LexCodeParser Class Reference

LEX code scanner. More...

#include <src/lexcode.h>

Inheritance diagram for LexCodeParser:

Collaboration diagram for LexCodeParser:

Classes
struct	Private

Public Member Functions
	LexCodeParser ()
	~LexCodeParser () override
void	parseCode (OutputCodeList &codeOutIntf, const QCString &scopeName, const QCString &input, SrcLangExt, bool stripCodeComments, bool isExampleBlock, const QCString &exampleName=QCString(), const FileDef *fileDef=nullptr, int startLine=-1, int endLine=-1, bool inlineFragment=FALSE, const MemberDef *memberDef=nullptr, bool showLineNumbers=TRUE, const Definition *searchCtx=nullptr, bool collectXRefs=TRUE) override
	Parses a source file or fragment with the goal to produce highlighted and cross-referenced output.
void	resetCodeParserState () override
	Resets the state of the code parser.

Private Attributes
std::unique_ptr< Private >	p

Detailed Description

LEX code scanner.

Definition at line 29 of file lexcode.h.

Constructor & Destructor Documentation

LexCodeParser()

LexCodeParser::LexCodeParser

(

)

Definition at line 1175 of file lexcode.l.

                             : p(std::make_unique<Private>())
{
  lexcodeYYlex_init_extra(&p->state, &p->yyscanner);
#ifdef FLEX_DEBUG
  lexcodeYYset_debug(Debug::isFlagSet(Debug::Lex_lexcode)?1:0,p->yyscanner);
#endif
  resetCodeParserState();
}

References Debug::isFlagSet(), Debug::Lex_lexcode, p, and resetCodeParserState().

~LexCodeParser()

LexCodeParser::~LexCodeParser ( )

override

Definition at line 1184 of file lexcode.l.

{
  lexcodeYYlex_destroy(p->yyscanner);
}

References p.

Member Function Documentation

parseCode()

void LexCodeParser::parseCode ( OutputCodeList & codeOutList, const QCString & scopeName, const QCString & input, SrcLangExt lang, bool stripCodeComments, bool isExampleBlock, const QCString & exampleName = QCString(), const FileDef * fileDef = nullptr, int startLine = -1, int endLine = -1, bool inlineFragment = FALSE, const MemberDef * memberDef = nullptr, bool showLineNumbers = TRUE, const Definition * searchCtx = nullptr, bool collectXRefs = TRUE )

overridevirtual

Parses a source file or fragment with the goal to produce highlighted and cross-referenced output.

Parameters

[in]	codeOutList	interface for writing the result.
[in]	scopeName	Name of scope to which the code belongs.
[in]	input	Actual code in the form of a string
[in]	lang	The programming language of the code fragment.
[in]	stripCodeComments	signals whether or not for the code block the doxygen comments should be stripped.
[in]	isExampleBlock	TRUE iff the code is part of an example.
[in]	exampleName	Name of the example.
[in]	fileDef	File definition to which the code is associated.
[in]	startLine	Starting line in case of a code fragment.
[in]	endLine	Ending line of the code fragment.
[in]	inlineFragment	Code fragment that is to be shown inline as part of the documentation.
[in]	memberDef	Member definition to which the code is associated (non null in case of an inline fragment for a member).
[in]	showLineNumbers	if set to TRUE and also fileDef is not 0, line numbers will be added to the source fragment
[in]	searchCtx	context under which search data has to be stored.
[in]	collectXRefs	collect cross-reference relations.

Implements CodeParserInterface.

Definition at line 1196 of file lexcode.l.

{
  yyscan_t yyscanner = p->yyscanner;
  struct yyguts_t *yyg = (struct yyguts_t*)yyscanner;
 
  if (input.isEmpty()) return;
 
  DebugLex debugLex(Debug::Lex_lexcode, __FILE__, fileDef ? qPrint(fileDef->fileName()) : nullptr);
 
  yyextra->code = &codeOutIntf;
  yyextra->inputString   = input.data();
  yyextra->inputPosition = 0;
  yyextra->fileName      = fileDef ? fileDef->fileName():"";
  yyextra->currentFontClass = nullptr;
  yyextra->insideCodeLine = false;
 
  yyextra->classScope=scopeName;
  yyextra->currentMemberDef=memberDef;
  yyextra->searchCtx=searchCtx;
  yyextra->collectXRefs=collectXRefs;
 
  if (startLine!=-1)
    yyextra->yyLineNr    = startLine;
  else
    yyextra->yyLineNr    = 1;
 
  if (endLine!=-1)
    yyextra->inputLines  = endLine+1;
  else
    yyextra->inputLines  = yyextra->yyLineNr + countLines(yyscanner) - 1;
 
  yyextra->startCCodeLine = yyextra->yyLineNr;
  yyextra->stripCodeComments = stripCodeComments;
  yyextra->exampleBlock  = isExampleBlock;
  yyextra->exampleName   = exampleName;
  yyextra->sourceFileDef = fileDef;
  yyextra->lineNumbers   = fileDef!=0 && showLineNumbers;
 
  if (isExampleBlock && fileDef==0)
  {
    // create a dummy filedef for the example
    yyextra->exampleFileDef = createFileDef(QCString(),!exampleName.isEmpty() ? exampleName : QCString("generated"));
    yyextra->sourceFileDef = yyextra->exampleFileDef.get();
  }
 
  if (yyextra->sourceFileDef)
  {
    setCurrentDoc(yyscanner,"l00001");
  }
 
  yyextra->includeCodeFragment = inlineFragment;
  // Starts line 1 on the output
  startCodeLine(yyscanner);
 
  lexcodeYYrestart( nullptr, yyscanner );
  BEGIN( DefSection );
  lexcodeYYlex(yyscanner);
 
  if (yyextra->insideCodeLine)
  {
    endCodeLine(yyscanner);
  }
  if (yyextra->exampleFileDef)
  {
    // delete the temporary file definition used for this example
    yyextra->exampleFileDef.reset();
    yyextra->sourceFileDef=0;
  }
}

References countLines(), createFileDef(), QCString::data(), endCodeLine(), FileDef::fileName(), QCString::isEmpty(), Debug::Lex_lexcode, p, qPrint(), setCurrentDoc(), and startCodeLine().

resetCodeParserState()

void LexCodeParser::resetCodeParserState ( )

overridevirtual

Resets the state of the code parser.

Since multiple code fragments can together form a single example, an explicit function is used to reset the code parser state.

See also

parseCode()

Implements CodeParserInterface.

Definition at line 1189 of file lexcode.l.

{
  struct yyguts_t *yyg = (struct yyguts_t*)p->yyscanner;
  yyextra->currentDefinition = nullptr;
  yyextra->currentMemberDef = nullptr;
}

References p.

Referenced by LexCodeParser().

Member Data Documentation

p

std::unique_ptr<Private> LexCodeParser::p

private

Definition at line 55 of file lexcode.h.

Referenced by LexCodeParser(), parseCode(), resetCodeParserState(), and ~LexCodeParser().

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The documentation for this class was generated from the following files:

• src/lexcode.h
• src/lexcode.l