1 files changed, 138 insertions, 0 deletions
diff --git a/draw.c b/draw.c
new file mode 100644
index 0000000..55c840f
--- /dev/null
+++ b/draw.c
@@ -0,0 +1,138 @@
+#include <ctype.h>
+#include <stdio.h>
+#include <string.h>
+#include <stdarg.h>
+#include "sayeth.h"
+
+size_t START_Y_BOX = 0;
+size_t START_Y_CARET = 0;
+size_t START_Y_DATA = 0;
+const char *A_TAB = "    ";
+char wspace = ' ';
+char box_top_left = '\0';
+char box_top = '\0';
+char box_top_right = '\0';
+char box_side = '\0';
+char box_bottom_left = '\0';
+char box_bottom = '\0';
+char box_bottom_right = '\0';
+
+void box_draw_top(size_t y, size_t longest) {
+    repchar(wspace, y);
+    repchar(box_top_left, 1);
+    repchar(box_top, longest);
+    repchar(box_top_right, 1);
+}
+
+void box_draw_bottom(size_t y, size_t longest) {
+    repchar(wspace, y);
+    repchar(box_bottom_left, 1);
+    repchar(box_bottom, longest);
+    repchar(box_bottom_right, 1);
+}
+
+void box_draw_next_line(size_t y) {
+    repchar(wspace, y);
+    repchar(box_side, 1);
+}
+
+void box_draw_end_line(size_t longest, size_t len) {
+    repchar(wspace, longest - len);
+    repchar(box_side, 1);
+}
+
+int box_printf(const char *fmt, ...) {
+    int count;
+    va_list list;
+    va_start(list, fmt);
+    size_t len = 0;
+    char data[INPUT_BUFSIZ] = {0};
+    char output[INPUT_BUFSIZ] = {0};
+    count = vsnprintf(data, sizeof(data) - 1, fmt, list);
+
+    // convert tabs to spaces
+    for (size_t i = 0, n = 0; i < strlen(data) && n < sizeof(output); i++, n++) {
+        if (data[i] == '\t') {
+            strcat(&output[n], A_TAB);
+            n = n + strlen(A_TAB) - 1;
+            continue;
+        }
+        output[n] = data[i];
+    }
+
+    size_t longest = get_longest_line(output);
+
+    box_draw_top(START_Y_BOX, longest);
+    puts("");
+
+    for (size_t i = 0; i < strlen(output); i++) {
+        if (i == strlen(output) - 1) {
+            box_draw_end_line(longest, len);
+            continue;
+        }
+
+        if (len == 0) {
+            box_draw_next_line(START_Y_BOX);
+        }
+
+        if (output[i] == '\n') {
+            box_draw_end_line(longest, len);
+            putc('\n', stdout);
+            len = 0;
+            continue;
+        }
+
+        putc(output[i], stdout);
+
+        len++;
+    }
+    puts("");
+    box_draw_bottom(START_Y_BOX, longest);
+
+    va_end(list);
+    return count;
+}
+
+void caret_draw(char *data, size_t indent, size_t attached) {
+    if (!strlen(data))
+        return;
+
+    if (!attached)
+        repchar(wspace, START_Y_BOX);
+
+    for (size_t i = 0; i < strlen(data); i++) {
+        if (data[i] == '\\' && isalpha(data[i + 1])) {
+            i++;
+            switch (data[i]) {
+                case 'n':
+                    putc('\n', stdout);
+                    if (i == strlen(data) - 1)
+                        continue;
+                    repchar(wspace, indent);
+                    continue;
+                default:
+                    continue;
+            }
+        }
+        putc(data[i], stdout);
+    }
+}
+
+
+void data_draw(char *data, size_t indent) {
+    size_t len = 0;
+    for (size_t i = 0; i < strlen(data); i++) {
+        if (len == 0) {
+            repchar(wspace, indent);
+        }
+
+        if (data[i] == '\n') {
+            putc('\n', stdout);
+            len = 0;
+            continue;
+        }
+
+        putc(data[i], stdout);
+        len++;
+    }
+}