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festival: Drop MAX_LINE_LENGTH

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Limit number of bytes to be written by PIPE_BUF.
This commit is contained in:
Witold Filipczyk 2007-03-12 17:01:55 +01:00 committed by Witold Filipczyk
parent 9eb1c751ed
commit d008728ab0
1 changed files with 6 additions and 8 deletions
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14
src/viewer/text/festival.c
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@ -60,12 +60,6 @@ read_from_festival(struct fest *fest)
#define FLITE_SYSTEM 1
#define ESPEAK_SYSTEM 2
/* How many character cells to speak from each line. Because
* write_to_festival currently cannot recover from short writes, this
* must be set so low that the generated string cannot become more
* than PIPE_BUF bytes long. SUSv2 says PIPE_BUF >= 512. */
#define MAX_LINE_LENGTH 240
static void
write_to_festival(struct fest *fest)
{
@ -88,7 +82,6 @@ write_to_festival(struct fest *fest)
return;
len = doc->data[fest->line].length;
int_upper_bound(&len, MAX_LINE_LENGTH);
if (!init_string(&buf))
return;
@ -106,13 +99,19 @@ write_to_festival(struct fest *fest)
for (i = 0; i < len; i++) {
unsigned char ch = (unsigned char)data[i].data;
int old_len = buf.length;
if (ch == '"' || ch == '\\')
add_char_to_string(&buf, '\\');
add_char_to_string(&buf, ch);
if (buf.length > PIPE_BUF - 3) {
buf.length = old_len;
break;
}
}
add_to_string(&buf, "\")");
} else { /* flite */
int_upper_bound(&len, PIPE_BUF - 1);
for (i = 0; i < len; i++) {
unsigned char ch = (unsigned char)data[i].data;
@ -273,7 +272,6 @@ init_festival(void)
#undef FESTIVAL_SYSTEM
#undef FLITE_SYSTEM
#undef ESPEAK_SYSTEM
#undef MAX_LINE_LENGTH
void
run_festival(struct session *ses, struct document_view *doc_view)