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festival: Use the terminal codepage for the speech output.

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Also limit the number of bytes written do the pipe to PIPE_BUF.
The configuration of the speech engine (proper encoding, voice, etc.)
is left to the user.
This commit is contained in:
Witold Filipczyk 2007-03-10 19:21:17 +01:00 committed by Witold Filipczyk
parent 094b75d5ac
commit 9362dfb9ae
1 changed files with 50 additions and 8 deletions
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58
src/viewer/text/festival.c
View File

@ -16,9 +16,13 @@
#include "document/document.h"
#include "document/view.h"
#include "intl/charsets.h"
#include "main/select.h"
#include "osdep/osdep.h"
#include "protocol/common.h"
#include "session/session.h"
#include "terminal/terminal.h"
#include "terminal/window.h"
#include "util/box.h"
#include "util/string.h"
#include "viewer/action.h"
@ -66,8 +70,7 @@ static void
write_to_festival(struct fest *fest)
{
struct string buf;
int i, w;
int len;
int i, w, len;
struct document_view *doc_view = fest->doc_view;
struct document *doc = NULL;
struct screen_char *data;
@ -91,11 +94,16 @@ write_to_festival(struct fest *fest)
return;
data = doc->data[fest->line].chars;
if (festival.speech_system == FESTIVAL_SYSTEM) {
/* The terminal codepage is used for the speech output. */
#ifdef CONFIG_UTF8
if (!doc_view->session->tab->term->utf8)
#endif
if (fest->speech_system == FESTIVAL_SYSTEM) {
/* The string generated here will be at most
* 10+MAX_LINE_LENGTH*2+2+1 bytes long. */
add_to_string(&buf, "(SayText \"");
/* UTF-8 not supported yet. Does festival support UTF-8? */
for (i = 0; i < len; i++) {
unsigned char ch = (unsigned char)data[i].data;
@ -111,8 +119,39 @@ write_to_festival(struct fest *fest)
add_char_to_string(&buf, ch);
}
}
add_char_to_string(&buf, '\n');
#ifdef CONFIG_UTF8
else {
if (fest->speech_system == FESTIVAL_SYSTEM) {
add_to_string(&buf, "(SayText \"");
for (i = 0; i < len; i++) {
unsigned char *text = encode_utf8(data[i].data);
int old_len = buf.length;
if (text[0] == '"' || text[0] == '\\')
add_char_to_string(&buf, '\\');
add_to_string(&buf, text);
if (buf.length > PIPE_BUF - 3) {
buf.length = old_len;
break;
}
}
add_to_string(&buf, "\")");
} else {
for (i = 0; i < len; i++) {
unsigned char *text = encode_utf8(data[i].data);
int old_len = buf.length;
add_to_string(&buf, text);
if (buf.length > PIPE_BUF - 1) {
buf.length = old_len;
break;
}
}
}
}
#endif
add_char_to_string(&buf, '\n');
#if 0
/* Cannot allow a short write here. It would probably cause
* an unpaired quote character to be sent to festival,
* enabling a command injection attack. If buf.length <=
@ -120,9 +159,11 @@ write_to_festival(struct fest *fest)
* not at all. Compare to _POSIX_PIPE_BUF instead, to ensure
* portability to systems with an unusually low PIPE_BUF.
* If this assertion fails, that means MAX_LINE_LENGTH was
* set too high. */
* set too high. */
assert(buf.length <= _POSIX_PIPE_BUF);
if_assert_failed { buf.length = 0; }
#endif
w = safe_write(fest->out, buf.source, buf.length);
if (w >= 0) {
assert(w == buf.length);
@ -136,6 +177,7 @@ write_to_festival(struct fest *fest)
close(fest->out);
fest->out = -1;
}
if (fest->line >= doc_view->vs->y + doc_view->box.height) {
move_page_down(doc_view->session, doc_view);
refresh_view(doc_view->session, doc_view, 0);
@ -204,10 +246,10 @@ init_festival(void)
break;
}
do {
char line[1024];
char line[2048];
FILE *out;
fgets(line, 1024, stdin);
fgets(line, 2048, stdin);
out = popen(program, "w");
if (out) {
fputs(line, out);