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|
/******************************************************************************
*
* Copyright (C) 1997-2020 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.
*
*/
%option never-interactive
%option prefix="preYY"
%option reentrant
%option extra-type="struct preYY_state *"
%top{
#include <stdint.h>
}
%{
/*
* includes
*/
#include "doxygen.h"
#include <stack>
#include <deque>
#include <algorithm>
#include <utility>
#include <mutex>
#include <thread>
#include <algorithm>
#include <stdio.h>
#include <assert.h>
#include <ctype.h>
#include <errno.h>
#include "qcstring.h"
#include "containers.h"
#include "pre.h"
#include "constexp.h"
#include "define.h"
#include "message.h"
#include "util.h"
#include "defargs.h"
#include "debug.h"
#include "bufstr.h"
#include "portable.h"
#include "bufstr.h"
#include "arguments.h"
#include "entry.h"
#include "condparser.h"
#include "config.h"
#include "filedef.h"
#include "regex.h"
#include "fileinfo.h"
#define YY_NO_UNISTD_H 1
#define USE_STATE2STRING 0
// Toggle for some debugging info
//#define DBG_CTX(x) fprintf x
#define DBG_CTX(x) do { } while(0)
#if USE_STATE2STRING
static const char *stateToString(int state);
#endif
struct CondCtx
{
CondCtx(int line,QCString id,bool b)
: lineNr(line),sectionId(id), skip(b) {}
int lineNr;
QCString sectionId;
bool skip;
};
struct FileState
{
FileState(int size) : fileBuf(size) {}
int lineNr = 1;
int curlyCount = 0;
BufStr fileBuf;
BufStr *oldFileBuf = 0;
yy_size_t oldFileBufPos = 0;
YY_BUFFER_STATE bufState = 0;
QCString fileName;
};
struct PreIncludeInfo
{
PreIncludeInfo(const QCString &fn,FileDef *srcFd, FileDef *dstFd,const QCString &iName,bool loc, bool imp)
: fileName(fn), fromFileDef(srcFd), toFileDef(dstFd), includeName(iName), local(loc), imported(imp)
{
}
QCString fileName; // file name in which the include statement was found
FileDef *fromFileDef; // filedef in which the include statement was found
FileDef *toFileDef; // filedef to which the include is pointing
QCString includeName; // name used in the #include statement
bool local; // is it a "local" or <global> include
bool imported; // include via "import" keyword (Objective-C)
};
/** A dictionary of managed Define objects. */
typedef std::map< std::string, Define > DefineMap;
/** @brief Class that manages the defines available while
* preprocessing files.
*/
class DefineManager
{
private:
/** Local class used to hold the defines for a single file */
class DefinesPerFile
{
public:
/** Creates an empty container for defines */
DefinesPerFile(DefineManager *parent)
: m_parent(parent)
{
}
void addInclude(std::string fileName)
{
m_includedFiles.insert(fileName);
}
void store(const DefineMap &fromMap)
{
for (auto &kv : fromMap)
{
m_defines.emplace(kv.first,kv.second);
}
//printf(" m_defines.size()=%zu\n",m_defines.size());
m_stored=true;
}
void retrieve(DefineMap &toMap)
{
StringSet includeStack;
retrieveRec(toMap,includeStack);
}
void retrieveRec(DefineMap &toMap,StringSet &includeStack)
{
//printf(" retrieveRec #includedFiles=%zu\n",m_includedFiles.size());
for (auto incFile : m_includedFiles)
{
DefinesPerFile *dpf = m_parent->find(incFile);
if (dpf && includeStack.find(incFile)==includeStack.end())
{
includeStack.insert(incFile);
dpf->retrieveRec(toMap,includeStack);
//printf(" retrieveRec: processing include %s: #toMap=%zu\n",qPrint(incFile),toMap.size());
}
}
for (auto &kv : m_defines)
{
toMap.emplace(kv.first,kv.second);
}
}
bool stored() const { return m_stored; }
private:
DefineManager *m_parent;
DefineMap m_defines;
StringSet m_includedFiles;
bool m_stored = false;
};
friend class DefinesPerFile;
public:
void addInclude(std::string fromFileName,std::string toFileName)
{
//printf("DefineManager::addInclude('%s'->'%s')\n",fromFileName.c_str(),toFileName.c_str());
auto it = m_fileMap.find(fromFileName);
if (it==m_fileMap.end())
{
it = m_fileMap.emplace(fromFileName,std::make_unique<DefinesPerFile>(this)).first;
}
auto &dpf = it->second;
dpf->addInclude(toFileName);
}
void store(std::string fileName,const DefineMap &fromMap)
{
//printf("DefineManager::store(%s,#=%zu)\n",fileName.c_str(),fromMap.size());
auto it = m_fileMap.find(fileName);
if (it==m_fileMap.end())
{
it = m_fileMap.emplace(fileName,std::make_unique<DefinesPerFile>(this)).first;
}
it->second->store(fromMap);
}
void retrieve(std::string fileName,DefineMap &toMap)
{
auto it = m_fileMap.find(fileName);
if (it!=m_fileMap.end())
{
auto &dpf = it->second;
dpf->retrieve(toMap);
}
//printf("DefineManager::retrieve(%s,#=%zu)\n",fileName.c_str(),toMap.size());
}
bool alreadyProcessed(std::string fileName) const
{
auto it = m_fileMap.find(fileName);
if (it!=m_fileMap.end())
{
return it->second->stored();
}
return false;
}
private:
/** Helper function to return the DefinesPerFile object for a given file name. */
DefinesPerFile *find(std::string fileName) const
{
auto it = m_fileMap.find(fileName);
return it!=m_fileMap.end() ? it->second.get() : nullptr;
}
std::unordered_map< std::string, std::unique_ptr<DefinesPerFile> > m_fileMap;
};
/* -----------------------------------------------------------------
*
* global state
*/
static std::mutex g_debugMutex;
static std::mutex g_globalDefineMutex;
static std::mutex g_updateGlobals;
static DefineManager g_defineManager;
/* -----------------------------------------------------------------
*
* scanner's state
*/
struct preYY_state
{
int yyLineNr = 1;
int yyMLines = 1;
int yyColNr = 1;
QCString yyFileName;
FileDef *yyFileDef = 0;
FileDef *inputFileDef = 0;
int ifcount = 0;
int defArgs = -1;
QCString defName;
QCString defText;
QCString defLitText;
QCString defArgsStr;
QCString defExtraSpacing;
bool defVarArgs = false;
int lastCContext = 0;
int lastCPPContext = 0;
BufStr *inputBuf = 0;
yy_size_t inputBufPos = 0;
BufStr *outputBuf = 0;
int roundCount = 0;
bool quoteArg = false;
int findDefArgContext = 0;
bool expectGuard = false;
QCString guardName;
QCString lastGuardName;
QCString incName;
QCString guardExpr;
int curlyCount = 0;
bool nospaces = false; // add extra spaces during macro expansion
bool macroExpansion = false; // from the configuration
bool expandOnlyPredef = false; // from the configuration
int commentCount = 0;
bool insideComment = false;
bool isImported = false;
QCString blockName;
int condCtx = 0;
bool skip = false;
bool insideCS = false; // C# has simpler preprocessor
bool insideFtn = false;
bool isSource = false;
yy_size_t fenceSize = 0;
bool ccomment = false;
QCString delimiter;
bool isSpecialComment = false;
StringVector pathList;
IntMap argMap;
BoolStack levelGuard;
std::stack< std::unique_ptr<CondCtx> > condStack;
std::deque< std::unique_ptr<FileState> > includeStack;
std::unordered_map<std::string,Define*> expandedDict;
StringUnorderedSet expanded;
ConstExpressionParser constExpParser;
DefineMap contextDefines; // macros imported from other files
DefineMap localDefines; // macros defined in this file
DefineList macroDefinitions;
LinkedMap<PreIncludeInfo> includeRelations;
};
// stateless functions
static QCString escapeAt(const QCString &text);
static QCString extractTrailingComment(const QCString &s);
static char resolveTrigraph(char c);
// statefull functions
static inline void outputArray(yyscan_t yyscanner,const char *a,yy_size_t len);
static inline void outputString(yyscan_t yyscanner,const QCString &s);
static inline void outputChar(yyscan_t yyscanner,char c);
static QCString expandMacro(yyscan_t yyscanner,const QCString &name);
static void readIncludeFile(yyscan_t yyscanner,const QCString &inc);
static void incrLevel(yyscan_t yyscanner);
static void decrLevel(yyscan_t yyscanner);
static void setCaseDone(yyscan_t yyscanner,bool value);
static bool otherCaseDone(yyscan_t yyscanner);
static bool computeExpression(yyscan_t yyscanner,const QCString &expr);
static void startCondSection(yyscan_t yyscanner,const QCString §Id);
static void endCondSection(yyscan_t yyscanner);
static void addMacroDefinition(yyscan_t yyscanner);
static void addDefine(yyscan_t yyscanner);
static void setFileName(yyscan_t yyscanner,const QCString &name);
static yy_size_t yyread(yyscan_t yyscanner,char *buf,yy_size_t max_size);
static Define * isDefined(yyscan_t yyscanner,const QCString &name);
/* ----------------------------------------------------------------- */
#undef YY_INPUT
#define YY_INPUT(buf,result,max_size) result=yyread(yyscanner,buf,max_size);
/* ----------------------------------------------------------------- */
%}
ID [a-z_A-Z\x80-\xFF][a-z_A-Z0-9\x80-\xFF]*
B [ \t]
Bopt {B}*
BN [ \t\r\n]
RAWBEGIN (u|U|L|u8)?R\"[^ \t\(\)\\]{0,16}"("
RAWEND ")"[^ \t\(\)\\]{0,16}\"
CHARLIT (("'"\\[0-7]{1,3}"'")|("'"\\."'")|("'"[^'\\\n]{1,4}"'"))
// C start comment
CCS "/\*"
// C end comment
CCE "*\/"
// Cpp comment
CPPC "/\/"
// optional characters after import
ENDIMPORTopt [^\\\n]*
// Optional white space
WSopt [ \t\r]*
%option noyywrap
%x Start
%x Command
%x SkipCommand
%x SkipLine
%x SkipString
%x CopyLine
%x LexCopyLine
%x CopyString
%x CopyStringCs
%x CopyStringFtn
%x CopyStringFtnDouble
%x CopyRawString
%x Include
%x IncludeID
%x EndImport
%x DefName
%x DefineArg
%x DefineText
%x SkipCPPBlock
%x Ifdef
%x Ifndef
%x SkipCComment
%x ArgCopyCComment
%x CopyCComment
%x SkipVerbatim
%x SkipCPPComment
%x RemoveCComment
%x RemoveCPPComment
%x Guard
%x DefinedExpr1
%x DefinedExpr2
%x SkipDoubleQuote
%x SkipSingleQuote
%x UndefName
%x IgnoreLine
%x FindDefineArgs
%x ReadString
%x CondLineC
%x CondLineCpp
%x SkipCond
%%
<*>\x06
<*>\x00
<*>\r
<*>"??"[=/'()!<>-] { // Trigraph
unput(resolveTrigraph(yytext[2]));
}
<Start>^{B}*"#" { BEGIN(Command); yyextra->yyColNr+=(int)yyleng; yyextra->yyMLines=0;}
<Start>^("%top{"|"%{") {
if (getLanguageFromFileName(yyextra->yyFileName)!=SrcLangExt_Lex) REJECT
outputArray(yyscanner,yytext,yyleng);
BEGIN(LexCopyLine);
}
<Start>^{Bopt}/[^#] {
outputArray(yyscanner,yytext,yyleng);
BEGIN(CopyLine);
}
<Start>^{B}*[a-z_A-Z\x80-\xFF][a-z_A-Z0-9\x80-\xFF]+{B}*"("[^\)\n]*")"/{BN}{1,10}*[:{] { // constructors?
int i;
for (i=(int)yyleng-1;i>=0;i--)
{
unput(yytext[i]);
}
BEGIN(CopyLine);
}
<Start>^{B}*[_A-Z][_A-Z0-9]+{B}*"("[^\(\)\n]*"("[^\)\n]*")"[^\)\n]*")"{B}*\n | // function list macro with one (...) argument, e.g. for K_GLOBAL_STATIC_WITH_ARGS
<Start>^{B}*[_A-Z][_A-Z0-9]+{B}*"("[^\)\n]*")"{B}*\n { // function like macro
bool skipFuncMacros = Config_getBool(SKIP_FUNCTION_MACROS);
QCString name(yytext);
name=name.left(name.find('(')).stripWhiteSpace();
Define *def=0;
if (skipFuncMacros && !yyextra->insideFtn &&
name!="Q_PROPERTY" &&
!(
(yyextra->includeStack.empty() || yyextra->curlyCount>0) &&
yyextra->macroExpansion &&
(def=isDefined(yyscanner,name)) &&
/*macroIsAccessible(def) &&*/
(!yyextra->expandOnlyPredef || def->isPredefined)
)
)
{
outputChar(yyscanner,'\n');
yyextra->yyLineNr++;
}
else // don't skip
{
int i;
for (i=(int)yyleng-1;i>=0;i--)
{
unput(yytext[i]);
}
BEGIN(CopyLine);
}
}
<CopyLine,LexCopyLine>"extern"{BN}{0,80}"\"C\""*{BN}{0,80}"{" {
QCString text=yytext;
yyextra->yyLineNr+=text.contains('\n');
outputArray(yyscanner,yytext,yyleng);
}
<CopyLine,LexCopyLine>{RAWBEGIN} {
yyextra->delimiter = yytext+2;
yyextra->delimiter=yyextra->delimiter.left(yyextra->delimiter.length()-1);
outputArray(yyscanner,yytext,yyleng);
BEGIN(CopyRawString);
}
<CopyLine,LexCopyLine>"{" { // count brackets inside the main file
if (yyextra->includeStack.empty())
{
yyextra->curlyCount++;
}
outputChar(yyscanner,*yytext);
}
<LexCopyLine>^"%}" {
outputArray(yyscanner,yytext,yyleng);
}
<CopyLine,LexCopyLine>"}" { // count brackets inside the main file
if (yyextra->includeStack.empty() && yyextra->curlyCount>0)
{
yyextra->curlyCount--;
}
outputChar(yyscanner,*yytext);
}
<CopyLine,LexCopyLine>"'"\\[0-7]{1,3}"'" {
outputArray(yyscanner,yytext,yyleng);
}
<CopyLine,LexCopyLine>"'"\\."'" {
outputArray(yyscanner,yytext,yyleng);
}
<CopyLine,LexCopyLine>"'"."'" {
outputArray(yyscanner,yytext,yyleng);
}
<CopyLine,LexCopyLine>@\" {
if (getLanguageFromFileName(yyextra->yyFileName)!=SrcLangExt_CSharp) REJECT;
outputArray(yyscanner,yytext,yyleng);
BEGIN( CopyStringCs );
}
<CopyLine,LexCopyLine>\" {
outputChar(yyscanner,*yytext);
if (getLanguageFromFileName(yyextra->yyFileName)!=SrcLangExt_Fortran)
{
BEGIN( CopyString );
}
else
{
BEGIN( CopyStringFtnDouble );
}
}
<CopyLine,LexCopyLine>\' {
if (getLanguageFromFileName(yyextra->yyFileName)!=SrcLangExt_Fortran) REJECT;
outputChar(yyscanner,*yytext);
BEGIN( CopyStringFtn );
}
<CopyString>[^\"\\\r\n]+ {
outputArray(yyscanner,yytext,yyleng);
}
<CopyStringCs>[^\"\r\n]+ {
outputArray(yyscanner,yytext,yyleng);
}
<CopyString>\\. {
outputArray(yyscanner,yytext,yyleng);
}
<CopyString,CopyStringCs>\" {
outputChar(yyscanner,*yytext);
BEGIN( CopyLine );
}
<CopyStringFtnDouble>[^\"\\\r\n]+ {
outputArray(yyscanner,yytext,yyleng);
}
<CopyStringFtnDouble>\\. {
outputArray(yyscanner,yytext,yyleng);
}
<CopyStringFtnDouble>\" {
outputChar(yyscanner,*yytext);
BEGIN( CopyLine );
}
<CopyStringFtn>[^\'\\\r\n]+ {
outputArray(yyscanner,yytext,yyleng);
}
<CopyStringFtn>\\. {
outputArray(yyscanner,yytext,yyleng);
}
<CopyStringFtn>\' {
outputChar(yyscanner,*yytext);
BEGIN( CopyLine );
}
<CopyRawString>{RAWEND} {
outputArray(yyscanner,yytext,yyleng);
QCString delimiter = yytext+1;
delimiter=delimiter.left(delimiter.length()-1);
if (delimiter==yyextra->delimiter)
{
BEGIN( CopyLine );
}
}
<CopyRawString>[^)]+ {
outputArray(yyscanner,yytext,yyleng);
}
<CopyRawString>. {
outputChar(yyscanner,*yytext);
}
<CopyLine,LexCopyLine>{ID}/{BN}{0,80}"(" {
yyextra->expectGuard = FALSE;
Define *def=0;
//def=yyextra->globalDefineDict->find(yytext);
//def=isDefined(yyscanner,yytext);
//printf("Search for define %s found=%d yyextra->includeStack.empty()=%d "
// "yyextra->curlyCount=%d yyextra->macroExpansion=%d yyextra->expandOnlyPredef=%d "
// "isPreDefined=%d\n",yytext,def ? 1 : 0,
// yyextra->includeStack.empty(),yyextra->curlyCount,yyextra->macroExpansion,yyextra->expandOnlyPredef,
// def ? def->isPredefined : -1
// );
if ((yyextra->includeStack.empty() || yyextra->curlyCount>0) &&
yyextra->macroExpansion &&
(def=isDefined(yyscanner,yytext)) &&
/*(def->isPredefined || macroIsAccessible(def)) && */
(!yyextra->expandOnlyPredef || def->isPredefined)
)
{
//printf("Found it! #args=%d\n",def->nargs);
yyextra->roundCount=0;
yyextra->defArgsStr=yytext;
if (def->nargs==-1) // no function macro
{
QCString result = def->isPredefined ? def->definition : expandMacro(yyscanner,yyextra->defArgsStr);
outputString(yyscanner,result);
}
else // zero or more arguments
{
yyextra->findDefArgContext = CopyLine;
BEGIN(FindDefineArgs);
}
}
else
{
outputArray(yyscanner,yytext,yyleng);
}
}
<CopyLine,LexCopyLine>{ID} {
Define *def=0;
if ((yyextra->includeStack.empty() || yyextra->curlyCount>0) &&
yyextra->macroExpansion &&
(def=isDefined(yyscanner,yytext)) &&
def->nargs==-1 &&
/*(def->isPredefined || macroIsAccessible(def)) &&*/
(!yyextra->expandOnlyPredef || def->isPredefined)
)
{
QCString result=def->isPredefined ? def->definition : expandMacro(yyscanner,yytext);
outputString(yyscanner,result);
}
else
{
outputArray(yyscanner,yytext,yyleng);
}
}
<CopyLine,LexCopyLine>"\\"\r?/\n { // strip line continuation characters
if (getLanguageFromFileName(yyextra->yyFileName)==SrcLangExt_Fortran) outputChar(yyscanner,*yytext);
}
<CopyLine,LexCopyLine>. {
outputChar(yyscanner,*yytext);
}
<CopyLine,LexCopyLine>\n {
outputChar(yyscanner,'\n');
BEGIN(Start);
yyextra->yyLineNr++;
yyextra->yyColNr=1;
}
<FindDefineArgs>"(" {
yyextra->defArgsStr+='(';
yyextra->roundCount++;
}
<FindDefineArgs>")" {
yyextra->defArgsStr+=')';
yyextra->roundCount--;
if (yyextra->roundCount==0)
{
QCString result=expandMacro(yyscanner,yyextra->defArgsStr);
//printf("yyextra->defArgsStr='%s'->'%s'\n",qPrint(yyextra->defArgsStr),qPrint(result));
if (yyextra->findDefArgContext==CopyLine)
{
outputString(yyscanner,result);
BEGIN(yyextra->findDefArgContext);
}
else // yyextra->findDefArgContext==IncludeID
{
readIncludeFile(yyscanner,result);
yyextra->nospaces=FALSE;
BEGIN(Start);
}
}
}
/*
<FindDefineArgs>")"{B}*"(" {
yyextra->defArgsStr+=yytext;
}
*/
<FindDefineArgs>{CHARLIT} {
yyextra->defArgsStr+=yytext;
}
<FindDefineArgs>{CCS}[*]? {
yyextra->defArgsStr+=yytext;
BEGIN(ArgCopyCComment);
}
<FindDefineArgs>\" {
yyextra->defArgsStr+=*yytext;
BEGIN(ReadString);
}
<FindDefineArgs>' {
if (getLanguageFromFileName(yyextra->yyFileName)!=SrcLangExt_Fortran) REJECT;
yyextra->defArgsStr+=*yytext;
BEGIN(ReadString);
}
<FindDefineArgs>\n {
yyextra->defArgsStr+=' ';
yyextra->yyLineNr++;
outputChar(yyscanner,'\n');
}
<FindDefineArgs>"@" {
yyextra->defArgsStr+="@@";
}
<FindDefineArgs>. {
yyextra->defArgsStr+=*yytext;
}
<ArgCopyCComment>[^*\n]+ {
yyextra->defArgsStr+=yytext;
}
<ArgCopyCComment>{CCE} {
yyextra->defArgsStr+=yytext;
BEGIN(FindDefineArgs);
}
<ArgCopyCComment>\n {
yyextra->defArgsStr+=' ';
yyextra->yyLineNr++;
outputChar(yyscanner,'\n');
}
<ArgCopyCComment>. {
yyextra->defArgsStr+=yytext;
}
<ReadString>"\"" {
yyextra->defArgsStr+=*yytext;
BEGIN(FindDefineArgs);
}
<ReadString>"'" {
if (getLanguageFromFileName(yyextra->yyFileName)!=SrcLangExt_Fortran) REJECT;
yyextra->defArgsStr+=*yytext;
BEGIN(FindDefineArgs);
}
<ReadString>{CPPC}|{CCS} {
yyextra->defArgsStr+=yytext;
}
<ReadString>\\/\r?\n { // line continuation
}
<ReadString>\\. {
yyextra->defArgsStr+=yytext;
}
<ReadString>. {
yyextra->defArgsStr+=*yytext;
}
<Command>("include"|"import"){B}+/{ID} {
yyextra->isImported = yytext[1]=='m';
if (yyextra->macroExpansion)
BEGIN(IncludeID);
}
<Command>("include"|"import"){B}*[<"] {
yyextra->isImported = yytext[1]=='m';
char c[2];
c[0]=yytext[yyleng-1];c[1]='\0';
yyextra->incName=c;
BEGIN(Include);
}
<Command>("cmake")?"define"{B}+ {
//printf("!!!DefName\n");
yyextra->yyColNr+=(int)yyleng;
BEGIN(DefName);
}
<Command>"ifdef"/{B}*"(" {
incrLevel(yyscanner);
yyextra->guardExpr.resize(0);
BEGIN(DefinedExpr2);
}
<Command>"ifdef"/{B}+ {
//printf("Pre.l: ifdef\n");
incrLevel(yyscanner);
yyextra->guardExpr.resize(0);
BEGIN(DefinedExpr1);
}
<Command>"ifndef"/{B}*"(" {
incrLevel(yyscanner);
yyextra->guardExpr="! ";
BEGIN(DefinedExpr2);
}
<Command>"ifndef"/{B}+ {
incrLevel(yyscanner);
yyextra->guardExpr="! ";
BEGIN(DefinedExpr1);
}
<Command>"if"/[ \t(!] {
incrLevel(yyscanner);
yyextra->guardExpr.resize(0);
BEGIN(Guard);
}
<Command>("elif"|"else"{B}*"if")/[ \t(!] {
if (!otherCaseDone(yyscanner))
{
yyextra->guardExpr.resize(0);
BEGIN(Guard);
}
else
{
yyextra->ifcount=0;
BEGIN(SkipCPPBlock);
}
}
<Command>"else"/[^a-z_A-Z0-9\x80-\xFF] {
if (otherCaseDone(yyscanner))
{
yyextra->ifcount=0;
BEGIN(SkipCPPBlock);
}
else
{
setCaseDone(yyscanner,TRUE);
}
}
<Command>"undef"{B}+ {
BEGIN(UndefName);
}
<Command>("elif"|"else"{B}*"if")/[ \t(!] {
if (!otherCaseDone(yyscanner))
{
yyextra->guardExpr.resize(0);
BEGIN(Guard);
}
}
<Command>"endif"/[^a-z_A-Z0-9\x80-\xFF] {
//printf("Pre.l: #endif\n");
decrLevel(yyscanner);
}
<Command,IgnoreLine>\n {
outputChar(yyscanner,'\n');
BEGIN(Start);
yyextra->yyLineNr++;
}
<Command>"pragma"{B}+"once" {
yyextra->expectGuard = FALSE;
}
<Command>{ID} { // unknown directive
BEGIN(IgnoreLine);
}
<IgnoreLine>\\[\r]?\n {
outputChar(yyscanner,'\n');
yyextra->yyLineNr++;
}
<IgnoreLine>.
<Command>. {yyextra->yyColNr+=(int)yyleng;}
<UndefName>{ID} {
Define *def;
if ((def=isDefined(yyscanner,yytext))
/*&& !def->isPredefined*/
&& !def->nonRecursive
)
{
//printf("undefining %s\n",yytext);
def->undef=TRUE;
}
BEGIN(Start);
}
<Guard>\\[\r]?\n {
outputChar(yyscanner,'\n');
yyextra->guardExpr+=' ';
yyextra->yyLineNr++;
}
<Guard>"defined"/{B}*"(" {
BEGIN(DefinedExpr2);
}
<Guard>"defined"/{B}+ {
BEGIN(DefinedExpr1);
}
<Guard>{ID} { yyextra->guardExpr+=yytext; }
<Guard>"@" { yyextra->guardExpr+="@@"; }
<Guard>. { yyextra->guardExpr+=*yytext; }
<Guard>\n {
unput(*yytext);
//printf("Guard: '%s'\n",
// qPrint(yyextra->guardExpr));
bool guard=computeExpression(yyscanner,yyextra->guardExpr);
setCaseDone(yyscanner,guard);
if (guard)
{
BEGIN(Start);
}
else
{
yyextra->ifcount=0;
BEGIN(SkipCPPBlock);
}
}
<DefinedExpr1,DefinedExpr2>\\\n { yyextra->yyLineNr++; outputChar(yyscanner,'\n'); }
<DefinedExpr1>{ID} {
if (isDefined(yyscanner,yytext) || yyextra->guardName==yytext)
yyextra->guardExpr+=" 1L ";
else
yyextra->guardExpr+=" 0L ";
yyextra->lastGuardName=yytext;
BEGIN(Guard);
}
<DefinedExpr2>{ID} {
if (isDefined(yyscanner,yytext) || yyextra->guardName==yytext)
yyextra->guardExpr+=" 1L ";
else
yyextra->guardExpr+=" 0L ";
yyextra->lastGuardName=yytext;
}
<DefinedExpr1,DefinedExpr2>\n { // should not happen, handle anyway
yyextra->yyLineNr++;
yyextra->ifcount=0;
BEGIN(SkipCPPBlock);
}
<DefinedExpr2>")" {
BEGIN(Guard);
}
<DefinedExpr1,DefinedExpr2>.
<SkipCPPBlock>^{B}*"#" { BEGIN(SkipCommand); }
<SkipCPPBlock>^{Bopt}/[^#] { BEGIN(SkipLine); }
<SkipCPPBlock>\n { yyextra->yyLineNr++; outputChar(yyscanner,'\n'); }
<SkipCPPBlock>.
<SkipCommand>"if"(("n")?("def"))?/[ \t(!] {
incrLevel(yyscanner);
yyextra->ifcount++;
//printf("#if... depth=%d\n",yyextra->ifcount);
}
<SkipCommand>"else" {
//printf("Else! yyextra->ifcount=%d otherCaseDone=%d\n",yyextra->ifcount,otherCaseDone());
if (yyextra->ifcount==0 && !otherCaseDone(yyscanner))
{
setCaseDone(yyscanner,TRUE);
//outputChar(yyscanner,'\n');
BEGIN(Start);
}
}
<SkipCommand>("elif"|"else"{B}*"if")/[ \t(!] {
if (yyextra->ifcount==0)
{
if (!otherCaseDone(yyscanner))
{
yyextra->guardExpr.resize(0);
yyextra->lastGuardName.resize(0);
BEGIN(Guard);
}
else
{
BEGIN(SkipCPPBlock);
}
}
}
<SkipCommand>"endif" {
yyextra->expectGuard = FALSE;
decrLevel(yyscanner);
if (--yyextra->ifcount<0)
{
//outputChar(yyscanner,'\n');
BEGIN(Start);
}
}
<SkipCommand>\n {
outputChar(yyscanner,'\n');
yyextra->yyLineNr++;
BEGIN(SkipCPPBlock);
}
<SkipCommand>{ID} { // unknown directive
BEGIN(SkipLine);
}
<SkipCommand>.
<SkipLine>[^'"/\n]+
<SkipLine>{CHARLIT} { }
<SkipLine>\" {
BEGIN(SkipString);
}
<SkipLine>.
<SkipString>{CPPC}/[^\n]* {
}
<SkipLine,SkipCommand,SkipCPPBlock>{CPPC}[^\n]* {
yyextra->lastCPPContext=YY_START;
BEGIN(RemoveCPPComment);
}
<SkipString>{CCS}/[^\n]* {
}
<SkipLine,SkipCommand,SkipCPPBlock>{CCS}/[^\n]* {
yyextra->lastCContext=YY_START;
BEGIN(RemoveCComment);
}
<SkipLine>\n {
outputChar(yyscanner,'\n');
yyextra->yyLineNr++;
BEGIN(SkipCPPBlock);
}
<SkipString>[^"\\\n]+ { }
<SkipString>\\. { }
<SkipString>\" {
BEGIN(SkipLine);
}
<SkipString>. { }
<IncludeID>{ID}{Bopt}/"(" {
yyextra->nospaces=TRUE;
yyextra->roundCount=0;
yyextra->defArgsStr=yytext;
yyextra->findDefArgContext = IncludeID;
BEGIN(FindDefineArgs);
}
<IncludeID>{ID} {
yyextra->nospaces=TRUE;
readIncludeFile(yyscanner,expandMacro(yyscanner,yytext));
BEGIN(Start);
}
<Include>[^\">\n]+[\">] {
yyextra->incName+=yytext;
readIncludeFile(yyscanner,yyextra->incName);
if (yyextra->isImported)
{
BEGIN(EndImport);
}
else
{
BEGIN(Start);
}
}
<EndImport>{ENDIMPORTopt}/\n {
BEGIN(Start);
}
<EndImport>\\[\r]?"\n" {
outputChar(yyscanner,'\n');
yyextra->yyLineNr++;
}
<EndImport>. {
}
<DefName>{ID}/("\\\n")*"(" { // define with argument
//printf("Define() '%s'\n",yytext);
yyextra->argMap.clear();
yyextra->defArgs = 0;
yyextra->defArgsStr.resize(0);
yyextra->defText.resize(0);
yyextra->defLitText.resize(0);
yyextra->defName = yytext;
yyextra->defVarArgs = FALSE;
yyextra->defExtraSpacing.resize(0);
BEGIN(DefineArg);
}
<DefName>{ID}{B}+"1"/[ \r\t\n] { // special case: define with 1 -> can be "guard"
//printf("Define '%s'\n",yytext);
yyextra->argMap.clear();
yyextra->defArgs = -1;
yyextra->defArgsStr.resize(0);
yyextra->defName = yytext;
yyextra->defName = yyextra->defName.left(yyextra->defName.length()-1).stripWhiteSpace();
yyextra->defVarArgs = FALSE;
//printf("Guard check: %s!=%s || %d\n",
// qPrint(yyextra->defName),qPrint(yyextra->lastGuardName),yyextra->expectGuard);
if (yyextra->curlyCount>0 || yyextra->defName!=yyextra->lastGuardName || !yyextra->expectGuard)
{ // define may appear in the output
QCString tmp=(QCString)"#define "+yyextra->defName;
outputString(yyscanner,tmp);
yyextra->quoteArg=FALSE;
yyextra->insideComment=FALSE;
yyextra->lastGuardName.resize(0);
yyextra->defText="1";
yyextra->defLitText="1";
BEGIN(DefineText);
}
else // define is a guard => hide
{
//printf("Found a guard %s\n",yytext);
yyextra->defText.resize(0);
yyextra->defLitText.resize(0);
BEGIN(Start);
}
yyextra->expectGuard=FALSE;
}
<DefName>{ID}/{B}*"\n" { // empty define
yyextra->argMap.clear();
yyextra->defArgs = -1;
yyextra->defName = yytext;
yyextra->defArgsStr.resize(0);
yyextra->defText.resize(0);
yyextra->defLitText.resize(0);
yyextra->defVarArgs = FALSE;
//printf("Guard check: %s!=%s || %d\n",
// qPrint(yyextra->defName),qPrint(yyextra->lastGuardName),yyextra->expectGuard);
if (yyextra->curlyCount>0 || yyextra->defName!=yyextra->lastGuardName || !yyextra->expectGuard)
{ // define may appear in the output
QCString tmp=(QCString)"#define "+yyextra->defName;
outputString(yyscanner,tmp);
yyextra->quoteArg=FALSE;
yyextra->insideComment=FALSE;
if (yyextra->insideCS) yyextra->defText="1"; // for C#, use "1" as define text
BEGIN(DefineText);
}
else // define is a guard => hide
{
//printf("Found a guard %s\n",yytext);
yyextra->guardName = yytext;
yyextra->lastGuardName.resize(0);
BEGIN(Start);
}
yyextra->expectGuard=FALSE;
}
<DefName>{ID}/{B}* { // define with content
//printf("Define '%s'\n",yytext);
yyextra->argMap.clear();
yyextra->defArgs = -1;
yyextra->defArgsStr.resize(0);
yyextra->defText.resize(0);
yyextra->defLitText.resize(0);
yyextra->defName = yytext;
yyextra->defVarArgs = FALSE;
QCString tmp=(QCString)"#define "+yyextra->defName+yyextra->defArgsStr;
outputString(yyscanner,tmp);
yyextra->quoteArg=FALSE;
yyextra->insideComment=FALSE;
BEGIN(DefineText);
}
<DefineArg>"\\\n" {
yyextra->defExtraSpacing+="\n";
yyextra->yyLineNr++;
}
<DefineArg>","{B}* { yyextra->defArgsStr+=yytext; }
<DefineArg>"("{B}* { yyextra->defArgsStr+=yytext; }
<DefineArg>{B}*")"{B}* {
yyextra->defArgsStr+=yytext;
QCString tmp=(QCString)"#define "+yyextra->defName+yyextra->defArgsStr+yyextra->defExtraSpacing;
outputString(yyscanner,tmp);
yyextra->quoteArg=FALSE;
yyextra->insideComment=FALSE;
BEGIN(DefineText);
}
<DefineArg>"..." { // Variadic macro
yyextra->defVarArgs = TRUE;
yyextra->defArgsStr+=yytext;
yyextra->argMap.emplace(std::string("__VA_ARGS__"),yyextra->defArgs);
yyextra->defArgs++;
}
<DefineArg>{ID}{B}*("..."?) {
//printf("Define addArg(%s)\n",yytext);
QCString argName=yytext;
yyextra->defVarArgs = yytext[yyleng-1]=='.';
if (yyextra->defVarArgs) // strip ellipsis
{
argName=argName.left(argName.length()-3);
}
argName = argName.stripWhiteSpace();
yyextra->defArgsStr+=yytext;
yyextra->argMap.emplace(toStdString(argName),yyextra->defArgs);
yyextra->defArgs++;
}
/*
<DefineText>"/ **"|"/ *!" {
yyextra->defText+=yytext;
yyextra->defLitText+=yytext;
yyextra->insideComment=TRUE;
}
<DefineText>"* /" {
yyextra->defText+=yytext;
yyextra->defLitText+=yytext;
yyextra->insideComment=FALSE;
}
*/
<DefineText>{CCS}[!*]? {
yyextra->defText+=yytext;
yyextra->defLitText+=yytext;
yyextra->lastCContext=YY_START;
yyextra->commentCount=1;
BEGIN(CopyCComment);
}
<DefineText>{CPPC}[!/]? {
outputArray(yyscanner,yytext,yyleng);
yyextra->lastCPPContext=YY_START;
yyextra->defLitText+=' ';
BEGIN(SkipCPPComment);
}
<SkipCComment>[/]?{CCE} {
if (yytext[0]=='/') outputChar(yyscanner,'/');
outputChar(yyscanner,'*');outputChar(yyscanner,'/');
if (--yyextra->commentCount<=0)
{
if (yyextra->lastCContext==Start)
// small hack to make sure that ^... rule will
// match when going to Start... Example: "/*...*/ some stuff..."
{
YY_CURRENT_BUFFER->yy_at_bol=1;
}
BEGIN(yyextra->lastCContext);
}
}
<SkipCComment>{CPPC}("/")* {
outputArray(yyscanner,yytext,yyleng);
}
<SkipCComment>{CCS} {
outputChar(yyscanner,'/');outputChar(yyscanner,'*');
//yyextra->commentCount++;
}
<SkipCComment>[\\@][\\@]("f{"|"f$"|"f[") {
outputArray(yyscanner,yytext,yyleng);
}
<SkipCComment>^({B}*"*"+)?{B}{0,3}"~~~"[~]* {
bool markdownSupport = Config_getBool(MARKDOWN_SUPPORT);
if (!markdownSupport || !yyextra->isSpecialComment)
{
REJECT;
}
else
{
outputArray(yyscanner,yytext,yyleng);
yyextra->fenceSize=(int)yyleng;
BEGIN(SkipVerbatim);
}
}
<SkipCComment>^({B}*"*"+)?{B}{0,3}"```"[`]* {
bool markdownSupport = Config_getBool(MARKDOWN_SUPPORT);
if (!markdownSupport || !yyextra->isSpecialComment)
{
REJECT;
}
else
{
outputArray(yyscanner,yytext,yyleng);
yyextra->fenceSize=(int)yyleng;
BEGIN(SkipVerbatim);
}
}
<SkipCComment>[\\@][\\@]("verbatim"|"latexonly"|"htmlonly"|"xmlonly"|"docbookonly"|"rtfonly"|"manonly"|"dot"|"code"("{"[^}]*"}")?){BN}+ {
outputArray(yyscanner,yytext,yyleng);
yyextra->yyLineNr+=QCString(yytext).contains('\n');
}
<SkipCComment>[\\@]("verbatim"|"latexonly"|"htmlonly"|"xmlonly"|"docbookonly"|"rtfonly"|"manonly"|"dot"|"code"("{"[^}]*"}")?){BN}+ {
outputArray(yyscanner,yytext,yyleng);
yyextra->yyLineNr+=QCString(yytext).contains('\n');
yyextra->fenceSize=0;
if (yytext[1]=='f')
{
yyextra->blockName="f";
}
else
{
QCString bn=&yytext[1];
int i = bn.find('{'); // for \code{.c}
if (i!=-1) bn=bn.left(i);
yyextra->blockName=bn.stripWhiteSpace();
}
BEGIN(SkipVerbatim);
}
<SkipCComment,SkipCPPComment>[\\@][\\@]"cond"[ \t]+ { // escaped @cond
outputArray(yyscanner,yytext,yyleng);
}
<SkipCPPComment>[\\@]"cond"[ \t]+ { // conditional section
yyextra->ccomment=TRUE;
yyextra->condCtx=YY_START;
BEGIN(CondLineCpp);
}
<SkipCComment>[\\@]"cond"[ \t]+ { // conditional section
yyextra->ccomment=FALSE;
yyextra->condCtx=YY_START;
BEGIN(CondLineC);
}
<CondLineC,CondLineCpp>[!()&| \ta-z_A-Z0-9\x80-\xFF.\-]+ {
startCondSection(yyscanner,yytext);
if (yyextra->skip)
{
if (YY_START==CondLineC)
{
// end C comment
outputArray(yyscanner,"*/",2);
yyextra->ccomment=TRUE;
}
else
{
yyextra->ccomment=FALSE;
}
BEGIN(SkipCond);
}
else
{
BEGIN(yyextra->condCtx);
}
}
<CondLineC,CondLineCpp>. { // non-guard character
unput(*yytext);
startCondSection(yyscanner," ");
if (yyextra->skip)
{
if (YY_START==CondLineC)
{
// end C comment
outputArray(yyscanner,"*/",2);
yyextra->ccomment=TRUE;
}
else
{
yyextra->ccomment=FALSE;
}
BEGIN(SkipCond);
}
else
{
BEGIN(yyextra->condCtx);
}
}
<SkipCComment,SkipCPPComment>[\\@]"cond"{WSopt}/\n { // no guard
if (YY_START==SkipCComment)
{
yyextra->ccomment=TRUE;
// end C comment
outputArray(yyscanner,"*/",2);
}
else
{
yyextra->ccomment=FALSE;
}
yyextra->condCtx=YY_START;
startCondSection(yyscanner," ");
BEGIN(SkipCond);
}
<SkipCond>\n { yyextra->yyLineNr++; outputChar(yyscanner,'\n'); }
<SkipCond>. { }
<SkipCond>[^\/\!*\\@\n]+ { }
<SkipCond>{CPPC}[/!] { yyextra->ccomment=FALSE; }
<SkipCond>{CCS}[*!] { yyextra->ccomment=TRUE; }
<SkipCond,SkipCComment,SkipCPPComment>[\\@][\\@]"endcond"/[^a-z_A-Z0-9\x80-\xFF] {
if (!yyextra->skip)
{
outputArray(yyscanner,yytext,yyleng);
}
}
<SkipCond>[\\@]"endcond"/[^a-z_A-Z0-9\x80-\xFF] {
bool oldSkip = yyextra->skip;
endCondSection(yyscanner);
if (oldSkip && !yyextra->skip)
{
if (yyextra->ccomment)
{
outputArray(yyscanner,"/** ",4);
}
BEGIN(yyextra->condCtx);
}
}
<SkipCComment,SkipCPPComment>[\\@]"endcond"/[^a-z_A-Z0-9\x80-\xFF] {
bool oldSkip = yyextra->skip;
endCondSection(yyscanner);
if (oldSkip && !yyextra->skip)
{
BEGIN(yyextra->condCtx);
}
}
<SkipVerbatim>[\\@]("endverbatim"|"endlatexonly"|"endhtmlonly"|"endxmlonly"|"enddocbookonly"|"endrtfonly"|"endmanonly"|"enddot"|"endcode"|"f$"|"f]"|"f}") { /* end of verbatim block */
outputArray(yyscanner,yytext,yyleng);
if (yytext[1]=='f' && yyextra->blockName=="f")
{
BEGIN(SkipCComment);
}
else if (&yytext[4]==yyextra->blockName)
{
BEGIN(SkipCComment);
}
}
<SkipVerbatim>^({B}*"*"+)?{B}{0,3}"~~~"[~]* {
outputArray(yyscanner,yytext,yyleng);
if (yyextra->fenceSize==(yy_size_t)yyleng)
{
BEGIN(SkipCComment);
}
}
<SkipVerbatim>^({B}*"*"+)?{B}{0,3}"```"[`]* {
outputArray(yyscanner,yytext,yyleng);
if (yyextra->fenceSize==(yy_size_t)yyleng)
{
BEGIN(SkipCComment);
}
}
<SkipVerbatim>{CCE}|{CCS} {
outputArray(yyscanner,yytext,yyleng);
}
<SkipCComment,SkipVerbatim>[^*\\@\x06~`\n\/]+ {
outputArray(yyscanner,yytext,yyleng);
}
<SkipCComment,SkipVerbatim>\n {
yyextra->yyLineNr++;
outputChar(yyscanner,'\n');
}
<SkipCComment,SkipVerbatim>. {
outputChar(yyscanner,*yytext);
}
<CopyCComment>[^*a-z_A-Z\x80-\xFF\n]*[^*a-z_A-Z\x80-\xFF\\\n] {
yyextra->defLitText+=yytext;
yyextra->defText+=escapeAt(yytext);
}
<CopyCComment>\\[\r]?\n {
yyextra->defLitText+=yytext;
yyextra->defText+=" ";
yyextra->yyLineNr++;
yyextra->yyMLines++;
}
<CopyCComment>{CCE} {
yyextra->defLitText+=yytext;
yyextra->defText+=yytext;
BEGIN(yyextra->lastCContext);
}
<CopyCComment>\n {
yyextra->yyLineNr++;
yyextra->defLitText+=yytext;
yyextra->defText+=' ';
}
<RemoveCComment>{CCE}{B}*"#" { // see bug 594021 for a usecase for this rule
if (yyextra->lastCContext==SkipCPPBlock)
{
BEGIN(SkipCommand);
}
else
{
REJECT;
}
}
<RemoveCComment>{CCE} { BEGIN(yyextra->lastCContext); }
<RemoveCComment>{CPPC}
<RemoveCComment>{CCS}
<RemoveCComment>[^*\x06\n]+
<RemoveCComment>\n { yyextra->yyLineNr++; outputChar(yyscanner,'\n'); }
<RemoveCComment>.
<SkipCPPComment>[^\n\/\\@]+ {
outputArray(yyscanner,yytext,yyleng);
}
<SkipCPPComment,RemoveCPPComment>\n {
unput(*yytext);
BEGIN(yyextra->lastCPPContext);
}
<SkipCPPComment>{CCS} {
outputChar(yyscanner,'/');outputChar(yyscanner,'*');
}
<SkipCPPComment>{CPPC} {
outputChar(yyscanner,'/');outputChar(yyscanner,'/');
}
<SkipCPPComment>[^\x06\@\\\n]+ {
outputArray(yyscanner,yytext,yyleng);
}
<SkipCPPComment>. {
outputChar(yyscanner,*yytext);
}
<RemoveCPPComment>{CCS}
<RemoveCPPComment>{CPPC}
<RemoveCPPComment>[^\x06\n]+
<RemoveCPPComment>.
<DefineText>"#" {
yyextra->quoteArg=TRUE;
yyextra->defLitText+=yytext;
}
<DefineText,CopyCComment>{ID} {
yyextra->defLitText+=yytext;
if (yyextra->quoteArg)
{
yyextra->defText+="\"";
}
if (yyextra->defArgs>0)
{
auto it = yyextra->argMap.find(yytext);
if (it!=yyextra->argMap.end())
{
int n = it->second;
yyextra->defText+='@';
yyextra->defText+=QCString().setNum(n);
}
else
{
yyextra->defText+=yytext;
}
}
else
{
yyextra->defText+=yytext;
}
if (yyextra->quoteArg)
{
yyextra->defText+="\"";
}
yyextra->quoteArg=FALSE;
}
<CopyCComment>. {
yyextra->defLitText+=yytext;
yyextra->defText+=yytext;
}
<DefineText>\\[\r]?\n {
yyextra->defLitText+=yytext;
outputChar(yyscanner,'\n');
yyextra->defText += ' ';
yyextra->yyLineNr++;
yyextra->yyMLines++;
}
<DefineText>\n {
QCString comment=extractTrailingComment(yyextra->defLitText);
yyextra->defLitText+=yytext;
if (!comment.isEmpty())
{
outputString(yyscanner,comment);
yyextra->defLitText=yyextra->defLitText.left(yyextra->defLitText.length()-comment.length()-1);
}
outputChar(yyscanner,'\n');
Define *def=0;
//printf("Define name='%s' text='%s' litTexti='%s'\n",qPrint(yyextra->defName),qPrint(yyextra->defText),qPrint(yyextra->defLitText));
if (yyextra->includeStack.empty() || yyextra->curlyCount>0)
{
addMacroDefinition(yyscanner);
}
def=isDefined(yyscanner,yyextra->defName);
if (def==0) // new define
{
//printf("new define '%s'!\n",qPrint(yyextra->defName));
addDefine(yyscanner);
}
else if (def /*&& macroIsAccessible(def)*/)
// name already exists
{
//printf("existing define!\n");
//printf("define found\n");
if (def->undef) // undefined name
{
def->undef = FALSE;
def->name = yyextra->defName;
def->definition = yyextra->defText.stripWhiteSpace();
def->nargs = yyextra->defArgs;
def->fileName = yyextra->yyFileName;
def->lineNr = yyextra->yyLineNr-yyextra->yyMLines;
def->columnNr = yyextra->yyColNr;
}
else
{
//printf("error: define %s is defined more than once!\n",qPrint(yyextra->defName));
}
}
yyextra->argMap.clear();
yyextra->yyLineNr++;
yyextra->yyColNr=1;
yyextra->lastGuardName.resize(0);
BEGIN(Start);
}
<DefineText>{B}* { yyextra->defText += ' '; yyextra->defLitText+=yytext; }
<DefineText>{B}*"##"{B}* { yyextra->defText += "##"; yyextra->defLitText+=yytext; }
<DefineText>"@" { yyextra->defText += "@@"; yyextra->defLitText+=yytext; }
<DefineText>\" {
yyextra->defText += *yytext;
yyextra->defLitText+=yytext;
if (!yyextra->insideComment)
{
BEGIN(SkipDoubleQuote);
}
}
<DefineText>\' { yyextra->defText += *yytext;
yyextra->defLitText+=yytext;
if (!yyextra->insideComment)
{
BEGIN(SkipSingleQuote);
}
}
<SkipDoubleQuote>{CPPC}[/]? { yyextra->defText += yytext; yyextra->defLitText+=yytext; }
<SkipDoubleQuote>{CCS}[*]? { yyextra->defText += yytext; yyextra->defLitText+=yytext; }
<SkipDoubleQuote>\" {
yyextra->defText += *yytext; yyextra->defLitText+=yytext;
BEGIN(DefineText);
}
<SkipSingleQuote,SkipDoubleQuote>\\. {
yyextra->defText += yytext; yyextra->defLitText+=yytext;
}
<SkipSingleQuote>\' {
yyextra->defText += *yytext; yyextra->defLitText+=yytext;
BEGIN(DefineText);
}
<SkipDoubleQuote>. { yyextra->defText += *yytext; yyextra->defLitText+=yytext; }
<SkipSingleQuote>. { yyextra->defText += *yytext; yyextra->defLitText+=yytext; }
<DefineText>. { yyextra->defText += *yytext; yyextra->defLitText+=yytext; }
<<EOF>> {
DBG_CTX((stderr,"End of include file\n"));
//printf("Include stack depth=%d\n",yyextra->includeStack.size());
if (yyextra->includeStack.empty())
{
DBG_CTX((stderr,"Terminating scanner!\n"));
yyterminate();
}
else
{
QCString toFileName = yyextra->yyFileName;
const std::unique_ptr<FileState> &fs=yyextra->includeStack.back();
//fileDefineCache->merge(yyextra->yyFileName,fs->fileName);
YY_BUFFER_STATE oldBuf = YY_CURRENT_BUFFER;
yy_switch_to_buffer( fs->bufState, yyscanner );
yy_delete_buffer( oldBuf, yyscanner );
yyextra->yyLineNr = fs->lineNr;
//preYYin = fs->oldYYin;
yyextra->inputBuf = fs->oldFileBuf;
yyextra->inputBufPos = fs->oldFileBufPos;
yyextra->curlyCount = fs->curlyCount;
setFileName(yyscanner,fs->fileName);
DBG_CTX((stderr,"######## FileName %s\n",qPrint(yyextra->yyFileName)));
// Deal with file changes due to
// #include's within { .. } blocks
QCString lineStr(15+yyextra->yyFileName.length());
lineStr.sprintf("# %d \"%s\" 2",yyextra->yyLineNr,qPrint(yyextra->yyFileName));
outputString(yyscanner,lineStr);
yyextra->includeStack.pop_back();
{
std::lock_guard<std::mutex> lock(g_globalDefineMutex);
// to avoid deadlocks we allow multiple threads to process the same header file.
// The first one to finish will store the results globally. After that the
// next time the same file is encountered, the stored data is used and the file
// is not processed again.
if (!g_defineManager.alreadyProcessed(toFileName.str()))
{
// now that the file is completely processed, prevent it from processing it again
g_defineManager.addInclude(yyextra->yyFileName.str(),toFileName.str());
g_defineManager.store(toFileName.str(),yyextra->localDefines);
}
else
{
if (Debug::isFlagSet(Debug::Preprocessor))
{
Debug::print(Debug::Preprocessor,0,"#include %s: was already processed by another thread! not storing data...\n",qPrint(toFileName));
}
}
}
// move the local macros definitions for in this file to the translation unit context
for (const auto &kv : yyextra->localDefines)
{
auto pair = yyextra->contextDefines.insert(kv);
if (!pair.second) // define already in context -> replace with local version
{
yyextra->contextDefines.erase(pair.first);
yyextra->contextDefines.insert(kv);
}
}
yyextra->localDefines.clear();
}
}
<*>{CCS}/{CCE} |
<*>{CCS}[*!]? {
if (YY_START==SkipVerbatim || YY_START==SkipCond)
{
REJECT;
}
else
{
outputArray(yyscanner,yytext,yyleng);
yyextra->lastCContext=YY_START;
yyextra->commentCount=1;
if (yyleng==3)
{
yyextra->isSpecialComment = true;
yyextra->lastGuardName.resize(0); // reset guard in case the #define is documented!
}
else
{
yyextra->isSpecialComment = false;
}
BEGIN(SkipCComment);
}
}
<*>{CPPC}[/!]? {
if (YY_START==SkipVerbatim || YY_START==SkipCond || getLanguageFromFileName(yyextra->yyFileName)==SrcLangExt_Fortran)
{
REJECT;
}
else
{
outputArray(yyscanner,yytext,yyleng);
yyextra->lastCPPContext=YY_START;
if (yyleng==3)
{
yyextra->isSpecialComment = true;
yyextra->lastGuardName.resize(0); // reset guard in case the #define is documented!
}
else
{
yyextra->isSpecialComment = false;
}
BEGIN(SkipCPPComment);
}
}
<*>\n {
outputChar(yyscanner,'\n');
yyextra->yyLineNr++;
}
<*>. {
yyextra->expectGuard = FALSE;
outputChar(yyscanner,*yytext);
}
%%
/////////////////////////////////////////////////////////////////////////////////////
static yy_size_t yyread(yyscan_t yyscanner,char *buf,yy_size_t max_size)
{
YY_EXTRA_TYPE state = preYYget_extra(yyscanner);
yy_size_t bytesInBuf = state->inputBuf->curPos()-state->inputBufPos;
yy_size_t bytesToCopy = std::min(max_size,bytesInBuf);
memcpy(buf,state->inputBuf->data()+state->inputBufPos,bytesToCopy);
state->inputBufPos+=bytesToCopy;
return bytesToCopy;
}
static void setFileName(yyscan_t yyscanner,const QCString &name)
{
YY_EXTRA_TYPE state = preYYget_extra(yyscanner);
bool ambig;
FileInfo fi(name.str());
state->yyFileName=fi.absFilePath();
state->yyFileDef=findFileDef(Doxygen::inputNameLinkedMap,state->yyFileName,ambig);
if (state->yyFileDef==0) // if this is not an input file check if it is an
// include file
{
state->yyFileDef=findFileDef(Doxygen::includeNameLinkedMap,state->yyFileName,ambig);
}
//printf("setFileName(%s) state->yyFileName=%s state->yyFileDef=%p\n",
// name,qPrint(state->yyFileName),state->yyFileDef);
if (state->yyFileDef && state->yyFileDef->isReference()) state->yyFileDef=0;
state->insideCS = getLanguageFromFileName(state->yyFileName)==SrcLangExt_CSharp;
state->insideFtn = getLanguageFromFileName(state->yyFileName)==SrcLangExt_Fortran;
state->isSource = guessSection(state->yyFileName);
}
static void incrLevel(yyscan_t yyscanner)
{
YY_EXTRA_TYPE state = preYYget_extra(yyscanner);
state->levelGuard.push(false);
//printf("%s line %d: incrLevel %d\n",qPrint(yyextra->yyFileName),yyextra->yyLineNr,yyextra->levelGuard.size());
}
static void decrLevel(yyscan_t yyscanner)
{
YY_EXTRA_TYPE state = preYYget_extra(yyscanner);
//printf("%s line %d: decrLevel %d\n",qPrint(state->yyFileName),state->yyLineNr,state->levelGuard.size());
if (!state->levelGuard.empty())
{
state->levelGuard.pop();
}
else
{
warn(state->yyFileName,state->yyLineNr,"More #endif's than #if's found.\n");
}
}
static bool otherCaseDone(yyscan_t yyscanner)
{
YY_EXTRA_TYPE state = preYYget_extra(yyscanner);
if (state->levelGuard.empty())
{
warn(state->yyFileName,state->yyLineNr,"Found an #else without a preceding #if.\n");
return TRUE;
}
else
{
return state->levelGuard.top();
}
}
static void setCaseDone(yyscan_t yyscanner,bool value)
{
YY_EXTRA_TYPE state = preYYget_extra(yyscanner);
state->levelGuard.top()=value;
}
static FileState *checkAndOpenFile(yyscan_t yyscanner,const QCString &fileName,bool &alreadyProcessed)
{
YY_EXTRA_TYPE state = preYYget_extra(yyscanner);
alreadyProcessed = FALSE;
FileState *fs = 0;
//printf("checkAndOpenFile(%s)\n",qPrint(fileName));
FileInfo fi(fileName.str());
if (fi.exists() && fi.isFile())
{
const StringVector &exclPatterns = Config_getList(EXCLUDE_PATTERNS);
if (patternMatch(fi,exclPatterns)) return 0;
QCString absName = fi.absFilePath();
// global guard
if (state->curlyCount==0) // not #include inside { ... }
{
std::lock_guard<std::mutex> lock(g_globalDefineMutex);
if (g_defineManager.alreadyProcessed(absName.str()))
{
alreadyProcessed = TRUE;
//printf(" already included 1\n");
return 0; // already done
}
}
// check include stack for absName
alreadyProcessed = std::any_of(
state->includeStack.begin(),
state->includeStack.end(),
[absName](const std::unique_ptr<FileState> &lfs)
{ return lfs->fileName==absName; }
);
if (alreadyProcessed)
{
//printf(" already included 2\n");
return 0;
}
//printf("#include %s\n",qPrint(absName));
fs = new FileState(fi.size()+4096);
if (!readInputFile(absName,fs->fileBuf))
{ // error
//printf(" error reading\n");
delete fs;
fs=0;
}
else
{
fs->oldFileBuf = state->inputBuf;
fs->oldFileBufPos = state->inputBufPos;
}
}
return fs;
}
static FileState *findFile(yyscan_t yyscanner, const QCString &fileName,bool localInclude,bool &alreadyProcessed)
{
YY_EXTRA_TYPE state = preYYget_extra(yyscanner);
//printf("** findFile(%s,%d) state->yyFileName=%s\n",qPrint(fileName),localInclude,qPrint(state->yyFileName));
if (Portable::isAbsolutePath(fileName))
{
FileState *fs = checkAndOpenFile(yyscanner,fileName,alreadyProcessed);
if (fs)
{
setFileName(yyscanner,fileName);
state->yyLineNr=1;
return fs;
}
else if (alreadyProcessed)
{
return 0;
}
}
if (localInclude && !state->yyFileName.isEmpty())
{
FileInfo fi(state->yyFileName.str());
if (fi.exists())
{
QCString absName = QCString(fi.dirPath(TRUE))+"/"+fileName;
FileState *fs = checkAndOpenFile(yyscanner,absName,alreadyProcessed);
if (fs)
{
setFileName(yyscanner,absName);
state->yyLineNr=1;
return fs;
}
else if (alreadyProcessed)
{
return 0;
}
}
}
if (state->pathList.empty())
{
return 0;
}
for (auto path : state->pathList)
{
std::string absName = (path+"/"+fileName).str();
//printf(" Looking for %s in %s\n",fileName,path.c_str());
FileState *fs = checkAndOpenFile(yyscanner,absName.c_str(),alreadyProcessed);
if (fs)
{
setFileName(yyscanner,absName.c_str());
state->yyLineNr=1;
//printf(" -> found it\n");
return fs;
}
else if (alreadyProcessed)
{
return 0;
}
}
return 0;
}
static QCString extractTrailingComment(const QCString &s)
{
if (s.isEmpty()) return "";
int i=(int)s.length()-1;
while (i>=0)
{
char c=s[i];
switch (c)
{
case '/':
{
i--;
if (i>=0 && s[i]=='*') // end of a comment block
{
i--;
while (i>0 && !(s[i-1]=='/' && s[i]=='*')) i--;
if (i==0)
{
i++;
}
// only /*!< or /**< are treated as a comment for the macro name,
// otherwise the comment is treated as part of the macro definition
return ((s[i+1]=='*' || s[i+1]=='!') && s[i+2]=='<') ? &s[i-1] : "";
}
else
{
return "";
}
}
break;
// whitespace or line-continuation
case ' ':
case '\t':
case '\r':
case '\n':
case '\\':
break;
default:
return "";
}
i--;
}
return "";
}
static int getNextChar(yyscan_t yyscanner,const QCString &expr,QCString *rest,uint &pos);
static int getCurrentChar(yyscan_t yyscanner,const QCString &expr,QCString *rest,uint pos);
static void unputChar(yyscan_t yyscanner,const QCString &expr,QCString *rest,uint &pos,char c);
static bool expandExpression(yyscan_t yyscanner,QCString &expr,QCString *rest,int pos,int level);
static QCString stringize(const QCString &s)
{
QCString result;
uint i=0;
bool inString=FALSE;
bool inChar=FALSE;
char c,pc;
while (i<s.length())
{
if (!inString && !inChar)
{
while (i<s.length() && !inString && !inChar)
{
c=s.at(i++);
if (c=='"')
{
result+="\\\"";
inString=TRUE;
}
else if (c=='\'')
{
result+=c;
inChar=TRUE;
}
else
{
result+=c;
}
}
}
else if (inChar)
{
while (i<s.length() && inChar)
{
c=s.at(i++);
if (c=='\'')
{
result+='\'';
inChar=FALSE;
}
else if (c=='\\')
{
result+="\\\\";
}
else
{
result+=c;
}
}
}
else
{
pc=0;
while (i<s.length() && inString)
{
c=s.at(i++);
if (c=='"')
{
result+="\\\"";
inString= pc=='\\';
}
else if (c=='\\')
result+="\\\\";
else
result+=c;
pc=c;
}
}
}
//printf("stringize '%s'->'%s'\n",qPrint(s),qPrint(result));
return result;
}
/*! Execute all ## operators in expr.
* If the macro name before or after the operator contains a no-rescan
* marker (@-) then this is removed (before the concatenated macro name
* may be expanded again.
*/
static void processConcatOperators(QCString &expr)
{
if (expr.isEmpty()) return;
//printf("processConcatOperators: in='%s'\n",qPrint(expr));
std::string e = expr.str();
static const reg::Ex r(R"(\s*##\s*)");
reg::Iterator end;
size_t i=0;
for (;;)
{
reg::Iterator it(e,r,i);
if (it!=end)
{
const auto &match = *it;
size_t n = match.position();
size_t l = match.length();
//printf("Match: '%s'\n",qPrint(expr.mid(i)));
if (n+l+1<e.length() && e[static_cast<int>(n+l)]=='@' && expr[static_cast<int>(n+l+1)]=='-')
{
// remove no-rescan marker after ID
l+=2;
}
//printf("found '%s'\n",qPrint(expr.mid(n,l)));
// remove the ## operator and the surrounding whitespace
e=e.substr(0,n)+e.substr(n+l);
int k=static_cast<int>(n)-1;
while (k>=0 && isId(e[k])) k--;
if (k>0 && e[k]=='-' && e[k-1]=='@')
{
// remove no-rescan marker before ID
e=e.substr(0,k-1)+e.substr(k+1);
n-=2;
}
i=n;
}
else
{
break;
}
}
expr = e;
//printf("processConcatOperators: out='%s'\n",qPrint(expr));
}
static void returnCharToStream(yyscan_t yyscanner,char c)
{
struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
unput(c);
}
static inline void addTillEndOfString(yyscan_t yyscanner,const QCString &expr,QCString *rest,
uint &pos,char term,QCString &arg)
{
int cc;
while ((cc=getNextChar(yyscanner,expr,rest,pos))!=EOF && cc!=0)
{
if (cc=='\\') arg+=(char)cc,cc=getNextChar(yyscanner,expr,rest,pos);
else if (cc==term) return;
arg+=(char)cc;
}
}
/*! replaces the function macro \a def whose argument list starts at
* \a pos in expression \a expr.
* Notice that this routine may scan beyond the \a expr string if needed.
* In that case the characters will be read from the input file.
* The replacement string will be returned in \a result and the
* length of the (unexpanded) argument list is stored in \a len.
*/
static bool replaceFunctionMacro(yyscan_t yyscanner,const QCString &expr,QCString *rest,int pos,int &len,const Define *def,QCString &result,int level)
{
YY_EXTRA_TYPE state = preYYget_extra(yyscanner);
//printf(">replaceFunctionMacro(expr='%s',rest='%s',pos=%d,def='%s') level=%d\n",qPrint(expr),rest ? qPrint(*rest) : 0,pos,qPrint(def->name),state->levelGuard.size());
uint j=pos;
len=0;
result.resize(0);
int cc;
while ((cc=getCurrentChar(yyscanner,expr,rest,j))!=EOF && isspace(cc))
{
len++;
getNextChar(yyscanner,expr,rest,j);
}
if (cc!='(')
{
unputChar(yyscanner,expr,rest,j,' ');
return FALSE;
}
getNextChar(yyscanner,expr,rest,j); // eat the '(' character
std::map<std::string,std::string> argTable; // list of arguments
QCString arg;
int argCount=0;
bool done=FALSE;
// PHASE 1: read the macro arguments
if (def->nargs==0)
{
while ((cc=getNextChar(yyscanner,expr,rest,j))!=EOF && cc!=0)
{
char c = (char)cc;
if (c==')') break;
}
}
else
{
while (!done && (argCount<def->nargs || def->varArgs) &&
((cc=getNextChar(yyscanner,expr,rest,j))!=EOF && cc!=0)
)
{
char c=(char)cc;
if (c=='(') // argument is a function => search for matching )
{
int lvl=1;
arg+=c;
//char term='\0';
while ((cc=getNextChar(yyscanner,expr,rest,j))!=EOF && cc!=0)
{
c=(char)cc;
//printf("processing %c: term=%c (%d)\n",c,term,term);
if (c=='\'' || c=='\"') // skip ('s and )'s inside strings
{
arg+=c;
addTillEndOfString(yyscanner,expr,rest,j,c,arg);
}
if (c==')')
{
lvl--;
arg+=c;
if (lvl==0) break;
}
else if (c=='(')
{
lvl++;
arg+=c;
}
else
arg+=c;
}
}
else if (c==')' || c==',') // last or next argument found
{
if (c==',' && argCount==def->nargs-1 && def->varArgs)
{
arg=arg.stripWhiteSpace();
arg+=',';
}
else
{
QCString argKey;
argKey.sprintf("@%d",argCount++); // key name
arg=arg.stripWhiteSpace();
// add argument to the lookup table
argTable.emplace(toStdString(argKey), toStdString(arg));
arg.resize(0);
if (c==')') // end of the argument list
{
done=TRUE;
}
}
}
else if (c=='\"') // append literal strings
{
arg+=c;
bool found=FALSE;
while (!found && (cc=getNextChar(yyscanner,expr,rest,j))!=EOF && cc!=0)
{
found = cc=='"';
if (cc=='\\')
{
c=(char)cc;
arg+=c;
if ((cc=getNextChar(yyscanner,expr,rest,j))==EOF || cc==0) break;
}
c=(char)cc;
arg+=c;
}
}
else if (c=='\'') // append literal characters
{
arg+=c;
bool found=FALSE;
while (!found && (cc=getNextChar(yyscanner,expr,rest,j))!=EOF && cc!=0)
{
found = cc=='\'';
if (cc=='\\')
{
c=(char)cc;
arg+=c;
if ((cc=getNextChar(yyscanner,expr,rest,j))==EOF || cc==0) break;
}
c=(char)cc;
arg+=c;
}
}
else if (c=='/') // possible start of a comment
{
char prevChar = '\0';
arg+=c;
if ((cc=getCurrentChar(yyscanner,expr,rest,j)) == '*') // we have a comment
{
while ((cc=getNextChar(yyscanner,expr,rest,j))!=EOF && cc!=0)
{
c=(char)cc;
arg+=c;
if (c == '/' && prevChar == '*') break; // we have an end of comment
prevChar = c;
}
}
}
else // append other characters
{
arg+=c;
}
}
}
// PHASE 2: apply the macro function
if (argCount==def->nargs || // same number of arguments
(argCount>=def->nargs-1 && def->varArgs)) // variadic macro with at least as many
// params as the non-variadic part (see bug731985)
{
uint k=0;
// substitution of all formal arguments
QCString resExpr;
const QCString d=def->definition.stripWhiteSpace();
//printf("Macro definition: '%s'\n",qPrint(d));
bool inString=FALSE;
while (k<d.length())
{
if (d.at(k)=='@') // maybe a marker, otherwise an escaped @
{
if (d.at(k+1)=='@') // escaped @ => copy it (is unescaped later)
{
k+=2;
resExpr+="@@"; // we unescape these later
}
else if (d.at(k+1)=='-') // no-rescan marker
{
k+=2;
resExpr+="@-";
}
else // argument marker => read the argument number
{
QCString key="@";
bool hash=FALSE;
int l=k-1;
// search for ## backward
if (l>=0 && d.at(l)=='"') l--;
while (l>=0 && d.at(l)==' ') l--;
if (l>0 && d.at(l)=='#' && d.at(l-1)=='#') hash=TRUE;
k++;
// scan the number
while (k<d.length() && d.at(k)>='0' && d.at(k)<='9') key+=d.at(k++);
if (!hash)
{
// search for ## forward
l=k;
if (l<(int)d.length() && d.at(l)=='"') l++;
while (l<(int)d.length() && d.at(l)==' ') l++;
if (l<(int)d.length()-1 && d.at(l)=='#' && d.at(l+1)=='#') hash=TRUE;
}
//printf("request key %s result %s\n",qPrint(key),argTable[key]->data());
auto it = argTable.find(key.str());
if (it!=argTable.end())
{
QCString substArg = it->second.c_str();
//printf("substArg='%s'\n",qPrint(substArg));
// only if no ## operator is before or after the argument
// marker we do macro expansion.
if (!hash)
{
expandExpression(yyscanner,substArg,0,0,level+1);
}
if (inString)
{
//printf("'%s'=stringize('%s')\n",qPrint(stringize(*subst)),subst->data());
// if the marker is inside a string (because a # was put
// before the macro name) we must escape " and \ characters
resExpr+=stringize(substArg);
}
else
{
if (hash && substArg.isEmpty())
{
resExpr+="@E"; // empty argument will be remove later on
}
else if (state->nospaces)
{
resExpr+=substArg;
}
else
{
resExpr+=" "+substArg+" ";
}
}
}
}
}
else // no marker, just copy
{
if (!inString && d.at(k)=='\"')
{
inString=TRUE; // entering a literal string
}
else if (inString && d.at(k)=='\"' && (d.at(k-1)!='\\' || d.at(k-2)=='\\'))
{
inString=FALSE; // leaving a literal string
}
resExpr+=d.at(k++);
}
}
len=j-pos;
result=resExpr;
//printf("<replaceFunctionMacro(expr='%s',rest='%s',pos=%d,def='%s',result='%s') level=%d return=TRUE\n",qPrint(expr),rest ? qPrint(*rest) : 0,pos,qPrint(def->name),qPrint(result),state->levelGuard.size());
return TRUE;
}
//printf("<replaceFunctionMacro(expr='%s',rest='%s',pos=%d,def='%s',result='%s') level=%d return=FALSE\n",qPrint(expr),rest ? qPrint(*rest) : 0,pos,qPrint(def->name),qPrint(result),state->levelGuard.size());
return FALSE;
}
/*! returns the next identifier in string \a expr by starting at position \a p.
* The position of the identifier is returned (or -1 if nothing is found)
* and \a l is its length. Any quoted strings are skipping during the search.
*/
static int getNextId(const QCString &expr,int p,int *l)
{
int n;
while (p<(int)expr.length())
{
char c=expr.at(p++);
if (isdigit(c)) // skip number
{
while (p<(int)expr.length() && isId(expr.at(p))) p++;
}
else if (isalpha(c) || c=='_') // read id
{
n=p-1;
while (p<(int)expr.length() && isId(expr.at(p))) p++;
*l=p-n;
return n;
}
else if (c=='"') // skip string
{
char ppc=0,pc=c;
if (p<(int)expr.length()) c=expr.at(p);
while (p<(int)expr.length() && (c!='"' || (pc=='\\' && ppc!='\\')))
// continue as long as no " is found, but ignoring \", but not \\"
{
ppc=pc;
pc=c;
c=expr.at(p);
p++;
}
if (p<(int)expr.length()) ++p; // skip closing quote
}
else if (c=='/') // skip C Comment
{
//printf("Found C comment at p=%d\n",p);
char pc=c;
if (p<(int)expr.length())
{
c=expr.at(p);
if (c=='*') // Start of C comment
{
p++;
while (p<(int)expr.length() && !(pc=='*' && c=='/'))
{
pc=c;
c=expr.at(p++);
}
}
}
//printf("Found end of C comment at p=%d\n",p);
}
}
return -1;
}
#define MAX_EXPANSION_DEPTH 50
/*! performs recursive macro expansion on the string \a expr
* starting at position \a pos.
* May read additional characters from the input while re-scanning!
*/
static bool expandExpression(yyscan_t yyscanner,QCString &expr,QCString *rest,int pos,int level)
{
YY_EXTRA_TYPE state = preYYget_extra(yyscanner);
//printf(">expandExpression(expr='%s',rest='%s',pos=%d,level=%d)\n",qPrint(expr),rest ? qPrint(*rest) : "", pos, level);
if (expr.isEmpty())
{
//printf("<expandExpression: empty\n");
return TRUE;
}
if (state->expanded.find(expr.str())!=state->expanded.end() &&
level>MAX_EXPANSION_DEPTH) // check for too deep recursive expansions
{
//printf("<expandExpression: already expanded expr='%s'\n",qPrint(expr));
return FALSE;
}
else
{
state->expanded.insert(expr.str());
}
QCString macroName;
QCString expMacro;
bool definedTest=FALSE;
int i=pos,l,p,len;
int startPos = pos;
int samePosCount=0;
while ((p=getNextId(expr,i,&l))!=-1) // search for an macro name
{
bool replaced=FALSE;
macroName=expr.mid(p,l);
//printf(" p=%d macroName=%s\n",p,qPrint(macroName));
if (p<2 || !(expr.at(p-2)=='@' && expr.at(p-1)=='-')) // no-rescan marker?
{
if (state->expandedDict.find(macroName.str())==state->expandedDict.end()) // expand macro
{
Define *def=isDefined(yyscanner,macroName);
if (macroName=="defined")
{
//printf("found defined inside macro definition '%s'\n",qPrint(expr.right(expr.length()-p)));
definedTest=TRUE;
}
else if (definedTest) // macro name was found after defined
{
if (def) expMacro = " 1 "; else expMacro = " 0 ";
replaced=TRUE;
len=l;
definedTest=FALSE;
}
else if (def && def->nargs==-1) // simple macro
{
// substitute the definition of the macro
//printf("macro '%s'->'%s'\n",qPrint(macroName),qPrint(def->definition));
if (state->nospaces)
{
expMacro=def->definition.stripWhiteSpace();
}
else
{
expMacro=" "+def->definition.stripWhiteSpace()+" ";
}
//expMacro=def->definition.stripWhiteSpace();
replaced=TRUE;
len=l;
//printf("simple macro expansion='%s'->'%s'\n",qPrint(macroName),qPrint(expMacro));
}
else if (def && def->nargs>=0) // function macro
{
//printf(" >>>> call replaceFunctionMacro expr='%s'\n",qPrint(expr));
replaced=replaceFunctionMacro(yyscanner,expr,rest,p+l,len,def,expMacro,level);
//printf(" <<<< call replaceFunctionMacro: replaced=%d\n",replaced);
len+=l;
}
//printf(" macroName='%s' expMacro='%s' replaced=%d\n",qPrint(macroName),qPrint(expMacro),replaced);
if (replaced) // expand the macro and rescan the expression
{
//printf(" replacing '%s'->'%s'\n",expr.mid(p,qPrint(len)),qPrint(expMacro));
QCString resultExpr=expMacro;
QCString restExpr=expr.right(expr.length()-len-p);
processConcatOperators(resultExpr);
//printf(" macroName=%s restExpr='%s' def->nonRecursive=%d\n",qPrint(macroName),qPrint(restExpr),def->nonRecursive);
bool expanded=false;
if (def && !def->nonRecursive)
{
state->expandedDict.emplace(toStdString(macroName),def);
expanded = expandExpression(yyscanner,resultExpr,&restExpr,0,level+1);
state->expandedDict.erase(toStdString(macroName));
}
else if (def && def->nonRecursive)
{
expanded = true;
}
if (expanded)
{
expr=expr.left(p)+resultExpr+restExpr;
//printf(" new expression: '%s' old i=%d new i=%d\n",qPrint(expr),i,p);
i=p;
}
else
{
expr=expr.left(p)+"@-"+expr.right(expr.length()-p);
i=p+l+2;
}
}
else // move to the next macro name
{
//printf(" moving to the next macro old i=%d new i=%d\n",i,p+l);
i=p+l;
}
}
else // move to the next macro name
{
expr=expr.left(p)+"@-"+expr.right(expr.length()-p);
//printf("macro already expanded, moving to the next macro expr=%s\n",qPrint(expr));
i=p+l+2;
//i=p+l;
}
// check for too many inplace expansions without making progress
if (i==startPos)
{
samePosCount++;
}
else
{
startPos=i;
samePosCount=0;
}
if (samePosCount>MAX_EXPANSION_DEPTH)
{
break;
}
}
else // no re-scan marker found, skip the macro name
{
//printf("skipping marked macro\n");
i=p+l;
}
}
//printf("<expandExpression(expr='%s',rest='%s',pos=%d,level=%d)\n",qPrint(expr),rest ? qPrint(*rest) : "", pos,level);
return TRUE;
}
/*! @brief Process string or character literal.
*
* \a inputStr should point to the start of a string or character literal.
* the routine will return a pointer to just after the end of the literal
* the character making up the literal will be added to \a result.
*/
static const char *processUntilMatchingTerminator(const char *inputStr,QCString &result)
{
if (inputStr==0) return inputStr;
char term = *inputStr; // capture start character of the literal
if (term!='\'' && term!='"') return inputStr; // not a valid literal
char c=term;
// output start character
result+=c;
inputStr++;
while ((c=*inputStr)) // while inside the literal
{
if (c==term) // found end marker of the literal
{
// output end character and stop
result+=c;
inputStr++;
break;
}
else if (c=='\\') // escaped character, process next character
// as well without checking for end marker.
{
result+=c;
inputStr++;
c=*inputStr;
if (c==0) break; // unexpected end of string after escape character
}
result+=c;
inputStr++;
}
return inputStr;
}
/*! replaces all occurrences of @@@@ in \a s by @@
* and removes all occurrences of @@E.
* All identifiers found are replaced by 0L
*/
static QCString removeIdsAndMarkers(const QCString &s)
{
//printf("removeIdsAndMarkers(%s)\n",s);
if (s.isEmpty()) return s;
const char *p=s.data();
char c;
bool inNum=FALSE;
QCString result;
if (p)
{
while ((c=*p))
{
if (c=='@') // replace @@ with @ and remove @E
{
if (*(p+1)=='@')
{
result+=c;
}
else if (*(p+1)=='E')
{
// skip
}
p+=2;
}
else if (isdigit(c)) // number
{
result+=c;
p++;
inNum=TRUE;
}
else if (c=='\'') // quoted character
{
p = processUntilMatchingTerminator(p,result);
}
else if (c=='d' && !inNum) // identifier starting with a 'd'
{
if (qstrncmp(p,"defined ",8)==0 || qstrncmp(p,"defined(",8)==0)
// defined keyword
{
p+=7; // skip defined
}
else
{
result+="0L";
p++;
while ((c=*p) && isId(c)) p++;
}
}
else if ((isalpha(c) || c=='_') && !inNum) // replace identifier with 0L
{
result+="0L";
p++;
while ((c=*p) && isId(c)) p++;
while ((c=*p) && isspace((uchar)c)) p++;
if (*p=='(') // undefined function macro
{
p++;
int count=1;
while ((c=*p++))
{
if (c=='(') count++;
else if (c==')')
{
count--;
if (count==0) break;
}
else if (c=='/')
{
char pc=c;
c=*++p;
if (c=='*') // start of C comment
{
while (*p && !(pc=='*' && c=='/')) // search end of comment
{
pc=c;
c=*++p;
}
p++;
}
}
}
}
}
else if (c=='/') // skip C comments
{
char pc=c;
c=*++p;
if (c=='*') // start of C comment
{
while (*p && !(pc=='*' && c=='/')) // search end of comment
{
pc=c;
c=*++p;
}
p++;
}
else // oops, not comment but division
{
result+=pc;
goto nextChar;
}
}
else
{
nextChar:
result+=c;
char lc=(char)tolower(c);
if (!isId(lc) && lc!='.' /*&& lc!='-' && lc!='+'*/) inNum=FALSE;
p++;
}
}
}
//printf("removeIdsAndMarkers(%s)=%s\n",s,qPrint(result));
return result;
}
/*! replaces all occurrences of @@ in \a s by @
* \par assumption:
* \a s only contains pairs of @@'s
*/
static QCString removeMarkers(const QCString &s)
{
if (s.isEmpty()) return s;
const char *p=s.data();
char c;
QCString result;
if (p)
{
while ((c=*p))
{
switch(c)
{
case '@': // replace @@ with @
{
if (*(p+1)=='@')
{
result+=c;
}
p+=2;
}
break;
case '/': // skip C comments
{
result+=c;
char pc=c;
c=*++p;
if (c=='*') // start of C comment
{
while (*p && !(pc=='*' && c=='/')) // search end of comment
{
if (*p=='@' && *(p+1)=='@')
result+=c,p++;
else
result+=c;
pc=c;
c=*++p;
}
if (*p) result+=c,p++;
}
}
break;
case '"': // skip string literals
case '\'': // skip char literals
p = processUntilMatchingTerminator(p,result);
break;
default:
{
result+=c;
p++;
}
break;
}
}
}
//printf("RemoveMarkers(%s)=%s\n",s,qPrint(result));
return result;
}
/*! compute the value of the expression in string \a expr.
* If needed the function may read additional characters from the input.
*/
static bool computeExpression(yyscan_t yyscanner,const QCString &expr)
{
YY_EXTRA_TYPE state = preYYget_extra(yyscanner);
QCString e=expr;
state->expanded.clear();
expandExpression(yyscanner,e,0,0,0);
//printf("after expansion '%s'\n",qPrint(e));
e = removeIdsAndMarkers(e);
if (e.isEmpty()) return FALSE;
//printf("parsing '%s'\n",qPrint(e));
return state->constExpParser.parse(state->yyFileName.data(),state->yyLineNr,e.str());
}
/*! expands the macro definition in \a name
* If needed the function may read additional characters from the input
*/
static QCString expandMacro(yyscan_t yyscanner,const QCString &name)
{
YY_EXTRA_TYPE state = preYYget_extra(yyscanner);
QCString n=name;
state->expanded.clear();
expandExpression(yyscanner,n,0,0,0);
n=removeMarkers(n);
//printf("expandMacro '%s'->'%s'\n",qPrint(name),qPrint(n));
return n;
}
static void addDefine(yyscan_t yyscanner)
{
YY_EXTRA_TYPE state = preYYget_extra(yyscanner);
Define def;
def.name = state->defName;
def.definition = state->defText.stripWhiteSpace();
def.nargs = state->defArgs;
def.fileName = state->yyFileName;
def.fileDef = state->yyFileDef;
def.lineNr = state->yyLineNr-state->yyMLines;
def.columnNr = state->yyColNr;
def.varArgs = state->defVarArgs;
//printf("newDefine: %s %s file: %s\n",qPrint(def.name),qPrint(def.definition),
// def.fileDef ? qPrint(def.fileDef->name()) : qPrint(def.fileName));
//printf("newDefine: '%s'->'%s'\n",qPrint(def.name),qPrint(def.definition));
if (!def.name.isEmpty() &&
Doxygen::expandAsDefinedSet.find(def.name.str())!=Doxygen::expandAsDefinedSet.end())
{
def.isPredefined=TRUE;
}
auto it = state->localDefines.find(def.name.str());
if (it!=state->localDefines.end()) // redefine
{
state->localDefines.erase(it);
}
state->localDefines.insert(std::make_pair(def.name.str(),def));
}
static void addMacroDefinition(yyscan_t yyscanner)
{
YY_EXTRA_TYPE state = preYYget_extra(yyscanner);
if (state->skip) return; // do not add this define as it is inside a
// conditional section (cond command) that is disabled.
Define define;
define.fileName = state->yyFileName;
define.lineNr = state->yyLineNr - state->yyMLines;
define.columnNr = state->yyColNr;
define.name = state->defName;
define.args = state->defArgsStr;
define.fileDef = state->inputFileDef;
QCString litText = state->defLitText;
int l=litText.find('\n');
if (l>0 && litText.left(l).stripWhiteSpace()=="\\")
{
// strip first line if it only contains a slash
litText = litText.right(litText.length()-l-1);
}
else if (l>0)
{
// align the items on the first line with the items on the second line
int k=l+1;
const char *p=litText.data()+k;
char c;
while ((c=*p++) && (c==' ' || c=='\t')) k++;
litText=litText.mid(l+1,k-l-1)+litText.stripWhiteSpace();
}
QCString litTextStripped = state->defLitText.stripWhiteSpace();
if (litTextStripped.contains('\n')>=1)
{
define.definition = litText;
}
else
{
define.definition = litTextStripped;
}
{
state->macroDefinitions.push_back(define);
}
}
static inline void outputChar(yyscan_t yyscanner,char c)
{
YY_EXTRA_TYPE state = preYYget_extra(yyscanner);
if (state->includeStack.empty() || state->curlyCount>0) state->outputBuf->addChar(c);
}
static inline void outputArray(yyscan_t yyscanner,const char *a,yy_size_t len)
{
YY_EXTRA_TYPE state = preYYget_extra(yyscanner);
if (state->includeStack.empty() || state->curlyCount>0) state->outputBuf->addArray(a,len);
}
static inline void outputString(yyscan_t yyscanner,const QCString &a)
{
YY_EXTRA_TYPE state = preYYget_extra(yyscanner);
if (state->includeStack.empty() || state->curlyCount>0) state->outputBuf->addArray(a.data(),a.length());
}
static QCString determineAbsoluteIncludeName(const QCString &curFile,const QCString &incFileName)
{
bool searchIncludes = Config_getBool(SEARCH_INCLUDES);
QCString absIncFileName = incFileName;
FileInfo fi(curFile.str());
if (fi.exists())
{
QCString absName = QCString(fi.dirPath(TRUE))+"/"+incFileName;
FileInfo fi2(absName.str());
if (fi2.exists())
{
absIncFileName=fi2.absFilePath();
}
else if (searchIncludes) // search in INCLUDE_PATH as well
{
const StringVector &includePath = Config_getList(INCLUDE_PATH);
for (const auto &incPath : includePath)
{
FileInfo fi3(incPath);
if (fi3.exists() && fi3.isDir())
{
absName = QCString(fi3.absFilePath())+"/"+incFileName;
//printf("trying absName=%s\n",qPrint(absName));
FileInfo fi4(absName.str());
if (fi4.exists())
{
absIncFileName=fi4.absFilePath();
break;
}
//printf( "absIncFileName = %s\n", qPrint(absIncFileName) );
}
}
}
//printf( "absIncFileName = %s\n", qPrint(absIncFileName) );
}
return absIncFileName;
}
static void readIncludeFile(yyscan_t yyscanner,const QCString &inc)
{
YY_EXTRA_TYPE state = preYYget_extra(yyscanner);
uint i=0;
// find the start of the include file name
while (i<inc.length() &&
(inc.at(i)==' ' || inc.at(i)=='"' || inc.at(i)=='<')
) i++;
uint s=i;
// was it a local include?
bool localInclude = s>0 && inc.at(s-1)=='"';
// find the end of the include file name
while (i<inc.length() && inc.at(i)!='"' && inc.at(i)!='>') i++;
if (s<inc.length() && i>s) // valid include file name found
{
// extract include path+name
QCString incFileName=inc.mid(s,i-s).stripWhiteSpace();
QCString dosExt = incFileName.right(4);
if (dosExt==".exe" || dosExt==".dll" || dosExt==".tlb")
{
// skip imported binary files (e.g. M$ type libraries)
return;
}
QCString oldFileName = state->yyFileName;
FileDef *oldFileDef = state->yyFileDef;
int oldLineNr = state->yyLineNr;
//printf("Searching for '%s'\n",qPrint(incFileName));
QCString absIncFileName = determineAbsoluteIncludeName(state->yyFileName,incFileName);
// findFile will overwrite state->yyFileDef if found
FileState *fs;
bool alreadyProcessed = FALSE;
//printf("calling findFile(%s)\n",qPrint(incFileName));
if ((fs=findFile(yyscanner,incFileName,localInclude,alreadyProcessed))) // see if the include file can be found
{
{
std::lock_guard<std::mutex> lock(g_globalDefineMutex);
g_defineManager.addInclude(oldFileName.str(),absIncFileName.str());
}
//printf("Found include file!\n");
if (Debug::isFlagSet(Debug::Preprocessor))
{
for (i=0;i<state->includeStack.size();i++)
{
Debug::print(Debug::Preprocessor,0," ");
}
Debug::print(Debug::Preprocessor,0,"#include %s: parsing...\n",qPrint(incFileName));
}
if (state->includeStack.empty() && oldFileDef)
{
PreIncludeInfo *ii = state->includeRelations.find(absIncFileName);
if (ii==0)
{
bool ambig;
FileDef *incFd = findFileDef(Doxygen::inputNameLinkedMap,absIncFileName,ambig);
state->includeRelations.add(
absIncFileName,
oldFileDef,
ambig?nullptr:incFd,
incFileName,
localInclude,
state->isImported
);
}
}
struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
fs->bufState = YY_CURRENT_BUFFER;
fs->lineNr = oldLineNr;
fs->fileName = oldFileName;
fs->curlyCount = state->curlyCount;
state->curlyCount = 0;
// push the state on the stack
state->includeStack.emplace_back(fs);
// set the scanner to the include file
// Deal with file changes due to
// #include's within { .. } blocks
QCString lineStr(state->yyFileName.length()+20);
lineStr.sprintf("# 1 \"%s\" 1\n",qPrint(state->yyFileName));
outputString(yyscanner,lineStr);
DBG_CTX((stderr,"Switching to include file %s\n",qPrint(incFileName)));
state->expectGuard=TRUE;
state->inputBuf = &fs->fileBuf;
state->inputBufPos=0;
yy_switch_to_buffer(yy_create_buffer(0, YY_BUF_SIZE, yyscanner),yyscanner);
}
else
{
if (alreadyProcessed) // if this header was already process we can just copy the stored macros
// in the local context
{
std::lock_guard<std::mutex> lock(g_globalDefineMutex);
g_defineManager.addInclude(state->yyFileName.str(),absIncFileName.str());
g_defineManager.retrieve(absIncFileName.str(),state->contextDefines);
}
if (state->includeStack.empty() && oldFileDef)
{
PreIncludeInfo *ii = state->includeRelations.find(absIncFileName);
if (ii==0)
{
bool ambig;
FileDef *incFd = findFileDef(Doxygen::inputNameLinkedMap,absIncFileName,ambig);
ii = state->includeRelations.add(absIncFileName,
oldFileDef,
ambig?0:incFd,
incFileName,
localInclude,
state->isImported
);
}
}
if (Debug::isFlagSet(Debug::Preprocessor))
{
for (i=0;i<state->includeStack.size();i++)
{
Debug::print(Debug::Preprocessor,0," ");
}
if (alreadyProcessed)
{
Debug::print(Debug::Preprocessor,0,"#include %s: already processed! skipping...\n",qPrint(incFileName));
}
else
{
Debug::print(Debug::Preprocessor,0,"#include %s: not found! skipping...\n",qPrint(incFileName));
}
//printf("error: include file %s not found\n",yytext);
}
if (state->curlyCount>0 && !alreadyProcessed) // failed to find #include inside { ... }
{
warn(state->yyFileName,state->yyLineNr,"include file %s not found, perhaps you forgot to add its directory to INCLUDE_PATH?",qPrint(incFileName));
}
}
}
}
/* ----------------------------------------------------------------- */
static void startCondSection(yyscan_t yyscanner,const QCString §Id)
{
YY_EXTRA_TYPE state = preYYget_extra(yyscanner);
//printf("startCondSection: skip=%d stack=%d\n",state->skip,state->condStack.size());
CondParser prs;
bool expResult = prs.parse(state->yyFileName.data(),state->yyLineNr,sectId.data());
state->condStack.emplace(std::make_unique<CondCtx>(state->yyLineNr,sectId,state->skip));
if (!expResult)
{
state->skip=TRUE;
}
//printf(" expResult=%d skip=%d\n",expResult,state->skip);
}
static void endCondSection(yyscan_t yyscanner)
{
YY_EXTRA_TYPE state = preYYget_extra(yyscanner);
if (state->condStack.empty())
{
state->skip=FALSE;
}
else
{
const std::unique_ptr<CondCtx> &ctx = state->condStack.top();
state->skip=ctx->skip;
state->condStack.pop();
}
//printf("endCondSection: skip=%d stack=%d\n",state->skip,state->condStack.count());
}
static void forceEndCondSection(yyscan_t yyscanner)
{
YY_EXTRA_TYPE state = preYYget_extra(yyscanner);
while (!state->condStack.empty())
{
state->condStack.pop();
}
state->skip=FALSE;
}
static QCString escapeAt(const QCString &text)
{
QCString result;
if (!text.isEmpty())
{
char c;
const char *p=text.data();
while ((c=*p++))
{
if (c=='@') result+="@@"; else result+=c;
}
}
return result;
}
static char resolveTrigraph(char c)
{
switch (c)
{
case '=': return '#';
case '/': return '\\';
case '\'': return '^';
case '(': return '[';
case ')': return ']';
case '!': return '|';
case '<': return '{';
case '>': return '}';
case '-': return '~';
}
return '?';
}
/*@ ----------------------------------------------------------------------------
*/
static int getNextChar(yyscan_t yyscanner,const QCString &expr,QCString *rest,uint &pos)
{
//printf("getNextChar(%s,%s,%d)\n",qPrint(expr),rest ? rest->data() : 0,pos);
if (pos<expr.length())
{
//printf("%c=expr()\n",expr.at(pos));
return expr.at(pos++);
}
else if (rest && !rest->isEmpty())
{
int cc=rest->at(0);
*rest=rest->right(rest->length()-1);
//printf("%c=rest\n",cc);
return cc;
}
else
{
int cc=yyinput(yyscanner);
//printf("%d=yyinput() %d\n",cc,EOF);
return cc;
}
}
static int getCurrentChar(yyscan_t yyscanner,const QCString &expr,QCString *rest,uint pos)
{
//printf("getCurrentChar(%s,%s,%d)\n",qPrint(expr),rest ? rest->data() : 0,pos);
if (pos<expr.length())
{
//printf("%c=expr()\n",expr.at(pos));
return expr.at(pos);
}
else if (rest && !rest->isEmpty())
{
int cc=rest->at(0);
//printf("%c=rest\n",cc);
return cc;
}
else
{
int cc=yyinput(yyscanner);
returnCharToStream(yyscanner,(char)cc);
//printf("%c=yyinput()\n",cc);
return cc;
}
}
static void unputChar(yyscan_t yyscanner,const QCString &expr,QCString *rest,uint &pos,char c)
{
//printf("unputChar(%s,%s,%d,%c)\n",qPrint(expr),rest ? rest->data() : 0,pos,c);
if (pos<expr.length())
{
pos++;
}
else if (rest)
{
//printf("Prepending to rest!\n");
char cs[2];cs[0]=c;cs[1]='\0';
rest->prepend(cs);
}
else
{
//unput(c);
returnCharToStream(yyscanner,c);
}
//printf("result: unputChar(%s,%s,%d,%c)\n",qPrint(expr),rest ? rest->data() : 0,pos,c);
}
/** Returns a reference to a Define object given its name or 0 if the Define does
* not exist.
*/
static Define *isDefined(yyscan_t yyscanner,const QCString &name)
{
YY_EXTRA_TYPE state = preYYget_extra(yyscanner);
bool undef = false;
auto findDefine = [&undef,&name](DefineMap &map)
{
Define *d=0;
auto it = map.find(name.str());
if (it!=map.end())
{
d = &it->second;
if (d->undef)
{
undef=true;
d=0;
}
}
return d;
};
Define *def = findDefine(state->localDefines);
if (def==0 && !undef)
{
def = findDefine(state->contextDefines);
}
return def;
}
static void initPredefined(yyscan_t yyscanner,const QCString &fileName)
{
YY_EXTRA_TYPE state = preYYget_extra(yyscanner);
// add predefined macros
const StringVector &predefList = Config_getList(PREDEFINED);
for (const auto &ds : predefList)
{
size_t i_equals=ds.find('=');
size_t i_obrace=ds.find('(');
size_t i_cbrace=ds.find(')');
bool nonRecursive = i_equals!=std::string::npos && i_equals>0 && ds[i_equals-1]==':';
if ((i_obrace==0) || (i_equals==0) || (i_equals==1 && ds[i_equals-1]==':'))
{
continue; // no define name
}
if (i_obrace<i_equals && i_cbrace<i_equals &&
i_obrace!=std::string::npos && i_cbrace!=std::string::npos &&
i_obrace<i_cbrace
) // predefined function macro definition
{
static const reg::Ex reId(R"(\a\w*)");
reg::Iterator end;
bool varArgs = false;
int count = 0;
std::map<std::string,int> argMap;
if (ds.substr(i_obrace+1,i_cbrace-i_obrace-1)=="...")
{
varArgs = true;
argMap.emplace("__VA_ARGS__",count);
count++;
}
else
{
size_t i=i_obrace+1;
//printf("predefined function macro '%s'\n",ds.c_str());
reg::Iterator it(ds,reId,i);
// gather the formal arguments in a dictionary
while (i<i_cbrace && it!=end)
{
const auto &match = *it;
size_t pi = match.position();
size_t l = match.length();
if (l>0) // see bug375037
{
argMap.emplace(match.str(),count);
count++;
i=pi+l;
}
else
{
i++;
}
++it;
}
}
// strip definition part
std::string definition;
std::string in=ds.substr(i_equals+1);
reg::Iterator re_it(in,reId);
size_t i=0;
// substitute all occurrences of formal arguments by their
// corresponding markers
for (; re_it!=end; ++re_it)
{
const auto &match = *re_it;
size_t pi = match.position();
size_t l = match.length();
if (pi>i) definition+=in.substr(i,pi-i);
auto it = argMap.find(match.str());
if (it!=argMap.end())
{
int argIndex = it->second;
QCString marker;
marker.sprintf(" @%d ",argIndex);
definition+=marker.str();
}
else
{
definition+=match.str();
}
i=pi+l;
}
definition+=in.substr(i);
// add define definition to the dictionary of defines for this file
std::string dname = ds.substr(0,i_obrace);
if (!dname.empty())
{
Define def;
def.name = dname;
def.definition = definition;
def.nargs = count;
def.isPredefined = TRUE;
def.nonRecursive = nonRecursive;
def.fileDef = state->yyFileDef;
def.fileName = fileName;
def.varArgs = varArgs;
state->contextDefines.insert(std::make_pair(def.name.str(),def));
//printf("#define '%s' '%s' #nargs=%d\n",
// qPrint(def->name),qPrint(def->definition),def->nargs);
}
}
else if (!ds.empty()) // predefined non-function macro definition
{
//printf("predefined normal macro '%s'\n",ds.c_str());
Define def;
if (i_equals==std::string::npos) // simple define without argument
{
def.name = ds;
def.definition = "1"; // substitute occurrences by 1 (true)
}
else // simple define with argument
{
int ine=static_cast<int>(i_equals) - (nonRecursive ? 1 : 0);
def.name = ds.substr(0,ine);
def.definition = ds.substr(i_equals+1);
}
if (!def.name.isEmpty())
{
def.nargs = -1;
def.isPredefined = TRUE;
def.nonRecursive = nonRecursive;
def.fileDef = state->yyFileDef;
def.fileName = fileName;
state->contextDefines.insert(std::make_pair(def.name.str(),def));
}
}
}
}
///////////////////////////////////////////////////////////////////////////////////////////////
struct Preprocessor::Private
{
yyscan_t yyscanner;
preYY_state state;
};
void Preprocessor::addSearchDir(const QCString &dir)
{
YY_EXTRA_TYPE state = preYYget_extra(p->yyscanner);
FileInfo fi(dir.str());
if (fi.isDir()) state->pathList.push_back(fi.absFilePath());
}
Preprocessor::Preprocessor() : p(std::make_unique<Private>())
{
preYYlex_init_extra(&p->state,&p->yyscanner);
addSearchDir(".");
}
Preprocessor::~Preprocessor()
{
preYYlex_destroy(p->yyscanner);
}
void Preprocessor::processFile(const QCString &fileName,BufStr &input,BufStr &output)
{
// printf("Preprocessor::processFile(%s)\n",fileName);
yyscan_t yyscanner = p->yyscanner;
YY_EXTRA_TYPE state = preYYget_extra(p->yyscanner);
struct yyguts_t *yyg = (struct yyguts_t*)p->yyscanner;
#ifdef FLEX_DEBUG
preYYset_debug(1,yyscanner);
#endif
printlex(yy_flex_debug, TRUE, __FILE__, qPrint(fileName));
uint orgOffset=output.curPos();
//printf("##########################\n%s\n####################\n",
// qPrint(input));
state->macroExpansion = Config_getBool(MACRO_EXPANSION);
state->expandOnlyPredef = Config_getBool(EXPAND_ONLY_PREDEF);
state->skip=FALSE;
state->curlyCount=0;
state->nospaces=FALSE;
state->inputBuf=&input;
state->inputBufPos=0;
state->outputBuf=&output;
state->includeStack.clear();
state->expandedDict.clear();
state->contextDefines.clear();
while (!state->condStack.empty()) state->condStack.pop();
setFileName(yyscanner,fileName);
state->inputFileDef = state->yyFileDef;
//yyextra->defineManager.startContext(state->yyFileName);
initPredefined(yyscanner,fileName);
state->yyLineNr = 1;
state->yyColNr = 1;
state->ifcount = 0;
BEGIN( Start );
state->expectGuard = guessSection(fileName)==Entry::HEADER_SEC;
state->guardName.resize(0);
state->lastGuardName.resize(0);
state->guardExpr.resize(0);
preYYlex(yyscanner);
while (!state->condStack.empty())
{
const std::unique_ptr<CondCtx> &ctx = state->condStack.top();
QCString sectionInfo = " ";
if (ctx->sectionId!=" ") sectionInfo.sprintf(" with label '%s' ",qPrint(ctx->sectionId.stripWhiteSpace()));
warn(fileName,ctx->lineNr,"Conditional section%sdoes not have "
"a corresponding \\endcond command within this file.",qPrint(sectionInfo));
state->condStack.pop();
}
// make sure we don't extend a \cond with missing \endcond over multiple files (see bug 624829)
forceEndCondSection(yyscanner);
if (Debug::isFlagSet(Debug::Preprocessor))
{
std::lock_guard<std::mutex> lock(g_debugMutex);
char *orgPos=output.data()+orgOffset;
char *newPos=output.data()+output.curPos();
Debug::print(Debug::Preprocessor,0,"Preprocessor output of %s (size: %d bytes):\n",qPrint(fileName),newPos-orgPos);
int line=1;
Debug::print(Debug::Preprocessor,0,"---------\n");
if (!Debug::isFlagSet(Debug::NoLineNo)) Debug::print(Debug::Preprocessor,0,"00001 ");
while (orgPos<newPos)
{
putchar(*orgPos);
if (*orgPos=='\n' && !Debug::isFlagSet(Debug::NoLineNo)) Debug::print(Debug::Preprocessor,0,"%05d ",++line);
orgPos++;
}
Debug::print(Debug::Preprocessor,0,"\n---------\n");
if (yyextra->contextDefines.size()>0)
{
Debug::print(Debug::Preprocessor,0,"Macros accessible in this file (%s):\n", qPrint(fileName));
Debug::print(Debug::Preprocessor,0,"---------\n");
for (auto &kv : yyextra->contextDefines)
{
Debug::print(Debug::Preprocessor,0,"%s ",qPrint(kv.second.name));
}
for (auto &kv : yyextra->localDefines)
{
Debug::print(Debug::Preprocessor,0,"%s ",qPrint(kv.second.name));
}
Debug::print(Debug::Preprocessor,0,"\n---------\n");
}
else
{
Debug::print(Debug::Preprocessor,0,"No macros accessible in this file (%s).\n", qPrint(fileName));
}
}
{
std::lock_guard<std::mutex> lock(g_updateGlobals);
for (const auto &inc : state->includeRelations)
{
if (inc->fromFileDef)
{
inc->fromFileDef->addIncludeDependency(inc->toFileDef,inc->includeName,inc->local,inc->imported);
}
if (inc->toFileDef && inc->fromFileDef)
{
inc->toFileDef->addIncludedByDependency(inc->fromFileDef,inc->fromFileDef->docName(),inc->local,inc->imported);
}
}
// add the macro definition for this file to the global map
Doxygen::macroDefinitions.emplace(std::make_pair(state->yyFileName.str(),std::move(state->macroDefinitions)));
}
//yyextra->defineManager.endContext();
printlex(yy_flex_debug, FALSE, __FILE__, qPrint(fileName));
// printf("Preprocessor::processFile(%s) finished\n",fileName);
}
#if USE_STATE2STRING
#include "pre.l.h"
#endif
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