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
|
/*****************************************************************************
*
*
*
* Copyright (C) 1997-2002 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.
*
*/
%{
#define YY_NEVER_INTERACTIVE 1
#include <stdio.h>
#include <stdlib.h>
#include "bufstr.h"
static BufStr *g_inBuf;
static BufStr *g_outBuf;
static int g_inBufPos;
static void replaceCommentMarker(const char *s,int len)
{
const char *p=s;
char c;
// copy blanks
while ((c=*p) && (c==' ' || c=='\t' || c=='\n'))
{
g_outBuf->addChar(c);
p++;
}
// replace start of comment marker by spaces
while ((c=*p) && (c=='/' || c=='!'))
{
g_outBuf->addChar(' ');
p++;
if (*p=='<') // comment-after-item marker
{
g_outBuf->addChar(' ');
p++;
}
if (c=='!') // end after first !
{
break;
}
}
// copy comment line to output
g_outBuf->addArray(p,len-(p-s));
}
static inline void copyToOutput(const char *s,int len)
{
g_outBuf->addArray(s,len);
}
#undef YY_INPUT
#define YY_INPUT(buf,result,max_size) result=yyread(buf,max_size);
static int yyread(char *buf,int max_size)
{
int bytesInBuf = g_inBuf->curPos()-g_inBufPos;
int bytesToCopy = QMIN(max_size,bytesInBuf);
memcpy(buf,g_inBuf->data()+g_inBufPos,bytesToCopy);
g_inBufPos+=bytesToCopy;
return bytesToCopy;
}
%}
%option noyywrap
%option nounput
%x Scan
%x SkipString
%x SComment
%x CComment
%x Verbatim
%%
<Scan>[^\"\/\n\\]* { /* eat anything that is not " / or \n */
copyToOutput(yytext,yyleng);
}
<Scan>"\"" { /* start of a string */
copyToOutput(yytext,yyleng);
BEGIN(SkipString);
}
<Scan>\n { /* new line */
copyToOutput(yytext,yyleng);
}
<Scan>("//!"|"///").*\n/[ \t]*"//" { /* start C++ style special comment block */
copyToOutput("/*!",3);
copyToOutput(yytext+3,yyleng-3);
BEGIN(SComment);
}
<Scan>"//".*\n { /* one line C++ comment */
copyToOutput(yytext,yyleng);
}
<Scan>"/*" { /* start of a C comment */
copyToOutput(yytext,yyleng);
BEGIN(CComment);
}
<Scan>"\\verbatim" { /* start of a verbatim block */
copyToOutput(yytext,yyleng);
BEGIN(Verbatim);
}
<Scan>. { /* any other character */
copyToOutput(yytext,yyleng);
}
<Verbatim>"\\endverbatim" { /* end of verbatim block */
copyToOutput(yytext,yyleng);
BEGIN(Scan);
}
<Verbatim>[^\\\n]* { /* any character not a backslash or new line */
copyToOutput(yytext,yyleng);
}
<Verbatim>\n { /* new line in verbatim block */
copyToOutput(yytext,yyleng);
}
<Verbatim>. { /* any other character */
copyToOutput(yytext,yyleng);
}
<SkipString>\\. { /* escaped character in string */
copyToOutput(yytext,yyleng);
}
<SkipString>"\"" { /* end of string */
copyToOutput(yytext,yyleng);
BEGIN(Scan);
}
<SkipString>. { /* any other string character */
copyToOutput(yytext,yyleng);
}
<SkipString>\n { /* new line inside string (illegal for some compilers) */
copyToOutput(yytext,yyleng);
}
<CComment>[^*\n]* { /* anything that is not a '*' */
copyToOutput(yytext,yyleng);
}
<CComment>"*"+[^*/\n]* { /* stars without slashes */
copyToOutput(yytext,yyleng);
}
<CComment>\n { /* new line in comment */
copyToOutput(yytext,yyleng);
}
<CComment>"*"+"/" { /* end of C comment */
copyToOutput(yytext,yyleng);
BEGIN(Scan);
}
<SComment>^[ \t]*"//".*/\n { /* second line of special comment */
replaceCommentMarker(yytext,yyleng);
}
<SComment>\n[ \t]*"//".*/\n { /* other line of special comment */
replaceCommentMarker(yytext,yyleng);
}
<SComment>\n { /* end of special comment */
copyToOutput(" */",3);
copyToOutput(yytext,yyleng);
BEGIN(Scan);
}
%%
void convertCppComments(BufStr *inBuf,BufStr *outBuf)
{
g_inBuf = inBuf;
g_outBuf = outBuf;
g_inBufPos = 0;
BEGIN(Scan);
yylex();
}
//----------------------------------------------------------------------------
extern "C" { // some bogus code to keep the compiler happy
void commentcnvYYdummy() { yy_flex_realloc(0,0); }
}
|
