reg 命名空间参考

Namespace for the regular expression functions 更多...

类
class	Ex
	Class representing a regular expression. 更多...
class	Iterator
	Iterator class to iterator through matches. 更多...
class	Match
	Object representing the matching results. 更多...
class	PToken
	Class representing a token in the compiled regular expression token stream. 更多...
class	SubMatch
	Object representing the match results of a capture range. 更多...

函数
static bool	isspace (char c)
static bool	isalpha (char c)
static bool	isdigit (char c)
static bool	isalnum (char c)
static std::string	wildcard2regex (const std::string &pattern)
bool	search (const std::string &str, Match &match, const Ex &re, size_t pos=0)
	Search in a given string str starting at position pos for a match against regular expression re. 更多...
bool	search (const std::string &str, const Ex &re, size_t pos=0)
	Search in a given string str starting at position pos for a match against regular expression re. 更多...
bool	match (const std::string &str, Match &match, const Ex &re)
	Matches a given string str for a match against regular expression re. 更多...
bool	match (const std::string &str, const Ex &re)
	Matches a given string str for a match against regular expression re. 更多...
std::string	replace (const std::string &str, const Ex &re, const std::string &replacement)
	Searching in a given input string for parts that match regular expression re and replaces those parts by string replacement. 更多...

详细描述

Namespace for the regular expression functions

函数说明

isalnum()

static bool reg::isalnum ( char  c )

inlinestatic

在文件 regex.cpp 第 48 行定义.

{
  return isalpha(c) || isdigit(c);
}

引用了 isalpha() , 以及 isdigit().

被这些函数引用 isId(), isIdJS(), reg::Ex::Private::matchAt() , 以及 nextUTF8CharPosition().

isalpha()

static bool reg::isalpha ( char  c )

inlinestatic

在文件 regex.cpp 第 38 行定义.

{
  return static_cast<unsigned char>(c)>=128 || (c>='a' && c<='z') || (c>='A' && c<='Z');
}

被这些函数引用 Portable::isAbsolutePath(), isalnum(), reg::Ex::Private::matchAt() , 以及 readConfiguration().

isdigit()

static bool reg::isdigit ( char  c )

inlinestatic

在文件 regex.cpp 第 43 行定义.

{
  return c>='0' && c<='9';
}

被这些函数引用 isalnum(), reg::Ex::Private::matchAt() , 以及 nextUTF8CharPosition().

isspace()

static bool reg::isspace ( char  c )

inlinestatic

在文件 regex.cpp 第 33 行定义.

{
  return c==' ' || c=='\t' || c=='\n' || c=='\r';
}

被这些函数引用 convertToHtml(), MemberDefImpl::displayDefinition(), HtmlCodeGenerator::docify(), HtmlDocVisitor::filter(), HtmlDocVisitor::filterQuotedCdataAttr(), reg::Ex::Private::matchAt(), DocIncOperator::parse(), removeRedundantWhiteSpace(), MemberDefImpl::setInitializer(), MemberDefImpl::writeDocumentation() , 以及 TextGeneratorHtml::writeString().

match() [1/2]

bool reg::match	(	const std::string &	str,
		const Ex &	re
	)

Matches a given string str for a match against regular expression re.

Returns true iff a match was found for the whole string.

在文件 regex.cpp 第 734 行定义.

{
  Match match;
  return re.match(str,match,0) && match.position()==0 && match.length()==str.length();
}

引用了 reg::Ex::match() , 以及 match().

match() [2/2]

bool reg::match	(	const std::string &	str,
		Match &	match,
		const Ex &	re
	)

Matches a given string str for a match against regular expression re.

Returns true iff a match was found for the whole string. Any capture groups are returned via the match object.

在文件 regex.cpp 第 729 行定义.

{
  return re.match(str,match,0) && match.position()==0 && match.length()==str.length();
}

引用了 reg::Ex::match().

被这些函数引用 addToIndices(), addVariableToFile(), DocParser::checkArgumentName(), VHDLOutlineParser::checkInlineCode(), convertCharEntitiesToUTF8(), MemberDefImpl::displayDefinition(), expandAliasRec(), extractCanonicalType(), extractClassNameFromType(), extractDirection(), extractTitleId(), filterTitle(), findAndRemoveWord(), findFunctionPtr(), findIndex(), findMembersWithSpecificName(), MemberDefImpl::getClassDefOfAnonymousType(), getDefs(), getFilterFromList(), getTemplateArgumentsInName(), DocParser::handleStyleArgument(), VhdlDocGen::isNumber(), isVarWithConstructor(), linkifyText(), loadExtensions(), loadStylesheet(), match(), matchArguments2(), matchExcludedSymbols(), normalizeNonTemplateArgumentsInString(), patternMatch(), removeAnonymousScopes(), TemplateNodeMarkers::render(), replace(), replaceColorMarkers(), search(), StyleData::setStyle(), simplifyTypeForTable(), split(), StyleData::StyleData(), substituteTemplateArgumentsInString(), substituteTemplatesInString(), MemberDefImpl::writeDeclaration(), MemberDefImpl::writeDocumentation() , 以及 writeMarkerList().

replace()

std::string reg::replace	(	const std::string &	str,
		const Ex &	re,
		const std::string &	replacement
	)

Searching in a given input string for parts that match regular expression re and replaces those parts by string replacement.

在文件 regex.cpp 第 740 行定义.

{
  std::string result;
  Match match;
  size_t p=0;
  while (re.match(str,match,p))
  {
    size_t i=match.position();
    size_t l=match.length();
    if (i>p) result+=str.substr(p,i-p);
    result+=replacement;
    p=i+l;
  }
  if (p<str.length()) result+=str.substr(p);
  return result;
}

引用了 reg::Ex::match() , 以及 match().

被这些函数引用 VhdlDocGen::addBaseClass(), VHDLOutlineParser::checkInlineCode(), FileInfo::correctPath(), correctPath(), FlowChart::printNode(), replaceAnonymousScopes(), substitute() , 以及 TemplateNodeText::TemplateNodeText().

search() [1/2]

bool reg::search	(	const std::string &	str,
		const Ex &	re,
		size_t	pos = 0
	)

Search in a given string str starting at position pos for a match against regular expression re.

Returns true iff a match was found.

在文件 regex.cpp 第 723 行定义.

{
  Match match;
  return re.match(str,match,pos);
}

引用了 reg::Ex::match() , 以及 match().

search() [2/2]

bool reg::search	(	const std::string &	str,
		Match &	match,
		const Ex &	re,
		size_t	pos = 0
	)

Search in a given string str starting at position pos for a match against regular expression re.

Returns true iff a match was found. Details of what part of the string has matched is returned via the match object.

An example to show how to match all identifiers in a string.

static reg::Ex re(R"(\a\w*)");
std::string = u8"void(Func是<B_C::Códe42>(42));";
while (reg::search(str,match,re,pos))
{
  std::cout << match.str() << std::endl;
  pos=match.position()+match.length();
}

produces:

void
Func是
B_C
Códe42

参见

Ex::Ex() for details on the regular expression patterns.

在文件 regex.cpp 第 718 行定义.

{
  return re.match(str,match,pos);
}

引用了 reg::Ex::match() , 以及 match().

被这些函数引用 HtmlHelpIndex::addItem(), addVariableToFile(), VHDLOutlineParser::checkInlineCode(), MemberDefImpl::displayDefinition(), expandAliasRec(), extractTitleId(), findFunctionPtr(), findIndex(), MemberDefImpl::getClassDefOfAnonymousType(), isVarWithConstructor(), loadExtensions(), loadStylesheet(), matchExcludedSymbols(), StyleData::setStyle(), simplifyTypeForTable(), StyleData::StyleData(), MemberDefImpl::writeDeclaration() , 以及 MemberDefImpl::writeDocumentation().

wildcard2regex()

static std::string reg::wildcard2regex ( const std::string &  pattern )

static

在文件 regex.cpp 第 617 行定义.

{
  std::string result="^"; // match start of input
  char c;
  const char *p = pattern.c_str();
  while ((c=*p++))
  {
    switch(c)
    {
      case '*':
        result+=".*";
        break; // '*' => '.*'
      case '?':
        result+='.';
        break; // '?' => '.'
      case '.':
      case '+':
      case '\\':
      case '$':
      case '^':
      case '(':
      case ')':
         result+='\\'; result+=c;  // escape
         break;
      case '[':
         if (*p=='^') // don't escape ^ after [
         {
           result+="[^";
           p++;
         }
         else
         {
           result+=c;
         }
        break;
      default:  // just copy
        result+=c;
        break;
    }
  }
  result+='$'; // match end of input
  return result;
}

引用了 reg::Ex::p.