build(deps): bump github.com/olekukonko/tablewriter from 1.1.0 to 1.1.1
Bumps [github.com/olekukonko/tablewriter](https://github.com/olekukonko/tablewriter) from 1.1.0 to 1.1.1. - [Commits](https://github.com/olekukonko/tablewriter/compare/v1.1.0...v1.1.1) --- updated-dependencies: - dependency-name: github.com/olekukonko/tablewriter dependency-version: 1.1.1 dependency-type: direct:production update-type: version-update:semver-patch ... Signed-off-by: dependabot[bot] <support@github.com>
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committed by
Ralf Haferkamp
parent
9d173f0ea6
commit
28148d02bd
+159
@@ -0,0 +1,159 @@
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package displaywidth
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import (
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"unicode/utf8"
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"github.com/clipperhouse/stringish"
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"github.com/clipperhouse/uax29/v2/graphemes"
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)
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// String calculates the display width of a string
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// using the [DefaultOptions]
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func String(s string) int {
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return DefaultOptions.String(s)
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}
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// Bytes calculates the display width of a []byte
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// using the [DefaultOptions]
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func Bytes(s []byte) int {
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return DefaultOptions.Bytes(s)
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}
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func Rune(r rune) int {
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return DefaultOptions.Rune(r)
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}
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type Options struct {
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EastAsianWidth bool
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StrictEmojiNeutral bool
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}
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var DefaultOptions = Options{
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EastAsianWidth: false,
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StrictEmojiNeutral: true,
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}
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// String calculates the display width of a string
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// for the given options
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func (options Options) String(s string) int {
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if len(s) == 0 {
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return 0
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}
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total := 0
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g := graphemes.FromString(s)
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for g.Next() {
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// The first character in the grapheme cluster determines the width;
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// modifiers and joiners do not contribute to the width.
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props, _ := lookupProperties(g.Value())
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total += props.width(options)
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}
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return total
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}
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// BytesOptions calculates the display width of a []byte
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// for the given options
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func (options Options) Bytes(s []byte) int {
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if len(s) == 0 {
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return 0
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}
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total := 0
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g := graphemes.FromBytes(s)
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for g.Next() {
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// The first character in the grapheme cluster determines the width;
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// modifiers and joiners do not contribute to the width.
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props, _ := lookupProperties(g.Value())
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total += props.width(options)
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}
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return total
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}
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func (options Options) Rune(r rune) int {
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// Fast path for ASCII
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if r < utf8.RuneSelf {
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if isASCIIControl(byte(r)) {
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// Control (0x00-0x1F) and DEL (0x7F)
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return 0
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}
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// ASCII printable (0x20-0x7E)
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return 1
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}
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// Surrogates (U+D800-U+DFFF) are invalid UTF-8 and have zero width
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// Other packages might turn them into the replacement character (U+FFFD)
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// in which case, we won't see it.
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if r >= 0xD800 && r <= 0xDFFF {
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return 0
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}
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// Stack-allocated to avoid heap allocation
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var buf [4]byte // UTF-8 is at most 4 bytes
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n := utf8.EncodeRune(buf[:], r)
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// Skip the grapheme iterator and directly lookup properties
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props, _ := lookupProperties(buf[:n])
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return props.width(options)
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}
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func isASCIIControl(b byte) bool {
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return b < 0x20 || b == 0x7F
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}
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const defaultWidth = 1
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// is returns true if the property flag is set
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func (p property) is(flag property) bool {
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return p&flag != 0
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}
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// lookupProperties returns the properties for the first character in a string
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func lookupProperties[T stringish.Interface](s T) (property, int) {
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if len(s) == 0 {
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return 0, 0
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}
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// Fast path for ASCII characters (single byte)
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b := s[0]
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if b < utf8.RuneSelf { // Single-byte ASCII
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if isASCIIControl(b) {
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// Control characters (0x00-0x1F) and DEL (0x7F) - width 0
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return _ZeroWidth, 1
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}
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// ASCII printable characters (0x20-0x7E) - width 1
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// Return 0 properties, width calculation will default to 1
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return 0, 1
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}
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// Use the generated trie for lookup
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props, size := lookup(s)
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return property(props), size
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}
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// width determines the display width of a character based on its properties
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// and configuration options
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func (p property) width(options Options) int {
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if p == 0 {
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// Character not in trie, use default behavior
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return defaultWidth
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}
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if p.is(_ZeroWidth) {
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return 0
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}
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if options.EastAsianWidth {
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if p.is(_East_Asian_Ambiguous) {
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return 2
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}
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if p.is(_East_Asian_Ambiguous|_Emoji) && !options.StrictEmojiNeutral {
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return 2
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}
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}
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if p.is(_East_Asian_Full_Wide) {
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return 2
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}
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// Default width for all other characters
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return defaultWidth
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}
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