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36 lines
1.1 KiB
Groff
36 lines
1.1 KiB
Groff
7 years ago
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.TH scan_cescape 3
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.SH NAME
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scan_cescape \- parse C escaped string
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.SH SYNTAX
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.B #include <libowfat/textcode.h>
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size_t \fBscan_cescape\fP(const char *\fIsrc\fR,char *\fIdest\fR,size_t* \fIdestlen\fR);
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.SH DESCRIPTION
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scan_cescape parses C escaped text from src into dest.
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Parsing stops at the 0 terminator, invalid input characters or a double
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quote that was not escaped.
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C escape sequences like \\n and \\x0a and \\012 are translated into
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their binary counterparts. The C99 escape sequences \\u and \\U are
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supported and lead to UTF-8 sequences being output.
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scan_cescape will then write the number of bytes in dest into *destlen,
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and return the number of bytes decoded from src.
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dest can be NULL. destlen can be NULL.
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To make sure dest is large enough, either allocate strlen(src)+1 bytes
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or call scan_cescape twice, the first time with dest == NULL (*destlen
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will still be written).
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.SH "RETURN VALUE"
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scan_cescape returns the number of bytes successfully parsed
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from src.
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.SH EXAMPLES
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scan_cescape("test\\n\");",buf,&i) -> return 7, i=5, buf="test\n".
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.SH "SEE ALSO"
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fmt_jsonescape(3), fmt_cescape(3), scan_ldapescape(3)
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