From 3a9ac1951af770bda262a192a76fa427e291678a Mon Sep 17 00:00:00 2001
From: Steven Knight <knight@baldmt.com>
Date: Fri, 22 Oct 2004 22:22:44 +0000
Subject: Support .lex and .yacc file suffixes.  (Matthew Doar)

---
 src/CHANGES.txt               |  4 ++++
 src/engine/SCons/Tool/lex.py  |  1 +
 src/engine/SCons/Tool/yacc.py |  2 ++
 test/LEX.py                   | 15 ++++++++++++++-
 test/YACC.py                  | 15 ++++++++++++++-
 5 files changed, 35 insertions(+), 2 deletions(-)

diff --git a/src/CHANGES.txt b/src/CHANGES.txt
index 9845e85..4cfc71c 100644
--- a/src/CHANGES.txt
+++ b/src/CHANGES.txt
@@ -25,6 +25,10 @@ RELEASE 0.97 - XXX
   - Add a set of canned PathOption validators:  PathExists (the default),
     PathIsFile, PathIsDir and PathIsDirCreate.
 
+  From Matthew Doar:
+
+  - Add support for .lex and .yacc file suffixes for Lex and Yacc files.
+
   From Eric Frias:
 
   - Huge performance improvement:  wrap the tuples representing an
diff --git a/src/engine/SCons/Tool/lex.py b/src/engine/SCons/Tool/lex.py
index 18acbbd..4a17fae 100644
--- a/src/engine/SCons/Tool/lex.py
+++ b/src/engine/SCons/Tool/lex.py
@@ -42,6 +42,7 @@ def generate(env):
     c_file, cxx_file = SCons.Tool.createCFileBuilders(env)
 
     c_file.add_action('.l', SCons.Defaults.LexAction)
+    c_file.add_action('.lex', SCons.Defaults.LexAction)
     cxx_file.add_action('.ll', SCons.Defaults.LexAction)
 
     env['LEX']      = env.Detect('flex') or 'lex'
diff --git a/src/engine/SCons/Tool/yacc.py b/src/engine/SCons/Tool/yacc.py
index ff3f040..2c93b7c 100644
--- a/src/engine/SCons/Tool/yacc.py
+++ b/src/engine/SCons/Tool/yacc.py
@@ -61,8 +61,10 @@ def generate(env):
     c_file, cxx_file = SCons.Tool.createCFileBuilders(env)
     
     c_file.add_action('.y', SCons.Defaults.YaccAction)
+    c_file.add_action('.yacc', SCons.Defaults.YaccAction)
     cxx_file.add_action('.yy', SCons.Defaults.YaccAction)
     c_file.add_emitter('.y', yEmitter)
+    c_file.add_emitter('.yacc', yEmitter)
     cxx_file.add_emitter('.yy', yyEmitter)
 
     env['YACC']      = env.Detect('bison') or 'yacc'
diff --git a/test/LEX.py b/test/LEX.py
index 90549bd..3f596fb 100644
--- a/test/LEX.py
+++ b/test/LEX.py
@@ -51,6 +51,7 @@ sys.exit(0)
 test.write('SConstruct', """
 env = Environment(LEX = r'%s mylex.py', tools=['default', 'lex'])
 env.Program(target = 'aaa', source = 'aaa.l')
+env.Program(target = 'bbb', source = 'bbb.lex')
 """ % python)
 
 test.write('aaa.l', r"""
@@ -64,9 +65,21 @@ main(int argc, char *argv[])
 }
 """)
 
-test.run(arguments = 'aaa' + _exe, stderr = None)
+test.write('bbb.lex', r"""
+int
+main(int argc, char *argv[])
+{
+	argv[argc++] = "--";
+	printf("LEX\n");
+	printf("bbb.lex\n");
+	exit (0);
+}
+""")
+
+test.run(arguments = '.', stderr = None)
 
 test.run(program = test.workpath('aaa' + _exe), stdout = "mylex.py\naaa.l\n")
+test.run(program = test.workpath('bbb' + _exe), stdout = "mylex.py\nbbb.lex\n")
 
 
 
diff --git a/test/YACC.py b/test/YACC.py
index 13203ff..062e4bc 100644
--- a/test/YACC.py
+++ b/test/YACC.py
@@ -66,6 +66,7 @@ sys.exit(0)
 test.write('SConstruct', """
 env = Environment(YACC = r'%s myyacc.py', tools=['default', 'yacc'])
 env.Program(target = 'aaa', source = 'aaa.y')
+env.Program(target = 'bbb', source = 'bbb.yacc')
 """ % python)
 
 test.write('aaa.y', r"""
@@ -79,9 +80,21 @@ main(int argc, char *argv[])
 }
 """)
 
-test.run(arguments = 'aaa' + _exe, stderr = None)
+test.write('bbb.yacc', r"""
+int
+main(int argc, char *argv[])
+{
+	argv[argc++] = "--";
+	printf("YACC\n");
+	printf("bbb.yacc\n");
+	exit (0);
+}
+""")
+
+test.run(arguments = '.', stderr = None)
 
 test.run(program = test.workpath('aaa' + _exe), stdout = "myyacc.py\naaa.y\n")
+test.run(program = test.workpath('bbb' + _exe), stdout = "myyacc.py\nbbb.yacc\n")
 
 
 
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