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//== 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, bool ReplaceTabs) {
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) {
switch (*C) {
default: break;
case ' ':
if (EscapeSpaces) {
SourceLocation Loc = SourceLocation::getFileLoc(FileID, FilePos);
R.ReplaceText(Loc, 1, " ", 6);
}
break;
case '\t': {
if (!ReplaceTabs)
break;
SourceLocation Loc = SourceLocation::getFileLoc(FileID, FilePos);
if (EscapeSpaces)
R.ReplaceText(Loc, 1, " ", 6*4);
else
R.ReplaceText(Loc, 1, " ", 4);
break;
}
case '<': {
SourceLocation Loc = SourceLocation::getFileLoc(FileID, FilePos);
R.ReplaceText(Loc, 1, "<", 4);
break;
}
case '>': {
SourceLocation Loc = SourceLocation::getFileLoc(FileID, FilePos);
R.ReplaceText(Loc, 1, ">", 4);
break;
}
case '&': {
SourceLocation Loc = SourceLocation::getFileLoc(FileID, FilePos);
R.ReplaceText(Loc, 1, "&", 5);
break;
}
}
}
}
std::string html::EscapeText(const std::string& s, bool EscapeSpaces,
bool ReplaceTabs) {
unsigned len = s.size();
std::ostringstream os;
for (unsigned i = 0 ; i < len; ++i) {
char c = s[i];
switch (c) {
default:
os << c; break;
case ' ':
if (EscapeSpaces) os << " ";
else os << ' ';
break;
case '\t':
if (ReplaceTabs)
for (unsigned i = 0; i < 4; ++i) os << " ";
else os << c;
break;
case '<': os << "<"; break;
case '>': os << ">"; break;
case '&': os << "&"; break;
}
}
return os.str();
}
static void AddLineNumber(Rewriter& R, unsigned LineNo,
SourceLocation B, SourceLocation E) {
std::ostringstream os;
os << "<tr><td class=\"num\" id=\"LN" << LineNo << "\">"
<< LineNo << "</td><td class=\"line\">";
if (B == E) { // Handle empty lines.
os << " </td></tr>";
R.InsertStrBefore(B, os.str());
}
else {
R.InsertStrBefore(B, os.str());
R.InsertCStrBefore(E, "</td></tr>");
}
}
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).
while (C != FileEnd) {
char c = *C;
++C;
if (c == '\n') {
LineEndPos = FilePos++;
break;
}
++FilePos;
}
AddLineNumber(R, LineNo,
SourceLocation::getFileLoc(FileID, LineStartPos),
SourceLocation::getFileLoc(FileID, LineEndPos));
}
// Add one big div tag that surrounds all of the code.
R.InsertCStrBefore(SourceLocation::getFileLoc(FileID, 0),
"<table class=\"code\">\n");
R.InsertCStrAfter(SourceLocation::getFileLoc(FileID, FileEnd - FileBeg),
"</table>");
}
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
R.InsertCStrBefore(StartLoc,
"<html>\n<head>\n"
"<style type=\"text/css\">\n"
" body { color:#000000; background-color:#ffffff }\n"
" body { font-family:Helvetica, sans-serif; font-size:10pt }\n"
" h1 { font-size:14pt }\n"
" .code { border-spacing:0px; width:100%; }\n"
" .code { font-family: \"Andale Mono\", monospace; 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"
" .num { color:#444444 }\n"
" .line { padding-left: 1ex; border-left: 3px solid #ccc }\n"
" .line { white-space: pre }\n"
" .msg { background-color:#fff8b4; color:#000000 }\n"
" .msg { -webkit-box-shadow:1px 1px 7px #000 }\n"
" .msg { -webkit-border-radius:5px }\n"
" .msg { font-family:Helvetica, sans-serif; font-size: smaller }\n"
" .msg { font-weight: bold }\n"
" .msg { float:left }\n"
" .msg { padding:0.5em 1ex 0.5em 1ex }\n"
" .msg { margin-top:10px; margin-bottom:10px }\n"
" .mrange { background-color:#dfddf3 }\n"
" .mrange { border-bottom:1px solid #6F9DBE }\n"
" .PathIndex { font-weight: bold }\n"
" table.simpletable {\n"
" padding: 5px;\n"
" font-size:12pt;\n"
" margin:20px;\n"
" border-collapse: collapse; border-spacing: 0px;\n"
" }\n"
" td.rowname {\n"
" text-align:right; font-weight:bold; color:#444444;\n"
" padding-right:2ex; }\n"
"</style>\n</head>\n<body>");
// Generate footer
R.InsertCStrAfter(EndLoc, "</body></html>\n");
}
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