Commit Graph

14 Commits

Author SHA1 Message Date
Rangi
2005ed1df9 Implement CHARLEN and CHARSUB
Fixes #786
2021-04-17 18:18:34 -04:00
Rangi
c278a361da Remove the unused calchash djb2 hash function
Note that hashmap.c uses its own FNV-1a hash function
2021-04-13 17:41:12 +02:00
Rangi
a2f52867ad Rename print to printChar
This clarifies its usage, for printing a single character
in error messages.
2021-04-13 17:41:12 +02:00
Rangi
ab79e6bede Change how print(c) formats reported characters
Printable ASCII becomes single-quoted, using backslash
escapes if necessary. Unprintable characters use 0xNN
formatting, without quotes.
2021-04-13 17:41:12 +02:00
ISSOtm
60019cf476 Fix a bunch of Clang warnings
As reported by #789
Should avoid relying on 32-bit int (for implicit conversions)
and account for more extreme uses of RGBDS.
2021-03-10 10:56:57 +01:00
Rangi
d5a00cf634 Comment cites the string hash algorithm (djb2)
"If you just want to have a good hash function,
and cannot wait, djb2 is one of the best string
hash functions I know."
2021-01-19 15:03:22 +01:00
ISSOtm
0d9de01f9d Make charmap-converting a non-UTF8 string non-fatal 2020-12-12 14:16:50 +01:00
Jakub Kądziołka
6767d11c23 utf8decoder: Use byte-sized byte argument
This prevents passing a negative value out of a signed char by accident.
Also renders some casts in the code superfluous.
2020-10-12 01:22:09 +02:00
ISSOtm
cd747d8175 Fix many lexer bugs
More to come...
2020-10-04 04:39:25 +02:00
ISSOtm
4c9a929a14 Implement almost all functionality
Add keywords and identifiers
Add comments
Add number literals
Add strings
Add a lot of new tokens
Add (and clean up) IF etc.
Improve reporting of unexpected chars / garbage bytes
Fix bug with and improved error messages when failing to open file
Add verbose-level messages about how files are opened
Enforce that files finish with a newline
Fix chars returned not being cast to unsigned char (may conflict w/ EOF)
Return null path when no file is open, rather than crash
Unify and improve error printing slightly

Known to be missing: macro expansion, REPT blocks, EQUS expansions
2020-10-04 04:38:50 +02:00
ISSOtm
4cfed3c98f Rewrite charmap system
Avoid allocating a *ton* of data per charmap
Stop relying on uninitialized data in charmap nodes
Only initialize charmap nodes lazily
2020-10-04 04:31:10 +02:00
ISSOtm
a1286e6f0e Make newlines explicit in error messages
In preparation for a change a PR is about to make
2020-09-27 10:54:06 +02:00
ISSOtm
191ee4ba1f Add support for toggleable warnings 2019-11-18 20:45:21 +01:00
dbrotz
e05199ca1e Add support for multiple charmaps
This adds two new directives: newcharmap and setcharmap.
newcharmap creates a new charmap and switches to it.
setcharmap switches to an existing charmap.
2019-08-29 21:54:06 -07:00