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