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.TH buffer_get_token_pred 3
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.SH NAME
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buffer_get_token_pred \- read token from buffer
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.SH SYNTAX
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.B #include <buffer.h>
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int \fBbuffer_get_token_pred\fP(buffer* \fIb\fR,char* \fIx\fR,unsigned long int \fIlen\fR,
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int (*\fIpredicate\fR)(const char* \fIs\fR,unsigned long int \fIlen\fR));
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.SH DESCRIPTION
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buffer_get_token_pred copies data from \fIb\fR to \fIx\fR[0],
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\fIx\fR[1], ..., \fIx\fR[\fIlen\fR-1] until \fIlen\fR bytes have been
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read or \fIpredicate\fR called on the destination string returns
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nonzero.
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\fIpredicate\fR can also return 0 (indicating further input is required
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to complete the token) or -1 (abort and return -1; use this if
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\fIpredicate\fR wants to enfore a maximum message size or does timeout
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handling or detects a malformed message).
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buffer_get_token_pred returns the number of bytes copied or -1 on
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error (setting \fIerrno\fR appropriately).
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.SH "SEE ALSO"
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buffer_init(3), buffer_feed(3), buffer_peek(3), buffer_seek(3), buffer(3)
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