let indtyuri_of_uri uri =
let index_sharp = String.index uri '#' in
let index_num = index_sharp + 3 in
- (UriManager.uri_of_string (String.sub uri 0 index_sharp),
- int_of_string (String.sub uri index_num (String.length uri - index_num)) - 1
- )
+ try
+ (UriManager.uri_of_string (String.sub uri 0 index_sharp),
+ int_of_string(String.sub uri index_num (String.length uri - index_num)) - 1
+ )
+ with
+ Failure msg ->
+ raise (CicTextualParser0.LexerFailure "Not an inductive URI")
;;
let indconuri_of_uri uri =
let index_sharp = String.index uri '#' in
let index_div = String.rindex uri '/' in
let index_con = index_div + 1 in
- (UriManager.uri_of_string (String.sub uri 0 index_sharp),
- int_of_string
- (String.sub uri (index_sharp + 3) (index_div - index_sharp - 3)) - 1,
- int_of_string
- (String.sub uri index_con (String.length uri - index_con))
- )
+ try
+ (UriManager.uri_of_string (String.sub uri 0 index_sharp),
+ int_of_string
+ (String.sub uri (index_sharp + 3) (index_div - index_sharp - 3)) - 1,
+ int_of_string
+ (String.sub uri index_con (String.length uri - index_con))
+ )
+ with
+ Failure msg ->
+ raise (CicTextualParser0.LexerFailure "Not a constructor URI")
;;
(* TeX unquoting for "_" *)
}
let dollar = '$'
let num = ['1'-'9']['0'-'9']* | '0'
-let alfa = ['A'-'Z' 'a'-'z' '_' ''' '-'] | "\\_"
-let ident = alfa (alfa | num)*
+let letter = ['A'-'Z' 'a'-'z']
+let alfa = letter | ['_' ''' '-'] | "\\_"
+let ident = letter (alfa | num)*
let baseuri = '/'(ident '/')* ident '.'
let conuri = baseuri "con"
let varuri = baseuri "var"
let indtyuri = baseuri "ind#1/" num
let indconuri = baseuri "ind#1/" num "/" num
-let blanks = [' ' '\t' '\n' '~' '{' '}'] | "\\;"
+let blanks = [' ' '\t' '\n' '~' '{' '}'] | "\\;" | "\\rm"
rule token =
parse
blanks { token lexbuf } (* skip blanks *)
| eof { EOF }
(* Arithmetical operators *)
| '+' { PLUS }
+ | '-' { MINUS }
| '*' { TIMES }
| '=' { EQ }
{}