Andrew Kesterson
1eb8f9ffaa
Chained subtraction and exponentiation fold left instead of abandoning the rest of the line -- `1 - 2 - 3` gave -1 and dropped the `- 3`. A unary leaf's operand moves to .left, so a negative literal is one argument again and a second argument no longer overwrites it. An operator in a line's final column survives. Hex literals reach the parser whole. A leading zero is padding, not a radix. Item 16 stays pinned: the fix works and costs an upstream golden case, which is a decision rather than a defect. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
10 lines
421 B
QBasic
10 lines
421 B
QBasic
10 REM A leading zero is padding, not a radix. The reference selects base 8 for
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20 REM any lexeme starting with 0, so 010 printed 8 and 08 was a parse error --
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30 REM TODO.md section 6 item 10, fixed. Commodore BASIC has no octal literals.
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40 REM 0x is the one prefix that changes the base, and it now reaches the scanner
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50 REM whole: that was section 6 item 15.
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60 PRINT 010
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70 PRINT 08
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80 PRINT 0xff
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90 PRINT 0x10 + 1
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