02-07-2010
Quote:
Originally Posted by
pritish.sas
could you Please tell how it's work. It's very complex but may be effective. Someone please help me to understand this code
See 'man perlrun', and check out the options -n -a -l -F and -e.
$" is also known by its long name $LIST_SEPARATOR (see 'man perlvar'), which explains a lot I guess ;-)
'[1..29]' is an array slice, and selects all specified elements. '1..29' is a range of all integers between and including 1 and 29.
Hope that helps...
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LEARN ABOUT DEBIAN
merge_fonts
merge_fonts(3alleg4) Allegro manual merge_fonts(3alleg4)
NAME
merge_fonts - Merges two fonts into one font. Allegro game programming library.
SYNOPSIS
#include <allegro.h>
FONT *merge_fonts(FONT *f1, FONT *f2)
DESCRIPTION
This function merges the character ranges from two fonts and returns a new font containing all characters in the old fonts. In general, you
cannot merge fonts of different types (eg, TrueType fonts and bitmapped fonts), but as a special case, this function can promote a mono-
chrome bitmapped font to a color font and merge those. Example:
FONT *myfont;
FONT *myfancy_font;
FONT *lower_range;
FONT *upper_range;
FONT *capitals;
FONT *combined_font;
FONT *tempfont;
...
/* Create a font that contains the capitals from */
/* the fancy font but other characters from myfont */
lower_range = extract_font_range(myfont, -1, 'A'-1);
upper_range = extract_font_range(myfont, 'Z'+1, -1);
capitals = extract_font_range(myfancy_font, 'A', 'Z');
tempfont = merge_fonts(lower_range, capitals);
combined_font = merge_fonts(tempfont, upper_range);
/* Clean up temporary fonts */
destroy_font(lower_range);
destroy_font(upper_range);
destroy_font(capitals);
destroy_font(tempfont);
RETURN VALUE
Returns a pointer to the new font or NULL on error. Remember that you are responsible for destroying the font when you are finished with it
to avoid memory leaks.
SEE ALSO
extract_font_range(3alleg4), is_trans_font(3alleg4), is_color_font(3alleg4), is_mono_font(3alleg4), exfont(3alleg4)
Allegro version 4.4.2 merge_fonts(3alleg4)