Detailed Description

Support for m17n library users to debug their programs.

The m17n library provides the following facilities to support the library users to debug their programs.

  • Environment variables to control printing of various information to stderr.

MDEBUG_INIT -- If set to 1, print information about the library initialization on the call of M17N_INIT().

MDEBUG_FINI -- If set to 1, print counts of objects that are not yet freed on the call of M17N_FINI().

MDEBUG_CHARSET -- If set to 1, print information about charsets being loaded from the m17n database.

MDEBUG_CODING -- If set to 1, print information about coding systems being loaded from the m17n database.

MDEBUG_DATABASE -- If set to 1, print information about data being loaded from the m17n database.

MDEBUG_FONT -- If set to 1, print information about fonts being selected and opened.

MDEBUG_FLT -- If set to 1, 2, or 3, print information about which command of Font Layout Table are being executed. The bigger number prints the more detailed information.

MDEBUG_INPUT -- If set to 1, print information about how an input method is running.

MDEBUG_ALL -- Setting this variable to 1 is equivalent to setting all the above variables to 1.

MDEBUG_OUTPUT_FILE -- If set to a file name, the above debugging information is appended to the file. If set to 'stdout', the information is printed to stdout.

  • Functions to print various objects in a human readable way. See the documentation of mdebug_dump_XXXX() functions.

  • The hook function called on an error. See the documentation of mdebug_hook().

Author

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COPYRIGHT

Copyright (C) 2001 Information-technology Promotion Agency (IPA)

Copyright (C) 2001-2011 National Institute of Advanced Industrial Science and Technology (AIST)

Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License <http://www.gnu.org/licenses/fdl.html>.