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Diffstat (limited to 'libgo/go/net/dict/dict.go')
-rw-r--r-- | libgo/go/net/dict/dict.go | 210 |
1 files changed, 0 insertions, 210 deletions
diff --git a/libgo/go/net/dict/dict.go b/libgo/go/net/dict/dict.go deleted file mode 100644 index e7f5290..0000000 --- a/libgo/go/net/dict/dict.go +++ /dev/null @@ -1,210 +0,0 @@ -// Copyright 2010 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 dict implements the Dictionary Server Protocol -// as defined in RFC 2229. -package dict - -import ( - "net/textproto" - "strconv" - "strings" -) - -// A Client represents a client connection to a dictionary server. -type Client struct { - text *textproto.Conn -} - -// Dial returns a new client connected to a dictionary server at -// addr on the given network. -func Dial(network, addr string) (*Client, error) { - text, err := textproto.Dial(network, addr) - if err != nil { - return nil, err - } - _, _, err = text.ReadCodeLine(220) - if err != nil { - text.Close() - return nil, err - } - return &Client{text: text}, nil -} - -// Close closes the connection to the dictionary server. -func (c *Client) Close() error { - return c.text.Close() -} - -// A Dict represents a dictionary available on the server. -type Dict struct { - Name string // short name of dictionary - Desc string // long description -} - -// Dicts returns a list of the dictionaries available on the server. -func (c *Client) Dicts() ([]Dict, error) { - id, err := c.text.Cmd("SHOW DB") - if err != nil { - return nil, err - } - - c.text.StartResponse(id) - defer c.text.EndResponse(id) - - _, _, err = c.text.ReadCodeLine(110) - if err != nil { - return nil, err - } - lines, err := c.text.ReadDotLines() - if err != nil { - return nil, err - } - _, _, err = c.text.ReadCodeLine(250) - - dicts := make([]Dict, len(lines)) - for i := range dicts { - d := &dicts[i] - a, _ := fields(lines[i]) - if len(a) < 2 { - return nil, textproto.ProtocolError("invalid dictionary: " + lines[i]) - } - d.Name = a[0] - d.Desc = a[1] - } - return dicts, err -} - -// A Defn represents a definition. -type Defn struct { - Dict Dict // Dict where definition was found - Word string // Word being defined - Text []byte // Definition text, typically multiple lines -} - -// Define requests the definition of the given word. -// The argument dict names the dictionary to use, -// the Name field of a Dict returned by Dicts. -// -// The special dictionary name "*" means to look in all the -// server's dictionaries. -// The special dictionary name "!" means to look in all the -// server's dictionaries in turn, stopping after finding the word -// in one of them. -func (c *Client) Define(dict, word string) ([]*Defn, error) { - id, err := c.text.Cmd("DEFINE %s %q", dict, word) - if err != nil { - return nil, err - } - - c.text.StartResponse(id) - defer c.text.EndResponse(id) - - _, line, err := c.text.ReadCodeLine(150) - if err != nil { - return nil, err - } - a, _ := fields(line) - if len(a) < 1 { - return nil, textproto.ProtocolError("malformed response: " + line) - } - n, err := strconv.Atoi(a[0]) - if err != nil { - return nil, textproto.ProtocolError("invalid definition count: " + a[0]) - } - def := make([]*Defn, n) - for i := 0; i < n; i++ { - _, line, err = c.text.ReadCodeLine(151) - if err != nil { - return nil, err - } - a, _ := fields(line) - if len(a) < 3 { - // skip it, to keep protocol in sync - i-- - n-- - def = def[0:n] - continue - } - d := &Defn{Word: a[0], Dict: Dict{a[1], a[2]}} - d.Text, err = c.text.ReadDotBytes() - if err != nil { - return nil, err - } - def[i] = d - } - _, _, err = c.text.ReadCodeLine(250) - return def, err -} - -// Fields returns the fields in s. -// Fields are space separated unquoted words -// or quoted with single or double quote. -func fields(s string) ([]string, error) { - var v []string - i := 0 - for { - for i < len(s) && (s[i] == ' ' || s[i] == '\t') { - i++ - } - if i >= len(s) { - break - } - if s[i] == '"' || s[i] == '\'' { - q := s[i] - // quoted string - var j int - for j = i + 1; ; j++ { - if j >= len(s) { - return nil, textproto.ProtocolError("malformed quoted string") - } - if s[j] == '\\' { - j++ - continue - } - if s[j] == q { - j++ - break - } - } - v = append(v, unquote(s[i+1:j-1])) - i = j - } else { - // atom - var j int - for j = i; j < len(s); j++ { - if s[j] == ' ' || s[j] == '\t' || s[j] == '\\' || s[j] == '"' || s[j] == '\'' { - break - } - } - v = append(v, s[i:j]) - i = j - } - if i < len(s) { - c := s[i] - if c != ' ' && c != '\t' { - return nil, textproto.ProtocolError("quotes not on word boundaries") - } - } - } - return v, nil -} - -func unquote(s string) string { - if strings.Index(s, "\\") < 0 { - return s - } - b := []byte(s) - w := 0 - for r := 0; r < len(b); r++ { - c := b[r] - if c == '\\' { - r++ - c = b[r] - } - b[w] = c - w++ - } - return string(b[0:w]) -} |