From 560f2c0e1f6c509047dd33d4f987837408fc32ff Mon Sep 17 00:00:00 2001
From: Simon Schmidt <simon.schmidt@htp-tel.de>
Date: Fri, 17 Mar 2017 22:26:50 +0100
Subject: [PATCH] erweitert

---
 Makefile             |  2 +-
 Unbenanntes Dokument |  0
 buildmacro.c         | 69 ++++++++++++++++++++++++++++++++++++++++++++
 buildmacro.h         | 29 +++++++++++++++++++
 luab.c               | 38 ++++++++++++++++++++++--
 luab.h               |  5 +++-
 main.c               | 20 +++++++++----
 parser.c             | 46 +++++++++++++++++++++++++++--
 test.txt             |  7 ++---
 tokenizer.c          |  1 +
 10 files changed, 201 insertions(+), 16 deletions(-)
 delete mode 100644 Unbenanntes Dokument
 create mode 100644 buildmacro.c
 create mode 100644 buildmacro.h

diff --git a/Makefile b/Makefile
index 3402a0a..3605188 100644
--- a/Makefile
+++ b/Makefile
@@ -15,7 +15,7 @@ lib.a:
 	$(CC) -c $< -o $@
 
 xpp += main.o
-xpp += patlist.o strtest.o output.o tokenizer.o luab.o parser.c
+xpp += patlist.o strtest.o output.o tokenizer.o luab.o parser.o buildmacro.o
 xpp += lib.a lua.a
 
 xpp: $(xpp)
diff --git a/Unbenanntes Dokument b/Unbenanntes Dokument
deleted file mode 100644
index e69de29..0000000
diff --git a/buildmacro.c b/buildmacro.c
new file mode 100644
index 0000000..0bdfc91
--- /dev/null
+++ b/buildmacro.c
@@ -0,0 +1,69 @@
+/*
+ * Copyright (c) 2017 Simon Schmidt
+ * 
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ * 
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ * 
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+#include <stdarg.h>
+#include "buildmacro.h"
+
+sds bdmcr_build_macro(sds* args,int n,sds body){
+	int i;
+	sds dest = smust(sdsnew("local "));
+	for(i=0;i<n;++i){
+		if(i)dest = smust(sdscat(dest,","));
+		dest = smust(sdscatsds(dest,args[i]));
+	}
+	dest = smust(sdscat(dest," = ... ;\n"));
+	for(i=0;i<n;++i){
+		dest = smust(sdscatsds(dest,args[i]));
+		dest = smust(sdscat(dest," = normalize("));
+		dest = smust(sdscatsds(dest,args[i]));
+		dest = smust(sdscat(dest,");\n"));
+	}
+	dest = smust(sdscat(dest,"return solve("));
+	dest = smust(sdscatsds(dest,body));
+	dest = smust(sdscat(dest,");\n"));
+	return dest;
+}
+
+sds bdmcr_build_macro_stub(const char* body, ...){
+	const char* sp;
+	static sds margs[1024];
+	sds sbody,sresult;
+	va_list ap;
+	int i=0,l = 1024;
+	
+	sbody = smust(sdsnew(body));
+	
+	va_start(ap, body);
+	for(i=0;i<1024;++i){
+		sp = va_arg(ap, const char*);
+		if(!sp){ l = i; break; }
+		margs[i] = smust(sdsnew(sp));
+	}
+	va_end(ap);
+	
+	sresult = bdmcr_build_macro(margs,l,sbody);
+	sdsclear(sbody);
+	for(i=0;i<l;++i){
+		sdsclear(margs[i]);
+	}
+	return sresult;
+}
+
diff --git a/buildmacro.h b/buildmacro.h
new file mode 100644
index 0000000..6e44390
--- /dev/null
+++ b/buildmacro.h
@@ -0,0 +1,29 @@
+/*
+ * Copyright (c) 2017 Simon Schmidt
+ * 
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ * 
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ * 
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+#pragma once
+
+#include "baselib.h"
+
+sds bdmcr_build_macro(sds* args,int n,sds body);
+sds bdmcr_build_macro_stub(const char* body, ...);
+#define bdmcr_build_macro_c(...) bdmcr_build_macro_stub(__VA_ARGS__,(void*)0)
+
diff --git a/luab.c b/luab.c
index 07d2051..155e1bd 100644
--- a/luab.c
+++ b/luab.c
@@ -43,6 +43,29 @@ static int solve(lua_State *L){
 	OutputStream_detroy(dest);
 	return 1;
 }
+static int normalize (lua_State *L){
+	int i,n;
+	n = lua_gettop(L);
+	for(i=1;i<=n;i++){
+		switch(lua_type(L,i)){
+		case LUA_TNIL:
+		case LUA_TBOOLEAN:
+		case LUA_TTABLE:
+		case LUA_TFUNCTION:
+		case LUA_TUSERDATA:
+		case LUA_TTHREAD:
+		case LUA_TLIGHTUSERDATA:
+			lua_pushliteral(L,"");
+			lua_replace(L,i);
+			break;
+		case LUA_TNUMBER:
+			lua_tostring(L,i);
+			break;
+		}
+	}
+	lua_settop(L,n);
+	return 1;
+}
 
 #define register_const(L,name) (lua_pushinteger(L, name),lua_setglobal(L, #name ))
 lua_State* create_lua(){
@@ -50,14 +73,17 @@ lua_State* create_lua(){
 	luaL_openlibs(L);
 	lua_settop(L,0);
 	lua_register(L,"solve",solve);
+	lua_register(L,"normalize",normalize);
 	lua_newtable(L);
 	lua_setglobal(L,"MACROS");
 	lua_newtable(L);
 	lua_setglobal(L,"MACROT");
-	luaL_loadstring(L, "function(n,f,t) MACROS[n]=f; MACROT[n]=t; return nil end");
+	//luaL_loadstring(L, "function(n,f,t) MACROS[n]=f; MACROT[n]=t; return nil end");
+	luaL_loadstring(L, "local n,f,t = ...; MACROS[n]=f; MACROT[n]=t; return nil");
 	lua_setglobal(L,"REGISTER");
 	register_const(L, MT_ARGS);
 	register_const(L, MT_BODY);
+	register_const(L, MT_SEMI);
 	return L;
 }
 sds luab_tosds(lua_State* L,int index){
@@ -103,7 +129,15 @@ void luab_setmacro(lua_State* L, const char* macro, const char* code,int type){
 	lua_getglobal(L,"MACROT");
 	lua_pushinteger(L, type);
 	lua_setfield(L,1,macro);
-	printf("gettop %d\n",lua_gettop(L));
 	lua_settop(L,0);
 }
+sds luab_eval(lua_State* L,sds code){
+	luaL_loadstring(L, code);
+	lua_pcall(L,0,1,0);
+	const char* c = lua_tostring(L,-1);
+	if(!c) c="";
+	sds ret = smust(sdsnew(c));
+	lua_settop(L,0);
+	return ret;
+}
 
diff --git a/luab.h b/luab.h
index 008a507..c148185 100644
--- a/luab.h
+++ b/luab.h
@@ -27,6 +27,7 @@
 enum {
 	MT_ARGS = 1<<5,
 	MT_BODY = 1<<6,
+	MT_SEMI = 1<<7, /* ARGS: Semicolon instead of comma. */
 };
 
 lua_State* create_lua();
@@ -34,4 +35,6 @@ sds luab_tosds(lua_State* L,int index);
 void luab_pushsds(lua_State* L,sds str);
 void luab_call(lua_State* L);
 int  luab_getmacro(lua_State* L, sds macro);
-void luab_setmacro(lua_State* L, const char* macro, const char* code,int type);
\ No newline at end of file
+void luab_setmacro(lua_State* L, const char* macro, const char* code,int type);
+
+sds luab_eval(lua_State* L,sds code);
diff --git a/main.c b/main.c
index e808b75..af0d983 100644
--- a/main.c
+++ b/main.c
@@ -27,24 +27,32 @@
 #include "luab.h"
 #include "parser.h"
 #include "luasrc/lauxlib.h"
+#include "buildmacro.h"
 
 int main(int argc,const char** argv){
 	struct tokenizer tok;
 	tok.buffer = smust(sdsempty());
 	tok.source = ptrmust(fopen("test.txt","r"));
 	lua_State* L = create_lua();
-
-	luab_setmacro(L,"tail_for","local pre,con,pos,body = ...; return solve(pre..';\\ndo {\\n'..body..'\\n'..pos..';\\n} while('..con..');')",MT_ARGS|MT_BODY);
 	
-	OutputStream dest = OutputStream_new();
-	//OutputStream dest = FILE_asStream(stdout);
+	sds macro2 = bdmcr_build_macro_c(
+		"pre..';\\ndo {\\n'..body..'\\n'..pos..';\\n} while('..con..');'",
+		"body","pre","con","pos"
+	);
 	
-	tokenizer_init();
+	luab_setmacro(L,"tail_for",macro2,MT_ARGS|MT_BODY|MT_SEMI);
+	
+	sds d = smust(sdsnew("REGISTER"));
+	printf("%s\n",luab_eval(L,d));
 	
+	//OutputStream dest = OutputStream_new();
+	OutputStream dest = FILE_asStream(stdout);
+	
+	tokenizer_init();
 	
 	parser_parse(&tok,L,dest);
 	
-	printf("%s\n",(char*)dest->data);
+	//printf("%s\n",(char*)dest->data);
 	return 0;
 }
 
diff --git a/parser.c b/parser.c
index 03d11be..9a9a4af 100644
--- a/parser.c
+++ b/parser.c
@@ -61,6 +61,46 @@ static void parser_parse_args(struct tokenizer *t,lua_State* L){
 	OutputStream_detroy(dest);
 }
 
+static void parser_parse_args_semicolon(struct tokenizer *t,lua_State* L){
+	OutputStream dest = OutputStream_new();
+	int c = 0;
+	sds s = 0;
+	for(;;){
+		s = tokenize_get(t,(OutputStream)0);
+		if(!s) {
+			fprintf(stderr,"unexpected EOF\n");
+			abort();
+		}
+		switch(*s){
+		case '(':
+			c++;
+			break;
+		case ')':
+			if(!c){
+				sdsclear(s);
+				goto end;
+			}
+			c--;
+			break;
+		case ';':
+			if(!c){
+				luab_pushsds(L,(sds)(dest->data) );
+				sdssetlen((sds)(dest->data),0);
+				*((sds)(dest->data)) = 0;
+				sdsclear(s);
+				continue;
+			}
+			break;
+		}
+		OutputStream_write(dest,s,sdslen(s));
+		OutputStream_write(dest," ",1);
+		sdsclear(s);
+	}
+end:
+	luab_pushsds(L,(sds)(dest->data) );
+	OutputStream_detroy(dest);
+}
+
 static void parser_parse_body(struct tokenizer *t,lua_State* L){
 	OutputStream dest = OutputStream_new();
 	int c = 0;
@@ -95,7 +135,7 @@ static void parser_parse_body(struct tokenizer *t,lua_State* L){
 
 void parser_parse(struct tokenizer *t,lua_State* L,OutputStream dest){
 	sds s;
-	int i;
+	int i,N;
 	for(;;){
 		s = tokenize_get(t,dest);
 		
@@ -118,7 +158,8 @@ void parser_parse(struct tokenizer *t,lua_State* L,OutputStream dest){
 				abort();
 			}
 			sdsclear(s);
-			parser_parse_args(t,L);
+			if(i&MT_SEMI) parser_parse_args_semicolon(t,L);
+			else          parser_parse_args(t,L);
 		}
 		if(i&MT_BODY){
 			s = tokenize_get(t,dest);
@@ -132,6 +173,7 @@ void parser_parse(struct tokenizer *t,lua_State* L,OutputStream dest){
 			}
 			sdsclear(s);
 			parser_parse_body(t,L);
+			lua_insert(L,2);
 		}
 		
 		luab_call(L);
diff --git a/test.txt b/test.txt
index 9267077..27ae5bf 100644
--- a/test.txt
+++ b/test.txt
@@ -2,11 +2,10 @@
 int main(int argc,const char** argv){
 	int i,j;
 	/* for(i=0;i<argc;++i) */
-	tail_for(i=0,i<argc,++i) {
-		tail_for(j=0,j<10,++j) {
+	//tail_for(i=0;i<argc;++i)
+	tail_for(i=0;i<argc;++i) {
+		tail_for(j=0;j<10;++j) {
 			printf("%s\n",argv[i]);
 		}
 	}
 }
-
-
diff --git a/tokenizer.c b/tokenizer.c
index c785e7b..e6ce54e 100644
--- a/tokenizer.c
+++ b/tokenizer.c
@@ -114,6 +114,7 @@ static int tokenizer_refill(struct tokenizer *t,int force){
 	t->buffer = smust(sdscat(t->buffer,data));
 	return 2;
 }
+#define LINEP printf("\n%d\n",__LINE__);
 sds tokenize_get(struct tokenizer *t, OutputStream targ){
 	const char* eoc;
 	size_t skp;