Parse Exception

Thread: Parse Exception

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Parse Exception
	2007-07-16 10:02:41
Hi, The ParseException can result in the infuriating message Encountered "V" at line 1, column 29. Was expecting one of: <NUMBER> ... "V" ... "C" ... "X" ... "D" ... "N" ... "S" ... "T" ... "M" ... This can be easily modified to produce the less infuriating message: ParseException: Encountered <IDENTIFIER> "V" at line 1, column 29. Was expecting one of: <NUMBER> ... "V" ... "C" ... "X" ... "D" ... "N" ... "S" ... "T" ... "M" ... by the addition of the following to the generated ParseException: retval += " " + tokenImage[tok.kind]; retval += " ""; retval += add_escapes(tok.image); retval += "" "; Would others see this as an improvement? TimP ------------------------------------------------------------ --------- To unsubscribe, e-mail: users-unsubscribejavacc.dev.java.net For additional commands, e-mail: users-helpjavacc.dev.java.net

Re: Parse Exception
	2007-07-16 10:10:45
I would see that as an improvement, particularly since I have encountered similar error messages. However, keep in mind that not all tokens need be named, which may complicate things a bit. Nathan On Jul 16, 2007, at 9.02, TimP wrote: > Hi, > > The ParseException can result in the infuriating message > > Encountered "V" at line 1, column 29. > Was expecting one of: > <NUMBER> ... > "V" ... > "C" ... > "X" ... > "D" ... > "N" ... > "S" ... > "T" ... > "M" ... > > > This can be easily modified to produce the less infuriating message: > > ParseException: Encountered <IDENTIFIER> "V" at line 1, column 29. > Was expecting one of: > <NUMBER> ... > "V" ... > "C" ... > "X" ... > "D" ... > "N" ... > "S" ... > "T" ... > "M" ... > > by the addition of the following to the generated ParseException: > > retval += " " + tokenImage[tok.kind]; > retval += " ""; > retval += add_escapes(tok.image); > retval += "" "; > > Would others see this as an improvement? > > TimP > > > ------------------------------------------------------------ --------- > To unsubscribe, e-mail: users-unsubscribejavacc.dev.java.net > For additional commands, e-mail: users-helpjavacc.dev.java.net > ------------------------------------------------------------ --------- To unsubscribe, e-mail: users-unsubscribejavacc.dev.java.net For additional commands, e-mail: users-helpjavacc.dev.java.net

Re: Parse Exception
	2007-07-16 10:32:04
May be improve the code generation to pass in the line/col where the token definition of the matched token occurs (in addition to the kind). Sreeni. > I would see that as an improvement, particularly since I have > encountered similar error messages. However, keep in mind that not > all tokens need be named, which may complicate things a bit. > > Nathan > > > On Jul 16, 2007, at 9.02, TimP wrote: > >> Hi, >> >> The ParseException can result in the infuriating message >> >> Encountered "V" at line 1, column 29. >> Was expecting one of: >> <NUMBER> ... >> "V" ... >> "C" ... >> "X" ... >> "D" ... >> "N" ... >> "S" ... >> "T" ... >> "M" ... >> >> >> This can be easily modified to produce the less infuriating message: >> >> ParseException: Encountered <IDENTIFIER> "V" at line 1, column 29. >> Was expecting one of: >> <NUMBER> ... >> "V" ... >> "C" ... >> "X" ... >> "D" ... >> "N" ... >> "S" ... >> "T" ... >> "M" ... >> >> by the addition of the following to the generated ParseException: >> >> retval += " " + tokenImage[tok.kind]; >> retval += " ""; >> retval += add_escapes(tok.image); >> retval += "" "; >> >> Would others see this as an improvement? >> >> TimP >> >> >> ------------------------------------------------------------ --------- >> To unsubscribe, e-mail: users-unsubscribejavacc.dev.java.net >> For additional commands, e-mail: users-helpjavacc.dev.java.net >> > > ------------------------------------------------------------ --------- > To unsubscribe, e-mail: users-unsubscribejavacc.dev.java.net > For additional commands, e-mail: users-helpjavacc.dev.java.net > > ------------------------------------------------------------ --------- To unsubscribe, e-mail: users-unsubscribejavacc.dev.java.net For additional commands, e-mail: users-helpjavacc.dev.java.net

Re: Parse Exception
	2007-07-16 10:32:04
May be improve the code generation to pass in the line/col where the token definition of the matched token occurs (in addition to the kind). Sreeni. > I would see that as an improvement, particularly since I have > encountered similar error messages. However, keep in mind that not > all tokens need be named, which may complicate things a bit. > > Nathan > > > On Jul 16, 2007, at 9.02, TimP wrote: > >> Hi, >> >> The ParseException can result in the infuriating message >> >> Encountered "V" at line 1, column 29. >> Was expecting one of: >> <NUMBER> ... >> "V" ... >> "C" ... >> "X" ... >> "D" ... >> "N" ... >> "S" ... >> "T" ... >> "M" ... >> >> >> This can be easily modified to produce the less infuriating message: >> >> ParseException: Encountered <IDENTIFIER> "V" at line 1, column 29. >> Was expecting one of: >> <NUMBER> ... >> "V" ... >> "C" ... >> "X" ... >> "D" ... >> "N" ... >> "S" ... >> "T" ... >> "M" ... >> >> by the addition of the following to the generated ParseException: >> >> retval += " " + tokenImage[tok.kind]; >> retval += " ""; >> retval += add_escapes(tok.image); >> retval += "" "; >> >> Would others see this as an improvement? >> >> TimP >> >> >> ------------------------------------------------------------ --------- >> To unsubscribe, e-mail: users-unsubscribejavacc.dev.java.net >> For additional commands, e-mail: users-helpjavacc.dev.java.net >> > > ------------------------------------------------------------ --------- > To unsubscribe, e-mail: users-unsubscribejavacc.dev.java.net > For additional commands, e-mail: users-helpjavacc.dev.java.net > > ------------------------------------------------------------ --------- To unsubscribe, e-mail: users-unsubscribejavacc.dev.java.net For additional commands, e-mail: users-helpjavacc.dev.java.net

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