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/*
* NAME
* yacc - how to use yacc
*
* DESCRIPTION
* This cookbook describes how to use yacc.
*
* You will have to add "-d" to the [yacc_flags] variable
* if you want %.h files generated.
*
* If a y.output file is constructed, it will be moved to %.list
*
* RECIPES
* %.c %.h: %.y applied if -d in [yacc_flags]
* %.c: %.y applied if -d not in [yacc_flags]
*
* VARIABLES
* yacc_src Yacc source files in the current directory.
* dot_src Source files constructable in the current directory
* (unioned with existing setting, if necessary).
* dot_obj Object files constructable in the current directory
* (unioned with existing setting, if necessary).
* dot_clean Files which may be removed from the current directory
* in a clean target.
* dot_lint_obj Lint object files constructable in the current directory
* (unioned with existing setting, if necessary).
*
* MANIFEST: cookbook for using yacc
*/
#pragma once
#include "c"
if [not [defined yacc]] then
yacc = yacc;
if [not [defined yacc_flags]] then
yacc_flags = ;
yacc_src = [glob *.y];
cc_src = [stringset [cc_src] - [fromto %.y %.c [yacc_src]]];
dot_src =
[stringset
[dot_src] [yacc_src]
-
[fromto %.y %.c [yacc_src]] [fromto %.y %.s [yacc_src]]
];
dot_obj = [stringset [dot_obj] [fromto %.y %.o [yacc_src]]];
dot_clean =
[stringset
[dot_clean]
[fromto %.y %.o [yacc_src]]
[fromto %.y %.c [yacc_src]]
[fromto %.y %.list [yacc_src]]
[fromto %.y %.ln [yacc_src]]
[fromto %.y %.s [yacc_src]]
y.tab.c y.tab.h y.output
];
dot_lint_obj = [stringset [dot_lint_obj] [fromto %.y %.ln [yacc_src]]];
%.c %.h: %.y
if [in -d [yacc_flags]]
single-thread y.tab.c y.tab.h y.output
{
if [exists %.list] then
rm -f %.list
set clearstat;
if [exists y.output] then
rm -f y.output
set clearstat;
[yacc] [yacc_flags] %.y;
mv y.tab.c %.c;
mv y.tab.h %.h;
if [exists y.output] then
mv y.output %.list
set clearstat;
}
%.c: %.y
if [not [in -d [yacc_flags]]]
single-thread y.tab.c y.output
{
if [exists %.list] then
rm -f %.list
set clearstat;
if [exists y.output] then
rm -f y.output
set clearstat;
[yacc] [yacc_flags] %.y;
mv y.tab.c %.c;
if [exists y.output] then
mv y.output %.list
set clearstat;
}
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