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authorJeff Johnston <jjohnstn@redhat.com>2004-11-24 03:45:41 +0300
committerJeff Johnston <jjohnstn@redhat.com>2004-11-24 03:45:41 +0300
commit3bf091476a0a544e388e9c8b7aab3371a7d936b5 (patch)
treeee3f3d8cf1be43b9a056e057e05def630503dace /newlib/libc/stdio/sccl.c
parent4b8e88e31d7efb45cddf753611fdb55f70ccdc9d (diff)
2004-11-23 Jeff Johnston <jjohnstn@redhat.com>
* libc/include/stdio.h: Add new iprintf and iscanf variants. Also do some reordering. * libc/machine/powerpc/vfscanf.c: Remove __sccl function. * libc/stdio/Makefile.am: Add support for new iprintf and iscanf family functions. * libc/stdio/Makefile.in: Regenerated. * libc/stdio/fiprintf.c: Remove doc to siprintf.c. * libc/stdio/iprintf.c: Ditto. * libc/stdio/local.h (__svfiscanf_r): New prototype. * libc/stdio/siprintf.c: Add docs for various iprintf family functions. * libc/stdio/sniprintf.c: Move docs to siprintf.c. * libc/stdio/stdio.tex: Add new functions. * libc/stdio/vfscanf.c: Split out __sccl function to separate file and add special name defines so this file can be used to build vfiscanf.o. * libc/stdio/asiprintf.c: New file. * libc/stdio/fiscanf.c: Ditto. * libc/stdio/iscanf.c: Ditto. * libc/stdio/sccl.c: Ditto. * libc/stdio/siscanf.c: Ditto. * libc/stdio/vasiprintf.c: Ditto. * libc/stdio/viprintf.c: Ditto. * libc/stdio/viscanf.c: Ditto. * libc/stdio/vsiprintf.c: Ditto. * libc/stdio/vsiscanf.c: Ditto. * libc/stdio/vsniprintf.c: Ditto.
Diffstat (limited to 'newlib/libc/stdio/sccl.c')
-rw-r--r--newlib/libc/stdio/sccl.c127
1 files changed, 127 insertions, 0 deletions
diff --git a/newlib/libc/stdio/sccl.c b/newlib/libc/stdio/sccl.c
new file mode 100644
index 000000000..b01801145
--- /dev/null
+++ b/newlib/libc/stdio/sccl.c
@@ -0,0 +1,127 @@
+/*-
+ * Copyright (c) 1990 The Regents of the University of California.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms are permitted
+ * provided that the above copyright notice and this paragraph are
+ * duplicated in all such forms and that any documentation,
+ * advertising materials, and other materials related to such
+ * distribution and use acknowledge that the software was developed
+ * by the University of California, Berkeley. The name of the
+ * University may not be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
+ */
+
+/* Split from vfscanf.c */
+
+#include <_ansi.h>
+#include <reent.h>
+#include <newlib.h>
+#include <stdio.h>
+#include "local.h"
+
+/*
+ * Fill in the given table from the scanset at the given format
+ * (just after `['). Return a pointer to the character past the
+ * closing `]'. The table has a 1 wherever characters should be
+ * considered part of the scanset.
+ */
+
+u_char *
+_DEFUN(__sccl, (tab, fmt),
+ register char *tab _AND
+ register u_char *fmt)
+{
+ register int c, n, v;
+
+ /* first `clear' the whole table */
+ c = *fmt++; /* first char hat => negated scanset */
+ if (c == '^')
+ {
+ v = 1; /* default => accept */
+ c = *fmt++; /* get new first char */
+ }
+ else
+ v = 0; /* default => reject */
+ /* should probably use memset here */
+ for (n = 0; n < 256; n++)
+ tab[n] = v;
+ if (c == 0)
+ return fmt - 1; /* format ended before closing ] */
+
+ /*
+ * Now set the entries corresponding to the actual scanset to the
+ * opposite of the above.
+ *
+ * The first character may be ']' (or '-') without being special; the
+ * last character may be '-'.
+ */
+
+ v = 1 - v;
+ for (;;)
+ {
+ tab[c] = v; /* take character c */
+ doswitch:
+ n = *fmt++; /* and examine the next */
+ switch (n)
+ {
+
+ case 0: /* format ended too soon */
+ return fmt - 1;
+
+ case '-':
+ /*
+ * A scanset of the form [01+-] is defined as `the digit 0, the
+ * digit 1, the character +, the character -', but the effect of a
+ * scanset such as [a-zA-Z0-9] is implementation defined. The V7
+ * Unix scanf treats `a-z' as `the letters a through z', but treats
+ * `a-a' as `the letter a, the character -, and the letter a'.
+ *
+ * For compatibility, the `-' is not considerd to define a range if
+ * the character following it is either a close bracket (required by
+ * ANSI) or is not numerically greater than the character we just
+ * stored in the table (c).
+ */
+ n = *fmt;
+ if (n == ']' || n < c)
+ {
+ c = '-';
+ break; /* resume the for(;;) */
+ }
+ fmt++;
+ do
+ { /* fill in the range */
+ tab[++c] = v;
+ }
+ while (c < n);
+#if 1 /* XXX another disgusting compatibility hack */
+ /*
+ * Alas, the V7 Unix scanf also treats formats such
+ * as [a-c-e] as `the letters a through e'. This too
+ * is permitted by the standard....
+ */
+ goto doswitch;
+#else
+ c = *fmt++;
+ if (c == 0)
+ return fmt - 1;
+ if (c == ']')
+ return fmt;
+#endif
+
+ break;
+
+
+ case ']': /* end of scanset */
+ return fmt;
+
+ default: /* just another character */
+ c = n;
+ break;
+ }
+ }
+ /* NOTREACHED */
+}