From: Rui Hirokawa <hirokawa@php.net>
Date: Wed, 15 May 2002 12:13:56 +0000 (+0000)
Subject: added ISO-2022-KR support in mbstring.
X-Git-Tag: php-4.3.0dev-ZendEngine2-Preview1~31
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=5f8009a7eae813e6b1c621ada9ed47ea170117e5;p=php

added ISO-2022-KR support in mbstring.
---

diff --git a/ext/mbstring/mbfilter.c b/ext/mbstring/mbfilter.c
index 0968b44fc9..678dc38d29 100644
--- a/ext/mbstring/mbfilter.c
+++ b/ext/mbstring/mbfilter.c
@@ -788,6 +788,15 @@ static mbfl_encoding mbfl_encoding_uhc = {
 	MBFL_ENCTYPE_MBCS
 };
 
+static mbfl_encoding mbfl_encoding_2022kr = {
+	mbfl_no_encoding_2022kr,
+	"ISO-2022-KR",
+	"ISO-2022-KR",
+	NULL,
+	NULL,
+	MBFL_ENCTYPE_MBCS | MBFL_ENCTYPE_SHFTCODE
+};
+
 #endif /* HAVE_MBSTR_KR */
 
 static const char *mbfl_encoding_cp1252_aliases[] = {"cp1252", NULL};
@@ -1007,6 +1016,7 @@ static mbfl_encoding *mbfl_encoding_ptr_list[] = {
 #if defined(HAVE_MBSTR_KR)
 	&mbfl_encoding_euc_kr,
 	&mbfl_encoding_uhc,
+	&mbfl_encoding_2022kr,
 #endif
 	NULL
 };
@@ -1115,6 +1125,7 @@ static int mbfl_filt_ident_big5(int c, mbfl_identify_filter *filter TSRMLS_DC);
 #if defined(HAVE_MBSTR_KR)
 static int mbfl_filt_ident_euckr(int c, mbfl_identify_filter *filter TSRMLS_DC);
 static int mbfl_filt_ident_uhc(int c, mbfl_identify_filter *filter TSRMLS_DC);
+static int mbfl_filt_ident_2022kr(int c, mbfl_identify_filter *filter TSRMLS_DC);
 #endif /* HAVE_MBSTR_KR */
 
 static int mbfl_filt_ident_cp1252(int c, mbfl_identify_filter *filter TSRMLS_DC);
@@ -1723,6 +1734,23 @@ static struct mbfl_convert_vtbl vtbl_wchar_uhc = {
 	mbfl_filt_conv_common_dtor,
 	mbfl_filt_conv_wchar_uhc,
 	mbfl_filt_conv_common_flush };
+
+static struct mbfl_convert_vtbl vtbl_wchar_2022kr = {
+	mbfl_no_encoding_wchar,
+	mbfl_no_encoding_2022kr,
+	mbfl_filt_conv_common_ctor,
+	mbfl_filt_conv_common_dtor,
+	mbfl_filt_conv_wchar_2022kr,
+	mbfl_filt_conv_any_2022kr_flush };
+
+static struct mbfl_convert_vtbl vtbl_2022kr_wchar = {
+	mbfl_no_encoding_2022kr,
+	mbfl_no_encoding_wchar,
+	mbfl_filt_conv_common_ctor,
+	mbfl_filt_conv_common_dtor,
+	mbfl_filt_conv_2022kr_wchar,
+	mbfl_filt_conv_common_flush };
+
 #endif /* HAVE_MBSTR_KR */
 
 static struct mbfl_convert_vtbl vtbl_cp1252_wchar = {
@@ -1987,6 +2015,8 @@ static struct mbfl_convert_vtbl *mbfl_convert_filter_list[] = {
 	&vtbl_wchar_euckr,
 	&vtbl_uhc_wchar,
 	&vtbl_wchar_uhc,
+	&vtbl_2022kr_wchar,
+	&vtbl_wchar_2022kr,
 #endif
 	&vtbl_cp1252_wchar,
 	&vtbl_wchar_cp1252,
@@ -2170,6 +2200,13 @@ static struct mbfl_identify_vtbl vtbl_identify_uhc = {
 	mbfl_filt_ident_common_ctor,
 	mbfl_filt_ident_common_dtor,
 	mbfl_filt_ident_uhc };
+
+static struct mbfl_identify_vtbl vtbl_identify_2022kr = {
+	mbfl_no_encoding_2022kr,
+	mbfl_filt_ident_common_ctor,
+	mbfl_filt_ident_common_dtor,
+	mbfl_filt_ident_2022kr };
+
 #endif /* HAVE_MBSTR_KR */
 
 static struct mbfl_identify_vtbl vtbl_identify_cp1252 = {
@@ -2286,6 +2323,7 @@ static struct mbfl_identify_vtbl *mbfl_identify_filter_list[] = {
 #if defined(HAVE_MBSTR_KR)
 	&vtbl_identify_euckr,
 	&vtbl_identify_uhc,
+	&vtbl_identify_2022kr,
 #endif
 	&vtbl_identify_cp1252,
 	&vtbl_identify_8859_1,
@@ -6011,6 +6049,77 @@ mbfl_filt_ident_uhc(int c, mbfl_identify_filter *filter TSRMLS_DC)
 	return c;
 }
 
+static int
+mbfl_filt_ident_2022kr(int c, mbfl_identify_filter *filter TSRMLS_DC)
+{
+retry:
+	switch (filter->status & 0xf) {
+/*	case 0x00:	 ASCII */
+/*	case 0x10:	 KSC5601 mode */
+/*	case 0x20:	 KSC5601 DBCS */
+/*	case 0x40:	 KSC5601 SBCS */
+	case 0:
+		if (!(filter->status & 0x10)) {
+			if (c == 0x1b)
+				filter->status += 2;
+		} else if (filter->status == 0x20 && c > 0x20 && c < 0x7f) {		/* kanji first char */
+			filter->status += 1;
+		} else if (c >= 0 && c < 0x80) {		/* latin, CTLs */
+			;
+		} else {
+			filter->flag = 1;	/* bad */
+		}
+		break;
+
+/*	case 0x21:	 KSC5601 second char */
+	case 1:
+		filter->status &= ~0xf;
+		if (c < 0x21 || c > 0x7e) {		/* bad */
+			filter->flag = 1;
+		}
+		break;
+
+	/* ESC */
+	case 2:
+		if (c == 0x24) {		/* '$' */
+			filter->status++;
+		} else {
+			filter->flag = 1;	/* bad */
+			filter->status &= ~0xf;
+			goto retry;
+		}
+		break;
+
+	/* ESC $ */
+	case 3:
+		if (c == 0x29) {		/* ')' */
+			filter->status++;
+		} else {
+			filter->flag = 1;	/* bad */
+			filter->status &= ~0xf;
+			goto retry;
+		}
+		break;
+
+	/* ESC $) */
+	case 5:
+		if (c == 0x43) {		/* 'C' */
+			filter->status = 0x10;
+		} else {
+			filter->flag = 1;	/* bad */
+			filter->status &= ~0xf;
+			goto retry;
+		}
+		break;
+
+	default:
+		filter->status = 0;
+		break;
+	}
+
+	return c;
+}
+
 #endif /* HAVE_MBSTR_KR */
 
 
diff --git a/ext/mbstring/mbfilter_cn.c b/ext/mbstring/mbfilter_cn.c
index 9dcdd7dfdb..6feab182dd 100644
--- a/ext/mbstring/mbfilter_cn.c
+++ b/ext/mbstring/mbfilter_cn.c
@@ -353,7 +353,7 @@ mbfl_filt_conv_wchar_hz(int c, mbfl_convert_filter *filter TSRMLS_DC)
 	} else if (c >= ucs_hff_cp936_table_min && c < ucs_hff_cp936_table_max) {
 		s = ucs_hff_cp936_table[c - ucs_hff_cp936_table_min];
 	}
-	if (s >= 0x0080) {
+	if (s & 0x8000) {
 		s -= 0x8080;
 	}
 
diff --git a/ext/mbstring/mbfilter_kr.c b/ext/mbstring/mbfilter_kr.c
index 93f44274f0..da4157d571 100644
--- a/ext/mbstring/mbfilter_kr.c
+++ b/ext/mbstring/mbfilter_kr.c
@@ -172,6 +172,205 @@ mbfl_filt_conv_wchar_euckr(int c, mbfl_convert_filter *filter TSRMLS_DC)
 	return c;
 }
 
+
+/*
+ * ISO-2022-KR => wchar
+ */
+int
+mbfl_filt_conv_2022kr_wchar(int c, mbfl_convert_filter *filter TSRMLS_DC)
+{
+	int c1, w, flag;
+
+retry:
+	switch (filter->status & 0xf) {
+		/* case 0x00: ASCII */
+		/* case 0x10: KSC5601 */
+	case 0:
+		if (c == 0x1b) { /* ESC */
+			filter->status += 2;
+		} else if (c == 0x0f) { /* SI (ASCII) */
+			filter->status &= ~0xff; 
+		} else if (c == 0x0e) { /* SO (KSC5601) */
+			filter->status |= 0x10; 
+		} else if ((filter->status & 0x10) != 0  && c > 0x20 && c < 0x7f) {
+			/* KSC5601 lead byte */
+			filter->cache = c;
+			filter->status += 1;
+		} else if ((filter->status & 0x10) == 0 &&  c >= 0 && c < 0x80) {
+			/* latin, CTLs */
+			CK((*filter->output_function)(c, filter->data TSRMLS_CC));
+		} else {
+			w = c & MBFL_WCSGROUP_MASK;
+			w |= MBFL_WCSGROUP_THROUGH;
+			CK((*filter->output_function)(w, filter->data TSRMLS_CC));
+		}
+		break;
+
+	case 1:		/* dbcs second byte */
+		filter->status &= ~0xf;
+		c1 = filter->cache;
+		flag = 0;
+		if (c1 > 0x20 && c1 < 0x47) {
+			flag = 1;
+		} else if (c1 >= 0x47 && c1 <= 0x7e && c1 != 0x49) {
+			flag = 2;
+		}
+		if (flag > 0 && c > 0x20 && c < 0x7f) {
+			if (flag == 1){
+				w = (c1 - 0x21)*178 + (c - 0x21) + 0x54;
+				if (w >= 0 && w < uhc2_ucs_table_size) {
+					w = uhc2_ucs_table[w];
+				} else {
+					w = 0;
+				}
+			} else {
+				if (c1 < 0x49){
+					w = (c1 - 0x47)*94 + c - 0x21;
+				} else {
+					w = (c1 - 0x48)*94 + c - 0x21;
+				}
+				if (w >= 0 && w < uhc3_ucs_table_size) {
+					w = uhc3_ucs_table[w];
+				} else {
+					w = 0;
+				}
+			}
+			
+			if (w <= 0) {
+				w = (c1 << 8) | c;
+				w &= MBFL_WCSPLANE_MASK;
+				w |= MBFL_WCSPLANE_KSC5601;
+			}
+			CK((*filter->output_function)(w, filter->data TSRMLS_CC));
+		} else if (c == 0x1b) {	 /* ESC */
+			filter->status++;
+		} else if ((c >= 0 && c < 0x21) || c == 0x7f) {		/* CTLs */
+			CK((*filter->output_function)(c, filter->data TSRMLS_CC));
+		} else {
+			w = (c1 << 8) | c;
+			w &= MBFL_WCSGROUP_MASK;
+			w |= MBFL_WCSGROUP_THROUGH;
+			CK((*filter->output_function)(w, filter->data TSRMLS_CC));
+		}
+		break;
+
+	case 2: 		/* ESC */
+		if (c == 0x24) { /* '$' */
+			filter->status++;
+		} else {
+			filter->status &= ~0xf;
+			CK((*filter->output_function)(0x1b, filter->data TSRMLS_CC));
+			goto retry;
+		}
+		break;
+	case 3:         /* ESC $ */
+		if (c == 0x29) { /* ')' */
+			filter->status++;
+		} else {
+			filter->status &= ~0xf;
+			CK((*filter->output_function)(0x1b, filter->data TSRMLS_CC));
+			CK((*filter->output_function)(0x24, filter->data TSRMLS_CC));
+			goto retry;
+		}
+		break;
+	case 4:         /* ESC $ )  */
+		if (c == 0x43) { /* 'C' */
+			filter->status &= ~0xf;
+			filter->status |= 0x100;
+		} else {
+			filter->status &= ~0xf;
+			CK((*filter->output_function)(0x1b, filter->data TSRMLS_CC));
+			CK((*filter->output_function)(0x24, filter->data TSRMLS_CC));
+			CK((*filter->output_function)(0x29, filter->data TSRMLS_CC));
+			goto retry;
+		}
+		break;
+	default:
+		filter->status = 0;
+		break;
+	}
+
+	return c;
+}
+
+/*
+ * wchar => ISO-2022-KR
+ */
+int
+mbfl_filt_conv_wchar_2022kr(int c, mbfl_convert_filter *filter TSRMLS_DC)
+{
+	int c1, c2, s;
+
+	s = 0;
+
+	if (c >= ucs_a1_uhc_table_min && c < ucs_a1_uhc_table_max) {
+		s = ucs_a1_uhc_table[c - ucs_a1_uhc_table_min];
+	} else if (c >= ucs_a2_uhc_table_min && c < ucs_a2_uhc_table_max) {
+		s = ucs_a2_uhc_table[c - ucs_a2_uhc_table_min];
+	} else if (c >= ucs_a3_uhc_table_min && c < ucs_a3_uhc_table_max) {
+		s = ucs_a3_uhc_table[c - ucs_a3_uhc_table_min];
+	} else if (c >= ucs_i_uhc_table_min && c < ucs_i_uhc_table_max) {
+		s = ucs_i_uhc_table[c - ucs_i_uhc_table_min];
+	} else if (c >= ucs_r1_uhc_table_min && c < ucs_r1_uhc_table_max) {
+		s = ucs_r1_uhc_table[c - ucs_r1_uhc_table_min];
+	} else if (c >= ucs_r2_uhc_table_min && c < ucs_r2_uhc_table_max) {
+		s = ucs_r2_uhc_table[c - ucs_r2_uhc_table_min];
+	}
+
+	c1 = (s >> 8) & 0xff;
+	c2 = s & 0xff;
+	/* exclude UHC extension area */
+	if (c1 < 0xa1 || c2 < 0xa1){ 
+		s = c;
+	}
+	if (s & 0x8000) {
+		s -= 0x8080;
+	}
+
+	if (s <= 0) {
+		c1 = c & ~MBFL_WCSPLANE_MASK;
+		if (c1 == MBFL_WCSPLANE_KSC5601) {
+			s = c & MBFL_WCSPLANE_MASK;
+		}
+		if (c == 0) {
+			s = 0;
+		} else if (s <= 0) {
+			s = -1;
+		}
+	} else if ((s >= 0x80 && s < 0x2121) || (s > 0x8080)) {
+		s = -1;
+	}
+	if (s >= 0) {
+		if (s < 0x80) {	/* ASCII */
+			if ((filter->status & 0x10) != 0) {
+				CK((*filter->output_function)(0x0f, filter->data TSRMLS_CC));		/* SI */
+				filter->status &= ~0x10;
+			}
+			CK((*filter->output_function)(s, filter->data TSRMLS_CC));
+		} else {
+			if ((filter->status & 0x10) == 0) {
+				CK((*filter->output_function)(0x0e, filter->data TSRMLS_CC));		/* SO */
+				filter->status |= 0x10;
+			}
+			if ( (filter->status & 0x100) == 0) {
+				CK((*filter->output_function)(0x1b, filter->data TSRMLS_CC));		/* ESC */
+				CK((*filter->output_function)(0x24, filter->data TSRMLS_CC));		/* '$' */
+				CK((*filter->output_function)(0x29, filter->data TSRMLS_CC));		/* ')' */
+				CK((*filter->output_function)(0x43, filter->data TSRMLS_CC));		/* 'C' */
+				filter->status |= 0x100;
+			}
+			CK((*filter->output_function)((s >> 8) & 0xff, filter->data TSRMLS_CC));
+			CK((*filter->output_function)(s & 0xff, filter->data TSRMLS_CC));
+		}
+	} else {
+		if (filter->illegal_mode != MBFL_OUTPUTFILTER_ILLEGAL_MODE_NONE) {
+			CK(mbfl_filt_conv_illegal_output(c, filter TSRMLS_CC));
+		}
+	}
+
+	return c;
+}
+
 /*
  * UHC => wchar
  */
@@ -314,6 +513,17 @@ mbfl_filt_conv_wchar_uhc(int c, mbfl_convert_filter *filter TSRMLS_DC)
 	return c;
 }
 
+int
+mbfl_filt_conv_any_2022kr_flush(mbfl_convert_filter *filter TSRMLS_DC)
+{
+	/* back to ascii */
+	if ((filter->status & 0xff00) != 0) {
+		CK((*filter->output_function)(0x0f, filter->data TSRMLS_CC));		/* SI */
+	}
+	filter->status &= 0xff;
+	return 0;
+}
+
 #endif /* HAVE_MBSTR_KR */
 
 /*
diff --git a/ext/mbstring/mbfilter_kr.h b/ext/mbstring/mbfilter_kr.h
index 22b7f5ed4b..34d0d54309 100644
--- a/ext/mbstring/mbfilter_kr.h
+++ b/ext/mbstring/mbfilter_kr.h
@@ -26,5 +26,8 @@ int mbfl_filt_conv_euckr_wchar(int c, mbfl_convert_filter *filter TSRMLS_DC);
 int mbfl_filt_conv_wchar_euckr(int c, mbfl_convert_filter *filter TSRMLS_DC);
 int mbfl_filt_conv_uhc_wchar(int c, mbfl_convert_filter *filter TSRMLS_DC);
 int mbfl_filt_conv_wchar_uhc(int c, mbfl_convert_filter *filter TSRMLS_DC);
+int mbfl_filt_conv_2022kr_wchar(int c, mbfl_convert_filter *filter TSRMLS_DC);
+int mbfl_filt_conv_wchar_2022kr(int c, mbfl_convert_filter *filter TSRMLS_DC);
+int mbfl_filt_conv_any_2022kr_flush(mbfl_convert_filter *filter TSRMLS_DC);
 
 #endif /* MBFL_MBFILTER_KR_H */
diff --git a/ext/mbstring/mbstring.c b/ext/mbstring/mbstring.c
index 5b40ff3f89..f5c1e02ebb 100644
--- a/ext/mbstring/mbstring.c
+++ b/ext/mbstring/mbstring.c
@@ -65,7 +65,7 @@
 #include "php_content_types.h"
 #include "SAPI.h"
 
-#ifdef ZEND_MULTIBYTE
+#if ZEND_MULTIBYTE
 #include "zend_multibyte.h"
 #endif /* ZEND_MULTIBYTE */