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ICU-744 POSIX parsing bugs

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X-SVN-Rev: 6751
This commit is contained in:
Steven R. Loomis 2001-11-10 22:41:51 +00:00
parent e450946b2f
commit 217e9c4fd0
1 changed files with 51 additions and 4 deletions
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55
icu4c/source/common/putil.c
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@ -1081,14 +1081,41 @@ const char*
uprv_getDefaultLocaleID()
{
#if U_POSIX_LOCALE
/*
Note that: (a '!' means the ID is improper somehow)
LC_ALL ----> default_loc codepage
--------------------------------------------------------
ab.CD ab CD
ab@CD ab__CD -
ab@CD.EF ab__CD EF
ab_CD.EF@GH ab_CD_GH EF
Some 'improper' ways to do the same as above:
! ab_CD@GH.EF ab_CD_GH EF
! ab_CD.EF@GH.IJ ab_CD_GH EF
! ab_CD@ZZ.EF@GH.IJ ab_CD_GH EF
_CD@GH _CD_GH -
_CD.EF@GH _CD_GH EF
The variant cannot have dots in it.
The 'rightmost' variant (@xxx) wins.
The leftmost codepage (.xxx) wins.
*/
char *correctedPOSIXLocale = 0;
const char* posixID = uprv_getPOSIXID();
const char *p;
const char *q;
int32_t len;
/* Format: (no spaces)
ll [ _CC ] [ . MM ] [ @ VV]
l = lang, C = ctry, M = charmap, V = variant
*/
if((p = uprv_strchr(posixID, '.')) != NULL)
@ -1098,10 +1125,15 @@ uprv_getDefaultLocaleID()
uprv_strncpy(correctedPOSIXLocale, posixID, p-posixID);
correctedPOSIXLocale[p-posixID] = 0;
posixID = correctedPOSIXLocale;
/* do not copy after the @ */
if((p = uprv_strchr(correctedPOSIXLocale, '@')) != NULL)
{
correctedPOSIXLocale[p-correctedPOSIXLocale] = 0;
}
}
if((p = uprv_strchr(posixID, '@')) != NULL)
/* Note that we scan the *uncorrected* ID. */
if((p = uprv_strrchr(posixID, '@')) != NULL)
{
if(correctedPOSIXLocale == NULL) {
correctedPOSIXLocale = uprv_malloc(uprv_strlen(posixID));
@ -1126,13 +1158,28 @@ uprv_getDefaultLocaleID()
uprv_strcat(correctedPOSIXLocale, "__"); /* aa@b -> aa__b */
else
uprv_strcat(correctedPOSIXLocale, "_"); /* aa_CC@b -> aa_CC_b */
uprv_strcat(correctedPOSIXLocale, p);
if(q = uprv_strchr(p, '.'))
{
/* How big will the resulting string be? */
len = uprv_strlen(correctedPOSIXLocale) + (q-p);
uprv_strncat(correctedPOSIXLocale, p, q-p);
correctedPOSIXLocale[len] = 0;
}
else
{
uprv_strcat(correctedPOSIXLocale, p); /* Anything following the @ sign */
}
/* Should there be a map from 'no@nynorsk' -> no_NO_NY here?
How about 'russian' -> 'ru'?
*/
}
posixID = correctedPOSIXLocale;
/* Was a correction made? */
if(correctedPOSIXLocale != NULL)
{
posixID = correctedPOSIXLocale;
}
return posixID;