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29 lines
662 B
Go
29 lines
662 B
Go
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package db
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import (
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"strings"
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"unicode"
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)
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// 判断字符是否为字母、数字或下划线
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func isWordChar(r rune) bool {
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return unicode.IsLetter(r) || unicode.IsDigit(r) || r == '_'
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}
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// 获取一行文本中的第一个完整单词
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func getFirstWord(text string) string {
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fields := strings.FieldsFunc(text, func(r rune) bool { return !isWordChar(r) })
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if len(fields) > 0 {
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return fields[0]
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}
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return ""
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}
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// 获取一行文本中的最后一个完整单词
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func getLastWord(text string) string {
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fields := strings.FieldsFunc(text, func(r rune) bool { return !isWordChar(r) })
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if len(fields) > 0 {
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return fields[len(fields)-1]
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}
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return ""
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}
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