents(); }
public EbnfGrammar(EbnfStyle style) : base("ebnf") { Style = style; DefineCommonNonTerminals = true; GenerateSpecialSequences(); // terminals var comment = style.HasFlag(EbnfStyle.BracketComments) ? new GroupParser("(*", "*)") : new GroupParser("/*", "*/"); var ows = -(Terminals.WhiteSpace | comment); var rws = +(Terminals.WhiteSpace | comment); var hex_character = ("#x" & +Terminals.HexDigit); var character = (("\\" & Terminals.AnyChar) | hex_character | Terminals.AnyChar.Except("]")).WithName("character"); var character_range = (character & "-" & character).WithName("character range"); var character_set = ("[" & ~(Parser)"^" & +(character_range | character) & "]").WithName("character set"); var terminal_string = new StringParser { QuoteCharacters = new [] { '\"', '\'', '’' }, Name = "terminal string" }; var special_sequence = ("?" & (+Terminals.AnyChar).Until("?").WithName("name") & "?").WithName("special sequence"); var meta_identifier_terminal = Terminals.Letter & -(Terminals.LetterOrDigit | '_'); var integer = new NumberParser().WithName("integer"); // nonterminals var definition_list = new RepeatParser(0).WithName("definition list"); var single_definition = new RepeatParser(1).WithName("single definition"); var term = new SequenceParser().WithName("term"); var primary = new AlternativeParser().WithName("primary"); var exception = new UnaryParser("exception"); var factor = new SequenceParser().WithName("factor"); var meta_identifier = new RepeatParser(1).WithName("meta identifier"); var syntax_rule = new SequenceParser().WithName("syntax rule"); var rule_equals = new AlternativeParser().WithName("equals"); Parser meta_reference = meta_identifier; Parser grouped_sequence = ("(" & ows & definition_list & ows & ")").WithName("grouped sequence"); if (style.HasFlag(EbnfStyle.SquareBracketAsOptional)) { primary.Add(("[" & ows & definition_list & ows & "]").WithName("optional sequence")); } if (!style.HasFlag(EbnfStyle.CardinalityFlags)) { var repeated_sequence = ("{" & ows & definition_list & ows & "}").WithName("repeated sequence"); primary.Add(repeated_sequence); } // rules meta_identifier.Inner = meta_identifier_terminal; meta_identifier.Separator = +(Terminals.SingleLineWhiteSpace); if (!style.HasFlag(EbnfStyle.CommaSeparator)) { // w3c identifiers must be a single word meta_identifier.Maximum = 1; meta_reference = meta_reference.NotFollowedBy(ows & rule_equals); } primary.Add(grouped_sequence, meta_reference, terminal_string, special_sequence); if (style.HasFlag(EbnfStyle.CharacterSets) && !style.HasFlag(EbnfStyle.SquareBracketAsOptional)) { // w3c supports character sets primary.Add(hex_character.Named("hex character")); primary.Add(character_set); } if (style.HasFlag(EbnfStyle.NumericCardinality)) { factor.Add(~(integer & ows & "*" & ows)); } factor.Add(primary); if (style.HasFlag(EbnfStyle.CardinalityFlags)) { // w3c defines cardinality at the end of a factor var flags = style.HasFlag(EbnfStyle.SquareBracketAsOptional) ? "*+" : "?*+"; factor.Add(~(ows & Terminals.Set(flags).WithName("cardinality"))); } term.Add(factor, ~(ows & "-" & ows & exception)); exception.Inner = term; single_definition.Inner = term; single_definition.Separator = style.HasFlag(EbnfStyle.CommaSeparator) ? (Parser)(ows & "," & ows) : ows; definition_list.Inner = single_definition; definition_list.Separator = ows & "|" & ows; rule_equals.Add(style.HasFlag(EbnfStyle.DoubleColonEquals) ? "::=" : "=", ":="); syntax_rule.Add(meta_identifier, ows, rule_equals, ows, definition_list); if (style.HasFlag(EbnfStyle.SemicolonTerminator)) { syntax_rule.Add(ows, ";"); // iso rules are terminated by a semicolon } var syntax_rules = +syntax_rule; syntax_rules.Separator = style.HasFlag(EbnfStyle.SemicolonTerminator) ? ows : rws; Inner = ows & syntax_rules & ows; AttachEvents(); }