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-rw-r--r--generic/tclUtf.c202
1 files changed, 115 insertions, 87 deletions
diff --git a/generic/tclUtf.c b/generic/tclUtf.c
index 3c86e1b..15529c7 100644
--- a/generic/tclUtf.c
+++ b/generic/tclUtf.c
@@ -7,8 +7,6 @@
*
* See the file "license.terms" for information on usage and redistribution of
* this file, and for a DISCLAIMER OF ALL WARRANTIES.
- *
- * RCS: @(#) $Id: tclUtf.c,v 1.37 2005/10/31 15:59:41 dkf Exp $
*/
#include "tclInt.h"
@@ -28,28 +26,27 @@
#define ALPHA_BITS ((1 << UPPERCASE_LETTER) | (1 << LOWERCASE_LETTER) \
| (1 << TITLECASE_LETTER) | (1 << MODIFIER_LETTER) | (1<<OTHER_LETTER))
+#define CONTROL_BITS ((1 << CONTROL) | (1 << FORMAT) | (1 << PRIVATE_USE))
+
#define DIGIT_BITS (1 << DECIMAL_DIGIT_NUMBER)
#define SPACE_BITS ((1 << SPACE_SEPARATOR) | (1 << LINE_SEPARATOR) \
| (1 << PARAGRAPH_SEPARATOR))
-#define CONNECTOR_BITS (1 << CONNECTOR_PUNCTUATION)
-
-#define PRINT_BITS (ALPHA_BITS | DIGIT_BITS | SPACE_BITS | \
- (1 << NON_SPACING_MARK) | (1 << ENCLOSING_MARK) | \
- (1 << COMBINING_SPACING_MARK) | (1 << LETTER_NUMBER) | \
- (1 << OTHER_NUMBER) | (1 << CONNECTOR_PUNCTUATION) | \
- (1 << DASH_PUNCTUATION) | (1 << OPEN_PUNCTUATION) | \
- (1 << CLOSE_PUNCTUATION) | (1 << INITIAL_QUOTE_PUNCTUATION) | \
- (1 << FINAL_QUOTE_PUNCTUATION) | (1 << OTHER_PUNCTUATION) | \
- (1 << MATH_SYMBOL) | (1 << CURRENCY_SYMBOL) | \
- (1 << MODIFIER_SYMBOL) | (1 << OTHER_SYMBOL))
+#define WORD_BITS (ALPHA_BITS | DIGIT_BITS | (1 << CONNECTOR_PUNCTUATION))
#define PUNCT_BITS ((1 << CONNECTOR_PUNCTUATION) | \
(1 << DASH_PUNCTUATION) | (1 << OPEN_PUNCTUATION) | \
(1 << CLOSE_PUNCTUATION) | (1 << INITIAL_QUOTE_PUNCTUATION) | \
(1 << FINAL_QUOTE_PUNCTUATION) | (1 << OTHER_PUNCTUATION))
+#define GRAPH_BITS (WORD_BITS | PUNCT_BITS | \
+ (1 << NON_SPACING_MARK) | (1 << ENCLOSING_MARK) | \
+ (1 << COMBINING_SPACING_MARK) | (1 << LETTER_NUMBER) | \
+ (1 << OTHER_NUMBER) | \
+ (1 << MATH_SYMBOL) | (1 << CURRENCY_SYMBOL) | \
+ (1 << MODIFIER_SYMBOL) | (1 << OTHER_SYMBOL))
+
/*
* Unicode characters less than this value are represented by themselves in
* UTF-8 strings.
@@ -62,7 +59,7 @@
* UTF-8.
*/
-static CONST unsigned char totalBytes[256] = {
+static const unsigned char totalBytes[256] = {
1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,
1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,
1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,
@@ -234,13 +231,13 @@ Tcl_UniCharToUtf(
char *
Tcl_UniCharToUtfDString(
- CONST Tcl_UniChar *uniStr, /* Unicode string to convert to UTF-8. */
+ const Tcl_UniChar *uniStr, /* Unicode string to convert to UTF-8. */
int uniLength, /* Length of Unicode string in Tcl_UniChars
* (must be >= 0). */
Tcl_DString *dsPtr) /* UTF-8 representation of string is appended
* to this previously initialized DString. */
{
- CONST Tcl_UniChar *w, *wEnd;
+ const Tcl_UniChar *w, *wEnd;
char *p, *string;
int oldLength;
@@ -292,7 +289,7 @@ Tcl_UniCharToUtfDString(
int
Tcl_UtfToUniChar(
- register CONST char *src, /* The UTF-8 string. */
+ register const char *src, /* The UTF-8 string. */
register Tcl_UniChar *chPtr)/* Filled with the Tcl_UniChar represented by
* the UTF-8 string. */
{
@@ -396,7 +393,7 @@ Tcl_UtfToUniChar(
Tcl_UniChar *
Tcl_UtfToUniCharDString(
- CONST char *src, /* UTF-8 string to convert to Unicode. */
+ const char *src, /* UTF-8 string to convert to Unicode. */
int length, /* Length of UTF-8 string in bytes, or -1 for
* strlen(). */
Tcl_DString *dsPtr) /* Unicode representation of string is
@@ -404,7 +401,7 @@ Tcl_UtfToUniCharDString(
* DString. */
{
Tcl_UniChar *w, *wString;
- CONST char *p, *end;
+ const char *p, *end;
int oldLength;
if (length < 0) {
@@ -417,6 +414,7 @@ Tcl_UtfToUniCharDString(
*/
oldLength = Tcl_DStringLength(dsPtr);
+/* TODO: fix overreach! */
Tcl_DStringSetLength(dsPtr,
(int) ((oldLength + length + 1) * sizeof(Tcl_UniChar)));
wString = (Tcl_UniChar *) (Tcl_DStringValue(dsPtr) + oldLength);
@@ -455,7 +453,7 @@ Tcl_UtfToUniCharDString(
int
Tcl_UtfCharComplete(
- CONST char *src, /* String to check if first few bytes contain
+ const char *src, /* String to check if first few bytes contain
* a complete UTF-8 character. */
int length) /* Length of above string in bytes. */
{
@@ -485,7 +483,7 @@ Tcl_UtfCharComplete(
int
Tcl_NumUtfChars(
- register CONST char *src, /* The UTF-8 string to measure. */
+ register const char *src, /* The UTF-8 string to measure. */
int length) /* The length of the string in bytes, or -1
* for strlen(string). */
{
@@ -543,9 +541,9 @@ Tcl_NumUtfChars(
*---------------------------------------------------------------------------
*/
-CONST char *
+const char *
Tcl_UtfFindFirst(
- CONST char *src, /* The UTF-8 string to be searched. */
+ const char *src, /* The UTF-8 string to be searched. */
int ch) /* The Tcl_UniChar to search for. */
{
int len;
@@ -582,14 +580,14 @@ Tcl_UtfFindFirst(
*---------------------------------------------------------------------------
*/
-CONST char *
+const char *
Tcl_UtfFindLast(
- CONST char *src, /* The UTF-8 string to be searched. */
+ const char *src, /* The UTF-8 string to be searched. */
int ch) /* The Tcl_UniChar to search for. */
{
int len;
Tcl_UniChar find;
- CONST char *last;
+ const char *last;
last = NULL;
while (1) {
@@ -624,9 +622,9 @@ Tcl_UtfFindLast(
*---------------------------------------------------------------------------
*/
-CONST char *
+const char *
Tcl_UtfNext(
- CONST char *src) /* The current location in the string. */
+ const char *src) /* The current location in the string. */
{
Tcl_UniChar ch;
@@ -654,13 +652,13 @@ Tcl_UtfNext(
*---------------------------------------------------------------------------
*/
-CONST char *
+const char *
Tcl_UtfPrev(
- CONST char *src, /* The current location in the string. */
- CONST char *start) /* Pointer to the beginning of the string, to
+ const char *src, /* The current location in the string. */
+ const char *start) /* Pointer to the beginning of the string, to
* avoid going backwards too far. */
{
- CONST char *look;
+ const char *look;
int i, byte;
src--;
@@ -703,10 +701,10 @@ Tcl_UtfPrev(
Tcl_UniChar
Tcl_UniCharAtIndex(
- register CONST char *src, /* The UTF-8 string to dereference. */
+ register const char *src, /* The UTF-8 string to dereference. */
register int index) /* The position of the desired character. */
{
- Tcl_UniChar ch;
+ Tcl_UniChar ch = 0;
while (index >= 0) {
index--;
@@ -732,9 +730,9 @@ Tcl_UniCharAtIndex(
*---------------------------------------------------------------------------
*/
-CONST char *
+const char *
Tcl_UtfAtIndex(
- register CONST char *src, /* The UTF-8 string. */
+ register const char *src, /* The UTF-8 string. */
register int index) /* The position of the desired character. */
{
Tcl_UniChar ch;
@@ -774,7 +772,7 @@ Tcl_UtfAtIndex(
int
Tcl_UtfBackslash(
- CONST char *src, /* Points to the backslash character of a
+ const char *src, /* Points to the backslash character of a
* backslash sequence. */
int *readPtr, /* Fill in with number of characters read from
* src, unless NULL. */
@@ -986,8 +984,8 @@ Tcl_UtfToTitle(
int
TclpUtfNcmp2(
- CONST char *cs, /* UTF string to compare to ct. */
- CONST char *ct, /* UTF string cs is compared to. */
+ const char *cs, /* UTF string to compare to ct. */
+ const char *ct, /* UTF string cs is compared to. */
unsigned long numBytes) /* Number of *bytes* to compare. */
{
/*
@@ -1033,8 +1031,8 @@ TclpUtfNcmp2(
int
Tcl_UtfNcmp(
- CONST char *cs, /* UTF string to compare to ct. */
- CONST char *ct, /* UTF string cs is compared to. */
+ const char *cs, /* UTF string to compare to ct. */
+ const char *ct, /* UTF string cs is compared to. */
unsigned long numChars) /* Number of UTF chars to compare. */
{
Tcl_UniChar ch1, ch2;
@@ -1081,8 +1079,8 @@ Tcl_UtfNcmp(
int
Tcl_UtfNcasecmp(
- CONST char *cs, /* UTF string to compare to ct. */
- CONST char *ct, /* UTF string cs is compared to. */
+ const char *cs, /* UTF string to compare to ct. */
+ const char *ct, /* UTF string cs is compared to. */
unsigned long numChars) /* Number of UTF chars to compare. */
{
Tcl_UniChar ch1, ch2;
@@ -1108,6 +1106,46 @@ Tcl_UtfNcasecmp(
/*
*----------------------------------------------------------------------
*
+ * Tcl_UtfNcasecmp --
+ *
+ * Compare UTF chars of string cs to string ct case insensitively.
+ * Replacement for strcasecmp in Tcl core, in places where UTF-8 should
+ * be handled.
+ *
+ * Results:
+ * Return <0 if cs < ct, 0 if cs == ct, or >0 if cs > ct.
+ *
+ * Side effects:
+ * None.
+ *
+ *----------------------------------------------------------------------
+ */
+
+int
+TclUtfCasecmp(
+ const char *cs, /* UTF string to compare to ct. */
+ const char *ct) /* UTF string cs is compared to. */
+{
+ while (*cs && *ct) {
+ Tcl_UniChar ch1, ch2;
+
+ cs += TclUtfToUniChar(cs, &ch1);
+ ct += TclUtfToUniChar(ct, &ch2);
+ if (ch1 != ch2) {
+ ch1 = Tcl_UniCharToLower(ch1);
+ ch2 = Tcl_UniCharToLower(ch2);
+ if (ch1 != ch2) {
+ return ch1 - ch2;
+ }
+ }
+ }
+ return UCHAR(*cs) - UCHAR(*ct);
+}
+
+
+/*
+ *----------------------------------------------------------------------
+ *
* Tcl_UniCharToUpper --
*
* Compute the uppercase equivalent of the given Unicode character.
@@ -1128,10 +1166,9 @@ Tcl_UniCharToUpper(
int info = GetUniCharInfo(ch);
if (GetCaseType(info) & 0x04) {
- return (Tcl_UniChar) (ch - GetDelta(info));
- } else {
- return ch;
+ ch -= GetDelta(info);
}
+ return (Tcl_UniChar) ch;
}
/*
@@ -1157,10 +1194,9 @@ Tcl_UniCharToLower(
int info = GetUniCharInfo(ch);
if (GetCaseType(info) & 0x02) {
- return (Tcl_UniChar) (ch + GetDelta(info));
- } else {
- return ch;
+ ch += GetDelta(info);
}
+ return (Tcl_UniChar) ch;
}
/*
@@ -1191,12 +1227,11 @@ Tcl_UniCharToTitle(
* Subtract or add one depending on the original case.
*/
- return (Tcl_UniChar) (ch + ((mode & 0x4) ? -1 : 1));
+ ch += ((mode & 0x4) ? -1 : 1);
} else if (mode == 0x4) {
- return (Tcl_UniChar) (ch - GetDelta(info));
- } else {
- return ch;
+ ch -= GetDelta(info);
}
+ return (Tcl_UniChar) ch;
}
/*
@@ -1218,7 +1253,7 @@ Tcl_UniCharToTitle(
int
Tcl_UniCharLen(
- CONST Tcl_UniChar *uniStr) /* Unicode string to find length of. */
+ const Tcl_UniChar *uniStr) /* Unicode string to find length of. */
{
int len = 0;
@@ -1248,8 +1283,8 @@ Tcl_UniCharLen(
int
Tcl_UniCharNcmp(
- CONST Tcl_UniChar *ucs, /* Unicode string to compare to uct. */
- CONST Tcl_UniChar *uct, /* Unicode string ucs is compared to. */
+ const Tcl_UniChar *ucs, /* Unicode string to compare to uct. */
+ const Tcl_UniChar *uct, /* Unicode string ucs is compared to. */
unsigned long numChars) /* Number of unichars to compare. */
{
#ifdef WORDS_BIGENDIAN
@@ -1293,8 +1328,8 @@ Tcl_UniCharNcmp(
int
Tcl_UniCharNcasecmp(
- CONST Tcl_UniChar *ucs, /* Unicode string to compare to uct. */
- CONST Tcl_UniChar *uct, /* Unicode string ucs is compared to. */
+ const Tcl_UniChar *ucs, /* Unicode string to compare to uct. */
+ const Tcl_UniChar *uct, /* Unicode string ucs is compared to. */
unsigned long numChars) /* Number of unichars to compare. */
{
for ( ; numChars != 0; numChars--, ucs++, uct++) {
@@ -1330,9 +1365,7 @@ int
Tcl_UniCharIsAlnum(
int ch) /* Unicode character to test. */
{
- register int category = (GetUniCharInfo(ch) & UNICODE_CATEGORY_MASK);
-
- return (((ALPHA_BITS | DIGIT_BITS) >> category) & 1);
+ return (((ALPHA_BITS | DIGIT_BITS) >> GetCategory(ch)) & 1);
}
/*
@@ -1355,8 +1388,7 @@ int
Tcl_UniCharIsAlpha(
int ch) /* Unicode character to test. */
{
- register int category = (GetUniCharInfo(ch) & UNICODE_CATEGORY_MASK);
- return ((ALPHA_BITS >> category) & 1);
+ return ((ALPHA_BITS >> GetCategory(ch)) & 1);
}
/*
@@ -1379,7 +1411,7 @@ int
Tcl_UniCharIsControl(
int ch) /* Unicode character to test. */
{
- return ((GetUniCharInfo(ch) & UNICODE_CATEGORY_MASK) == CONTROL);
+ return ((CONTROL_BITS >> GetCategory(ch)) & 1);
}
/*
@@ -1402,7 +1434,7 @@ int
Tcl_UniCharIsDigit(
int ch) /* Unicode character to test. */
{
- return (GetUniCharInfo(ch)&UNICODE_CATEGORY_MASK) == DECIMAL_DIGIT_NUMBER;
+ return (GetCategory(ch) == DECIMAL_DIGIT_NUMBER);
}
/*
@@ -1425,8 +1457,7 @@ int
Tcl_UniCharIsGraph(
int ch) /* Unicode character to test. */
{
- register int category = (GetUniCharInfo(ch) & UNICODE_CATEGORY_MASK);
- return (((PRINT_BITS >> category) & 1) && ((unsigned char) ch != ' '));
+ return ((GRAPH_BITS >> GetCategory(ch)) & 1);
}
/*
@@ -1449,7 +1480,7 @@ int
Tcl_UniCharIsLower(
int ch) /* Unicode character to test. */
{
- return ((GetUniCharInfo(ch) & UNICODE_CATEGORY_MASK) == LOWERCASE_LETTER);
+ return (GetCategory(ch) == LOWERCASE_LETTER);
}
/*
@@ -1472,8 +1503,7 @@ int
Tcl_UniCharIsPrint(
int ch) /* Unicode character to test. */
{
- register int category = (GetUniCharInfo(ch) & UNICODE_CATEGORY_MASK);
- return ((PRINT_BITS >> category) & 1);
+ return (((GRAPH_BITS|SPACE_BITS) >> GetCategory(ch)) & 1);
}
/*
@@ -1496,8 +1526,7 @@ int
Tcl_UniCharIsPunct(
int ch) /* Unicode character to test. */
{
- register int category = (GetUniCharInfo(ch) & UNICODE_CATEGORY_MASK);
- return ((PUNCT_BITS >> category) & 1);
+ return ((PUNCT_BITS >> GetCategory(ch)) & 1);
}
/*
@@ -1520,18 +1549,19 @@ int
Tcl_UniCharIsSpace(
int ch) /* Unicode character to test. */
{
- register int category;
-
/*
* If the character is within the first 127 characters, just use the
* standard C function, otherwise consult the Unicode table.
*/
- if (ch < 0x80) {
- return isspace(UCHAR(ch)); /* INTL: ISO space */
+ if (((Tcl_UniChar) ch) < ((Tcl_UniChar) 0x80)) {
+ return TclIsSpaceProc((char) ch);
+ } else if ((Tcl_UniChar) ch == 0x0085 || (Tcl_UniChar) ch == 0x180e
+ || (Tcl_UniChar) ch == 0x200b || (Tcl_UniChar) ch == 0x2060
+ || (Tcl_UniChar) ch == 0x202f || (Tcl_UniChar) ch == 0xfeff) {
+ return 1;
} else {
- category = (GetUniCharInfo(ch) & UNICODE_CATEGORY_MASK);
- return ((SPACE_BITS >> category) & 1);
+ return ((SPACE_BITS >> GetCategory(ch)) & 1);
}
}
@@ -1555,7 +1585,7 @@ int
Tcl_UniCharIsUpper(
int ch) /* Unicode character to test. */
{
- return ((GetUniCharInfo(ch) & UNICODE_CATEGORY_MASK) == UPPERCASE_LETTER);
+ return (GetCategory(ch) == UPPERCASE_LETTER);
}
/*
@@ -1578,9 +1608,7 @@ int
Tcl_UniCharIsWordChar(
int ch) /* Unicode character to test. */
{
- register int category = (GetUniCharInfo(ch) & UNICODE_CATEGORY_MASK);
-
- return (((ALPHA_BITS | DIGIT_BITS | CONNECTOR_BITS) >> category) & 1);
+ return ((WORD_BITS >> GetCategory(ch)) & 1);
}
/*
@@ -1608,8 +1636,8 @@ Tcl_UniCharIsWordChar(
int
Tcl_UniCharCaseMatch(
- CONST Tcl_UniChar *uniStr, /* Unicode String. */
- CONST Tcl_UniChar *uniPattern,
+ const Tcl_UniChar *uniStr, /* Unicode String. */
+ const Tcl_UniChar *uniPattern,
/* Pattern, which may contain special
* characters. */
int nocase) /* 0 for case sensitive, 1 for insensitive */
@@ -1796,14 +1824,14 @@ Tcl_UniCharCaseMatch(
int
TclUniCharMatch(
- CONST Tcl_UniChar *string, /* Unicode String. */
+ const Tcl_UniChar *string, /* Unicode String. */
int strLen, /* Length of String */
- CONST Tcl_UniChar *pattern, /* Pattern, which may contain special
+ const Tcl_UniChar *pattern, /* Pattern, which may contain special
* characters. */
int ptnLen, /* Length of Pattern */
int nocase) /* 0 for case sensitive, 1 for insensitive */
{
- CONST Tcl_UniChar *stringEnd, *patternEnd;
+ const Tcl_UniChar *stringEnd, *patternEnd;
Tcl_UniChar p;
stringEnd = string + strLen;
generated by cgit v0.12 at 2025-10-18 16:09:16 (GMT)