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//===--- HTMLPrint.cpp - Source code -> HTML pretty-printing --------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// Pretty-printing of source code to HTML.
//
//===----------------------------------------------------------------------===//
#include "ASTConsumers.h"
#include "clang/AST/ASTConsumer.h"
#include "clang/AST/Decl.h"
#include "clang/Rewrite/Rewriter.h"
#include "clang/Rewrite/HTMLRewrite.h"
#include "clang/Basic/Diagnostic.h"
#include "clang/Basic/SourceManager.h"
#include "clang/Basic/FileManager.h"
#include "clang/AST/ASTContext.h"
using namespace clang;
//===----------------------------------------------------------------------===//
// Functional HTML pretty-printing.
//===----------------------------------------------------------------------===//
namespace {
class HTMLPrinter : public ASTConsumer {
Rewriter R;
std::string OutFilename;
Diagnostic &Diags;
Preprocessor *PP;
PreprocessorFactory *PPF;
public:
HTMLPrinter(const std::string &OutFile, Diagnostic &D, Preprocessor *pp,
PreprocessorFactory* ppf)
: OutFilename(OutFile), Diags(D), PP(pp), PPF(ppf) {}
virtual ~HTMLPrinter();
void Initialize(ASTContext &context);
};
}
ASTConsumer* clang::CreateHTMLPrinter(const std::string &OutFile,
Diagnostic &D, Preprocessor *PP,
PreprocessorFactory* PPF) {
return new HTMLPrinter(OutFile, D, PP, PPF);
}
void HTMLPrinter::Initialize(ASTContext &context) {
R.setSourceMgr(context.getSourceManager());
}
HTMLPrinter::~HTMLPrinter() {
if (Diags.hasErrorOccurred())
return;
// Format the file.
unsigned FileID = R.getSourceMgr().getMainFileID();
const FileEntry* Entry = R.getSourceMgr().getFileEntryForID(FileID);
html::AddLineNumbers(R, FileID);
html::AddHeaderFooterInternalBuiltinCSS(R, FileID, Entry->getName());
// If we have a preprocessor, relex the file and syntax highlight.
// We might not have a preprocessor if we come from a deserialized AST file,
// for example.
if (PP) html::SyntaxHighlight(R, FileID, *PP);
if (PPF) html::HighlightMacros(R, FileID, *PP);
html::EscapeText(R, FileID, false, true);
// Open the output.
FILE *OutputFILE;
if (OutFilename.empty() || OutFilename == "-")
OutputFILE = stdout;
else {
OutputFILE = fopen(OutFilename.c_str(), "w+");
if (OutputFILE == 0) {
fprintf(stderr, "Error opening output file '%s'.\n", OutFilename.c_str());
exit(1);
}
}
// Emit the HTML.
const RewriteBuffer &RewriteBuf = R.getEditBuffer(FileID);
char *Buffer = (char*)malloc(RewriteBuf.size());
std::copy(RewriteBuf.begin(), RewriteBuf.end(), Buffer);
fwrite(Buffer, 1, RewriteBuf.size(), OutputFILE);
free(Buffer);
if (OutputFILE != stdout) fclose(OutputFILE);
}
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