1 files changed, 0 insertions, 212 deletions
diff --git a/src/cmd/godoc/spec.go b/src/cmd/godoc/spec.go
deleted file mode 100644
index 444e36e08..000000000
--- a/src/cmd/godoc/spec.go
+++ /dev/null
@@ -1,212 +0,0 @@
-// Copyright 2009 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// This file contains the mechanism to "linkify" html source
-// text containing EBNF sections (as found in go_spec.html).
-// The result is the input source text with the EBNF sections
-// modified such that identifiers are linked to the respective
-// definitions.
-
-package main
-
-import (
-	"bytes"
-	"fmt"
-	"go/scanner"
-	"go/token"
-	"io"
-)
-
-
-type ebnfParser struct {
-	out     io.Writer   // parser output
-	src     []byte      // parser source
-	file    *token.File // for position information
-	scanner scanner.Scanner
-	prev    int         // offset of previous token
-	pos     token.Pos   // token position
-	tok     token.Token // one token look-ahead
-	lit     string      // token literal
-}
-
-
-func (p *ebnfParser) flush() {
-	offs := p.file.Offset(p.pos)
-	p.out.Write(p.src[p.prev:offs])
-	p.prev = offs
-}
-
-
-func (p *ebnfParser) next() {
-	if p.pos.IsValid() {
-		p.flush()
-	}
-	p.pos, p.tok, p.lit = p.scanner.Scan()
-	if p.tok.IsKeyword() {
-		// TODO Should keyword mapping always happen outside scanner?
-		//      Or should there be a flag to scanner to enable keyword mapping?
-		p.tok = token.IDENT
-	}
-}
-
-
-func (p *ebnfParser) Error(pos token.Position, msg string) {
-	fmt.Fprintf(p.out, `<span class="alert">error: %s</span>`, msg)
-}
-
-
-func (p *ebnfParser) errorExpected(pos token.Pos, msg string) {
-	msg = "expected " + msg
-	if pos == p.pos {
-		// the error happened at the current position;
-		// make the error message more specific
-		msg += ", found '" + p.tok.String() + "'"
-		if p.tok.IsLiteral() {
-			msg += " " + p.lit
-		}
-	}
-	p.Error(p.file.Position(pos), msg)
-}
-
-
-func (p *ebnfParser) expect(tok token.Token) token.Pos {
-	pos := p.pos
-	if p.tok != tok {
-		p.errorExpected(pos, "'"+tok.String()+"'")
-	}
-	p.next() // make progress in any case
-	return pos
-}
-
-
-func (p *ebnfParser) parseIdentifier(def bool) {
-	name := p.lit
-	p.expect(token.IDENT)
-	if def {
-		fmt.Fprintf(p.out, `<a id="%s">%s</a>`, name, name)
-	} else {
-		fmt.Fprintf(p.out, `<a href="#%s" class="noline">%s</a>`, name, name)
-	}
-	p.prev += len(name) // skip identifier when calling flush
-}
-
-
-func (p *ebnfParser) parseTerm() bool {
-	switch p.tok {
-	case token.IDENT:
-		p.parseIdentifier(false)
-
-	case token.STRING:
-		p.next()
-		const ellipsis = "…" // U+2026, the horizontal ellipsis character
-		if p.tok == token.ILLEGAL && p.lit == ellipsis {
-			p.next()
-			p.expect(token.STRING)
-		}
-
-	case token.LPAREN:
-		p.next()
-		p.parseExpression()
-		p.expect(token.RPAREN)
-
-	case token.LBRACK:
-		p.next()
-		p.parseExpression()
-		p.expect(token.RBRACK)
-
-	case token.LBRACE:
-		p.next()
-		p.parseExpression()
-		p.expect(token.RBRACE)
-
-	default:
-		return false
-	}
-
-	return true
-}
-
-
-func (p *ebnfParser) parseSequence() {
-	if !p.parseTerm() {
-		p.errorExpected(p.pos, "term")
-	}
-	for p.parseTerm() {
-	}
-}
-
-
-func (p *ebnfParser) parseExpression() {
-	for {
-		p.parseSequence()
-		if p.tok != token.OR {
-			break
-		}
-		p.next()
-	}
-}
-
-
-func (p *ebnfParser) parseProduction() {
-	p.parseIdentifier(true)
-	p.expect(token.ASSIGN)
-	if p.tok != token.PERIOD {
-		p.parseExpression()
-	}
-	p.expect(token.PERIOD)
-}
-
-
-func (p *ebnfParser) parse(fset *token.FileSet, out io.Writer, src []byte) {
-	// initialize ebnfParser
-	p.out = out
-	p.src = src
-	p.file = fset.AddFile("", fset.Base(), len(src))
-	p.scanner.Init(p.file, src, p, scanner.AllowIllegalChars)
-	p.next() // initializes pos, tok, lit
-
-	// process source
-	for p.tok != token.EOF {
-		p.parseProduction()
-	}
-	p.flush()
-}
-
-
-// Markers around EBNF sections
-var (
-	openTag  = []byte(`<pre class="ebnf">`)
-	closeTag = []byte(`</pre>`)
-)
-
-
-func linkify(out io.Writer, src []byte) {
-	fset := token.NewFileSet()
-	for len(src) > 0 {
-		n := len(src)
-
-		// i: beginning of EBNF text (or end of source)
-		i := bytes.Index(src, openTag)
-		if i < 0 {
-			i = n - len(openTag)
-		}
-		i += len(openTag)
-
-		// j: end of EBNF text (or end of source)
-		j := bytes.Index(src[i:n], closeTag) // close marker
-		if j < 0 {
-			j = n - i
-		}
-		j += i
-
-		// write text before EBNF
-		out.Write(src[0:i])
-		// parse and write EBNF
-		var p ebnfParser
-		p.parse(fset, out, src[i:j])
-
-		// advance
-		src = src[j:n]
-	}
-}