From: Clifford Wolf <clifford@clifford.at>
Date: Tue, 11 Mar 2014 13:06:57 +0000 (+0100)
Subject: Added support for `line compiler directive
X-Git-Tag: yosys-0.3.0~66
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=9992026a8d4482abd8fbae8cb246a87cbbbde364;p=yosys.git

Added support for `line compiler directive
---

diff --git a/frontends/verilog/lexer.l b/frontends/verilog/lexer.l
index 79f44b4a6..e3e5e4ab2 100644
--- a/frontends/verilog/lexer.l
+++ b/frontends/verilog/lexer.l
@@ -75,6 +75,17 @@ namespace VERILOG_FRONTEND {
 	ln_stack.pop_back();
 }
 
+"`line"[ \t]+[^ \t\r\n]+[ \t]+\"[^ \r\n]+\"[^\r\n]*\n {
+	char *p = yytext + 5;
+	while (*p == ' ' || *p == '\t') p++;
+	frontend_verilog_yyset_lineno(atoi(p));
+	while (*p && *p != ' ' && *p != '\t') p++;
+	while (*p == ' ' || *p == '\t') p++;
+	char *q = *p ? p + 1 : p;
+	while (*q && *q != '"') q++;
+	current_filename = std::string(p).substr(1, q-p-1);
+}
+
 "`file_notfound "[^\n]* {
 	log_error("Can't open include file `%s'!\n", yytext + 15);
 }