move dumper to visitor package
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21
README.md
21
README.md
@ -18,6 +18,27 @@ A Parser for PHP written in Go inspired by [Nikic PHP Parser](https://github.com
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- Abstract syntax tree representation
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- Traversing AST
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## Example
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```Golang
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package main
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import (
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"bytes"
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"github.com/z7zmey/php-parser/parser"
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"github.com/z7zmey/php-parser/visitor"
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)
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func main() {
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src := `<? echo "Hello world";`
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nodes, comments, positions := parser.Parse(bytes.NewBufferString(src), "example.php")
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visitor := visitor.Dumper{" | ", comments, positions}
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nodes.Walk(visitor)
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}
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```
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## Roadmap
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- [X] Lexer
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- [x] PHP 7 syntax analyzer (completely)
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47
dumper.go
47
dumper.go
@ -1,47 +0,0 @@
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package main
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import (
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"fmt"
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"reflect"
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"github.com/z7zmey/php-parser/position"
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"github.com/z7zmey/php-parser/comment"
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"github.com/z7zmey/php-parser/node"
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)
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type dumper struct {
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indent string
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comments comment.Comments
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positions position.Positions
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}
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func (d dumper) EnterNode(n node.Node) bool {
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fmt.Printf("%v%v", d.indent, reflect.TypeOf(n))
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if p := d.positions[n]; p != nil {
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fmt.Printf(" %v", *p)
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}
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if a := n.Attributes(); len(a) > 0 {
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fmt.Printf(" %v", a)
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}
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fmt.Println()
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if c := d.comments[n]; len(c) > 0 {
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fmt.Printf("%vcomments:\n", d.indent+" ")
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for _, cc := range c {
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fmt.Printf("%v%q\n", d.indent+" ", cc)
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}
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}
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return true
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}
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func (d dumper) GetChildrenVisitor(key string) node.Visitor {
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fmt.Printf("%v%q:\n", d.indent+" ", key)
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return dumper{d.indent + " ", d.comments, d.positions}
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}
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func (d dumper) LeaveNode(n node.Node) {
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// do nothing
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}
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7
main.go
7
main.go
@ -9,6 +9,7 @@ import (
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"github.com/yookoala/realpath"
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"github.com/z7zmey/php-parser/parser"
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"github.com/z7zmey/php-parser/visitor"
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)
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func main() {
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@ -25,7 +26,11 @@ func main() {
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src, _ := os.Open(string(path))
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nodes, comments, positions := parser.Parse(src, path)
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visitor := dumper{" | ", comments, positions}
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visitor := visitor.Dumper{
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Indent: " | ",
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Comments: comments,
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Positions: positions,
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}
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nodes.Walk(visitor)
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}
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return nil
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47
visitor/dumper.go
Normal file
47
visitor/dumper.go
Normal file
@ -0,0 +1,47 @@
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package visitor
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import (
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"fmt"
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"reflect"
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"github.com/z7zmey/php-parser/position"
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"github.com/z7zmey/php-parser/comment"
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"github.com/z7zmey/php-parser/node"
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)
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type Dumper struct {
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Indent string
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Comments comment.Comments
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Positions position.Positions
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}
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func (d Dumper) EnterNode(n node.Node) bool {
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fmt.Printf("%v%v", d.Indent, reflect.TypeOf(n))
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if p := d.Positions[n]; p != nil {
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fmt.Printf(" %v", *p)
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}
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if a := n.Attributes(); len(a) > 0 {
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fmt.Printf(" %v", a)
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}
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fmt.Println()
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if c := d.Comments[n]; len(c) > 0 {
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fmt.Printf("%vComments:\n", d.Indent+" ")
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for _, cc := range c {
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fmt.Printf("%v%q\n", d.Indent+" ", cc)
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}
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}
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return true
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}
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func (d Dumper) GetChildrenVisitor(key string) node.Visitor {
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fmt.Printf("%v%q:\n", d.Indent+" ", key)
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return Dumper{d.Indent + " ", d.Comments, d.Positions}
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}
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func (d Dumper) LeaveNode(n node.Node) {
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// do nothing
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}
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