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| v3:grammar [2022/01/09 10:53] – neils | v3:grammar [2022/01/09 11:59] (current) – removed neils | ||
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| - | ====== Grammar ====== | ||
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| - | This is the formal definition of XC=BASIC' | ||
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| - | ===== Program ===== | ||
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| - | < | ||
| - | <svg xmlns=" | ||
| - | < | ||
| - | <style type=" | ||
| - | @namespace " | ||
| - | .line | ||
| - | .bold-line | ||
| - | .thin-line | ||
| - | .filled | ||
| - | text.terminal | ||
| - | font-size: 12px; | ||
| - | fill: #141000; | ||
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| - | } | ||
| - | text.nonterminal | ||
| - | font-size: 12px; | ||
| - | fill: #1A1400; | ||
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| - | } | ||
| - | text.regexp | ||
| - | font-size: 12px; | ||
| - | fill: #1F1800; | ||
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| - | } | ||
| - | rect, circle, polygon {fill: #332900; stroke: #332900;} | ||
| - | rect.terminal | ||
| - | rect.nonterminal | ||
| - | rect.text | ||
| - | polygon.regexp | ||
| - | </ | ||
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| - | |||
| - | Program | ||
| - | |||
| - | ===== Line ===== | ||
| - | |||
| - | < | ||
| - | <svg xmlns=" | ||
| - | < | ||
| - | <style type=" | ||
| - | @namespace " | ||
| - | .line | ||
| - | .bold-line | ||
| - | .thin-line | ||
| - | .filled | ||
| - | text.terminal | ||
| - | font-size: 12px; | ||
| - | fill: #141000; | ||
| - | font-weight: | ||
| - | } | ||
| - | text.nonterminal | ||
| - | font-size: 12px; | ||
| - | fill: #1A1400; | ||
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| - | } | ||
| - | text.regexp | ||
| - | font-size: 12px; | ||
| - | fill: #1F1800; | ||
| - | font-weight: | ||
| - | } | ||
| - | rect, circle, polygon {fill: #332900; stroke: #332900;} | ||
| - | rect.terminal | ||
| - | rect.nonterminal | ||
| - | rect.text | ||
| - | polygon.regexp | ||
| - | </ | ||
| - | </ | ||
| - | < | ||
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| - | <rect x=" | ||
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| - | </ | ||
| - | |||
| - | Line ::= Label? ( Statement ( ':' | ||
| - | |||
| - | Referenced by: | ||
| - | * [[# | ||
| - | |||
| - | ===== Statement ===== | ||
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| - | < | ||
| - | <svg xmlns=" | ||
| - | < | ||
| - | <style type=" | ||
| - | @namespace " | ||
| - | .line | ||
| - | .bold-line | ||
| - | .thin-line | ||
| - | .filled | ||
| - | text.terminal | ||
| - | font-size: 12px; | ||
| - | fill: #141000; | ||
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| - | } | ||
| - | text.nonterminal | ||
| - | font-size: 12px; | ||
| - | fill: #1A1400; | ||
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| - | } | ||
| - | text.regexp | ||
| - | font-size: 12px; | ||
| - | fill: #1F1800; | ||
| - | font-weight: | ||
| - | } | ||
| - | rect, circle, polygon {fill: #332900; stroke: #332900;} | ||
| - | rect.terminal | ||
| - | rect.nonterminal | ||
| - | rect.text | ||
| - | polygon.regexp | ||
| - | </ | ||
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| - | < | ||
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| - | </ | ||
| - | |||
| - | Statement | ||
| - | ::= ' | ||
| - | | _CALL | ||
| - | | _CONST | ||
| - | | _CONTINUE | ||
| - | | _DATA | ||
| - | | _DECLARATION | ||
| - | | _DIM | ||
| - | | _DO | ||
| - | | _LET | ||
| - | | _END | ||
| - | | _EXIT | ||
| - | | _ERROR | ||
| - | | ' | ||
| - | | _FIELD | ||
| - | | _FOR | ||
| - | | _FUNCTION | ||
| - | | _GENERIC | ||
| - | | _GET | ||
| - | | _GOTO | ||
| - | | _GOSUB | ||
| - | | _INCBIN | ||
| - | | _INCLUDE | ||
| - | | _IF | ||
| - | | _INPUT | ||
| - | | _LOOP | ||
| - | | _NEXT | ||
| - | | _ON | ||
| - | | _ORIGIN | ||
| - | | _PRINT | ||
| - | | _READ | ||
| - | | _REM | ||
| - | | _RETURN | ||
| - | | _SUB | ||
| - | | _SWAP | ||
| - | | _SYS | ||
| - | | _TYPE | ||
| - | | _WRITE | ||