From 8a1f8624ee4a859477809d6a554ad290dae15e63 Mon Sep 17 00:00:00 2001
From: Curtis McEnroe <june@causal.agency>
Date: Wed, 14 Aug 2019 00:05:30 -0400
Subject: Allow :<=>? in CSI params

---
 term.c | 36 ++++++++++++++++++++++--------------
 term.h |  2 +-
 2 files changed, 23 insertions(+), 15 deletions(-)

diff --git a/term.c b/term.c
index 09fe4fa..2a8960a 100644
--- a/term.c
+++ b/term.c
@@ -108,19 +108,27 @@ ACTION(csi) {
 }
 
 static void csiParam(struct Term *t, wchar_t ch) {
-	if (ch == L'?') {
-		t->param.q = true;
-	} else if (ch == L';' && t->param.n < ParamCap) {
-		t->param.n++;
-		t->param.i++;
-	} else if (ch >= L'0' && ch <= L'9') {
-		t->param.s[t->param.i] *= 10;
-		t->param.s[t->param.i] += ch - L'0';
-		if (!t->param.n) t->param.n++;
-	} else {
-		// FIXME: Allow other characters in CSI params.
-		unhandled("CSI %lc", ch);
-		return;
+	switch (ch) {
+		case L'0': case L'1': case L'2': case L'3': case L'4':
+		case L'5': case L'6': case L'7': case L'8': case L'9': {
+			t->param.s[t->param.i] *= 10;
+			t->param.s[t->param.i] += ch - L'0';
+			if (!t->param.n) t->param.n++;
+		}
+		break; case L':': // ignore
+		break; case L';': {
+			if (t->param.n == ParamCap) break;
+			t->param.n++;
+			t->param.i++;
+		}
+		break; case L'<': t->param.lt = true;
+		break; case L'=': t->param.eq = true;
+		break; case L'>': t->param.gt = true;
+		break; case L'?': t->param.qm = true;
+		break; default: {
+			unhandled("CSI %lc", ch);
+			return;
+		}
 	}
 	t->state = CSI;
 }
@@ -227,7 +235,7 @@ enum {
 static void mode(struct Term *t, wchar_t ch) {
 	enum Mode mode = 0;
 	for (uint i = 0; i < t->param.n; ++i) {
-		if (t->param.q) {
+		if (t->param.qm) {
 			switch (t->param.s[i]) {
 				break; case 1: // DECCKM
 				break; case DECAWM: mode |= Wrap;
diff --git a/term.h b/term.h
index b4a96af..19ebb95 100644
--- a/term.h
+++ b/term.h
@@ -58,7 +58,7 @@ struct Term {
 	uint rows, cols;
 	uint state;
 	struct {
-		bool q;
+		bool lt, eq, gt, qm;
 		uint s[ParamCap];
 		uint n, i;
 	} param;
-- 
cgit 1.4.1