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authorZack Weinberg <zackw@panix.com>2017-06-08 15:39:03 -0400
committerZack Weinberg <zackw@panix.com>2017-06-08 15:39:03 -0400
commit5046dbb4a7eba5eccfd258f92f4735c9ffc8d069 (patch)
tree4470480d904b65cf14ca524f96f79eca818c3eaf /REORG.TODO/iconvdata/8bit-gap.c
parent199fc19d3aaaf57944ef036e15904febe877fc93 (diff)
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Prepare for radical source tree reorganization.zack/build-layout-experiment
All top-level files and directories are moved into a temporary storage directory, REORG.TODO, except for files that will certainly still exist in their current form at top level when we're done (COPYING, COPYING.LIB, LICENSES, NEWS, README), all old ChangeLog files (which are moved to the new directory OldChangeLogs, instead), and the generated file INSTALL (which is just deleted; in the new order, there will be no generated files checked into version control).
Diffstat (limited to 'REORG.TODO/iconvdata/8bit-gap.c')
-rw-r--r--REORG.TODO/iconvdata/8bit-gap.c117
1 files changed, 117 insertions, 0 deletions
diff --git a/REORG.TODO/iconvdata/8bit-gap.c b/REORG.TODO/iconvdata/8bit-gap.c
new file mode 100644
index 0000000000..99f59c20e7
--- /dev/null
+++ b/REORG.TODO/iconvdata/8bit-gap.c
@@ -0,0 +1,117 @@
+/* Generic conversion to and from 8bit charsets,
+ converting from UCS using gaps.
+ Copyright (C) 1997-2017 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <http://www.gnu.org/licenses/>. */
+
+#include <dlfcn.h>
+#include <stdint.h>
+
+struct gap
+{
+ uint16_t start;
+ uint16_t end;
+ int32_t idx;
+};
+
+/* Now we can include the tables. */
+#include TABLES
+
+#ifndef NONNUL
+# define NONNUL(c) ((c) != '\0')
+#endif
+
+
+#define FROM_LOOP from_gap
+#define TO_LOOP to_gap
+#define DEFINE_INIT 1
+#define DEFINE_FINI 1
+#define MIN_NEEDED_FROM 1
+#define MIN_NEEDED_TO 4
+#define ONE_DIRECTION 0
+
+
+/* First define the conversion function from the 8bit charset to UCS4. */
+#define MIN_NEEDED_INPUT MIN_NEEDED_FROM
+#define MIN_NEEDED_OUTPUT MIN_NEEDED_TO
+#define LOOPFCT FROM_LOOP
+#define BODY \
+ { \
+ uint32_t ch = to_ucs4[*inptr]; \
+ \
+ if (HAS_HOLES && __builtin_expect (ch == L'\0', 0) && NONNUL (*inptr)) \
+ { \
+ /* This is an illegal character. */ \
+ STANDARD_FROM_LOOP_ERR_HANDLER (1); \
+ } \
+ else \
+ { \
+ put32 (outptr, ch); \
+ outptr += 4; \
+ } \
+ \
+ ++inptr; \
+ }
+#define LOOP_NEED_FLAGS
+#define ONEBYTE_BODY \
+ { \
+ uint32_t ch = to_ucs4[c]; \
+ \
+ if (HAS_HOLES && __builtin_expect (ch == L'\0', 0) && NONNUL (c)) \
+ return WEOF; \
+ else \
+ return ch; \
+ }
+#include <iconv/loop.c>
+
+
+/* Next, define the other direction. */
+#define MIN_NEEDED_INPUT MIN_NEEDED_TO
+#define MIN_NEEDED_OUTPUT MIN_NEEDED_FROM
+#define LOOPFCT TO_LOOP
+#define BODY \
+ { \
+ const struct gap *rp = from_idx; \
+ uint32_t ch = get32 (inptr); \
+ unsigned char res; \
+ \
+ if (__glibc_unlikely (ch >= 0xffff)) \
+ { \
+ UNICODE_TAG_HANDLER (ch, 4); \
+ rp = NULL; \
+ } \
+ else \
+ while (ch > rp->end) \
+ ++rp; \
+ if (__builtin_expect (rp == NULL, 0) \
+ || __builtin_expect (ch < rp->start, 0) \
+ || (res = from_ucs4[ch + rp->idx], \
+ __builtin_expect (res, '\1') == '\0' && ch != 0)) \
+ { \
+ /* This is an illegal character. */ \
+ STANDARD_TO_LOOP_ERR_HANDLER (4); \
+ } \
+ \
+ *outptr++ = res; \
+ inptr += 4; \
+ }
+#define LOOP_NEED_FLAGS
+#include <iconv/loop.c>
+
+
+/* Now define the toplevel functions. */
+#include <iconv/skeleton.c>