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* cpp: fix __has_builtin lemon2026-02-231-2/+8
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* cpp: add __COUNTER__ macro lemon2026-02-231-131/+172
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* preprocessor: fix an edge case with erroneously recursive macro expansion lemon2026-02-221-26/+42
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* cpp: better diagnostics lemon2026-02-211-13/+40
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* cpp: add __VA_OPT__ and comma ## __VA_ARGS__ pasting lemon2026-02-061-5/+40
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* c: GNU __attribute__ stubs lemon2026-01-251-0/+1
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* driver: -iquote, -isystem, etc lemon2026-01-121-15/+27
| | | | With GCC-like search order
* cpp: prioritize internal headers over system headers lemon2026-01-101-6/+6
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* Add version tracking. Starting at 0.1.0 lemon2026-01-091-4/+14
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* cpp: fix pasting ident+keyword lemon2026-01-091-4/+7
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* lexer: multibyte escape seqs in wide character literal lemon2026-01-091-4/+13
| | | | (hacky)
* cpp: fix multiline comment in skipped preprocessor directive lemon2026-01-091-2/+16
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* cpp: fix single-line comment after preprocessor directive lemon2026-01-091-1/+1
| | | | It was eating up the newline token
* cpp: nicer handling of predefined macros lemon2025-12-291-40/+29
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* backend: start implementing aarch64 lemon2025-12-281-0/+4
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* preprocessor make some errors just warnings lemon2025-12-221-4/+6
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* c: Fix some dumb uses of initialized stuff lemon2025-12-221-3/+7
| | | | | | Can't figure out what's wrong with the change to struct expr from 9721d6ba40 but it makes valgrind complain and causes miscompilation of the compiler itself..
* c: keyword aliases lemon2025-12-211-4/+17
| | | | | Some linux headers use __signed__ for whatever reason.. this is a general fix for those alternate keyword
* lexer: more small optimizations lemon2025-12-211-14/+33
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* lexer: note source of #include when error occurs in #included file lemon2025-12-201-0/+6
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* c: support CRLF newlines lemon2025-12-201-3/+11
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* lexer: fix remnant use of TKEOF for character lemon2025-12-201-9/+7
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* optimize lexer a bit more lemon2025-12-201-60/+86
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* lexer: convert pp-idents to keywords only after preprocessing lemon2025-12-201-63/+65
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* cpp: GNU extension for named variadic arguments lemon2025-12-181-4/+7
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* cpp: better error recovery for #define syntax error lemon2025-12-181-6/+7
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* nicer defaults and facilities for cross-compilation lemon2025-12-171-2/+16
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* create distinct interned string type lemon2025-12-151-22/+21
| | | | | | | | | | | | | | Interned strings are used pervasively, so it's a good idea to add a layer of type safety to differentiate them from general cstrs and avoid potential bugs from comparing non-interned and interned strings. Not that that's happened so far that I can remember, but it could. I'm 90% sure it's legal to alias `struct {char c;}` pointers with `char` pointers. This specific typedef gives type safety but with a simple one-way `internstr -> const char *` typecast (with `&istr->c`). Converting the other way around is more intentional: a straight up cast `(internstr)cstr` which sticks out as unchecked and probably wrong, or calling the intern(cstr) function, which is the right way.
* move intern() to mem.c lemon2025-12-151-45/+0
| | | | | Being in lex.c was vestigial, since it was being used all over the frontend and backend.
* lex: loop with goto instead of tail recursion lemon2025-12-151-7/+8
| | | | | This uncovered a edgecase with loops and lifetime construction in regalloc!
* lexer: use a hashmap to lookup keywords lemon2025-12-151-27/+27
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* cpp: support #line directives lemon2025-12-141-10/+75
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* cpp: correctly handle extra tokens after directives lemon2025-12-141-16/+21
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* s/amd64/x86_64/ lemon2025-12-121-1/+1
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* lex: use pmap for macro lookup lemon2025-12-121-125/+69
| | | | To reduce hashmap code repetition. Also add pmap_del for this purpose
* rename arraylength macro -> countof lemon2025-12-111-20/+20
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* -trigraphs option lemon2025-12-111-3/+3
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* lex/expr(): cleanup lemon2025-12-111-29/+29
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* lexer: properly add padding for cpppredefs lemon2025-12-101-2/+2
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* lex: make some hashtables resizable lemon2025-12-091-29/+67
| | | | Was hiting the fixed limits trying to preprocess sqlite3amalgamation
* add command-line predefined macros (-D, -U) lemon2025-12-061-4/+52
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* cpp: implement preprocessor expressions short circuiting behaviour lemon2025-12-031-17/+23
| | | | This only affects whether an error is given for something like `0 && 0/0` (it shouldn't)
* preprocessor: add #ifndef...#endif include guard optimization lemon2025-12-021-11/+27
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* lex: remove some hacks and optimize preprocessor lemon2025-11-281-39/+34
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* pp: fix token pasting (hopefully) lemon2025-11-241-27/+15
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* lex: TEMP hack: #define __x86_64__ or some system headers break subtly lemon2025-11-231-0/+1
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* cpp: fix bugs with recursive macro expansion (hopefully) lemon2025-11-231-28/+24
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* cpp: fix ## bug lemon2025-11-231-1/+1
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* c: move warning for extension keyword til after preprocessor lemon2025-11-221-2/+2
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* lex: #include ".." should also look in working directory lemon2025-11-221-19/+17
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