analysis/c/CXref.lex

	CXref.lex revision 2b46c6c34fcb824c622e7da13c019de88e8474a7
/*
 * CDDL HEADER START
 *
 * The contents of this file are subject to the terms of the
 * Common Development and Distribution License (the "License").
 * You may not use this file except in compliance with the License.
 *
 * See LICENSE.txt included in this distribution for the specific
 * language governing permissions and limitations under the License.
 *
 * When distributing Covered Code, include this CDDL HEADER in each
 * file and include the License file at LICENSE.txt.
 * If applicable, add the following below this CDDL HEADER, with the
 * fields enclosed by brackets "[]" replaced with your own identifying
 * information: Portions Copyright [yyyy] [name of copyright owner]
 *
 * CDDL HEADER END
 */

/*
 * Copyright 2005 Sun Microsystems, Inc.  All rights reserved.
 * Use is subject to license terms.
 */

/*
 * ident    "%Z%%M% %I%     %E% SMI"
 */

/*
 * Cross reference a C file
 */

package org.opensolaris.opengrok.analysis.c;
import java.util.*;
import java.io.*;
import org.opensolaris.opengrok.web.Util;
import org.opensolaris.opengrok.configuration.RuntimeEnvironment;

%%
%public
%class CXref
%unicode
%ignorecase
%int
%line
%{
  Writer out;
  String urlPrefix = RuntimeEnvironment.getInstance().getUrlPrefix();
  private HashMap<String, HashMap<Integer, String>> defs = null;
  public void setDefs(HashMap<String, HashMap<Integer, String>> defs) {
    this.defs = defs;
  }

  public void reInit(char[] buf, int len) {
    yyreset((Reader) null);
    zzBuffer = buf;
    zzEndRead = len;
    zzAtEOF = true;
    zzStartRead = 0;
  }

  public void write(Writer out) throws IOException {
    this.out = out;
    yyline = 2;
    out.write("<a class=\"l\" name=\"1\">      1 </a>");
    while(yylex() != YYEOF) {
    }
  }

  public int getLine() {
    return yyline-2;
  }

  public static void main(String argv[]) {
    if (argv.length <= 1) {
      System.out.println("Usage : java Xref <inputfile> <outfile> <ctags binary> ");
    }
    else {
      Date start = new Date();
      CXref scanner = null;
      try {
      //Ctags ctags = new Ctags(argv[2]);
          scanner = new CXref( new BufferedReader(new java.io.FileReader(argv[0])));
      //scanner.setDefs(ctags.doCtags(argv[0] + "\n"));
      BufferedWriter out = new BufferedWriter(new java.io.FileWriter(argv[1]));
      out.write("<html><head><style>a{text-decoration:none;color:#444499;} .I{color:#000099;} .K{color:#000000; font-weight:bold;} .N{color:brown;} .c{color:grey;} .s{color:green;} .hl{color: black; font-weight:bold; text-decoration:none; background-color:#eee; margin-right:.2em;padding-left:.2em;padding-right:.5em;} .l{color: #666699; text-decoration:none; font-weight:normal;background-color:#eee; margin-right:.2em;padding-left:.2em;padding-right:.5em;} .d{color:#909; font-weight:bold; font-style:italic;} .f{color:#909;} .mf{color:#909;}</style></head><body><pre>");
      scanner.write(out);
      out.write("</pre></body></html>");
      out.close();
      }
      catch (Exception e) {
        e.printStackTrace();
      }
      long span =  ((new Date()).getTime() - start.getTime());
      System.err.println("took: "+ span + " msec");
     }
  }

%}

WhiteSpace     = [ \t\f\r]+
Identifier = [a-zA-Z_] [a-zA-Z0-9_]+

URIChar = [\?\+\%\&\:\/\.\@\_\;\=\$\,\-\!\~\*\\]
FNameChar = [a-zA-Z0-9_\-\.]
File = [a-zA-Z]{FNameChar}* "." ([chts]|"conf"|"java"|"cpp"|"CC"|"txt"|"htm"|"html"|"pl"|"xml")
Path = "/"? [a-zA-Z]{FNameChar}* ("/" [a-zA-Z]{FNameChar}*[a-zA-Z0-9])+

Number = ([0-9][0-9]*|[0-9]+.[0-9]+|"0x" [0-9a-fA-F]+ )([udl]+)?

%state  STRING COMMENT SCOMMENT QSTRING

%%
<YYINITIAL>{
 {Identifier}   { String id = yytext();
            if(Consts.kwd.contains(id)) {
                out.write("<b>");out.write(id);out.write("</b>");
            } else {
                HashMap<Integer, String> tags;
                if(defs != null && (tags = defs.get(id)) != null) {
                    int sz = 0;
                    boolean written = false;
                    if (tags.containsKey(new Integer(yyline-1))) {
                            out.write("<a class=\"d\" name=\"");
                            out.write(id);
                            out.write("\">");
                            out.write(id);
                            out.write("</a>");
                            written = true;
                            break;
                    } else if (tags.size() == 1) {
                        out.write("<a class=\"f\" href=\"#");
                        out.write(id);
                        out.write("\">");
                        out.write(id);
                        out.write("</a>");
                    } else {
                        out.write("<span class=\"mf\">");
                        out.write(id);
                        out.write("</span>");
                    }
                } else {
                out.write("<a href=\"");
                out.write(urlPrefix);
                out.write("defs=");
                out.write(id);
                out.write("\">");
                out.write(id);
                out.write("</a>");
                }
            }
        }

"<" {File} ">" {out.write("&lt;");
    out.write("<a href=\""+urlPrefix+"path=");
    out.write(zzBuffer, zzStartRead+1, zzMarkedPos-zzStartRead-2);out.write("\">");
    out.write(zzBuffer, zzStartRead+1, zzMarkedPos-zzStartRead-2);out.write("</a>");
    out.write("&gt;");}

"<" {Path} ">" {out.write("&lt;");
    out.write("<a href=\""+urlPrefix+"path=");
    out.write(zzBuffer, zzStartRead+1, zzMarkedPos-zzStartRead-2);out.write("\">");
    out.write(zzBuffer, zzStartRead+1, zzMarkedPos-zzStartRead-2);out.write("</a>");
    out.write("&gt;");}

/*{Hier}
    { out.write(Util.breadcrumbPath(urlPrefix+"defs=",yytext(),'.'));}
*/
{Number}    { out.write("<span class=\"n\">"); out.write(zzBuffer, zzStartRead, zzMarkedPos-zzStartRead); out.write("</span>"); }

 \" { yybegin(STRING);out.write("<span class=\"s\">\"");}
 \' { yybegin(QSTRING);out.write("<span class=\"s\">\'");}
 "/*"   { yybegin(COMMENT);out.write("<span class=\"c\">/*");}
 "//"   { yybegin(SCOMMENT);out.write("<span class=\"c\">//");}
}

<STRING> {
 \" {WhiteSpace} \"  { out.write(zzBuffer, zzStartRead, zzMarkedPos-zzStartRead);}
 \" { yybegin(YYINITIAL); out.write("\"</span>"); }
 \\\\   { out.write("\\\\"); }
 \\\"   { out.write("\\\""); }
}

<QSTRING> {
 "\\\\" { out.write("\\\\"); }
 "\\'" { out.write("\\\'"); }
 \' {WhiteSpace} \' { out.write(zzBuffer, zzStartRead, zzMarkedPos-zzStartRead); }
 \' { yybegin(YYINITIAL); out.write("'</span>"); }
}

<COMMENT> {
"*/"    { yybegin(YYINITIAL); out.write("*/</span>"); }
}

<SCOMMENT> {
{WhiteSpace}*\n { yybegin(YYINITIAL); out.write("</span>");Util.readableLine(yyline, out);}
}


<YYINITIAL, STRING, COMMENT, SCOMMENT, QSTRING> {
"&" {out.write( "&amp;");}
"<" {out.write( "&lt;");}
">" {out.write( "&gt;");}
{WhiteSpace}*\n { Util.readableLine(yyline, out); }
 {WhiteSpace}   { out.write(zzBuffer, zzStartRead, zzMarkedPos-zzStartRead); }
 [!-~]  { out.write(yycharat(0)); }
 .  { }
}

<STRING, COMMENT, SCOMMENT, STRING, QSTRING> {
{Path}
    { out.write(Util.breadcrumbPath(urlPrefix+"path=",yytext(),'/'));}

{File}
    {
    out.write("<a href=\""+urlPrefix+"path=");
    out.write(zzBuffer, zzStartRead, zzMarkedPos-zzStartRead);out.write("\">");
    out.write(zzBuffer, zzStartRead, zzMarkedPos-zzStartRead);out.write("</a>");}

("http" | "https" | "ftp" ) "://" ({FNameChar}|{URIChar})+[a-zA-Z0-9/]
    {
     out.write("<a href=\"");
     out.write(zzBuffer, zzStartRead, zzMarkedPos-zzStartRead);out.write("\">");
     out.write(zzBuffer, zzStartRead, zzMarkedPos-zzStartRead);out.write("</a>");}

{FNameChar}+ "@" {FNameChar}+ "." {FNameChar}+
    {
        for(int mi = zzStartRead; mi < zzMarkedPos; mi++) {
            if(zzBuffer[mi] != '@') {
                out.write(zzBuffer[mi]);
            } else {
                out.write(" (at) ");
            }
        }
        //out.write("<a href=\"mailto:");
        //out.write(zzBuffer, zzStartRead, zzMarkedPos-zzStartRead);out.write("\">");
        //out.write(zzBuffer, zzStartRead, zzMarkedPos-zzStartRead);out.write("</a>");
    }
}