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: 2026-06-20 20:44:25 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 delimited by double quotes */
      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             : /** Flag for CSLTokenizeString2() to honour strings delimited by single quotes (GDAL >= 3.14) */
      82             : #define CSLT_HONOURSINGLEQUOTES 0x0040
      83             : 
      84             : int CPL_DLL CSLPrint(CSLConstList papszStrList, FILE *fpOut);
      85             : char CPL_DLL **CSLLoad(const char *pszFname) CPL_WARN_UNUSED_RESULT;
      86             : char CPL_DLL **CSLLoad2(const char *pszFname, int nMaxLines, int nMaxCols,
      87             :                         CSLConstList papszOptions) CPL_WARN_UNUSED_RESULT;
      88             : int CPL_DLL CSLSave(CSLConstList papszStrList, const char *pszFname);
      89             : 
      90             : char CPL_DLL **
      91             : CSLInsertStrings(char **papszStrList, int nInsertAtLineNo,
      92             :                  CSLConstList papszNewLines) CPL_WARN_UNUSED_RESULT;
      93             : char CPL_DLL **CSLInsertString(char **papszStrList, int nInsertAtLineNo,
      94             :                                const char *pszNewLine) CPL_WARN_UNUSED_RESULT;
      95             : char CPL_DLL **
      96             : CSLRemoveStrings(char **papszStrList, int nFirstLineToDelete, int nNumToRemove,
      97             :                  char ***ppapszRetStrings) CPL_WARN_UNUSED_RESULT;
      98             : int CPL_DLL CSLFindString(CSLConstList papszList, const char *pszTarget);
      99             : int CPL_DLL CSLFindStringCaseSensitive(CSLConstList papszList,
     100             :                                        const char *pszTarget);
     101             : int CPL_DLL CSLPartialFindString(CSLConstList papszHaystack,
     102             :                                  const char *pszNeedle);
     103             : int CPL_DLL CSLFindName(CSLConstList papszStrList, const char *pszName);
     104             : int CPL_DLL CSLFetchBoolean(CSLConstList papszStrList, const char *pszKey,
     105             :                             int bDefault);
     106             : 
     107             : /* TODO: Deprecate CSLTestBoolean.  Remove in GDAL 3.x. */
     108             : int CPL_DLL CSLTestBoolean(const char *pszValue);
     109             : /* Do not use CPLTestBoolean in C++ code.  Use CPLTestBool. */
     110             : int CPL_DLL CPLTestBoolean(const char *pszValue);
     111             : 
     112             : bool CPL_DLL CPLTestBool(const char *pszValue);
     113             : bool CPL_DLL CPLFetchBool(CSLConstList papszStrList, const char *pszKey,
     114             :                           bool bDefault);
     115             : #ifdef __cplusplus
     116             : CPL_C_END
     117             : 
     118             : /*! @cond Doxygen_Suppress */
     119           0 : inline bool CPLFetchBool(CSLConstList papszStrList, const char *pszKey,
     120             :                          int bDefault)
     121             : {
     122           0 :     return CPLFetchBool(papszStrList, pszKey, bDefault != 0);
     123             : }
     124             : 
     125             : bool CPLFetchBool(CSLConstList papszStrList, const char *pszKey,
     126             :                   const char *) = delete;
     127             : 
     128             : /*! @endcond */
     129             : CPL_C_START
     130             : #endif
     131             : CPLErr CPL_DLL CPLParseMemorySize(const char *pszValue, GIntBig *pnValue,
     132             :                                   bool *pbUnitSpecified);
     133             : 
     134             : const char CPL_DLL *CPLParseNameValue(const char *pszNameValue, char **ppszKey);
     135             : const char CPL_DLL *CPLParseNameValueSep(const char *pszNameValue,
     136             :                                          char **ppszKey, char chSep);
     137             : 
     138             : const char CPL_DLL *CSLFetchNameValue(CSLConstList papszStrList,
     139             :                                       const char *pszName);
     140             : const char CPL_DLL *CSLFetchNameValueDef(CSLConstList papszStrList,
     141             :                                          const char *pszName,
     142             :                                          const char *pszDefault);
     143             : char CPL_DLL **CSLFetchNameValueMultiple(CSLConstList papszStrList,
     144             :                                          const char *pszName);
     145             : char CPL_DLL **CSLAddNameValue(char **papszStrList, const char *pszName,
     146             :                                const char *pszValue) CPL_WARN_UNUSED_RESULT;
     147             : char CPL_DLL **CSLSetNameValue(char **papszStrList, const char *pszName,
     148             :                                const char *pszValue) CPL_WARN_UNUSED_RESULT;
     149             : void CPL_DLL CSLSetNameValueSeparator(char **papszStrList,
     150             :                                       const char *pszSeparator);
     151             : 
     152             : char CPL_DLL **CSLParseCommandLine(const char *pszCommandLine);
     153             : 
     154             : /** Scheme for CPLEscapeString()/CPLUnescapeString() for backlash quoting */
     155             : #define CPLES_BackslashQuotable 0
     156             : /** Scheme for CPLEscapeString()/CPLUnescapeString() for XML */
     157             : #define CPLES_XML 1
     158             : /** Scheme for CPLEscapeString()/CPLUnescapeString() for URL */
     159             : #define CPLES_URL 2
     160             : /** Scheme for CPLEscapeString()/CPLUnescapeString() for SQL */
     161             : #define CPLES_SQL 3
     162             : /** Scheme for CPLEscapeString()/CPLUnescapeString() for CSV */
     163             : #define CPLES_CSV 4
     164             : /** Scheme for CPLEscapeString()/CPLUnescapeString() for XML (preserves quotes)
     165             :  */
     166             : #define CPLES_XML_BUT_QUOTES 5
     167             : /** Scheme for CPLEscapeString()/CPLUnescapeString() for CSV (forced quoting) */
     168             : #define CPLES_CSV_FORCE_QUOTING 6
     169             : /** Scheme for CPLEscapeString()/CPLUnescapeString() for SQL identifiers */
     170             : #define CPLES_SQLI 7
     171             : 
     172             : char CPL_DLL *CPLEscapeString(const char *pszString, int nLength,
     173             :                               int nScheme) CPL_WARN_UNUSED_RESULT;
     174             : char CPL_DLL *CPLUnescapeString(const char *pszString, int *pnLength,
     175             :                                 int nScheme) CPL_WARN_UNUSED_RESULT;
     176             : 
     177             : char CPL_DLL *CPLBinaryToHex(int nBytes,
     178             :                              const GByte *pabyData) CPL_WARN_UNUSED_RESULT;
     179             : GByte CPL_DLL *CPLHexToBinary(const char *pszHex,
     180             :                               int *pnBytes) CPL_WARN_UNUSED_RESULT;
     181             : 
     182             : char CPL_DLL *CPLBase64Encode(int nBytes,
     183             :                               const GByte *pabyData) CPL_WARN_UNUSED_RESULT;
     184             : int CPL_DLL CPLBase64DecodeInPlace(GByte *pszBase64) CPL_WARN_UNUSED_RESULT;
     185             : 
     186             : /** Type of value */
     187             : typedef enum
     188             : {
     189             :     CPL_VALUE_STRING, /**< String */
     190             :     CPL_VALUE_REAL,   /**< Real number */
     191             :     CPL_VALUE_INTEGER /**< Integer */
     192             : } CPLValueType;
     193             : 
     194             : CPLValueType CPL_DLL CPLGetValueType(const char *pszValue);
     195             : 
     196             : int CPL_DLL CPLToupper(int c);
     197             : int CPL_DLL CPLTolower(int c);
     198             : 
     199             : size_t CPL_DLL CPLStrlcpy(char *pszDest, const char *pszSrc, size_t nDestSize);
     200             : size_t CPL_DLL CPLStrlcat(char *pszDest, const char *pszSrc, size_t nDestSize);
     201             : size_t CPL_DLL CPLStrnlen(const char *pszStr, size_t nMaxLen);
     202             : 
     203             : /* -------------------------------------------------------------------- */
     204             : /*      Locale independent formatting functions.                        */
     205             : /* -------------------------------------------------------------------- */
     206             : int CPL_DLL CPLvsnprintf(char *str, size_t size,
     207             :                          CPL_FORMAT_STRING(const char *fmt), va_list args)
     208             :     CPL_PRINT_FUNC_FORMAT(3, 0);
     209             : 
     210             : /* ALIAS_CPLSNPRINTF_AS_SNPRINTF might be defined to enable GCC 7 */
     211             : /* -Wformat-truncation= warnings, but shouldn't be set for normal use */
     212             : #if defined(ALIAS_CPLSNPRINTF_AS_SNPRINTF)
     213             : #define CPLsnprintf snprintf
     214             : #else
     215             : int CPL_DLL CPLsnprintf(char *str, size_t size,
     216             :                         CPL_FORMAT_STRING(const char *fmt), ...)
     217             :     CPL_PRINT_FUNC_FORMAT(3, 4);
     218             : #endif
     219             : 
     220             : /*! @cond Doxygen_Suppress */
     221             : #if defined(GDAL_COMPILATION) && !defined(DONT_DEPRECATE_SPRINTF)
     222             : int CPL_DLL CPLsprintf(char *str, CPL_FORMAT_STRING(const char *fmt), ...)
     223             :     CPL_PRINT_FUNC_FORMAT(2, 3) CPL_WARN_DEPRECATED("Use CPLsnprintf instead");
     224             : #else
     225             : int CPL_DLL CPLsprintf(char *str, CPL_FORMAT_STRING(const char *fmt), ...)
     226             :     CPL_PRINT_FUNC_FORMAT(2, 3);
     227             : #endif
     228             : /*! @endcond */
     229             : int CPL_DLL CPLprintf(CPL_FORMAT_STRING(const char *fmt), ...)
     230             :     CPL_PRINT_FUNC_FORMAT(1, 2);
     231             : 
     232             : /* For some reason Doxygen_Suppress is needed to avoid warning. Not sure why */
     233             : /*! @cond Doxygen_Suppress */
     234             : /* caution: only works with limited number of formats */
     235             : int CPL_DLL CPLsscanf(const char *str, CPL_SCANF_FORMAT_STRING(const char *fmt),
     236             :                       ...) CPL_SCAN_FUNC_FORMAT(2, 3);
     237             : /*! @endcond */
     238             : 
     239             : const char CPL_DLL *CPLSPrintf(CPL_FORMAT_STRING(const char *fmt), ...)
     240             :     CPL_PRINT_FUNC_FORMAT(1, 2) CPL_WARN_UNUSED_RESULT;
     241             : char CPL_DLL **CSLAppendPrintf(char **papszStrList,
     242             :                                CPL_FORMAT_STRING(const char *fmt), ...)
     243             :     CPL_PRINT_FUNC_FORMAT(2, 3) CPL_WARN_UNUSED_RESULT;
     244             : int CPL_DLL CPLVASPrintf(char **buf, CPL_FORMAT_STRING(const char *fmt),
     245             :                          va_list args) CPL_PRINT_FUNC_FORMAT(2, 0);
     246             : 
     247             : /* -------------------------------------------------------------------- */
     248             : /*      RFC 23 character set conversion/recoding API (cpl_recode.cpp).  */
     249             : /* -------------------------------------------------------------------- */
     250             : /** Encoding of the current locale */
     251             : #define CPL_ENC_LOCALE ""
     252             : /** UTF-8 encoding */
     253             : #define CPL_ENC_UTF8 "UTF-8"
     254             : /** UTF-16 encoding */
     255             : #define CPL_ENC_UTF16 "UTF-16"
     256             : /** UCS-2 encoding */
     257             : #define CPL_ENC_UCS2 "UCS-2"
     258             : /** UCS-4 encoding */
     259             : #define CPL_ENC_UCS4 "UCS-4"
     260             : /** ASCII encoding */
     261             : #define CPL_ENC_ASCII "ASCII"
     262             : /** ISO-8859-1 (LATIN1) encoding */
     263             : #define CPL_ENC_ISO8859_1 "ISO-8859-1"
     264             : 
     265             : int CPL_DLL CPLEncodingCharSize(const char *pszEncoding);
     266             : /*! @cond Doxygen_Suppress */
     267             : void CPL_DLL CPLClearRecodeWarningFlags(void);
     268             : /*! @endcond */
     269             : char CPL_DLL *CPLRecode(const char *pszSource, const char *pszSrcEncoding,
     270             :                         const char *pszDstEncoding)
     271             :     CPL_WARN_UNUSED_RESULT CPL_RETURNS_NONNULL;
     272             : char CPL_DLL *
     273             : CPLRecodeFromWChar(const wchar_t *pwszSource, const char *pszSrcEncoding,
     274             :                    const char *pszDstEncoding) CPL_WARN_UNUSED_RESULT;
     275             : wchar_t CPL_DLL *
     276             : CPLRecodeToWChar(const char *pszSource, const char *pszSrcEncoding,
     277             :                  const char *pszDstEncoding) CPL_WARN_UNUSED_RESULT;
     278             : int CPL_DLL CPLIsUTF8(const char *pabyData, int nLen);
     279             : bool CPL_DLL CPLIsASCII(const char *pabyData, size_t nLen);
     280             : char CPL_DLL *CPLForceToASCII(const char *pabyData, int nLen,
     281             :                               char chReplacementChar) CPL_WARN_UNUSED_RESULT;
     282             : char CPL_DLL *CPLUTF8ForceToASCII(const char *pszStr, char chReplacementChar)
     283             :     CPL_WARN_UNUSED_RESULT;
     284             : int CPL_DLL CPLStrlenUTF8(const char *pszUTF8Str)
     285             :     /*! @cond Doxygen_Suppress */
     286             :     CPL_WARN_DEPRECATED("Use CPLStrlenUTF8Ex() instead")
     287             :     /*! @endcond */
     288             :     ;
     289             : size_t CPL_DLL CPLStrlenUTF8Ex(const char *pszUTF8Str);
     290             : int CPL_DLL CPLCanRecode(const char *pszTestStr, const char *pszSrcEncoding,
     291             :                          const char *pszDstEncoding) CPL_WARN_UNUSED_RESULT;
     292             : CPL_C_END
     293             : 
     294             : #if defined(__cplusplus) && !defined(CPL_SUPRESS_CPLUSPLUS)
     295             : 
     296             : extern "C++"
     297             : {
     298             :     std::string CPL_DLL CPLRemoveSQLComments(const std::string &osInput);
     299             : }
     300             : 
     301             : #endif
     302             : 
     303             : /************************************************************************/
     304             : /*                              CPLString                               */
     305             : /************************************************************************/
     306             : 
     307             : #if defined(__cplusplus) && !defined(CPL_SUPRESS_CPLUSPLUS)
     308             : 
     309             : extern "C++"
     310             : {
     311             : #ifndef DOXYGEN_SKIP
     312             : #include <string>
     313             : #include <vector>
     314             : #if __cplusplus >= 201703L || (defined(_MSVC_LANG) && _MSVC_LANG >= 201703L)
     315             : #include <string_view>
     316             : #endif
     317             : #endif
     318             : 
     319             : // VC++ implicitly applies __declspec(dllexport) to template base classes
     320             : // of classes marked with __declspec(dllexport).
     321             : // Hence, if marked with CPL_DLL, VC++ would export symbols for the
     322             : // specialization of std::basic_string<char>, since it is a base class of
     323             : // CPLString. As a result, if an application linked both gdal.dll and a static
     324             : // library that (implicitly) instantiates std::string (almost all do!), then the
     325             : // linker would emit an error concerning duplicate symbols for std::string. The
     326             : // least intrusive solution is to not mark the whole class with
     327             : // __declspec(dllexport) for VC++, but only its non-inline methods.
     328             : #ifdef _MSC_VER
     329             : #define CPLSTRING_CLASS_DLL
     330             : #define CPLSTRING_METHOD_DLL CPL_DLL
     331             : #else
     332             : /*! @cond Doxygen_Suppress */
     333             : #define CPLSTRING_CLASS_DLL CPL_DLL
     334             : #define CPLSTRING_METHOD_DLL
     335             : /*! @endcond */
     336             : #endif
     337             : 
     338             :     //! Convenient string class based on std::string.
     339          28 :     class CPLSTRING_CLASS_DLL CPLString : public std::string
     340             :     {
     341             :       public:
     342             :         /** Constructor */
     343    19164306 :         CPLString(void)
     344    19164306 :         {
     345    19164178 :         }
     346             : 
     347             :         /** Constructor */
     348             :         // cppcheck-suppress noExplicitConstructor
     349     5151046 :         CPLString(const std::string &oStr) : std::string(oStr)
     350             :         {
     351     5151046 :         }
     352             : 
     353             :         /** Constructor */
     354             :         // cppcheck-suppress noExplicitConstructor
     355    10465226 :         CPLString(const char *pszStr) : std::string(pszStr)
     356             :         {
     357    10465266 :         }
     358             : 
     359             :         /** Constructor */
     360       71890 :         CPLString(const char *pszStr, size_t n) : std::string(pszStr, n)
     361             :         {
     362       71890 :         }
     363             : 
     364             :         /** Return string as zero terminated character array */
     365    25691084 :         operator const char *(void) const
     366             :         {
     367    25691084 :             return c_str();
     368             :         }
     369             : 
     370             :         /** Return character at specified index */
     371    61797832 :         char &operator[](std::string::size_type i)
     372             :         {
     373    61797832 :             return std::string::operator[](i);
     374             :         }
     375             : 
     376             :         /** Return character at specified index */
     377      285964 :         const char &operator[](std::string::size_type i) const
     378             :         {
     379      285964 :             return std::string::operator[](i);
     380             :         }
     381             : 
     382             :         /** Return character at specified index */
     383     2944525 :         char &operator[](int i)
     384             :         {
     385             :             return std::string::operator[](
     386     2944525 :                 static_cast<std::string::size_type>(i));
     387             :         }
     388             : 
     389             :         /** Return character at specified index */
     390       16913 :         const char &operator[](int i) const
     391             :         {
     392             :             return std::string::operator[](
     393       16913 :                 static_cast<std::string::size_type>(i));
     394             :         }
     395             : 
     396             :         /** Clear the string */
     397       24398 :         void Clear()
     398             :         {
     399       24398 :             resize(0);
     400       24398 :         }
     401             : 
     402             :         /** Assign specified string and take ownership of it (assumed to be
     403             :          * allocated with CPLMalloc()). NULL can be safely passed to clear the
     404             :          * string. */
     405           0 :         void Seize(char *pszValue)
     406             :         {
     407           0 :             if (pszValue == nullptr)
     408           0 :                 Clear();
     409             :             else
     410             :             {
     411           0 :                 *this = pszValue;
     412           0 :                 CPLFree(pszValue);
     413             :             }
     414           0 :         }
     415             : 
     416             :         /* There seems to be a bug in the way the compiler count indices...
     417             :          * Should be CPL_PRINT_FUNC_FORMAT (1, 2) */
     418             :         CPLSTRING_METHOD_DLL CPLString &
     419             :         Printf(CPL_FORMAT_STRING(const char *pszFormat), ...)
     420             :             CPL_PRINT_FUNC_FORMAT(2, 3);
     421             :         CPLSTRING_METHOD_DLL CPLString &
     422             :         vPrintf(CPL_FORMAT_STRING(const char *pszFormat), va_list args)
     423             :             CPL_PRINT_FUNC_FORMAT(2, 0);
     424             :         CPLSTRING_METHOD_DLL CPLString &
     425             :         FormatC(double dfValue, const char *pszFormat = nullptr);
     426             :         CPLSTRING_METHOD_DLL CPLString &Trim();
     427             :         CPLSTRING_METHOD_DLL CPLString &Recode(const char *pszSrcEncoding,
     428             :                                                const char *pszDstEncoding);
     429             :         CPLSTRING_METHOD_DLL CPLString &replaceAll(const std::string &osBefore,
     430             :                                                    const std::string &osAfter);
     431             :         CPLSTRING_METHOD_DLL CPLString &replaceAll(const std::string &osBefore,
     432             :                                                    char chAfter);
     433             :         CPLSTRING_METHOD_DLL CPLString &replaceAll(char chBefore,
     434             :                                                    const std::string &osAfter);
     435             :         CPLSTRING_METHOD_DLL CPLString &replaceAll(char chBefore, char chAfter);
     436             : 
     437             :         /* case insensitive find alternates */
     438             :         CPLSTRING_METHOD_DLL size_t ifind(const std::string &str,
     439             :                                           size_t pos = 0) const;
     440             :         CPLSTRING_METHOD_DLL size_t ifind(const char *s, size_t pos = 0) const;
     441             :         CPLSTRING_METHOD_DLL CPLString &toupper(void);
     442             :         CPLSTRING_METHOD_DLL CPLString &tolower(void);
     443             : 
     444             :         CPLSTRING_METHOD_DLL bool endsWith(const std::string &osStr) const;
     445             : 
     446             :         CPLSTRING_METHOD_DLL CPLString URLEncode() const;
     447             : 
     448             :         CPLSTRING_METHOD_DLL CPLString SQLQuotedIdentifier() const;
     449             : 
     450             :         CPLSTRING_METHOD_DLL CPLString SQLQuotedLiteral() const;
     451             : 
     452             :       private:
     453             :         operator void *(void) = delete;
     454             :     };
     455             : 
     456             : #undef CPLSTRING_CLASS_DLL
     457             : #undef CPLSTRING_METHOD_DLL
     458             : 
     459             :     CPLString CPL_DLL CPLOPrintf(CPL_FORMAT_STRING(const char *pszFormat), ...)
     460             :         CPL_PRINT_FUNC_FORMAT(1, 2);
     461             :     CPLString CPL_DLL CPLOvPrintf(CPL_FORMAT_STRING(const char *pszFormat),
     462             :                                   va_list args) CPL_PRINT_FUNC_FORMAT(1, 0);
     463             :     CPLString CPL_DLL CPLQuotedSQLIdentifier(const char *pszIdent);
     464             : 
     465             :     /* -------------------------------------------------------------------- */
     466             :     /*      URL processing functions, here since they depend on CPLString.  */
     467             :     /* -------------------------------------------------------------------- */
     468             :     CPLString CPL_DLL CPLURLGetValue(const char *pszURL, const char *pszKey);
     469             :     CPLString CPL_DLL CPLURLAddKVP(const char *pszURL, const char *pszKey,
     470             :                                    const char *pszValue);
     471             : 
     472             :     /************************************************************************/
     473             :     /*                            CPLStringList                             */
     474             :     /************************************************************************/
     475             : 
     476             :     //! String list class designed around our use of C "char**" string lists.
     477    13405400 :     class CPL_DLL CPLStringList
     478             :     {
     479             :         char **papszList = nullptr;
     480             :         mutable int nCount = 0;
     481             :         mutable int nAllocation = 0;
     482             :         bool bOwnList = false;
     483             :         bool bIsSorted = false;
     484             : 
     485             :         bool MakeOurOwnCopy();
     486             :         bool EnsureAllocation(int nMaxLength);
     487             :         int FindSortedInsertionPoint(const char *pszLine);
     488             : 
     489             :       public:
     490             :         CPLStringList();
     491             :         explicit CPLStringList(char **papszList, int bTakeOwnership = TRUE);
     492             :         explicit CPLStringList(CSLConstList papszList);
     493             :         explicit CPLStringList(const std::vector<std::string> &aosList);
     494             :         explicit CPLStringList(std::initializer_list<const char *> oInitList);
     495             :         CPLStringList(const CPLStringList &oOther);
     496             :         CPLStringList(CPLStringList &&oOther);
     497             :         ~CPLStringList();
     498             : 
     499             :         static const CPLStringList BoundToConstList(CSLConstList papszList);
     500             : 
     501             :         CPLStringList &Clear();
     502             : 
     503             :         /** Clear the list */
     504           2 :         inline void clear()
     505             :         {
     506           2 :             Clear();
     507           2 :         }
     508             : 
     509             :         /** Return size of list */
     510     1801103 :         int size() const
     511             :         {
     512     1801103 :             return Count();
     513             :         }
     514             : 
     515             :         int Count() const;
     516             : 
     517             :         /** Return whether the list is empty. */
     518       56481 :         bool empty() const
     519             :         {
     520       56481 :             return Count() == 0;
     521             :         }
     522             : 
     523             :         CPLStringList &AddString(const char *pszNewString);
     524             :         CPLStringList &AddString(const std::string &newString);
     525             :         CPLStringList &AddStringDirectly(char *pszNewString);
     526             : 
     527             :         /** Add a string to the list */
     528        5437 :         void push_back(const char *pszNewString)
     529             :         {
     530        5437 :             AddString(pszNewString);
     531        5437 :         }
     532             : 
     533             :         /** Add a string to the list */
     534        1731 :         void push_back(const std::string &osStr)
     535             :         {
     536        1731 :             AddString(osStr.c_str());
     537        1731 :         }
     538             : 
     539             : #if defined(DOXYGEN_SKIP) || __cplusplus >= 201703L ||                         \
     540             :     (defined(_MSVC_LANG) && _MSVC_LANG >= 201703L)
     541             :         void push_back(std::string_view svStr);
     542             : #endif
     543             : 
     544         396 :         CPLStringList &InsertString(int nInsertAtLineNo, const char *pszNewLine)
     545             :         {
     546         396 :             return InsertStringDirectly(nInsertAtLineNo, CPLStrdup(pszNewLine));
     547             :         }
     548             : 
     549             :         CPLStringList &InsertStringDirectly(int nInsertAtLineNo,
     550             :                                             char *pszNewLine);
     551             : 
     552             :         // CPLStringList &InsertStrings( int nInsertAtLineNo, char
     553             :         // **papszNewLines );
     554             : 
     555             :         CPLStringList &RemoveStrings(int nFirstLineToDelete,
     556             :                                      int nNumToRemove = 1);
     557             : 
     558             :         /** Return index of pszTarget in the list, or -1 */
     559       17933 :         int FindString(const char *pszTarget) const
     560             :         {
     561       17933 :             return CSLFindString(papszList, pszTarget);
     562             :         }
     563             : 
     564             :         /** Return index of pszTarget in the list (using partial search), or -1
     565             :          */
     566          33 :         int PartialFindString(const char *pszNeedle) const
     567             :         {
     568          33 :             return CSLPartialFindString(papszList, pszNeedle);
     569             :         }
     570             : 
     571             :         int FindName(const char *pszName) const;
     572             :         bool FetchBool(const char *pszKey, bool bDefault) const;
     573             :         // Deprecated.
     574             :         int FetchBoolean(const char *pszKey, int bDefault) const;
     575             :         const char *FetchNameValue(const char *pszKey) const;
     576             :         const char *FetchNameValueDef(const char *pszKey,
     577             :                                       const char *pszDefault) const;
     578             :         CPLStringList &AddNameValue(const char *pszKey, const char *pszValue);
     579             :         CPLStringList &SetNameValue(const char *pszKey, const char *pszValue);
     580             : 
     581             :         CPLStringList &SetString(int pos, const char *pszString);
     582             :         CPLStringList &SetString(int pos, const std::string &osString);
     583             :         CPLStringList &SetStringDirectly(int pos, char *pszString);
     584             : 
     585             :         CPLStringList &Assign(char **papszListIn, int bTakeOwnership = TRUE);
     586             : 
     587             :         /** Assignment operator */
     588      338204 :         CPLStringList &operator=(char **papszListIn)
     589             :         {
     590      338204 :             return Assign(papszListIn, TRUE);
     591             :         }
     592             : 
     593             :         /** Assignment operator */
     594             :         CPLStringList &operator=(const CPLStringList &oOther);
     595             :         /** Assignment operator */
     596             :         CPLStringList &operator=(CSLConstList papszListIn);
     597             :         /** Move assignment operator */
     598             :         CPLStringList &operator=(CPLStringList &&oOther);
     599             : 
     600             :         /** Return string at specified index */
     601             :         char *operator[](int i);
     602             : 
     603             :         /** Return string at specified index */
     604        2149 :         char *operator[](size_t i)
     605             :         {
     606        2149 :             return (*this)[static_cast<int>(i)];
     607             :         }
     608             : 
     609             :         /** Return string at specified index */
     610             :         const char *operator[](int i) const;
     611             : 
     612             :         /** Return string at specified index */
     613        1972 :         const char *operator[](size_t i) const
     614             :         {
     615        1972 :             return (*this)[static_cast<int>(i)];
     616             :         }
     617             : 
     618             :         /** Return value corresponding to pszKey, or nullptr */
     619        4493 :         const char *operator[](const char *pszKey) const
     620             :         {
     621        4493 :             return FetchNameValue(pszKey);
     622             :         }
     623             : 
     624             :         /** Return first element */
     625             :         inline const char *front() const
     626             :         {
     627             :             return papszList[0];
     628             :         }
     629             : 
     630             :         /** Return last element */
     631      754399 :         inline const char *back() const
     632             :         {
     633      754399 :             return papszList[size() - 1];
     634             :         }
     635             : 
     636             :         /** begin() implementation */
     637       18190 :         const char *const *begin() const
     638             :         {
     639       18190 :             return papszList ? &papszList[0] : nullptr;
     640             :         }
     641             : 
     642             :         /** end() implementation */
     643       18190 :         const char *const *end() const
     644             :         {
     645       18190 :             return papszList ? &papszList[size()] : nullptr;
     646             :         }
     647             : 
     648             :         /** Return list. Ownership remains to the object */
     649     3378633 :         char **List()
     650             :         {
     651     3378633 :             return papszList;
     652             :         }
     653             : 
     654             :         /** Return list. Ownership remains to the object */
     655     2501562 :         CSLConstList List() const
     656             :         {
     657     2501562 :             return papszList;
     658             :         }
     659             : 
     660             :         char **StealList();
     661             : 
     662             :         CPLStringList &Sort();
     663             : 
     664             :         /** Returns whether the list is sorted */
     665    23889323 :         int IsSorted() const
     666             :         {
     667    23889323 :             return bIsSorted;
     668             :         }
     669             : 
     670             :         /** Return lists */
     671       69031 :         operator char **(void)
     672             :         {
     673       69031 :             return List();
     674             :         }
     675             : 
     676             :         /** Return lists */
     677        3037 :         operator CSLConstList(void) const
     678             :         {
     679        3037 :             return List();
     680             :         }
     681             : 
     682             :         /** Return the list as a vector of strings */
     683        2254 :         operator std::vector<std::string>(void) const
     684             :         {
     685        2254 :             return std::vector<std::string>{begin(), end()};
     686             :         }
     687             : 
     688             :       private:
     689             :         operator void *(void) = delete;
     690             :     };
     691             : 
     692             : #ifdef GDAL_COMPILATION
     693             : 
     694             : #include <iterator>  // For std::input_iterator_tag
     695             : #include <memory>
     696             : #include <string_view>
     697             : #include <utility>  // For std::pair
     698             : 
     699             :     /*! @cond Doxygen_Suppress */
     700             :     struct CPL_DLL CSLDestroyReleaser
     701             :     {
     702             :         void operator()(char **papszStr) const
     703             :         {
     704             :             CSLDestroy(papszStr);
     705             :         }
     706             :     };
     707             : 
     708             :     /*! @endcond */
     709             : 
     710             :     /** Unique pointer type to use with CSL functions returning a char** */
     711             :     using CSLUniquePtr = std::unique_ptr<char *, CSLDestroyReleaser>;
     712             : 
     713             :     /** Unique pointer type to use with functions returning a char* to release
     714             :      * with VSIFree */
     715             :     using CPLCharUniquePtr = std::unique_ptr<char, VSIFreeReleaser>;
     716             : 
     717             :     namespace cpl
     718             :     {
     719             : 
     720             :     /*! @cond Doxygen_Suppress */
     721             : 
     722             :     /** Equivalent of C++20 std::string::starts_with(const char*) */
     723             :     template <class StringType>
     724      360867 :     inline bool starts_with(const StringType &str, const char *prefix)
     725             :     {
     726      360867 :         const size_t prefixLen = strlen(prefix);
     727      689847 :         return str.size() >= prefixLen &&
     728      689847 :                str.compare(0, prefixLen, prefix, prefixLen) == 0;
     729             :     }
     730             : 
     731             :     /** Equivalent of C++20 std::string::starts_with(const std::string &) */
     732             :     template <class StringType>
     733       44779 :     inline bool starts_with(const StringType &str, const std::string &prefix)
     734             :     {
     735       72302 :         return str.size() >= prefix.size() &&
     736       72316 :                str.compare(0, prefix.size(), prefix) == 0;
     737             :     }
     738             : 
     739             :     /** Equivalent of C++20 std::string::starts_with(std::string_view) */
     740             :     template <class StringType>
     741        1645 :     inline bool starts_with(const StringType &str, std::string_view prefix)
     742             :     {
     743        3290 :         return str.size() >= prefix.size() &&
     744        3290 :                str.compare(0, prefix.size(), prefix) == 0;
     745             :     }
     746             : 
     747             :     /** Equivalent of C++20 std::string::ends_with(const char*) */
     748             :     template <class StringType>
     749      253887 :     inline bool ends_with(const StringType &str, const char *suffix)
     750             :     {
     751      253887 :         const size_t suffixLen = strlen(suffix);
     752      503385 :         return str.size() >= suffixLen &&
     753      249498 :                str.compare(str.size() - suffixLen, suffixLen, suffix,
     754      503385 :                            suffixLen) == 0;
     755             :     }
     756             : 
     757             :     /** Equivalent of C++20 std::string::ends_with(const std::string &) */
     758             :     template <class StringType>
     759         515 :     inline bool ends_with(const StringType &str, const std::string &suffix)
     760             :     {
     761         767 :         return str.size() >= suffix.size() &&
     762         252 :                str.compare(str.size() - suffix.size(), suffix.size(), suffix) ==
     763         515 :                    0;
     764             :     }
     765             : 
     766             :     /** Equivalent of C++20 std::string::ends_with(std::string_view) */
     767             :     template <class StringType>
     768             :     inline bool ends_with(const StringType &str, std::string_view suffix)
     769             :     {
     770             :         return str.size() >= suffix.size() &&
     771             :                str.compare(str.size() - suffix.size(), suffix.size(), suffix) ==
     772             :                    0;
     773             :     }
     774             : 
     775             :     /** Iterator for a CSLConstList */
     776             :     struct CPL_DLL CSLIterator
     777             :     {
     778             :         using iterator_category = std::input_iterator_tag;
     779             :         using difference_type = std::ptrdiff_t;
     780             :         using value_type = const char *;
     781             :         using pointer = value_type *;
     782             :         using reference = value_type &;
     783             : 
     784             :         CSLConstList m_papszList = nullptr;
     785             :         bool m_bAtEnd = false;
     786             : 
     787    18908032 :         inline const char *operator*() const
     788             :         {
     789    18908032 :             return *m_papszList;
     790             :         }
     791             : 
     792    18907814 :         inline CSLIterator &operator++()
     793             :         {
     794    18907814 :             if (m_papszList)
     795    18907814 :                 ++m_papszList;
     796    18907814 :             return *this;
     797             :         }
     798             : 
     799             :         bool operator==(const CSLIterator &other) const;
     800             : 
     801    22916351 :         inline bool operator!=(const CSLIterator &other) const
     802             :         {
     803    22916351 :             return !(operator==(other));
     804             :         }
     805             :     };
     806             : 
     807             :     /*! @endcond */
     808             : 
     809             :     /** Wrapper for a CSLConstList that can be used with C++ iterators.
     810             :      *
     811             :      * @since GDAL 3.9
     812             :      */
     813             :     struct CPL_DLL CSLIteratorWrapper
     814             :     {
     815             :       public:
     816             :         /** Constructor */
     817     4008558 :         inline explicit CSLIteratorWrapper(CSLConstList papszList)
     818     4008558 :             : m_papszList(papszList)
     819             :         {
     820     4008558 :         }
     821             : 
     822             :         /** Get the begin of the list */
     823     4008558 :         inline CSLIterator begin() const
     824             :         {
     825     4008558 :             return {m_papszList, false};
     826             :         }
     827             : 
     828             :         /** Get the end of the list */
     829     4008558 :         inline CSLIterator end() const
     830             :         {
     831     4008558 :             return {m_papszList, true};
     832             :         }
     833             : 
     834             :       private:
     835             :         CSLConstList m_papszList;
     836             :     };
     837             : 
     838             :     /** Wraps a CSLConstList in a structure that can be used with C++ iterators.
     839             :      *
     840             :      * @since GDAL 3.9
     841             :      */
     842     4008558 :     inline CSLIteratorWrapper Iterate(CSLConstList papszList)
     843             :     {
     844     4008558 :         return CSLIteratorWrapper{papszList};
     845             :     }
     846             : 
     847             :     /*! @cond Doxygen_Suppress */
     848       15992 :     inline CSLIteratorWrapper Iterate(const CPLStringList &aosList)
     849             :     {
     850       15992 :         return Iterate(aosList.List());
     851             :     }
     852             : 
     853             :     /*! @endcond */
     854             : 
     855             :     /*! @cond Doxygen_Suppress */
     856             :     inline CSLIteratorWrapper Iterate(char **) = delete;
     857             : 
     858             :     /*! @endcond */
     859             : 
     860             :     /*! @cond Doxygen_Suppress */
     861             :     /** Iterator for a CSLConstList as (name, value) pairs. */
     862             :     struct CPL_DLL CSLNameValueIterator
     863             :     {
     864             :         using iterator_category = std::input_iterator_tag;
     865             :         using difference_type = std::ptrdiff_t;
     866             :         using value_type = std::pair<const char *, const char *>;
     867             :         using pointer = value_type *;
     868             :         using reference = value_type &;
     869             : 
     870             :         CSLConstList m_papszList = nullptr;
     871             :         bool m_bReturnNullKeyIfNotNameValue = false;
     872             :         std::string m_osKey{};
     873             : 
     874             :         value_type operator*();
     875             : 
     876        8307 :         inline CSLNameValueIterator &operator++()
     877             :         {
     878        8307 :             if (m_papszList)
     879        8307 :                 ++m_papszList;
     880        8307 :             return *this;
     881             :         }
     882             : 
     883       21885 :         inline bool operator==(const CSLNameValueIterator &other) const
     884             :         {
     885       21885 :             return m_papszList == other.m_papszList;
     886             :         }
     887             : 
     888       21883 :         inline bool operator!=(const CSLNameValueIterator &other) const
     889             :         {
     890       21883 :             return !(operator==(other));
     891             :         }
     892             :     };
     893             : 
     894             :     /*! @endcond */
     895             : 
     896             :     /** Wrapper for a CSLConstList that can be used with C++ iterators
     897             :      * to get (name, value) pairs.
     898             :      *
     899             :      * This can for example be used to do the following:
     900             :      * for (const auto& [name, value]: cpl::IterateNameValue(papszList)) {}
     901             :      *
     902             :      * Note that a (name, value) pair returned by dereferencing an iterator
     903             :      * is invalidated by the next iteration on the iterator.
     904             :      *
     905             :      * @since GDAL 3.9
     906             :      */
     907             :     struct CPL_DLL CSLNameValueIteratorWrapper
     908             :     {
     909             :       public:
     910             :         /** Constructor */
     911       13578 :         inline explicit CSLNameValueIteratorWrapper(
     912             :             CSLConstList papszList, bool bReturnNullKeyIfNotNameValue)
     913       13578 :             : m_papszList(papszList),
     914       13578 :               m_bReturnNullKeyIfNotNameValue(bReturnNullKeyIfNotNameValue)
     915             :         {
     916       13578 :         }
     917             : 
     918             :         /** Get the begin of the list */
     919       13578 :         inline CSLNameValueIterator begin() const
     920             :         {
     921       13578 :             return {m_papszList, m_bReturnNullKeyIfNotNameValue};
     922             :         }
     923             : 
     924             :         /** Get the end of the list */
     925             :         CSLNameValueIterator end() const;
     926             : 
     927             :       private:
     928             :         CSLConstList m_papszList;
     929             :         const bool m_bReturnNullKeyIfNotNameValue;
     930             :     };
     931             : 
     932             :     /** Wraps a CSLConstList in a structure that can be used with C++ iterators
     933             :      * to get (name, value) pairs.
     934             :      *
     935             :      * This can for example be used to do the following:
     936             :      * for (const auto& [name, value]: cpl::IterateNameValue(papszList)) {}
     937             :      *
     938             :      * Note that a (name, value) pair returned by dereferencing an iterator
     939             :      * is invalidated by the next iteration on the iterator.
     940             :      *
     941             :      * @param papszList List to iterate over.
     942             :      * @param bReturnNullKeyIfNotNameValue When this is set to true, if a string
     943             :      * contained in the list if not of the form name=value, then the value of
     944             :      * the iterator will be (nullptr, string).
     945             :      *
     946             :      * @since GDAL 3.9
     947             :      */
     948             :     inline CSLNameValueIteratorWrapper
     949       13578 :     IterateNameValue(CSLConstList papszList,
     950             :                      bool bReturnNullKeyIfNotNameValue = false)
     951             :     {
     952       13578 :         return CSLNameValueIteratorWrapper{papszList,
     953       13578 :                                            bReturnNullKeyIfNotNameValue};
     954             :     }
     955             : 
     956             :     /*! @cond Doxygen_Suppress */
     957             :     inline CSLNameValueIteratorWrapper
     958        7872 :     IterateNameValue(const CPLStringList &aosList,
     959             :                      bool bReturnNullKeyIfNotNameValue = false)
     960             :     {
     961        7872 :         return IterateNameValue(aosList.List(), bReturnNullKeyIfNotNameValue);
     962             :     }
     963             : 
     964             :     /*! @endcond */
     965             : 
     966             :     /*! @cond Doxygen_Suppress */
     967             :     inline CSLIteratorWrapper IterateNameValue(char **, bool = false) = delete;
     968             : 
     969             :     /*! @endcond */
     970             : 
     971             :     /** Converts a CSLConstList to a std::vector<std::string> */
     972          98 :     inline std::vector<std::string> ToVector(CSLConstList papszList)
     973             :     {
     974         196 :         return CPLStringList::BoundToConstList(papszList);
     975             :     }
     976             : 
     977             :     inline std::vector<std::string> ToVector(char **) = delete;
     978             : 
     979             :     }  // namespace cpl
     980             : 
     981             : #endif
     982             : 
     983             : }  // extern "C++"
     984             : 
     985             : #endif /* def __cplusplus && !CPL_SUPRESS_CPLUSPLUS */
     986             : 
     987             : #endif /* CPL_STRING_H_INCLUDED */

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