add new parseline

2 files changed, 81 insertions, 1 deletions

diff --git a/src/lexer/parseline.cc b/src/lexer/parseline.cc
new file mode 100644
index 0000000..064f876
--- /dev/null
+++ b/src/lexer/parseline.cc
@@ -0,0 +1,80 @@
+#include "lexer/parseline.h"
+
+#include <vector>
+
+#include "lexer/enum_type.h"
+#include "util/string.h"
+
+using namespace std;
+
+namespace ov4
+{
+
+char **parseline(const std::string &s)
+{
+    guard_type guard = GUARD_OFF;
+    vector<string> v;
+    size_t len = s.size();
+    string prev_str = "";
+    char c;
+
+    for (size_t i = 0; i < len; i++)
+    {
+
+        c = s[i];
+        if (c == ' ' && guard == GUARD_OFF) continue;
+        
+        if (c == '\'' || c == '\"')
+        {
+
+            // turn on GUARD
+            if (guard == GUARD_OFF)
+            {
+                guard = (c == '\'') ? GUARD_STRONG : GUARD_WEAK;
+                if (i+1 == len)
+                {
+                    v.push_back(prev_str);
+                    prev_str = "";
+                }
+                continue;
+            }
+            // turn off
+            else if (guard == GUARD_STRONG && c == '\'')
+            {
+                guard = GUARD_OFF;
+                if (i+1 == len)
+                {
+                    v.push_back(prev_str);
+                    prev_str = "";
+                }
+                continue;
+            }
+            // turn off
+            else if (guard == GUARD_WEAK && c == '\"')
+            {
+                guard = GUARD_OFF;
+                if (i+1 == len)
+                {
+                    v.push_back(prev_str);
+                    prev_str = "";
+                }
+                continue;
+            } 
+            // if this (single/double) quotation mark is guarded
+            // it should be saved
+        }
+
+        prev_str += c;
+
+        if ((i+1 >= len) || (s[i+1] == ' ' && guard == GUARD_OFF))
+        {
+            v.push_back(prev_str);
+            prev_str = "";
+            continue;
+        }
+    }
+
+    return string2argv_alloc(v);
+}
+
+}
diff --git a/src/lexer/token.cc b/src/lexer/token.cc
index b9b8242..ec69090 100644
--- a/src/lexer/token.cc
+++ b/src/lexer/token.cc
@@ -12,7 +12,7 @@
 
 using namespace std; // remove this
 
-constexpr bool TOKEN_DEBUG = true;
+constexpr bool TOKEN_DEBUG = false;
 
 namespace ov4
 {