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mtext_character

NAME

mtext_character − Search a character in an M−text.

SYNOPSIS

int mtext_character (MText * mt, int from, int to, int c)

DESCRIPTION

Search a character in an M−text. The mtext_character() function searches M−text mt for character c. If from is less than to, the search begins at position from and goes forward but does not exceed (to − 1). Otherwise, the search begins at position (from − 1) and goes backward but does not exceed to. An invalid position specification is regarded as both from and to being 0.

RETURN VALUE

If c is found, mtext_character() returns the position of its first occurrence. Otherwise it returns −1 without changing the external variable merror_code. If an error is detected, it returns −1 and assigns an error code to the external variable merror_code.

SEE ALSO

mtext_chr(), mtext_rchr()

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>.

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