1 files changed, 0 insertions, 179 deletions
diff --git a/src/cmd/godoc/spec.go b/src/cmd/godoc/spec.go
deleted file mode 100644
index c11f25d20..000000000
--- a/src/cmd/godoc/spec.go
+++ /dev/null
@@ -1,179 +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.
-
-package main
-
-// 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.
-
-import (
-	"bytes"
-	"fmt"
-	"io"
-	"text/scanner"
-)
-
-type ebnfParser struct {
-	out     io.Writer // parser output
-	src     []byte    // parser input
-	scanner scanner.Scanner
-	prev    int    // offset of previous token
-	pos     int    // offset of current token
-	tok     rune   // one token look-ahead
-	lit     string // token literal
-}
-
-func (p *ebnfParser) flush() {
-	p.out.Write(p.src[p.prev:p.pos])
-	p.prev = p.pos
-}
-
-func (p *ebnfParser) next() {
-	p.tok = p.scanner.Scan()
-	p.pos = p.scanner.Position.Offset
-	p.lit = p.scanner.TokenText()
-}
-
-func (p *ebnfParser) printf(format string, args ...interface{}) {
-	p.flush()
-	fmt.Fprintf(p.out, format, args...)
-}
-
-func (p *ebnfParser) errorExpected(msg string) {
-	p.printf(`<span class="highlight">error: expected %s, found %s</span>`, msg, scanner.TokenString(p.tok))
-}
-
-func (p *ebnfParser) expect(tok rune) {
-	if p.tok != tok {
-		p.errorExpected(scanner.TokenString(tok))
-	}
-	p.next() // make progress in any case
-}
-
-func (p *ebnfParser) parseIdentifier(def bool) {
-	if p.tok == scanner.Ident {
-		name := p.lit
-		if def {
-			p.printf(`<a id="%s">%s</a>`, name, name)
-		} else {
-			p.printf(`<a href="#%s" class="noline">%s</a>`, name, name)
-		}
-		p.prev += len(name) // skip identifier when printing next time
-		p.next()
-	} else {
-		p.expect(scanner.Ident)
-	}
-}
-
-func (p *ebnfParser) parseTerm() bool {
-	switch p.tok {
-	case scanner.Ident:
-		p.parseIdentifier(false)
-
-	case scanner.String:
-		p.next()
-		const ellipsis = '…' // U+2026, the horizontal ellipsis character
-		if p.tok == ellipsis {
-			p.next()
-			p.expect(scanner.String)
-		}
-
-	case '(':
-		p.next()
-		p.parseExpression()
-		p.expect(')')
-
-	case '[':
-		p.next()
-		p.parseExpression()
-		p.expect(']')
-
-	case '{':
-		p.next()
-		p.parseExpression()
-		p.expect('}')
-
-	default:
-		return false // no term found
-	}
-
-	return true
-}
-
-func (p *ebnfParser) parseSequence() {
-	if !p.parseTerm() {
-		p.errorExpected("term")
-	}
-	for p.parseTerm() {
-	}
-}
-
-func (p *ebnfParser) parseExpression() {
-	for {
-		p.parseSequence()
-		if p.tok != '|' {
-			break
-		}
-		p.next()
-	}
-}
-
-func (p *ebnfParser) parseProduction() {
-	p.parseIdentifier(true)
-	p.expect('=')
-	if p.tok != '.' {
-		p.parseExpression()
-	}
-	p.expect('.')
-}
-
-func (p *ebnfParser) parse(out io.Writer, src []byte) {
-	// initialize ebnfParser
-	p.out = out
-	p.src = src
-	p.scanner.Init(bytes.NewBuffer(src))
-	p.next() // initializes pos, tok, lit
-
-	// process source
-	for p.tok != scanner.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) {
-	for len(src) > 0 {
-		// i: beginning of EBNF text (or end of source)
-		i := bytes.Index(src, openTag)
-		if i < 0 {
-			i = len(src) - len(openTag)
-		}
-		i += len(openTag)
-
-		// j: end of EBNF text (or end of source)
-		j := bytes.Index(src[i:], closeTag) // close marker
-		if j < 0 {
-			j = len(src) - i
-		}
-		j += i
-
-		// write text before EBNF
-		out.Write(src[0:i])
-		// process EBNF
-		var p ebnfParser
-		p.parse(out, src[i:j])
-
-		// advance
-		src = src[j:]
-	}
-}