From 76ddc4083aa71a5a303e127a327770db2ce46611 Mon Sep 17 00:00:00 2001
From: Aleksey Chichenkov <a.chichenkov@initi.ru>
Date: Thu, 24 Jan 2019 18:10:15 +0300
Subject: [PATCH] add search string literal lexeme

---
 lexer.l                | 78 +++++++++++++++++++++++++++---------------
 parse_source_lexeme.js |  5 +++
 search_string.js       |  7 ++++
 3 files changed, 63 insertions(+), 27 deletions(-)
 create mode 100644 search_string.js

diff --git a/lexer.l b/lexer.l
index b1d146f..86f157a 100644
--- a/lexer.l
+++ b/lexer.l
@@ -11,6 +11,41 @@ var lex = [
     "INTEGER_LITERAL",
 ];
 
+var searchString = function (_str, _quote, _yylexstart, _yycursor) {
+    var found_back_slash = false;
+    _yycursor++;
+    while(_yycursor < _str.length){
+        var char = _str[_yycursor];
+        if(_quote == '"') {
+            switch (char) {
+                case "\\":
+                    found_back_slash = true;
+                    break;
+                case '"':
+                    if(!found_back_slash) {
+                        return { success: true, pos: _yycursor + 1 }
+                    }
+                    found_back_slash = false;
+                    break;
+            }
+        } else if(_quote == "'") {
+            switch (char) {
+                case "\\":
+                    found_back_slash = true;
+                    break;
+                case "'":
+                    if(!found_back_slash) {
+                        return { success: true, pos: _yycursor + 1 }
+                    }
+                    found_back_slash = false;
+                    break;
+            }
+        }
+        _yycursor++;
+    }
+
+    return {success: false, pos: _yycursor + 1 }
+};
 
 var addLexeme = function(_str, _yylexstart, _yycursor, _lexeme) {
     if(_lexeme !== "ERR"){
@@ -25,6 +60,10 @@ var unknownSymbol = function(_str, _yylexstart, _yycursor){
     throw print_f("Found unknown symbol on position: %s", _yycursor)
 };
 
+var notFoundCloseQuote = function (_str, _yylexstart, _yycursor) {
+    throw print_f("Not found close quote start: %s", _yycursor)
+};
+
 var start_search = function(_str) {
         console.log("start search", _str);
         var id = 1;
@@ -93,7 +132,7 @@ while(true)
             ID                          = L(L|D)*;
 
             QU = "\"";
-            EQU = "\\\"";
+            SQU = "'";
 
 
 
@@ -133,9 +172,11 @@ while(true)
             ID                          { if(addLexeme(str, YYLEXSTART, YYCURSOR, "ID")) return; reset(); break; }
             DELIM                       { reset(); break;  }
 
+            QU|SQU                      { id = 100000000; break;}
+
             [^]                         { if(unknownSymbol(str, YYLEXSTART, YYCURSOR)) return; reset(); break;  }
-        */}
-}
+        */ENDER}
+};
 
 var print_f = function () {
     var r_str = "";
@@ -153,24 +194,9 @@ var print_f = function () {
 
         if(arg !== undefined) {
             switch (macro) {
-                case "s": // v2.string or string
-                    // var v_1 = arg.to_string && arg.to_string();
-
-                    // r_str += (arg.to_string && arg.to_string()) || arg.toString();
-
-                    // var has_to_string = arg.to_string !== undefined;
-                    // var has_toString = arg.toString !== undefined;
-
+                case "s":
                     if(arg.to_string && !arg.toString) r_str += arg.to_string();
                     if(arg.toString && !arg.to_string) r_str += arg.toString();
-
-
-                    break;
-                case "T": // v2.type
-                case "M": // v2.model_type
-                case "A": // v2.address
-                case "P": // all printable
-                    r_str += v2.tools.print(arg);
                     break;
                 case "i":
                     r_str += (arg.to_number && arg.to_number()) || parseInt(arg);
@@ -178,12 +204,6 @@ var print_f = function () {
                 case "f":
                     r_str += (arg.to_number && arg.to_number()) || parseFloat(arg);
                     break;
-                case "b":
-                    r_str += arg.toString();
-                    break;
-                default:
-                    r_str += "%" + macro;
-                    break;
             }
         } else {
             r_str += "%" + macro;
@@ -228,5 +248,9 @@ start_search("TimeDiff");
 console.log("TEST ALL")
 start_search("[  ]  (  )  :  ,  .  %  >  >=  <  <=  ==  !=  AND  and  OR  or  NOT  not  LIKE  like  NLIKE  nlike  Address  Time  TimeDiff  ");
 
-console.log("TEST FAILS");
-start_search('  sdfasdfasdfsdf "fasdf');
\ No newline at end of file
+console.log("TEST STRING LITERAL");
+start_search('  "111\\\"11\\\"1" "222222" ');
+start_search("  '111\\\'11\\\'1' '222222' ");
+
+//console.log("TEST FAILS");
+//start_search('  sdfasdfasdfsdf "fasdf');
\ No newline at end of file
diff --git a/parse_source_lexeme.js b/parse_source_lexeme.js
index 8e48bc7..55e3183 100644
--- a/parse_source_lexeme.js
+++ b/parse_source_lexeme.js
@@ -13,6 +13,11 @@ exec("re2c -i lexer.l", function(err, stdout, stderr) {
 });
 
 var post_process_lexer = function (_string) {
+
+    var search_string = fs.readFileSync("search_string.js", "utf8");
+    // insert last case for string detect
+    _string = _string.replace(/\}\nENDER}/gm, "yy100000000: { " + search_string + " reset(); break; }}}");
+
     _string = _string.replace(/^.*(_r2c_var_.*;|unsigned int yyaccept = 0;)\n/gm, ""); // replace var yych;
     _string = _string.replace(/(yych = \*YYCURSOR);\n/gm, "\tcase 1:\n yych = str[YYCURSOR];\n"); // insert "case 1:" before;
     _string = _string.replace(/\*(.*?);/gm, "str[$1];");  // замена разыменовываний
diff --git a/search_string.js b/search_string.js
new file mode 100644
index 0000000..1f8545f
--- /dev/null
+++ b/search_string.js
@@ -0,0 +1,7 @@
+var info = searchString(str, yych, YYLEXSTART, YYCURSOR);
+if(info.success) {
+    YYCURSOR = info.pos;
+    addLexeme(str, YYLEXSTART, YYCURSOR, "STRING");
+} else {
+    notFoundCloseQuote(str, YYLEXSTART, YYCURSOR);
+}
\ No newline at end of file