From 1a1e78be6f34655eafc0ef4dfc222d260c3b8733 Mon Sep 17 00:00:00 2001
From: Andy Cedilnik <andy.cedilnik@kitware.com>
Date: Mon, 13 Jun 2005 09:59:48 -0400
Subject: ENH: Rearange and cleanup

---
 Source/cmCommandArgumentParser.y | 90 ++++++++++++++++++++++------------------
 1 file changed, 50 insertions(+), 40 deletions(-)

diff --git a/Source/cmCommandArgumentParser.y b/Source/cmCommandArgumentParser.y
index dc1b9ee..edcb190 100644
--- a/Source/cmCommandArgumentParser.y
+++ b/Source/cmCommandArgumentParser.y
@@ -49,7 +49,8 @@ YY_DECL;
 static void cmCommandArgumentError(yyscan_t yyscanner, const char* message);
 
 #define YYDEBUG 1
-#define YYMAXDEPTH 10000000
+//#define YYMAXDEPTH 100000
+//#define YYINITDEPTH 10000
 
 
 #define calCheckEmpty(cnt) yyGetParser->CheckEmpty(__LINE__, cnt, yyvsp);
@@ -81,6 +82,7 @@ static void cmCommandArgumentError(yyscan_t yyscanner, const char* message);
 %token cal_LCURLY
 %token cal_RCURLY
 %token cal_NAME
+%token cal_BSLASH
 %token cal_SYMBOL
 %token cal_AT
 %token cal_ERROR
@@ -92,7 +94,7 @@ static void cmCommandArgumentError(yyscan_t yyscanner, const char* message);
 
 
 Start:
-Goal
+GoalWithOptionalBackSlash
 {
   calElementStart(1);
   calCheckEmpty(1);
@@ -100,50 +102,37 @@ Goal
   yyGetParser->SetResult($<str>1);
 }
 
-Goal:
-{
-  calElementStart(0);
-  calCheckEmpty(0);
-  $<str>$ = 0;
-}
-|
-String Goal
-{
-  calElementStart(2);
-  calCheckEmpty(2);
-  $<str>$ = yyGetParser->CombineUnions($<str>1, $<str>2);
-}
-
-String:
-TextWithRCurly
+GoalWithOptionalBackSlash:
+Goal
 {
   calElementStart(1);
   calCheckEmpty(1);
   $<str>$ = $<str>1;
 }
 |
-Variable
+Goal cal_BSLASH
 {
-  calElementStart(1);
-  calCheckEmpty(1);
-  $<str>$ = $<str>1;
+  calElementStart(2);
+  calCheckEmpty(2);
+  $<str>$ = yyGetParser->CombineUnions($<str>1, $<str>2);
 }
 
-MultipleIds:
+Goal:
 {
   calElementStart(0);
   calCheckEmpty(0);
+  $<str>$ = 0;
 }
 |
-ID MultipleIds
+String Goal
 {
   calElementStart(2);
   calCheckEmpty(2);
   $<str>$ = yyGetParser->CombineUnions($<str>1, $<str>2);
 }
 
-ID:
-Text
+String:
+OuterText
 {
   calElementStart(1);
   calCheckEmpty(1);
@@ -157,7 +146,7 @@ Variable
   $<str>$ = $<str>1;
 }
 
-Text:
+OuterText:
 cal_NAME
 {
   calElementStart(1);
@@ -165,43 +154,35 @@ cal_NAME
   $<str>$ = $<str>1;
 }
 |
-cal_SYMBOL
-{
-  calElementStart(1);
-  calCheckEmpty(1);
-  $<str>$ = $<str>1;
-}
-
-TextWithRCurly:
-Text
+cal_AT
 {
   calElementStart(1);
   calCheckEmpty(1);
   $<str>$ = $<str>1;
 }
 |
-cal_AT
+cal_DOLLAR
 {
   calElementStart(1);
   calCheckEmpty(1);
   $<str>$ = $<str>1;
 }
 |
-cal_DOLLAR
+cal_LCURLY
 {
   calElementStart(1);
   calCheckEmpty(1);
   $<str>$ = $<str>1;
 }
 |
-cal_LCURLY
+cal_RCURLY
 {
   calElementStart(1);
   calCheckEmpty(1);
   $<str>$ = $<str>1;
 }
 |
-cal_RCURLY
+cal_SYMBOL
 {
   calElementStart(1);
   calCheckEmpty(1);
@@ -232,6 +213,35 @@ cal_ATNAME
   $<str>$ = yyGetParser->ExpandVariable($<str>1);
 }
 
+MultipleIds:
+{
+  calElementStart(0);
+  calCheckEmpty(0);
+}
+|
+ID MultipleIds
+{
+  calElementStart(2);
+  calCheckEmpty(2);
+  $<str>$ = yyGetParser->CombineUnions($<str>1, $<str>2);
+}
+
+ID:
+cal_NAME
+{
+  calElementStart(1);
+  calCheckEmpty(1);
+  $<str>$ = $<str>1;
+}
+|
+Variable
+{
+  calElementStart(1);
+  calCheckEmpty(1);
+  $<str>$ = $<str>1;
+}
+
+
 %%
 /* End of grammar */
 
-- 
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