Brendan LE GLAUNEC
5849898283
Unit tests functional and coverage back to 100% Add more routes to dictionary, add more credentials, add default port 5554, rename cameradar logs ENV variable, improve unit test readability, remove tmp file
96 lines
1.9 KiB
Go
96 lines
1.9 KiB
Go
// Copyright 2018 Frank Schroeder. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package properties
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import (
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"fmt"
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"runtime"
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)
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type parser struct {
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lex *lexer
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}
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func parse(input string) (properties *Properties, err error) {
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p := &parser{lex: lex(input)}
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defer p.recover(&err)
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properties = NewProperties()
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key := ""
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comments := []string{}
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for {
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token := p.expectOneOf(itemComment, itemKey, itemEOF)
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switch token.typ {
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case itemEOF:
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goto done
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case itemComment:
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comments = append(comments, token.val)
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continue
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case itemKey:
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key = token.val
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if _, ok := properties.m[key]; !ok {
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properties.k = append(properties.k, key)
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}
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}
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token = p.expectOneOf(itemValue, itemEOF)
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if len(comments) > 0 {
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properties.c[key] = comments
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comments = []string{}
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}
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switch token.typ {
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case itemEOF:
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properties.m[key] = ""
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goto done
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case itemValue:
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properties.m[key] = token.val
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}
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}
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done:
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return properties, nil
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}
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func (p *parser) errorf(format string, args ...interface{}) {
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format = fmt.Sprintf("properties: Line %d: %s", p.lex.lineNumber(), format)
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panic(fmt.Errorf(format, args...))
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}
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func (p *parser) expect(expected itemType) (token item) {
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token = p.lex.nextItem()
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if token.typ != expected {
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p.unexpected(token)
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}
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return token
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}
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func (p *parser) expectOneOf(expected ...itemType) (token item) {
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token = p.lex.nextItem()
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for _, v := range expected {
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if token.typ == v {
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return token
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}
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}
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p.unexpected(token)
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panic("unexpected token")
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}
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func (p *parser) unexpected(token item) {
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p.errorf(token.String())
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}
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// recover is the handler that turns panics into returns from the top level of Parse.
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func (p *parser) recover(errp *error) {
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e := recover()
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if e != nil {
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if _, ok := e.(runtime.Error); ok {
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panic(e)
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}
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*errp = e.(error)
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}
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return
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}
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