Mesa (master): glcpp: Support #elif(expression) with no intervening space.

[Matt Turner]

Module: Mesa
Branch: master
Commit: c3a465ae98be6db1aee582f15380944b8faaeafc
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=c3a465ae98be6db1aee582f15380944b8faaeafc

Author: Matt Turner <mattst88 at gmail.com>
Date:   Mon Nov 26 11:53:45 2012 -0800

glcpp: Support #elif(expression) with no intervening space.

And add test cases to ensure that this works
	- 110 verifies that glcpp rejects #elif<digits> which glcpp
	  previously accepted.
	- 111 verifies that glcpp accepts #if followed immediately by
	  (, +, -, !, or ~.
	- 112 does the same as 111 but for #elif.

See 17f9beb6 for #if change.
Reviewed-by: Carl Worth <cworth at cworth.org>

---

 src/glsl/glcpp/glcpp-lex.l                         |    2 +-
 .../tests/110-no-space-digits-after-hash-elif.c    |    3 ++
 .../110-no-space-digits-after-hash-elif.c.expected |    4 +++
 .../tests/111-no-space-operator-after-hash-if.c    |   19 +++++++++++++++
 .../111-no-space-operator-after-hash-if.c.expected |   20 ++++++++++++++++
 .../tests/112-no-space-operator-after-hash-elif.c  |   24 +++++++++++++++++++
 ...12-no-space-operator-after-hash-elif.c.expected |   25 ++++++++++++++++++++
 7 files changed, 96 insertions(+), 1 deletions(-)

diff --git a/src/glsl/glcpp/glcpp-lex.l b/src/glsl/glcpp/glcpp-lex.l
index 4f0dd34..fd28711 100644
--- a/src/glsl/glcpp/glcpp-lex.l
+++ b/src/glsl/glcpp/glcpp-lex.l
@@ -158,7 +158,7 @@ HEXADECIMAL_INTEGER	0[xX][0-9a-fA-F]+[uU]?
 	return HASH_IF;
 }
 
-{HASH}elif {
+{HASH}elif/[^_a-zA-Z0-9] {
 	yyextra->lexing_if = 1;
 	yyextra->space_tokens = 0;
 	return HASH_ELIF;
diff --git a/src/glsl/glcpp/tests/110-no-space-digits-after-hash-elif.c b/src/glsl/glcpp/tests/110-no-space-digits-after-hash-elif.c
new file mode 100644
index 0000000..6d7d0f3
--- /dev/null
+++ b/src/glsl/glcpp/tests/110-no-space-digits-after-hash-elif.c
@@ -0,0 +1,3 @@
+#if 1
+#elif110
+#endif
diff --git a/src/glsl/glcpp/tests/110-no-space-digits-after-hash-elif.c.expected b/src/glsl/glcpp/tests/110-no-space-digits-after-hash-elif.c.expected
new file mode 100644
index 0000000..6d5e9d1
--- /dev/null
+++ b/src/glsl/glcpp/tests/110-no-space-digits-after-hash-elif.c.expected
@@ -0,0 +1,4 @@
+0:2(2): preprocessor error: Invalid tokens after #
+
+
+
diff --git a/src/glsl/glcpp/tests/111-no-space-operator-after-hash-if.c b/src/glsl/glcpp/tests/111-no-space-operator-after-hash-if.c
new file mode 100644
index 0000000..b341337
--- /dev/null
+++ b/src/glsl/glcpp/tests/111-no-space-operator-after-hash-if.c
@@ -0,0 +1,19 @@
+#if(1)
+success
+#endif
+
+#if+1
+success
+#endif
+
+#if-1
+success
+#endif
+
+#if!1
+success
+#endif
+
+#if~1
+success
+#endif
diff --git a/src/glsl/glcpp/tests/111-no-space-operator-after-hash-if.c.expected b/src/glsl/glcpp/tests/111-no-space-operator-after-hash-if.c.expected
new file mode 100644
index 0000000..e083008
--- /dev/null
+++ b/src/glsl/glcpp/tests/111-no-space-operator-after-hash-if.c.expected
@@ -0,0 +1,20 @@
+
+success
+
+
+
+success
+
+
+
+success
+
+
+
+
+
+
+
+success
+
+
diff --git a/src/glsl/glcpp/tests/112-no-space-operator-after-hash-elif.c b/src/glsl/glcpp/tests/112-no-space-operator-after-hash-elif.c
new file mode 100644
index 0000000..e8221bc
--- /dev/null
+++ b/src/glsl/glcpp/tests/112-no-space-operator-after-hash-elif.c
@@ -0,0 +1,24 @@
+#if 0
+#elif(1)
+success
+#endif
+
+#if 0
+#elif+1
+success
+#endif
+
+#if 0
+#elif-1
+success
+#endif
+
+#if 0
+#elif!1
+success
+#endif
+
+#if 0
+#elif~1
+success
+#endif
diff --git a/src/glsl/glcpp/tests/112-no-space-operator-after-hash-elif.c.expected b/src/glsl/glcpp/tests/112-no-space-operator-after-hash-elif.c.expected
new file mode 100644
index 0000000..3b5479a
--- /dev/null
+++ b/src/glsl/glcpp/tests/112-no-space-operator-after-hash-elif.c.expected
@@ -0,0 +1,25 @@
+
+
+success
+
+
+
+
+success
+
+
+
+
+success
+
+
+
+
+
+
+
+
+
+success
+
+