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master @ 71 LINES
 
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package utils

import (
	"strings"
	"unicode"
)

// SafeSlugName converts an arbitrary player name to a safe lowercase filename wit
hout path separators.
// It preserves Unicode letters/numbers (including diacritics), matching frontend 
expectations
// that URLs may contain non-ASCII characters. Only path separators are removed an
d spaces -> '-'.
func SafeSlugName(s string) string {
	s = strings.ToLower(strings.TrimSpace(s))

	// Replace path separators explicitly
	s = strings.ReplaceAll(s, "/", "-")
	s = strings.ReplaceAll(s, "\\", "-")

	// Allow unicode letters/digits and '-', '_' ; replace spaces with '-'
	out := make([]rune, 0, len(s))
	for _, r := range s {
		if r == ' ' {
			out = append(out, '-')
			continue
		}
		if r == '-' || r == '_' {
			out = append(out, r)
			continue
		}
		// Keep unicode letters and digits; drop other punctuation/symbols
		if unicode.IsLetter(r) || unicode.IsDigit(r) {
			out = append(out, r)
			continue
		}
		// else: drop
	}

	// Collapse multiple dashes
	cleaned := collapseDashes(out)

	if len(cleaned) == 0 {
		return "player"
	}

	// Trim leading/trailing '-'
	return strings.Trim(string(cleaned), "-")
}

// collapseDashes removes consecutive dashes, keeping only one
func collapseDashes(runes []rune) []rune {
	if len(runes) == 0 {
		return runes
	}

	cleaned := make([]rune, 0, len(runes))
	prevDash := false

	for _, r := range runes {
		if r == '-' {
			if !prevDash {
				cleaned = append(cleaned, r)
			}
			prevDash = true
		} else {
			cleaned = append(cleaned, r)
			prevDash = false
		}
	}

	return cleaned
}


package utils

import (
	"strings"
	"unicode"
)

// SafeSlugName converts an arbitrary player
 name to a safe lowercase filename without p
ath separators.
// It preserves Unicode letters/numbers (inc
luding diacritics), matching frontend expect
ations
// that URLs may contain non-ASCII character
s. Only path separators are removed and spac
es -> '-'.
func SafeSlugName(s string) string {
	s = strings.ToLower(strings.TrimSpace(s))

	// Replace path separators explicitly
	s = strings.ReplaceAll(s, "/", "-")
	s = strings.ReplaceAll(s, "\\", "-")

	// Allow unicode letters/digits and '-', '_
' ; replace spaces with '-'
	out := make([]rune, 0, len(s))
	for _, r := range s {
		if r == ' ' {
			out = append(out, '-')
			continue
		}
		if r == '-' || r == '_' {
			out = append(out, r)
			continue
		}
		// Keep unicode letters and digits; drop o
ther punctuation/symbols
		if unicode.IsLetter(r) || unicode.IsDigit(
r) {
			out = append(out, r)
			continue
		}
		// else: drop
	}

	// Collapse multiple dashes
	cleaned := collapseDashes(out)

	if len(cleaned) == 0 {
		return "player"
	}

	// Trim leading/trailing '-'
	return strings.Trim(string(cleaned), "-")
}

// collapseDashes removes consecutive dashes
, keeping only one
func collapseDashes(runes []rune) []rune {
	if len(runes) == 0 {
		return runes
	}

	cleaned := make([]rune, 0, len(runes))
	prevDash := false

	for _, r := range runes {
		if r == '-' {
			if !prevDash {
				cleaned = append(cleaned, r)
			}
			prevDash = true
		} else {
			cleaned = append(cleaned, r)
			prevDash = false
		}
	}

	return cleaned
}

 
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