111 lines
1.8 KiB
Go
111 lines
1.8 KiB
Go
package extractx
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import (
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"regexp"
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"strconv"
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"strings"
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)
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var rxNumber = regexp.MustCompile(`\-?\d+[\d.,]*\d*`)
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// 提取的内容默认为 1,234.56 格式的数字，未实现根据国家标准实现提取
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// https://zhuanlan.zhihu.com/p/157980325
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func clean(s string) string {
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s = strings.TrimSpace(s)
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if s == "" {
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return s
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}
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s = strings.ReplaceAll(s, ",", "")
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n := len(s)
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if s[n-1:] == "." {
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s = s[n-2 : n-1]
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}
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return s
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}
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func Number(s string) string {
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if s == "" {
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return ""
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}
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return clean(rxNumber.FindString(s))
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}
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func Numbers(s string) []string {
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if s == "" {
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return []string{}
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}
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matches := rxNumber.FindAllString(s, -1)
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if matches == nil {
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return []string{}
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}
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for i, v := range matches {
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matches[i] = clean(v)
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}
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return matches
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}
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func Float64(s string) float64 {
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if s = Number(s); s != "" {
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if v, err := strconv.ParseFloat(s, 64); err == nil {
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return v
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}
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}
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return 0
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}
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func Float32(s string) float32 {
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if s = Number(s); s != "" {
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if v, err := strconv.ParseFloat(s, 64); err == nil {
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return float32(v)
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}
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}
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return 0
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}
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func Int64(s string) int64 {
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if s = Number(s); s != "" {
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if v, err := strconv.ParseInt(s, 10, 64); err == nil {
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return v
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}
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}
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return 0
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}
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func Int32(s string) int32 {
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if s = Number(s); s != "" {
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if v, err := strconv.ParseInt(s, 10, 32); err == nil {
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return int32(v)
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}
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}
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return 0
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}
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func Int16(s string) int16 {
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if s = Number(s); s != "" {
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if v, err := strconv.ParseInt(s, 10, 16); err == nil {
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return int16(v)
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}
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}
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return 0
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}
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func Int8(s string) int8 {
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if s = Number(s); s != "" {
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if v, err := strconv.ParseInt(s, 10, 16); err == nil {
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return int8(v)
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}
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}
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return 0
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}
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func Int(s string) int {
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if s = Number(s); s != "" {
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if v, err := strconv.ParseInt(s, 10, 16); err == nil {
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return int(v)
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}
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}
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return 0
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}
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