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Add support for ${var} substitutions in the command file. 

We still support $(var).
This commit is contained in:
Cary R 2009-10-28 18:06:36 -07:00 committed by Stephen Williams
parent 9dc4c8cbe1
commit 4cb39f584d
2 changed files with 7 additions and 30 deletions
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5
driver/iverilog.man
View File

@ -1,4 +1,4 @@
.TH iverilog 1 "May 28th, 2009" "" "Version 0.10.devel"
.TH iverilog 1 "October 28th, 2009" "" "Version 0.10.devel"
.SH NAME
iverilog - Icarus Verilog compiler
@ -436,7 +436,8 @@ integer value.
.SH "VARIABLES IN COMMAND FILES"
In certain cases, iverilog supports variables in command files. These
are strings of the form "$(\fIvarname\fP)", where \fIvarname\fP is the
are strings of the form "$(\fIvarname\fP)" or "${\fIvarname\fP}", where
\fIvarname\fP is the
name of the environment variable to read. The entire string is
replaced with the contents of that variable. Variables are only
substituted in contexts that explicitly support them, including file

32
driver/substit.c
View File

@ -1,5 +1,5 @@
/*
* Copyright (c) 2002 Stephen Williams (steve@icarus.com)
* Copyright (c) 2002-2009 Stephen Williams (steve@icarus.com)
*
* This source code is free software; you can redistribute it
* and/or modify it in source code form under the terms of the GNU
@ -16,9 +16,6 @@
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
*/
#ifdef HAVE_CVS_IDENT
#ident "$Id: substit.c,v 1.5 2003/12/19 01:27:10 steve Exp $"
#endif
# include <string.h>
# include <stdlib.h>
@ -35,13 +32,13 @@ char* substitutions(const char*str)
while (*str) {
if ((str[0] == '$') && (str[1] == '(')) {
/* If I find a $(x) string in the source, replace
if ((str[0] == '$') && ((str[1] == '(') || str[1] == '{')) {
/* If I find a $(x) or ${x} string in the source, replace
it in the destination with the contents of the
environment variable x. */
char*name;
char*value;
const char*ep = strchr(str, ')');
const char*ep = strchr(str, (str[1]=='(') ? ')' : '}');
str += 2;
name = malloc(ep-str+1);
@ -92,24 +89,3 @@ char* substitutions(const char*str)
return buf;
}
/*
* $Log: substit.c,v $
* Revision 1.5 2003/12/19 01:27:10 steve
* Fix various unsigned compare warnings.
*
* Revision 1.4 2002/08/12 01:35:01 steve
* conditional ident string using autoconfig.
*
* Revision 1.3 2002/08/11 23:47:04 steve
* Add missing Log and Ident strings.
*
* Revision 1.2 2002/06/25 01:33:01 steve
* include malloc.h only when available.
*
* Revision 1.1 2002/06/23 20:10:51 steve
* Variable substitution in command files.
*
*/