xnoe/cpp-utf8
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Replaced spaces with tabs

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Xnoe 2020-07-08 18:22:21 +01:00 committed by Elsie
parent 61b74efa9c
commit 2e6817f04e
1 changed files with 34 additions and 34 deletions
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68
utf8.h
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@ -7,44 +7,44 @@
#include <stdint.h> #include <stdint.h>
class char32 { class char32 {
uint32_t fetch32(char** cstr) { uint32_t fetch32(char** cstr) {
uint32_t r(0); uint32_t r(0);
int i(1); int i(1);
unsigned char compare = (unsigned char)**cstr; unsigned char compare = (unsigned char)**cstr;
if (compare >> 3 == 0b11110) i = 4; if (compare >> 3 == 0b11110) i = 4;
if (compare >> 4 == 0b1110) i = 3; if (compare >> 4 == 0b1110) i = 3;
if (compare >> 5 == 0b110) i = 2; if (compare >> 5 == 0b110) i = 2;
for (;i>0;i--) { for (;i>0;i--) {
r <<= 8; r <<= 8;
r += (unsigned char)**cstr; r += (unsigned char)**cstr;
(*cstr)++; (*cstr)++;
} }
return r; return r;
} }
public: public:
uint32_t c; uint32_t c;
char32(uint32_t i) {c = i;} char32(uint32_t i) {c = i;}
char32(const char* s) {c = fetch32((char**)&s);} char32(const char* s) {c = fetch32((char**)&s);}
char32(char** s) {c = fetch32(s);} char32(char** s) {c = fetch32(s);}
bool operator==(char* cs) {return c==fetch32(&cs);} bool operator==(char* cs) {return c==fetch32(&cs);}
bool operator==(char32 cs) {return c==cs.c;} bool operator==(char32 cs) {return c==cs.c;}
uint32_t operator>>(int a) const {return c>>a;} uint32_t operator>>(int a) const {return c>>a;}
}; };
std::ostream& operator<<(std::ostream& stream, const char32& c32) { std::ostream& operator<<(std::ostream& stream, const char32& c32) {
stream << (char)(c32>>24) << (char)(c32>>16) << (char)(c32>>8) << (char)c32.c; stream << (char)(c32>>24) << (char)(c32>>16) << (char)(c32>>8) << (char)c32.c;
return stream; return stream;
} }
struct string32 { struct string32 {
std::vector<char32> cs; std::vector<char32> cs;
string32(char* sd) { string32(char* sd) {
while (sd[0]) while (sd[0])
cs.push_back(char32(&sd)); cs.push_back(char32(&sd));
} }
int size() const {return cs.size();} int size() const {return cs.size();}
char32 operator[](int i) const {return cs[i];} char32 operator[](int i) const {return cs[i];}
void replace(string32 find, string32 with) { void replace(string32 find, string32 with) {
int havematched(0); int havematched(0);
int findsize = find.cs.size(); int findsize = find.cs.size();
for (int index(0); index < cs.size(); index++) { for (int index(0); index < cs.size(); index++) {
@ -57,11 +57,11 @@ struct string32 {
break; break;
} }
} }
} }
}; };
std::ostream& operator<<(std::ostream& stream, const string32& s32) { std::ostream& operator<<(std::ostream& stream, const string32& s32) {
for (int i=0;i<s32.size();i++) for (int i=0;i<s32.size();i++)
stream << s32[i]; stream << s32[i];
return stream; return stream;
} }