grammar...

sqljs · Jun 19, 2012 · 90555da · 90555da
1 parent e6e7867
commit 90555da
Showing 1 changed file with 140 additions and 0 deletions.
diff --git a/lib/sql.pegjs b/lib/sql.pegjs
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+
+STATEMENTS
+  = _ statement:STATEMENT ';' statements:STATEMENTS {
+      if(statement) statements.unshift(statement); return statements;
+    }
+  / _ statement:STATEMENT { return [statement]; }
+  / _ { return []; }
+
+
+STATEMENT
+  = ddl:DDL { return ddl; }
+
+DDL
+  = create_table_statement:CREATE_TABLE_STATEMENT {
+      return create_table_statement;
+    }
+
+CREATE_TABLE_STATEMENT "CREATE TABLE statement"
+  = ("CREATE"i __)? "TABLE"i __ table:TABLE_NAME _ '(' columns:COLUMN_DEFINITIONS ')' _ { 
+      return {
+        statement: "CREATE TABLE",
+        schema: table.schema,
+        table: table.table,
+        columns: columns
+      }; 
+    }
+
+
+COLUMN_DEFINITIONS
+  = _ col:COLUMN_DEFINITION ',' cols:COLUMN_DEFINITIONS { cols.unshift(col); return cols; }
+  / _ col:COLUMN_DEFINITION { return [col]; }
+  / _ { return []; }
+
+
+COLUMN_DEFINITION
+  = name:QUOTED_ID __ type:COLUMN_TYPE { return { name:name, type:type }; }
+  / name:QUOTED_ID { return { name:name }; }
+
+
+COLUMN_TYPE
+  = type:TYPE { return type; }
+
+
+TYPE
+  = "INT"i "EGER"i? { return { name: "INT" }; }
+
+
+/* === TABLE NAME === */
+
+TABLE_NAME "table name"
+  = schema:QUOTED_ID '.' name:QUOTED_ID {
+      return { schema: schema, table: name };
+    }
+  / name:QUOTED_ID { return { table: name }; }
+
+/* === QUOTED ID === */
+
+QUOTED_ID "Identifier"
+  = start:[A-Za-z_] rest:[A-Za-z0-9_]* { return start + rest.join(''); }
+  / '`' name:[^`]+ '`' { return name.join(''); }
+
+/* === STRING === */
+
+STRING "string"
+  = '"' '"' _              { return "";    }
+  / "'" "'" _              { return "";    }
+  / '"' chars:chars1 '"' _ { return chars; }
+  / "'" chars:chars2 "'" _ { return chars; }
+
+chars1
+  = chars:char1+ { return chars.join(""); }
+
+char1
+  // In the original JSON grammar: "any-Unicode-character-except-"-or-\-or-control-character"
+  = [^"\\\0-\x1F\x7f]
+  / "\\'"  { return "'";  }
+  / '\\"'  { return '"';  }
+  / "\\\\" { return "\\"; }
+  / "\\/"  { return "/";  }
+  / "\\b"  { return "\b"; }
+  / "\\f"  { return "\f"; }
+  / "\\n"  { return "\n"; }
+  / "\\r"  { return "\r"; }
+  / "\\t"  { return "\t"; }
+  / "\\u" h1:hexDigit h2:hexDigit h3:hexDigit h4:hexDigit {
+      return String.fromCharCode(parseInt("0x" + h1 + h2 + h3 + h4));
+    }
+
+chars2
+  = chars:char2+ { return chars.join(""); }
+
+char2
+  // In the original JSON grammar: "any-Unicode-character-except-"-or-\-or-control-character"
+  = [^'\\\0-\x1F\x7f]
+  / "\\'"  { return "'";  }
+  / '\\"'  { return '"';  }
+  / "\\\\" { return "\\"; }
+  / "\\/"  { return "/";  }
+  / "\\b"  { return "\b"; }
+  / "\\f"  { return "\f"; }
+  / "\\n"  { return "\n"; }
+  / "\\r"  { return "\r"; }
+  / "\\t"  { return "\t"; }
+  / "\\u" h1:hexDigit h2:hexDigit h3:hexDigit h4:hexDigit {
+      return String.fromCharCode(parseInt("0x" + h1 + h2 + h3 + h4));
+    }
+
+hexDigit
+  = [0-9a-fA-F]
+
+/* === Comments and whitespaces === */
+
+comment "comment"
+  = singleLineComment
+  / multiLineComment
+
+singleLineComment
+  = "--" (!eolChar .)*
+  / "#" (!eolChar .)*
+  / "//" (!eolChar .)*
+
+multiLineComment
+  = "/*" (!"*/" .)* "*/"
+
+_ = (whitespace / eol / comment)*
+
+__ = (whitespace / eol / comment)+
+
+eol "end of line"
+  = "\n"
+  / "\r\n"
+  / "\r"
+  / "\u2028"
+  / "\u2029"
+
+eolChar
+  = [\n\r\u2028\u2029]
+
+whitespace "whitespace"
+  = [ \t\v\f\r\n\u00A0\uFEFF\u1680\u180E\u2000-\u200A\u202F\u205F\u3000]