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Restore code to handle wcwidth failure so that unknown codepoints still
do the most likely right thing. GitHub issue 3427, patch based on an diff from Jesse Luehrs in GitHub issue 3003.
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12
utf8.c
12
utf8.c
@ -229,13 +229,21 @@ utf8_width(struct utf8_data *ud, int *width)
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case 0:
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return (UTF8_ERROR);
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}
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log_debug("UTF-8 %.*s is %08X", (int)ud->size, ud->data, (u_int)wc);
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#ifdef HAVE_UTF8PROC
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*width = utf8proc_wcwidth(wc);
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log_debug("utf8proc_wcwidth(%08X) returned %d", (u_int)wc, *width);
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#else
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*width = wcwidth(wc);
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log_debug("wcwidth(%08X) returned %d", (u_int)wc, *width);
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if (*width < 0) {
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/*
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* C1 control characters are nonprintable, so they are always
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* zero width.
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*/
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*width = (wc >= 0x80 && wc <= 0x9f) ? 0 : 1;
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}
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#endif
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log_debug("UTF-8 %.*s %#x, wcwidth() %d", (int)ud->size, ud->data,
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(u_int)wc, *width);
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if (*width >= 0 && *width <= 0xff)
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return (UTF8_DONE);
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return (UTF8_ERROR);
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