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gerrit-public.fairphone.software / platform / external / clang / eeacc5203ae1defadbe647b3b22b0432e23f4393 / . / lib / Rewrite / HTMLRewrite.cpp
blob: 76c44b718cf30337e9902b52c92ecfe79795f01f [file] [log] [blame]
Ted Kremenek6a340832008-03-18 21:19:49 +0000[diff] [blame]1//== HTMLRewrite.cpp - Translate source code into prettified HTML --*- C++ -*-//
2//
3// The LLVM Compiler Infrastructure
4//
5// This file is distributed under the University of Illinois Open Source
6// License. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9//
10// This file defines the HTMLRewriter clas, which is used to translate the
11// text of a source file into prettified HTML.
12//
13//===----------------------------------------------------------------------===//
14
15#include "clang/Rewrite/Rewriter.h"
16#include "clang/Rewrite/HTMLRewrite.h"
17#include "clang/Basic/SourceManager.h"
18#include "llvm/Support/MemoryBuffer.h"
19#include <sstream>
20
21using namespace clang;
22
23void html::EscapeText(Rewriter& R, unsigned FileID, bool EscapeSpaces) {
24
25 const llvm::MemoryBuffer *Buf = R.getSourceMgr().getBuffer(FileID);
26 const char* C = Buf->getBufferStart();
27 const char* FileEnd = Buf->getBufferEnd();
28
29 assert (C <= FileEnd);
30
31 for (unsigned FilePos = 0; C != FileEnd ; ++C, ++FilePos) {
32
33 SourceLocation Loc = SourceLocation::getFileLoc(FileID, FilePos);
34
35 switch (*C) {
36 default: break;
37
38 case ' ':
39 if (EscapeSpaces) R.ReplaceText(Loc, 1, "&#32;", 5);
40 break;
41
42 case '<': R.ReplaceText(Loc, 1, "&lt;", 4); break;
43 case '>': R.ReplaceText(Loc, 1, "&gt;", 4); break;
44 case '&': R.ReplaceText(Loc, 1, "&amp;", 5); break;
45 }
46 }
47}
48
Ted Kremenekb485cd12008-03-18 23:08:51 +0000[diff] [blame]49static void AddLineNumber(Rewriter& R, unsigned LineNo,
50 SourceLocation B, SourceLocation E) {
Ted Kremenekf8309972008-03-19 01:30:02 +0000[diff] [blame]51
Ted Kremeneke8e019e2008-03-19 21:59:05 +0000[diff] [blame]52 // Put the closing </tr> first.
Ted Kremenek13e479b2008-03-19 07:53:42 +0000[diff] [blame]53
Ted Kremeneke8e019e2008-03-19 21:59:05 +0000[diff] [blame]54 R.InsertCStrBefore(E, "</tr>");
Ted Kremenekb485cd12008-03-18 23:08:51 +0000[diff] [blame]55
Ted Kremenekd6c13602008-03-19 05:07:26 +0000[diff] [blame]56 if (B == E) // Handle empty lines.
Ted Kremeneke8e019e2008-03-19 21:59:05 +0000[diff] [blame]57 R.InsertCStrBefore(B, "<td class=\"line\"> </td>");
Ted Kremenekd6c13602008-03-19 05:07:26 +0000[diff] [blame]58 else {
Ted Kremeneke8e019e2008-03-19 21:59:05 +0000[diff] [blame]59 R.InsertCStrBefore(E, "</td>");
60 R.InsertCStrBefore(B, "<td class=\"line\">");
Ted Kremenekd6c13602008-03-19 05:07:26 +0000[diff] [blame]61 }
Ted Kremenekf8309972008-03-19 01:30:02 +0000[diff] [blame]62
Ted Kremenekd6c13602008-03-19 05:07:26 +0000[diff] [blame]63 // Insert a div tag for the line number.
64
Ted Kremenekb485cd12008-03-18 23:08:51 +0000[diff] [blame]65 std::ostringstream os;
Ted Kremeneke8e019e2008-03-19 21:59:05 +0000[diff] [blame]66 os << "<td class=\"num\">" << LineNo << "</td>";
Ted Kremenekd6c13602008-03-19 05:07:26 +0000[diff] [blame]67
68 R.InsertStrBefore(B, os.str());
69
Ted Kremeneke8e019e2008-03-19 21:59:05 +0000[diff] [blame]70 // Now prepend the <tr>.
Ted Kremenekd6c13602008-03-19 05:07:26 +0000[diff] [blame]71
Ted Kremeneke8e019e2008-03-19 21:59:05 +0000[diff] [blame]72 R.InsertCStrBefore(B, "<tr>");
Ted Kremenek13e479b2008-03-19 07:53:42 +0000[diff] [blame]73
Ted Kremenekb485cd12008-03-18 23:08:51 +0000[diff] [blame]74}
75
76void html::AddLineNumbers(Rewriter& R, unsigned FileID) {
77
78 const llvm::MemoryBuffer *Buf = R.getSourceMgr().getBuffer(FileID);
79 const char* FileBeg = Buf->getBufferStart();
80 const char* FileEnd = Buf->getBufferEnd();
81 const char* C = FileBeg;
82
83 assert (C <= FileEnd);
84
85 unsigned LineNo = 0;
86 unsigned FilePos = 0;
87
88 while (C != FileEnd) {
89
90 ++LineNo;
91 unsigned LineStartPos = FilePos;
92 unsigned LineEndPos = FileEnd - FileBeg;
93
94 assert (FilePos <= LineEndPos);
95 assert (C < FileEnd);
96
97 // Scan until the newline (or end-of-file).
98
99 for ( ; C != FileEnd ; ++C, ++FilePos)
100 if (*C == '\n') {
101 LineEndPos = FilePos;
102 break;
103 }
104
105 AddLineNumber(R, LineNo,
106 SourceLocation::getFileLoc(FileID, LineStartPos),
107 SourceLocation::getFileLoc(FileID, LineEndPos));
108
109 if (C != FileEnd) {
110 ++C;
111 ++FilePos;
112 }
Ted Kremenekd6c13602008-03-19 05:07:26 +0000[diff] [blame]113 }
114
115 // Add one big div tag that surrounds all of the code.
116
117 R.InsertCStrBefore(SourceLocation::getFileLoc(FileID, 0),
Ted Kremeneke8e019e2008-03-19 21:59:05 +0000[diff] [blame]118 "<table class=\"code\">\n");
Ted Kremenekd6c13602008-03-19 05:07:26 +0000[diff] [blame]119
120 R.InsertCStrAfter(SourceLocation::getFileLoc(FileID, FileEnd - FileBeg),
Ted Kremeneke8e019e2008-03-19 21:59:05 +0000[diff] [blame]121 "</table>");
Ted Kremenekb485cd12008-03-18 23:08:51 +0000[diff] [blame]122}
Ted Kremenekad0a2032008-03-19 06:14:37 +0000[diff] [blame]123
124void html::AddHeaderFooterInternalBuiltinCSS(Rewriter& R, unsigned FileID) {
125
126 const llvm::MemoryBuffer *Buf = R.getSourceMgr().getBuffer(FileID);
127 const char* FileStart = Buf->getBufferStart();
128 const char* FileEnd = Buf->getBufferEnd();
129
130 SourceLocation StartLoc = SourceLocation::getFileLoc(FileID, 0);
131 SourceLocation EndLoc = SourceLocation::getFileLoc(FileID, FileEnd-FileStart);
132
133 // Generate header
134
135 {
136 std::ostringstream os;
137
138 os << "<html>\n<head>\n"
Ted Kremenekeeacc522008-03-19 22:44:21 +0000[diff] [blame^]139 << "<style type=\"text/css\">\n"
140 << " body { color:#000000; background-color:#ffffff }\n"
Ted Kremeneke8e019e2008-03-19 21:59:05 +0000[diff] [blame]141 << " .code { border-spacing:0px; width:100%; }\n"
142 << " .code { font-family: \"Andale Mono\", fixed; font-size:10pt }\n"
143 << " .code { line-height: 1.2em }\n"
144 << " .num { width:2.5em; padding-right:2ex; background-color:#eeeeee }\n"
145 << " .num { text-align:right; font-size: smaller }\n"
146 << " .line { padding-left: 1ex; border-left: 3px solid #ccc }\n"
147 << " .line { white-space: pre }\n"
Ted Kremenekeeacc522008-03-19 22:44:21 +0000[diff] [blame^]148 << " .msg { background-color:#ff8000; color:#000000 }\n"
149 << " .msg { border: solid 1px #944a00 }\n"
Ted Kremeneke8e019e2008-03-19 21:59:05 +0000[diff] [blame]150 << " .msg { font-family:Helvetica, sans-serif; font-size: smaller }\n"
Ted Kremenekdb87ca02008-03-19 22:06:25 +0000[diff] [blame]151 << " .msg { font-weight: bold }\n"
Ted Kremeneke8e019e2008-03-19 21:59:05 +0000[diff] [blame]152 << " .msg { float:left }\n"
Ted Kremenekeeacc522008-03-19 22:44:21 +0000[diff] [blame^]153 << " .msg { padding:0.5em 1ex 0.5em 1ex }\n"
154 << " .msg { margin-top:10px; margin-bottom:10px }\n"
Ted Kremeneke8e019e2008-03-19 21:59:05 +0000[diff] [blame]155 << "</style>\n</head>\n<body>";
Ted Kremenekad0a2032008-03-19 06:14:37 +0000[diff] [blame]156
157 R.InsertStrBefore(StartLoc, os.str());
158 }
159
160 // Generate footer
161
162 {
163 std::ostringstream os;
164
165 os << "</body></html>\n";
166 R.InsertStrAfter(EndLoc, os.str());
167 }
168}
169
170