dstring.cpp File Reference

#include "dstring.h"
#include <cctype>
#include <climits>
#include <cstdarg>
#include <cstdio>
#include <cstdlib>
#include "regex.h"

Include dependency graph for dstring.cpp:

Go to the source code of this file.

Functions
char	toLowerChar (char c)
static bool	ok_in_base (char c, int base)
char *	dstrdup (const char *str)
void	dstrfree (const char *str)
	Frees the memory allocated using dstrdup().
char *	dstrncpy (char *dst, const char *src, size_t len)
int	dstricmp (const char *s1, const char *s2)
int	dstrnicmp (const char *s1, const char *s2, size_t len)
DString	substitute (const DString &s, const DString &src, const DString &dst)
	substitute all occurrences of src in s by dst
DString	substitute (const DString &s, const DString &src, const DString &dst, int skip_seq)
	substitute all occurrences of src in s by dst, but skip each consecutive sequence of src where the number consecutive src matches skip_seq; if skip_seq is negative, skip any number of consecutive src

Function Documentation

dstrdup()

char * dstrdup

(

const char *

s

)

Returns a copy of a string s. Note that memory is passed to the caller, use dstrfree() to release.

Definition at line 424 of file dstring.cpp.

{
  if ( !str ) return nullptr;
  char *dst = new char[dstrlen(str)+1];
  return strcpy( dst, str );
}

References dstrlen().

dstrfree()

void dstrfree

(

const char *

str

)

Frees the memory allocated using dstrdup().

Definition at line 431 of file dstring.cpp.

{
  delete [](str);
}

dstricmp()

int dstricmp	(	const char *	s1,
		const char *	s2 )

Definition at line 444 of file dstring.cpp.

{
  if ( !s1 || !s2 )
  {
    return s1 == s2 ? 0 : static_cast<int>(s2 - s1);
  }
  int res = 0;
  char c = 0;
  for ( ; !(res = ((c=toLowerChar(*s1)) - toLowerChar(*s2))); s1++, s2++ )
  {
    if ( !c ) // strings are equal
    {
      break;
    }
  }
  return res;
}

References toLowerChar().

Referenced by compareString(), dstricmp(), dstricmp(), dstricmp(), dstricmp_sort(), VhdlDocGen::findAllArchitectures(), DocGroup::findExistingGroup(), FlowChart::findLabel(), VhdlDocGen::findVhdlClass(), readConfiguration(), stripFromPath(), transcodeCharacterBuffer(), transcodeCharacterStringToUTF8(), FlowChart::writeFlowLinks(), ClassDefImpl::writeIncludeFilesForSlice(), and VhdlDocGen::writeProcedureProto().

dstrncpy()

char * dstrncpy	(	char *	dst,
		const char *	src,
		size_t	len )

Definition at line 436 of file dstring.cpp.

{
  if ( !src ) return nullptr;
  strncpy( dst, src, len );
  if ( len > 0 ) dst[len-1] = '\0';
  return dst;
}

dstrnicmp()

int dstrnicmp	(	const char *	s1,
		const char *	s2,
		size_t	len )

Definition at line 462 of file dstring.cpp.

{
  if ( !s1 || !s2 )
  {
    return static_cast<int>(s2 - s1);
  }
  for ( ; len--; s1++, s2++ )
  {
    char c = toLowerChar(*s1);
    int res = c-toLowerChar(*s2);
    if ( res!=0 ) // strings are not equal
    {
      return res;
    }
    if ( c==0 ) // strings are equal
    {
      break;
    }
  }
  return 0;
}

References toLowerChar().

Referenced by DString::contains(), dstrnicmp(), dstrnicmp(), dstrnicmp(), and DString::rfind_insensitive().

ok_in_base()

bool ok_in_base ( char c, int base )

static

Definition at line 161 of file dstring.cpp.

{
    if ( base <= 10 )
      return c>='0' && c<='9' && (c-'0') < base;
    else
      return (c>='0' && c<='9') ||
             (c >= 'a' && c < char('a'+base-10)) ||
             (c >= 'A' && c < char('A'+base-10));
}

Referenced by DString::toLong(), DString::toUInt64(), and DString::toULong().

substitute() [1/2]

DString substitute	(	const DString &	s,
		const DString &	src,
		const DString &	dst )

substitute all occurrences of src in s by dst

Definition at line 485 of file dstring.cpp.

{
  if (s.empty() || src.empty()) return s;
  const char *q = nullptr, *p = nullptr;
  size_t srcLen = src.length();
  size_t dstLen = dst.length();
  size_t resLen = 0;
  if (srcLen!=dstLen)
  {
    int count = 0;
    for (p = s.data(); (q=strstr(p,src.data()))!=nullptr; p=q+srcLen) count++;
    resLen = s.length()+count*(dstLen-srcLen);
  }
  else // result has same size as s
  {
    resLen = s.length();
  }
  DString result(resLen, DString::ExplicitSize);
  char *r = result.rawData();
  for (p = s.data(); (q=strstr(p,src.data()))!=nullptr; p=q+srcLen)
  {
    int l = static_cast<int>(q-p);
    memcpy(r,p,l);
    r+=l;
 
    if (dstLen>0) memcpy(r,dst.data(),dstLen);
    r+=dstLen;
  }
  if (r)
  {
    dstrcpy(r,p);
  }
  //printf("substitute(%s,%s,%s)->%s\n",s,src,dst,result.data());
  return result;
}

References DString::data(), dstrcpy(), DString::empty(), DString::ExplicitSize, DString::length(), and DString::rawData().

Referenced by abbreviate(), addEnumValuesToEnums(), FlowChart::addFlowChart(), addFrom(), addGlobalFunction(), HtmlHelpIndex::addItem(), MemberDefImpl::addListReference(), addMemberFunction(), addMethodToClass(), addModule(), addPageToContext(), Markdown::Private::addStrEscapeUtf8Nbsp(), addVariable(), addVariableToClass(), buildListOfUsingDecls(), buildNamespaceList(), convertFileId2Var(), Portable::correctPath(), MemberDefImpl::displayDefinition(), findDirDocumentation(), DocParser::findDocsForMemberOrCompound(), findGroupScope(), findMember(), findUsingDeclarations(), findUsingDirectives(), HtmlGenerator::fixSpaces(), format_warn(), generateClassOrGlobalLink(), generateClassOrGlobalLink(), generateJSLink(), generateJSNavTree(), RefList::generatePage(), VhdlDocGen::getClassName(), DocPara::handleStartCode(), HtmlGenerator::init(), linkifyText(), linkToText(), makeDisplayName(), makeDisplayName(), matchExcludedSymbols(), Markdown::process(), Markdown::Private::processLink(), resolveRef(), DotFilePatcher::run(), SearchIndex::setCurrentDoc(), stripIndentation(), substitute(), substituteHtmlKeywords(), substituteLatexKeywords(), Portable::system(), ConfigImpl::takeStartComment(), ConfigImpl::takeStoreRepl(), ConfigImpl::takeUserComment(), unescapeCRef(), validatingParseDoc(), warn_line(), MemberDefImpl::warnIfUndocumented(), writeAlphabeticalClassList(), MemberDefImpl::writeDeclaration(), MemberList::writeDeclarations(), writeDefArgumentList(), writeDefaultLayoutFile(), MemberDefImpl::writeDocumentation(), writeJavaScriptSearchIndex(), HtmlGenerator::writeNavigationPath(), PlantumlManager::writePlantUMLSource(), HtmlGenerator::writeSearchData(), HtmlGenerator::writeSearchPage(), and VhdlDocGen::writeVHDLTypeDocumentation().

substitute() [2/2]

DString substitute	(	const DString &	s,
		const DString &	src,
		const DString &	dst,
		int	skip_seq )

substitute all occurrences of src in s by dst, but skip each consecutive sequence of src where the number consecutive src matches skip_seq; if skip_seq is negative, skip any number of consecutive src

Definition at line 526 of file dstring.cpp.

{
  if (s.empty() || src.empty()) return s;
  const char *p = nullptr, *q = nullptr;
  size_t srcLen = src.length();
  size_t dstLen = dst.length();
  size_t resLen = 0;
  if (srcLen!=dstLen)
  {
    int count = 0;
    for (p=s.data(); (q=strstr(p,src.data()))!=nullptr; p=q+srcLen) count++;
    resLen = s.length()+count*(dstLen-srcLen);
  }
  else // result has same size as s
  {
    resLen = s.length();
  }
  DString result(resLen, DString::ExplicitSize);
  char *r = result.rawData();
  for (p = s.data(); (q=strstr(p,src.data()))!=nullptr; p=q+srcLen)
  {
    // search a consecutive sequence of src
    int seq = 0, skip = 0;
    if (skip_seq)
    {
      for (const char *n=q+srcLen; dstrncmp(n,src.data(),srcLen)==0; seq=1+skip, n+=srcLen)
        ++skip; // number of consecutive src after the current one
 
      // verify the allowed number of consecutive src to skip
      if (skip_seq > 0 && skip_seq != seq)
        seq = skip = 0;
    }
 
    // skip a consecutive sequence of src when necessary
    int l = static_cast<int>((q + seq * srcLen)-p);
    memcpy(r,p,l);
    r+=l;
 
    if (skip)
    {
      // skip only the consecutive src found after the current one
      q += skip * srcLen;
      // the next loop will skip the current src, aka (p=q+srcLen)
      continue;
    }
 
    if (dstLen>0) memcpy(r,dst.data(),dstLen);
    r+=dstLen;
  }
  dstrcpy(r,p);
  result.resize(strlen(result.data()));
  //printf("substitute(%s,%s,%s)->%s\n",s,src,dst,result.data());
  return result;
}

References DString::data(), dstrcpy(), dstrncmp(), DString::empty(), DString::ExplicitSize, DString::length(), DString::rawData(), and DString::resize().

toLowerChar()

char toLowerChar ( char c )

inline

Definition at line 29 of file dstring.cpp.

{
  return c>='A' && c<='Z' ? c|0x20 : c;
}

Referenced by DString::contains(), dstricmp(), dstrnicmp(), and DString::rfind_insensitive().