fix: reserved keyword char

default/inc_cp437.glsl

@@ -295,7 +295,7 @@ const int hex_chars[] = int[16](
     0x46
 );
 
-bool char(vec2 pos, int code)
+bool chr(vec2 pos, int code)
 {
     if (pos.x < .0 || pos.y < .0 || pos.x >= 1. || pos.y >= 1.) {
         return false;
@@ -309,7 +309,7 @@ bool char(vec2 pos, int code)
 
 float char_at(vec2 uv, vec2 pos, int code)
 {
-    return char(uv - pos, code) ? 1. : 0.;
+    return chr(uv - pos, code) ? 1. : 0.;
 }
 
 float write_5(vec2 uv, vec2 pos, int str[5])

default/inc_fx.glsl

@@ -281,7 +281,7 @@ subroutine(fx_stage_sub) vec4 fx_9(vec2 vUV, sampler2D previous, sampler2D feedb
         + reframe(previous, uv2 + vec2(1., 1.) * inv_k * .125).xyz * .2
         + reframe(previous, uv2 + vec2(0., 1.) * inv_k * .125).xyz * .2
         + reframe(previous, uv2 + vec2(.5, .5) * inv_k * .125).xyz * .2;
-    c = char(mod(uv1 * k1, 1.), code) ? c : vec3(0.);
+    c = chr(mod(uv1 * k1, 1.), code) ? c : vec3(0.);
 
     return fx_master(c0, c, seed, m0);
 }

default/inc_src.glsl

@@ -201,7 +201,7 @@ subroutine(src_stage_sub) vec4 src_7(vec2 vUV, int seed, vec3 b1, vec2 f1, vec3
     ivec2 uv2i = ivec2(uv2);
     int code = ((charset_ctrl.y < 1. || (uv2i.x % 2 ^ uv2i.y % 2) > 0) ? 1 : 0) * (start_char + int((rand(uv2i) + char_delta) * char_span) % char_span);
     uv2 = mod(uv2, 1.);
-    float f = char(uv2, code) ? 1. : 0.;
+    float f = chr(uv2, code) ? 1. : 0.;
 
     return vec4(f);
 }