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Release calc version 2.12.1.6

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Landon Curt Noll
2007-01-03 13:33:37 -08:00
parent 4e92927183
commit ee30d787ea
32 changed files with 862 additions and 269 deletions
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77
help/statement
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@@ -3,22 +3,76 @@ Statements
Statements are very much like C statements. Most statements act
identically to those in C, but there are minor differences and
some additions. The following is a list of the statement types,
with explanation of the non-C statements. In this list, upper
case words identify the keywords which are actually in lower case.
Statements are generally terminated with semicolons, except if the
statement is the compound one formed by matching braces. Various
expressions are optional and may be omitted (as in RETURN).
with explanation of the non-C statements.
Statements are generally terminated with semicolons or { ... }.
C-like statements
-----------------
{ statement }
{ statement; ... statement }
C-like flow control
-------------------
if (expr) statement
if (expr) statement ELSE statement
if (expr) statement else statement
for (optionalexpr ; optionalexpr ; optionalexpr) statement
while (expr) statement
do statement while (expr)
These all work like in normal C.
IMPORTANT NOTE: When statement is of the form { ... },
the leading { must be on the same line as the if, for,
while or do keyword.
This works as expected:
if (expr) {
...
}
However this WILL NOT WORK AS EXPECTED:
if (expr)
{
...
}
because calc will parse the if being terminated by
an empty statement followed by a
if (expr) ;
{
...
}
In the same way, use these forms:
for (optionalexpr ; optionalexpr ; optionalexpr) {
...
}
while (expr) {
...
}
do {
...
while (expr);
where the initial { is on the SAME LINE as the if, while,
for or do.
See 'help expression' for details on expressions.
See 'help builtin' for details on calc builtin functions.
See 'help unexpanded' for things C programmers do not expect.
See also 'help todo' and 'help bugs'.
C-like flow breaks
------------------
continue
break
goto label
@@ -30,8 +84,9 @@ Statements
return
------
return optionalexpr
return ( optionalexpr )
return
return expr
return ( expr )
This returns a value from a function. Functions always
have a return value, even if this statement is not used.
If no return statement is executed, or if no expression
@@ -241,7 +296,7 @@ Statements
builtin calc builtin functions
usage how to invoke the calc command and calc -options
## Copyright (C) 1999 Landon Curt Noll
## Copyright (C) 1999-2006 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
@@ -257,8 +312,8 @@ Statements
## received a copy with calc; if not, write to Free Software Foundation, Inc.
## 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
##
## @(#) $Revision: 29.2 $
## @(#) $Id: statement,v 29.2 2000/06/07 14:02:33 chongo Exp $
## @(#) $Revision: 29.3 $
## @(#) $Id: statement,v 29.3 2007/01/03 21:26:22 chongo Exp $
## @(#) $Source: /usr/local/src/cmd/calc/help/RCS/statement,v $
##
## Under source code control: 1991/07/21 04:37:23