encoding.utf8: remove const unicode_con_table_up_to_low table (#9672)

cmd/tools/vtest-cleancode.v

@@ -43,6 +43,7 @@ const (
 		'vlib/builtin/',
 		'vlib/cli/',
 		'vlib/dl/',
+		'vlib/encoding/utf8/',
 		'vlib/flag/',
 		'vlib/gg/',
 		'vlib/math/bits/bits.v',

vlib/encoding/utf8/east_asian/east_asian_width.v

@@ -37,7 +37,7 @@ pub fn east_asian_width_property_at(s string, index int) EastAsianWidthProperty
 	mut left, mut right := 0, east_asian.east_asian_width_data.len - 1
 	for left <= right {
 		middle := left + ((right - left) / 2)
-		entry := east_asian_width_data[middle]
+		entry := east_asian.east_asian_width_data[middle]
 		if codepoint < entry.point {
 			right = middle - 1
 			continue

vlib/encoding/utf8/utf8.v

@@ -11,10 +11,10 @@ pub fn validate_str(str string) bool {
 	return validate(str.str, str.len)
 }
 
-pub fn validate(data byteptr, len int) bool {
+pub fn validate(data &byte, len int) bool {
 	mut state := Utf8State{}
 	for i := 0; i < len; i++ {
-		s := unsafe {data[i]}
+		s := unsafe { data[i] }
 		if s == 0 {
 			break
 		}

vlib/encoding/utf8/utf8_util_test.v

@@ -1,58 +1,57 @@
 import encoding.utf8
 
 fn test_utf8_util() {
-
 	// string test
-	src:="ăĂ ôÔ testo 怔"//_\u1E5A\u1E5B<=>\u1F49\u1F41<=>\u0128\u012a\u012c" // len 29 runes, raw 49 bytes
+	src := 'ăĂ ôÔ testo 怔' //_\u1E5A\u1E5B<=>\u1F49\u1F41<=>\u0128\u012a\u012c" // len 29 runes, raw 49 bytes
-	src_upper:="ĂĂ ÔÔ TESTO Æ€”"//_\u1E5A\u1E5A<=>\u1F49\u1F49<=>\u0128\u012A\u012C"
+	src_upper := 'ĂĂ ÔÔ TESTO Æ€”' //_\u1E5A\u1E5A<=>\u1F49\u1F49<=>\u0128\u012A\u012C"
-	src_lower:="ăă ôô testo 怔"//_\u1E5B\u1E5B<=>\u1F41\u1F41<=>\u0129\u012B\u012D"
+	src_lower := 'ăă ôô testo 怔' //_\u1E5B\u1E5B<=>\u1F41\u1F41<=>\u0129\u012B\u012D"
-	upper:=utf8.to_upper(src)
+	upper := utf8.to_upper(src)
-	lower:=utf8.to_lower(src)
+	lower := utf8.to_lower(src)
-	assert upper==src_upper
+	assert upper == src_upper
-	assert lower==src_lower
+	assert lower == src_lower
 
 	assert utf8.to_upper('абвёabc12｛') == 'АБВЁABC12｛'
 	assert utf8.to_lower('АБВЁABC12｛') == 'абвёabc12｛'
 
 	// ustring test
-	src1:=src.ustring()
+	src1 := src.ustring()
-	upper1:=utf8.u_to_upper(src1)
+	upper1 := utf8.u_to_upper(src1)
-	lower1:=utf8.u_to_lower(src1)
+	lower1 := utf8.u_to_lower(src1)
-	assert upper1==( src_upper.ustring() )
+	assert upper1 == (src_upper.ustring())
-	assert lower1==( src_lower.ustring() )
+	assert lower1 == (src_lower.ustring())
 
 	// test len function
-	assert utf8.len("pippo")==5
+	assert utf8.len('pippo') == 5
-	assert utf8.len(src)==15 //29
+	assert utf8.len(src) == 15 // 29
-	assert src.len==24 //49
+	assert src.len == 24 // 49
 	// test u_len function
-	assert utf8.u_len(src1)==15 //29
+	assert utf8.u_len(src1) == 15 // 29
-	assert utf8.u_len("pippo".ustring())==5
+	assert utf8.u_len('pippo'.ustring()) == 5
 
 	// western punctuation
 	a := '.abc?abcòàè.'
-  	assert utf8.is_punct(a,0)==true
+	assert utf8.is_punct(a, 0) == true
-  	assert utf8.is_punct('b',0)==false
+	assert utf8.is_punct('b', 0) == false
-  	assert utf8.is_uchar_punct(0x002E)==true 
+	assert utf8.is_uchar_punct(0x002E) == true
-  	assert utf8.is_punct(a,4)==true		// ?
+	assert utf8.is_punct(a, 4) == true // ?
-  	assert utf8.is_punct(a,14)==true		// last .
+	assert utf8.is_punct(a, 14) == true // last .
-  	assert utf8.is_punct(a,12)==false	// è
+	assert utf8.is_punct(a, 12) == false // è
-  	println("OK western")
+	println('OK western')
 
 	// global punctuation
 	b := '.ĂĂa. ÔÔ TESTO Æ€'
-  	assert utf8.is_global_punct(b,0)==true
+	assert utf8.is_global_punct(b, 0) == true
-  	assert utf8.is_global_punct('.',0)==true
+	assert utf8.is_global_punct('.', 0) == true
-  	assert utf8.is_uchar_punct(0x002E)==true
+	assert utf8.is_uchar_punct(0x002E) == true
-  	assert utf8.is_global_punct(b,6)==true	// .
+	assert utf8.is_global_punct(b, 6) == true // .
-  	assert utf8.is_global_punct(b,1)==false	// a
+	assert utf8.is_global_punct(b, 1) == false // a
 
 	// test utility functions
-  	assert utf8.get_uchar(b,0)==0x002E
+	assert utf8.get_uchar(b, 0) == 0x002E
 }
 
 fn test_raw_indexing() {
-	a := "我是V Lang!"
+	a := '我是V Lang!'
 
 	// test non ascii characters
 	assert utf8.raw_index(a, 0) == '我'