From: Matthew Fernandez <matthew.fernandez@gmail.com>
Date: Wed, 26 May 2021 01:45:59 +0000 (-0700)
Subject: remove unused exrewind()
X-Git-Tag: 2.47.3~19^2
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=26d412040d19e29a5ad2908ce44e16cfe9f1d7d1;p=graphviz

remove unused exrewind()
---

diff --git a/lib/expr/CMakeLists.txt b/lib/expr/CMakeLists.txt
index 655119749..b11c6ea0c 100644
--- a/lib/expr/CMakeLists.txt
+++ b/lib/expr/CMakeLists.txt
@@ -47,7 +47,6 @@ add_library(expr STATIC
     exeval.c
     exexpr.c
     exopen.c
-    exrewind.c
     extoken.c
     extype.c
     exzero.c
diff --git a/lib/expr/Makefile.am b/lib/expr/Makefile.am
index 925a46c42..6f221e488 100644
--- a/lib/expr/Makefile.am
+++ b/lib/expr/Makefile.am
@@ -28,7 +28,7 @@ pdf =
 endif
 
 libexpr_C_la_SOURCES = excc.c excontext.c exdata.c exerror.c \
-	exeval.c exexpr.c exopen.c exrewind.c extoken.c \
+	exeval.c exexpr.c exopen.c extoken.c \
 	extype.c exzero.c exparse.y exnospace.c exstash.c 
 libexpr_C_la_LIBADD = \
 	$(top_builddir)/lib/ast/libast_C.la \
diff --git a/lib/expr/Makefile.nmake b/lib/expr/Makefile.nmake
index 5bfdfec1e..d097d638f 100644
--- a/lib/expr/Makefile.nmake
+++ b/lib/expr/Makefile.nmake
@@ -11,7 +11,7 @@ CCFLAGS = $(CC.OPTIMIZE) $(CC.SUFFIX.DYNAMIC:@?$(CC.DLL)??)
 
 expr 2.0 :LIBRARY: expr.h exlib.h exgram.h exparse.y \
 		excc.c excontext.c exdata.c exeval.c exexpr.c \
-		exerror.c exopen.c exrewind.c extoken.c extype.c \
+		exerror.c exopen.c extoken.c extype.c \
 		exzero.c
 
 if CC.HOSTTYPE == "*.i386" || "$(-mam)" == "static*"
diff --git a/lib/expr/expr.3 b/lib/expr/expr.3
index 2fad380b3..c00de830b 100644
--- a/lib/expr/expr.3
+++ b/lib/expr/expr.3
@@ -46,7 +46,6 @@ void             exfreenode(Expr_t*, Exnode_t*);
 int              expush(Expr_t*, const char*, int, const char*, Sfio_t*);
 int              expop(Expr_t*);
 int              excomp(Expr_t*, const char*, int, const char*, Sfio_t*);
-int              exrewind(Expr_t*);
 int              extoken(Expr_t*);
 char*            extype(int);
 Extype_t         exzero(int);
@@ -58,6 +57,5 @@ exopen() is the first function called.
 exclose() is the last function called.
 exccopen() is the called if code generation will be used.
 exccclose() releases the state information allocated in exccopen().
-exrewind() restores statement start information saved by exstatement().
 
 .SH "SEE ALSO"
diff --git a/lib/expr/expr.h b/lib/expr/expr.h
index e3cea3532..0d908cfaa 100644
--- a/lib/expr/expr.h
+++ b/lib/expr/expr.h
@@ -289,7 +289,6 @@ extern char*		exnospace(void);
 extern Expr_t*		exopen(Exdisc_t*);
 extern int		expop(Expr_t*);
 extern int		expush(Expr_t*, const char*, int, const char*, Sfio_t*);
-extern int		exrewind(Expr_t*);
 extern char*		exstash(Sfio_t*, Vmalloc_t*);
 extern int		extoken_fn(Expr_t*);
 extern char*		exstring(Expr_t *, char *);
diff --git a/lib/expr/expr.vcxproj b/lib/expr/expr.vcxproj
index 7866ad8d4..d7f3e432f 100644
--- a/lib/expr/expr.vcxproj
+++ b/lib/expr/expr.vcxproj
@@ -98,7 +98,6 @@
     <ClCompile Include="exexpr.c" />
     <ClCompile Include="exnospace.c" />
     <ClCompile Include="exopen.c" />
-    <ClCompile Include="exrewind.c" />
     <ClCompile Include="exstash.c" />
     <ClCompile Include="extoken.c" />
     <ClCompile Include="extype.c" />
diff --git a/lib/expr/expr.vcxproj.filters b/lib/expr/expr.vcxproj.filters
index 2957568e1..7dace3a84 100644
--- a/lib/expr/expr.vcxproj.filters
+++ b/lib/expr/expr.vcxproj.filters
@@ -56,9 +56,6 @@
     <ClCompile Include="exopen.c">
       <Filter>Source Files</Filter>
     </ClCompile>
-    <ClCompile Include="exrewind.c">
-      <Filter>Source Files</Filter>
-    </ClCompile>
     <ClCompile Include="exstash.c">
       <Filter>Source Files</Filter>
     </ClCompile>
diff --git a/lib/expr/exrewind.c b/lib/expr/exrewind.c
deleted file mode 100644
index 9e7b3c411..000000000
--- a/lib/expr/exrewind.c
+++ /dev/null
@@ -1,49 +0,0 @@
-/*************************************************************************
- * Copyright (c) 2011 AT&T Intellectual Property 
- * All rights reserved. This program and the accompanying materials
- * are made available under the terms of the Eclipse Public License v1.0
- * which accompanies this distribution, and is available at
- * http://www.eclipse.org/legal/epl-v10.html
- *
- * Contributors: Details at https://graphviz.org
- *************************************************************************/
-
-/*
- * Glenn Fowler
- * AT&T Research
- *
- * expression library
- */
-
-#include <expr/exlib.h>
-#include <string.h>
-
-int
-exrewind(Expr_t* ex)
-{
-	int	n;
-
-	if (ex->linewrap)
-	{
-		exerror("too much pushback");
-		return -1;
-	}
-	if (!ex->input->pushback && !(ex->input->pushback = oldof(0, char, sizeof(ex->line), 3)))
-	{
-		exnospace();
-		return -1;
-	}
-	if ((n = ex->linep - ex->line))
-		memcpy(ex->input->pushback, ex->line, n);
-	if (ex->input->peek)
-	{
-		ex->input->pushback[n++] = ex->input->peek;
-		ex->input->peek = 0;
-	}
-	ex->input->pushback[n++] = ' ';
-	ex->input->pushback[n] = 0;
-	ex->input->pp = ex->input->pushback;
-	ex->input->nesting = ex->nesting;
-	setcontext(ex);
-	return 0;
-}