Added remaining xlib patch required for gb18030 support (#1573).

modules/lc/Utf8/lcUTF8Load.c

@@ -51,13 +51,21 @@ _XlcUtf8Loader(
 	return lcd;
 
     /* The official IANA name for UTF-8 is "UTF-8" in upper case with a dash. */
-    if (!XLC_PUBLIC_PART(lcd)->codeset ||
-	(_XlcCompareISOLatin1(XLC_PUBLIC_PART(lcd)->codeset, "UTF-8"))) {
+    if (!XLC_PUBLIC_PART(lcd)->codeset) {
+	_XlcDestroyLC(lcd);
+	return (XLCd) NULL;
+    }
+    else if (!_XlcCompareISOLatin1(XLC_PUBLIC_PART(lcd)->codeset, "UTF-8")) {
+        _XlcAddUtf8LocaleConverters(lcd);
+    }
+    else if (!_XlcCompareISOLatin1(XLC_PUBLIC_PART(lcd)->codeset, "GB18030")) {
+        _XlcAddGB18030LocaleConverters(lcd);
+    }
+    else {
 	_XlcDestroyLC(lcd);
 	return (XLCd) NULL;
     }
 
-    _XlcAddUtf8LocaleConverters(lcd);
     _XlcAddUtf8Converters(lcd);
 
     return lcd;

src/xlibi18n/Xlcint.h

@@ -912,6 +912,11 @@ extern void _XlcAddUtf8LocaleConverters(
     XLCd		lcd
 );
 
+/* Registers GB18030 converters for a GB18030 locale. */
+extern void _XlcAddGB18030LocaleConverters(
+    XLCd		lcd
+);
+
 /* The default locale loader. Assumes an ASCII encoding. */
 extern XLCd _XlcDefaultLoader(
     const char*		name

src/xlibi18n/lcCT.c

@@ -125,6 +125,8 @@ static const CTDataRec default_ct_data[] =
 #endif
     /* For use by utf8 -> ctext */
     { "BIG5-0:GLGR", "\033%/2"},
+    { "BIG5HKSCS-0:GLGR", "\033%/2"},
+    { "GBK-0:GLGR", "\033%/2"},
     /* used by Emacs, but not backed by ISO-IR */
     { "BIG5-E0:GL", "\033$(0" },
     { "BIG5-E0:GR", "\033$)0" },

src/xlibi18n/lcUTF8.c

@@ -212,6 +212,8 @@ typedef struct {
 #include "lcUniConv/ksc5601.h"
 #include "lcUniConv/big5.h"
 #include "lcUniConv/big5_emacs.h"
+#include "lcUniConv/big5hkscs.h"
+#include "lcUniConv/gbk.h"
 
 static Utf8ConvRec all_charsets[] = {
     /* The ISO10646-1/UTF-8 entry occurs twice, once at the beginning
@@ -332,14 +334,20 @@ static Utf8ConvRec all_charsets[] = {
 	cp1256_mbtowc, cp1256_wctomb
     },
     { "BIG5-0", NULLQUARK,
-    big5_mbtowc, big5_wctomb
-	},
+	big5_mbtowc, big5_wctomb
+    },
     { "BIG5-E0", NULLQUARK,
 	big5_0_mbtowc, big5_0_wctomb
     },
     { "BIG5-E1", NULLQUARK,
 	big5_1_mbtowc, big5_1_wctomb
     },
+    { "GBK-0", NULLQUARK,
+	gbk_mbtowc, gbk_wctomb
+    },
+    { "BIG5HKSCS-0", NULLQUARK,
+	big5hkscs_mbtowc, big5hkscs_wctomb
+    },
 
     /* The ISO10646-1/UTF-8 entry occurs twice, once at the beginning
        (for lookup speed), once at the end (as a fallback).  */
@@ -1807,6 +1815,585 @@ open_utf8tofcs(
     return create_tofontcs_conv(from_lcd, &methods_utf8tocs);
 }
 
+/* ========================== iconv Stuff ================================ */
+
+/* from XlcNCharSet to XlcNMultiByte */
+
+static int
+iconv_cstombs(conv, from, from_left, to, to_left, args, num_args)
+    XlcConv conv;
+    XPointer *from;
+    int *from_left;
+    XPointer *to;
+    int *to_left;
+    XPointer *args;
+    int num_args;
+{
+    XlcCharSet charset;
+    char *name;
+    Utf8Conv convptr;
+    int i;
+    unsigned char const *src;
+    unsigned char const *srcend;
+    unsigned char *dst;
+    unsigned char *dstend;
+    int unconv_num;
+
+    if (from == NULL || *from == NULL)
+	return 0;
+
+    if (num_args < 1)
+	return -1;
+
+    charset = (XlcCharSet) args[0];
+    name = charset->encoding_name;
+    /* not charset->name because the latter has a ":GL"/":GR" suffix */
+
+    for (convptr = all_charsets, i = all_charsets_count-1; i > 0; convptr++, i--)
+	if (!strcmp(convptr->name, name))
+	    break;
+    if (i == 0)
+	return -1;
+
+    src = (unsigned char const *) *from;
+    srcend = src + *from_left;
+    dst = (unsigned char *) *to;
+    dstend = dst + *to_left;
+    unconv_num = 0;
+
+    while (src < srcend) {
+	ucs4_t wc;
+	int consumed;
+	int count;
+
+	consumed = convptr->cstowc(conv, &wc, src, srcend-src);
+	if (consumed == RET_ILSEQ)
+	    return -1;
+	if (consumed == RET_TOOFEW(0))
+	    break;
+
+    /* Use stdc iconv to convert widechar -> multibyte */
+
+	count = wctomb(dst, wc);
+	if (count == 0)
+	    break;
+	if (count == -1) {
+	    count = wctomb(dst, BAD_WCHAR);
+	    if (count == 0)
+		break;
+	    unconv_num++;
+	}
+	src += consumed;
+	dst += count;
+    }
+
+    *from = (XPointer) src;
+    *from_left = srcend - src;
+    *to = (XPointer) dst;
+    *to_left = dstend - dst;
+
+    return unconv_num;
+
+}
+
+static XlcConvMethodsRec iconv_cstombs_methods = {
+    close_converter,
+    iconv_cstombs,
+    NULL
+};
+
+static XlcConv
+open_iconv_cstombs(from_lcd, from_type, to_lcd, to_type)
+    XLCd from_lcd;
+    char *from_type;
+    XLCd to_lcd;
+    char *to_type;
+{
+    lazy_init_all_charsets();
+    return create_conv(from_lcd, &iconv_cstombs_methods);
+}
+
+static int
+iconv_mbstocs(conv, from, from_left, to, to_left, args, num_args)
+    XlcConv conv;
+    XPointer *from;
+    int *from_left;
+    XPointer *to;
+    int *to_left;
+    XPointer *args;
+    int num_args;
+{
+    Utf8Conv *preferred_charsets;
+    XlcCharSet last_charset = NULL;
+    unsigned char const *src;
+    unsigned char const *srcend;
+    unsigned char *dst;
+    unsigned char *dstend;
+    int unconv_num;
+
+    if (from == NULL || *from == NULL)
+	return 0;
+
+    preferred_charsets = (Utf8Conv *) conv->state;
+    src = (unsigned char const *) *from;
+    srcend = src + *from_left;
+    dst = (unsigned char *) *to;
+    dstend = dst + *to_left;
+    unconv_num = 0;
+
+    while (src < srcend && dst < dstend) {
+	Utf8Conv chosen_charset = NULL;
+	XlcSide chosen_side = XlcNONE;
+	wchar_t wc;
+	int consumed;
+	int count;
+
+    /* Uses stdc iconv to convert multibyte -> widechar */
+
+	consumed = mbtowc(&wc, src, srcend-src);
+	if (consumed == 0)
+	    break;
+	if (consumed == -1) {
+	    src++;
+	    unconv_num++;
+	    continue;
+	}
+
+	count = charset_wctocs(preferred_charsets, &chosen_charset, &chosen_side, conv, dst, wc, dstend-dst);
+
+	if (count == RET_TOOSMALL)
+	    break;
+	if (count == RET_ILSEQ) {
+	    src += consumed;
+	    unconv_num++;
+	    continue;
+	}
+
+	if (last_charset == NULL) {
+	    last_charset =
+	        _XlcGetCharSetWithSide(chosen_charset->name, chosen_side);
+	    if (last_charset == NULL) {
+		src += consumed;
+		unconv_num++;
+		continue;
+	    }
+	} else {
+	    if (!(last_charset->xrm_encoding_name == chosen_charset->xrm_name
+	          && (last_charset->side == XlcGLGR
+	              || last_charset->side == chosen_side)))
+		break;
+	}
+	src += consumed;
+	dst += count;
+    }
+
+    if (last_charset == NULL)
+	return -1;
+
+    *from = (XPointer) src;
+    *from_left = srcend - src;
+    *to = (XPointer) dst;
+    *to_left = dstend - dst;
+
+    if (num_args >= 1)
+	*((XlcCharSet *)args[0]) = last_charset;
+
+    return unconv_num;
+}
+
+static XlcConvMethodsRec iconv_mbstocs_methods = {
+    close_tocs_converter,
+    iconv_mbstocs,
+    NULL
+};
+
+static XlcConv
+open_iconv_mbstocs(from_lcd, from_type, to_lcd, to_type)
+    XLCd from_lcd;
+    char *from_type;
+    XLCd to_lcd;
+    char *to_type;
+{
+    return create_tocs_conv(from_lcd, &iconv_mbstocs_methods);
+}
+
+/* from XlcNMultiByte to XlcNChar */
+
+static int
+iconv_mbtocs(conv, from, from_left, to, to_left, args, num_args)
+    XlcConv conv;
+    XPointer *from;
+    int *from_left;
+    XPointer *to;
+    int *to_left;
+    XPointer *args;
+    int num_args;
+{
+    Utf8Conv *preferred_charsets;
+    XlcCharSet last_charset = NULL;
+    unsigned char const *src;
+    unsigned char const *srcend;
+    unsigned char *dst;
+    unsigned char *dstend;
+    int unconv_num;
+
+    if (from == NULL || *from == NULL)
+	return 0;
+
+    preferred_charsets = (Utf8Conv *) conv->state;
+    src = (unsigned char const *) *from;
+    srcend = src + *from_left;
+    dst = (unsigned char *) *to;
+    dstend = dst + *to_left;
+    unconv_num = 0;
+
+    while (src < srcend && dst < dstend) {
+	Utf8Conv chosen_charset = NULL;
+	XlcSide chosen_side = XlcNONE;
+	wchar_t wc;
+	int consumed;
+	int count;
+
+    /* Uses stdc iconv to convert multibyte -> widechar */
+
+	consumed = mbtowc(&wc, src, srcend-src);
+	if (consumed == 0)
+	    break;
+	if (consumed == -1) {
+	    src++;
+	    unconv_num++;
+	    continue;
+	}
+
+	count = charset_wctocs(preferred_charsets, &chosen_charset, &chosen_side, conv, dst, wc, dstend-dst);
+	if (count == RET_TOOSMALL)
+	    break;
+	if (count == RET_ILSEQ) {
+	    src += consumed;
+	    unconv_num++;
+	    continue;
+	}
+
+	if (last_charset == NULL) {
+	    last_charset =
+		_XlcGetCharSetWithSide(chosen_charset->name, chosen_side);
+	    if (last_charset == NULL) {
+		src += consumed;
+		unconv_num++;
+		continue;
+	    }
+	} else {
+	    if (!(last_charset->xrm_encoding_name == chosen_charset->xrm_name
+		  && (last_charset->side == XlcGLGR
+		      || last_charset->side == chosen_side)))
+		break;
+	}
+	src += consumed;
+	dst += count;
+    }
+
+    if (last_charset == NULL)
+	return -1;
+
+    *from = (XPointer) src;
+    *from_left = srcend - src;
+    *to = (XPointer) dst;
+    *to_left = dstend - dst;
+
+    if (num_args >= 1)
+	*((XlcCharSet *)args[0]) = last_charset;
+
+    return unconv_num;
+}
+
+static XlcConvMethodsRec iconv_mbtocs_methods = {
+    close_tocs_converter,
+    iconv_mbtocs,
+    NULL
+};
+
+static XlcConv
+open_iconv_mbtocs (from_lcd, from_type, to_lcd, to_type)
+    XLCd from_lcd;
+    char *from_type;
+    XLCd to_lcd;
+    char *to_type;
+{
+    return create_tocs_conv(from_lcd, &iconv_mbtocs_methods );
+}
+
+/* from XlcNMultiByte to XlcNString */
+
+static int
+iconv_mbstostr(conv, from, from_left, to, to_left, args, num_args)
+    XlcConv conv;
+    XPointer *from;
+    int *from_left;
+    XPointer *to;
+    int *to_left;
+    XPointer *args;
+    int num_args;
+{
+    unsigned char const *src;
+    unsigned char const *srcend;
+    unsigned char *dst;
+    unsigned char *dstend;
+    int unconv_num;
+
+    if (from == NULL || *from == NULL)
+	return 0;
+
+    src = (unsigned char const *) *from;
+    srcend = src + *from_left;
+    dst = (unsigned char *) *to;
+    dstend = dst + *to_left;
+    unconv_num = 0;
+
+    while (src < srcend) {
+	unsigned char c;
+	wchar_t wc;
+	int consumed;
+
+    /* Uses stdc iconv to convert multibyte -> widechar */
+
+	consumed = mbtowc(&wc, src, srcend-src);
+	if (consumed == 0)
+	    break;
+	if (dst == dstend)
+	    break;
+	if (consumed == -1) {
+	    consumed = 1;
+	    c = BAD_CHAR;
+	    unconv_num++;
+	} else {
+	    if ((wc & ~(wchar_t)0xff) != 0) {
+		c = BAD_CHAR;
+		unconv_num++;
+	    } else
+		c = (unsigned char) wc;
+	}
+	*dst++ = c;
+	src += consumed;
+    }
+
+    *from = (XPointer) src;
+    *from_left = srcend - src;
+    *to = (XPointer) dst;
+    *to_left = dstend - dst;
+
+    return unconv_num;
+}
+
+static XlcConvMethodsRec iconv_mbstostr_methods = {
+    close_converter,
+    iconv_mbstostr,
+    NULL
+};
+
+static XlcConv
+open_iconv_mbstostr(from_lcd, from_type, to_lcd, to_type)
+    XLCd from_lcd;
+    char *from_type;
+    XLCd to_lcd;
+    char *to_type;
+{
+    return create_conv(from_lcd, &iconv_mbstostr_methods);
+}
+
+/* from XlcNString to XlcNMultiByte */
+static int
+iconv_strtombs(conv, from, from_left, to, to_left, args, num_args)
+    XlcConv conv;
+    XPointer *from;
+    int *from_left;
+    XPointer *to;
+    int *to_left;
+    XPointer *args;
+    int num_args;
+{
+    unsigned char const *src;
+    unsigned char const *srcend;
+    unsigned char *dst;
+    unsigned char *dstend;
+
+    if (from == NULL || *from == NULL)
+	return 0;
+
+    src = (unsigned char const *) *from;
+    srcend = src + *from_left;
+    dst = (unsigned char *) *to;
+    dstend = dst + *to_left;
+
+    while (src < srcend) {
+	int count = wctomb(dst, *src);
+	if (count < 0)
+	    break;
+	dst += count;
+	src++;
+    }
+
+    *from = (XPointer) src;
+    *from_left = srcend - src;
+    *to = (XPointer) dst;
+    *to_left = dstend - dst;
+
+    return 0;
+}
+
+static XlcConvMethodsRec iconv_strtombs_methods= {
+    close_converter,
+    iconv_strtombs,
+    NULL
+};
+
+static XlcConv
+open_iconv_strtombs(from_lcd, from_type, to_lcd, to_type)
+    XLCd from_lcd;
+    char *from_type;
+    XLCd to_lcd;
+    char *to_type;
+{
+    return create_conv(from_lcd, &iconv_strtombs_methods);
+}
+
+/***************************************************************************/
+/* Part II: An iconv locale loader.
+ *
+ *Here we can assume that "multi-byte" is iconv and that `wchar_t' is Unicode.
+ */
+
+/* from XlcNMultiByte to XlcNWideChar */
+static int
+iconv_mbstowcs(conv, from, from_left, to, to_left, args, num_args)
+    XlcConv conv;
+    XPointer *from;
+    int *from_left;
+    XPointer *to;
+    int *to_left;
+    XPointer *args;
+    int num_args;
+{
+    char *src = *((char **) from);
+    wchar_t *dst = *((wchar_t **) to);
+    int src_left = *from_left;
+    int dst_left = *to_left;
+    int length, unconv_num = 0;
+
+    while (src_left > 0 && dst_left > 0) {
+	length = mbtowc(dst, src, src_left);
+
+	if (length > 0) {
+	    src += length;
+	    src_left -= length;
+	    if (dst)
+	        dst++;
+	    dst_left--;
+	} else if (length < 0) {
+	    src++;
+	    src_left--;
+	    unconv_num++;
+        } else {
+            /* null ? */
+            src++;
+            src_left--;
+            if (dst) 
+                *dst++ = L'\0';
+            dst_left--;
+        }
+    }
+
+    *from = (XPointer) src;
+    if (dst)
+	*to = (XPointer) dst;
+    *from_left = src_left;
+    *to_left = dst_left;
+
+    return unconv_num;
+}
+
+static XlcConvMethodsRec iconv_mbstowcs_methods = {
+    close_converter,
+    iconv_mbstowcs,
+    NULL
+} ;
+
+static XlcConv
+open_iconv_mbstowcs(from_lcd, from_type, to_lcd, to_type)
+    XLCd from_lcd;
+    char *from_type;
+    XLCd to_lcd;
+    char *to_type;
+{
+    return create_conv(from_lcd, &iconv_mbstowcs_methods);
+}
+
+static int
+iconv_wcstombs(conv, from, from_left, to, to_left, args, num_args)
+    XlcConv conv;
+    XPointer *from;
+    int *from_left;
+    XPointer *to;
+    int *to_left;
+    XPointer *args;
+    int num_args;
+{
+    wchar_t *src = *((wchar_t **) from);
+    char *dst = *((char **) to);
+    int src_left = *from_left;
+    int dst_left = *to_left;
+    int length, unconv_num = 0;
+
+    while (src_left > 0 && dst_left >= MB_CUR_MAX) { 
+	length = wctomb(dst, *src);		/* XXX */
+
+        if (length > 0) {
+	    src++;
+	    src_left--;
+	    if (dst) 
+		dst += length;
+	    dst_left -= length;
+	} else if (length < 0) {
+	    src++;
+	    src_left--;
+	    unconv_num++;
+	} 
+    }
+
+    *from = (XPointer) src;
+    if (dst)
+      *to = (XPointer) dst;
+    *from_left = src_left;
+    *to_left = dst_left;
+
+    return unconv_num;
+}
+
+static XlcConvMethodsRec iconv_wcstombs_methods = {
+    close_converter,
+    iconv_wcstombs,
+    NULL
+} ;
+
+static XlcConv
+open_iconv_wcstombs(from_lcd, from_type, to_lcd, to_type)
+    XLCd from_lcd;
+    char *from_type;
+    XLCd to_lcd;
+    char *to_type;
+{
+    return create_conv(from_lcd, &iconv_wcstombs_methods);
+}
+
+static XlcConv
+open_iconv_mbstofcs(
+    XLCd from_lcd,
+    const char *from_type,
+    XLCd to_lcd,
+    const char *to_type)
+{
+    return create_tofontcs_conv(from_lcd, &iconv_mbstocs_methods);
+}
+
 /* Registers UTF-8 converters for a UTF-8 locale. */
 
 void
@@ -1842,3 +2429,34 @@ _XlcAddUtf8LocaleConverters(
     _XlcSetConverter(lcd, XlcNMultiByte, lcd, XlcNFontCharSet, open_utf8tofcs);
     _XlcSetConverter(lcd, XlcNWideChar, lcd, XlcNFontCharSet, open_wcstofcs);
 }
+
+void
+_XlcAddGB18030LocaleConverters(
+    XLCd lcd)
+{
+
+    /* Register elementary converters. */
+    _XlcSetConverter(lcd, XlcNMultiByte, lcd, XlcNWideChar, open_iconv_mbstowcs);
+    _XlcSetConverter(lcd, XlcNWideChar, lcd, XlcNMultiByte, open_iconv_wcstombs);
+
+    /* Register converters for XlcNCharSet. This implicitly provides
+     * converters from and to XlcNCompoundText. */
+
+    _XlcSetConverter(lcd, XlcNCharSet, lcd, XlcNMultiByte, open_iconv_cstombs);
+    _XlcSetConverter(lcd, XlcNMultiByte, lcd, XlcNCharSet, open_iconv_mbstocs);
+    _XlcSetConverter(lcd, XlcNMultiByte, lcd, XlcNChar, open_iconv_mbtocs);
+    _XlcSetConverter(lcd, XlcNString, lcd, XlcNMultiByte, open_iconv_strtombs);
+    _XlcSetConverter(lcd, XlcNMultiByte, lcd, XlcNString, open_iconv_mbstostr);
+
+    /* Register converters for XlcNFontCharSet */
+    _XlcSetConverter(lcd, XlcNMultiByte, lcd, XlcNFontCharSet, open_iconv_mbstofcs);
+
+    _XlcSetConverter(lcd, XlcNWideChar, lcd, XlcNString, open_wcstostr);
+    _XlcSetConverter(lcd, XlcNString, lcd, XlcNWideChar, open_strtowcs);
+    _XlcSetConverter(lcd, XlcNCharSet, lcd, XlcNWideChar, open_cstowcs);
+    _XlcSetConverter(lcd, XlcNWideChar, lcd, XlcNCharSet, open_wcstocs);
+    _XlcSetConverter(lcd, XlcNWideChar, lcd, XlcNChar, open_wcstocs1);
+
+    /* Register converters for XlcNFontCharSet */
+    _XlcSetConverter(lcd, XlcNWideChar, lcd, XlcNFontCharSet, open_wcstofcs);
+}

src/xlibi18n/lcUniConv/cjk_tab_to_h.c

@@ -18,6 +18,8 @@
  *   ./cjk_tab_to_h BIG5 big5 > big5.h < BIG5.TXT
  *
  *   ./cjk_tab_to_h JOHAB johab > johab.h < JOHAB.TXT
+ *
+ *   ./cjk_tab_to_h BIG5HKSCS-0 big5hkscs >big5hkscs.h < BIG5HKSCS.TXT
  */
 
 #include <stdio.h>
@@ -892,6 +894,49 @@ static void do_big5 (const char* name)
   invert(&enc); output_uni2charset_sparse(name,&enc);
 }
 
+/* Big5-HKSCS specifics */
+
+static int row_byte_big5hkscs (int row) {
+  return 0x81+row;
+}
+static int col_byte_big5hkscs (int col) {
+  return (col >= 0x3f ? 0x62 : 0x40) + col;
+}
+static int byte_row_big5hkscs (int byte) {
+  if (byte >= 0x81 && byte < 0xff)
+    return byte-0x81;
+  else
+    return -1;
+}
+static int byte_col_big5hkscs (int byte) {
+  if (byte >= 0x40 && byte < 0x7f)
+    return byte-0x40;
+  else if (byte >= 0xa1 && byte < 0xff)
+    return byte-0x62;
+  else
+    return -1;
+}
+
+static void do_big5hkscs (const char* name)
+{
+  Encoding enc;
+
+  enc.rows = 126;
+  enc.cols = 157;
+  enc.row_byte = row_byte_big5hkscs;
+  enc.col_byte = col_byte_big5hkscs;
+  enc.byte_row = byte_row_big5hkscs;
+  enc.byte_col = byte_col_big5hkscs;
+  enc.check_row_expr = "%1$s >= 0x81 && %1$s < 0xff";
+  enc.check_col_expr = "(%1$s >= 0x40 && %1$s < 0x7f) || (%1$s >= 0xa1 && %1$s < 0xff)";
+  enc.byte_row_expr = "%1$s - 0x81";
+  enc.byte_col_expr = "%1$s - (%1$s >= 0xa1 ? 0x62 : 0x40)";
+
+  read_table(&enc);
+  output_charset2uni(name,&enc);
+  invert(&enc); output_uni2charset_sparse(name,&enc);
+}
+
 /* Johab Hangul specifics */
 
 static int row_byte_johab_hangul (int row) {
@@ -1014,6 +1059,8 @@ int main (int argc, char *argv[])
     do_ksc5601(name);
   else if (!strcmp(name,"big5") || !strcmp(name,"cp950ext"))
     do_big5(name);
+  else if (!strcmp(name,"big5hkscs"))
+    do_big5hkscs(name);
   else if (!strcmp(name,"johab_hangul"))
     do_johab_hangul(name);
   else if (!strcmp(name,"cp932ext"))