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Diffstat (limited to 'lib/xml_lexer.mll')
| -rw-r--r-- | lib/xml_lexer.mll | 317 |
1 files changed, 0 insertions, 317 deletions
diff --git a/lib/xml_lexer.mll b/lib/xml_lexer.mll deleted file mode 100644 index 290f2c89..00000000 --- a/lib/xml_lexer.mll +++ /dev/null @@ -1,317 +0,0 @@ -{(* - * Xml Light, an small Xml parser/printer with DTD support. - * Copyright (C) 2003 Nicolas Cannasse (ncannasse@motion-twin.com) - * - * This library is free software; you can redistribute it and/or - * modify it under the terms of the GNU Lesser General Public - * License as published by the Free Software Foundation; either - * version 2.1 of the License, or (at your option) any later version. - * - * This library is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Lesser General Public License for more details. - * - * You should have received a copy of the GNU Lesser General Public - * License along with this library; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - *) - -open Lexing - -type error = - | EUnterminatedComment - | EUnterminatedString - | EIdentExpected - | ECloseExpected - | ENodeExpected - | EAttributeNameExpected - | EAttributeValueExpected - | EUnterminatedEntity - -exception Error of error - -type pos = int * int * int * int - -type token = - | Tag of string * (string * string) list * bool - | PCData of string - | Endtag of string - | Eof - -let last_pos = ref 0 -and current_line = ref 0 -and current_line_start = ref 0 - -let tmp = Buffer.create 200 - -let idents = Hashtbl.create 0 - -let _ = begin - Hashtbl.add idents "nbsp;" " "; - Hashtbl.add idents "gt;" ">"; - Hashtbl.add idents "lt;" "<"; - Hashtbl.add idents "amp;" "&"; - Hashtbl.add idents "apos;" "'"; - Hashtbl.add idents "quot;" "\""; -end - -let init lexbuf = - current_line := 1; - current_line_start := lexeme_start lexbuf; - last_pos := !current_line_start - -let close lexbuf = - Buffer.reset tmp - -let pos lexbuf = - !current_line , !current_line_start , - !last_pos , - lexeme_start lexbuf - -let restore (cl,cls,lp,_) = - current_line := cl; - current_line_start := cls; - last_pos := lp - -let newline lexbuf = - incr current_line; - last_pos := lexeme_end lexbuf; - current_line_start := !last_pos - -let error lexbuf e = - last_pos := lexeme_start lexbuf; - raise (Error e) - -} - -let newline = ['\n'] -let break = ['\r'] -let space = [' ' '\t'] -let identchar = ['A'-'Z' 'a'-'z' '_' '0'-'9' ':' '-' '.'] -let ident = ['A'-'Z' 'a'-'z' '_' ':'] identchar* -let entitychar = ['A'-'Z' 'a'-'z'] -let pcchar = [^ '\r' '\n' '<' '>' '&'] - -rule token = parse - | newline | (newline break) | break - { - newline lexbuf; - PCData "\n" - } - | "<!--" - { - last_pos := lexeme_start lexbuf; - comment lexbuf; - token lexbuf - } - | "<?" - { - last_pos := lexeme_start lexbuf; - header lexbuf; - token lexbuf; - } - | '<' space* '/' space* - { - last_pos := lexeme_start lexbuf; - let tag = ident_name lexbuf in - ignore_spaces lexbuf; - close_tag lexbuf; - Endtag tag - } - | '<' space* - { - last_pos := lexeme_start lexbuf; - let tag = ident_name lexbuf in - ignore_spaces lexbuf; - let attribs, closed = attributes lexbuf in - Tag(tag, attribs, closed) - } - | "&#" - { - last_pos := lexeme_start lexbuf; - Buffer.reset tmp; - Buffer.add_string tmp (lexeme lexbuf); - PCData (pcdata lexbuf) - } - | '&' - { - last_pos := lexeme_start lexbuf; - Buffer.reset tmp; - Buffer.add_string tmp (entity lexbuf); - PCData (pcdata lexbuf) - } - | pcchar+ - { - last_pos := lexeme_start lexbuf; - Buffer.reset tmp; - Buffer.add_string tmp (lexeme lexbuf); - PCData (pcdata lexbuf) - } - | eof { Eof } - | _ - { error lexbuf ENodeExpected } - -and ignore_spaces = parse - | newline | (newline break) | break - { - newline lexbuf; - ignore_spaces lexbuf - } - | space + - { ignore_spaces lexbuf } - | "" - { () } - -and comment = parse - | newline | (newline break) | break - { - newline lexbuf; - comment lexbuf - } - | "-->" - { () } - | eof - { raise (Error EUnterminatedComment) } - | _ - { comment lexbuf } - -and header = parse - | newline | (newline break) | break - { - newline lexbuf; - header lexbuf - } - | "?>" - { () } - | eof - { error lexbuf ECloseExpected } - | _ - { header lexbuf } - -and pcdata = parse - | newline | (newline break) | break - { - Buffer.add_char tmp '\n'; - newline lexbuf; - pcdata lexbuf - } - | pcchar+ - { - Buffer.add_string tmp (lexeme lexbuf); - pcdata lexbuf - } - | "&#" - { - Buffer.add_string tmp (lexeme lexbuf); - pcdata lexbuf; - } - | '&' - { - Buffer.add_string tmp (entity lexbuf); - pcdata lexbuf - } - | "" - { Buffer.contents tmp } - -and entity = parse - | entitychar+ ';' - { - let ident = lexeme lexbuf in - try - Hashtbl.find idents (String.lowercase ident) - with - Not_found -> "&" ^ ident - } - | _ | eof - { raise (Error EUnterminatedEntity) } - -and ident_name = parse - | ident - { lexeme lexbuf } - | _ | eof - { error lexbuf EIdentExpected } - -and close_tag = parse - | '>' - { () } - | _ | eof - { error lexbuf ECloseExpected } - -and attributes = parse - | '>' - { [], false } - | "/>" - { [], true } - | "" (* do not read a char ! *) - { - let key = attribute lexbuf in - let data = attribute_data lexbuf in - ignore_spaces lexbuf; - let others, closed = attributes lexbuf in - (key, data) :: others, closed - } - -and attribute = parse - | ident - { lexeme lexbuf } - | _ | eof - { error lexbuf EAttributeNameExpected } - -and attribute_data = parse - | space* '=' space* '"' - { - Buffer.reset tmp; - last_pos := lexeme_end lexbuf; - dq_string lexbuf - } - | space* '=' space* '\'' - { - Buffer.reset tmp; - last_pos := lexeme_end lexbuf; - q_string lexbuf - } - | _ | eof - { error lexbuf EAttributeValueExpected } - -and dq_string = parse - | '"' - { Buffer.contents tmp } - | '\\' [ '"' '\\' ] - { - Buffer.add_char tmp (lexeme_char lexbuf 1); - dq_string lexbuf - } - | '&' - { - Buffer.add_string tmp (entity lexbuf); - dq_string lexbuf - } - | eof - { raise (Error EUnterminatedString) } - | _ - { - Buffer.add_char tmp (lexeme_char lexbuf 0); - dq_string lexbuf - } - -and q_string = parse - | '\'' - { Buffer.contents tmp } - | '\\' [ '\'' '\\' ] - { - Buffer.add_char tmp (lexeme_char lexbuf 1); - q_string lexbuf - } - | '&' - { - Buffer.add_string tmp (entity lexbuf); - q_string lexbuf - } - | eof - { raise (Error EUnterminatedString) } - | _ - { - Buffer.add_char tmp (lexeme_char lexbuf 0); - q_string lexbuf - } |