summaryrefslogtreecommitdiff
path: root/src/xutf8/utf8Input.c
diff options
context:
space:
mode:
Diffstat (limited to 'src/xutf8/utf8Input.c')
-rw-r--r--src/xutf8/utf8Input.c446
1 files changed, 446 insertions, 0 deletions
diff --git a/src/xutf8/utf8Input.c b/src/xutf8/utf8Input.c
new file mode 100644
index 000000000..205e7d0fc
--- /dev/null
+++ b/src/xutf8/utf8Input.c
@@ -0,0 +1,446 @@
+/******************************************************************************
+ Copyright (c) 2000-2002 by O'ksi'D
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * Neither the name of O'ksi'D nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
+ * OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+
+******************************************************************************/
+
+#if !defined(WIN32) && !defined(__APPLE__)
+
+#include "config.h"
+#include "../../FL/Xutf8.h"
+#include <X11/X.h>
+#include <X11/Xlib.h>
+#include <X11/Xutil.h>
+#include <X11/Intrinsic.h>
+#include <stdlib.h>
+
+#if HAVE_LIBC_ICONV
+#include <iconv.h>
+#endif
+/*
+ I haven't found much doc on the web about EUC encodings, so I've used
+ GNU libiconv source code as a reference.
+ http://clisp.cons.org/~haible/packages-libiconv.html
+*/
+
+#define RET_ILSEQ -1
+#define RET_TOOFEW(x) (-10 - x)
+#define RET_TOOSMALL -2
+#define conv_t void*
+#define ucs4_t unsigned int
+typedef struct {
+ unsigned short indx;
+ unsigned short used;
+} Summary16;
+
+#include "lcUniConv/big5.h"
+#include "lcUniConv/gb2312.h"
+#include "lcUniConv/jisx0201.h"
+#include "lcUniConv/jisx0208.h"
+#include "lcUniConv/jisx0212.h"
+#include "lcUniConv/ksc5601.h"
+
+int
+XConvertEucTwToUtf8(
+ char* buffer_return,
+ int len)
+{
+ /* FIXME */
+#if HAVE_LIBC_ICONV
+ iconv_t cd;
+ int cdl;
+#else
+ int i = 0;
+#endif
+ int l = 0;
+ char *buf, *b;
+
+ if (len < 1) return 0;
+ b = buf = (char*) malloc((unsigned)len);
+ memcpy(buf, buffer_return, (unsigned) len);
+
+#if HAVE_LIBC_ICONV
+ l = cdl = len;
+ cd = iconv_open("EUC-TW", "UTF-8");
+ iconv(cd, &b, &len, &buffer_return, &cdl);
+ iconv_close(cd);
+ l -= cdl;
+#else
+ while (i < len) {
+ unsigned int ucs;
+ unsigned char c;
+ c = (unsigned char) buf[i];
+ if (c < 0x80) {
+ ucs = c;
+ i++;
+ } else if (c >= 0xa1 && c < 0xff && len - i > 1 ) {
+ unsigned char b[2];
+ b[0] = (unsigned char) c - 0x80;
+ b[1] = (unsigned char) buf[i + 1] - 0x80;
+ ucs = ' '; i += 2;
+ } else if (c == 0x8e && len - i > 3) {
+ unsigned char b[2];
+ unsigned char c1 = buf[i + 1];
+ unsigned char c2 = buf[i + 2];
+ unsigned char c3 = buf[i + 3];
+ b[0] = (unsigned char) buf[i + 2] - 0x80;
+ b[1] = (unsigned char) buf[i + 3] - 0x80;
+ if (c1 >= 0xa1 && c1 <= 0xb0) {
+ if (c2 >= 0xa1 && c2 < 0xff && c3 >= 0xa1 &&
+ c3 < 0xff)
+ {
+ ucs = ' '; i += 4;
+ } else {
+ ucs = '?'; i++;
+ }
+ } else {
+ ucs = '?'; i++;
+ }
+ } else {
+ ucs = '?';
+ i++;
+ }
+ l += XConvertUcsToUtf8(ucs, buffer_return + l);
+ }
+#endif
+ free(buf);
+ return l;
+}
+
+int
+XConvertEucKrToUtf8(
+ char* buffer_return,
+ int len)
+{
+ int i = 0, l = 0;
+ char *buf;
+
+ if (len < 1) return 0;
+
+ buf = (char*) malloc((unsigned)len);
+ memcpy(buf, buffer_return, (unsigned)len);
+
+ while (i < len) {
+ unsigned int ucs;
+ unsigned char c, c1;
+ c = (unsigned char) buf[i];
+ if (c < 0x80) {
+ ucs = c;
+ i++;
+ } else if (c >= 0xA1 && c < 0xFF && len - i > 1) {
+ c1 = (unsigned char) buf[i + 1];
+ if (c1 >= 0xa1 && c1 < 0xff) {
+ unsigned char b[2];
+ b[0] = c - 0x80;
+ b[1] = c1 - 0x80;
+ if (ksc5601_mbtowc(NULL, &ucs, b, 2) < 1) {
+ ucs = '?';
+ }
+ } else {
+ ucs = '?';
+ }
+ i += 2;
+ } else {
+ ucs = '?';
+ i++;
+ }
+ l += XConvertUcsToUtf8(ucs, buffer_return + l);
+ }
+ free(buf);
+ return l;
+}
+
+int
+XConvertBig5ToUtf8(
+ char* buffer_return,
+ int len)
+{
+ int i = 0, l = 0;
+ char *buf;
+
+ if (len < 1) return 0;
+ buf = (char*) malloc((unsigned)len);
+ memcpy(buf, buffer_return, (unsigned)len);
+
+ if (len == 1) {
+ l += XConvertUcsToUtf8((unsigned int)buf[i], buffer_return + l);
+ }
+ while (i + 1 < len) {
+ unsigned int ucs;
+ unsigned char b[2];
+ b[0] = (unsigned char) buf[i];
+ b[1] = (unsigned char) buf[i + 1];
+ if (big5_mbtowc(NULL, &ucs, b, 2) == 2) {
+ i += 2;
+ } else {
+ ucs = '?';
+ i++;
+ }
+ l += XConvertUcsToUtf8(ucs, buffer_return + l);
+ }
+ free(buf);
+ return l;
+}
+
+int
+XConvertGb2312ToUtf8(
+ char* buffer_return,
+ int len)
+{
+ int i = 0, l = 0;
+ char *buf;
+
+ if (len < 1) return 0;
+ buf = (char*) malloc((unsigned)len);
+ memcpy(buf, buffer_return, (unsigned)len);
+
+ if (len == 1) {
+ l += XConvertUcsToUtf8((unsigned int)buf[i], buffer_return + l);
+ }
+ while (i + 1 < len) {
+ unsigned int ucs;
+ unsigned char b[2];
+ b[0] = (unsigned char) buf[i];
+ b[1] = (unsigned char) buf[i + 1];
+ if (gb2312_mbtowc(NULL, &ucs, b, 2) == 2) {
+ i += 2;
+ } else {
+ ucs = '?';
+ i++;
+ }
+ l += XConvertUcsToUtf8(ucs, buffer_return + l);
+ }
+ free(buf);
+ return l;
+}
+
+int
+XConvertEucCnToUtf8(
+ char* buffer_return,
+ int len)
+{
+ int i = 0, l = 0;
+ char *buf;
+
+ if (len < 1) return 0;
+ buf = (char*) malloc((unsigned)len);
+ memcpy(buf, buffer_return, (unsigned)len);
+
+ while (i < len) {
+ unsigned int ucs;
+ unsigned char c, c1;
+ c = (unsigned char) buf[i];
+ if (c < 0x80) {
+ ucs = c;
+ i++;
+ } else if (c >= 0xA1 && c < 0xFF && len - i > 1) {
+ c1 = (unsigned char) buf[i + 1];
+ if (c1 >= 0xa1 && c1 < 0xff) {
+ unsigned char b[2];
+ b[0] = (unsigned char) c;
+ b[1] = (unsigned char) c1;
+ if (gb2312_mbtowc(NULL, &ucs, b, 2) < 1) {
+ ucs = '?';
+ }
+ } else {
+ ucs = '?';
+ }
+ i += 2;
+ } else {
+ ucs = '?';
+ i++;
+ }
+ l += XConvertUcsToUtf8(ucs, buffer_return + l);
+ }
+ free(buf);
+ return l;
+}
+
+int
+XConvertEucJpToUtf8(
+ char* buffer_return,
+ int len)
+{
+ int i = 0, l = 0;
+ char *buf;
+
+ if (len < 1) return 0;
+ buf = (char*) malloc((unsigned)len);
+ memcpy(buf, buffer_return, (unsigned)len);
+
+ while (i < len) {
+ unsigned int ucs;
+ unsigned char c, c1;
+ c = (unsigned char) buf[i];
+ if (c < 0x80) {
+ ucs = c;
+ i++;
+ } else if (c >= 0xA1 && c < 0xFF && len - i > 1) {
+ c1 = (unsigned char) buf[i + 1];
+ if (c < 0xF5 && c1 >= 0xa1) {
+ unsigned char b[2];
+ b[0] = c - 0x80;
+ b[1] = c1 - 0x80;
+ if (jisx0208_mbtowc(NULL, &ucs, b, 2) < 1) {
+ ucs = '?';
+ }
+ } else if (c1 >= 0xA1 && c1 < 0xFF) {
+ ucs = 0xE000 + 94 * (c - 0xF5) + (c1 - 0xA1);
+ } else {
+ ucs = '?';
+ }
+ i += 2;
+ } else if (c == 0x8E && len - i > 1) {
+ c1 = (unsigned char) buf[i + 1];
+ if (c1 >= 0xa1 && c1 <= 0xe0) {
+ if (jisx0201_mbtowc(NULL, &ucs, &c1, 1) != 1) {
+ ucs = '?';
+ }
+ } else {
+ ucs = '?';
+ }
+ i += 2;
+ } else if (c == 0x8F && len - i > 2) {
+ c = (unsigned char) buf[i + 1];
+ c1 = (unsigned char) buf[i + 2];
+ if (c >= 0xa1 && c < 0xff) {
+ if (c < 0xf5 && c1 >= 0xa1 && c1 < 0xff) {
+ unsigned char b[2];
+ b[0] = c - 0x80;
+ b[1] = c1 - 0x80;
+ if (jisx0212_mbtowc(NULL, &ucs, b, 2)
+ < 1)
+ {
+ ucs = '?';
+ }
+ } else {
+ ucs = '?';
+ }
+ } else {
+ if (c1 >= 0xa1 && c1 < 0xff) {
+ ucs = 0xe3ac + 94 * (c - 0xF5) +
+ (c1 - 0xA1);
+ } else {
+ ucs = '?';
+ }
+ }
+ i += 3;
+ } else {
+ ucs = '?';
+ i++;
+ }
+ l += XConvertUcsToUtf8(ucs, buffer_return + l);
+ }
+ free(buf);
+ return l;
+}
+
+int
+XConvertEucToUtf8(
+ const char* locale,
+ char* buffer_return,
+ int len,
+ int bytes_buffer)
+{
+ if (!locale/* || strstr(locale, "UTF") || strstr(locale, "utf")*/) {
+ return len;
+ }
+
+ if (strstr(locale, "ja")) {
+ return XConvertEucJpToUtf8(buffer_return, len);
+ } else if (strstr(locale, "Big5") || strstr(locale, "big5")) { // BIG5
+ return XConvertBig5ToUtf8(buffer_return, len);
+ } else if (strstr(locale, "zh") || strstr(locale, "chinese-")) {
+ if (strstr(locale, "TW") || strstr(locale, "chinese-t")) {
+ if (strstr(locale, "EUC") || strstr(locale, "euc") ||
+ strstr(locale, "chinese-t"))
+ {
+ return XConvertEucTwToUtf8(buffer_return, len);
+ }
+ return XConvertBig5ToUtf8(buffer_return, len);
+ }
+ if (strstr(locale, "EUC") || strstr(locale, "euc")) {
+ return XConvertEucCnToUtf8(buffer_return, len);
+ }
+ return XConvertGb2312ToUtf8(buffer_return, len);
+ } else if (strstr(locale, "ko")) {
+ return XConvertEucKrToUtf8(buffer_return, len);
+ }
+ return len;
+}
+
+
+int
+XUtf8LookupString(
+ XIC ic,
+ XKeyPressedEvent* event,
+ char* buffer_return,
+ int bytes_buffer,
+ KeySym* keysym,
+ Status* status_return)
+{
+ long ucs = -1;
+ int len;
+ len = XmbLookupString(ic, event, buffer_return, bytes_buffer / 5,
+ keysym, status_return);
+ if (*status_return == XBufferOverflow) {
+ return len * 5;
+ }
+ if (*keysym > 0 && *keysym < 0x100 && len == 1) {
+ if (*keysym < 0x80) {
+ ucs = (unsigned char)buffer_return[0];
+ } else {
+ ucs = *keysym;
+ }
+ } else if (((*keysym >= 0x100 && *keysym <= 0xf000) ||
+ (*keysym & 0xff000000U) == 0x01000000))
+ {
+ ucs = XKeysymToUcs(*keysym);
+ } else {
+ ucs = -2;
+ }
+
+ if (ucs > 0) {
+ len = XConvertUcsToUtf8((unsigned)ucs, (char *)buffer_return);
+ } else if (len > 0) {
+ XIM im;
+ if (!ic) return 0;
+ im = XIMOfIC(ic);
+ if (!im) return 0;
+ len = XConvertEucToUtf8(XLocaleOfIM(im),
+ buffer_return, len, bytes_buffer);
+ }
+ return len;
+}
+
+#endif // X11 only
+
generated by cgit v1.2.3 (git 2.25.1) at 2026-02-08 10:03:45 +0000