feat: add built-in font test page

src/tui/fonts.zig

@@ -192,3 +192,35 @@ pub const font8x8: [128][8]u8 = [128][8]u8{
     [8]u8{ 110, 59, 0, 0, 0, 0, 0, 0 },
     [8]u8{ 0, 0, 0, 0, 0, 0, 0, 0 },
 };
+
+pub const font_test_text: []const u8 =
+    \\
+    \\notcurses (3.0.9) glyph rendering test suite:
+    \\
+    \\  ▘▝▀▖▌▞▛▗▚▐▜▄▙▟█⎧ 🬀🬁🬂🬃🬄🬅🬆🬇🬈🬊🬋🬌🬍🬎🬏🬐🬑🬒🬓▌🬔🬕🬖🬗🬘🬙🬚🬛🬜🬝⎫♠♥🯰🯱🯲🯳🯴🯵🯶🯷🯸🯹⅗⅘⅙⅚⅛⎧▕▏⎫┌╥─╥─╥┐🭩⎛⎞
+    \\ ╲╿╱ ◨◧ ◪◩ ◖◗ ⫷⫸ ⎩🬟🬠🬡🬢🬣🬤🬥🬦🬧▐🬨🬩🬪🬫🬬🬭🬮🬯🬰🬱🬲🬳🬴🬵🬶🬷🬸🬹🬺🬻█⎭♦♣¼½¾⅐⅑⅒⅓⅔⅕⅖⅜⅝⅞⅟↉⎪🮇▎⎪├╜╓╫╖╙┤🭫⎜⎟
+    \\ ╾╳╼ ◲◱ ◶◵ 🮣🮠 🮤🮥◜◝ ◿◺ 🮞🮟 ◢◣ ┌┐─ ┏┓━ ╭╮─ ╔╗═ 🭽🭾▁♟♜♞⩘▵△▹▷▿▽◃◁⭡⭣⭠⭢⭧⭩⭦⭨⎪🮈▍⎪├─╨╫╨─┤┇⎜⎟
+    \\ ╱╽╲ ◳◰ ◷◴ 🮡🮢 🮦🮧◟◞ ◹◸ 🮝🮜 ◥◤ └┘│ ┗┛┃ ╰╯│ ╚╝║ 🭼🭿🭵♝♛♚⩗▴⏶⯅▲▸⏵⯈▶▾⏷⯆▼◂⏴⯇◀⎪▐▌⎪╞═╤╬╤═╡┋⎜⎟
+    \\ ⎡⠀⠁⠈⠉⠂⠃⠊⠋⠐⠑⠘⠙⠒⠓⠚⠛⠄⠅⠌⠍⠆⠇⠎⠏⠔⠕⠜⠝⠖⠗⠞⠟⠠⠡⠨⠩⠢⠣⠪⠫⠰⠱⠸⠹⠲⠳⠺⠻⠤⠥⠬⠭⠦⠧⠮⠯⠴⠵⠼⠽⠶⠷⠾⠿⎤⎨🮉▋⎬╞╕╘╬╛╒╡┊⎜⎟
+    \\ ⎢⡀⡁⡈⡉⡂⡃⡊⡋⡐⡑⡘⡙⡒⡓⡚⡛⡄⡅⡌⡍⡆⡇⡎⡏⡔⡕⡜⡝⡖⡗⡞⡟⡠⡡⡨⡩⡢⡣⡪⡫⡰⡱⡸⡹⡲⡳⡺⡻⡤⡥⡬⡭⡦⡧⡮⡯⡴⡵⡼⡽⡶⡷⡾⡿⎥⎪🮊▊⎪└┴─╨─┴┘╏⎝⎠
+    \\ ⎢⢀⢁⢈⢉⢂⢃⢊⢋⢐⢑⢘⢙⢒⢓⢚⢛⢄⢅⢌⢍⢆⢇⢎⢏⢔⢕⢜⢝⢖⢗⢞⢟⢠⢡⢨⢩⢢⢣⢪⢫⢰⢱⢸⢹⢲⢳⢺⢻⢤⢥⢬⢭⢦⢧⢮⢯⢴⢵⢼⢽⢶⢷⢾⢿⎥⎪🮋▉⎪╭──╮⟬⟭╔╗≶≷
+    \\ ⎣⣀⣁⣈⣉⣂⣃⣊⣋⣐⣑⣘⣙⣒⣓⣚⣛⣄⣅⣌⣍⣆⣇⣎⣏⣔⣕⣜⣝⣖⣗⣞⣟⣠⣡⣨⣩⣢⣣⣪⣫⣰⣱⣸⣹⣲⣳⣺⣻⣤⣥⣬⣭⣦⣧⣮⣯⣴⣵⣼⣽⣶⣷⣾⣿⎦⎪██⎪│╭╮│╔═╝║⊆⊇
+    \\  ▔🭶🭷🭸🭹🭺🭻▁ 🭁🭌 🭂🭍 🭃🭎 🭄🭏 🭅🭐 🭆🭑 🭇🬼 🭈🬽 🭉🬾 🭊🬿 🭋🭀 ₀₁₂₃₄₅₆₇₈₉ ⎛ ▁▂▃▄▅▆▇█🭫⎞⎪🭨🭪⎪╰╯││║╔═╝⊴⊵
+    \\  ▏🭰🭱🭲🭳🭴🭵▕ 🭒🭝 🭓🭞 🭔🭟 🭕🭠 🭖🭡 🭧🭜 🭢🭗 🭣🭘 🭤🭙 🭥🭚 🭦🭛 ⁰¹²³⁴⁵⁶⁷⁸⁹ ⎝ ▔🮂🮃▀🮄🮅🮆█🭩⎠⎩🭪🭨⎭⧒⧑╰╯╚╝❨❩⟃⟄
+    \\ 👾🏴🤘🚬🌍🌎🌏🥆💣🗡🔫⚗️⚛️☢️☣️🌿🎱🏧💉💊🕴️📡🤻🦑🇦🇶👩‍🔬🪤🚱✊🏿🔬🧬🏴‍☠️🤽🏼‍♀️
+    \\
+    \\
+    \\Unicode mode 2027 tests:
+    \\
+    \\xxxxxxxxxx
+    \\xxxx🧑‍🌾xxxx
+    \\xxxxxxxxxx
+    \\
+    \\xxxxxxxxxxxxxxxxxxxxxxxx
+    \\xx🧑‍🌾🧑‍🌾🧑‍🌾🧑‍🌾🧑‍🌾🧑‍🌾🧑‍🌾🧑‍🌾🧑‍🌾🧑‍🌾xx
+    \\xx🧑‍🌾🧑‍🌾🧑‍🌾🧑‍🌾🧑‍🌾🧑‍🌾🧑‍🌾🧑‍🌾🧑‍🌾🧑‍🌾xx
+    \\xxxxxxxxxxxxxxxxxxxxxxxx
+    \\
+    \\🙂‍↔
+    \\
+;

src/tui/mainview.zig

@@ -374,6 +374,14 @@ const cmds = struct {
     }
     pub const open_help_meta = .{ .description = "Open help" };
 
+    pub fn open_font_test_text(self: *Self, _: Ctx) Result {
+        tui.reset_drag_context();
+        try self.create_editor();
+        try command.executeName("open_scratch_buffer", command.fmt(.{ "font test", @import("fonts.zig").font_test_text, "text" }));
+        tui.need_render();
+    }
+    pub const open_font_test_text_meta = .{ .description = "Open font glyph test text" };
+
     pub fn open_config(_: *Self, _: Ctx) Result {
         const file_name = try root.get_config_file_name(@import("config"));
         try tp.self_pid().send(.{ "cmd", "navigate", .{ .file = file_name[0 .. file_name.len - 5] } });