From 253a5639ae170a16055e2c8a76d12335342f6d51 Mon Sep 17 00:00:00 2001
From: Jakob Fries <jakob.fries@gmail.com>
Date: Thu, 17 Jan 2008 23:04:53 +0000
Subject: Console should now lex and parse strings correctly (including
 escaping).

---
 src/engine/e_console.c | 37 ++++++++++++++++++++++++++++++++-----
 src/engine/e_console.h |  2 --
 2 files changed, 32 insertions(+), 7 deletions(-)

(limited to 'src/engine')

diff --git a/src/engine/e_console.c b/src/engine/e_console.c
index a8d01828..1479d157 100644
--- a/src/engine/e_console.c
+++ b/src/engine/e_console.c
@@ -18,10 +18,32 @@ enum
 static const char *store_string(struct lexer_result *res, const char *str, int len)
 {
 	const char *ptr = res->next_string;
+	int escaped = 0;
 
+	while (len)
+	{
+		if (!escaped && *str == '\\')
+		{
+			escaped = 1;
+		}
+		else
+		{
+			escaped = 0;
+
+			*res->next_string++ = *str;
+		}
+
+		str++;
+		len--;
+	}
+
+	*res->next_string++ = 0;
+
+	/*
 	memcpy(res->next_string, str, len);
 	res->next_string[len] = 0;
 	res->next_string += len+1;
+	*/
 
 	return ptr;
 }
@@ -39,12 +61,12 @@ static void save_token(struct lexer_result *res, int *index, const char **start,
     ++*index; 
 } 
  
-int digit(char c) 
+static int digit(char c) 
 { 
     return '0' <= c && c <= '9'; 
 } 
  
-int lex(const char *line, struct lexer_result *res) 
+static int lex(const char *line, struct lexer_result *res) 
 { 
     int state = STATE_START, i = 0; 
 	int length_left = CONSOLE_MAX_STR_LENGTH;
@@ -53,10 +75,10 @@ int lex(const char *line, struct lexer_result *res)
 
 	memset(res, 0, sizeof(*res));
 	res->next_string = res->string_storage;
- 
+
     for (c = start = line; *c != '\0' && res->num_tokens < MAX_TOKENS && length_left; ++c, --length_left) 
     { 
-        /* printf("State: %d\n", state); */
+        /* printf("State: %d.. c: %c\n", state, *c); */
         switch (state) 
         { 
         case STATE_START: 
@@ -66,7 +88,9 @@ int lex(const char *line, struct lexer_result *res)
                 state = STATE_INT; 
             else if (*c == '.') 
                 state = STATE_POT_FLOAT; 
-            else 
+            else if (*c == '"')
+				state = STATE_QUOTED;
+			else
                 state = STATE_STRING; 
             break; 
  
@@ -106,7 +130,10 @@ int lex(const char *line, struct lexer_result *res)
  
         case STATE_QUOTED: 
             if (*c == '"') 
+			{
+				++start;
                 save_token(res, &i, &start, c, &state, TOKEN_STRING); 
+			}
             else if (*c == '\\') 
                 state = STATE_ESCAPE; 
             break; 
diff --git a/src/engine/e_console.h b/src/engine/e_console.h
index c383e8b5..77057df3 100644
--- a/src/engine/e_console.h
+++ b/src/engine/e_console.h
@@ -31,8 +31,6 @@ struct lexer_result
     unsigned int num_tokens; 
 }; 
 
-int lex(const char *line, struct lexer_result *result);
-
 int extract_result_string(struct lexer_result *result, int index, const char **str);
 int extract_result_int(struct lexer_result *result, int index, int *i);
 int extract_result_float(struct lexer_result *result, int index, float *f);
-- 
cgit 1.4.1