94 lines
1.5 KiB
Go
94 lines
1.5 KiB
Go
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package reply
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import (
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re2 "github.com/dlclark/regexp2"
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)
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const (
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delimiter = "d"
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embedded = "b"
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empty = "e"
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header = "h"
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quote = "q"
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signature = "s"
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text = "t"
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)
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func classifyLine(line string) string {
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if isEmptyLine(line) {
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return empty
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}
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if isDelimiter(line) {
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return delimiter
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}
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if isSignature(line) {
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return signature
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}
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if isEmbeddedEmail(line) {
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return embedded
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}
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if isHeader(line) {
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return header
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}
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if isQuote(line) {
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return quote
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}
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return text
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}
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func isEmptyLine(line string) bool {
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ok, _ := re2.MustCompile(`^[[:blank:]]*$`, re2.RE2).MatchString(line)
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return ok
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}
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func isQuote(line string) bool {
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ok, _ := re2.MustCompile(`^[[:blank:]]*>`, re2.RE2).MatchString(line)
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return ok
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}
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func isDelimiter(line string) bool {
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ok, _ := re2.MustCompile(`^[[:blank:]]*([_,=+~#*ᐧ—]+|[\-]{4,}|[\-]+[[:blank:]])[[:blank:]]*$`, re2.RE2).MatchString(line)
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return ok
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}
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func isSignature(line string) bool {
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// remove any markdown links
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stripped, _ := re2.MustCompile(`\[([^\]]+)\]\([^\)]+\)`, re2.RE2).Replace(line, "$1", 0, -1)
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for _, r := range patterns["SIGNATURE_REGEXES"] {
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ok, _ := r.MatchString(stripped)
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if ok {
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return true
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}
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}
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return false
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}
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func isHeader(line string) bool {
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for _, r := range patterns["EMAIL_HEADER_REGEXES"] {
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ok, _ := r.MatchString(line)
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if ok {
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return true
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}
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}
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return false
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}
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func isEmbeddedEmail(line string) bool {
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for _, r := range patterns["EMBEDDED_REGEXES"] {
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ok, _ := r.MatchString(line)
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if ok {
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return true
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}
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}
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return false
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}
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