54 lines
1.3 KiB
Go
54 lines
1.3 KiB
Go
package sanitize
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import (
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"regexp"
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"strings"
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)
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// spaced returns the string padded with a space left and right.
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func spaced(s string) string {
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return Space + s + Space
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}
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// replace performs a case-insensitive string replacement.
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func replace(subject string, search string, replace string) string {
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return regexp.MustCompile("(?i)"+search).ReplaceAllString(subject, replace)
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}
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// SearchString replaces search operator with default symbols.
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func SearchString(s string) string {
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if s == "" || reject(s, MaxLength) {
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return Empty
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}
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// Normalize.
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s = strings.ReplaceAll(s, "%%", "%")
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s = strings.ReplaceAll(s, "%", "*")
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s = strings.ReplaceAll(s, "**", "*")
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// Trim.
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return strings.Trim(s, "&|\\<>\n\r\t")
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}
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// SearchQuery replaces search operator with default symbols.
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func SearchQuery(s string) string {
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if s == "" || reject(s, MaxLength) {
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return Empty
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}
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// Normalize.
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s = replace(s, spaced(EnOr), Or)
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s = replace(s, spaced(EnOr), Or)
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s = replace(s, spaced(EnAnd), And)
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s = replace(s, spaced(EnWith), And)
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s = replace(s, spaced(EnIn), And)
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s = replace(s, spaced(EnAt), And)
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s = strings.ReplaceAll(s, SpacedPlus, And)
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s = strings.ReplaceAll(s, "%%", "%")
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s = strings.ReplaceAll(s, "%", "*")
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s = strings.ReplaceAll(s, "**", "*")
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// Trim.
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return strings.Trim(s, "+&|-=$^(){}\\<>,;: \n\r\t")
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}
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