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fc0a943ae838f23c72de519f51424f8e6bfc945c
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Author SHA1 Message Date
Max Wash
fc0a943ae8 lang: ast: improve cascade operator recipient resolution 
the cascade operator now uses the precedence of the last message parsed
to determine the recipient of the subsequent messages, reducing the need
for parentheses and making the semantics of the operator more
predictable.

all messages in a cascade now inherit the precedence of the first
message in the cascade.
 2024-12-05 16:53:59 +00:00
Max Wash
ad8ce82bad doc: add match statement to sample file 2024-12-04 22:23:33 +00:00
Max Wash
7acf80f930 lang: ast: implement parsing of match statements 2024-12-04 22:22:25 +00:00
Max Wash
0bb4a4284c lang: ast: re-factor condition group parser 
this parser now only handles if-else statements, and uses the state init callback argument to receive any pre-existing inline expressions
 2024-12-04 21:04:13 +00:00
Max Wash
a34b9c3710 lang: ast: fix expr_finalise not consuming the right-paren of a parenthesised expression 2024-12-04 20:18:40 +00:00
Max Wash
7d2e945384 doc: add more inline conditional expressions to sample file 2024-12-04 16:41:34 +00:00
Max Wash
84f3704db0 lang: ast: fix expr_finalise not handling complex message terminator 2024-12-04 16:41:18 +00:00
Max Wash
04ee7d77c0 doc: add more complex expressions to sample file 2024-12-04 16:35:54 +00:00
Max Wash
5af47ce443 frontend: add colours to conditional AST tree debug output 2024-12-04 16:35:41 +00:00
Max Wash
c23523ce14 lang: ast: implement parsing of inline and standalone if-else statements 2024-12-04 16:35:19 +00:00
Max Wash
d2677e2038 lang: lex: add hen keyword 2024-12-04 16:34:40 +00:00
Max Wash
0836a1d827 doc: add sample cascade operations 2024-12-03 21:58:02 +00:00
Max Wash
051cb1d2c2 lang: ast: implement cascade operator parsing 2024-12-03 21:57:44 +00:00
Max Wash
16ab13d738 lang: ast: re-factor expression parser into multiple files 2024-12-03 13:26:55 +00:00
Max Wash
1204bffb4d lang: ast: fix parsing of parenthesised sub-expressions in keyword arguments 2024-12-02 11:37:01 +00:00
Max Wash
45e2d5919a doc: add even more complex expressions to sample file 2024-12-02 11:00:00 +00:00
Max Wash
6d6adf5955 lang: ast: fix parsing of consecutive unary messages 2024-12-02 10:59:49 +00:00
Max Wash
d5898bb7d9 doc: add more complex expressions to sample file 2024-12-02 10:48:32 +00:00
Max Wash
5ec3e8fcd4 lang: ast: implement parsing of complex messages 2024-12-02 10:48:16 +00:00
Max Wash
1c5b23d968 lang: ast: re-write expression parser to support keyword messages 
also adjust some parser state callbackss to better support sub-parsers returning
 results to their parents.
 2024-12-02 07:56:27 +00:00
Max Wash
1c73e1d37b lang: ast: implement parsing of right-parenthesis in expressions 2024-12-01 13:56:05 +00:00
Max Wash
48d649a403 doc: fix mixed indentation in sample file 2024-12-01 13:26:40 +00:00
Max Wash
b5cb87e8df lang: fix lots of compiler warnings/errors 2024-12-01 13:25:36 +00:00
Max Wash
bb34e46c69 frontend: implement an ast node printer 2024-12-01 13:19:48 +00:00
Max Wash
c9dbc2e7e4 lang: re-arrange the operator table 2024-12-01 13:19:01 +00:00
Max Wash
051942e243 vim: add missing operators; fix highlighting of tokens after labels 2024-12-01 13:14:48 +00:00
Max Wash
624f183de8 lang: ast: fix inconsistent indentation 2024-11-29 12:06:06 +00:00
Max Wash
ec24e2c327 lang: ast: convert RPN expression queue to ast and replace generic EXPR node with it 2024-11-28 22:06:25 +00:00
Max Wash
05ced5d5fc lang: ast: define ast_node_type for some fundamental expression components 2024-11-28 22:05:37 +00:00
Max Wash
47c11e4c10 lang: ast: add missing #include 2024-11-28 22:04:22 +00:00
Max Wash
7aed34c875 lang: add some parser-internal operators 2024-11-28 22:01:31 +00:00
Max Wash
c3abcec05a doc: add some more complex expressions to Simple.im 2024-11-28 17:00:52 +00:00
Max Wash
b227b27c06 lang: ast: implement more of the expression parser 2024-11-28 17:00:37 +00:00
Max Wash
a37e4d23bb lang: ast: get_token_expr_type now uses the operator table to discern expression symbols 2024-11-28 16:59:04 +00:00
Max Wash
2a33ae44a5 lang: ast: move recipient tracking from msg handler node to selector node 2024-11-28 16:58:01 +00:00
Max Wash
4304b94491 lang: ast: implement single-expression message handler parsing 2024-11-28 16:57:10 +00:00
Max Wash
7530dd36a2 lang: ast: move block parser state to separate header file 
this allows other parsers to specify what kind of token should end the
block.
 2024-11-28 16:56:25 +00:00
Max Wash
6a765c4f2b lang: define operator arity and position 2024-11-28 16:54:48 +00:00
Max Wash
fc76fe6ad4 lang: ast: use fancy index manipulation to reduce the size of ast_node_type 2024-11-28 10:56:43 +00:00
Max Wash
f04c858d9a lang: lex: add base/limit markers around token type enums 2024-11-28 10:56:23 +00:00
Max Wash
811d3787c4 lang: ast: add a BLOCK ast node to hold lists of expressions 2024-11-28 10:26:53 +00:00
Max Wash
7f9894d8f9 lang: fix a bunch of compiler warnings 2024-11-27 22:45:34 +00:00
Max Wash
9df8474515 frontend: always print lex tokens when compiling file or repl input 2024-11-27 22:30:42 +00:00
Max Wash
101d87e09d lang: ast: implement simple identifier and operator expression parsing 2024-11-27 22:29:29 +00:00
Max Wash
31de937a21 lang: add operator precedence and associativity definitions 2024-11-27 22:29:01 +00:00
Max Wash
c7e3cea9b9 lang: lex: add definitions for some missing symbols and keywords 2024-11-27 22:28:17 +00:00
Max Wash
5af2692555 doc: document some additional operators in Person.im 2024-11-27 22:26:59 +00:00
Max Wash
a5c0606221 lang: lex: fix push_token not setting lex_prev_token 2024-11-27 12:56:39 +00:00
Max Wash
ad25b89af0 lang: ast: fix incorrect return types; add function to determine expression tokens 2024-11-27 12:56:10 +00:00
Max Wash
cd89c20beb lang: ast: implement control flags returned by parser functions 2024-11-26 21:30:40 +00:00