extend API To read line/token to stralloc to allow clearing the
stralloc first. add stralloc_zero to clear a strallocmaster
parent
dd66bcb7c3
commit
82b0bb6f39
@ -0,0 +1,26 @@
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.TH buffer_get_new_token_sa 3
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.SH NAME
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buffer_get_new_token_sa \- read token from buffer
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.SH SYNTAX
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.nf
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.B #include <stralloc.h>
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.B #include <buffer.h>
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int \fBbuffer_get_new_token_sa\fP(buffer* \fIb\fR,stralloc* \fIsa\fR,
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const char* \fIcharset\fR,unsigned int \fIsetlen\fR);
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.SH DESCRIPTION
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buffer_get_new_token_sa copies data from the \fIb\fR to \fIsa\fR until
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one of the delimiters in \fIcharset\fR is found, overwriting the
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previous content of \fIsa\fR. That delimiter is also copied to
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\fIsa\fR.
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If reading from the buffer or allocating memory fails,
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buffer_get_new_token_sa returns -1 and sets \fIerrno\fR appropriately. At
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that point \fIsa\fR may already contain a partial token.
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On success, buffer_get_new_token_sa returns 0.
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If you want to read from a non-blocking socket, use buffer_get_token_sa
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instead.
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.SH "SEE ALSO"
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buffer_getline_sa(3), buffer_get_token(3), buffer(3)
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#include "stralloc.h"
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#include "buffer.h"
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int buffer_get_new_token_sa(buffer* b,stralloc* sa,const char* charset,unsigned int setlen) {
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stralloc_zero(sa);
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return buffer_get_token_sa(b,sa,charset,setlen);
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}
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.TH buffer_get_new_token_sa_pred 3
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.SH NAME
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buffer_get_new_token_sa_pred \- read token from buffer
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.SH SYNTAX
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.nf
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.B #include <stralloc.h>
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.B #include <buffer.h>
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int \fBbuffer_get_new_token_sa_pred\fP(buffer* \fIb\fR,stralloc* \fIsa\fR,
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int (*\fIpredicate\fR)(stralloc* * \fIsa\fR));
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.SH DESCRIPTION
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buffer_get_token_sa_pred copies data from \fIb\fR to \fIsa\fR until
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\fIpredicate\fR(\fIsa\fR) returns 1 or -1.
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If \fIpredicate\fR returns 1 once a '\\n' was read, that new-line
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character is still appended to \fIsa\fR -- use stralloc_chop or
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stralloc_chomp to get rid of it. \fIpredicate\fR can also return 0
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(indicating further input is required to complete the token) or -1
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(abort and return -1; use this if \fIpredicate\fR wants to enfore a
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maximum message size or does timeout handling or detects a malformed
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message).
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If reading from the buffer or allocating memory fails,
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buffer_get_new_token_sa_pred returns -1 and sets \fIerrno\fR
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appropriately. At that point \fIsa\fR may already contain a partial
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token.
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On success, buffer_get_new_token_sa_pred returns 0.
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If you want to read from a non-blocking socket, use
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buffer_get_token_sa_pred instead.
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.SH "SEE ALSO"
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buffer_getline_sa(3), buffer_get_token(3), buffer(3)
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#include "stralloc.h"
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#include "buffer.h"
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int buffer_get_new_token_sa_pred(buffer* b,stralloc* sa,sa_predicate p) {
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stralloc_zero(sa);
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return buffer_get_token_sa_pred(b,sa,p);
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}
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.TH buffer_getline 3
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.SH NAME
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buffer_getline \- read line from buffer
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.SH SYNTAX
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.B #include <buffer.h>
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int \fBbuffer_getline\fP(buffer* \fIb\fR,char* \fIx\fR,unsigned int \fIlen\fR);
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.SH DESCRIPTION
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buffer_getline copies data from \fIb\fR to \fIx\fR[0], \fIx\fR[1], ...,
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\fIx\fR[\fIlen\fR-1] until \fIlen\fR bytes have been copied or a
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new-line character ('\\n') is encountered. That character is also
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copied.
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buffer_getline returns the number of bytes read (excluding the '\\n') or
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-1 on error (setting \fIerrno\fR appropriately).
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Note that line is not 0-terminated to make reading lines with 0-bytes
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possible through this interface.
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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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.TH buffer_getnewline_sa 3
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.SH NAME
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buffer_getnewline_sa \- read line from buffer
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.SH SYNTAX
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.nf
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.B #include <stralloc.h>
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.B #include <buffer.h>
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int \fBbuffer_getnewline_sa\fP(buffer* \fIb\fR,stralloc* \fIsa\fR);
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.SH DESCRIPTION
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buffer_getnewline_sa copies data from the \fIb\fR to \fIsa\fR until a '\\n'
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is found, overwriting the previous content of \fIsa\fR. The new-line
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is also appended to \fIsa\fR.
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If reading from the buffer or allocating memory fails,
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buffer_getnewline_sa returns -1 and sets \fIerrno\fR appropriately. At
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that point \fIsa\fR may be empty or it may already contain a partial
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token.
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On success, buffer_getnewline_sa returns 0.
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To read from a non-blocking socket, use buffer_getline_sa.
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.SH "SEE ALSO"
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buffer_get_token_sa(3), buffer(3)
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#include "stralloc.h"
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#include "buffer.h"
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int buffer_getnewline_sa(buffer* b,stralloc* sa) {
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stralloc_zero(sa);
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return buffer_getline_sa(b,sa);
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}
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.TH stralloc_zero 3
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.SH NAME
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stralloc_zero \- set length of stralloc to 0
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.SH SYNTAX
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.B #include <stralloc.h>
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int \fBstralloc_zero\fP(stralloc* \fIsa\fR);
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.SH DESCRIPTION
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stralloc_zero sets the length of the stralloc to 0.
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It is a shortcut for stralloc_copys(\fIsa\fR,"").
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.SH "SEE ALSO"
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stralloc_copys(3)
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