nhyatt/putty-source
1
0
Fork 0
mirror of https://git.tartarus.org/simon/putty.git synced 2025-07-01 19:42:48 -05:00
Code Issues Projects Releases Wiki Activity

First draft of Unicode support in pterm. It's pretty complete: it

Browse Source 
does UTF-8 copy and paste (falling back to normal strings if
necessary), it understands X font encodings and translates things
accordingly so that if you have a Unicode font you can ask for
virtually any single-byte encoding and get it (Mac-Roman pterm,
anyone?), and so on. There's work left to be done (wide fonts for
CJK spring to mind), but I reckon this is a pretty good start.

[originally from svn r2395]
This commit is contained in:
Simon Tatham
2002-12-31 12:20:34 +00:00
parent 241570c04f
commit ad2bbc52a4
20 changed files with 2836 additions and 50 deletions
Download Patch File Download Diff File Expand all files Collapse all files

89
charset/toucs.c Normal file
View File

@ -0,0 +1,89 @@
/*
* toucs.c - convert charsets to Unicode.
*/
#include "charset.h"
#include "internal.h"
struct unicode_emit_param {
wchar_t *output;
int outlen;
const wchar_t *errstr;
int errlen;
int stopped;
};
static void unicode_emit(void *ctx, long int output)
{
struct unicode_emit_param *param = (struct unicode_emit_param *)ctx;
wchar_t outval;
wchar_t const *p;
int outlen;
if (output == ERROR) {
if (param->errstr) {
p = param->errstr;
outlen = param->errlen;
} else {
outval = 0xFFFD; /* U+FFFD REPLACEMENT CHARACTER */
p = &outval;
outlen = 1;
}
} else {
outval = output;
p = &outval;
outlen = 1;
}
if (param->outlen >= outlen) {
while (outlen > 0) {
*param->output++ = *p++;
param->outlen--;
outlen--;
}
} else {
param->stopped = 1;
}
}
int charset_to_unicode(char **input, int *inlen, wchar_t *output, int outlen,
int charset, charset_state *state,
const wchar_t *errstr, int errlen)
{
charset_spec const *spec = charset_find_spec(charset);
charset_state localstate;
struct unicode_emit_param param;
param.output = output;
param.outlen = outlen;
param.errstr = errstr;
param.errlen = errlen;
param.stopped = 0;
if (!state) {
localstate.s0 = 0;
} else {
localstate = *state; /* structure copy */
}
while (*inlen > 0) {
int lenbefore = param.output - output;
spec->read(spec, (unsigned char)**input, &localstate,
unicode_emit, &param);
if (param.stopped) {
/*
* The emit function has _tried_ to output some
* characters, but ran up against the end of the
* buffer. Leave immediately, and return what happened
* _before_ attempting to process this character.
*/
return lenbefore;
}
if (state)
*state = localstate; /* structure copy */
(*input)++;
(*inlen)--;
}
return param.output - output;
}