1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
|
/******************************************************************************
*
*
*
* Copyright (C) 1997-2014 by Dimitri van Heesch.
*
* Permission to use, copy, modify, and distribute this software and its
* documentation under the terms of the GNU General Public License is hereby
* granted. No representations are made about the suitability of this software
* for any purpose. It is provided "as is" without express or implied warranty.
* See the GNU General Public License for more details.
*
* Documents produced by Doxygen are derivative works derived from the
* input used in their production; they are not affected by this license.
*
*/
#ifndef PARSERINTF_H
#define PARSERINTF_H
#include <qdict.h>
#include <qstrlist.h>
#include "types.h"
class Entry;
class FileDef;
class CodeOutputInterface;
class MemberDef;
class Definition;
/** \brief Abstract interface for programming language parsers.
*
* By implementing the methods of this interface one can add
* a new language parser to doxygen. The parser can make use of the
* comment block parser to parse the contents of special comment blocks.
*/
class ParserInterface
{
public:
virtual ~ParserInterface() {}
/** Starts processing a translation unit (source files + headers).
* After this call parseInput() is called with sameTranslationUnit
* set to FALSE. If parseInput() returns additional include files,
* these are also processed using parseInput() with
* sameTranslationUnit set to TRUE. After that
* finishTranslationUnit() is called.
*/
virtual void startTranslationUnit(const char *fileName) = 0;
/** Called after all files in a translation unit have been
* processed.
*/
virtual void finishTranslationUnit() = 0;
/** Parses a single input file with the goal to build an Entry tree.
* @param[in] fileName The full name of the file.
* @param[in] fileBuf The contents of the file (zero terminated).
* @param[in,out] root The root of the tree of Entry *nodes
* representing the information extracted from the file.
* @param[in] sameTranslationUnit TRUE if this file was found in the same
* translation unit (in the filesInSameTranslationUnit list
* returned for another file).
* @param[in,out] filesInSameTranslationUnit other files expected to be
* found in the same translation unit (used for libclang)
*/
virtual void parseInput(const char *fileName,
const char *fileBuf,
Entry *root,
bool sameTranslationUnit,
QStrList &filesInSameTranslationUnit) = 0;
/** Returns TRUE if the language identified by \a extension needs
* the C preprocessor to be run before feed the result to the input
* parser.
* @see parseInput()
*/
virtual bool needsPreprocessing(const QCString &extension) = 0;
/** Parses a source file or fragment with the goal to produce
* highlighted and cross-referenced output.
* @param[in] codeOutIntf Abstract interface for writing the result.
* @param[in] lang The programming language of the code fragment.
* @param[in] scopeName Name of scope to which the code belongs.
* @param[in] input Actual code in the form of a string
* @param[in] isExampleBlock TRUE iff the code is part of an example.
* @param[in] exampleName Name of the example.
* @param[in] fileDef File definition to which the code
* is associated.
* @param[in] startLine Starting line in case of a code fragment.
* @param[in] endLine Ending line of the code fragment.
* @param[in] inlineFragment Code fragment that is to be shown inline
* as part of the documentation.
* @param[in] memberDef Member definition to which the code
* is associated (non null in case of an inline fragment
* for a member).
* @param[in] showLineNumbers if set to TRUE and also fileDef is not 0,
* line numbers will be added to the source fragement
* @param[in] searchCtx context under which search data has to be stored.
* @param[in] collectXRefs collect cross-reference relations.
*/
virtual void parseCode(CodeOutputInterface &codeOutIntf,
const char *scopeName,
const QCString &input,
SrcLangExt lang,
bool isExampleBlock,
const char *exampleName=0,
FileDef *fileDef=0,
int startLine=-1,
int endLine=-1,
bool inlineFragment=FALSE,
MemberDef *memberDef=0,
bool showLineNumbers=TRUE,
Definition *searchCtx=0,
bool collectXRefs=TRUE
) = 0;
/** Resets the state of the code parser.
* Since multiple code fragments can together form a single example, an
* explicit function is used to reset the code parser state.
* @see parseCode()
*/
virtual void resetCodeParserState() = 0;
/** Callback function called by the comment block scanner.
* It provides a string \a text containing the prototype of a function
* or variable. The parser should parse this and store the information
* in the Entry node that corresponds with the node for which the
* comment block parser was invoked.
*/
virtual void parsePrototype(const char *text) = 0;
};
//-----------------------------------------------------------------------------
/** \brief Manages programming language parsers.
*
* This class manages the language parsers in the system. One can
* register parsers, and obtain a parser given a file extension.
*/
class ParserManager
{
public:
/** Creates the parser manager object.
*/
ParserManager()
: m_defaultParser(0) { m_parsers.setAutoDelete(TRUE); }
/** Registers an additional parser.
* @param[in] name A symbolic name of the parser, i.e. "c",
* "python", "fortran", "vhdl", ...
* @param[in] parser The parser that is to be used for the
* given name.
* @param[in] defParser Use this parser as the default parser, used
* for unregistered file extensions.
*/
void registerParser(const char *name,ParserInterface *parser,bool defParser=FALSE)
{
if (defParser && m_defaultParser==0) m_defaultParser=parser;
m_parsers.insert(name,parser);
}
/** Registers a file \a extension with a parser with name \a parserName.
* Returns TRUE if the extension was successfully registered.
*/
bool registerExtension(const char *extension, const char *parserName)
{
if (parserName==0 || extension==0) return FALSE;
ParserInterface *intf = m_parsers.find(parserName);
if (intf==0) return FALSE;
if (m_extensions.find(extension)!=0) // extension already exists
{
m_extensions.remove(extension); // remove it
}
m_extensions.insert(extension,intf); // add new mapping
return TRUE;
}
/** Gets the interface to the parser associated with given \a extension.
* If there is no parser explicitly registered for the supplied extension,
* the interface to the default parser will be returned.
*/
ParserInterface *getParser(const char *extension)
{
QCString ext = QCString(extension).lower();
if (ext.isEmpty()) ext=".no_extension";
ParserInterface *intf = m_extensions.find(ext);
if (intf==0 && ext.length()>4)
{
intf = m_extensions.find(ext.left(4));
}
return intf ? intf : m_defaultParser;
}
private:
QDict<ParserInterface> m_parsers;
QDict<ParserInterface> m_extensions;
ParserInterface *m_defaultParser;
};
#endif
|
