From: Kenneth Graunke <kenneth@whitecape.org>
Date: Thu, 19 Aug 2010 00:38:05 +0000 (-0700)
Subject: glcpp: Add basic #line support (adapted from the main compiler).
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=9cf62bdfeb3982405b9360500d7e0fa52036f38f;p=mesa.git

glcpp: Add basic #line support (adapted from the main compiler).
---

diff --git a/src/glsl/glcpp/glcpp-lex.l b/src/glsl/glcpp/glcpp-lex.l
index a14e580ab1a..c81bd044a2a 100644
--- a/src/glsl/glcpp/glcpp-lex.l
+++ b/src/glsl/glcpp/glcpp-lex.l
@@ -100,6 +100,37 @@ HEXADECIMAL_INTEGER	0[xX][0-9a-fA-F]+[uU]?
 	return OTHER;
 }
 
+{HASH}line{HSPACE}+{DECIMAL_INTEGER}{HSPACE}+{DECIMAL_INTEGER}{HSPACE}*$ {
+	/* Eat characters until the first digit is
+	 * encountered
+	 */
+	char *ptr = yytext;
+	while (!isdigit(*ptr))
+		ptr++;
+
+	/* Subtract one from the line number because
+	 * yylineno is zero-based instead of
+	 * one-based.
+	 */
+	yylineno = strtol(ptr, &ptr, 0) - 1;
+	yylloc->source = strtol(ptr, NULL, 0);
+}
+
+{HASH}line{HSPACE}+{DECIMAL_INTEGER}{HSPACE}*$ {
+	/* Eat characters until the first digit is
+	 * encountered
+	 */
+	char *ptr = yytext;
+	while (!isdigit(*ptr))
+		ptr++;
+
+	/* Subtract one from the line number because
+	 * yylineno is zero-based instead of
+	 * one-based.
+	 */
+	yylineno = strtol(ptr, &ptr, 0) - 1;
+}
+
 {HASH}ifdef/.*\n {
 	yyextra->lexing_if = 1;
 	yyextra->space_tokens = 0;