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ICU-1007 add consistency check for decompositions of "true starters"

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X-SVN-Rev: 5656
This commit is contained in:
Markus Scherer 2001-08-31 16:33:00 +00:00
parent e95a1ea90e
commit 70a05a3f24
1 changed files with 49 additions and 0 deletions
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49
icu4c/source/tools/gennorm/store.c
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@ -969,9 +969,58 @@ static uint32_t countCCSame=0, countCCTrail=0, countCCTwo=0;
static uint32_t
make32BitNorm(Norm *norm) {
UChar extra[100];
const Norm *other;
uint32_t word;
int32_t i, length, beforeZero=0, count, start;
/*
* Check for assumptions:
*
* Test that if a "true starter" (cc==0 && NF*C_YES) decomposes,
* then the decomposition also begins with a true starter.
*/
if(norm->udataCC==0) {
/* this is a starter */
if((norm->qcFlags&_NORM_QC_NFC)==0 && norm->lenNFD>0) {
/* a "true" NFC starter with a canonical decomposition */
if( norm->canonBothCCs>=0x100 || /* lead cc!=0 or */
(other=getNorm(norm->nfd[0]))!=NULL && (other->qcFlags&_NORM_QC_NFC)!=0 /* nfd[0] not NFC_YES */
) {
fprintf(stderr,
"error: true NFC starter canonical decomposition[%u] does not begin\n"
" with a true NFC starter: U+%04lx U+%04lx%s\n",
norm->lenNFD, norm->nfd[0], norm->nfd[1], norm->lenNFD<=2 ? "" : " ...");
exit(U_INVALID_TABLE_FILE);
}
}
if((norm->qcFlags&_NORM_QC_NFKC)==0 && norm->lenNFD>0) {
/* a "true" NFKC starter with a canonical decomposition */
if( norm->canonBothCCs>=0x100 || /* lead cc!=0 or */
(other=getNorm(norm->nfd[0]))!=NULL && (other->qcFlags&_NORM_QC_NFKC)!=0 /* nfd[0] not NFC_YES */
) {
fprintf(stderr,
"error: true NFKC starter canonical decomposition[%u] does not begin\n"
" with a true NFKC starter: U+%04lx U+%04lx%s\n",
norm->lenNFD, norm->nfd[0], norm->nfd[1], norm->lenNFD<=2 ? "" : " ...");
exit(U_INVALID_TABLE_FILE);
}
}
if((norm->qcFlags&_NORM_QC_NFKC)==0 && norm->lenNFKD>0) {
/* a "true" NFKC starter with a compatibility decomposition */
if( norm->compatBothCCs>=0x100 || /* lead cc!=0 or */
(other=getNorm(norm->nfkd[0]))!=NULL && (other->qcFlags&_NORM_QC_NFKC)!=0 /* nfkd[0] not NFC_YES */
) {
fprintf(stderr,
"error: true NFKC starter compatibility decomposition[%u] does not begin\n"
" with a true NFKC starter: U+%04lx U+%04lx%s\n",
norm->lenNFKD, norm->nfkd[0], norm->nfkd[1], norm->lenNFKD<=2 ? "" : " ...");
exit(U_INVALID_TABLE_FILE);
}
}
}
/* reset the 32-bit word and set the quick check flags */
word=norm->qcFlags;