LCOV - code coverage report
Current view: top level - port - cpl_string.h (source / functions) Hit Total Coverage
Test: gdal_filtered.info Lines: 128 136 94.1 %
Date: 2026-03-04 01:45:47 Functions: 59 61 96.7 %

          Line data    Source code
       1             : /**********************************************************************
       2             :  *
       3             :  * Name:     cpl_string.h
       4             :  * Project:  CPL - Common Portability Library
       5             :  * Purpose:  String and StringList functions.
       6             :  * Author:   Daniel Morissette, dmorissette@mapgears.com
       7             :  *
       8             :  **********************************************************************
       9             :  * Copyright (c) 1998, Daniel Morissette
      10             :  * Copyright (c) 2008-2014, Even Rouault <even dot rouault at spatialys.com>
      11             :  *
      12             :  * SPDX-License-Identifier: MIT
      13             :  ****************************************************************************/
      14             : 
      15             : #ifndef CPL_STRING_H_INCLUDED
      16             : #define CPL_STRING_H_INCLUDED
      17             : 
      18             : #include "cpl_error.h"
      19             : #include "cpl_conv.h"
      20             : #include "cpl_vsi.h"
      21             : 
      22             : #include <stdbool.h>
      23             : 
      24             : /**
      25             :  * \file cpl_string.h
      26             :  *
      27             :  * Various convenience functions for working with strings and string lists.
      28             :  *
      29             :  * A StringList is just an array of strings with the last pointer being
      30             :  * NULL.  An empty StringList may be either a NULL pointer, or a pointer to
      31             :  * a pointer memory location with a NULL value.
      32             :  *
      33             :  * A common convention for StringLists is to use them to store name/value
      34             :  * lists.  In this case the contents are treated like a dictionary of
      35             :  * name/value pairs.  The actual data is formatted with each string having
      36             :  * the format "<name>:<value>" (though "=" is also an acceptable separator).
      37             :  * A number of the functions in the file operate on name/value style
      38             :  * string lists (such as CSLSetNameValue(), and CSLFetchNameValue()).
      39             :  *
      40             :  * To some extent the CPLStringList C++ class can be used to abstract
      41             :  * managing string lists a bit but still be able to return them from C
      42             :  * functions.
      43             :  *
      44             :  */
      45             : 
      46             : CPL_C_START
      47             : 
      48             : char CPL_DLL **CSLAddString(char **papszStrList,
      49             :                             const char *pszNewString) CPL_WARN_UNUSED_RESULT;
      50             : char CPL_DLL **
      51             : CSLAddStringMayFail(char **papszStrList,
      52             :                     const char *pszNewString) CPL_WARN_UNUSED_RESULT;
      53             : int CPL_DLL CSLCount(CSLConstList papszStrList);
      54             : const char CPL_DLL *CSLGetField(CSLConstList, int);
      55             : void CPL_DLL CPL_STDCALL CSLDestroy(char **papszStrList);
      56             : char CPL_DLL **CSLDuplicate(CSLConstList papszStrList) CPL_WARN_UNUSED_RESULT;
      57             : char CPL_DLL **CSLMerge(char **papszOrig,
      58             :                         CSLConstList papszOverride) CPL_WARN_UNUSED_RESULT;
      59             : 
      60             : char CPL_DLL **CSLTokenizeString(const char *pszString) CPL_WARN_UNUSED_RESULT;
      61             : char CPL_DLL **
      62             : CSLTokenizeStringComplex(const char *pszString, const char *pszDelimiter,
      63             :                          int bHonourStrings,
      64             :                          int bAllowEmptyTokens) CPL_WARN_UNUSED_RESULT;
      65             : char CPL_DLL **CSLTokenizeString2(const char *pszString,
      66             :                                   const char *pszDelimiter,
      67             :                                   int nCSLTFlags) CPL_WARN_UNUSED_RESULT;
      68             : 
      69             : /** Flag for CSLTokenizeString2() to honour strings */
      70             : #define CSLT_HONOURSTRINGS 0x0001
      71             : /** Flag for CSLTokenizeString2() to allow empty tokens */
      72             : #define CSLT_ALLOWEMPTYTOKENS 0x0002
      73             : /** Flag for CSLTokenizeString2() to preserve quotes */
      74             : #define CSLT_PRESERVEQUOTES 0x0004
      75             : /** Flag for CSLTokenizeString2() to preserve escape characters */
      76             : #define CSLT_PRESERVEESCAPES 0x0008
      77             : /** Flag for CSLTokenizeString2() to strip leading spaces */
      78             : #define CSLT_STRIPLEADSPACES 0x0010
      79             : /** Flag for CSLTokenizeString2() to strip trailing spaces */
      80             : #define CSLT_STRIPENDSPACES 0x0020
      81             : 
      82             : int CPL_DLL CSLPrint(CSLConstList papszStrList, FILE *fpOut);
      83             : char CPL_DLL **CSLLoad(const char *pszFname) CPL_WARN_UNUSED_RESULT;
      84             : char CPL_DLL **CSLLoad2(const char *pszFname, int nMaxLines, int nMaxCols,
      85             :                         CSLConstList papszOptions) CPL_WARN_UNUSED_RESULT;
      86             : int CPL_DLL CSLSave(CSLConstList papszStrList, const char *pszFname);
      87             : 
      88             : char CPL_DLL **
      89             : CSLInsertStrings(char **papszStrList, int nInsertAtLineNo,
      90             :                  CSLConstList papszNewLines) CPL_WARN_UNUSED_RESULT;
      91             : char CPL_DLL **CSLInsertString(char **papszStrList, int nInsertAtLineNo,
      92             :                                const char *pszNewLine) CPL_WARN_UNUSED_RESULT;
      93             : char CPL_DLL **
      94             : CSLRemoveStrings(char **papszStrList, int nFirstLineToDelete, int nNumToRemove,
      95             :                  char ***ppapszRetStrings) CPL_WARN_UNUSED_RESULT;
      96             : int CPL_DLL CSLFindString(CSLConstList papszList, const char *pszTarget);
      97             : int CPL_DLL CSLFindStringCaseSensitive(CSLConstList papszList,
      98             :                                        const char *pszTarget);
      99             : int CPL_DLL CSLPartialFindString(CSLConstList papszHaystack,
     100             :                                  const char *pszNeedle);
     101             : int CPL_DLL CSLFindName(CSLConstList papszStrList, const char *pszName);
     102             : int CPL_DLL CSLFetchBoolean(CSLConstList papszStrList, const char *pszKey,
     103             :                             int bDefault);
     104             : 
     105             : /* TODO: Deprecate CSLTestBoolean.  Remove in GDAL 3.x. */
     106             : int CPL_DLL CSLTestBoolean(const char *pszValue);
     107             : /* Do not use CPLTestBoolean in C++ code.  Use CPLTestBool. */
     108             : int CPL_DLL CPLTestBoolean(const char *pszValue);
     109             : 
     110             : bool CPL_DLL CPLTestBool(const char *pszValue);
     111             : bool CPL_DLL CPLFetchBool(CSLConstList papszStrList, const char *pszKey,
     112             :                           bool bDefault);
     113             : #ifdef __cplusplus
     114             : CPL_C_END
     115             : 
     116             : /*! @cond Doxygen_Suppress */
     117           0 : inline bool CPLFetchBool(CSLConstList papszStrList, const char *pszKey,
     118             :                          int bDefault)
     119             : {
     120           0 :     return CPLFetchBool(papszStrList, pszKey, bDefault != 0);
     121             : }
     122             : 
     123             : bool CPLFetchBool(CSLConstList papszStrList, const char *pszKey,
     124             :                   const char *) = delete;
     125             : 
     126             : /*! @endcond */
     127             : CPL_C_START
     128             : #endif
     129             : CPLErr CPL_DLL CPLParseMemorySize(const char *pszValue, GIntBig *pnValue,
     130             :                                   bool *pbUnitSpecified);
     131             : 
     132             : const char CPL_DLL *CPLParseNameValue(const char *pszNameValue, char **ppszKey);
     133             : const char CPL_DLL *CPLParseNameValueSep(const char *pszNameValue,
     134             :                                          char **ppszKey, char chSep);
     135             : 
     136             : const char CPL_DLL *CSLFetchNameValue(CSLConstList papszStrList,
     137             :                                       const char *pszName);
     138             : const char CPL_DLL *CSLFetchNameValueDef(CSLConstList papszStrList,
     139             :                                          const char *pszName,
     140             :                                          const char *pszDefault);
     141             : char CPL_DLL **CSLFetchNameValueMultiple(CSLConstList papszStrList,
     142             :                                          const char *pszName);
     143             : char CPL_DLL **CSLAddNameValue(char **papszStrList, const char *pszName,
     144             :                                const char *pszValue) CPL_WARN_UNUSED_RESULT;
     145             : char CPL_DLL **CSLSetNameValue(char **papszStrList, const char *pszName,
     146             :                                const char *pszValue) CPL_WARN_UNUSED_RESULT;
     147             : void CPL_DLL CSLSetNameValueSeparator(char **papszStrList,
     148             :                                       const char *pszSeparator);
     149             : 
     150             : char CPL_DLL **CSLParseCommandLine(const char *pszCommandLine);
     151             : 
     152             : /** Scheme for CPLEscapeString()/CPLUnescapeString() for backlash quoting */
     153             : #define CPLES_BackslashQuotable 0
     154             : /** Scheme for CPLEscapeString()/CPLUnescapeString() for XML */
     155             : #define CPLES_XML 1
     156             : /** Scheme for CPLEscapeString()/CPLUnescapeString() for URL */
     157             : #define CPLES_URL 2
     158             : /** Scheme for CPLEscapeString()/CPLUnescapeString() for SQL */
     159             : #define CPLES_SQL 3
     160             : /** Scheme for CPLEscapeString()/CPLUnescapeString() for CSV */
     161             : #define CPLES_CSV 4
     162             : /** Scheme for CPLEscapeString()/CPLUnescapeString() for XML (preserves quotes)
     163             :  */
     164             : #define CPLES_XML_BUT_QUOTES 5
     165             : /** Scheme for CPLEscapeString()/CPLUnescapeString() for CSV (forced quoting) */
     166             : #define CPLES_CSV_FORCE_QUOTING 6
     167             : /** Scheme for CPLEscapeString()/CPLUnescapeString() for SQL identifiers */
     168             : #define CPLES_SQLI 7
     169             : 
     170             : char CPL_DLL *CPLEscapeString(const char *pszString, int nLength,
     171             :                               int nScheme) CPL_WARN_UNUSED_RESULT;
     172             : char CPL_DLL *CPLUnescapeString(const char *pszString, int *pnLength,
     173             :                                 int nScheme) CPL_WARN_UNUSED_RESULT;
     174             : 
     175             : char CPL_DLL *CPLBinaryToHex(int nBytes,
     176             :                              const GByte *pabyData) CPL_WARN_UNUSED_RESULT;
     177             : GByte CPL_DLL *CPLHexToBinary(const char *pszHex,
     178             :                               int *pnBytes) CPL_WARN_UNUSED_RESULT;
     179             : 
     180             : char CPL_DLL *CPLBase64Encode(int nBytes,
     181             :                               const GByte *pabyData) CPL_WARN_UNUSED_RESULT;
     182             : int CPL_DLL CPLBase64DecodeInPlace(GByte *pszBase64) CPL_WARN_UNUSED_RESULT;
     183             : 
     184             : /** Type of value */
     185             : typedef enum
     186             : {
     187             :     CPL_VALUE_STRING, /**< String */
     188             :     CPL_VALUE_REAL,   /**< Real number */
     189             :     CPL_VALUE_INTEGER /**< Integer */
     190             : } CPLValueType;
     191             : 
     192             : CPLValueType CPL_DLL CPLGetValueType(const char *pszValue);
     193             : 
     194             : int CPL_DLL CPLToupper(int c);
     195             : int CPL_DLL CPLTolower(int c);
     196             : 
     197             : size_t CPL_DLL CPLStrlcpy(char *pszDest, const char *pszSrc, size_t nDestSize);
     198             : size_t CPL_DLL CPLStrlcat(char *pszDest, const char *pszSrc, size_t nDestSize);
     199             : size_t CPL_DLL CPLStrnlen(const char *pszStr, size_t nMaxLen);
     200             : 
     201             : /* -------------------------------------------------------------------- */
     202             : /*      Locale independent formatting functions.                        */
     203             : /* -------------------------------------------------------------------- */
     204             : int CPL_DLL CPLvsnprintf(char *str, size_t size,
     205             :                          CPL_FORMAT_STRING(const char *fmt), va_list args)
     206             :     CPL_PRINT_FUNC_FORMAT(3, 0);
     207             : 
     208             : /* ALIAS_CPLSNPRINTF_AS_SNPRINTF might be defined to enable GCC 7 */
     209             : /* -Wformat-truncation= warnings, but shouldn't be set for normal use */
     210             : #if defined(ALIAS_CPLSNPRINTF_AS_SNPRINTF)
     211             : #define CPLsnprintf snprintf
     212             : #else
     213             : int CPL_DLL CPLsnprintf(char *str, size_t size,
     214             :                         CPL_FORMAT_STRING(const char *fmt), ...)
     215             :     CPL_PRINT_FUNC_FORMAT(3, 4);
     216             : #endif
     217             : 
     218             : /*! @cond Doxygen_Suppress */
     219             : #if defined(GDAL_COMPILATION) && !defined(DONT_DEPRECATE_SPRINTF)
     220             : int CPL_DLL CPLsprintf(char *str, CPL_FORMAT_STRING(const char *fmt), ...)
     221             :     CPL_PRINT_FUNC_FORMAT(2, 3) CPL_WARN_DEPRECATED("Use CPLsnprintf instead");
     222             : #else
     223             : int CPL_DLL CPLsprintf(char *str, CPL_FORMAT_STRING(const char *fmt), ...)
     224             :     CPL_PRINT_FUNC_FORMAT(2, 3);
     225             : #endif
     226             : /*! @endcond */
     227             : int CPL_DLL CPLprintf(CPL_FORMAT_STRING(const char *fmt), ...)
     228             :     CPL_PRINT_FUNC_FORMAT(1, 2);
     229             : 
     230             : /* For some reason Doxygen_Suppress is needed to avoid warning. Not sure why */
     231             : /*! @cond Doxygen_Suppress */
     232             : /* caution: only works with limited number of formats */
     233             : int CPL_DLL CPLsscanf(const char *str, CPL_SCANF_FORMAT_STRING(const char *fmt),
     234             :                       ...) CPL_SCAN_FUNC_FORMAT(2, 3);
     235             : /*! @endcond */
     236             : 
     237             : const char CPL_DLL *CPLSPrintf(CPL_FORMAT_STRING(const char *fmt), ...)
     238             :     CPL_PRINT_FUNC_FORMAT(1, 2) CPL_WARN_UNUSED_RESULT;
     239             : char CPL_DLL **CSLAppendPrintf(char **papszStrList,
     240             :                                CPL_FORMAT_STRING(const char *fmt), ...)
     241             :     CPL_PRINT_FUNC_FORMAT(2, 3) CPL_WARN_UNUSED_RESULT;
     242             : int CPL_DLL CPLVASPrintf(char **buf, CPL_FORMAT_STRING(const char *fmt),
     243             :                          va_list args) CPL_PRINT_FUNC_FORMAT(2, 0);
     244             : 
     245             : /* -------------------------------------------------------------------- */
     246             : /*      RFC 23 character set conversion/recoding API (cpl_recode.cpp).  */
     247             : /* -------------------------------------------------------------------- */
     248             : /** Encoding of the current locale */
     249             : #define CPL_ENC_LOCALE ""
     250             : /** UTF-8 encoding */
     251             : #define CPL_ENC_UTF8 "UTF-8"
     252             : /** UTF-16 encoding */
     253             : #define CPL_ENC_UTF16 "UTF-16"
     254             : /** UCS-2 encoding */
     255             : #define CPL_ENC_UCS2 "UCS-2"
     256             : /** UCS-4 encoding */
     257             : #define CPL_ENC_UCS4 "UCS-4"
     258             : /** ASCII encoding */
     259             : #define CPL_ENC_ASCII "ASCII"
     260             : /** ISO-8859-1 (LATIN1) encoding */
     261             : #define CPL_ENC_ISO8859_1 "ISO-8859-1"
     262             : 
     263             : int CPL_DLL CPLEncodingCharSize(const char *pszEncoding);
     264             : /*! @cond Doxygen_Suppress */
     265             : void CPL_DLL CPLClearRecodeWarningFlags(void);
     266             : /*! @endcond */
     267             : char CPL_DLL *CPLRecode(const char *pszSource, const char *pszSrcEncoding,
     268             :                         const char *pszDstEncoding)
     269             :     CPL_WARN_UNUSED_RESULT CPL_RETURNS_NONNULL;
     270             : char CPL_DLL *
     271             : CPLRecodeFromWChar(const wchar_t *pwszSource, const char *pszSrcEncoding,
     272             :                    const char *pszDstEncoding) CPL_WARN_UNUSED_RESULT;
     273             : wchar_t CPL_DLL *
     274             : CPLRecodeToWChar(const char *pszSource, const char *pszSrcEncoding,
     275             :                  const char *pszDstEncoding) CPL_WARN_UNUSED_RESULT;
     276             : int CPL_DLL CPLIsUTF8(const char *pabyData, int nLen);
     277             : bool CPL_DLL CPLIsASCII(const char *pabyData, size_t nLen);
     278             : char CPL_DLL *CPLForceToASCII(const char *pabyData, int nLen,
     279             :                               char chReplacementChar) CPL_WARN_UNUSED_RESULT;
     280             : char CPL_DLL *CPLUTF8ForceToASCII(const char *pszStr, char chReplacementChar)
     281             :     CPL_WARN_UNUSED_RESULT;
     282             : int CPL_DLL CPLStrlenUTF8(const char *pszUTF8Str)
     283             :     /*! @cond Doxygen_Suppress */
     284             :     CPL_WARN_DEPRECATED("Use CPLStrlenUTF8Ex() instead")
     285             :     /*! @endcond */
     286             :     ;
     287             : size_t CPL_DLL CPLStrlenUTF8Ex(const char *pszUTF8Str);
     288             : int CPL_DLL CPLCanRecode(const char *pszTestStr, const char *pszSrcEncoding,
     289             :                          const char *pszDstEncoding) CPL_WARN_UNUSED_RESULT;
     290             : CPL_C_END
     291             : 
     292             : #if defined(__cplusplus) && !defined(CPL_SUPRESS_CPLUSPLUS)
     293             : 
     294             : extern "C++"
     295             : {
     296             :     std::string CPL_DLL CPLRemoveSQLComments(const std::string &osInput);
     297             : }
     298             : 
     299             : #endif
     300             : 
     301             : /************************************************************************/
     302             : /*                              CPLString                               */
     303             : /************************************************************************/
     304             : 
     305             : #if defined(__cplusplus) && !defined(CPL_SUPRESS_CPLUSPLUS)
     306             : 
     307             : extern "C++"
     308             : {
     309             : #ifndef DOXYGEN_SKIP
     310             : #include <string>
     311             : #include <vector>
     312             : #if __cplusplus >= 201703L || (defined(_MSVC_LANG) && _MSVC_LANG >= 201703L)
     313             : #include <string_view>
     314             : #endif
     315             : #endif
     316             : 
     317             : // VC++ implicitly applies __declspec(dllexport) to template base classes
     318             : // of classes marked with __declspec(dllexport).
     319             : // Hence, if marked with CPL_DLL, VC++ would export symbols for the
     320             : // specialization of std::basic_string<char>, since it is a base class of
     321             : // CPLString. As a result, if an application linked both gdal.dll and a static
     322             : // library that (implicitly) instantiates std::string (almost all do!), then the
     323             : // linker would emit an error concerning duplicate symbols for std::string. The
     324             : // least intrusive solution is to not mark the whole class with
     325             : // __declspec(dllexport) for VC++, but only its non-inline methods.
     326             : #ifdef _MSC_VER
     327             : #define CPLSTRING_CLASS_DLL
     328             : #define CPLSTRING_METHOD_DLL CPL_DLL
     329             : #else
     330             : /*! @cond Doxygen_Suppress */
     331             : #define CPLSTRING_CLASS_DLL CPL_DLL
     332             : #define CPLSTRING_METHOD_DLL
     333             : /*! @endcond */
     334             : #endif
     335             : 
     336             :     //! Convenient string class based on std::string.
     337          20 :     class CPLSTRING_CLASS_DLL CPLString : public std::string
     338             :     {
     339             :       public:
     340             :         /** Constructor */
     341    18672888 :         CPLString(void)
     342    18672888 :         {
     343    18672568 :         }
     344             : 
     345             :         /** Constructor */
     346             :         // cppcheck-suppress noExplicitConstructor
     347     4895575 :         CPLString(const std::string &oStr) : std::string(oStr)
     348             :         {
     349     4895565 :         }
     350             : 
     351             :         /** Constructor */
     352             :         // cppcheck-suppress noExplicitConstructor
     353    10141010 :         CPLString(const char *pszStr) : std::string(pszStr)
     354             :         {
     355    10140790 :         }
     356             : 
     357             :         /** Constructor */
     358       71113 :         CPLString(const char *pszStr, size_t n) : std::string(pszStr, n)
     359             :         {
     360       71113 :         }
     361             : 
     362             :         /** Return string as zero terminated character array */
     363    25054650 :         operator const char *(void) const
     364             :         {
     365    25054650 :             return c_str();
     366             :         }
     367             : 
     368             :         /** Return character at specified index */
     369    56843804 :         char &operator[](std::string::size_type i)
     370             :         {
     371    56843804 :             return std::string::operator[](i);
     372             :         }
     373             : 
     374             :         /** Return character at specified index */
     375      285456 :         const char &operator[](std::string::size_type i) const
     376             :         {
     377      285456 :             return std::string::operator[](i);
     378             :         }
     379             : 
     380             :         /** Return character at specified index */
     381     2943568 :         char &operator[](int i)
     382             :         {
     383             :             return std::string::operator[](
     384     2943568 :                 static_cast<std::string::size_type>(i));
     385             :         }
     386             : 
     387             :         /** Return character at specified index */
     388       16703 :         const char &operator[](int i) const
     389             :         {
     390             :             return std::string::operator[](
     391       16703 :                 static_cast<std::string::size_type>(i));
     392             :         }
     393             : 
     394             :         /** Clear the string */
     395       24398 :         void Clear()
     396             :         {
     397       24398 :             resize(0);
     398       24398 :         }
     399             : 
     400             :         /** Assign specified string and take ownership of it (assumed to be
     401             :          * allocated with CPLMalloc()). NULL can be safely passed to clear the
     402             :          * string. */
     403           0 :         void Seize(char *pszValue)
     404             :         {
     405           0 :             if (pszValue == nullptr)
     406           0 :                 Clear();
     407             :             else
     408             :             {
     409           0 :                 *this = pszValue;
     410           0 :                 CPLFree(pszValue);
     411             :             }
     412           0 :         }
     413             : 
     414             :         /* There seems to be a bug in the way the compiler count indices...
     415             :          * Should be CPL_PRINT_FUNC_FORMAT (1, 2) */
     416             :         CPLSTRING_METHOD_DLL CPLString &
     417             :         Printf(CPL_FORMAT_STRING(const char *pszFormat), ...)
     418             :             CPL_PRINT_FUNC_FORMAT(2, 3);
     419             :         CPLSTRING_METHOD_DLL CPLString &
     420             :         vPrintf(CPL_FORMAT_STRING(const char *pszFormat), va_list args)
     421             :             CPL_PRINT_FUNC_FORMAT(2, 0);
     422             :         CPLSTRING_METHOD_DLL CPLString &
     423             :         FormatC(double dfValue, const char *pszFormat = nullptr);
     424             :         CPLSTRING_METHOD_DLL CPLString &Trim();
     425             :         CPLSTRING_METHOD_DLL CPLString &Recode(const char *pszSrcEncoding,
     426             :                                                const char *pszDstEncoding);
     427             :         CPLSTRING_METHOD_DLL CPLString &replaceAll(const std::string &osBefore,
     428             :                                                    const std::string &osAfter);
     429             :         CPLSTRING_METHOD_DLL CPLString &replaceAll(const std::string &osBefore,
     430             :                                                    char chAfter);
     431             :         CPLSTRING_METHOD_DLL CPLString &replaceAll(char chBefore,
     432             :                                                    const std::string &osAfter);
     433             :         CPLSTRING_METHOD_DLL CPLString &replaceAll(char chBefore, char chAfter);
     434             : 
     435             :         /* case insensitive find alternates */
     436             :         CPLSTRING_METHOD_DLL size_t ifind(const std::string &str,
     437             :                                           size_t pos = 0) const;
     438             :         CPLSTRING_METHOD_DLL size_t ifind(const char *s, size_t pos = 0) const;
     439             :         CPLSTRING_METHOD_DLL CPLString &toupper(void);
     440             :         CPLSTRING_METHOD_DLL CPLString &tolower(void);
     441             : 
     442             :         CPLSTRING_METHOD_DLL bool endsWith(const std::string &osStr) const;
     443             : 
     444             :         CPLSTRING_METHOD_DLL CPLString URLEncode() const;
     445             : 
     446             :         CPLSTRING_METHOD_DLL CPLString SQLQuotedIdentifier() const;
     447             : 
     448             :         CPLSTRING_METHOD_DLL CPLString SQLQuotedLiteral() const;
     449             : 
     450             :       private:
     451             :         operator void *(void) = delete;
     452             :     };
     453             : 
     454             : #undef CPLSTRING_CLASS_DLL
     455             : #undef CPLSTRING_METHOD_DLL
     456             : 
     457             :     CPLString CPL_DLL CPLOPrintf(CPL_FORMAT_STRING(const char *pszFormat), ...)
     458             :         CPL_PRINT_FUNC_FORMAT(1, 2);
     459             :     CPLString CPL_DLL CPLOvPrintf(CPL_FORMAT_STRING(const char *pszFormat),
     460             :                                   va_list args) CPL_PRINT_FUNC_FORMAT(1, 0);
     461             :     CPLString CPL_DLL CPLQuotedSQLIdentifier(const char *pszIdent);
     462             : 
     463             :     /* -------------------------------------------------------------------- */
     464             :     /*      URL processing functions, here since they depend on CPLString.  */
     465             :     /* -------------------------------------------------------------------- */
     466             :     CPLString CPL_DLL CPLURLGetValue(const char *pszURL, const char *pszKey);
     467             :     CPLString CPL_DLL CPLURLAddKVP(const char *pszURL, const char *pszKey,
     468             :                                    const char *pszValue);
     469             : 
     470             :     /************************************************************************/
     471             :     /*                            CPLStringList                             */
     472             :     /************************************************************************/
     473             : 
     474             :     //! String list class designed around our use of C "char**" string lists.
     475    12975800 :     class CPL_DLL CPLStringList
     476             :     {
     477             :         char **papszList = nullptr;
     478             :         mutable int nCount = 0;
     479             :         mutable int nAllocation = 0;
     480             :         bool bOwnList = false;
     481             :         bool bIsSorted = false;
     482             : 
     483             :         bool MakeOurOwnCopy();
     484             :         bool EnsureAllocation(int nMaxLength);
     485             :         int FindSortedInsertionPoint(const char *pszLine);
     486             : 
     487             :       public:
     488             :         CPLStringList();
     489             :         explicit CPLStringList(char **papszList, int bTakeOwnership = TRUE);
     490             :         explicit CPLStringList(CSLConstList papszList);
     491             :         explicit CPLStringList(const std::vector<std::string> &aosList);
     492             :         explicit CPLStringList(std::initializer_list<const char *> oInitList);
     493             :         CPLStringList(const CPLStringList &oOther);
     494             :         CPLStringList(CPLStringList &&oOther);
     495             :         ~CPLStringList();
     496             : 
     497             :         static const CPLStringList BoundToConstList(CSLConstList papszList);
     498             : 
     499             :         CPLStringList &Clear();
     500             : 
     501             :         /** Clear the list */
     502           2 :         inline void clear()
     503             :         {
     504           2 :             Clear();
     505           2 :         }
     506             : 
     507             :         /** Return size of list */
     508     1613889 :         int size() const
     509             :         {
     510     1613889 :             return Count();
     511             :         }
     512             : 
     513             :         int Count() const;
     514             : 
     515             :         /** Return whether the list is empty. */
     516       52622 :         bool empty() const
     517             :         {
     518       52622 :             return Count() == 0;
     519             :         }
     520             : 
     521             :         CPLStringList &AddString(const char *pszNewString);
     522             :         CPLStringList &AddString(const std::string &newString);
     523             :         CPLStringList &AddStringDirectly(char *pszNewString);
     524             : 
     525             :         /** Add a string to the list */
     526        3557 :         void push_back(const char *pszNewString)
     527             :         {
     528        3557 :             AddString(pszNewString);
     529        3557 :         }
     530             : 
     531             :         /** Add a string to the list */
     532        1670 :         void push_back(const std::string &osStr)
     533             :         {
     534        1670 :             AddString(osStr.c_str());
     535        1670 :         }
     536             : 
     537             : #if defined(DOXYGEN_SKIP) || __cplusplus >= 201703L ||                         \
     538             :     (defined(_MSVC_LANG) && _MSVC_LANG >= 201703L)
     539             :         void push_back(std::string_view svStr);
     540             : #endif
     541             : 
     542         393 :         CPLStringList &InsertString(int nInsertAtLineNo, const char *pszNewLine)
     543             :         {
     544         393 :             return InsertStringDirectly(nInsertAtLineNo, CPLStrdup(pszNewLine));
     545             :         }
     546             : 
     547             :         CPLStringList &InsertStringDirectly(int nInsertAtLineNo,
     548             :                                             char *pszNewLine);
     549             : 
     550             :         // CPLStringList &InsertStrings( int nInsertAtLineNo, char
     551             :         // **papszNewLines );
     552             : 
     553             :         CPLStringList &RemoveStrings(int nFirstLineToDelete,
     554             :                                      int nNumToRemove = 1);
     555             : 
     556             :         /** Return index of pszTarget in the list, or -1 */
     557       15961 :         int FindString(const char *pszTarget) const
     558             :         {
     559       15961 :             return CSLFindString(papszList, pszTarget);
     560             :         }
     561             : 
     562             :         /** Return index of pszTarget in the list (using partial search), or -1
     563             :          */
     564          33 :         int PartialFindString(const char *pszNeedle) const
     565             :         {
     566          33 :             return CSLPartialFindString(papszList, pszNeedle);
     567             :         }
     568             : 
     569             :         int FindName(const char *pszName) const;
     570             :         bool FetchBool(const char *pszKey, bool bDefault) const;
     571             :         // Deprecated.
     572             :         int FetchBoolean(const char *pszKey, int bDefault) const;
     573             :         const char *FetchNameValue(const char *pszKey) const;
     574             :         const char *FetchNameValueDef(const char *pszKey,
     575             :                                       const char *pszDefault) const;
     576             :         CPLStringList &AddNameValue(const char *pszKey, const char *pszValue);
     577             :         CPLStringList &SetNameValue(const char *pszKey, const char *pszValue);
     578             : 
     579             :         CPLStringList &SetString(int pos, const char *pszString);
     580             :         CPLStringList &SetString(int pos, const std::string &osString);
     581             :         CPLStringList &SetStringDirectly(int pos, char *pszString);
     582             : 
     583             :         CPLStringList &Assign(char **papszListIn, int bTakeOwnership = TRUE);
     584             : 
     585             :         /** Assignment operator */
     586      337834 :         CPLStringList &operator=(char **papszListIn)
     587             :         {
     588      337834 :             return Assign(papszListIn, TRUE);
     589             :         }
     590             : 
     591             :         /** Assignment operator */
     592             :         CPLStringList &operator=(const CPLStringList &oOther);
     593             :         /** Assignment operator */
     594             :         CPLStringList &operator=(CSLConstList papszListIn);
     595             :         /** Move assignment operator */
     596             :         CPLStringList &operator=(CPLStringList &&oOther);
     597             : 
     598             :         /** Return string at specified index */
     599             :         char *operator[](int i);
     600             : 
     601             :         /** Return string at specified index */
     602        2029 :         char *operator[](size_t i)
     603             :         {
     604        2029 :             return (*this)[static_cast<int>(i)];
     605             :         }
     606             : 
     607             :         /** Return string at specified index */
     608             :         const char *operator[](int i) const;
     609             : 
     610             :         /** Return string at specified index */
     611        1964 :         const char *operator[](size_t i) const
     612             :         {
     613        1964 :             return (*this)[static_cast<int>(i)];
     614             :         }
     615             : 
     616             :         /** Return value corresponding to pszKey, or nullptr */
     617        4511 :         const char *operator[](const char *pszKey) const
     618             :         {
     619        4511 :             return FetchNameValue(pszKey);
     620             :         }
     621             : 
     622             :         /** Return first element */
     623             :         inline const char *front() const
     624             :         {
     625             :             return papszList[0];
     626             :         }
     627             : 
     628             :         /** Return last element */
     629      705302 :         inline const char *back() const
     630             :         {
     631      705302 :             return papszList[size() - 1];
     632             :         }
     633             : 
     634             :         /** begin() implementation */
     635       15895 :         const char *const *begin() const
     636             :         {
     637       15895 :             return papszList ? &papszList[0] : nullptr;
     638             :         }
     639             : 
     640             :         /** end() implementation */
     641       15895 :         const char *const *end() const
     642             :         {
     643       15895 :             return papszList ? &papszList[size()] : nullptr;
     644             :         }
     645             : 
     646             :         /** Return list. Ownership remains to the object */
     647     3258960 :         char **List()
     648             :         {
     649     3258960 :             return papszList;
     650             :         }
     651             : 
     652             :         /** Return list. Ownership remains to the object */
     653     2262528 :         CSLConstList List() const
     654             :         {
     655     2262528 :             return papszList;
     656             :         }
     657             : 
     658             :         char **StealList();
     659             : 
     660             :         CPLStringList &Sort();
     661             : 
     662             :         /** Returns whether the list is sorted */
     663    24019780 :         int IsSorted() const
     664             :         {
     665    24019780 :             return bIsSorted;
     666             :         }
     667             : 
     668             :         /** Return lists */
     669       68430 :         operator char **(void)
     670             :         {
     671       68430 :             return List();
     672             :         }
     673             : 
     674             :         /** Return lists */
     675        2999 :         operator CSLConstList(void) const
     676             :         {
     677        2999 :             return List();
     678             :         }
     679             : 
     680             :         /** Return the list as a vector of strings */
     681        1853 :         operator std::vector<std::string>(void) const
     682             :         {
     683        1853 :             return std::vector<std::string>{begin(), end()};
     684             :         }
     685             : 
     686             :       private:
     687             :         operator void *(void) = delete;
     688             :     };
     689             : 
     690             : #ifdef GDAL_COMPILATION
     691             : 
     692             : #include <iterator>  // For std::input_iterator_tag
     693             : #include <memory>
     694             : #include <string_view>
     695             : #include <utility>  // For std::pair
     696             : 
     697             :     /*! @cond Doxygen_Suppress */
     698             :     struct CPL_DLL CSLDestroyReleaser
     699             :     {
     700             :         void operator()(char **papszStr) const
     701             :         {
     702             :             CSLDestroy(papszStr);
     703             :         }
     704             :     };
     705             : 
     706             :     /*! @endcond */
     707             : 
     708             :     /** Unique pointer type to use with CSL functions returning a char** */
     709             :     using CSLUniquePtr = std::unique_ptr<char *, CSLDestroyReleaser>;
     710             : 
     711             :     /** Unique pointer type to use with functions returning a char* to release
     712             :      * with VSIFree */
     713             :     using CPLCharUniquePtr = std::unique_ptr<char, VSIFreeReleaser>;
     714             : 
     715             :     namespace cpl
     716             :     {
     717             : 
     718             :     /*! @cond Doxygen_Suppress */
     719             : 
     720             :     /** Equivalent of C++20 std::string::starts_with(const char*) */
     721             :     template <class StringType>
     722      345239 :     inline bool starts_with(const StringType &str, const char *prefix)
     723             :     {
     724      345239 :         const size_t prefixLen = strlen(prefix);
     725      658522 :         return str.size() >= prefixLen &&
     726      658507 :                str.compare(0, prefixLen, prefix, prefixLen) == 0;
     727             :     }
     728             : 
     729             :     /** Equivalent of C++20 std::string::starts_with(const std::string &) */
     730             :     template <class StringType>
     731       43414 :     inline bool starts_with(const StringType &str, const std::string &prefix)
     732             :     {
     733       69834 :         return str.size() >= prefix.size() &&
     734       69862 :                str.compare(0, prefix.size(), prefix) == 0;
     735             :     }
     736             : 
     737             :     /** Equivalent of C++20 std::string::starts_with(std::string_view) */
     738             :     template <class StringType>
     739        1628 :     inline bool starts_with(const StringType &str, std::string_view prefix)
     740             :     {
     741        3256 :         return str.size() >= prefix.size() &&
     742        3256 :                str.compare(0, prefix.size(), prefix) == 0;
     743             :     }
     744             : 
     745             :     /** Equivalent of C++20 std::string::ends_with(const char*) */
     746             :     template <class StringType>
     747      246898 :     inline bool ends_with(const StringType &str, const char *suffix)
     748             :     {
     749      246898 :         const size_t suffixLen = strlen(suffix);
     750      486423 :         return str.size() >= suffixLen &&
     751      239525 :                str.compare(str.size() - suffixLen, suffixLen, suffix,
     752      486423 :                            suffixLen) == 0;
     753             :     }
     754             : 
     755             :     /** Equivalent of C++20 std::string::ends_with(const std::string &) */
     756             :     template <class StringType>
     757          12 :     inline bool ends_with(const StringType &str, const std::string &suffix)
     758             :     {
     759          24 :         return str.size() >= suffix.size() &&
     760          12 :                str.compare(str.size() - suffix.size(), suffix.size(), suffix) ==
     761          12 :                    0;
     762             :     }
     763             : 
     764             :     /** Equivalent of C++20 std::string::ends_with(std::string_view) */
     765             :     template <class StringType>
     766             :     inline bool ends_with(const StringType &str, std::string_view suffix)
     767             :     {
     768             :         return str.size() >= suffix.size() &&
     769             :                str.compare(str.size() - suffix.size(), suffix.size(), suffix) ==
     770             :                    0;
     771             :     }
     772             : 
     773             :     /** Iterator for a CSLConstList */
     774             :     struct CPL_DLL CSLIterator
     775             :     {
     776             :         using iterator_category = std::input_iterator_tag;
     777             :         using difference_type = std::ptrdiff_t;
     778             :         using value_type = const char *;
     779             :         using pointer = value_type *;
     780             :         using reference = value_type &;
     781             : 
     782             :         CSLConstList m_papszList = nullptr;
     783             :         bool m_bAtEnd = false;
     784             : 
     785    18078791 :         inline const char *operator*() const
     786             :         {
     787    18078791 :             return *m_papszList;
     788             :         }
     789             : 
     790    18078473 :         inline CSLIterator &operator++()
     791             :         {
     792    18078473 :             if (m_papszList)
     793    18078473 :                 ++m_papszList;
     794    18078473 :             return *this;
     795             :         }
     796             : 
     797             :         bool operator==(const CSLIterator &other) const;
     798             : 
     799    22062430 :         inline bool operator!=(const CSLIterator &other) const
     800             :         {
     801    22062430 :             return !(operator==(other));
     802             :         }
     803             :     };
     804             : 
     805             :     /*! @endcond */
     806             : 
     807             :     /** Wrapper for a CSLConstList that can be used with C++ iterators.
     808             :      *
     809             :      * @since GDAL 3.9
     810             :      */
     811             :     struct CPL_DLL CSLIteratorWrapper
     812             :     {
     813             :       public:
     814             :         /** Constructor */
     815     3983998 :         inline explicit CSLIteratorWrapper(CSLConstList papszList)
     816     3983998 :             : m_papszList(papszList)
     817             :         {
     818     3983998 :         }
     819             : 
     820             :         /** Get the begin of the list */
     821     3983998 :         inline CSLIterator begin() const
     822             :         {
     823     3983998 :             return {m_papszList, false};
     824             :         }
     825             : 
     826             :         /** Get the end of the list */
     827     3983998 :         inline CSLIterator end() const
     828             :         {
     829     3983998 :             return {m_papszList, true};
     830             :         }
     831             : 
     832             :       private:
     833             :         CSLConstList m_papszList;
     834             :     };
     835             : 
     836             :     /** Wraps a CSLConstList in a structure that can be used with C++ iterators.
     837             :      *
     838             :      * @since GDAL 3.9
     839             :      */
     840     3984006 :     inline CSLIteratorWrapper Iterate(CSLConstList papszList)
     841             :     {
     842     3984006 :         return CSLIteratorWrapper{papszList};
     843             :     }
     844             : 
     845             :     /*! @cond Doxygen_Suppress */
     846        2467 :     inline CSLIteratorWrapper Iterate(const CPLStringList &aosList)
     847             :     {
     848        2467 :         return Iterate(aosList.List());
     849             :     }
     850             : 
     851             :     /*! @endcond */
     852             : 
     853             :     /*! @cond Doxygen_Suppress */
     854             :     inline CSLIteratorWrapper Iterate(char **) = delete;
     855             : 
     856             :     /*! @endcond */
     857             : 
     858             :     /*! @cond Doxygen_Suppress */
     859             :     /** Iterator for a CSLConstList as (name, value) pairs. */
     860             :     struct CPL_DLL CSLNameValueIterator
     861             :     {
     862             :         using iterator_category = std::input_iterator_tag;
     863             :         using difference_type = std::ptrdiff_t;
     864             :         using value_type = std::pair<const char *, const char *>;
     865             :         using pointer = value_type *;
     866             :         using reference = value_type &;
     867             : 
     868             :         CSLConstList m_papszList = nullptr;
     869             :         bool m_bReturnNullKeyIfNotNameValue = false;
     870             :         std::string m_osKey{};
     871             : 
     872             :         value_type operator*();
     873             : 
     874        7372 :         inline CSLNameValueIterator &operator++()
     875             :         {
     876        7372 :             if (m_papszList)
     877        7372 :                 ++m_papszList;
     878        7372 :             return *this;
     879             :         }
     880             : 
     881       20676 :         inline bool operator==(const CSLNameValueIterator &other) const
     882             :         {
     883       20676 :             return m_papszList == other.m_papszList;
     884             :         }
     885             : 
     886       20674 :         inline bool operator!=(const CSLNameValueIterator &other) const
     887             :         {
     888       20674 :             return !(operator==(other));
     889             :         }
     890             :     };
     891             : 
     892             :     /*! @endcond */
     893             : 
     894             :     /** Wrapper for a CSLConstList that can be used with C++ iterators
     895             :      * to get (name, value) pairs.
     896             :      *
     897             :      * This can for example be used to do the following:
     898             :      * for (const auto& [name, value]: cpl::IterateNameValue(papszList)) {}
     899             :      *
     900             :      * Note that a (name, value) pair returned by dereferencing an iterator
     901             :      * is invalidated by the next iteration on the iterator.
     902             :      *
     903             :      * @since GDAL 3.9
     904             :      */
     905             :     struct CPL_DLL CSLNameValueIteratorWrapper
     906             :     {
     907             :       public:
     908             :         /** Constructor */
     909       13304 :         inline explicit CSLNameValueIteratorWrapper(
     910             :             CSLConstList papszList, bool bReturnNullKeyIfNotNameValue)
     911       13304 :             : m_papszList(papszList),
     912       13304 :               m_bReturnNullKeyIfNotNameValue(bReturnNullKeyIfNotNameValue)
     913             :         {
     914       13304 :         }
     915             : 
     916             :         /** Get the begin of the list */
     917       13304 :         inline CSLNameValueIterator begin() const
     918             :         {
     919       13304 :             return {m_papszList, m_bReturnNullKeyIfNotNameValue};
     920             :         }
     921             : 
     922             :         /** Get the end of the list */
     923             :         CSLNameValueIterator end() const;
     924             : 
     925             :       private:
     926             :         CSLConstList m_papszList;
     927             :         const bool m_bReturnNullKeyIfNotNameValue;
     928             :     };
     929             : 
     930             :     /** Wraps a CSLConstList in a structure that can be used with C++ iterators
     931             :      * to get (name, value) pairs.
     932             :      *
     933             :      * This can for example be used to do the following:
     934             :      * for (const auto& [name, value]: cpl::IterateNameValue(papszList)) {}
     935             :      *
     936             :      * Note that a (name, value) pair returned by dereferencing an iterator
     937             :      * is invalidated by the next iteration on the iterator.
     938             :      *
     939             :      * @param papszList List to iterate over.
     940             :      * @param bReturnNullKeyIfNotNameValue When this is set to true, if a string
     941             :      * contained in the list if not of the form name=value, then the value of
     942             :      * the iterator will be (nullptr, string).
     943             :      *
     944             :      * @since GDAL 3.9
     945             :      */
     946             :     inline CSLNameValueIteratorWrapper
     947       13304 :     IterateNameValue(CSLConstList papszList,
     948             :                      bool bReturnNullKeyIfNotNameValue = false)
     949             :     {
     950       13304 :         return CSLNameValueIteratorWrapper{papszList,
     951       13304 :                                            bReturnNullKeyIfNotNameValue};
     952             :     }
     953             : 
     954             :     /*! @cond Doxygen_Suppress */
     955             :     inline CSLNameValueIteratorWrapper
     956        7317 :     IterateNameValue(const CPLStringList &aosList,
     957             :                      bool bReturnNullKeyIfNotNameValue = false)
     958             :     {
     959        7317 :         return IterateNameValue(aosList.List(), bReturnNullKeyIfNotNameValue);
     960             :     }
     961             : 
     962             :     /*! @endcond */
     963             : 
     964             :     /*! @cond Doxygen_Suppress */
     965             :     inline CSLIteratorWrapper IterateNameValue(char **, bool = false) = delete;
     966             : 
     967             :     /*! @endcond */
     968             : 
     969             :     /** Converts a CSLConstList to a std::vector<std::string> */
     970          94 :     inline std::vector<std::string> ToVector(CSLConstList papszList)
     971             :     {
     972         188 :         return CPLStringList::BoundToConstList(papszList);
     973             :     }
     974             : 
     975             :     inline std::vector<std::string> ToVector(char **) = delete;
     976             : 
     977             :     }  // namespace cpl
     978             : 
     979             : #endif
     980             : 
     981             : }  // extern "C++"
     982             : 
     983             : #endif /* def __cplusplus && !CPL_SUPRESS_CPLUSPLUS */
     984             : 
     985             : #endif /* CPL_STRING_H_INCLUDED */

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