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/*****************************************************************************
*
*
*
* 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"
#include "debug.h"
#include "message.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 */
int i=3;
if (yytext[2]=='/')
{
while (i<yyleng && yytext[i]=='/') i++;
}
copyToOutput("/**",3);
copyToOutput(yytext+i,yyleng-i);
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 {
replaceCommentMarker(yytext,yyleng);
}
<SComment>\n[ \t]*"///"[\/]*/\n {
replaceCommentMarker(yytext,yyleng);
}
<SComment>^[ \t]*"///"[^\/\n].*/\n {
replaceCommentMarker(yytext,yyleng);
}
<SComment>\n[ \t]*"///"[^\/\n].*/\n {
replaceCommentMarker(yytext,yyleng);
}
<SComment>^[ \t]*"//!".*/\n {
replaceCommentMarker(yytext,yyleng);
}
<SComment>\n[ \t]*"//!".*/\n {
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();
if (Debug::isFlagSet(Debug::CommentCnv))
{
msg("-------------\n%s\n-------------\n",g_outBuf->data());
}
}
//----------------------------------------------------------------------------
extern "C" { // some bogus code to keep the compiler happy
void commentcnvYYdummy() { yy_flex_realloc(0,0); }
}
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