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Add knot
authorAndy Spencer <andy753421@gmail.com>
Tue, 12 Jan 2010 18:27:49 +0000 (18:27 +0000)
committerAndy Spencer <andy753421@gmail.com>
Tue, 12 Jan 2010 18:27:49 +0000 (18:27 +0000)
Convert a textual description of a knot into a graphical description
using HTML tables.

12 files changed:
knot/.gitignore [new file with mode: 0644] patch | blob
knot/hitch.txt [new file with mode: 0644] patch | blob
knot/html.ct [new file with mode: 0644] patch | blob
knot/img/ld.png [new file with mode: 0644] patch | blob
knot/img/lr.png [new file with mode: 0644] patch | blob
knot/img/lu.png [new file with mode: 0644] patch | blob
knot/img/rd.png [new file with mode: 0644] patch | blob
knot/img/ru.png [new file with mode: 0644] patch | blob
knot/img/ud.png [new file with mode: 0644] patch | blob
knot/knot.c [new file with mode: 0644] patch | blob
knot/knot.h [new file with mode: 0644] patch | blob
knot/mkfile [new file with mode: 0644] patch | blob

diff --git a/knot/.gitignore b/knot/.gitignore
new file mode 100644 (file)
index 0000000..d201525
--- /dev/null
+++ b/knot/.gitignore
@@ -0,0 +1,3 @@
+html.c
+*.html
+knot
diff --git a/knot/hitch.txt b/knot/hitch.txt
new file mode 100644 (file)
index 0000000..a131f4b
--- /dev/null
+++ b/knot/hitch.txt
@@ -0,0 +1,8 @@
+ |      
+.---..--.
+'|. ||.-|-+
+ ||.-|-.|
+.||-||-||---
+'-|-'|'-'
+ ||'-' |
+ |'----'
diff --git a/knot/html.ct b/knot/html.ct
new file mode 100644 (file)
index 0000000..40fbe44
--- /dev/null
+++ b/knot/html.ct
@@ -0,0 +1,41 @@
+<% #include "knot.h" %>
+
+<% static void print_img(int ptrn) { %>
+       <% if (ptrn) { %>
+       <img src="img/<% if (ptrn & LEFT ) printf("l"); %>
+                     <% if (ptrn & RIGHT) printf("r"); %>
+                     <% if (ptrn & UP   ) printf("u"); %>
+                     <% if (ptrn & DOWN ) printf("d"); %>.png">
+       <% } %>
+<% } %>
+
+<% void print_index(tile_t **tiles) { %>
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
+  "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml" lang="en" xml:lang="en">
+       <title>Knot</title>
+       <meta http-equiv="Content-type" content="text/html;charset=UTF-8" />
+       <head>
+               <style type="text/css">
+                       *   { border:0; margin:0; padding:0; }
+                       table { border-collapse:separate; margin:auto; width:1800px;}
+                       td  { width:64px; height:64px; border-spacing:0px 0px;}
+                       img { position:absolute; }
+               </style>
+       </head>
+       <body>
+       <table cellpadding="0" cellspacing="0">
+               <% for (int row = 1; row < 10; row++) { %>
+               <tr>
+                       <% for (int col = 1; col < 30; col++) { %>
+                       <td>
+                       <% print_img(tiles[row][col].bot); %>
+                       <% print_img(tiles[row][col].top); %>
+                       </td>
+                       <% } %>
+               </tr>
+               <% } %>
+               </table>
+       </body>
+</html>
+<% } %>
diff --git a/knot/img/ld.png b/knot/img/ld.png
new file mode 100644 (file)
index 0000000..232d866
Binary files /dev/null and b/knot/img/ld.png differ
diff --git a/knot/img/lr.png b/knot/img/lr.png
new file mode 100644 (file)
index 0000000..256c562
Binary files /dev/null and b/knot/img/lr.png differ
diff --git a/knot/img/lu.png b/knot/img/lu.png
new file mode 100644 (file)
index 0000000..135be4e
Binary files /dev/null and b/knot/img/lu.png differ
diff --git a/knot/img/rd.png b/knot/img/rd.png
new file mode 100644 (file)
index 0000000..90f74ad
Binary files /dev/null and b/knot/img/rd.png differ
diff --git a/knot/img/ru.png b/knot/img/ru.png
new file mode 100644 (file)
index 0000000..7f567b0
Binary files /dev/null and b/knot/img/ru.png differ
diff --git a/knot/img/ud.png b/knot/img/ud.png
new file mode 100644 (file)
index 0000000..059dc95
Binary files /dev/null and b/knot/img/ud.png differ
diff --git a/knot/knot.c b/knot/knot.c
new file mode 100644 (file)
index 0000000..13954d1
--- /dev/null
+++ b/knot/knot.c
@@ -0,0 +1,85 @@
+#include <stdio.h>
+#include <stdlib.h>
+
+#include "knot.h"
+
+static void do_tile(tile_t **tiles, int row, int col)
+{
+       tile_t *t = &tiles[row][col];
+       tile_t *l = &tiles[row][col-1];
+       tile_t *r = &tiles[row][col+1];
+       tile_t *u = &tiles[row-1][col];
+       //tile_t *d = &tiles[row+1][col];
+
+       /* Fill in what we know */
+       switch (tiles[row][col].c) {
+       case '-':  t->top = LEFT | RIGHT; break;
+       case '|':  t->top = UP | DOWN;    break;
+       case '\'': t->top = UP;           break;
+       case '.':  t->top = DOWN;         break;
+       }
+
+       /* Follow bottoms */
+       if (t->c == '|' && (l->top | l->bot) & RIGHT)
+               t->bot = LEFT | RIGHT;
+       if (t->c == '-' && (u->top | u->bot) & DOWN)
+               t->bot = UP | DOWN;
+
+       /* Adds sides for ''s and .'s */
+       if (t->c == '.' || t->c == '\'') {
+               if ((l->top | l->bot) & RIGHT)
+                       t->top |= LEFT;
+               else
+                       t->top |= RIGHT;
+       }
+
+}
+
+static void print_ptrn(int ptrn)
+{
+       printf("%c", ptrn & LEFT  ? '<' : '-');
+       printf("%c", ptrn & RIGHT ? '>' : '-');
+       printf("%c", ptrn & UP    ? '^' : '-');
+       printf("%c", ptrn & DOWN  ? 'v' : '-');
+}
+
+int main()
+{
+       /* Init tiles */
+       tile_t *tiles[64];
+       for (int i = 0; i < 64; i++)
+               tiles[i] = calloc(512, sizeof(tile_t));
+
+       /* Read data */
+       char c;
+       int row = 1, col = 1;
+       while ((c = getchar()) != EOF) {
+               if (row > 63 || col > 511)
+                       exit(-1);
+               if (c == '\n') {
+                       row++;
+                       col = 1;
+               } else {
+                       tiles[row][col].c = c;
+                       col++;
+               }
+       }
+
+       /* Process */
+       for (row = 1; row < 63; row++)
+               for (col = 1; col < 511; col++)
+                       do_tile(tiles, row, col);
+
+       /* Output */
+       //for (row = 1; row < 63; row++) {
+       //      for (col = 1; col < 511; col++) {
+       //              print_ptrn(tiles[row][col].top);
+       //              print_ptrn(tiles[row][col].bot);
+       //              printf(" ");
+       //      }
+       //      printf("\n");
+       //}
+
+       /* HTML */
+       print_index(tiles);
+}
diff --git a/knot/knot.h b/knot/knot.h
new file mode 100644 (file)
index 0000000..0e77797
--- /dev/null
+++ b/knot/knot.h
@@ -0,0 +1,14 @@
+enum {
+       LEFT  = 1<<0,
+       RIGHT = 1<<1,
+       UP    = 1<<2,
+       DOWN  = 1<<3,
+};
+
+typedef struct {
+       char c;
+       int top;
+       int bot;
+} tile_t;
+
+void print_index(tile_t **tiles);
diff --git a/knot/mkfile b/knot/mkfile
new file mode 100644 (file)
index 0000000..f38e2c9
--- /dev/null
+++ b/knot/mkfile
@@ -0,0 +1,10 @@
+PROGS=knot
+CLEAN=html.c *.html
+
+default:V: hitch.html
+knot: knot.o html.o knot.h 
+
+%.html: $PROGS %.txt
+       ./$PROGS < $stem.txt > $stem.html
+
+<../mkcommon
C template system