let regexp blank = [ ' ' '\t' '\n' ]
let regexp paren = [ '(' '[' '{' ')' ']' '}' ]
let regexp implicit = '?'
+let regexp placeholder = '%'
let regexp symbol_char =
[^ 'a' - 'z' 'A' - 'Z' '0' - '9'
' ' '\t' '\n'
'\\' '(' '[' '{' ')' ']' '}' '?'
]
let regexp dust = "%%" [^ '\n']* '\n'
-let regexp comment_char = [^ "*)" ]
+
+let regexp comment_char = [^ ")" ]
let regexp note = "(*" comment_char* "*)"
+
let regexp commentbegin = "(**"
let regexp commentend = "**)"
+
let regexp blanks = blank+
let regexp num = digit+
let regexp tex_token = '\\' alpha+
-let regexp symbol = symbol_char+
+let regexp symbol = symbol_char
let regexp ident_cont = alpha | num | '_' | '\''
let regexp ident_cont' = ident_cont | tex_token
let regexp ident = (alpha ident_cont*) | ('_' ident_cont+)
| paren -> return lexbuf ("PAREN", Ulexing.utf8_lexeme lexbuf)
| meta -> return lexbuf ("META", Ulexing.utf8_lexeme lexbuf)
| implicit -> return lexbuf ("IMPLICIT", Ulexing.utf8_lexeme lexbuf)
+ | placeholder -> return lexbuf ("PLACEHOLDER", Ulexing.utf8_lexeme lexbuf)
| qstring ->
return lexbuf ("QSTRING", remove_quotes (Ulexing.utf8_lexeme lexbuf))
| symbol -> return lexbuf ("SYMBOL", Ulexing.utf8_lexeme lexbuf)