diff options
Diffstat (limited to 'examples')
| -rw-r--r-- | examples/how_do_i.nom | 96 |
1 files changed, 60 insertions, 36 deletions
diff --git a/examples/how_do_i.nom b/examples/how_do_i.nom index 104d135..0b0019c 100644 --- a/examples/how_do_i.nom +++ b/examples/how_do_i.nom @@ -1,4 +1,4 @@ -#!/usr/bin/env nomsu -V2.3.4.3 +#!/usr/bin/env nomsu -V2.5.4.3 # How do I... # Write a comment? Put a # and go till the end of the line # How do I write a multi-line comment? @@ -56,10 +56,12 @@ say ".." Or, two backlashes will be treated as a single backslash, no matter what follows, like this: \\%foobar <- won't insert any values - If you need to split a long line without inserting a newline, you can end a line \ - ..with backslash and start the next line with two periods, like that. + If you need to split a long line without inserting a newline, you can end a line with backslash and start the next line \ + ..with two periods, like that. - Similarly, you can put a long interpolated indented value like: \(1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9) between a backslash and two periods. + Similarly, you can put a long interpolated indented value like: \(..) + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + .. between a backslash and two periods. say "Single-line text can contain escape sequences like \", \\, \000, and \n" @@ -81,8 +83,8 @@ say %my_list.1 say (length of %my_list) # How do I define a dictionary/hash map? -%my_dict = {x: 99, y: 101} -%my_dict = {x: 101, y: 2, "99 bottles": 99, 653: 292} +%my_dict = {x:99, y:101} +%my_dict = {x:101, y:2, "99 bottles":99, 653:292} # How do I use a dict? # Dicts are also implemented as Lua tables, so they're accessed and modified the same way as lists @@ -90,41 +92,59 @@ say %my_dict.x %my_dict.x = 9999 # How do I do conditional branching? -if (1 < 10): say "1 is indeed < 10" -if (1 > 10): say "this won't print" -..else: say "this will print" +if (1 < 10): + say "1 is indeed < 10" + +if (1 > 10): + say "this won't print" +..else: + say "this will print" # There's no "elseif", so for longer conditionals, a "when" branch is the best option -when: - * (3 > 6) - * (3 > 5) - * (3 > 4): say "this won't print" - * (3 > 3): say "this won't print" - * (3 > 2): say "this will print" - *else: say "this is the default case" +if: + (3 > 6) (3 > 5) (3 > 4): + say "this won't print" + + (3 > 3): + say "this won't print" + + (3 > 2): + say "this will print" + + else: + say "this is the default case" # How do I do a switch statement? -when 3 = ?: - * 0 - * 1 - * 2: say "this won't print" - * 3: say "this will print" - *else: say "this won't print" +if 3 is: + 0 1 2: + say "this won't print" + + 3: + say "this will print" + + else: + say "this won't print" # How do I loop over a list (a foreach loop)? %list = [1, 2, 3] -for %x in %list: say "For %x loop #\%x" +for %x in %list: + say "For %x loop #\%x" + # How do I loop over a number range? # This is inclusive, so it will loop over 1,2, and 3 -for %i in 1 to 3: say "For %i in 1 to 3 loop #\%i" +for %i in 1 to 3: + say "For %i in 1 to 3 loop #\%i" + # This will print 0,2, and 4 for %even in 0 to 5 by 2: say "Even #\%even" -for %backwards in 3 to 1 by -1: say "Backwards #\%backwards" +for %backwards in 3 to 1 by -1: + say "Backwards #\%backwards" + # How do I do a 'while' loop? %x = 1 @@ -182,7 +202,8 @@ action [..] I hate %worse_things more than %better_things I think %worse_things are worse than %better_things I like %better_things more than %worse_things -..: say "\(%better_things capitalized) rule and \%worse_things drool!" +..: + say "\(%better_things capitalized) rule and \%worse_things drool!" I like "dogs" more than "cats" I think "chihuahuas" are worse than "corgis" @@ -208,7 +229,7 @@ action [>> %foo_bar $$$^ --> % @&_~-^-~_~-^ %1 !]: >> "wow" $$$^ --> "so flexible!" @&_~-^-~_~-^ "even numbers can be variables!" ! # There's also full unicode support -%こんにちは = "\227\129\147\227\130\147\227\129\171\227\129\161\227\129\175" +%こんにちは = "こんにちは" action [% と言う] "\%世界" say (%こんにちは と言う) @@ -228,7 +249,9 @@ say (2 + 3) say (2 + 3) # If you need to keep going after an indented region, you can start the next line with ".." -say both "Very long first argument that needs its own line" and also "short second arg" +say both "Very long first argument that needs its own line" and also ".." + short second arg + action [my favorite number] (21 + 2) # This can be nested: @@ -236,9 +259,7 @@ say both (my favorite number) and also "foo" # Macros: # The "lua> %" and "=lua %" macros can be used to write raw lua code: -action [say the time] (..) - lua> "io.write(\"The OS time is: \", os.time(), \"\\n\");" - +action [say the time] (lua> "io.write(\"The OS time is: \", os.time(), \"\\n\");") say the time say "Math expression result is: \(=lua "(1 + 2*3 + 3*4)^2")" @@ -251,7 +272,10 @@ parse [if %condition is untrue %body] as (if (not %condition) %body) # Or to transform nomsu code into custom lua code using "compile % to %" compile [if %condition on opposite day %body] to (..) - Lua "if not \(%condition as lua expr) then\n \(%body as lua statements)\nend" + Lua ".." + if not \(%condition as lua expr) then + \(%body as lua statements) + end # Constants can be defined as macros @@ -277,11 +301,11 @@ if (1 > (TWENTY)) on opposite day: # How do I use an action as a value? # Well... it's always *possible* to fall back to Lua behavior for something like this: action [best of %items according to %key_fn]: - set {%best: nil, %best_key: nil} + set {%best:nil, %best_key:nil} for %item in %items: %key = (=lua "\%key_fn(\%item)") if ((%best is (nil)) or (%key > %best_key)): - set {%best: %item, %best_key: %key} + set {%best:%item, %best_key:%key} return %best @@ -293,11 +317,11 @@ say (best of [2, -3, 4, -8] according to ([%x] -> (%x * %x))) want to use: parse [best of %items where %item_var has score %key_expr] as (..) result of: - set {%best: nil, %best_key: nil} + set {%best:nil, %best_key:nil} for %item_var in %items: %key = %key_expr if ((%best is (nil)) or (%key > %best_key)): - set {%best: %item_var, %best_key: %key} + set {%best:%item_var, %best_key:%key} return %best |