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Bash-4.2 distribution sources and documentation

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This commit is contained in:
Chet Ramey 2011-11-22 19:11:26 -05:00
commit 495aee441b
341 changed files with 108751 additions and 36060 deletions
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34
lib/sh/strtrans.c
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@ -1,6 +1,6 @@
/* strtrans.c - Translate and untranslate strings with ANSI-C escape sequences. */
/* Copyright (C) 2000 Free Software Foundation, Inc.
/* Copyright (C) 2000-2010 Free Software Foundation, Inc.
This file is part of GNU Bash, the Bourne Again SHell.
@ -51,11 +51,16 @@ ansicstr (string, len, flags, sawc, rlen)
{
int c, temp;
char *ret, *r, *s;
unsigned long v;
if (string == 0 || *string == '\0')
return ((char *)NULL);
#if defined (HANDLE_MULTIBYTE)
ret = (char *)xmalloc (4*len + 1);
#else
ret = (char *)xmalloc (2*len + 1); /* 2*len for possible CTLESC */
#endif
for (r = ret, s = string; s && *s; )
{
c = *s++;
@ -128,6 +133,29 @@ ansicstr (string, len, flags, sawc, rlen)
}
c &= 0xFF;
break;
#if defined (HANDLE_MULTIBYTE)
case 'u':
case 'U':
temp = (c == 'u') ? 4 : 8; /* \uNNNN \UNNNNNNNN */
for (v = 0; ISXDIGIT ((unsigned char)*s) && temp--; s++)
v = (v * 16) + HEXVALUE (*s);
if (temp == ((c == 'u') ? 4 : 8))
{
*r++ = '\\'; /* c remains unchanged */
break;
}
else if (v <= UCHAR_MAX)
{
c = v;
break;
}
else
{
temp = u32cconv (v, r);
r += temp;
continue;
}
#endif
case '\\':
break;
case '\'': case '"': case '?':
@ -143,9 +171,13 @@ ansicstr (string, len, flags, sawc, rlen)
*rlen = r - ret;
return ret;
}
else if ((flags & 1) == 0 && *s == 0)
; /* pass \c through */
else if ((flags & 1) == 0 && (c = *s))
{
s++;
if ((flags & 2) && c == '\\' && c == *s)
s++; /* Posix requires $'\c\\' do backslash escaping */
c = TOCTRL(c);
break;
}