X-Git-Url: https://gitweb.ps.run/iftint/blobdiff_plain/7915eed596265bb03d9fc01eec6dd39015b01188..4889cf922e51c34f714941498d25588ceb258e67:/main2.c

diff --git a/main2.c b/main2.c
index 96aba10..86cc7b7 100644
--- a/main2.c
+++ b/main2.c
@@ -78,6 +78,16 @@ void vt100CursorHome() { vt100Escape("[H"); }
 void vt100CursorPos(int v, int h) { vt100Escape("[%d;%dH", v, h); }
 void vt100SaveCursor() { vt100Escape("7"); }
 void vt100RestoreCursor() { vt100Escape("8"); }
+// void vt100GetCursor(int * v, int * h) {
+//     *v = *h = 0;
+//     printf("\033[6n");
+//     getch(); getch();
+//     int c;
+//     while ((c = getch()) != ';')
+//         *v = (10*(*v)+(c-'0'));
+//     while ((c = getch()) != 'R')
+//         *h = (10*(*h)+(c-'0'));
+// }
 void vt100GetScreenSize(int * v, int * h) {
 #ifdef _WIN32
     CONSOLE_SCREEN_BUFFER_INFO csbi;
@@ -91,6 +101,8 @@ void vt100GetScreenSize(int * v, int * h) {
     *v = w.ws_col;
 #endif
 }
+void vt100EnableAlternateBuffer() { vt100Escape("[?1049h"); }
+void vt100DisableAlternateBuffer() { vt100Escape("[?1049l"); }
 
 
 // JSON
@@ -101,6 +113,7 @@ typedef enum {
     JSONNodeKind_Str,
     JSONNodeKind_Obj,
     JSONNodeKind_Arr,
+    JSONNodeKind_COUNT
 } JSONNodeKind;
 
 struct JSONNode;
@@ -189,22 +202,22 @@ Indent(int indent) {
 }
 
 void
-JSONNodePrint(JSONNode * node) {
+JSONNodePrint(JSONNode * node, JSONNode * currNode) {
     if (node == NULL)
         return;
     
     static int indent;
     if (node->parent == NULL)
         indent = 0;
-    
+
     switch (node->kind) {
     case JSONNodeKind_Nul: {
         printf("null");
         break;
     }
     case JSONNodeKind_Int: {
-        int i = (int)node->data;
-        printf("%d", i);
+        char * str = (char *)node->data;
+        printf("%s", (str == NULL || strlen(str) == 0) ? "0" : str);
         break;
     }
     case JSONNodeKind_Str: {
@@ -217,11 +230,12 @@ JSONNodePrint(JSONNode * node) {
         JSONNode * ptr = node->children;
         indent++;
         while (ptr != NULL) {
-            char * key = (char *)ptr->data;
+            JSONNode * key = ptr;
             JSONNode * value = ptr->next;
             Indent(indent);
-            printf("\"%s\": ", key);
-            JSONNodePrint(value);
+            JSONNodePrint(key, currNode);
+            printf(": ");
+            JSONNodePrint(value, currNode);
             if (ptr->next != NULL)
                 ptr = ptr->next->next;
             else
@@ -238,7 +252,7 @@ JSONNodePrint(JSONNode * node) {
         JSONNode * ptr = node->children;
         while (ptr != NULL) {
             JSONNode * value = ptr;
-            JSONNodePrint(value);
+            JSONNodePrint(value, currNode);
             ptr = ptr->next;
             printf("%s", (ptr == NULL ? "" : ", "));
         }
@@ -246,28 +260,27 @@ JSONNodePrint(JSONNode * node) {
         break;
     }
     }
+
+    if (currNode == node) {
+        vt100SaveCursor();
+    }
 }
 
 
 // Input
 
 JSONNode * g_DrawNode = NULL;
-const char * g_DrawStr = "";
+JSONNode * g_CurrNode = NULL;
 
 void
 Draw(void) {
     vt100ClearScreen();
     vt100CursorHome();
     
-    if (g_DrawNode != NULL)
-        JSONNodePrint(g_DrawNode);
-
-    int v, h;
-    vt100GetScreenSize(&v, &h);
-    vt100CursorPos(v, 0);
-    printf("> %s", g_DrawStr);
-
-    vt100CursorPos(v, strlen(g_DrawStr) + 3);
+    if (g_DrawNode != NULL) {
+        JSONNodePrint(g_DrawNode, g_CurrNode);
+        vt100RestoreCursor();
+    }
 }
 
 int
@@ -284,100 +297,85 @@ PeekChar() {
     return c;
 }
 
-void
-GetInt(JSONNode * node) {
-    char intStr[16] = "";
-    int intStrLen = 0;
-    
-    size_t * i = &node->data;
-    
-    int c;
-    g_DrawStr = intStr;
-    while ((c = GetChar()), (c != '\r') && (c != '\n')) {
-        if ((c == 8 || c == 127) && intStrLen > 0) {
-            intStrLen--;
-            intStr[intStrLen] = '\0';
-            *i /= 10;
-        }
-        else if (intStrLen < 16 - 1 && (c >= '0' && c <= '9')) {
-            intStr[intStrLen++] = c;
-            intStr[intStrLen] = '\0';
-            *i *= 10;
-            *i += c - '0';
-        }
-    }
-    g_DrawStr = "";
-}
+typedef bool(*CharPredicateFunc)(char, int);
+
+bool predStr(char c, int i) { return c >= 'a' && c <= 'z'; }
+bool predInt(char c, int i) { return c >= '0' && c <= '9'; }
 
 void
-GetStr(JSONNode * node) {
+GetStr(JSONNode * node, CharPredicateFunc charPredicate) {
     node->data = (size_t)NEWARR(char, 16);
     int strLen = 0;
 
     char * str = (char *)node->data;
     
     int c;
-    g_DrawStr = str;
     while ((c = GetChar()), (c != '\r') && (c != '\n')) {
         if ((c == 8 || c == 127) && strLen > 0) {
             strLen--;
             str[strLen] = '\0';
         }
-        else if (strLen < 16 - 1) {
-            str[strLen++] = c;
+        else if (strLen < 16 - 1 && charPredicate(c, strLen)) {
+            str[strLen] = c;
+            strLen++;
             str[strLen] = '\0';
         }
     }
-    g_DrawStr = "";
 }
 
 void
 GetNode(JSONNode * parent, JSONNode * node) {
     int c = GetChar();
 
-    JSONNode * result = node;
+    g_CurrNode = node;
 
     if (parent == NULL)
-        g_DrawNode = result;
+        g_DrawNode = node;
 
-    if (parent != NULL && result != NULL)
-        JSONNodePush(parent, result);
+    if (parent != NULL && node != NULL)
+        JSONNodePush(parent, node);
 
     switch (c) {
     case 'i': {
-        result->kind = JSONNodeKind_Int;
-	GetInt(result);
+        node->kind = JSONNodeKind_Int;
+        GetStr(node, predInt);
         break;
     }
     case 's': {
-        result->kind = JSONNodeKind_Str;
-	GetStr(result);
+        node->kind = JSONNodeKind_Str;
+        GetStr(node, predStr);
         break;
     }
     case 'o': {
-        result->kind = JSONNodeKind_Obj;
+        node->kind = JSONNodeKind_Obj;
         while ((c = PeekChar()), (c != '\r') && (c != '\n')) {
-	    JSONNode * newNode;
-	    
-	    newNode = JSONNodeNewStr("");
-            JSONNodePush(result, newNode);
-	    GetStr(newNode);
-
-	    newNode = JSONNodeNewNul();
-            JSONNodePush(result, newNode);
-	    GetNode(result, newNode);
+            JSONNode * newNode;
+            
+            newNode = JSONNodeNewStr("");
+            g_CurrNode = newNode;
+            JSONNodePush(node, newNode);
+            GetStr(newNode, predStr);
+
+            newNode = JSONNodeNewNul();
+            JSONNodePush(node, newNode);
+            GetNode(node, newNode);
         }
-        GetChar();
+	    g_CurrNode = node;
+        getch();
         break;
     }
     case 'a': {
-        result->kind = JSONNodeKind_Arr;
+        node->kind = JSONNodeKind_Arr;
         while ((c = PeekChar()), (c != '\r') && (c != '\n')) {
-	    JSONNode * newNode = JSONNodeNewNul();
-            JSONNodePush(result, newNode);
-	    GetNode(result, newNode);
+            JSONNode * newNode;
+            
+            newNode = JSONNodeNewNul();
+            //g_CurrNode = newNode;
+            JSONNodePush(node, newNode);
+            GetNode(node, newNode);
         }
-        GetChar();
+	    g_CurrNode = node;
+        getch();
         break;
     }
     /*
@@ -389,8 +387,8 @@ GetNode(JSONNode * parent, JSONNode * node) {
         break;
     */
     case 't':
-        result->kind = JSONNodeKind_Int;
-        result->data = (size_t)GetChar();
+        node->kind = JSONNodeKind_Int;
+        node->data = (size_t)GetChar();
         break;
     }
 }
@@ -399,6 +397,8 @@ GetNode(JSONNode * parent, JSONNode * node) {
 
 
 int main() {
+    vt100EnableAlternateBuffer();
+
     Draw();
 
     JSONNode * n = JSONNodeNewNul();
@@ -407,10 +407,12 @@ int main() {
 
     vt100ClearScreen();
     vt100CursorHome();
-    JSONNodePrint(n);
+    JSONNodePrint(n, NULL);
     printf("\n");
 
     // JSONFree(n);
+    
+    vt100DisableAlternateBuffer();
 
     return 0;
 }