* Re-implemented support for .hsp files in HEAD.

* Cleaned up .hac and .hsp processing code
* Renamed RhinoActionAdapter to HacHspConverter
This commit is contained in:
hns 2005-03-16 11:05:43 +00:00
parent dc394199be
commit 4527bda2b5
3 changed files with 225 additions and 80 deletions

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@ -0,0 +1,219 @@
/*
* Helma License Notice
*
* The contents of this file are subject to the Helma License
* Version 2.0 (the "License"). You may not use this file except in
* compliance with the License. A copy of the License is available at
* http://adele.helma.org/download/helma/license.txt
*
* Copyright 1998-2003 Helma Software. All Rights Reserved.
*
* $RCSfile$
* $Author$
* $Revision$
* $Date$
*/
package helma.scripting.rhino;
import helma.framework.repository.Resource;
import java.io.IOException;
import java.io.StringReader;
import java.util.ArrayList;
import java.util.StringTokenizer;
/**
* Support for .hac (action) and .hsp (template) files
*/
public class HacHspConverter {
public static String convertHac(Resource action) throws IOException {
String functionName = action.getShortName().replace('.', '_') + "_action";
return composeFunction(functionName, null, action.getContent());
}
public static String convertHsp(Resource template) throws IOException {
String functionName = template.getShortName().replace('.', '_');
String body = processHspBody(template.getContent());
return composeFunction(functionName,
"arg1, arg2, arg3, arg4, arg5, arg6, arg7, arg8, arg9, arg10",
body);
}
public static String convertHspAsString(Resource template) throws IOException {
String functionName = template.getShortName().replace('.', '_') + "_as_string";
String body = processHspBody(template.getContent());
return composeFunction(functionName,
"arg1, arg2, arg3, arg4, arg5, arg6, arg7, arg8, arg9, arg10",
"res.pushStringBuffer(); " + body +
"\r\nreturn res.popStringBuffer();\r\n");
}
static String composeFunction(String funcname, String args, String body) {
if ((body == null) || "".equals(body.trim())) {
body = ";\r\n";
} else {
body = body + "\r\n";
}
StringBuffer f = new StringBuffer("function ");
f.append(funcname);
f.append(" (");
if (args != null)
f.append(args);
f.append(") {\n");
f.append(body);
f.append("\n}");
return f.toString();
}
static String processHspBody(String content) {
ArrayList partBuffer = new ArrayList();
char[] cnt = content.toCharArray();
int l = cnt.length;
if (l == 0) {
return "";
}
// if last character is whitespace, swallow it.
// this is necessary for some inner templates to look ok.
if (Character.isWhitespace(cnt[l - 1])) {
l -= 1;
}
int lastIdx = 0;
for (int i = 0; i < (l - 1); i++) {
if ((cnt[i] == '<') && (cnt[i + 1] == '%')) {
int j = i + 2;
while ((j < (l - 1)) && ((cnt[j] != '%') || (cnt[j + 1] != '>'))) {
j++;
}
if (j > (i + 2)) {
if ((i - lastIdx) > 0) {
partBuffer.add(new HspBodyPart(new String(cnt, lastIdx,
i - lastIdx), true));
}
String script = new String(cnt, i + 2, (j - i) - 2);
partBuffer.add(new HspBodyPart(script, false));
lastIdx = j + 2;
}
i = j + 1;
}
}
if (lastIdx < l) {
partBuffer.add(new HspBodyPart(new String(cnt, lastIdx, l - lastIdx),
true));
}
StringBuffer templateBody = new StringBuffer();
int nparts = partBuffer.size();
for (int k = 0; k < nparts; k++) {
HspBodyPart nextPart = (HspBodyPart) partBuffer.get(k);
if (nextPart.isStatic || nextPart.content.trim().startsWith("=")) {
// check for <%= ... %> statements
if (!nextPart.isStatic) {
nextPart.content = nextPart.content.trim().substring(1).trim();
// cut trailing ";"
while (nextPart.content.endsWith(";"))
nextPart.content = nextPart.content.substring(0,
nextPart.content.length() -
1);
}
StringTokenizer st = new StringTokenizer(nextPart.content, "\r\n", true);
String nextLine = st.hasMoreTokens() ? st.nextToken() : null;
// count newLines we "swallow", see explanation below
int newLineCount = 0;
templateBody.append("res.write (");
if (nextPart.isStatic) {
templateBody.append("\"");
}
while (nextLine != null) {
if ("\n".equals(nextLine)) {
// append a CRLF
newLineCount++;
templateBody.append("\\r\\n");
} else if (!"\r".equals(nextLine)) {
try {
StringReader lineReader = new StringReader(nextLine);
int c = lineReader.read();
while (c > -1) {
if (nextPart.isStatic &&
(((char) c == '"') || ((char) c == '\\'))) {
templateBody.append('\\');
}
templateBody.append((char) c);
c = lineReader.read();
}
} catch (IOException srx) {
}
}
nextLine = st.hasMoreTokens() ? st.nextToken() : null;
}
if (nextPart.isStatic) {
templateBody.append("\"");
}
templateBody.append("); ");
// append the number of lines we have "swallowed" into
// one write statement, so error messages will *approximately*
// give correct line numbers.
for (int i = 0; i < newLineCount; i++) {
templateBody.append("\r\n");
}
} else {
templateBody.append(nextPart.content);
if (!nextPart.content.trim().endsWith(";")) {
templateBody.append(";");
}
}
}
// templateBody.append ("\r\nreturn null;\r\n");
return templateBody.toString();
}
static class HspBodyPart {
String content;
boolean isPart;
boolean isStatic;
public HspBodyPart(String content, boolean isStatic) {
isPart = false;
this.content = content;
this.isStatic = isStatic;
}
public String getName() {
return isStatic ? null : content;
}
public String toString() {
return "Template.Part [" + content + "," + isStatic + "]";
}
}
}

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@ -1,78 +0,0 @@
/*
* Helma License Notice
*
* The contents of this file are subject to the Helma License
* Version 2.0 (the "License"). You may not use this file except in
* compliance with the License. A copy of the License is available at
* http://adele.helma.org/download/helma/license.txt
*
* Copyright 1998-2003 Helma Software. All Rights Reserved.
*
* $RCSfile$
* $Author$
* $Revision$
* $Date$
*/
package helma.scripting.rhino;
import helma.framework.repository.Resource;
import java.io.IOException;
/**
* An class that updates fesi interpreters with actionfiles and templates.
*/
public class RhinoActionAdapter {
String sourceName;
String function;
String functionAsString;
/**
* Creates a new RhinoActionAdapter object.
*
* @param action ...
*/
public RhinoActionAdapter(Resource action) throws IOException {
String content = action.getContent();
String functionName = action.getShortName().replace('.', '_');
sourceName = action.toString();
function = composeFunction(functionName + "_action",
"arg1, arg2, arg3, arg4, arg5, arg6, arg7, arg8, arg9, arg10",
content);
// check if this is a template and we need to generate an "_as_string" variant
if (action.getName().endsWith(".hsp")) {
functionAsString = composeFunction(functionName + "_as_string",
"arg1, arg2, arg3, arg4, arg5, arg6, arg7, arg8, arg9, arg10",
"res.pushStringBuffer(); " + content +
"\r\nreturn res.popStringBuffer();\r\n");
} else {
functionAsString = null;
}
}
protected String composeFunction(String funcname, String params, String body) {
if ((body == null) || "".equals(body.trim())) {
body = ";\r\n";
} else {
body = body + "\r\n";
}
if (params == null) {
params = "";
}
StringBuffer f = new StringBuffer("function ");
f.append(funcname);
f.append(" (");
f.append(params);
f.append(") {\n");
f.append(body);
f.append("\n}");
return f.toString();
}
}

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@ -787,8 +787,12 @@ public final class RhinoCore implements ScopeProvider {
reader = new InputStreamReader(code.getInputStream());
cx.evaluateReader(op, reader, sourceName, 1, null);
} else if (sourceName.endsWith(".hac")) {
RhinoActionAdapter raa = new RhinoActionAdapter(code);
reader = new StringReader(raa.function);
reader = new StringReader(HacHspConverter.convertHac(code));
cx.evaluateReader(op, reader, sourceName, 0, null);
} else if (sourceName.endsWith(".hsp")) {
reader = new StringReader(HacHspConverter.convertHsp(code));
cx.evaluateReader(op, reader, sourceName, 0, null);
reader = new StringReader(HacHspConverter.convertHspAsString(code));
cx.evaluateReader(op, reader, sourceName, 0, null);
}