36 lines
1.2 KiB
Groff
36 lines
1.2 KiB
Groff
.\" auto-generated by docbook2man-spec from docbook-utils package
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.TH "FcCharSetFirstPage" "3" "05 8月 2016" "Fontconfig 2.12.1" ""
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.SH NAME
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FcCharSetFirstPage \- Start enumerating charset contents
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.SH SYNOPSIS
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.nf
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\fB#include <fontconfig/fontconfig.h>
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.sp
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FcChar32 FcCharSetFirstPage (const FcCharSet *\fIa\fB, FcChar32[FC_CHARSET_MAP_SIZE] \fImap\fB, FcChar32 *\fInext\fB);
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.fi\fR
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.SH "DESCRIPTION"
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.PP
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Builds an array of bits in \fImap\fR marking the
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first page of Unicode coverage of \fIa\fR\&.
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\fI*next\fR is set to contains the base code point
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for the next page in \fIa\fR\&. Returns the base code
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point for the page, or FC_CHARSET_DONE if
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\fIa\fR contains no pages. As an example, if
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\fBFcCharSetFirstPage\fR returns
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0x300 and fills \fImap\fR with
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.sp
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.nf
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0xffffffff 0xffffffff 0x01000008 0x44300002 0xffffd7f0 0xfffffffb 0xffff7fff 0xffff0003
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.sp
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.fi
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Then the page contains code points 0x300 through
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0x33f (the first 64 code points on the page)
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because \fImap[0]\fR and
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\fImap[1]\fR both have all their bits set. It also
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contains code points 0x343 (\fI0x300 + 32*2
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+ (4-1)\fR) and 0x35e (\fI0x300 +
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32*2 + (31-1)\fR) because \fImap[2]\fR has
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the 4th and 31st bits set. The code points represented by
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map[3] and later are left as an excercise for the
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reader ;).
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