libui/windows/tools/lib.hpp

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// 21 may 2018
#include <vector>
class Error {
public:
virtual ~Error(void) = default;
virtual const char *String(void) const = 0;
};
extern Error *NewEOF(void);
extern Error *NewErrShortWrite(void);
extern bool IsEOF(Error *e);
class ReadCloser {
public:
virtual ~ReadCloser(void) = default;
virtual Error *Read(void *buf, size_t n, size_t *actual) = 0;
};
class WriteCloser {
public:
virtual ~WriteCloser(void) = default;
virtual Error *Write(void *buf, size_t n) = 0;
};
extern Error *OpenRead(const char *filename, ReadCloser **r);
extern Error *CreateWrite(const char *filename, WriteCloser **w);
extern Error *WriteVector(WriteCloser *w, std::vector<char> *v);
class Scanner {
ReadCloser *r;
char *buf;
const char *p;
size_t n;
std::vector<char> *line;
Error *err;
public:
Scanner(ReadCloser *r);
~Scanner(void);
bool Scan(void);
const char *Bytes(void) const;
size_t Len(void) const;
Error *Err(void) const;
};
extern void AppendString(std::vector<char> *v, const char *str);
class Slice {
const char *p;
size_t n;
public:
Slice(const char *p, size_t n);
const char *Data(void) const;
size_t Len(void) const;
};
extern std::vector<Slice *> *TokenizeWhitespace(const char *buf, size_t n);
extern void FreeTokenized(std::vector<Slice *> *v);
extern void AppendSlice(std::vector<char> *v, Slice *s);