Sebastian Kuschel reports that pfd_closing can be called for a socket
[u/mdw/putty] / charset / sbcs.c
CommitLineData
2dc6356a 1/*
2 * sbcs.c - routines to handle single-byte character sets.
3 */
4
5#include "charset.h"
6#include "internal.h"
7
8/*
9 * The charset_spec for any single-byte character set should
10 * provide read_sbcs() as its read function, and its `data' field
11 * should be a wchar_t string constant containing the 256 entries
12 * of the translation table.
13 */
14
15void read_sbcs(charset_spec const *charset, long int input_chr,
16 charset_state *state,
17 void (*emit)(void *ctx, long int output), void *emitctx)
18{
eea6a39a 19 const struct sbcs_data *sd = charset->data;
2dc6356a 20
21 UNUSEDARG(state);
22
eea6a39a 23 emit(emitctx, sd->sbcs2ucs[input_chr]);
2dc6356a 24}
25
26void write_sbcs(charset_spec const *charset, long int input_chr,
27 charset_state *state,
28 void (*emit)(void *ctx, long int output), void *emitctx)
29{
eea6a39a 30 const struct sbcs_data *sd = charset->data;
a40dfe4e 31 int i, j, k, c;
2dc6356a 32
33 UNUSEDARG(state);
34
35 /*
a40dfe4e 36 * Binary-search in the ucs2sbcs table.
2dc6356a 37 */
a40dfe4e 38 i = -1;
39 j = sd->nvalid;
40 while (i+1 < j) {
41 k = (i+j)/2;
42 c = sd->ucs2sbcs[k];
43 if (input_chr < sd->sbcs2ucs[c])
44 j = k;
45 else if (input_chr > sd->sbcs2ucs[c])
46 i = k;
47 else {
48 emit(emitctx, c);
2dc6356a 49 return;
50 }
a40dfe4e 51 }
2dc6356a 52 emit(emitctx, ERROR);
53}