From: Ben Harris <bjh21@bjh21.me.uk>
Date: Mon, 31 Jul 2017 22:22:48 +0000 (+0100)
Subject: Lay complement out more in keeping with Unicode values.
X-Git-Tag: bedstead-002.000~104
X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~bjharris/git?a=commitdiff_plain;h=0153fbc05916bf3565faddd5978dbd299a3ca66b;p=bedstead.git

Lay complement out more in keeping with Unicode values.

Now each column represents one column in the Unicode code charts, with
entirely empty columns suppressed.  Unencoded characters are packed in
at the end.
---

diff --git a/bedstead.c b/bedstead.c
index 698a49c..25c3d4c 100644
--- a/bedstead.c
+++ b/bedstead.c
@@ -2139,8 +2139,8 @@ byunicode(const void *va, const void *vb)
 static void
 glyph_complement()
 {
-	int i;
-	int const nrow = 20, ncol=12;
+	int const nrow = 16, ncol=12;
+	int i, unicol = 32/nrow, col = -1, row = 0;
 	int const nglyphs = sizeof(glyphs) / sizeof(glyphs[0]);
 	int npages = 0;
 	struct glyph const *sorted[nglyphs], *g;
@@ -2174,14 +2174,25 @@ glyph_complement()
 	printf("{ pop << /SubsetFonts false >> setdistillerparams } if\n");
 	printf("%%%%EndProlog\n");
 	for (i = 0; i < nglyphs; i++) {
-		if (i % (nrow*ncol) == 0) {
+		g = sorted[i];
+		if (g->unicode / nrow != unicol ||
+		    (g->unicode == -1 && row == nrow)) {
+			if (++col == ncol) {
+				printf("grestore showpage\n");
+				col = -1;
+			}
+			unicol = g->unicode / nrow;
+			row = 0;
+		}
+		if (col == -1) {
 			++npages;
 			printf("%%%%Page: %d %d\n", npages, npages);
+			printf("gsave 20 800 translate\n");
+			col = 0;
 		}
-		g = sorted[i];
 		printf("gsave %d %d translate ",
-		       20 + (((i%(nrow*ncol)/nrow) * 40)),
-		       800 - ((i%nrow) * 40));
+		       (col * 40),
+		       -((g->unicode == -1 ? row++ : g->unicode%nrow) * 40));
 		if (g->unicode != -1)
 			printf("(U+%04X)", g->unicode);
 		else
@@ -2191,8 +2202,6 @@ glyph_complement()
 		else
 			printf("/uni%04X ", g->unicode);
 		printf("exemplify grestore\n");
-		if (i % (nrow*ncol) == (nrow*ncol)-1)
-			       printf("showpage\n");
 	}
 	printf("showpage\n");
 	printf("%%%%EOF\n");