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hanchenye-llvm-project/clang/lib/Rewrite/HTMLRewrite.cpp

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Added the beginning of a set of rewriter functions for pretty-printing source code as HTML. Added a new driver option "--emit-html" to dump the source of the main input file as HTML. llvm-svn: 48505
2008-03-19 05:19:49 +08:00
//== HTMLRewrite.cpp - Translate source code into prettified HTML --*- C++ -*-//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file defines the HTMLRewriter clas, which is used to translate the
// text of a source file into prettified HTML.
//
//===----------------------------------------------------------------------===//
#include "clang/Rewrite/Rewriter.h"
#include "clang/Rewrite/HTMLRewrite.h"
#include "clang/Basic/SourceManager.h"
#include "llvm/Support/MemoryBuffer.h"
#include <sstream>
using namespace clang;
void html::EscapeText(Rewriter& R, unsigned FileID, bool EscapeSpaces) {
const llvm::MemoryBuffer *Buf = R.getSourceMgr().getBuffer(FileID);
const char* C = Buf->getBufferStart();
const char* FileEnd = Buf->getBufferEnd();
assert (C <= FileEnd);
for (unsigned FilePos = 0; C != FileEnd ; ++C, ++FilePos) {
SourceLocation Loc = SourceLocation::getFileLoc(FileID, FilePos);
switch (*C) {
default: break;
case ' ':
if (EscapeSpaces) R.ReplaceText(Loc, 1, "&#32;", 5);
break;
case '<': R.ReplaceText(Loc, 1, "&lt;", 4); break;
case '>': R.ReplaceText(Loc, 1, "&gt;", 4); break;
case '&': R.ReplaceText(Loc, 1, "&amp;", 5); break;
}
}
}
Some cleanups to the HTMLRewrite API. Added support for printing out line numbers (more work to be done on aesthetics). llvm-svn: 48512
2008-03-19 07:08:51 +08:00
static void AddLineNumber(Rewriter& R, unsigned LineNo,
SourceLocation B, SourceLocation E) {
More cleanups to HTML rewriter API: remove the InsertTag method; was too complicated and clients can achieve a cleaner design just by inserting tags directly. Reserve the "html" namespace for meta-level operations (e.g., escaping text, etc.) llvm-svn: 48524
2008-03-19 09:30:02 +08:00
Misc. cleanups to HTML printing: make code rendered using tables; add better div positioning for messages. llvm-svn: 48555
2008-03-20 05:59:05 +08:00
// Put the closing </tr> first.
Initial experimentation with adding boxed "annotations" to HTMLized source. llvm-svn: 48540
2008-03-19 15:53:42 +08:00
Misc. cleanups to HTML printing: make code rendered using tables; add better div positioning for messages. llvm-svn: 48555
2008-03-20 05:59:05 +08:00
R.InsertCStrBefore(E, "</tr>");
More cleanups to HTML rewriter API: remove the InsertTag method; was too complicated and clients can achieve a cleaner design just by inserting tags directly. Reserve the "html" namespace for meta-level operations (e.g., escaping text, etc.) llvm-svn: 48524
2008-03-19 09:30:02 +08:00
More cleanups to the HTML rewriter (with line formatting), with better pretty-printing of line numbers. llvm-svn: 48533
2008-03-19 13:07:26 +08:00
if (B == E) // Handle empty lines.
Misc. cleanups to HTML printing: make code rendered using tables; add better div positioning for messages. llvm-svn: 48555
2008-03-20 05:59:05 +08:00
R.InsertCStrBefore(B, "<td class=\"line\"> </td>");
More cleanups to the HTML rewriter (with line formatting), with better pretty-printing of line numbers. llvm-svn: 48533
2008-03-19 13:07:26 +08:00
else {
Misc. cleanups to HTML printing: make code rendered using tables; add better div positioning for messages. llvm-svn: 48555
2008-03-20 05:59:05 +08:00
R.InsertCStrBefore(E, "</td>");
R.InsertCStrBefore(B, "<td class=\"line\">");
More cleanups to the HTML rewriter (with line formatting), with better pretty-printing of line numbers. llvm-svn: 48533
2008-03-19 13:07:26 +08:00
}
// Insert a div tag for the line number.
Some cleanups to the HTMLRewrite API. Added support for printing out line numbers (more work to be done on aesthetics). llvm-svn: 48512
2008-03-19 07:08:51 +08:00
std::ostringstream os;
Misc. cleanups to HTML printing: make code rendered using tables; add better div positioning for messages. llvm-svn: 48555
2008-03-20 05:59:05 +08:00
os << "<td class=\"num\">" << LineNo << "</td>";
More cleanups to the HTML rewriter (with line formatting), with better pretty-printing of line numbers. llvm-svn: 48533
2008-03-19 13:07:26 +08:00
R.InsertStrBefore(B, os.str());
Misc. cleanups to HTML printing: make code rendered using tables; add better div positioning for messages. llvm-svn: 48555
2008-03-20 05:59:05 +08:00
// Now prepend the <tr>.
More cleanups to the HTML rewriter (with line formatting), with better pretty-printing of line numbers. llvm-svn: 48533
2008-03-19 13:07:26 +08:00
Misc. cleanups to HTML printing: make code rendered using tables; add better div positioning for messages. llvm-svn: 48555
2008-03-20 05:59:05 +08:00
R.InsertCStrBefore(B, "<tr>");
Initial experimentation with adding boxed "annotations" to HTMLized source. llvm-svn: 48540
2008-03-19 15:53:42 +08:00
Some cleanups to the HTMLRewrite API. Added support for printing out line numbers (more work to be done on aesthetics). llvm-svn: 48512
2008-03-19 07:08:51 +08:00
}
void html::AddLineNumbers(Rewriter& R, unsigned FileID) {
const llvm::MemoryBuffer *Buf = R.getSourceMgr().getBuffer(FileID);
const char* FileBeg = Buf->getBufferStart();
const char* FileEnd = Buf->getBufferEnd();
const char* C = FileBeg;
assert (C <= FileEnd);
unsigned LineNo = 0;
unsigned FilePos = 0;
while (C != FileEnd) {
++LineNo;
unsigned LineStartPos = FilePos;
unsigned LineEndPos = FileEnd - FileBeg;
assert (FilePos <= LineEndPos);
assert (C < FileEnd);
// Scan until the newline (or end-of-file).
for ( ; C != FileEnd ; ++C, ++FilePos)
if (*C == '\n') {
LineEndPos = FilePos;
break;
}
AddLineNumber(R, LineNo,
SourceLocation::getFileLoc(FileID, LineStartPos),
SourceLocation::getFileLoc(FileID, LineEndPos));
if (C != FileEnd) {
++C;
++FilePos;
}
More cleanups to the HTML rewriter (with line formatting), with better pretty-printing of line numbers. llvm-svn: 48533
2008-03-19 13:07:26 +08:00
}
// Add one big div tag that surrounds all of the code.
R.InsertCStrBefore(SourceLocation::getFileLoc(FileID, 0),
Misc. cleanups to HTML printing: make code rendered using tables; add better div positioning for messages. llvm-svn: 48555
2008-03-20 05:59:05 +08:00
"<table class=\"code\">\n");
More cleanups to the HTML rewriter (with line formatting), with better pretty-printing of line numbers. llvm-svn: 48533
2008-03-19 13:07:26 +08:00
R.InsertCStrAfter(SourceLocation::getFileLoc(FileID, FileEnd - FileBeg),
Misc. cleanups to HTML printing: make code rendered using tables; add better div positioning for messages. llvm-svn: 48555
2008-03-20 05:59:05 +08:00
"</table>");
Some cleanups to the HTMLRewrite API. Added support for printing out line numbers (more work to be done on aesthetics). llvm-svn: 48512
2008-03-19 07:08:51 +08:00
}
Moved generation of html header/footer with builtin CSS to the rewriter library. llvm-svn: 48537
2008-03-19 14:14:37 +08:00
void html::AddHeaderFooterInternalBuiltinCSS(Rewriter& R, unsigned FileID) {
const llvm::MemoryBuffer *Buf = R.getSourceMgr().getBuffer(FileID);
const char* FileStart = Buf->getBufferStart();
const char* FileEnd = Buf->getBufferEnd();
SourceLocation StartLoc = SourceLocation::getFileLoc(FileID, 0);
SourceLocation EndLoc = SourceLocation::getFileLoc(FileID, FileEnd-FileStart);
// Generate header
{
std::ostringstream os;
os << "<html>\n<head>\n"
Misc. cleanups to HTML printing: make code rendered using tables; add better div positioning for messages. llvm-svn: 48555
2008-03-20 05:59:05 +08:00
<< "<style type=\"text/css\">\n"
<< " .code { border-spacing:0px; width:100%; }\n"
<< " .code { font-family: \"Andale Mono\", fixed; font-size:10pt }\n"
<< " .code { line-height: 1.2em }\n"
<< " .num { width:2.5em; padding-right:2ex; background-color:#eeeeee }\n"
<< " .num { text-align:right; font-size: smaller }\n"
<< " .line { padding-left: 1ex; border-left: 3px solid #ccc }\n"
<< " .line { white-space: pre }\n"
<< " .msg { background-color:#fcff4c }\n"
<< " .msg { font-family:Helvetica, sans-serif; font-size: smaller }\n"
More CSS enhancements to HTML code printing. llvm-svn: 48557
2008-03-20 06:06:25 +08:00
<< " .msg { font-weight: bold }\n"
Misc. cleanups to HTML printing: make code rendered using tables; add better div positioning for messages. llvm-svn: 48555
2008-03-20 05:59:05 +08:00
<< " .msg { float:left }\n"
<< " .msg { padding:5px; margin-top:10px; margin-bottom:10px }\n"
<< "</style>\n</head>\n<body>";
Moved generation of html header/footer with builtin CSS to the rewriter library. llvm-svn: 48537
2008-03-19 14:14:37 +08:00
R.InsertStrBefore(StartLoc, os.str());
}
// Generate footer
{
std::ostringstream os;
os << "</body></html>\n";
R.InsertStrAfter(EndLoc, os.str());
}
}