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Merge pull request #26 from rsteube/wordbreak-prefix
added wordbreak prefix
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,111 @@ | ||
| package shlex | ||
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| import "strconv" | ||
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| type TokenSlice []Token | ||
|
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| func (t TokenSlice) Strings() []string { | ||
| s := make([]string, 0, len(t)) | ||
| for _, token := range t { | ||
| s = append(s, token.Value) | ||
| } | ||
| return s | ||
| } | ||
|
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| func (t TokenSlice) Pipelines() []TokenSlice { | ||
| pipelines := make([]TokenSlice, 0) | ||
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| pipeline := make(TokenSlice, 0) | ||
| for _, token := range t { | ||
| switch { | ||
| case token.Type == WORDBREAK_TOKEN && wordbreakType(token).IsPipelineDelimiter(): | ||
| pipelines = append(pipelines, pipeline) | ||
| pipeline = make(TokenSlice, 0) | ||
| default: | ||
| pipeline = append(pipeline, token) | ||
| } | ||
| } | ||
| return append(pipelines, pipeline) | ||
| } | ||
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| func (t TokenSlice) CurrentPipeline() TokenSlice { | ||
| pipelines := t.Pipelines() | ||
| return pipelines[len(pipelines)-1] | ||
| } | ||
|
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| func (t TokenSlice) Words() TokenSlice { | ||
| words := make(TokenSlice, 0) | ||
| for index, token := range t { | ||
| switch { | ||
| case index == 0: | ||
| words = append(words, token) | ||
| case t[index-1].adjoins(token): | ||
| words[len(words)-1].Value += token.Value | ||
| words[len(words)-1].RawValue += token.RawValue | ||
| words[len(words)-1].State = token.State | ||
| default: | ||
| words = append(words, token) | ||
| } | ||
| } | ||
| return words | ||
| } | ||
|
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| func (t TokenSlice) FilterRedirects() TokenSlice { | ||
| filtered := make(TokenSlice, 0) | ||
| for index, token := range t { | ||
| switch token.Type { | ||
| case WORDBREAK_TOKEN: | ||
| if wordbreakType(token).IsRedirect() { | ||
| continue | ||
| } | ||
| } | ||
|
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| if index > 0 { | ||
| if wordbreakType(t[index-1]).IsRedirect() { | ||
| continue | ||
| } | ||
| } | ||
|
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| if index < len(t)-1 { | ||
| next := t[index+1] | ||
| if token.adjoins(next) { | ||
| if _, err := strconv.Atoi(token.RawValue); err == nil { | ||
| if wordbreakType(t[index+1]).IsRedirect() { | ||
| continue | ||
| } | ||
| } | ||
| } | ||
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| } | ||
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| filtered = append(filtered, token) | ||
| } | ||
| return filtered | ||
| } | ||
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| func (t TokenSlice) CurrentToken() (token Token) { | ||
| if len(t) > 0 { | ||
| token = t[len(t)-1] | ||
| } | ||
| return | ||
| } | ||
|
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| func (t TokenSlice) WordbreakPrefix() string { | ||
| found := false | ||
| prefix := "" | ||
| for i := len(t) - 2; i >= 0; i-- { | ||
| token := t[i] | ||
| if !token.adjoins(t[i+1]) { | ||
| break | ||
| } | ||
|
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| if token.Type == WORDBREAK_TOKEN { | ||
| found = true | ||
| } | ||
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| if found { | ||
| prefix = token.Value + prefix | ||
| } | ||
| } | ||
| return prefix | ||
| } |