From 8054fad890bbb6668cb2eb2fb3118222bada5975 Mon Sep 17 00:00:00 2001
From: Guido van Rossum <guido@python.org>
Date: Tue, 26 Oct 1993 15:19:44 +0000
Subject: Changes to accept double-quoted strings on input.

---
 Parser/tokenizer.c | 28 +++++++++++++++++++++++++++-
 Python/compile.c   |  6 ++++--
 2 files changed, 31 insertions(+), 3 deletions(-)

diff --git a/Parser/tokenizer.c b/Parser/tokenizer.c
index 725a2f1..6504e0c 100644
--- a/Parser/tokenizer.c
+++ b/Parser/tokenizer.c
@@ -564,7 +564,7 @@ tok_get(tok, p_start, p_end)
 		return NUMBER;
 	}
 	
-	/* String */
+	/* String (single quotes) */
 	if (c == '\'') {
 		for (;;) {
 			c = tok_nextc(tok);
@@ -590,6 +590,32 @@ tok_get(tok, p_start, p_end)
 		return STRING;
 	}
 	
+	/* String (double quotes) */
+	if (c == '\"') {
+		for (;;) {
+			c = tok_nextc(tok);
+			if (c == '\n' || c == EOF) {
+				tok->done = E_TOKEN;
+				tok->cur = tok->inp;
+				return ERRORTOKEN;
+			}
+			if (c == '\\') {
+				c = tok_nextc(tok);
+				*p_end = tok->cur;
+				if (c == '\n' || c == EOF) {
+					tok->done = E_TOKEN;
+					tok->cur = tok->inp;
+					return ERRORTOKEN;
+				}
+				continue;
+			}
+			if (c == '\"')
+				break;
+		}
+		*p_end = tok->cur;
+		return STRING;
+	}
+	
 	/* Line continuation */
 	if (c == '\\') {
 		c = tok_nextc(tok);
diff --git a/Python/compile.c b/Python/compile.c
index 2a1a2b4..685a806 100644
--- a/Python/compile.c
+++ b/Python/compile.c
@@ -481,13 +481,14 @@ parsestr(s)
 	char *buf;
 	char *p;
 	int c;
-	if (*s != '\'') {
+	int quote = *s;
+	if (quote != '\'' && quote != '\"') {
 		err_badcall();
 		return NULL;
 	}
 	s++;
 	len = strlen(s);
-	if (s[--len] != '\'') {
+	if (s[--len] != quote) {
 		err_badcall();
 		return NULL;
 	}
@@ -505,6 +506,7 @@ parsestr(s)
 		/* XXX This assumes ASCII! */
 		case '\\': *p++ = '\\'; break;
 		case '\'': *p++ = '\''; break;
+		case '\"': *p++ = '\"'; break;
 		case 'b': *p++ = '\b'; break;
 		case 'f': *p++ = '\014'; break; /* FF */
 		case 't': *p++ = '\t'; break;
-- 
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