Wrap mbtowc to check for errors
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bc13aa5960
commit
4e13ff39c3
19
tr.c
19
tr.c
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@ -46,6 +46,17 @@ handleescapes(char *s)
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}
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}
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static int
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xmbtowc(wchar_t *unicodep, const char *s)
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{
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int rv;
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rv = mbtowc(unicodep, s, 4);
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if (rv < 0)
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eprintf("mbtowc:");
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return rv;
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}
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static void
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parsemapping(const char *set1, const char *set2, wchar_t *mappings)
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{
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@ -64,12 +75,12 @@ parsemapping(const char *set1, const char *set2, wchar_t *mappings)
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while(*s1) {
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if(*s1 == '\\')
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handleescapes(++s1);
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leftbytes = mbtowc(&runeleft, s1, 4);
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leftbytes = xmbtowc(&runeleft, s1);
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s1 += leftbytes;
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if(*s2 == '\\')
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handleescapes(++s2);
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if(*s2 != '\0') {
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rightbytes = mbtowc(&runeright, s2, 4);
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rightbytes = xmbtowc(&runeright, s2);
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s2 += rightbytes;
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}
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mappings[runeleft] = runeright;
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@ -85,7 +96,7 @@ maptonull(const wchar_t *mappings, char *in)
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s = in;
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while(*s) {
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leftbytes = mbtowc(&runeleft, s, 4);
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leftbytes = xmbtowc(&runeleft, s);
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if(!mappings[runeleft])
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putwchar(runeleft);
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s += leftbytes;
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@ -101,7 +112,7 @@ maptoset(const wchar_t *mappings, char *in)
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s = in;
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while(*s) {
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leftbytes = mbtowc(&runeleft, s, 4);
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leftbytes = xmbtowc(&runeleft, s);
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if(!mappings[runeleft])
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putwchar(runeleft);
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else
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