From 44fbfc51849e6bad4f7238ad2fd9724af331cea2 Mon Sep 17 00:00:00 2001
From: FUKUZAWA-Tadashi <alien@apple.nifty.jp>
Date: Tue, 12 Mar 2013 21:54:17 +0900
Subject: implement literal %W %w %s refactor string parsing

---
 include/mruby/compile.h | 28 +++++++++++++++++++++-------
 1 file changed, 21 insertions(+), 7 deletions(-)

(limited to 'include')

diff --git a/include/mruby/compile.h b/include/mruby/compile.h
index 382a5e6ff..45eb72403 100644
--- a/include/mruby/compile.h
+++ b/include/mruby/compile.h
@@ -58,16 +58,31 @@ struct mrb_parser_message {
   char* message;
 };
 
-/* heredoc parse type */
-enum heredoc_type {
-  heredoc_type_norm,            /* <<EOH */
-  heredoc_type_quote,		/* <<'EOH' */
+#define STR_FUNC_PARSING 0x01
+#define STR_FUNC_EXPAND  0x02
+#define STR_FUNC_REGEXP  0x04
+#define STR_FUNC_WORD    0x08
+#define STR_FUNC_SYMBOL  0x10
+#define STR_FUNC_ARRAY   0x20
+#define STR_FUNC_HEREDOC 0x40
+
+enum mrb_string_type {
+  str_not_parsing  = (0),
+  str_squote  = (STR_FUNC_PARSING),
+  str_dquote  = (STR_FUNC_PARSING|STR_FUNC_EXPAND),
+  str_regexp  = (STR_FUNC_PARSING|STR_FUNC_REGEXP|STR_FUNC_EXPAND),
+  str_sword   = (STR_FUNC_PARSING|STR_FUNC_WORD|STR_FUNC_ARRAY),
+  str_dword   = (STR_FUNC_PARSING|STR_FUNC_WORD|STR_FUNC_ARRAY|STR_FUNC_EXPAND),
+  str_ssym    = (STR_FUNC_PARSING|STR_FUNC_SYMBOL),
+  str_sheredoc = (STR_FUNC_PARSING|STR_FUNC_HEREDOC),
+  str_dheredoc = (STR_FUNC_PARSING|STR_FUNC_HEREDOC|STR_FUNC_EXPAND),
 };
+
 /* heredoc structure */
 struct mrb_parser_heredoc_info {
-  enum heredoc_type type;
   mrb_bool allow_indent:1;
   mrb_bool line_head:1;
+  enum mrb_string_type type;
   const char *term;
   int term_len;
   mrb_ast_node *doc;
@@ -85,8 +100,7 @@ struct mrb_parser_state {
   int column;
 
   enum mrb_lex_state_enum lstate;
-  int sterm;	/* string terminator :  ' ' means heredoc */
-  int regexp;
+  mrb_ast_node *lex_strterm; /* (type nest_level beg . end) */
 
   unsigned int cond_stack;
   unsigned int cmdarg_stack;
-- 
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