#define NEWARR(TYPE, NUM) ((TYPE *)calloc(NUM, sizeof(TYPE)))
-// getch()
+// getch
#ifdef _WIN32
+#include <windows.h>
#include <conio.h>
#else
+#include <sys/ioctl.h>
#include <termios.h>
#include <unistd.h>
#include <stdio.h>
int ch;
tcgetattr( STDIN_FILENO, &oldattr );
newattr = oldattr;
- newattr.c_lflag &= ~( ICANON | ECHO );
- tcsetattr( STDIN_FILENO, TCSANOW, &newattr );
- ch = getchar();
- tcsetattr( STDIN_FILENO, TCSANOW, &oldattr );
- return ch;
-}
-
-/* reads from keypress, echoes */
-int getche(void)
-{
- struct termios oldattr, newattr;
- int ch;
- tcgetattr( STDIN_FILENO, &oldattr );
- newattr = oldattr;
- newattr.c_lflag &= ~( ICANON );
+ newattr.c_lflag &= ~( ICANON | ECHO ); // no ECHO for echo(?)
tcsetattr( STDIN_FILENO, TCSANOW, &newattr );
ch = getchar();
tcsetattr( STDIN_FILENO, TCSANOW, &oldattr );
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;
+ GetConsoleScreenBufferInfo(GetStdHandle(STD_OUTPUT_HANDLE), &csbi);
+ *h = csbi.srWindow.Right - csbi.srWindow.Left + 1;
+ *v = csbi.srWindow.Bottom - csbi.srWindow.Top + 1;
+#else
+ struct winsize w;
+ ioctl(STDOUT_FILENO, TIOCGWINSZ, &w);
+ *h = w.ws_row;
+ *v = w.ws_col;
+#endif
+}
+void vt100EnableAlternateBuffer() { vt100Escape("[?1049h"); }
+void vt100DisableAlternateBuffer() { vt100Escape("[?1049l"); }
// JSON
JSONNodeKind_Str,
JSONNodeKind_Obj,
JSONNodeKind_Arr,
+ JSONNodeKind_COUNT
} JSONNodeKind;
struct JSONNode;
printf(" ");
}
+static int currV = 0;
+static int currH = 0;
+
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");
JSONNode * value = ptr->next;
Indent(indent);
printf("\"%s\": ", key);
- JSONNodePrint(value);
+ JSONNodePrint(value, currNode);
if (ptr->next != NULL)
ptr = ptr->next->next;
else
JSONNode * ptr = node->children;
while (ptr != NULL) {
JSONNode * value = ptr;
- JSONNodePrint(value);
+ JSONNodePrint(value, currNode);
ptr = ptr->next;
printf("%s", (ptr == NULL ? "" : ", "));
}
break;
}
}
+
+ if (currNode == node) {
+ int currOffsets[JSONNodeKind_COUNT];
+ currOffsets[JSONNodeKind_Nul] = 0;
+ currOffsets[JSONNodeKind_Int] = 0;
+ currOffsets[JSONNodeKind_Str] = 1;
+ currOffsets[JSONNodeKind_Obj] = 1;
+ currOffsets[JSONNodeKind_Arr] = 2;
+ vt100GetCursor(&currV, &currH);
+ currH -= currOffsets[node->kind];
+ }
}
// Input
-JSONNode * g_Node;
+JSONNode * g_DrawNode = NULL;
+JSONNode * g_CurrNode = NULL;
void
-Draw(JSONNode * node, const char * str) {
+Draw(void) {
vt100ClearScreen();
vt100CursorHome();
- printf("> %s\n\n", str);
-
- if (node != NULL)
- JSONNodePrint(node);
+ if (g_DrawNode != NULL) {
+ JSONNodePrint(g_DrawNode, g_CurrNode);
+ vt100CursorPos(currV, currH);
+ }
+}
- vt100CursorPos(0, strlen(str) + 3);
+int
+GetChar() {
+ Draw();
+ int c = getch();
+ return c;
}
int
-GetInt() {
- static char intStr[16];
+PeekChar() {
+ Draw();
+ int c = peekch();
+ return c;
+}
+
+void
+GetInt(JSONNode * node) {
+ char intStr[16] = "";
int intStrLen = 0;
- int result = 0;
+
+ size_t * i = &node->data;
+
int c;
- while ((c = getch()), (c != '\r') && (c != '\n')) {
+ while ((c = GetChar()), (c != '\r') && (c != '\n')) {
if ((c == 8 || c == 127) && intStrLen > 0) {
intStrLen--;
intStr[intStrLen] = '\0';
- result /= 10;
- Draw(g_Node, intStr);
+ *i /= 10;
}
else if (intStrLen < 16 - 1 && (c >= '0' && c <= '9')) {
intStr[intStrLen++] = c;
intStr[intStrLen] = '\0';
- result *= 10;
- result += c - '0';
- Draw(g_Node, intStr);
+ *i *= 10;
+ *i += c - '0';
}
}
- return result;
}
-char *
-GetStr() {
- char * str = NEWARR(char, 16);
+void
+GetStr(JSONNode * node) {
+ node->data = (size_t)NEWARR(char, 16);
int strLen = 0;
+
+ char * str = (char *)node->data;
+
int c;
- while ((c = getch()), (c != '\r') && (c != '\n')) {
+ while ((c = GetChar()), (c != '\r') && (c != '\n')) {
if ((c == 8 || c == 127) && strLen > 0) {
strLen--;
str[strLen] = '\0';
- Draw(g_Node, str);
}
else if (strLen < 16 - 1) {
- str[strLen++] = c;
+ str[strLen] = c;
+ strLen++;
str[strLen] = '\0';
- Draw(g_Node, str);
}
}
- return str;
}
-JSONNode *
-GetNode(JSONNode * parent) {
- int c = getch();
+void
+GetNode(JSONNode * parent, JSONNode * node) {
+ int c = GetChar();
+
+ JSONNode * result = node;
+ g_CurrNode = node;
- JSONNode * result = JSONNodeNewNul();
-
if (parent == NULL)
- g_Node = result;
+ g_DrawNode = result;
if (parent != NULL && result != NULL)
JSONNodePush(parent, result);
switch (c) {
case 'i': {
result->kind = JSONNodeKind_Int;
- Draw(g_Node, "");
- result->data = (size_t)GetInt();
- Draw(g_Node, "");
+ GetInt(result);
break;
}
case 's': {
result->kind = JSONNodeKind_Str;
- Draw(g_Node, "");
- result->data = (size_t)GetStr();
- Draw(g_Node, "");
+ GetStr(result);
break;
}
case 'o': {
result->kind = JSONNodeKind_Obj;
- Draw(g_Node, "");
- while ((c = peekch()), (c != '\r') && (c != '\n')) {
- Draw(g_Node, "");
-
- JSONNodePush(result, JSONNodeNewStr(GetStr()));
- Draw(g_Node, "");
-
- JSONNodePush(result, GetNode(result));
- Draw(g_Node, "");
+ while ((c = PeekChar()), (c != '\r') && (c != '\n')) {
+ JSONNode * newNode;
+
+ newNode = JSONNodeNewStr("");
+ g_CurrNode = newNode;
+ JSONNodePush(result, newNode);
+ GetStr(newNode);
+
+ newNode = JSONNodeNewNul();
+ JSONNodePush(result, newNode);
+ GetNode(result, newNode);
}
- getch();
+ g_CurrNode = result;
+ GetChar();
break;
}
case 'a': {
result->kind = JSONNodeKind_Arr;
- Draw(g_Node, "");
- while ((c = peekch()), (c != '\r') && (c != '\n')) {
- Draw(g_Node, "");
-
- JSONNodePush(result, GetNode(result));
- Draw(g_Node, "");
+ while ((c = PeekChar()), (c != '\r') && (c != '\n')) {
+ JSONNode * newNode = JSONNodeNewNul();
+ g_CurrNode = newNode;
+ JSONNodePush(result, newNode);
+ GetNode(result, newNode);
}
- getch();
+ g_CurrNode = result;
+ GetChar();
break;
}
+ /*
case 8:
case 127:
JSONNodePop(parent);
- Draw(g_Node, "");
- result = GetNode(parent);
+ JSONNode * newNode = JSONNodeNewNul();
+ GetNode(parent, newNode);
break;
+ */
case 't':
result->kind = JSONNodeKind_Int;
- result->data = (size_t)getch();
+ result->data = (size_t)GetChar();
break;
}
-
- return result;
}
-JSONNode *
-TestNode() {
- JSONNode * n = JSONNodeNewObj();
- JSONNode * k1 = JSONNodeNewStr("key 1");
- JSONNode * v1 = JSONNodeNewObj();
- JSONNode * k11 = JSONNodeNewStr("key 11");
- JSONNode * v11 = JSONNodeNewStr("val 11");
- JSONNode * k12 = JSONNodeNewStr("key 12");
- JSONNode * v12 = JSONNodeNewStr("val 12");
- JSONNode * k2 = JSONNodeNewStr("key 2");
- JSONNode * v2 = JSONNodeNewStr("val 2");
-
- JSONNodePush(n, k1);
- JSONNodePush(n, v1);
- JSONNodePush(n, k2);
- JSONNodePush(n, v2);
-
- JSONNodePush(v1, k11);
- JSONNodePush(v1, v11);
- JSONNodePush(v1, k12);
- JSONNodePush(v1, v12);
-
- return n;
-}
+
+
int main() {
- Draw(NULL, "");
+ vt100EnableAlternateBuffer();
+
+ Draw();
- JSONNode * n = GetNode(NULL);
+ JSONNode * n = JSONNodeNewNul();
+ GetNode(NULL, n);
//JSONNode * n = TestNode();
vt100ClearScreen();
vt100CursorHome();
- JSONNodePrint(n);
+ JSONNodePrint(n, NULL);
printf("\n");
// JSONFree(n);
+
+ vt100DisableAlternateBuffer();
return 0;
}
projects / iftint / blobdiff