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Highlight changed portion of topic 

"%.*ls" is useless.
master
C. McEnroe 2020-11-08 12:42:01 -05:00
parent 59006d18bb
commit a0abd6582e
1 changed files with 59 additions and 14 deletions
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73
handle.c
View File

@ -33,6 +33,7 @@
#include <stdlib.h>
#include <string.h>
#include <sysexits.h>
#include <wchar.h>
#include "chat.h"
@ -601,23 +602,16 @@ static void handleReplyTopic(struct Message *msg) {
);
}
static void swap(wchar_t *a, wchar_t *b) {
wchar_t x = *a;
*a = *b;
*b = x;
}
static void handleTopic(struct Message *msg) {
require(msg, true, 2);
uint id = idFor(msg->params[0]);
if (msg->params[1][0]) {
topicComplete(id, msg->params[1]);
urlScan(id, msg->nick, msg->params[1]);
uiFormat(
id, Warm, tagTime(msg),
"\3%02d%s\3\tplaces a new sign in \3%02d%s\3: %s",
hash(msg->user), msg->nick, hash(msg->params[0]), msg->params[0],
msg->params[1]
);
logFormat(
id, tagTime(msg), "%s places a new sign in %s: %s",
msg->nick, msg->params[0], msg->params[1]
);
} else {
if (!msg->params[1][0]) {
topicComplete(id, NULL);
uiFormat(
id, Warm, tagTime(msg),
@ -628,7 +622,58 @@ static void handleTopic(struct Message *msg) {
id, tagTime(msg), "%s removes the sign in %s",
msg->nick, msg->params[0]
);
return;
}
char buf[1024];
struct Cat cat = { buf, sizeof(buf), 0 };
const char *prev = complete(id, "/topic ");
completeReject();
if (prev) {
prev += 7;
} else {
goto plain;
}
wchar_t old[512];
wchar_t new[512];
if (swprintf(old, ARRAY_LEN(old), L"%s", prev) < 0) goto plain;
if (swprintf(new, ARRAY_LEN(new), L"%s", msg->params[1]) < 0) goto plain;
size_t pre;
for (pre = 0; old[pre] && new[pre] && old[pre] == new[pre]; ++pre);
wchar_t *osuf = &old[wcslen(old)];
wchar_t *nsuf = &new[wcslen(new)];
while (osuf > &old[pre] && nsuf > &new[pre] && osuf[-1] == nsuf[-1]) {
osuf--;
nsuf--;
}
wchar_t nul = L'\0';
swap(&new[pre], &nul);
catf(&cat, "%ls", new);
swap(&new[pre], &nul);
swap(osuf, &nul);
catf(&cat, "\399,%02d%ls", Brown, &old[pre]);
swap(osuf, &nul);
swap(nsuf, &nul);
catf(&cat, "\399,%02d%ls", Green, &new[pre]);
swap(nsuf, &nul);
catf(&cat, "\399,99%ls", nsuf);
plain:
topicComplete(id, msg->params[1]);
urlScan(id, msg->nick, msg->params[1]);
uiFormat(
id, Warm, tagTime(msg),
"\3%02d%s\3\tplaces a new sign in \3%02d%s\3: %s",
hash(msg->user), msg->nick, hash(msg->params[0]), msg->params[0],
(cat.len ? cat.buf : msg->params[1])
);
logFormat(
id, tagTime(msg), "%s places a new sign in %s: %s",
msg->nick, msg->params[0], msg->params[1]
);
}
static const char *UserModes[256] = {