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Refactored PdePreprocessor class

This commit is contained in:
Cristian Maglie 2013-01-23 11:39:35 +01:00
parent 8a8bb44745
commit 316b871829
2 changed files with 72 additions and 106 deletions
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84
app/src/processing/app/Sketch.java
View File

@ -1339,7 +1339,6 @@ public class Sketch {
// make sure the user didn't hide the sketch folder
ensureExistence();
String[] codeFolderPackages = null;
classPath = buildPath;
// // figure out the contents of the code folder to see if there
@ -1381,12 +1380,8 @@ public class Sketch {
// Note that the headerOffset isn't applied until compile and run, because
// it only applies to the code after it's been written to the .java file.
int headerOffset = 0;
//PdePreprocessor preprocessor = new PdePreprocessor();
try {
headerOffset = preprocessor.writePrefix(bigCode.toString(),
buildPath,
name,
codeFolderPackages);
headerOffset = preprocessor.writePrefix(bigCode.toString());
} catch (FileNotFoundException fnfe) {
fnfe.printStackTrace();
String msg = _("Build folder disappeared or could not be written");
@ -1399,24 +1394,14 @@ public class Sketch {
String primaryClassName = null;
try {
// if (i != 0) preproc will fail if a pde file is not
// java mode, since that's required
String className = preprocessor.write();
if (className == null) {
throw new RunnerException(_("Could not find main class"));
// this situation might be perfectly fine,
// (i.e. if the file is empty)
//System.out.println("No class found in " + code[i].name);
//System.out.println("(any code in that file will be ignored)");
//System.out.println();
// } else {
// code[0].setPreprocName(className + ".java");
}
// Output file
File streamFile = new File(buildPath, name + ".cpp");
FileOutputStream outputStream = new FileOutputStream(streamFile);
preprocessor.write(outputStream);
outputStream.close();
// store this for the compiler and the runtime
primaryClassName = className + ".cpp";
primaryClassName = name + ".cpp";
} catch (FileNotFoundException fnfe) {
fnfe.printStackTrace();
@ -1668,58 +1653,7 @@ public class Sketch {
return success ? suggestedClassName : null;
}
/**
* Replace all commented portions of a given String as spaces.
* Utility function used here and in the preprocessor.
*/
static public String scrubComments(String what) {
char p[] = what.toCharArray();
int index = 0;
while (index < p.length) {
// for any double slash comments, ignore until the end of the line
if ((p[index] == '/') &&
(index < p.length - 1) &&
(p[index+1] == '/')) {
p[index++] = ' ';
p[index++] = ' ';
while ((index < p.length) &&
(p[index] != '\n')) {
p[index++] = ' ';
}
// check to see if this is the start of a new multiline comment.
// if it is, then make sure it's actually terminated somewhere.
} else if ((p[index] == '/') &&
(index < p.length - 1) &&
(p[index+1] == '*')) {
p[index++] = ' ';
p[index++] = ' ';
boolean endOfRainbow = false;
while (index < p.length - 1) {
if ((p[index] == '*') && (p[index+1] == '/')) {
p[index++] = ' ';
p[index++] = ' ';
endOfRainbow = true;
break;
} else {
// continue blanking this area
p[index++] = ' ';
}
}
if (!endOfRainbow) {
throw new RuntimeException(_("Missing the */ from the end of a " +
"/* comment */"));
}
} else { // any old character, move along
index++;
}
}
return new String(p);
}
public boolean exportApplicationPrompt() throws IOException, RunnerException {
return false;
}

94
app/src/processing/app/preproc/PdePreprocessor.java
View File

@ -29,6 +29,7 @@
package processing.app.preproc;
import static processing.app.I18n._;
import processing.app.*;
import processing.core.*;
@ -61,38 +62,22 @@ public class PdePreprocessor {
// than the others, since the imports are auto-generated.
List<String> codeFolderImports;
String indent;
PrintStream stream;
String program;
String buildPath;
// starts as sketch name, ends as main class name
String name;
/**
* Setup a new preprocessor.
*/
public PdePreprocessor() {
int tabSize = Preferences.getInteger("editor.tabs.size");
char[] indentChars = new char[tabSize];
Arrays.fill(indentChars, ' ');
indent = new String(indentChars);
}
/**
* Writes out the head of the c++ code generated for a sketch.
* Called from processing.app.Sketch.
* @param program the concatenated code from all tabs containing pde-files
* @param buildPath the path into which the processed pde-code is to be written
* @param name the name of the sketch
* @param codeFolderPackages unused param (leftover from processing)
*/
public int writePrefix(String program, String buildPath,
String sketchName, String codeFolderPackages[]) throws FileNotFoundException {
this.buildPath = buildPath;
this.name = sketchName;
public int writePrefix(String program)
throws FileNotFoundException {
// if the program ends with no CR or LF an OutOfMemoryError will happen.
// not gonna track down the bug now, so here's a hack for it:
// http://dev.processing.org/bugs/show_bug.cgi?id=5
@ -102,7 +87,7 @@ public class PdePreprocessor {
// an OutOfMemoryError or NullPointerException will happen.
// again, not gonna bother tracking this down, but here's a hack.
// http://dev.processing.org/bugs/show_bug.cgi?id=16
Sketch.scrubComments(program);
scrubComments(program);
// If there are errors, an exception is thrown and this fxn exits.
if (Preferences.getBoolean("preproc.substitute_unicode")) {
@ -134,10 +119,6 @@ public class PdePreprocessor {
// do this after the program gets re-combobulated
this.program = program;
// output the code
File streamFile = new File(buildPath, name + ".cpp");
stream = new PrintStream(new FileOutputStream(streamFile));
return headerCount + prototypeCount;
}
@ -181,17 +162,16 @@ public class PdePreprocessor {
}
/**
* preprocesses a pde file and writes out a java file
* @return the classname of the exported Java
* preprocesses a pde file and writes out a cpp file into the specified
* OutputStream
*
* @param output
* @throws Exception
*/
//public String write(String program, String buildPath, String name,
// String extraImports[]) throws java.lang.Exception {
public String write() throws java.lang.Exception {
public void write(OutputStream output) throws Exception {
PrintStream stream = new PrintStream(output);
writeProgram(stream, program, prototypes);
writeFooter(stream);
stream.close();
return name;
}
// Write the pde program to the cpp file
@ -344,4 +324,56 @@ public class PdePreprocessor {
return functionMatches;
}
/**
* Replace all commented portions of a given String as spaces.
* Utility function used here and in the preprocessor.
*/
static public String scrubComments(String what) {
char p[] = what.toCharArray();
int index = 0;
while (index < p.length) {
// for any double slash comments, ignore until the end of the line
if ((p[index] == '/') &&
(index < p.length - 1) &&
(p[index+1] == '/')) {
p[index++] = ' ';
p[index++] = ' ';
while ((index < p.length) &&
(p[index] != '\n')) {
p[index++] = ' ';
}
// check to see if this is the start of a new multiline comment.
// if it is, then make sure it's actually terminated somewhere.
} else if ((p[index] == '/') &&
(index < p.length - 1) &&
(p[index+1] == '*')) {
p[index++] = ' ';
p[index++] = ' ';
boolean endOfRainbow = false;
while (index < p.length - 1) {
if ((p[index] == '*') && (p[index+1] == '/')) {
p[index++] = ' ';
p[index++] = ' ';
endOfRainbow = true;
break;
} else {
// continue blanking this area
p[index++] = ' ';
}
}
if (!endOfRainbow) {
throw new RuntimeException(_("Missing the */ from the end of a " +
"/* comment */"));
}
} else { // any old character, move along
index++;
}
}
return new String(p);
}
}