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2020-10-14lexer: rewriteJo-Philipp Wich
Rewrite the lexer into a restartable state machine to support parsing from file streams without the need to read the entire source text into memory first. As a side effect, the length of labels and strings is unlimited now. Signed-off-by: Jo-Philipp Wich <jo@mein.io>
2020-09-24syntax: add regular expression supportJo-Philipp Wich
Signed-off-by: Jo-Philipp Wich <jo@mein.io>
2020-09-22syntax: introduce case statement supportJo-Philipp Wich
Signed-off-by: Jo-Philipp Wich <jo@mein.io>
2020-09-21syntax: introduce try/catch blocksJo-Philipp Wich
Signed-off-by: Jo-Philipp Wich <jo@mein.io>
2020-09-11syntax: introduce !== and === operatorsJo-Philipp Wich
Also treat "in" as relational operator. Signed-off-by: Jo-Philipp Wich <jo@mein.io>
2020-09-06treewide: refactor internal AST structuresJo-Philipp Wich
- unify operand and value tag structures - use a contiguous array for storing opcodes - use relative offsets for next and children ops - defer function creation to runtime - rework "this" context handling by storing context pointer in scope tags Signed-off-by: Jo-Philipp Wich <jo@mein.io>
2020-08-25treewide: add proper null value handlingJo-Philipp Wich
Signed-off-by: Jo-Philipp Wich <jo@mein.io>
2020-08-25treewide: introduce this keywordJo-Philipp Wich
Support a new keyword `this` which allows functions to access the context they're called upon. Signed-off-by: Jo-Philipp Wich <jo@mein.io>
2020-08-25lexer.h: add T_RESSOURCE op typeJo-Philipp Wich
Signed-off-by: Jo-Philipp Wich <jo@mein.io>
2020-08-25treewide: add dedicated T_CFUNC typeJo-Philipp Wich
Tag C function values with a dedicated T_CFUNC type to clearly differentiate them from runtime declared functions. Signed-off-by: Jo-Philipp Wich <jo@mein.io>
2020-08-25lexer.c, eval.c: move T_EXCEPTION definition to lexer headerJo-Philipp Wich
Signed-off-by: Jo-Philipp Wich <jo@mein.io>
2020-08-21Initial commitJo-Philipp Wich
Signed-off-by: Jo-Philipp Wich <jo@mein.io>
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