syncfiles/convert.h
Dietrich Epp 2768a0c856 Add plain text and XML files to filter list
GitOrigin-RevId: 2c5ded355b43463d20e6e9e65c32a6c566df82a7
2021-03-26 03:47:55 -04:00

54 lines
1.9 KiB
C

// These helper functions are written so the conversion functions can be written
// for a standard C environment without using Macintosh Toolbox functions.
enum {
// Base size of temporary buffer for converting files, not counting the
// "extra".
kBufferBaseSize = 16 * 1024,
// Extra space past the end of the buffer for converting files.
kBufferExtraSize = 16,
// Total size of a buffer.
kBufferTotalSize = kBufferBaseSize + kBufferExtraSize,
};
// =============================================================================
// Helper functions
// =============================================================================
// Result codes for convert_read and convert_write.
enum {
kConvertOK,
kConvertError,
kConvertEOF,
};
// Read data from a file.
int convert_read(short ref, long *count, void *data);
// Write data to a file.
int convert_write(short ref, long count, const void *data);
// Get the table for converting from Unix to Macintosh.
unsigned short *mac_from_unix_data(void);
// =============================================================================
// Conversion functions
// =============================================================================
// Convert Macintosh encoding with CR line endings to UTF-8 with LF. The source
// and destinations are file handles. The buffers have size buf
int mac_to_unix(short srcRef, short destRef, void *srcBuf, void *destBuf);
// Convert UTF-8 with LF line endings to Macintosh encoding with CR. The source
// and destinations are file handles. The buffers have size kBufferTotalSize.
int mac_from_unix(short srcRef, short destRef, void *srcBuf, void *destBuf);
// Raw data copy.
int copy_data(short srcRef, short destRef, void *buf);
// Convert line endings but don't change encoding.
int convert_line_endings(short srcRef, short destRef, void *buf,
unsigned char srcEnding, unsigned char destEnding);