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228 Commits

Author SHA1 Message Date
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
ISSOtm
57b734a7df Reinstate RL into the _RS family 
Removal of colon-less labels lifted the grammar ambiguity that
prevented `RL` from being usable as a variable declarator.
Thus, reinstate its functionality.
 2021-01-11 01:38:03 +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
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
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
Rangi
f31deb5010 Fix STRUPR and STRLWR after 5aabb915ec 
Fixes #647
 2020-12-15 20:18:45 +01:00
ISSOtm
8f2a894b88 Add anonymous labels 
Fix #497
 2020-12-14 10:14:40 +01:00
ISSOtm
5aabb915ec Allow STRCAT to take any number of args 
Fixes bullet point 1 of #625
 2020-12-12 23:46:32 +01:00
ISSOtm
f5b0eae9cd Remove custom action code when equivalent to default 
Enables Bison to better reason about it, and should improve performance
 2020-12-12 12:22:36 +01:00
Rangi
165bd8cb71 Allow 'dw' and 'dl' to apply to characters of strings 
Fixes #568

The old behavior of `dw "string"` can be replicated with `dw ("string")`; likewise for dl
 2020-12-11 11:02:20 +01:00
Rangi
58739b0bf2 Implement STRRIN, like STRIN but searching from the right 2020-12-10 15:32:17 +01:00
ISSOtm
3e4c2fe712 Avoid error with old Bison versions 
`api.token.raw` is only defined starting with Bison 3.5
Since it's not essential, define it on the command-line iff the Bison
version is sufficient.
 2020-12-10 15:13:45 +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
eac365aef0 Allow argument to rb, rw and rl to be optional 
Fixes #617
 2020-12-09 09:31:47 +01:00
ISSOtm
4f842a1248 Create specialized symbol finder functions 
The old "find symbol with auto scope" function is now three:
- One finds the exact name passed to it, skipping any checks
  This is useful e.g. if such checks were already performed.
- One checks that the name is not scoped, and calls the first.
  This is useful for names that cannot be scoped, such as checking for EQUS.
  Doing this instead of the third should improve performance somehwat, since
  this specific case is hit by the lexer each time an identifier is read.
- The last one checks if the name should be expanded (`.loc` → `Glob.loc`),
  and that the local part is not scoped. This is essentially the old function.
 2020-11-21 01:06:17 +01:00
Jakub Kądziołka
4e1d79081c Improve error message for negative shift arguments 2020-10-13 15:42:16 +02:00
Jakub Kądziołka
045a9e8b93 Report only one error when invalid shift has argument 
Not to mention that incrementing a variable in a loop is kinda dumb.
 2020-10-12 22:54:20 +02:00
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
2dd9015dc6 Remove two stale variables from parser.y 
They were made useless with the lexer rewrite
 2020-10-12 00:52:12 +02:00
ISSOtm
01637768cf Rename asmy to more explicit parser 
This should make the purpose of that file clearer to newcomers
 2020-10-11 21:03:41 +02:00