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-rw-r--r--wcsmbs/mbrtowc.c7
-rw-r--r--wcsmbs/mbsnrtowcs.c112
-rw-r--r--wcsmbs/mbsrtowcs.c7
-rw-r--r--wcsmbs/wcrtomb.c9
-rw-r--r--wcsmbs/wcsnrtombs.c7
-rw-r--r--wcsmbs/wcsrtombs.c11
-rw-r--r--wcsmbs/wmemrtombs.c7
-rw-r--r--wcsmbs/wmemrtowcs.c111
8 files changed, 172 insertions, 99 deletions
diff --git a/wcsmbs/mbrtowc.c b/wcsmbs/mbrtowc.c
index 8b4dbe2912..cf0bbd6ce2 100644
--- a/wcsmbs/mbrtowc.c
+++ b/wcsmbs/mbrtowc.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1996 Free Software Foundation, Inc.
+/* Copyright (C) 1996, 1997 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, 1996.
@@ -38,9 +38,8 @@ __mbrtowc (wchar_t *pwc, const char *s, size_t n, mbstate_t *ps)
if (s == NULL)
{
/* See first paragraph of description in 7.16.6.3.2. */
- pwc = NULL;
- s = "";
- n = 1;
+ ps->count = 0;
+ return 0;
}
if (n > 0)
diff --git a/wcsmbs/mbsnrtowcs.c b/wcsmbs/mbsnrtowcs.c
index bb79a30ed2..db67d5c1bb 100644
--- a/wcsmbs/mbsnrtowcs.c
+++ b/wcsmbs/mbsnrtowcs.c
@@ -43,10 +43,16 @@ __mbsnrtowcs (dst, src, nmc, len, ps)
size_t written = 0;
const char *run = *src;
const char *last = run + nmc;
+ wchar_t value;
+ size_t count;
if (ps == NULL)
ps = &internal;
+ /* Get information from last use of this state. */
+ count = ps->count;
+ value = ps->value;
+
if (dst == NULL)
/* The LEN parameter has to be ignored if we don't actually write
anything. */
@@ -55,57 +61,66 @@ __mbsnrtowcs (dst, src, nmc, len, ps)
/* Copy all words. */
while (written < len && run < last)
{
- wchar_t value;
- size_t count;
- unsigned char byte = *run++;
+ unsigned char byte;
- /* We expect a start of a new multibyte character. */
- if (byte < 0x80)
- {
- /* One byte sequence. */
- count = 0;
- value = byte;
- }
- else if ((byte & 0xe0) == 0xc0)
- {
- count = 1;
- value = byte & 0x1f;
- }
- else if ((byte & 0xf0) == 0xe0)
- {
- /* We expect three bytes. */
- count = 2;
- value = byte & 0x0f;
- }
- else if ((byte & 0xf8) == 0xf0)
- {
- /* We expect four bytes. */
- count = 3;
- value = byte & 0x07;
- }
- else if ((byte & 0xfc) == 0xf8)
- {
- /* We expect five bytes. */
- count = 4;
- value = byte & 0x03;
- }
- else if ((byte & 0xfe) == 0xfc)
- {
- /* We expect six bytes. */
- count = 5;
- value = byte & 0x01;
- }
- else
+ /* Store address of next byte to process. */
+ *src = run;
+
+ /* Start reading a new character only if we are in the initial
+ state. */
+ if (count == 0)
{
- /* This is an illegal encoding. */
- __set_errno (EILSEQ);
- return (size_t) -1;
+ byte = *run++;
+
+ /* We expect a start of a new multibyte character. */
+ if (byte < 0x80)
+ {
+ /* One byte sequence. */
+ count = 0;
+ value = byte;
+ }
+ else if ((byte & 0xe0) == 0xc0)
+ {
+ count = 1;
+ value = byte & 0x1f;
+ }
+ else if ((byte & 0xf0) == 0xe0)
+ {
+ /* We expect three bytes. */
+ count = 2;
+ value = byte & 0x0f;
+ }
+ else if ((byte & 0xf8) == 0xf0)
+ {
+ /* We expect four bytes. */
+ count = 3;
+ value = byte & 0x07;
+ }
+ else if ((byte & 0xfc) == 0xf8)
+ {
+ /* We expect five bytes. */
+ count = 4;
+ value = byte & 0x03;
+ }
+ else if ((byte & 0xfe) == 0xfc)
+ {
+ /* We expect six bytes. */
+ count = 5;
+ value = byte & 0x01;
+ }
+ else
+ {
+ /* This is an illegal encoding. */
+ __set_errno (EILSEQ);
+ return (size_t) -1;
+ }
}
/* Read the possible remaining bytes. */
- while (count-- > 0)
+ while (run < last && count > 0)
{
byte = *run++;
+ --count;
if ((byte & 0xc0) != 0x80)
{
@@ -118,6 +133,14 @@ __mbsnrtowcs (dst, src, nmc, len, ps)
value |= byte & 0x3f;
}
+ /* If this character is only partially available remember this. */
+ if (run == last && count != 0)
+ {
+ ps->count = count;
+ ps->value = value;
+ break;
+ }
+
/* Store value is required. */
if (dst != NULL)
*dst++ = value;
@@ -128,6 +151,7 @@ __mbsnrtowcs (dst, src, nmc, len, ps)
{
/* Found the end of the string. */
*src = NULL;
+ ps->count = 0;
return written;
}
diff --git a/wcsmbs/mbsrtowcs.c b/wcsmbs/mbsrtowcs.c
index 7ae30b4870..84d4cbf66d 100644
--- a/wcsmbs/mbsrtowcs.c
+++ b/wcsmbs/mbsrtowcs.c
@@ -52,7 +52,12 @@ __mbsrtowcs (dst, src, len, ps)
{
wchar_t value;
size_t count;
- unsigned char byte = *run++;
+ unsigned char byte;
+
+ /* Store address of next byte to process. */
+ *src = run;
+
+ byte = *run++;
/* We expect a start of a new multibyte character. */
if (byte < 0x80)
diff --git a/wcsmbs/wcrtomb.c b/wcsmbs/wcrtomb.c
index c5b887dce9..69c67705c3 100644
--- a/wcsmbs/wcrtomb.c
+++ b/wcsmbs/wcrtomb.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1996 Free Software Foundation, Inc.
+/* Copyright (C) 1996, 1997 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, 1996.
@@ -48,8 +48,10 @@ __wcrtomb (char *s, wchar_t wc, mbstate_t *ps)
if (s == NULL)
{
- s = fake;
- wc = L'\0';
+ /* This is equivalent to wcrtomb (<<internal>, L'\0', ps). We
+ only have to reset the state. */
+ ps->count = 0;
+ return 1;
}
/* Store the UTF8 representation of WC. */
@@ -65,6 +67,7 @@ __wcrtomb (char *s, wchar_t wc, mbstate_t *ps)
/* It's a one byte sequence. */
if (s != NULL)
*s = (char) wc;
+ ps->count = 0;
return 1;
}
diff --git a/wcsmbs/wcsnrtombs.c b/wcsmbs/wcsnrtombs.c
index ddd4e95057..f6c8048295 100644
--- a/wcsmbs/wcsnrtombs.c
+++ b/wcsmbs/wcsnrtombs.c
@@ -63,7 +63,12 @@ __wcsnrtombs (dst, src, nwc, len, ps)
while (written < len && nwc-- > 0)
{
- wchar_t wc = *run++;
+ wchar_t wc;
+
+ /* Store position of first unprocessed word. */
+ *src = run;
+
+ wc = *run++;
if (wc < 0 || wc > 0x7fffffff)
{
diff --git a/wcsmbs/wcsrtombs.c b/wcsmbs/wcsrtombs.c
index b2c0c73778..cc21a51eb3 100644
--- a/wcsmbs/wcsrtombs.c
+++ b/wcsmbs/wcsrtombs.c
@@ -59,7 +59,12 @@ __wcsrtombs (dst, src, len, ps)
while (written < len)
{
- wchar_t wc = *run++;
+ wchar_t wc;
+
+ /* Store position of first unprocessed word. */
+ *src = run;
+
+ wc = *run++;
if (wc < 0 || wc > 0x7fffffff)
{
@@ -73,6 +78,7 @@ __wcsrtombs (dst, src, len, ps)
/* Found the end. */
if (dst != NULL)
*dst = '\0';
+ ps->count = 0;
*src = NULL;
return written;
}
@@ -120,6 +126,9 @@ __wcsrtombs (dst, src, len, ps)
/* Store position of first unprocessed word. */
*src = run;
+ /* Signal that we finished correctly. */
+ ps->count = 0;
+
return written;
}
weak_alias (__wcsrtombs, wcsrtombs)
diff --git a/wcsmbs/wmemrtombs.c b/wcsmbs/wmemrtombs.c
index 2bbd66788e..5b8e39cbe3 100644
--- a/wcsmbs/wmemrtombs.c
+++ b/wcsmbs/wmemrtombs.c
@@ -63,7 +63,12 @@ __wmemrtombs (dst, src, nwc, len, ps)
while (written < len && nwc-- > 0)
{
- wchar_t wc = *run++;
+ wchar_t wc;
+
+ /* Store position of first unprocessed word. */
+ *src = run;
+
+ wc = *run++;
if (wc < 0 || wc > 0x7fffffff)
{
diff --git a/wcsmbs/wmemrtowcs.c b/wcsmbs/wmemrtowcs.c
index 1686229b8f..4efdd72d2e 100644
--- a/wcsmbs/wmemrtowcs.c
+++ b/wcsmbs/wmemrtowcs.c
@@ -43,10 +43,16 @@ __wmemrtowcs (dst, src, nmc, len, ps)
size_t written = 0;
const char *run = *src;
const char *last = run + nmc;
+ wchar_t value;
+ size_t count;
if (ps == NULL)
ps = &internal;
+ /* Get information from last use of this state. */
+ count = ps->count;
+ value = ps->value;
+
if (dst == NULL)
/* The LEN parameter has to be ignored if we don't actually write
anything. */
@@ -55,57 +61,66 @@ __wmemrtowcs (dst, src, nmc, len, ps)
/* Copy all words. */
while (written < len && run < last)
{
- wchar_t value;
- size_t count;
- unsigned char byte = *run++;
+ unsigned char byte;
- /* We expect a start of a new multibyte character. */
- if (byte < 0x80)
- {
- /* One byte sequence. */
- count = 0;
- value = byte;
- }
- else if ((byte & 0xe0) == 0xc0)
- {
- count = 1;
- value = byte & 0x1f;
- }
- else if ((byte & 0xf0) == 0xe0)
- {
- /* We expect three bytes. */
- count = 2;
- value = byte & 0x0f;
- }
- else if ((byte & 0xf8) == 0xf0)
- {
- /* We expect four bytes. */
- count = 3;
- value = byte & 0x07;
- }
- else if ((byte & 0xfc) == 0xf8)
- {
- /* We expect five bytes. */
- count = 4;
- value = byte & 0x03;
- }
- else if ((byte & 0xfe) == 0xfc)
- {
- /* We expect six bytes. */
- count = 5;
- value = byte & 0x01;
- }
- else
+ /* Store address of next byte to process. */
+ *src = run;
+
+ /* Start reading a new character only if we are in the initial
+ state. */
+ if (count == 0)
{
- /* This is an illegal encoding. */
- __set_errno (EILSEQ);
- return (size_t) -1;
+ byte = *run++;
+
+ /* We expect a start of a new multibyte character. */
+ if (byte < 0x80)
+ {
+ /* One byte sequence. */
+ count = 0;
+ value = byte;
+ }
+ else if ((byte & 0xe0) == 0xc0)
+ {
+ count = 1;
+ value = byte & 0x1f;
+ }
+ else if ((byte & 0xf0) == 0xe0)
+ {
+ /* We expect three bytes. */
+ count = 2;
+ value = byte & 0x0f;
+ }
+ else if ((byte & 0xf8) == 0xf0)
+ {
+ /* We expect four bytes. */
+ count = 3;
+ value = byte & 0x07;
+ }
+ else if ((byte & 0xfc) == 0xf8)
+ {
+ /* We expect five bytes. */
+ count = 4;
+ value = byte & 0x03;
+ }
+ else if ((byte & 0xfe) == 0xfc)
+ {
+ /* We expect six bytes. */
+ count = 5;
+ value = byte & 0x01;
+ }
+ else
+ {
+ /* This is an illegal encoding. */
+ __set_errno (EILSEQ);
+ return (size_t) -1;
+ }
}
/* Read the possible remaining bytes. */
- while (count-- > 0)
+ while (run < last && count > 0)
{
byte = *run++;
+ --count;
if ((byte & 0xc0) != 0x80)
{
@@ -118,6 +133,14 @@ __wmemrtowcs (dst, src, nmc, len, ps)
value |= byte & 0x3f;
}
+ /* If this character is only partially available remember this. */
+ if (run == last && count != 0)
+ {
+ ps->count = count;
+ ps->value = value;
+ break;
+ }
+
/* Store value is required. */
if (dst != NULL)
*dst++ = value;
generated by cgit v1.2.3 (git 2.39.1) at 2024-05-18 10:32:18 +0000