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#5127: Even on narrow unicode builds, the C functions that access the Unicode

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Database (Py_UNICODE_TOLOWER, Py_UNICODE_ISDECIMAL, and others) now accept
and return characters from the full Unicode range (Py_UCS4).

The differences from Python code are few:
- unicodedata.numeric(), unicodedata.decimal() and unicodedata.digit()
  now return the correct value for large code points
- repr() may consider more characters as printable.
This commit is contained in:
Amaury Forgeot d'Arc 2010-08-18 20:44:58 +00:00
parent 36e778ef02
commit 324ac65ceb
7 changed files with 69 additions and 232 deletions
Download patch file Download diff file Expand all files Collapse all files

50
Objects/unicodectype.c
View file

@ -26,9 +26,9 @@
#define NUMERIC_MASK 0x1000
typedef struct {
const Py_UNICODE upper;
const Py_UNICODE lower;
const Py_UNICODE title;
const Py_UCS4 upper;
const Py_UCS4 lower;
const Py_UCS4 title;
const unsigned char decimal;
const unsigned char digit;
const unsigned short flags;
@ -37,15 +37,13 @@ typedef struct {
#include "unicodetype_db.h"
static const _PyUnicode_TypeRecord *
gettyperecord(Py_UNICODE code)
gettyperecord(Py_UCS4 code)
{
int index;
#ifdef Py_UNICODE_WIDE
if (code >= 0x110000)
index = 0;
else
#endif
{
index = index1[(code>>SHIFT)];
index = index2[(index<<SHIFT)+(code&((1<<SHIFT)-1))];
@ -57,7 +55,7 @@ gettyperecord(Py_UNICODE code)
/* Returns the titlecase Unicode characters corresponding to ch or just
ch if no titlecase mapping is known. */
Py_UNICODE _PyUnicode_ToTitlecase(register Py_UNICODE ch)
Py_UCS4 _PyUnicode_ToTitlecase(register Py_UCS4 ch)
{
const _PyUnicode_TypeRecord *ctype = gettyperecord(ch);
int delta = ctype->title;
@ -74,7 +72,7 @@ Py_UNICODE _PyUnicode_ToTitlecase(register Py_UNICODE ch)
/* Returns 1 for Unicode characters having the category 'Lt', 0
otherwise. */
int _PyUnicode_IsTitlecase(Py_UNICODE ch)
int _PyUnicode_IsTitlecase(Py_UCS4 ch)
{
const _PyUnicode_TypeRecord *ctype = gettyperecord(ch);
@ -84,7 +82,7 @@ int _PyUnicode_IsTitlecase(Py_UNICODE ch)
/* Returns 1 for Unicode characters having the XID_Start property, 0
otherwise. */
int _PyUnicode_IsXidStart(Py_UNICODE ch)
int _PyUnicode_IsXidStart(Py_UCS4 ch)
{
const _PyUnicode_TypeRecord *ctype = gettyperecord(ch);
@ -94,7 +92,7 @@ int _PyUnicode_IsXidStart(Py_UNICODE ch)
/* Returns 1 for Unicode characters having the XID_Continue property,
0 otherwise. */
int _PyUnicode_IsXidContinue(Py_UNICODE ch)
int _PyUnicode_IsXidContinue(Py_UCS4 ch)
{
const _PyUnicode_TypeRecord *ctype = gettyperecord(ch);
@ -104,14 +102,14 @@ int _PyUnicode_IsXidContinue(Py_UNICODE ch)
/* Returns the integer decimal (0-9) for Unicode characters having
this property, -1 otherwise. */
int _PyUnicode_ToDecimalDigit(Py_UNICODE ch)
int _PyUnicode_ToDecimalDigit(Py_UCS4 ch)
{
const _PyUnicode_TypeRecord *ctype = gettyperecord(ch);
return (ctype->flags & DECIMAL_MASK) ? ctype->decimal : -1;
}
int _PyUnicode_IsDecimalDigit(Py_UNICODE ch)
int _PyUnicode_IsDecimalDigit(Py_UCS4 ch)
{
if (_PyUnicode_ToDecimalDigit(ch) < 0)
return 0;
@ -121,14 +119,14 @@ int _PyUnicode_IsDecimalDigit(Py_UNICODE ch)
/* Returns the integer digit (0-9) for Unicode characters having
this property, -1 otherwise. */
int _PyUnicode_ToDigit(Py_UNICODE ch)
int _PyUnicode_ToDigit(Py_UCS4 ch)
{
const _PyUnicode_TypeRecord *ctype = gettyperecord(ch);
return (ctype->flags & DIGIT_MASK) ? ctype->digit : -1;
}
int _PyUnicode_IsDigit(Py_UNICODE ch)
int _PyUnicode_IsDigit(Py_UCS4 ch)
{
if (_PyUnicode_ToDigit(ch) < 0)
return 0;
@ -138,7 +136,7 @@ int _PyUnicode_IsDigit(Py_UNICODE ch)
/* Returns the numeric value as double for Unicode characters having
this property, -1.0 otherwise. */
int _PyUnicode_IsNumeric(Py_UNICODE ch)
int _PyUnicode_IsNumeric(Py_UCS4 ch)
{
const _PyUnicode_TypeRecord *ctype = gettyperecord(ch);
@ -158,7 +156,7 @@ int _PyUnicode_IsNumeric(Py_UNICODE ch)
* Zp Separator, Paragraph ('\u2029', PARAGRAPH SEPARATOR)
* Zs (Separator, Space) other than ASCII space('\x20').
*/
int _PyUnicode_IsPrintable(Py_UNICODE ch)
int _PyUnicode_IsPrintable(Py_UCS4 ch)
{
const _PyUnicode_TypeRecord *ctype = gettyperecord(ch);
@ -170,7 +168,7 @@ int _PyUnicode_IsPrintable(Py_UNICODE ch)
/* Returns 1 for Unicode characters having the category 'Ll', 0
otherwise. */
int _PyUnicode_IsLowercase(Py_UNICODE ch)
int _PyUnicode_IsLowercase(Py_UCS4 ch)
{
const _PyUnicode_TypeRecord *ctype = gettyperecord(ch);
@ -180,7 +178,7 @@ int _PyUnicode_IsLowercase(Py_UNICODE ch)
/* Returns 1 for Unicode characters having the category 'Lu', 0
otherwise. */
int _PyUnicode_IsUppercase(Py_UNICODE ch)
int _PyUnicode_IsUppercase(Py_UCS4 ch)
{
const _PyUnicode_TypeRecord *ctype = gettyperecord(ch);
@ -190,7 +188,7 @@ int _PyUnicode_IsUppercase(Py_UNICODE ch)
/* Returns the uppercase Unicode characters corresponding to ch or just
ch if no uppercase mapping is known. */
Py_UNICODE _PyUnicode_ToUppercase(Py_UNICODE ch)
Py_UCS4 _PyUnicode_ToUppercase(Py_UCS4 ch)
{
const _PyUnicode_TypeRecord *ctype = gettyperecord(ch);
int delta = ctype->upper;
@ -204,7 +202,7 @@ Py_UNICODE _PyUnicode_ToUppercase(Py_UNICODE ch)
/* Returns the lowercase Unicode characters corresponding to ch or just
ch if no lowercase mapping is known. */
Py_UNICODE _PyUnicode_ToLowercase(Py_UNICODE ch)
Py_UCS4 _PyUnicode_ToLowercase(Py_UCS4 ch)
{
const _PyUnicode_TypeRecord *ctype = gettyperecord(ch);
int delta = ctype->lower;
@ -218,7 +216,7 @@ Py_UNICODE _PyUnicode_ToLowercase(Py_UNICODE ch)
/* Returns 1 for Unicode characters having the category 'Ll', 'Lu', 'Lt',
'Lo' or 'Lm', 0 otherwise. */
int _PyUnicode_IsAlpha(Py_UNICODE ch)
int _PyUnicode_IsAlpha(Py_UCS4 ch)
{
const _PyUnicode_TypeRecord *ctype = gettyperecord(ch);
@ -230,27 +228,27 @@ int _PyUnicode_IsAlpha(Py_UNICODE ch)
/* Export the interfaces using the wchar_t type for portability
reasons: */
int _PyUnicode_IsLowercase(Py_UNICODE ch)
int _PyUnicode_IsLowercase(Py_UCS4 ch)
{
return iswlower(ch);
}
int _PyUnicode_IsUppercase(Py_UNICODE ch)
int _PyUnicode_IsUppercase(Py_UCS4 ch)
{
return iswupper(ch);
}
Py_UNICODE _PyUnicode_ToLowercase(Py_UNICODE ch)
Py_UCS4 _PyUnicode_ToLowercase(Py_UCS4 ch)
{
return towlower(ch);
}
Py_UNICODE _PyUnicode_ToUppercase(Py_UNICODE ch)
Py_UCS4 _PyUnicode_ToUppercase(Py_UCS4 ch)
{
return towupper(ch);
}
int _PyUnicode_IsAlpha(Py_UNICODE ch)
int _PyUnicode_IsAlpha(Py_UCS4 ch)
{
return iswalpha(ch);
}