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236 Commits

Author SHA1 Message Date
Rangi
1dafc1c762 Allow empty macro arguments, with a warning 
Fixes #739
 2021-02-28 10:38:49 -08:00
Rangi
63d15ac8c9 append_yylval_tzString should always evaluate its argument 
Fixes #762
 2021-02-28 10:38:49 -08:00
Rangi
1f579deaff Trim right whitespace from macro args before warning about length 2021-02-28 10:38:49 -08:00
Rangi
fad48326f8 Support /* block comments */ in macro arguments 
Fixes #746
 2021-02-28 10:38:49 -08:00
Rangi
3c5e1caa7c Disallow "." as a local label 
Fixes #760
 2021-02-25 04:40:42 +01:00
Rangi
d4028fff10 Prevent ELIF or ELSE after an ELSE 
Fixes #749
 2021-02-25 04:39:49 +01:00
Eldred Habert
dafef5a953 Remove column 1 restriction for labels with colons (#635) 
Partial fix for #457
 2021-02-23 14:42:24 -05:00
ISSOtm
cd072d5e6a Add assertion check for potential UAF trigger 
It actually currently triggers if an INCLUDE directive is given at EOF,
but #742 will fix that.
 2021-02-19 16:53:30 +01:00
ISSOtm
c29b616f93 Fix forgotten initialization of lexerState->isReferenced 2021-02-18 16:33:06 +01:00
Rangi
39c179aa32 Fix missing newline in a dbgPrint 2021-02-17 13:14:02 -05:00
Rangi
efbfeca292 Avoid two peek(1) calls when lexing """multi-line strings""" 2021-02-17 10:36:36 -05:00
Rangi
d049ffc0f0 Handle string literals within macro arguments (#685) 
Fixes #683 and #691

The lexer's raw mode for reading macro args already attempted
to handle semicolons inside string literals, versus outside ones
which start comments. This change reuses the same function for
reading string literals in normal and raw modes, also handling:

- Commas in strings versus between macro args
- Character escapes
- {Interpolations} and \1-\9 args inside vs. outside strings
- Multi-line string literals

Macro args now allow escaping '\', '"', and '\\'.

A consistent model for expanding macro args and interpolations,
within macro args, string literals, and normal context:

- "{S}" should always equal the contents of S
- "\1" should always act like quoting the value of \1
 2021-02-16 22:44:25 -05:00
Rangi
96bce05be2 Newlines in multi-line strings update the line number 
This affects error and warning messages, and dbgPrint
 2021-02-14 16:16:52 +01:00
Rangi
8415ce3ed0 Correct the keywordDict size 
The stale keywords XDEF and GLOBAL were removed,
so there can be fewer keyword nodes.
 2021-02-14 16:16:52 +01:00
Rangi
ebb5aab6db Correct some comments 
nPCOffset no longer exists, and the lexer only
returns T_NEWLINE for EOF in raw mode.
 2021-02-14 16:16:52 +01:00
ISSOtm
88e1cc7302 Make EOF token name consistent across Bison versions 
The "end of file" name apparently only became a default recently
 2021-02-11 13:04:43 +01:00
ISSOtm
b3c0db218d Remove "EOF-newline" lexer hack 
In preparation for an upcoming change
Makes for nicer error messages, complaining about EOF instead of newlines
The hack had to be kept for the lexer raw mode to avoid a bug;
see the relevant code comment for more info.
 2021-02-11 12:48:37 +01:00
ISSOtm
70bbb098d3 Remove stale keywords 
They were removed from the grammar, but not the lexer
 2021-01-23 00:05:56 +01:00
ISSOtm
a679e02246 Get rid of asm.h and localasm.h 
No need to make them global
 2021-01-22 13:34:16 +01:00
ISSOtm
fa0fa4d5ac Significantly overhaul OPT code 
Simplify the mess that was option setting (2 redundant variables !?)
Move options to a separate file
Have "modules" own their options, and OPT only access them (less redundancy)
Simplify code, respect naming conventions better
 2021-01-22 10:41:09 +01:00
Rangi
df16e64fc6 Handle MACRO and REPT/FOR bodies differently 
Fixes #697
 2021-01-15 02:16:37 +01:00
Rangi
eb4952c188 Use more verbose syntax error messages 
Fixes #385
 2021-01-14 18:36:10 +01:00
Rangi
cab9cb06a3 Store IF depth relative to each fstack context 
This disallows starting/ending an IF inside an
INCLUDEd file or a macro expansion
 2021-01-09 20:12:14 +01:00
Rangi
62bea23c49 Implement BREAK to exit REPT and FOR loops 
Fixes #684
 2021-01-08 21:13:23 +01:00
Rangi
7ce5cf1595 Convert floating to fixed point by rounding, not truncation 
Fixes #678
 2021-01-04 21:23:43 +01:00
Rangi
7e3fc1db03 Fix Actions CI for MSVC 
Fixes #616
 2021-01-04 02:01:25 +01:00
Rangi
77279984a5 Implement STRRPL 
Fixes #660

STRRPL(str, "", new) does nothing
(warn about it with -Wempty-strrpl)
 2021-01-04 00:20:35 +01:00
ISSOtm
bd244e6865 Remove deprecated features 
Trimming off the fat!
- GLOBAL and XDEF keywords
- Colon-less global labels
- *-comments
 2021-01-02 02:42:44 +01:00
Rangi
a70ecba06f Implement PRINT and PRINTLN (#672) 
Fixes #669
Closes #368
Closes #624

Deprecate PRINTT, PRINTV, PRINTI, and PRINTF

Default STRFMT("%f") to 5 fractional digits like "{f:}"
Any use of string formatting will share this default
 2021-01-02 02:37:32 +01:00
Rangi
9d2d5cfcfe Implement REDEF to allow redefining EQUS string equates 
Fixes #677
 2021-01-02 01:49:00 +01:00
Rangi
895ec5564d Update mathematical functions (#675) 
Document the existing `ROUND`, `CEIL`, and `FLOOR` functions
Also update the trig function docs for searchability

Implement `POW` and `LOG`
Addresses part of #675

Implement ** for integer exponents
** has higher precedence than -, like Python, so -3**4 == -(3**4) == 81
 2021-01-02 01:39:20 +01:00
Rangi
7bb6f71f0b Change FOREACH to FOR (#680) 2021-01-02 00:46:26 +01:00
Rangi
2a9d52871b Make dbgPrint in lexer.c report the correct colNo (#676) 
Fixes #656
 2021-01-01 18:44:47 +01:00
ISSOtm
c4fb5591ee Fix size of unterminated REPT/FOREACH blocks 
Do not "uncapture" ENDR if it was not read in the first place
 2020-12-30 15:52:24 +01:00
Rangi
c0ce1da4c3 Implement STRFMT and more printf-like format specifiers for string interpolation (#646) 
Fixes #570
Fixes #178

Use errors for inapplicable format spec flags instead of -Wstring-format
 2020-12-29 22:53:15 +01:00
Rangi
6874f694e5 Implement FOREACH (#658) 
This acts like `REPT` with a variable automatically
incremented across a range of values

Fixes #432
 2020-12-29 21:30:42 +01:00
ISSOtm
c20ac35074 Refactor readString 
Much more readable, and avoids `peek(nz)`
 2020-12-19 13:02:05 +01:00
Rangi
255b8bf9ba Implement """triple-quoted""" multi-line strings 
Fixes #589
 2020-12-19 12:34:32 +01:00
Rangi
1d9cc01ae1 Macro arguments within a string literal are read into the string, not expanded 
Fixes #643
 2020-12-15 21:28:15 +01:00
ISSOtm
8f2a894b88 Add anonymous labels 
Fix #497
 2020-12-14 10:14:40 +01:00
Rangi
0e40543757 Implement \# to expand to all unshifted macro arguments 
Fixes #596
 2020-12-14 00:12:36 +01:00
Rangi
ce58f6d6be Allow {symbol} interpolation outside of strings 
Fixes #629

Closes #631
 2020-12-13 23:53:16 +01:00
Rangi
861cb552c4 discardBlockComment sets lexerState->disableMacroArgs = true, like discardComment 2020-12-12 01:34:01 +01:00
ISSOtm
21b58b08b8 Fix not shifting CRLF at end of raw lines 
Fixes line reporting errors on Windows
 2020-12-10 15:37:50 +01:00
Rangi
af530859f0 Allow underscores in numeric literals 
Fixes #539

Changes \@'s output to start with "_u", not "_", so it will be valid within labels but not numerics
 2020-12-10 15:34:21 +01:00
Rangi
58739b0bf2 Implement STRRIN, like STRIN but searching from the right 2020-12-10 15:32:17 +01:00
ISSOtm
2b6d9cd1e0 Avoid using yytoken_kind_t 
Apparently it was added in a fairly recent Bison version...
 2020-12-10 13:32:18 +01:00
ISSOtm
9b6f01047c Enable raw token types 
Removes one layer of indirection for the parser, and helps remove all literals from the grammar

The latter preparing the next change
 2020-12-09 21:22:05 +01:00
ISSOtm
462fd7539c Prohibit nested macros 
After discussion (starting there:
https://github.com/gbdev/rgbds/pull/594#issuecomment-706437458
), it was decided that plain nested macros should not be
allowed.
Since #590 is fixed, EQUS can be used as a workaround;
multiline strings (#589) will make that easier on the
user when implemented.
Fixes #588, supersedes and closes #594.
Additionally, closes #388.
 2020-12-09 10:44:39 +01:00
ISSOtm
f16e34b804 Fix captures beginning in expansions 
Fixes #590
 2020-12-09 09:54:55 +01:00