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// SPDX-License-Identifier: AGPL-3.0-only
// SPDX-FileCopyrightText: Copyright (c) 2025 Runxi Yu <https://runxiyu.org>
package misc
import (
"net/url"
"strings"
)
// These are all trivial functions that are intended to be used in HTML
// templates.
// FirstLine returns the first line of a string.
func FirstLine(s string) string {
before, _, _ := strings.Cut(s, "\n")
return before
}
// PathEscape escapes the input as an URL path segment.
func PathEscape(s string) string {
return url.PathEscape(s)
}
// QueryEscape escapes the input as an URL query segment.
func QueryEscape(s string) string {
return url.QueryEscape(s)
}
// Dereference dereferences a pointer.
func Dereference[T any](p *T) T {
return *p
}
// DereferenceOrZero dereferences a pointer. If the pointer is nil, the zero
// value of its associated type is returned instead.
func DereferenceOrZero[T any](p *T) T {
if p != nil {
return *p
}
var z T
return z
}
// Minus subtracts two numbers.
func Minus(a, b int) int {
return a - b
}
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