New VHDL parser implementation

1 files changed, 186 insertions, 0 deletions

diff --git a/vhdlparser/ParseException.cc b/vhdlparser/ParseException.cc
new file mode 100644
index 0000000..31ee7a3
--- /dev/null
+++ b/vhdlparser/ParseException.cc
@@ -0,0 +1,186 @@
+/* Generated By:JavaCC: Do not edit this line. ParseException.cc Version 6.0 */
+/* JavaCCOptions:STATIC=false,SUPPORT_CLASS_VISIBILITY_PUBLIC=true */
+#include "ParseException.h"
+
+
+namespace vhdl {
+namespace parser {
+/**
+ * This exception is thrown when parse errors are encountered.
+ * You can explicitly create objects of this exception type by
+ * calling the method generate_ParseException in the generated
+ * parser.
+ *
+ * You can modify this class to customize your error reporting
+ * mechanisms so long as you retain the fields.
+ */
+
+  /**
+   * This constructor is used by the method "generate_ParseException"
+   * in the generated parser.  Calling this constructor generates
+   * a new object of this type with the fields "currentToken",
+   * "expectedTokenSequences", and "tokenImage" set.
+   */
+  ParseException::ParseException(Token currentTokenVal,
+                        int** expectedTokenSequencesVal,
+                        JAVACC_STRING_TYPE* tokenImageVal
+                       )
+  {
+    initialise(currentTokenVal, expectedTokenSequencesVal, tokenImageVal);
+    currentToken = currentTokenVal;
+    expectedTokenSequences = expectedTokenSequencesVal;
+    tokenImage = tokenImageVal;
+  }
+
+  /**
+   * The following constructors are for use by you for whatever
+   * purpose you can think of.  Constructing the exception in this
+   * manner makes the exception behave in the normal way - i.e., as
+   * documented in the class "Throwable".  The fields "errorToken",
+   * "expectedTokenSequences", and "tokenImage" do not contain
+   * relevant information.  The JavaCC generated code does not use
+   * these constructors.
+   */
+
+  ParseException::ParseException() {
+  }
+
+  /** Constructor with message. */
+  ParseException::ParseException(JAVACC_STRING_TYPE message) {
+  }
+
+
+  /**
+   * This is the last token that has been consumed successfully.  If
+   * this object has been created due to a parse error, the token
+   * followng this token will (therefore) be the first error token.
+   */
+  Token currentToken;
+
+  /**
+   * Each entry in this array is an array of integers.  Each array
+   * of integers represents a sequence of tokens (by their ordinal
+   * values) that is expected at this point of the parse.
+   */
+  int** expectedTokenSequences;
+
+  /**
+   * This is a reference to the "tokenImage" array of the generated
+   * parser within which the parse error occurred.  This array is
+   * defined in the generated ...Constants class.
+   */
+  JAVACC_STRING_TYPE* tokenImage;
+
+  /**
+   * It uses "currentToken" and "expectedTokenSequences" to generate a parse
+   * error message and returns it.  If this object has been created
+   * due to a parse error, and you do not catch it (it gets thrown
+   * from the parser) the correct error message
+   * gets displayed.
+   */
+  JAVACC_STRING_TYPE ParseException::initialise(Token currentToken,
+                           int** expectedTokenSequences,
+                           JAVACC_STRING_TYPE* tokenImage) {
+#if 0
+    //JAVACC_STRING_TYPE eol = System.getProperty("line.separator", "\n");
+     expected = new JAVACC_STRING_TYPE();
+    int maxSize = 0;
+    for (int i = 0; i < expectedTokenSequences.length; i++) {
+      if (maxSize < expectedTokenSequences[i].length) {
+        maxSize = expectedTokenSequences[i].length;
+      }
+      for (int j = 0; j < expectedTokenSequences[i].length; j++) {
+        expected.append(tokenImage[expectedTokenSequences[i][j]]).append(' ');
+      }
+      if (expectedTokenSequences[i][expectedTokenSequences[i].length - 1] != 0) {
+        expected.append((JAVACC_CHAR_TYPE*)"...");
+      }
+      expected.append(eol).append("    ");
+    }
+    JAVACC_STRING_TYPE retval = (JAVACC_CHAR_TYPE*)"Encountered \"";
+    Token tok = currentToken.next;
+    for (int i = 0; i < maxSize; i++) {
+      if (i != 0) retval += (JAVACC_CHAR_TYPE*)" ";
+      if (tok.kind == 0) {
+        retval += tokenImage[0];
+        break;
+      }
+      retval += (JAVACC_CHAR_TYPE*)" " + tokenImage[tok.kind];
+      retval += (JAVACC_CHAR_TYPE*)" \"";
+      retval += add_escapes(tok.image);
+      retval += (JAVACC_CHAR_TYPE*)" \"";
+      tok = tok.next;
+    }
+    retval += (JAVACC_CHAR_TYPE*)"\" at line " + currentToken.next.beginLine + (JAVACC_CHAR_TYPE*)", column " + currentToken.next.beginColumn;
+    retval += (JAVACC_CHAR_TYPE*)"." + eol;
+    if (expectedTokenSequences.length == 1) {
+      retval += (JAVACC_CHAR_TYPE*)"Was expecting:" + eol + (JAVACC_CHAR_TYPE*)"    ";
+    } else {
+      retval += (JAVACC_CHAR_TYPE*)"Was expecting one of:" + eol + (JAVACC_CHAR_TYPE*)"    ";
+    }
+    retval += expected.toString();
+    return retval;
+#endif
+    return (JAVACC_CHAR_TYPE*)"Parse exception";
+  }
+
+  /**
+   * The end of line JAVACC_STRING_TYPE for this machine.
+   */
+#define eol "\n"
+
+  /**
+   * Used to convert raw characters to their escaped version
+   * when these raw version cannot be used as part of an ASCII
+   * string literal.
+   */
+   JAVACC_STRING_TYPE ParseException::add_escapes(JAVACC_STRING_TYPE str) {
+/*
+      JAVACC_STRING_TYPE *retval = new JAVACC_STRING_TYPE();
+      JAVACC_CHAR_TYPE ch;
+      for (int i = 0; i < str.length(); i++) {
+        switch (str.charAt(i))
+        {
+           case 0 :
+              continue;
+           case '\b':
+              retval.append("\\b");
+              continue;
+           case '\t':
+              retval.append("\\t");
+              continue;
+           case '\n':
+              retval.append("\\n");
+              continue;
+           case '\f':
+              retval.append("\\f");
+              continue;
+           case '\r':
+              retval.append("\\r");
+              continue;
+           case '\"':
+              retval.append("\\\"");
+              continue;
+           case '\'':
+              retval.append("\\\'");
+              continue;
+           case '\\':
+              retval.append("\\\\");
+              continue;
+           default:
+              if ((ch = str.charAt(i)) < 0x20 || ch > 0x7e) {
+                 JAVACC_STRING_TYPE s = "0000" + Integer.toString(ch, 16);
+                 retval.append("\\u" + s.substring(s.length() - 4, s.length()));
+              } else {
+                 retval.append(ch);
+              }
+              continue;
+        }
+      }
+      return retval.toString();
+*/ return str;
+   }
+
+}
+}
+/* JavaCC - OriginalChecksum=99d488e13335cf377284c90700f070ed (do not edit this line) */