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// java2html.java
import java.io.*;
import java.util.*;
public class java2html
{
static final String keywords[] =
{
"abstract", "default", "if", "private", "throw",
"boolean", "do", "implements", "protected", "throws",
"break", "double", "import", "public", "transient",
"byte", "else", "instanceof", "return", "try",
"case", "extends", "int", "short", "void",
"catch", "final", "interface", "static", "volatile",
"char", "finally", "long", "super", "while",
"class", "float", "native", "switch",
"const", "for", "new", "synchronized",
"continue", "goto", "package", "this"
};
static Vector keyw = new Vector(keywords.length);
static
{
for (int i = 0; i < keywords.length; i++)
keyw.addElement(keywords[i]);
}
static int tabsize = 4;
static String bgcolor = "C0C0C0";
static String txcolor = "000000";
static String kwcolor = "0000F0";
static String cmcolor = "A00000";
static void convert(String source) throws IOException
{
String dest = source + ".html";
System.out.println(dest);
FileReader in = new FileReader(source);
FileWriter out = new FileWriter(dest);
out.write("<html>\r\n<head>\r\n<title>");
out.write(source);
out.write("</title>\r\n</head>\r\n<body ");
out.write("bgcolor=\"" + bgcolor +"\" ");
out.write("text=\"" + txcolor +"\">\r\n");
out.write("<pre>\r\n");
StringBuffer buf = new StringBuffer(2048);
int c = 0, kwl = 0, bufl = 0;
char ch = 0, lastch;
int s_normal = 0;
int s_string = 1;
int s_char = 2;
int s_comline = 3;
int s_comment = 4;
int state = s_normal;
while (c != -1)
{
c = in.read();
lastch = ch;
ch = c >= 0 ? (char) c : 0;
if (state == s_normal)
if (kwl == 0 && Character.isJavaIdentifierStart(ch)
&& !Character.isJavaIdentifierPart(lastch)
|| kwl > 0 && Character.isJavaIdentifierPart(ch))
{
buf.append(ch);
bufl++;
kwl++;
continue;
} else
if (kwl > 0)
{
String kw = buf.toString().substring(buf.length() - kwl);
if (keyw.contains(kw))
{
buf.insert(buf.length() - kwl,
"<font color=\"" + kwcolor + "\">");
buf.append("</font>");
}
kwl = 0;
}
switch (ch)
{
case '&':
buf.append("&");
bufl++;
break;
case '\"':
buf.append(""");
bufl++;
if (state == s_normal)
state = s_string;
else
if (state == s_string && lastch != '\\')
state = s_normal;
break;
case '\'':
buf.append("\'");
bufl++;
if (state == s_normal)
state = s_char;
else
if (state == s_char && lastch != '\\')
state = s_normal;
break;
case '\\':
buf.append("\\");
bufl++;
if (lastch == '\\' && (state == s_string || state == s_char))
lastch = 0;
break;
case '/':
buf.append("/");
bufl++;
if (state == s_comment && lastch == '*')
{
buf.append("</font>");
state = s_normal;
}
if (state == s_normal && lastch == '/')
{
buf.insert(buf.length() - 2,
"<font color=\"" + cmcolor + "\">");
state = s_comline;
}
break;
case '*':
buf.append("*");
bufl++;
if (state == s_normal && lastch == '/')
{
buf.insert(buf.length() - 2,
"<font color=\"" + cmcolor + "\">");
state = s_comment;
}
break;
case '<':
buf.append("<");
bufl++;
break;
case '>':
buf.append(">");
bufl++;
break;
case '\t':
int n = bufl / tabsize * tabsize + tabsize;
while (bufl < n)
{
buf.append(' ');
bufl++;
}
break;
case '\r':
case '\n':
if (state == s_comline)
{
buf.append("</font>");
state = s_normal;
}
buf.append(ch);
if (buf.length() >= 1024)
{
out.write(buf.toString());
buf.setLength(0);
}
bufl = 0;
if (kwl != 0)
kwl = 0; // This should never execute
if (state != s_normal && state != s_comment)
state = s_normal; // Sintax Error
break;
case 0:
if (c < 0)
{
if (state == s_comline)
{
buf.append("</font>");
state = s_normal;
}
out.write(buf.toString());
buf.setLength(0);
bufl = 0;
if (state == s_comment)
{
// Sintax Error
buf.append("</font>");
state = s_normal;
}
break;
}
default:
bufl++;
buf.append(ch);
}
}
out.write("</pre>\r\n</body>\r\n</html>");
in.close();
out.close();
}
public static void main(String args[])
{
if (args.length < 1 || args.length > 2)
{
System.out.println("java2html converter + syntax coloring + tabs2spaces");
System.out.println("");
System.out.println("java [java_opt] java2html [properties_file] source");
System.out.println("");
System.out.println(" - java is the name of the Java interpreter");
System.out.println(" - java_opt are the options of the Java interpreter");
System.out.println(" - java2html is the name of this application");
System.out.println(" - properties_file (optional) is the path ");
System.out.println(" of a file which has a structure like this:");
System.out.println(" tabsize=number (default value is 4)");
System.out.println(" bgcolor=RRGGBB (default value is C0C0C0) - background");
System.out.println(" txcolor=RRGGBB (default value is 000000) - source code");
System.out.println(" kwcolor=RRGGBB (default value is 0000F0) - keywords");
System.out.println(" cmcolor=RRGGBB (default value is A00000) - comments");
System.out.println(" - source is a file or the directory to the Java source file(s)");
System.out.println("");
System.out.println("Examples:");
System.out.println(" java java2html java2html.java");
System.out.println(" java java2html C:\\TEMP");
System.out.println(" java java2html java2html.properties C:\\TEMP");
System.exit(1);
}
String source, propfile;
if (args.length == 2)
{
propfile = args[0];
source = args[1];
}
else
{
propfile = "java2html.properties";
source = args[0];
}
try
{
InputStream in = new FileInputStream(propfile);
Properties prop = new Properties();
prop.load(in);
in.close();
tabsize = Integer.parseInt(prop.getProperty("tabsize", "4"));
bgcolor = "#" + prop.getProperty("bgcolor", bgcolor);
txcolor = "#" + prop.getProperty("txcolor", txcolor);
kwcolor = "#" + prop.getProperty("kwcolor", kwcolor);
cmcolor = "#" + prop.getProperty("cmcolor", cmcolor);
}
catch (FileNotFoundException e)
{
}
catch (IOException e)
{
System.out.println(e);
}
catch (NumberFormatException e)
{
System.out.println(e);
}
File f = new File(source);
if (f.isFile())
{
try
{
convert(f.getPath());
}
catch (IOException e)
{
System.out.println(e);
}
}
else if (f.isDirectory())
{
try
{
String src[] = f.list();
for (int i = 0; i < src.length; i++)
if (src[i].endsWith(".java"))
convert(new File(f, src[i]).getPath());
}
catch (IOException e)
{
System.out.println(e);
}
}
else
{
System.out.println("The source parameter must be an existent file or directory");
System.out.println("Run java2html without parameters for help");
}
}
}
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