For the sake of simplicity only the positive options are mentioned. For each (or most) of the options below, there exists a sibling with a _DISABLED suffix. The option without the suffix enables something, the option with the suffix disables the ‘something’.
Explicitly enables asserts which are enabled by default anyway. More of use is the sibling QUEX_OPTION_ASSERTS_DISABLED. Disabling asserts is key for getting reasonable performance.
If defined (as by default) mode changes may happen without a token being returned. Then, the analysis process continues until the first valid token is returned. However, if:
is defined, then the .receive() function returns always without checking that a token has actually been sent. This option is only effective for the token policy ‘single’. With the ‘queue’ token policy, the analyzer never returns with an empty token queue.
Turn on buffer based analyzis. In particular automatic buffer reload is disabled. Also some consistency checks are disabled if asserts were enabled.
Enables column number counting. Respectively, QUEX_OPTION_COLUMN_NUMBER_COUNTING_DISABLED disables it.
Enables/disables the usage of computed gotos. Use this option only if your compiler supports it. For example, GNU’s gcc does support it from version 2.3.
Enables/disables the use of the GNU IConv library for conversion. This can also be set with the command line option --iconv.
Enables/disables the use of the IBM’s ICU library for conversion. This can also be set with the command line option --icu. Note, that IConv and ICU are best used mutually exclusive.
Enables/disables the output of details about the lexical analyzis process.
Enables/disables the output of details about reloads of the buffer.
Enables/disables Francois Pinards Recode library. At the time of this writing the converter is not yet implemented.
Enables/disables error messages on disallows mode transitions.
Enables/disables the feature of an intelligent include stack.
Enables/disables informative buffer overflow messages. If set it prints the lexeme on which the buffer overflow happend.
Enables/disables line number counting. Line and column number counting are implemented very efficiently. Most probably no performance decrease will be measurable by deactivating this feature.
Enables/disables an optional post categorizer that maps from a lexeme to a token-id.
Enables/disables mode transition checks during run-time.
Some input streams behave rather strange. When receiving N characters from a stream, their stream position might increase by a number M which is different from N. To handle those streams, set this option.
Alternatively, one might consider opening the stream in binary mode.
If this macro is defined, the setting of the terminating zero at the end of a lexeme is disabled. This may cause some speed-up, but it is necessary in order to run the lexical analyzer on read-only memory.
Enables/disables an optional accumulator which can collect some longer string.
Enables/disables the token sending via a token queue. With the current version of quex (0.36.4) some performance increase can be achieved if the token queue is disabled.
Enables/disables the token sending via a token object owned by the user.
Enables/disables the stamping of tokens with the line and column number. The stamping happens by default. If it is desired to disable this stamping the ..._DISABLED version of this macro must be defined. If column or line counting is disabled the corresponding stamping is also disabled, anyway.
Disable the warning message that is printed if a analyzer is used without a character encoding while it was created for a converter interface such as IConv or ICU.
If asserts are enabled, then quex triggers an error message whenever a token is sent after the ‘TERMINATION’ token. In some cases, this might just be convenient, so that one might want to allow it by defining this macro.