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Improve string and printing documentation

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Updated the help files help/config, help/display, help/epsilon,
help/fprint, help/printf, and help/strprintf to give more
examples of how display digits and epsilon precision interact
with displaying values.

Added more information about %g in the help file help/printf.

The '\a' is now recognized in a printf format string as the
single byte audible bell character (byte 0x07 in ASCII encoding).

The following is a partial list of escape sequences recognized
in strings and in printf formats:

    \a      audible bell    byte 0x07 in ASCII encoding
    \b      backspace       byte 0x08 in ASCII encoding
    \f      form feed       byte 0x0c in ASCII encoding
    \n      newline         byte 0x0b in ASCII encoding
    \r      return          byte 0x0a in ASCII encoding
    \t      tab             byte 0x0d in ASCII encoding
    \v      vertical tab    byte 0x09 in ASCII encoding
This commit is contained in:
Landon Curt Noll
2018-11-04 17:00:15 -08:00
parent 1cdb5172d8
commit 81a4a4f828
7 changed files with 348 additions and 34 deletions
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4
help/str
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@@ -37,7 +37,7 @@ LIMITS
LINK LIBRARY
void math_divertio();
qprintnum(NUMBER *x, int outmode);
qprintnum(NUMBER *x, int outmode, LEN outdigits);
char *math_getdivertedio();
math_divertio();
@@ -47,7 +47,7 @@ LINK LIBRARY
SEE ALSO
base, base2, config
## Copyright (C) 1999-2006 Landon Curt Noll
## Copyright (C) 1999-2006,2018 Landon Curt Noll
##
## Calc is open software; you can redistribute it and/or modify it under
## the terms of the version 2.1 of the GNU Lesser General Public License