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This library contains many miscellanous functions that are used by the
other programs we have written.
The declarations for the functions are in ../include. config.h must be
included first in a .c file; that includes global.h, which declares a
few of the most commonly used functions here. The rest have their own
include files, e.g., line.h.
Some functions merely call a C library routine or make a system call,
check the return status, and abort if the function failed. (In the
programs this has been used for, that was all that we ever wanted.)
Here is a brief description of what's here (aside from the files which
have just one function in them and other ``obvious'' ones):
bb-outline find the outlines in a bitmap character.
bitmap operations on bitmaps, with each pixel represented by a
byte in memory.
bounding-box conversions to and from bounding boxes, both integer
and real.
cmdline standard things for reading option lists.
dirio directory operations.
encoding read a font encoding specification in a .enc file.
file-input read BigEndian values.
file-open wrappers for fopen and fclose.
file-output write BigEndian values.
filename operations on filenames.
fix-num conversions for the `fix_word' fixed-point fraction
type, used in TFM files et al.
font read a bitmap font, or a bitmap font and its metrics.
hexify convert a sequence of binary data to its hex representation.
libfile read a `library', i.e., an auxiliary data, file.
line read an arbitrarily long line from a file, returning a string.
list generic list operations. It is a tossup as to whether
it is easier to repeat this code for the particular
lists you desire, or to use these, often with an extra
level of pointers. Unfortunately, C does not support
generic types.
math distance, slope, etc., between two points; operations on
arrays as a collection of numeric data.
now the current time as in date(1).
pathsearch look up a filename along a path in an environment variable.
report online progress reporting.
scaled-num routines for the `scaled' fixed-point fraction
type, used in GF files et al.
spline operations on Bezier splines.
statistics find the mean/standard deviation of an array of numbers.
varstring variable-length strings.
vector operations on vectors and point/vector combinations.
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