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Diffstat (limited to 'include/SString.h')
-rw-r--r-- | include/SString.h | 289 |
1 files changed, 0 insertions, 289 deletions
diff --git a/include/SString.h b/include/SString.h deleted file mode 100644 index b770afebe..000000000 --- a/include/SString.h +++ /dev/null @@ -1,289 +0,0 @@ -// SciTE - Scintilla based Text Editor -/** @file SString.h - ** A simple string class. - **/ -// Copyright 1998-2004 by Neil Hodgson <neilh@scintilla.org> -// The License.txt file describes the conditions under which this software may be distributed. - -#ifndef SSTRING_H -#define SSTRING_H - - -// These functions are implemented because each platform calls them something different. -int CompareCaseInsensitive(const char *a, const char *b); -int CompareNCaseInsensitive(const char *a, const char *b, size_t len); -bool EqualCaseInsensitive(const char *a, const char *b); - -#ifdef SCI_NAMESPACE -namespace Scintilla { -#endif - -// Define another string class. -// While it would be 'better' to use std::string, that doubles the executable size. -// An SString may contain embedded nul characters. - -/** - * Base class from which the two other classes (SBuffer & SString) - * are derived. - */ -class SContainer { -public: - /** Type of string lengths (sizes) and positions (indexes). */ - typedef size_t lenpos_t; - /** Out of bounds value indicating that the string argument should be measured. */ - enum { measure_length=0xffffffffU}; - -protected: - char *s; ///< The C string - lenpos_t sSize; ///< The size of the buffer, less 1: ie. the maximum size of the string - - SContainer() : s(0), sSize(0) {} - ~SContainer() { - delete []s; // Suppose it was allocated using StringAllocate - s = 0; - sSize = 0; - } - /** Size of buffer. */ - lenpos_t size() const { - if (s) { - return sSize; - } else { - return 0; - } - } -public: - /** - * Allocate uninitialized memory big enough to fit a string of the given length. - * @return the pointer to the new string - */ - static char *StringAllocate(lenpos_t len); - /** - * Duplicate a buffer/C string. - * Allocate memory of the given size, or big enough to fit the string if length isn't given; - * then copy the given string in the allocated memory. - * @return the pointer to the new string - */ - static char *StringAllocate( - const char *s, ///< The string to duplicate - lenpos_t len=measure_length); ///< The length of memory to allocate. Optional. -}; - - -/** - * @brief A string buffer class. - * - * Main use is to ask an API the length of a string it can provide, - * then to allocate a buffer of the given size, and to provide this buffer - * to the API to put the string. - * This class is intended to be shortlived, to be transformed as SString - * as soon as it holds the string, so it has little members. - * Note: we assume the buffer is filled by the API. If the length can be shorter, - * we should set sLen to strlen(sb.ptr()) in related SString constructor and assignment. - */ -class SBuffer : protected SContainer { -public: - SBuffer(lenpos_t len) { - s = StringAllocate(len); - if (s) { - *s = '\0'; - sSize = len; - } else { - sSize = 0; - } - } -private: - /// Copy constructor - // Here only to be on the safe size, user should avoid returning SBuffer values. - SBuffer(const SBuffer &source) : SContainer() { - s = StringAllocate(source.s, source.sSize); - sSize = (s) ? source.sSize : 0; - } - /// Default assignment operator - // Same here, shouldn't be used - SBuffer &operator=(const SBuffer &source) { - if (this != &source) { - delete []s; - s = StringAllocate(source.s, source.sSize); - sSize = (s) ? source.sSize : 0; - } - return *this; - } -public: - /** Provide direct read/write access to buffer. */ - char *ptr() { - return s; - } - /** Ownership of the buffer have been taken, so release it. */ - void reset() { - s = 0; - sSize = 0; - } - /** Size of buffer. */ - lenpos_t size() const { - return SContainer::size(); - } -}; - - -/** - * @brief A simple string class. - * - * Hold the length of the string for quick operations, - * can have a buffer bigger than the string to avoid too many memory allocations and copies. - * May have embedded zeroes as a result of @a substitute, but relies too heavily on C string - * functions to allow reliable manipulations of these strings, other than simple appends, etc. - */ -class SString : protected SContainer { - lenpos_t sLen; ///< The size of the string in s - lenpos_t sizeGrowth; ///< Minimum growth size when appending strings - enum { sizeGrowthDefault = 64 }; - - bool grow(lenpos_t lenNew); - SString &assign(const char *sOther, lenpos_t sSize_=measure_length); - -public: - SString() : sLen(0), sizeGrowth(sizeGrowthDefault) {} - SString(const SString &source) : SContainer(), sizeGrowth(sizeGrowthDefault) { - s = StringAllocate(source.s, source.sLen); - sSize = sLen = (s) ? source.sLen : 0; - } - SString(const char *s_) : sizeGrowth(sizeGrowthDefault) { - s = StringAllocate(s_); - sSize = sLen = (s) ? strlen(s) : 0; - } - SString(SBuffer &buf) : sizeGrowth(sizeGrowthDefault) { - s = buf.ptr(); - sSize = sLen = buf.size(); - // Consumes the given buffer! - buf.reset(); - } - SString(const char *s_, lenpos_t first, lenpos_t last) : sizeGrowth(sizeGrowthDefault) { - // note: expects the "last" argument to point one beyond the range end (a la STL iterators) - s = StringAllocate(s_ + first, last - first); - sSize = sLen = (s) ? last - first : 0; - } - SString(int i); - SString(double d, int precision); - ~SString() { - sLen = 0; - } - void clear() { - if (s) { - *s = '\0'; - } - sLen = 0; - } - /** Size of buffer. */ - lenpos_t size() const { - return SContainer::size(); - } - /** Size of string in buffer. */ - lenpos_t length() const { - return sLen; - } - /** Read access to a character of the string. */ - char operator[](lenpos_t i) const { - return (s && i < sSize) ? s[i] : '\0'; - } - SString &operator=(const char *source) { - return assign(source); - } - SString &operator=(const SString &source) { - if (this != &source) { - assign(source.s, source.sLen); - } - return *this; - } - bool operator==(const SString &sOther) const; - bool operator!=(const SString &sOther) const { - return !operator==(sOther); - } - bool operator==(const char *sOther) const; - bool operator!=(const char *sOther) const { - return !operator==(sOther); - } - bool contains(char ch) const { - return (s && *s) ? strchr(s, ch) != 0 : false; - } - void setsizegrowth(lenpos_t sizeGrowth_) { - sizeGrowth = sizeGrowth_; - } - const char *c_str() const { - return s ? s : ""; - } - /** Give ownership of buffer to caller which must use delete[] to free buffer. */ - char *detach() { - char *sRet = s; - s = 0; - sSize = 0; - sLen = 0; - return sRet; - } - SString substr(lenpos_t subPos, lenpos_t subLen=measure_length) const; - SString &lowercase(lenpos_t subPos = 0, lenpos_t subLen=measure_length); - SString &uppercase(lenpos_t subPos = 0, lenpos_t subLen=measure_length); - SString &append(const char *sOther, lenpos_t sLenOther=measure_length, char sep = '\0'); - SString &operator+=(const char *sOther) { - return append(sOther, static_cast<lenpos_t>(measure_length)); - } - SString &operator+=(const SString &sOther) { - return append(sOther.s, sOther.sLen); - } - SString &operator+=(char ch) { - return append(&ch, 1); - } - SString &appendwithseparator(const char *sOther, char sep) { - return append(sOther, strlen(sOther), sep); - } - SString &insert(lenpos_t pos, const char *sOther, lenpos_t sLenOther=measure_length); - - /** - * Remove @a len characters from the @a pos position, included. - * Characters at pos + len and beyond replace characters at pos. - * If @a len is 0, or greater than the length of the string - * starting at @a pos, the string is just truncated at @a pos. - */ - void remove(lenpos_t pos, lenpos_t len); - - SString &change(lenpos_t pos, char ch) { - if (pos < sLen) { // character changed must be in string bounds - *(s + pos) = ch; - } - return *this; - } - /** Read an integral numeric value from the string. */ - int value() const { - return s ? atoi(s) : 0; - } - bool startswith(const char *prefix); - bool endswith(const char *suffix); - int search(const char *sFind, lenpos_t start=0) const; - bool contains(const char *sFind) const { - return search(sFind) >= 0; - } - int substitute(char chFind, char chReplace); - int substitute(const char *sFind, const char *sReplace); - int remove(const char *sFind) { - return substitute(sFind, ""); - } -}; - - -/** - * Duplicate a C string. - * Allocate memory of the given size, or big enough to fit the string if length isn't given; - * then copy the given string in the allocated memory. - * @return the pointer to the new string - */ -inline char *StringDup( - const char *s, ///< The string to duplicate - SContainer::lenpos_t len=SContainer::measure_length) ///< The length of memory to allocate. Optional. -{ - return SContainer::StringAllocate(s, len); -} - -#ifdef SCI_NAMESPACE -} -#endif - -#endif |